Soda Systems & Superchil™ Refrigeration Units

Soda Systems & SuperChil™ Refrigeration Units

Technician’s Handbook This manual is updated as new information and models are released. Visit our website for the latest manual. www.manitowocfsg.com

America’s Quality Choice in Refrigeration Part Number STH12 9/10

Safety Notices As you work on Manitowoc equipment, be sure to pay close attention to the safety notices in this handbook. Disregarding the notices may lead to serious injury and/or damage to the equipment. Throughout this handbook, you will see the following types of safety notices:

! Warning Text in a Warning box alerts you to a potential personal injury situation. Be sure to read the Warning statement before proceeding, and work carefully.

! Caution Text in a Caution box alerts you to a situation in which you could damage the equipment. Be sure to read the Caution statement before proceeding, and work carefully.

Procedural Notices As you work on Manitowoc equipment, be sure to read the procedural notices in this handbook. These notices supply helpful information which may assist you as you work. Throughout this handbook, you will see the following types of procedural notices:

Important Text in an Important box provides you with information that may help you perform a procedure more efficiently. Disregarding this information will not cause damage or injury, but it may slow you down as you work.

NOTE: Text set off as a Note provides you with simple, but useful, extra information about the procedure you are performing. Read These Before Proceeding:

! Caution Proper installation, care and maintenance are essential for maximum performance and trouble- free operation of your Manitowoc equipment. If you encounter problems not covered by this handbook, do not proceed, contact Manitowoc Foodservice Group. We will be happy to provide assistance.

Important Routine adjustments and maintenance procedures outlined in this handbook are not covered by the warranty.

! Warning PERSONAL INJURY POTENTIAL Do not operate equipment that has been misused, abused, neglected, damaged, or altered/modified from that of original manufactured specifications.

We reserve the right to make product improvements at any time. Specifications and design are subject to change without notice. Table of Contents

General Information Model Numbers ...... 9 How to Read a Model Number ...... 10 Accessories ...... 10 Special Applications ...... 11 Model/Serial Number Location ...... 11 Warranty Information ...... 11 Installation Pre-installation Checklist ...... 13 Top Mounted Ice Maker Installations . . . 15 S250-M Dimensions ...... 16 MII-250 Dimensions ...... 18 MII-302 Dimensions ...... 20 MII-250 Installation Kit ...... 22 MII-302 Installation Kit ...... 23 Refrigeration Units ...... 25 Safe Installation Dos and Don’ts ...... 28 Location Requirements ...... 30 Electrical ...... 34 Plumbing/Water Supply ...... 38 Preparing Ice Bank – Non-ERC ...... 39 Preparing Ice Bank with ERC ...... 41 Component Identification Typical System ...... 43 Connections ...... 44 Maintenance Maintenance Schedule ...... 49 Cleaning and Sanitizing the Dispensing Valves and Product Lines ...... 54 Sanitizing ...... 58 Shipping, Storage and Relocation . . . . . 62 Operation How the Multiplex Works ...... 63 Differences Between the TS & SS Units .64 Equipment Setup Procedure (Non-ERC) 71

Part Number STH12 9/10 5 Start-up (Non-ERC) ...... 72 Sequence of Operation (Non-ERC) . . . . 74 Start-up (with ERC) ...... 76 Sequence of Operation (with ERC) . . . . 78 Equipment Setup Procedure (with ERC) 82 Equipment Close Procedure — All Units 84 Troubleshooting Electronic Refrigeration Control (ERC) Model Error Codes ...... 87 Checklist ...... 98 Problem Cross-reference Guide ...... 100 CO2 Gas System ...... 101 Carbonated Water System ...... 104 Circulating System ...... 111 Compressed Air System ...... 112 Dispensing Valve and Tower ...... 114 Electrical System ...... 119 Refrigeration System ...... 120 Syrup System ...... 123 Water Booster System ...... 125 Water Filter System ...... 127 When the Brix is OFF ...... 128 Component Check Procedures Test Procedures: MPC 64A Timer/Selection Pad ...... 131 Dual Transformers ...... 133 New MPC84A Portion Control Board . . . 134 MOVs Field Testing ...... 140 Test Procedures: MPC84C Timer/Selection Board ...... 141 Back-flow Preventer Maintenance . . . . . 144 Head Pressure Control Valve ...... 145 Charging Multiplex Remote Refrigeration Unit ...... 147 Compressor & Remote Condenser . . . . 148 Agitator Condenser ...... 149 Carbonation System A or B ...... 150 Circulation System A or B ...... 151 ERC Control Board, Keypad & Display . 152 Programming / Auto Set ...... 153

6 Part Number STH12 9/10 ERC Component (Output) Connector Layout 154 ERC Sensor (Input) Connector Layout . 154 Component Specifications Refrigeration Unit Specifications ...... 155 S-250M Specifications ...... 156 MII-302 Specifications ...... 156 Charts Refrigerant Charge ...... 157 Operating Pressures ...... 161 McDonald’s Models History ...... 163 Sustained Draw Curve Charts ...... 164 Diagrams Wiring Diagrams ...... 167 Soda Wiring Diagrams ...... 185 Super-Chil Wiring Diagrams ...... 200 Circuit Schematics ...... 212 Ice/Beverage Units Diagrams ...... 231

Part Number STH12 9/10 7 This Page Intentionally Left Blank

8 Part Number STH12 9/10 General Information

Model Numbers This manual covers the following models: (A) Air Cooled (W) Water Cooled (R) Remote Cooled 2803A04 2803W04 2803R04 2803AX04 2803WX04 2803RX04 2803A04 2803W04 2803R04 11MA04 11MW04 11MR04 11MAX04 11MAW04 11MRX04 11MA04 11MW04 11MR04 42MA04 42MW04 42MR04 42MAX04T 42MWX04T 42MRX04T 44MA04 44MW04 44MR04 44MAX04T 44MWX04T 44MRX04T 44EAX04T 44EWX04T 44ERX04T 50MA04 50MW04 50MR04 50MAX04 50MWX04 50MRX04 50MA04Q/T 50MW04Q/T 50MR04Q/T SC180A SC180W SC180R SC180AX SC180WX SC180RX SC340A SC340W SC340R SC340AX SC340WX SC340RX SC1000A SC1000W SC1000R SC1000AX SC1000WX SC1000RX SC2000A SC2000W SC2000R SC2000AX SC2000WX SC2000RX

Ice/Beverage Dispensers MII-302 S-250M

Part Number STH12 9/10 9 How to Read a Model Number

Condenser Type Model Base

Model Prefix Model Suffix

11M A 04 x

2803 & SC180 - 1/3 hp Special Configuration 11M & SC340 - 1/2 hp 44M, 42M & SC1000 - 1 hp 44E - 1 hp, TUV Approved 50M & SC2000 - 2.2 hp

04 - R404a refrigerant A - Air-cooled AX - Air-cooled, international R - Remote RX - Remote, international W - Water-cooled WX - Water-cooled, international

ICE/BEVERAGE MODEL NUMBERS

Model Base

Model Prefix Model Suffix

S–250–M

S - Ice/Beverage Dispenser M - Multiplex MII - Ice/Beverage Dispenser Ice Capacity

Accessories Depending on store type and location, various optional equipment (such as CO2 Panel, water filter kit, water booster kit, etc.) may be added to this system. Install and connect any optional equipment in the desired location according to the installation instructions provided with these kits/equipment.

10 Part Number STH12 9/10 Special Applications ATTENTION: MARINE INSTALLATIONS ! Warning This unit is for use on vessels over 66 ft (20 m) in length. This unit must not be installed in the engine space of a gasoline-powered ship.

NOTE: This unit must be secured to the vessel during installation. Models with part numbers beginning with the letters TS are NOT marine listed. OUTDOOR APPLICATIONS TS Multiplex Beverage Recirculating units are approved and listed by Underwriters Laboratories (UL). However they are not UL approved for weather exposure applications. These units must be installed in areas where adequate protection from the elements is provided, all other models are ETL listed. ! Warning Personal Injury Potential Do not operate equipment that has been misused, abused, neglected, damaged, or altered/modified from that of original manufactured specifications.

Model/Serial Number Location These numbers are required when requesting information from your local Manitowoc Distributor, service representative, or Manitowoc Foodservice. The model and serial number are listed on the OWNER WARRANTY REGISTRATION CARD. They are also listed on the MODEL/SERIAL NUMBER DECAL affixed to the unit.

Warranty Information Consult your local distributor for terms and conditions of your warranty. Your warranty specifically excludes all beverage valve brixing, general adjustments, cleaning, accessories and related servicing.

Part Number STH12 9/10 11 Your warranty card must be returned to activate the warranty on this equipment. If a warranty card is not returned, the warranty period can begin when the equipment leaves the factory. No equipment may be returned without a written Return Materials Authorization (RMA). Equipment returned without an RMA will be refused at the dock and returned to the sender at the sender’s expense. Please contact your local distributor for return procedures.

12 Part Number STH12 9/10 Installation

Pre-installation Checklist When installing any system, first make sure the major components are available. Generally the major components necessary for an installation are: B-I-B System also:

B-I-B connectors

B-I-B regulator set

B-I-B rack

B-I-B syrup boxes

Bulk Syrup System also:

Syrup connectors for Bulk tank

Gas connectors for Bulk tank

Bulk syrup tanks

Part Number STH12 9/10 13 Post Mix System:

CO2 regulator set

Beverage dispenser

Beverage tubing

CO2 tank

Carbonator

Stepless (Oetiker) clamps

Chain for CO2 tank

Double Check: Do you have enough space to install the dispenser or a dispenser and top mounted cuber?

Does top mounted cuber (if utilized) have a minimum of 6 inches (15.3 cm) clearance on all sides?

Is the countertop level?

Can the countertop support the weight of the dispenser, or the dispenser/cuber combination plus the weight of the stored ice?

14 Part Number STH12 9/10 Also consider the location of the following items before installation:

Water line

Drain

Power outlet

Heating and air conditioning ducts

Top Mounted Ice Maker Installations

Location — Avoid placing the dispenser and/or ice machine near heat sources such as radiators, ovens, refrigeration equipment and direct sunlight.

Clearances — Six inch (15.2 cm) clearance on all sides of the icemaker is needed.

Front of icemaker to be flush with front of dispenser — The front of the icemaker must be flush with the front of the dispenser. When the icemaker is flush with the front of the dispenser, some icemakers may overhang at the back of the dispenser.

Drains — A separate drain line is required for the ice machine, in addition to a drain line for the ice/beverage dispenser.

Dispensers require an adapter kit to install some top-mounted icemakers. Contact your local distributor for the correct adapter kit.

Part Number STH12 9/10 15 S250-M Dimensions

39.81" A (101.1 cm) 30.00" B (76.2 cm) A 9.94" C (25.2 cm) 4.44" D (11.3 cm) 22.63" E (57.5 cm) B 28.00" F (71.1 cm) 31.13" G (79.1 cm) 20.00" H (50.8 cm) 27.44" I (69.7 cm) C

E F G

16 Part Number STH12 9/10 S250-M FOOTPRINT

D Maximum C Area for Cutout I

E G

Minimum Area for Cutout J

ABCDE 30.00" 26.00" 8.00" 7.30" 11.00" (76.2 cm) (66.0 cm) (20.3 cm) (18.5 cm) (27.9 cm) FGH I J 15.00" 20.81" 3.00" 22.81" 31.13" (38.1 cm) (52.8 cm) (7.6 cm) (57.9 cm) (79.1 cm)

Part Number STH12 9/10 17 MII-250 Dimensions

Front View 39.00" A (99.1 cm) 12.50" B (31.8 cm) 30.00" C A (76.2 cm) 1.50" D B (3.8 cm) 9.94" E (25.2 cm) C 13.50" F Back View (34.3 cm) 20.00" G (50.8 cm) 30.50" H (77.5 cm) 28.38" K (72.1 cm) 22.50" L (57.2 cm) 21.69" M (55.1 cm) D E F 1.75" G N (4.4 cm) Bottom View 28.44" P (72.2 cm)

H K 3/8"-16 L Thread M Mounting Holes for optional legs P N

18 Part Number STH12 9/10 MII-250 FOOTPRINT

3/8"-16 B Thread Mounting Holes for Optional Maximum Area D Legs for Cutout C

Minimum area for I Cutout: F Install H conduit to J the back of E opening to allow 3/4" NPT forward Fitting movement for service Drainpan of flex manifold.

ABCDE 30.00" 26.00" 8.00" 8.00" 11.00" (76.2 cm) (66.0 cm) (20.3 cm) (20.3 cm) (27.9 cm) FGH I J 12.00" 13.50" 22.00" 24.00" 31.00" (30.5 cm) (34.3) (55.9cm) (61.0 cm) (78.7 cm)

Part Number STH12 9/10 19 MII-302 Dimensions

33.25" A (84.5 cm) 12.50" B A (31.8 cm) 42.75" B C (108.6 cm) 1.38" D (3.5 cm) C 5.59" E (14.2 cm) 9.10" F (23.1 cm) 12.16" G (30.9 cm) 31.00" H (78.7) 15.78" J L (40.1 cm) K 28.78" K H (73.1 cm) 22.50" L (57.2 cm) 0.82" M (2.1 cm) 26.97" N (68.5 cm) D 30.47" O (77.4 cm) 33.75" E M P F (85.7 cm) G J 37.16" Q N (94.4 cm) O P Q

20 Part Number STH12 9/10 MII-302 FOOTPRINT

Maximum Area D for Cutout C Minimum area for Cutout: Install J conduit to the back of I opening to allow forward F movement for service of K flex manifold. E

3/4" NPT Fitting

0.50 Drainpan (1.3) Cutouts for Extended Splash Panel Drain Tube G H

ABCD 42.75" 38.75" 8.00" 8.00" (108.6 cm) (98.4 cm) (20.3 cm) (20.3 cm) EFGH 17.38" 12.00" 8.54" 12.63" (44.1 cm) (30.5 cm) (21.7 cm) (32.1 cm) IJK 20.50" 24.00" 31.00" (52.1 cm) (61.0 cm) (78.7 cm)

Part Number STH12 9/10 21 MII-250 Installation Kit

Carb Water to Left Manifold Plain Water to Syrup Tubes Left Manifold to Valves Carb Water to Right Manifold Plain Water to 1/2" ID Tubing Right Manifold from Conduit (5X)

3/8" ID Tubing from Conduit (7X) Use Only for One Conduit Plain Water Line

Use Only for Two Conduit Carb Water Countertop Line

To Conduit

No. Part Number Description Qty. 1 00854998 Ell 1/2 x 3/8 Barb SS 2 2 00861304 Splicer 3/8 x 3/8 Barb 7 3 00861306 Splicer 1/2 x 1/2 Barb 3 4 5018595 Splicer Elbow SS 1/2 x 1/2 2 5 5030996 Elbow 1/4 x 3/8 Barb SS 7 6 5030997 Elbow 1/4 x 1/2 Barb SS 1 7 5030998 U-bend 1/2 x 1/2 WI - 1/2 Stem 3

22 Part Number STH12 9/10 MII-302 Installation Kit

Carb Water to Syrup Tubes Left Manifold to Plain Water to Valves Left Manifold Carb Water to Right Manifold 1/2" ID Tubing from Conduit (9X)

Plain Water Use Only to Right for One Manifold Conduit 3/8" ID Tubing Plain from Conduit (7X) Water Line Use Only for Two Conduit Carb Water Countertop Line

To Conduit

No. Part Number Description Qty. 1 00854998 Ell 1/2 x 3/8 Barb SS 2 2 00861304 Splicer 3/8 x 3/8 Barb 6 3 00861306 Splicer 1/2 x 1/2 Barb 6 4 5011751 Fitting 3/8" Y Barb 1 5 5018595 Splicer Elbow SS 1/2 x 1/2 2 6 5030996 Elbow 1/4 x 3/8 Barb SS 8 7 5030997 Elbow 1/4 x 1/2 Barb SS 4 8 5030998 U-bend 1/2 x 1/2 WI - 1/2 Stem 3

WATER AND SYRUP LINES This kit facilitates connecting the unit to a 12-16 line conduit, with one or two carbonated water recirculating systems, and one or two plain water supply lines, and maximum 8 syrup product lines. The unit is shipped with connecting lines terminating under the unit. It will be necessary to make a 90° turn

Part Number STH12 9/10 23 down through the counter top, to connect to the conduit. It will also be necessary to fully insulate this new added section before passing through the counter top, or before hooking to main conduit.

CARB WATER LINES • Unit has two carb water lines, one for each flex manifold. • Use 2 @ 1/2" x 1/2" elbow and 6-12" of 1/2" conduit tubing to make connection bend from unit down through hole in counter top, to mate with conduit. • Conduit with only two circulating carb water lines. • Use two @ 1/2" barb U-bend adapters (invert one) to connect the two carb circulating lines from conduit to the two carb water lines from the unit. Use short 1/2" conduit line to connect the two U-bends as shown (item #8). • Conduit with four, two sets of recirculating carb water lines. • Use two @ 1/2" barb U-bend adapters, to connect each set of circulating conduit lines to each carb water line from unit as shown (8).

PLAIN WATER LINES • Unit has two plain water lines, one for each flex manifold. • Use two @ 3/8" x 1/2" elbows and 6-12" of 1/2" conduit tubing to make connection bend from unit down through hole in counter top, to mate with conduit. • Conduit with only one plain water line. • Use one @ 1/2" U-bend adapter, to connect the two plain water lines to one plain water line from conduit (item #3). • Conduit has two plain water lines. • Use two @ 1/2" straight adapters to connect each plain water line from unit to each plain water line from conduit as shown (3).

24 Part Number STH12 9/10 SYRUP LINES • Unit has eight syrup lines. • Use seven @ 1/4 x 3/8" and one @ 1/4 x 1/2" elbows and proper size conduit tubing to make connection bend from unit down through hole in counter top, to mate with conduit. • FULLY INSULATE (no air gaps) and finish with tape wrap, all these connections from unit, through 90° bend connection and down close to straight conduit connection. Locate unit properly on counter, and secure to counter. Finish connections to conduit with 3/8" x 3/8" and 1/2" x 1/2" straight barb connectors, and U-bend adapters, as needed. • FULLY INSULATE and finish with tape wrap all these connections to the conduit.

Refrigeration Units • Refrigeration units require stand or 6" (15.2 cm) legs. Refrigeration unit cannot be placed directly on floor. • Conduit can be run through floor or ceiling chase. • Syrup supply can be located on stand or adjacent to refrigeration unit.

CLEARANCES Control Side (Right) 18" (45.7 cm) Tower Connection Side (Left) 12" (30.5 cm) Back Side 6" (15.2 cm) Ceiling 18" (45.7 cm)

Part Number STH12 9/10 25 REMOTE CONDENSER LINESET REQUIREMENTS Important If you have a MAC Multi-Pass condenser please add three (3) pounds additional charge.

Important If you exceed the 100ft line set length add .72oz/ft of line set run (one way) for every foot over 100ft, to the UNIT charge

1. Both the discharge and liquid remote condensing lines must be kept to a minimum distance for maximum performance. All Multiplex systems are capacity rated to 100 ft (30.5 m) tubing distance between the compressor and condenser. If you have another brand condenser, please add additional charge for the condenser (example: up to three (3) pounds for a MAC condenser). 2. Any vertical rise 25 ft (7.62 m) or greater must have a manufactured or installed trap (bend), in the discharge refrigeration line from the compressor to the remote condenser. A trap is necessary for every additional 25 ft (7.62 m) vertical rise. When excessive vertical rise exists, this trap allows oil to reach the condenser and return to the compressor.

26 Part Number STH12 9/10 3. The easiest method to create a trap is to bend the tubing (smoothly, no kinks) into the trap form.

Discharge Line Condenser Trap

To the Condenser 3" (7.6 cm) x 6" (15.2 cm) Maximum Trap Area Discharge Line Trap Every 25 Vertical ft. (7.62 m)

Compressor

3 ft (.9 m) (minimum) of Discharge Line Trap at the Compressor

4. The trap(s) must be of minimum height of 3" (7.6 cm) and a width of 6" (15.2 cm) to minimize oil accumulation. The traps can also be bent out of the refrigeration tubing. Carefully bend the tubing down 12", and then sweep the tubing back up. 5. It is critical that the remote condensing line size specifications for the specific model be maintained. The specifications are 1/2" discharge and 3/8" liquid lines.

Part Number STH12 9/10 27 Safe Installation Dos and Don’ts ! Warning Read the following warnings before beginning an installation. Failure to do so may result in possible death or serious injury. • Adhere to all National and Local Plumbing and Electrical Safety Codes. • Turn OFF incoming electrical service switches when servicing, installing, or repairing equipment.

• DO NOT throw or drop a CO2 cylinder. Secure the cylinder(s) in an upright position with a chain.

• DO NOT store CO2 cylinders in temperature above 125°F (51.7°C) near furnaces, radiator or sources of heat.

! Warning DO NOT connect the CO2 cylinder(s) directly to the product container. Doing so will result in an explosion causing possible death or injury. It is best to connect the CO2 cylinder(s) to a regulator(s).

! Warning Carbon Dioxide (CO2) displaces oxygen. Exposure to a high concentration of CO2 gas causes tremors, which are followed rapidly by loss of consciousness and suffocation. If a CO2 gas leak is suspected, particularly in a small area, immediately ventilate the area before repairing the leak. CO2 lines and pumps must not be installed in an enclosed space. An enclosed space can be a cooler or small room or closet. This may include convenience stores with glass door self serve coolers. If you suspect CO2 may build up in an area, venting of the BIB pumps and/or CO2 monitors must be utilized.

28 Part Number STH12 9/10 • DO check that all flare fittings are tight. This check must be performed with a wrench to ensure a quality seal. • DO inspect pressure on regulators before starting up equipment. • DO protect eyes when working around refrigerants. • DO use caution when handling metal surface edges of all equipment.

• DO handle CO2 cylinders and gauges with care. Secure cylinders properly against abrasion.

• DO store CO2 cylinder(s) in well ventilated areas. • DO NOT exhaust CO2 gas (example: syrup pump) into an enclosed area, including all types of walk-in coolers, cellars, and closets.

• DO NOT release CO2 gas from old cylinder. • DO NOT touch refrigeration lines inside units; some may exceed temperatures of 200°F (93.3°C). NOTE: All utility connections and fixtures must be sized, installed, and maintained in accordance with Federal, State, and Local codes.

Part Number STH12 9/10 29 Location Requirements

SODA REFRIGERATION UNIT “QUICK-PICK” SELECTION CHART Maximum Maximum Maximum Maximum Maximum Model 50M Model Model 44M Model 44M Model Model 44M Model Model 50M Model 250 ft / 80 m / 80 ft 250 m / 80 ft 250 250 ft / 80 m / 80 ft 250 350 ft m / 107 ft 350 350 ft m / 107 ft 350 Conduit Length Conduit Length Conduit Conduit Length Conduit Conduit Length Conduit Conduit Length Conduit

Maximum Maximum Maximum Maximum Maximum Model 50M Model 44M Model 44M Model 44M Model 50M 250 ft / 80 m 80 / ft 250 m 80 / ft 250 250 ft / 80 m 80 / ft 250 350 ft / 107 m / 107 ft 350 350 ft / 107 m / 107 ft 350 Conduit Length Length Conduit Conduit Length Length Conduit Length Conduit Conduit Length Length Conduit Conduit Length Length Conduit

Maximum Maximum Maximum Maximum Maximum Maximum Maximum Maximum Maximum Model 11M Model 11M Model 50M Model Model 44M Model Model 44M Model 100 ft / 30 m ft 100 / 30 m ft 100 250 ft / 80 m ft 250 250 ft / 80 m ft 250 350 ft / m / 107 ft 350 Conduit Length Length Conduit Conduit Length Length Conduit Length Conduit Conduit Length Length Conduit Conduit Length Length Conduit

Number of Dispensing Stations Maximum Maximum Maximum Maximum Maximum 40 ft / 12 m 40 ft Model 11M Model 44M Model 44M Model 50M Model 2803 100 ft / 30 m 30 / ft 100 250 ft / 80 m 80 / ft 250 250 ft / 80 m 80 / ft 250 350 ft / 107 m 350 ft Conduit Length Length Conduit Length Conduit Conduit Length Length Conduit Conduit Length Length Conduit Conduit Length Length Conduit (7,500 gal/yr) gal/yr) (7,500 (2,000 gal/yr) gal/yr) (2,000 (11,500 gal/yr) gal/yr) (11,500 (15,000 gal/yr) gal/yr) (15,000 560 drinks/day 560 drinks/day 980 drinks/day 280 drinks/day 280 drinks/day of syrup/day or or syrup/day of or syrup/day of of syrup/day or or syrup/day of of syrup/day or or syrup/day of of syrup/day or syrup/day of (4,000 gal/year) gal/year) (4,000 Up to 6 gal / 3 L 3 L / gal 6 to Up 1400 drinks/day drinks/day 1400 2000 drinks/day drinks/day 2000 (24°C) conditions, 16 ounce (470 ml) drinks, and average business cycles. Other factors such as factors Other cycles. business ml) and average 16 ounce (470 drinks, conditions, (24°C) larger the next may require conditions or high ambient large drinks, peak periods, dinner or lunch Systems Beverage or Manitowoc Distributor Authorized Company Manitowoc your Contact size unit. information. more for (MBS) Business Level* 1 2 3 4 1 2 Level* Business Up to 12 45 L Up to 12 gal / 79 L Up to 21 gal / Up to 32 gal / 121 L L gal / 121 Up to 32 Up to 42 gal / 159 L gal / 159 Up to 42 * for 75°F selections are Above unit. refrigeration proper the when selecting must Care be taken

30 Part Number STH12 9/10 Select a location for the refrigeration unit that meets the requirements of the building plans, local codes, and personnel. The unit must be positioned for free airflow as well as for future service. The following minimum requirements must be met: • 100 GPH (379 LTR/hr) potable water supply Models 2803/11/38; 200 GPH (757 LTR/hr) potable water supply Models 44/50

• Beverage quality CO2 gas (bulk or bottled supply) with a minimum 3/8" (.96 cm) line • One Bag-In-Box (BIB) container of each post mix syrup flavor. NOTE: Refer to nameplate on side of refrigeration unit for voltage and amperage specifications. Make all electrical connections at the junction box located at the top rear of unit. Optional equipment may require additional power supplies. NOTE: Potable water connections to the equipment must comply with local plumbing code requirements, particularly the back-flow prevention requirements.

PLUMBING REQUIREMENTS – GENERAL Incoming water supply must be provided before installation of the refrigeration unit and must comply with local plumbing requirements. 1. A minimum 1" (2.54 cm) water supply line with a manual shut-off valve must be plumbed at least 6 ft (183 cm) from the unit. The incoming water supply pressure must not exceed 70 psi static (4.8 bar) and be no less than 40 psi (2.8 bar) dynamic. If supply water pressure is greater than 70 psi (5 bar), a water regulator will be required. 2. Locate the drain hose, bracket, and two screws provided in the installation kit. Attach the drain hose to the water bath overflow tube located on the bottom of the refrigeration unit.

Part Number STH12 9/10 31 3. Connect the water manifold supply line, located on the bulkhead panel in the motor compartment to the main water supply. The main water supply shut-off valve must remain in the OFF position. If a water filter is to be installed, connect the line to the outlet fitting of the filter. Plumb according to applicable plumbing codes.

Bracket

Bottom of Unit

Screw

Drain Hose

Drain Hose Connection 4. When a water cooled condenser is installed, a copper supply line (not supplied with unit) must be plumbed to the 3/8" (.965 cm) male flare fitting installed in the water shut-off assembly. The shut-off must be placed in the OFF position. A copper drain line (not supplied) is to be connected to the outlet fitting of the water cooled condenser and routed to the floor drain.

32 Part Number STH12 9/10 WATER SUPPLY 1. Use the built in fill valve that is already plumbed into the unit. 2. An appropriate floor drain is required within 6 ft (2 m) of the unit. 3. Potable water connections to the equipment must comply with the basic plumbing code of the Building Officials and Code Administrators International, Inc. (BOCA) and the Food Service Sanitation Manual of the Food and Drug Administration. Verify local plumbing code requirements.

Part Number STH12 9/10 33 Electrical

GENERAL

! Warning All wiring must conform to local, state and national codes.

MINIMUM CIRCUIT AMPACITY The minimum circuit ampacity is used to help select the wire size of the electrical supply. (Minimum circuit ampacity is not the unit’s running amp load.) The wire size (or gauge) is also dependent upon location, materials used, length of run, etc., so it must be determined by a qualified electrician.

ELECTRICAL REQUIREMENTS Refer to unit’s Model/Serial Plate for voltage/amperage specifications.

34 Part Number STH12 9/10 SPECIFICATIONS 1 hp 2.2 hp 1/3 hp 1/2 hp 2.2 hp 1.9 kW 2.0 kW .46 kW .97 kW 2.0 kW 30A 25A 30A 20A 25A 16A 30A 16A 20A 15A Breaker Compressor 9.0 11.6 11.6 20.6 20.6 25.2 20.3 21.5 10.7 25.2 Minimum Minimum Circuit Amps 230/50/1 120/60/1 230/50/1 120/60/1 230/50/1 230/400/50/3 230/400/50/3 208-230/60/1 50M 120* /208-230/60/3 44M, 11M & Model Volt/Cycle/Phase 42M & 42M & SC180 SC340 2803 & SC1000 SC2000 208-230/60/3 * * TS does not. the components, 120V have numbers SS part 50M with model the Only

Part Number STH12 9/10 35 GROUNDING INSTRUCTIONS

! Warning The unit must be grounded in accordance with national and local electrical codes.

This appliance must be grounded. In the event of malfunction or breakdown, grounding provides a path of least resistance for electric current to reduce the risk of electric shock. NOTE: The refrigeration units are not equipped with a cord.

! Warning Improper connection of the equipment-grounding conductor can result in a risk of electric shock. The conductor with insulation having an outer surface that is green with or without yellow stripes is the equipment grounding conductor. If repair or replacement of the cord or plug is necessary, do not connect the equipment-grounding conductor to a live terminal. Check with a qualified electrician or serviceman if the grounding instructions are not completely understood, or if in doubt as to whether the appliance is properly grounded. Do not modify the plug provided with the appliance — if it will not fit the outlet, have a proper outlet installed by a qualified electrician.

36 Part Number STH12 9/10 ! Warning When using electric appliances, basic precautions must always be followed, including the following: a. Read all the instructions before using the appliance. b. To reduce the risk of injury, close supervision is necessary when an appliance is used near children. c. Do not contact moving parts. d. Only use attachments recommended or sold by the manufacturer. e. Do not use outdoors. f. For a cord-connected appliance, the following shall be included: • Do not unplug by pulling on cord. To unplug, grasp the plug, not the cord. • Unplug from outlet when not in use and before servicing or cleaning. • Do not operate any appliance with a damaged cord or plug, or after the appliance malfunctions or is dropped or damaged in any manner. Contact the nearest authorized service facility for examination, repair, or electrical or mechanical adjustment. g. For a permanently connected appliance — Turn the power switch to the off position when the appliance is not in use and before servicing or cleaning. h. For an appliance with a replaceable lamp — Always unplug before replacing the lamp. Replace the bulb with the same type. i. For a grounded appliance — Connect to a properly grounded outlet only. See Grounding Instructions.

Part Number STH12 9/10 37 Plumbing/Water Supply

PLUMBING POTABLE WATER Required Drain Water Model Water Connections Supply Pressure 2803 & 40 – 70 psig 3/4" ID 3/8" ID SC180 (2.8 – 4.9 bar) within 6 ft (2 m) EVA Line 11M & 40 – 70 psig 3/4" ID 3/8" ID SC340 (2.8 – 4.9 bar) within 6 ft (2 m) EVA Line 44M, 40 – 70 psig 3/4" ID 1/2" ID 42M & (2.8 – 4.9 bar) within 6 ft (2 m) EVA Line SC1000 50M 40 – 70 psig 3/4" ID 1/2" ID (2.8 – 4.9 bar) within 6 ft (2 m) EVA Line SC2000 40 – 70 psig 3/4" ID 1/2" ID (2.8 – 4.9 bar) within 6 ft (2 m) EVA Line A 1" (2.54 cm) ID copper inlet water line equipped with a 3/4" (1.905 cm) FPT adapter with shut-off must be supplied by plumber at rear of equipment. Appropriate floor drains must be provided within 6 ft (183 cm) of each unit installed. NOTE: The carbonator in this unit is provided with a dual check valve type back-flow preventer, which conforms to ASSE 1032. The Model 50M & 44M vented backflow preventer conforms to ASSE 1022. Potable water connections to the equipment must comply with the basic plumbing code of the Building Officials and Code Administrators International, Inc. (BOCA) and the Food Service Sanitation Manual of the Food and Drug Administration. Verify local plumbing code requirements.

38 Part Number STH12 9/10 Preparing Ice Bank – Non-ERC

BUILDING AN ICE BANK 1. At this time, fill the unit water bath tank to the top, or within 1/2" (1.3 cm) of the top minimum, of the overflow tube. Use a garden hose or another water supply to do this. NOTE: A manual fill valve is incorporated into the water circuit to the carbonator tank. This valve can be used to manually add water lost for any reason. Do not leave this valve ON constantly, only use it for filling and topping off. The water bath must be drained, flushed, and refilled every six months. 2. Turn ON the switch labeled “Refrigeration”. Allow unit to run for about 15 minutes before proceeding to step 3. 3. Turn ON the switch labeled “Agitator”. NOTE: Turn this switch OFF to perform any operations in the water bath area. With water bath water temperature of 65°F (18°C), ice will begin to form on the evaporator coils in approximately 2 hours. The unit will build a full ice bank in approximately 4 to 6 hours (depending on ambient water temperature).

Water Bath Tank Overflow Tube

Tab Drain Tube Clamp 4. Before turning on the carbonator or circulator switch, verify that the pump box assembly has been mounted and connected to the unit and the appropriate syrup and water has been supplied.

Part Number STH12 9/10 39 5. Turn on the main water supply to the booster assembly. Verify the booster is plugged in and that the accumulator tank valve is open. (If the system has an optional “Out-of-Syrup” device, verify that it is unplugged.) 6. Verify the pump is running. Place the valve on the right side of the pump box in the purge position until all air bubbles have passed through the line. Turn the valve back to “dispense”. Plug the Out-of-Syrup device power cord into an appropriate wall outlet at this time (if supplied). NOTE: Verify that the pump box holding tank is full before proceeding. 7. Turn on the circulator and carbonator switches. The carbonator must run for approximately 1 to 3 minutes and shut off. The circulator must run continuously. Verify that water is returning to the water bath through the return bulk head fitting.

Important Wait until a thin layer of ice has begun to form on the evaporator before proceeding any further.

8. Go to the tower(s) and brix the valves. Using a syrup separator and volume cup, adjust the flow rate of the carbonated water to two fluid ounces per second. Then, using the separator and a brix cup, adjust the syrup flow rate for a ratio of carbonated water to syrup.

40 Part Number STH12 9/10 Preparing Ice Bank with ERC

BUILDING AN ICE BANK 1. At this time, fill the unit water bath tank to the top, or within 1/2" (1.3 cm) of the top minimum, of the overflow tube. Use a garden hose or another water supply to do this. NOTE: A manual fill valve is incorporated into the water circuit to the carbonator tank. This valve can be used to manually add water lost for any reason. Do not leave this valve ON constantly, only use it for filling and topping off. The water bath must be drained, flushed, and refilled every six months. 2. Main power to unit must be on. Power delay of 30 seconds occurs when power applied. “Pd30” 3. Press COMP/AGIT switch on keypad display. 4. Agitator will come on immediately and compressor delay will start. “Cd99” will count from 180 to 0. NOTE: Turn this switch OFF to perform any operations in the water bath area. With water bath water temperature of 65°F (18°C), ice will begin to form on the evaporator coils in approximately 2 hours. The unit will build a full ice bank in approximately 4 to 6 hours (depending on ambient water temperature).

Water Bath Tank Overflow Tube

Tab Drain Tube Clamp

Part Number STH12 9/10 41 5. Turn on the main water supply to the booster assembly. Verify the booster is plugged in and that the accumulator tank valve is open. (If the system has an optional “Out-of-Syrup” device, verify that it is unplugged.) 6. Verify the pump is running. Place the valve on the right side of the pump box in the purge position until all air bubbles have passed through the line. Turn the valve back to “dispense”. Plug the Out-of-Syrup device power cord into an appropriate wall outlet at this time (if supplied). NOTE: Verify that the pump box holding tank is full before proceeding. 7. Turn on the circulator and carbonator. The carbonator must run for approximately 1 to 3 minutes and shut off. The circulator must run continuously. Verify that water is returning to the water bath through the return bulk head fitting.

Important Wait until a thin layer of ice has begun to form on the evaporator before proceeding any further.

42 Part Number STH12 9/10 Component Identification

Typical System

Conduit Air Conduit (In Wall) Compressor CO2 Panel

Multiplex Refrigeration Unit Water Booster

BIB Pumps

Water Filters CO2 Tank BIB Rack Bag-In-Box 6 Valve 8 Valve (BIB) Soda Soda Syrup Tower Tower

Part Number STH12 9/10 43 Connections

MODEL 2803 CONNECTIONS John Guest Fittings Right Hand Opening for Conduit Supply Lines

1/4" Plastic CO2 Line from Carbonator

Control Switches

Drain Hose

44 Part Number STH12 9/10 MODEL 11M CONNECTIONS Opening for Conduit Supply John Guest Fittings Lines

Drain Hose Control Switches

Part Number STH12 9/10 45 MODEL 42, 44, & 50M CONNECTIONS John Guest Fittings

Opening for Conduit Supply Lines

Drain Hose Control Switches ERC Controls (Non-ERC)

46 Part Number STH12 9/10 ERC CONTROL BOARD OUTPUT CONNENCTIONS

CRAGITATIORCARB A CARB B CIRC A CIRC B

L/N

EARTH

PLUG THIS PIN

Part Number STH12 9/10 47 ERC CONTROL BOARD INPUT CONNENCTIONS HIGH PROBE PROBE LOW GND GND HIGH PROBE PROBE LOW HIGH PROBE PROBE LOW GND LEVEL PROBE CIRC A TEMP CIRC A CIRC B TEMP WATER BATH BATH WATER TEMP DISCHARGE TEMP DISCHARGE SUCTION TEMP CO2 TS TD TW TB TA WL ICE CA A B CA COM +5V DC OUTPUT 12 11 10 9 8 7 6 5 4 3 2 1 HPCO WATER COM +5V DC OUTPUT HPCO SWITCH

48 Part Number STH12 9/10 Maintenance

Maintenance Schedule This section provides a list of periodic maintenance tasks and the scheduled frequency required to ensure the proper operation of your Multiplex dispensing equipment. To ensure quality beverages, prevent downtime, and reduce costs, these tasks must be performed as indicated.

PERIODIC MAINTENANCE FOR SOFT DRINK EQUIPMENT (LISTED BY MAJOR COMPONENTS) Dispensing stations Daily (365 times per year) • Take temperature of finished drinks. Pour off the first and take the temperature of the second drink. The proper temperature of drinks must be 38°F (4°C) or less. • Remove nozzles and diffusers from each dispensing valve. Clean with soap and warm water (not hot). Rinse with carbonated water and reinstall. • Flush all dispenser drains. Pour hot water down drains at closing. Beverage conduits Every 4 months (3 times per year) • Inspect beverage conduits for damage. Re- insulate and seal any uninsulated areas. • Inspect floor chases and seal any open chase ends. Air compressor Monthly (12 times per year) • Drain condensate water from air compressor tank. Every 4 months (3 times per year) • Inspect air compressor filter and replace if clogged. Air filter must be replaced every 6 months.

Part Number STH12 9/10 49 • Inspect air compressor to verify cut-in at 70 psi (4.8 bar) and cut-out at 90 psi (6.3 bar). Adjust pressure switch if necessary. • Inspect system for air leaks and repair as required. Refrigeration unit Every 4 months (3 times per year) • Clean the refrigeration unit air-cooled condenser using a vacuum cleaner. If equipped with watercooled condenser, verify the water discharge temperature is at 105°F (41°C). Adjust water modulating valve if necessary. • Inspect water bath to verify water level is at the top of stand pipe. If below, add water and repair water makeup device. If excessive amount of water is flowing over stand pipe, locate leak within bath and repair. • Inspect ice bank within the water bath to verify proper size ice bank and clarity. Look for uniform, 2" to 4" thick ice bank. • Drain, clean, and refill water bath. • Inspect agitator motor and ensure proper operation. • Inspect the circulating motor/pump assembly. Clean strainer and oil motor. • Inspect the carbonating motor/pump assembly. Clean strainer and oil motor. • Inspect entire system for leaks and repair as required. Water filters Every 4 months (3 times per year) • Verify that incoming water pressure is not less than 40 psi (2.8 bar) or greater than 60 psi (4.1 bar). If equipped with a water regulator, verify proper setting of 55 psi (3.8 bar). Adjust if necessary. • If pressure is low, inspect water filter cartridges to ensure they are able to supply adequate water pressure under normal system flow. Replace if unable to provide minimum 20 psi (1.4 bar) under load.

50 Part Number STH12 9/10 Syrup supply Daily (365 times per year) • Clean general area of syrup hookup with soap and warm water. Rinse off all soap. Every 4 months (3 times per year) • Inspect syrup lines for proper flavor identification labels. Replace labels if necessary. • Disconnect syrup containers. Clean connector with soap and warm water. Rinse with plain water and reconnect to syrup containers.

CO2 gas supply Every 4 months (3 times per year)

• Inspect pressure setting at CO2 high pressure regulator. Verify proper 90 psi (6.3 bar) pressure setting. Adjust if necessary. • Inspect pressure setting at syrup pressure regulators. Verify propter pressure setting. Adjust if necessary.

• Inspect system for CO2 leaks, repair as required. PERIODIC MAINTENANCE FOR SOFT DRINK EQUIPMENT (LISTED BY SCHEDULED FREQUENCY) Daily (365 times per year) • Take temperature of finished drinks. Pour off the first and take the temperature of the second drink. The proper temperature of drinks must be 38°F (4°C) or less. • Remove nozzles and diffusers from each dispensing valve. Clean with soap and warm water (not hot). Rinse with carbonated water and reinstall. • Flush all dispenser drains. Pour hot water down drains at closing. • Clean general area of syrup hookup with soap and warm water. Rinse off all soap. Every 4 months (3 times per year) • Using Brix cup and syrup separator, check for proper carbonated water flows (standard flow: 5 oz. in 4 seconds, fast flow: 10 oz. in 4 seconds)

Part Number STH12 9/10 51 and syrup to water ratios at each dispensing station. Adjust as required. • Inspect beverage conduits for damage. Re- insulate and seal any uninsulated areas. • Inspect floor chases and seal any open chase ends. • Inspect air compressor filter and replace if clogged. Air filter must be replaced every 6 months. • Inspect air compressor to verify cut-in at 70 psi (4.8 bar) and cut-out at 90 psi (6.3 bar). Adjust pressure switch if necessary. • Inspect system for air leaks and repair as required. • Clean the refrigeration unit air-cooled condenser using a vacuum cleaner. If equipped with watercooled condenser, verify the water discharge temperature is at 105°F (41°C). Adjust water modulating valve if necessary. • Inspect water bath to verify water level is at the top of stand pipe. If below, add water and repair water makeup device. If excessive amount of water is flowing over stand pipe, locate leak within bath and repair. • Inspect ice bank within the water bath to verify proper size ice bank and clarity. Look for uniform, 2" to 4" thick ice bank. • Drain, clean, and refill water bath. • Inspect agitator motor and ensure proper operation. • Inspect the circulating motor/pump assembly. Clean strainer and oil motor. • Inspect the carbonating motor/pump assembly. Clean strainer and oil motor. • Inspect entire system for leaks and repair as required. • Verify that incoming water pressure is not less than 40 psi (2.8 bar) or greater than 60 psi (4.1 bar). If equipped with a water regulator, verify proper setting of 55 psi (3.8 bar). Adjust if necessary.

52 Part Number STH12 9/10 • If pressure is low, inspect water filter cartridges to ensure they are able to supply adequate water pressure under normal system flow. Replace if unable to provide minimum 40 psi (1.4 bar) under load. • Inspect syrup lines for proper flavor identification labels. Replace labels if necessary. • Disconnect syrup containers. Clean connector with soap and warm water. Rinse with plain water and reconnect to syrup containers.

• Inspect system for CO2 leaks. Repair as required.

Part Number STH12 9/10 53 Cleaning and Sanitizing the Dispensing Valves and Product Lines

MAINTENANCE SCHEDULE Every day Dispensing Remove nozzles and diffusers and valves soak in mild detergent cleaning solution. Scrub parts with small bristle brush taking care to clean small crevices and O-ring grooves. Turn OFF power to dispensing valves. Scrub exterior surfaces, including bottom splash area and actuator lever, with cleaning solution. Reassemble diffusers and nozzles. Wipe dry exterior surfaces before turning ON power. Drip pan and Wash with mild detergent. Rinse with drain hose clean water. Quick Wash with mild detergent. Rinse with disconnects potable water. Weekly Outside, Wash with clean water and mild dispenser detergent. Wipe dry. cabinet Every 3 months Syrup Sanitize each syrup circuit. See circuits “Cleaning and Sanitizing Procedure”. Water bath Drain, melt ice and clean using detergent and brush; rinse with potable water. Do not use water over 140°F (60°C). Every 6 months Condenser Vacuum fins or use soft bristle brush (scrub brush). Air purifier Replace. filter (if equipped)

54 Part Number STH12 9/10 CLEANING EQUIPMENT AND SUPPLIES • Recommended cleaner: Any caustic-base (low sudsing, non-perfumed, easily rinsed) detergent solution which provides a minimum 2% sodium hydroxide. The solution must be prepared in accordance with the manufacturer’s instructions. Solution temperature must be between 90°F (32°C) and 110°F (43°C). Temperatures in excess of this can cause internal damage to the dispensing valve components. • Recommended sanitizer: Any sanitizer which provides a minimum of 120 parts per million (120 milligrams per liter) of available chlorine. Solution temperature must be between 90°F (32°C) and 110°F (43°C). Temperatures in excess of this can cause internal damage to the dispensing valve components. • Two five gallon (figals) syrup tanks and fittings, cleaned and sanitized (one for cleaner; one for sanitizer) • Containers for cleaner and sanitizer solutions • Clean, non-abrasive cloths • Buckets • Small Brush • Extra Nozzles • Extra Jumpers

Part Number STH12 9/10 55 CLEANING AND SANITIZING PROCEDURE NOTE: Cleaning and sanitizing is not required for potable water circuits. Potable water lines must remain connected and operational during the cleaning and sanitizing procedures for syrup circuits.

! Caution It is required that the Carbonated Water Lines remain connected and operational during cleaning and sanitizing of the syrup circuits. Sanitizing of the valve without the Carbonated Water side operation may leave bacteria in the nozzle, diffuser, and syrup tube.

Cleaning and dispensing valves 1. Disconnect each syrup container from its product line. Remove product from the lines by purging with clean warm tap water until syrup has been fully purged from the product lines and valves. 2. Clean all lines and fittings with cleaning solution and rinse with clean, room temperature water to remove all traces of residual product. Cleaning the product lines 1. To clean each valve product line, attach the valve product lines to the pressure tank containing the cleaning solution. Make sure each line is completely filled. Pressurize the lines by pulsing the valves. Pressurizing the product lines A. For 15 seconds turn dispensing valve ON, OFF, and then immediately ON again for 15 cycles. B. Allow the valve to remain flowing for 3 minutes. C. Repeat pulsing and flowing the valves again until all cleaning solution has been used.

56 Part Number STH12 9/10 ! Caution Do not allow cleaning and sanitizing solutions to remain in syrup systems longer than recommended contact time. Exceeding contact time will result in damage to valve components.

2. Flush the cleaning solution from the lines with clean water after a minimum of 3 minutes, by pulsing the valves as described above. 3. Remove the nozzles and the diffuser assemblies from the valves. Clean with cleaning solution. Agitate the assemblies to ensure assemblies are clean. Place them in a container of sanitizing solution for 15 minutes. Wearing sanitary gloves, remove the nozzles and diffuser assemblies from the sanitizing solution. Drain each until dry and reassemble to the valves. 4. Attach each valve product line to the pressure tank containing the sanitizing solution. Be sure all connections are cleaned and sanitized before connecting to each product line. 5. Pressurize and fill the lines with sanitizing solution. Make sure lines are completely filled, Allow the sanitizing solution to flow through each valve while activating the valves for 15 cycles. A. Leave valves OFF and allow to stand pressurized for 30 minutes. B. Activate the valves for two (2) cycles. Flush remaining sanitizer continuously through the valves. 6. Reconnect the syrup containers to their respective circuits. Prepare the unit for operation. 7. Draw drinks to refill lines and flush the sanitizing solution from the dispenser. Taste the beverage to verify that there is no off-taste (chlorine).

Part Number STH12 9/10 57 Sanitizing

BEVERAGE SYSTEM CLEANING

! Warning Flush sanitizing solution from syrup system. Residual sanitizing solution left in system could create a health hazard.

! Warning When using cleaning fluids or chemicals, rubber gloves and eye protection must be worn.

Sanitize the beverage system at initial start-up as well as regularly scheduled cleaning. The drain pan must be in place under soda valves, to carry away detergent and sanitizing agents that will be flushed through valves.

BAG-IN-BOX SYSTEM SANITATION The procedure below is for the sanitation of one syrup circuit at a time. Repeat to sanitize additional circuits. You will need the following items to clean and sanitize the Bag-in-Box (BIB) beverage system: • Three (3) clean buckets • Plastic brush or soft cloth • Mild detergent • Unscented bleach (5% Na CL O) or Commercial sanitizer • Bag-In-Box bag connector 1. Prepare the following in the buckets: • Bucket 1 — warm to hot tap water for rinsing. • Bucket 2 — mild detergent and warm to hot water.

58 Part Number STH12 9/10 • Bucket 3 — mix a solution of unscented bleach (5% Na CL O) or commercial sanitizer and warm to hot water. Mixture should supply 100 PPM available chlorine (1/4 oz. bleach to 1 gallon water).

2. Disconnect the “syrup-line side” of the BIB connector.

Bag side connector

3. Rinse connector with warm tap water.

Part Number STH12 9/10 59 4. Connect syrup connector to BIB connector and immerse both into Bucket 1. A “bag-side” connector can be created by cutting the connector from an empty disposable syrup bag. 5. Draw rinse water through system until clean water is dispensed. Most beverage valves allow the syrup side to be manually activated by depressing the syrup pallet. 6. Connect Bucket 2 to system. 7. Draw detergent solution through system until solution is dispensed. 8. Repeat steps 2-7 until all syrup circuits contain detergent solution. 9. Allow detergent solution to remain in the system for 5 minutes. 10. Connect Bucket 3 to system. 11. Draw sanitizing solution through system until solution is dispensed. 12. Repeat step 11 until all syrup circuits contain sanitizer solution. 13. Allow sanitizer solution to remain in system for 15 minutes. 14. Remove nozzles and diffusers from beverage valves. 15. Scrub nozzles, diffusers and all removable valve parts (except electrical parts) with a plastic brush or a soft cloth and the detergent solution. 16. Soak nozzles, diffusers and removable valve parts (except electrical parts) in sanitizer for 15 minutes. 17. Replace nozzles, diffusers and valve parts. 18. Connect Bucket 1 to system. 19. Draw rinse water through system until no presence of sanitizer is detected. 20. Attach syrup connectors to BIBs. 21. Draw syrup through system until only syrup is dispensed. 22. Discard first 2 drinks.

60 Part Number STH12 9/10 FIGAL BEVERAGE SYSTEM 1. Prepare the following in three clean Figal tanks: • Rinse tank - fill with room temperature tap water. • Detergent tank - mix approved beverage system cleaner with warm water as directed. • Sanitizing tank - mix a solution of unscented bleach (5% Na CL O) or commercial sanitizer and warm to hot water. Mixture should supply 100 PPM available chlorine (1/4 oz. bleach to 1 gallon water). 2. Disconnect all product and water lines from product tanks and remove carbonator. 3. Locate the Figal syrup tank for the circuit to be sanitized. Remove both quick disconnects from the Figal syrup tank. Rinse quick disconnects in tap water. 4. Connect rinse tank to the syrup line. Draw clean rinse water through the valve until syrup is flushed from the system. 5. Connect detergent tank to the syrup line and draw detergent through the valve for two minutes. Then, allow remaining detergent to stay in the system for five minutes. 6. Connect rinse tank to the syrup line. Draw clean rinse water through the valve until detergent is flushed from the system. 7. Remove valve nozzle and diffuser as shown in Daily Cleaning instructions. Using a plastic brush or a soft cloth and warm water, scrub the nozzle, diffuser, bottom of the dispensing valve and cup lever, if applicable. 8. Place removable valve parts (EXCEPT solenoids) in sanitizing solution for 15 minutes. 9. Replace valve diffuser and nozzle on the beverage valve. 10. Connect sanitizer tank to the syrup line and draw sanitizer through the valve for two minutes. Allow sanitizer to remain in the system for a minimum of 15 minutes.

Part Number STH12 9/10 61 11. Reconnect syrup and carbonated water lines. 12. Draw syrup through the lines to rinse the system. Discard drinks until at least two cups of satisfactory tasting beverage are dispensed through the valve.

Shipping, Storage and Relocation

! Caution Before shipping, storing, or relocating this unit, syrup systems must be sanitized. After sanitizing, all liquids (sanitizing solution and water) must be purged from the unit. A freezing environment causes residual sanitizing solution or water remaining inside the unit to freeze, resulting in damage to internal components.

62 Part Number STH12 9/10 Operation

How the Multiplex Works Model 2803 — a 1/3 HP refrigeration unit that will provide pre-mix carbonated beverages and chilled carbonated water for up to 6 gal (3 L) of syrup/day or 280 drinks/day (2,000 gal/yr) with a 40 ft (12 m) maximum conduit length. This is a remote refrigeration unit that derives its peak draw capacity from the reserve ice bank produced from a capillary tube refrigeration system. This system is controlled to cycle ON and OFF by the operation of the ice bank control. The sensing bulb that controls the ice bank is located on an adjustable bracket in the water bath. Model 11M — a 1/2 HP refrigeration unit that will provide premix carbonated beverages and chilled carbonated water for up to 12 gal (45 L) of syrup/day or 560 drinks/day (4,000 gal/year) with a 100 ft (30 m) maximum conduit length. This is a remote refrigeration unit that derives its peak draw capacity from the reserve ice bank produced from a capillary tube refrigeration system. This system is controlled to cycle ON and OFF by the operation of the ice bank control. The sensing bulb that controls the ice bank is located on an adjustable bracket in the water bath. Model 42M — a 1 HP refrigeration unit that will provide pre-mix carbonated beverages and chilled carbonated water for up to 50 gal (190 L) of syrup/day or 3,060 drinks/day (18,200 gal/yr) with a 250 ft (80 m) maximum conduit length. This refrigeration unit is a remote refrigeration unit that derives its peak capacity from the reserve ice bank produced from a TXV system. This system is controlled to cycle ON and OFF by the operation of the ice control. The sensing probe that controls the ice bank, is located on an adjustable bracket in the water bath. Model 44M — a 1 HP refrigeration unit that will provide pre-mix carbonated beverages and chilled carbonated water for up to 50 gal (190 L) of syrup/day or 3,060 drinks/day (18,200 gal/yr) with a 250 ft (80 m) maximum conduit length. This refrigeration unit is a remote refrigeration unit that derives its peak capacity from the reserve ice bank produced from a TXV system. This system is controlled to cycle ON and OFF by the operation of the ice control. The sensing probe that controls the ice bank, is located on an adjustable bracket in the water bath.

Part Number STH12 9/10 63 Model 50M — a 2.2 HP Pre-mix refrigeration unit that will provide pre-mix carbonated beverages and chilled carbonated water for up to 42 gal (159 L) of syrup/day or 2,000 drinks/day (15,000 gal/yr) with a 350 ft (107 m) maximum conduit length. This refrigeration unit is a remote refrigeration unit that derives its peak capacity from the reserve ice bank produced by the operation of the compressor. This system is controlled to cycle ON and OFF by the operation of the ice bank control. The sensing bulb that controls the ice bank is located on an adjustable bracket in the water bath.

Differences Between the TS & SS Units Multiplex soda and water chillers may have three different series numbers. Starting in 2007 some no longer begin with an “SS”; they now begin with a “TS”. Starting in 2008, units with ERC (Electronic Refrigeration Controls) end with an “E”. The following shows you how to tell the difference between the TS version and the SS.

• The TS uses common components from Manitowoc Ice makers to assist in product and parts availability.

64 Part Number STH12 9/10 • The TS compressor is mounted with bolts instead of studs.

• TS remote and water-cooled back panel connections are offset to protect fittings.

Part Number STH12 9/10 65 • TS air-cooled condenser comes standard with a filter.

WATER MANIFOLD TS

Two Stainless Steel log style manifolds • One regulated supply for carbonator pumps. • One unregulated supply for non-carb drinks and water bath fill.

Other Connections • Connections are made in the water bath compartment. • Separate plain water manifold eliminates need to plug off during installation.

66 Part Number STH12 9/10 ELECTRICAL TS • Electrical compartment has been moved up on the unit to eliminate water intrusion potential from the pump compartment. • All components are now 208/230V. This eliminates the need for a neutral wire.

• New unit has service connections in the electrical compartment. Allows more room to work and more reliable connection.

• Pump protection switch has been moved to the pump compartment to eliminate potential leak point in electrical compartment.

Part Number STH12 9/10 67 WATER BATH ACCESS SS • Has a round hole in the front and back panels with no edge trim to protect lines.

• End panel has two ovals in the rear of the panel with edge trim to help protect conduit lines.

WATER BATH ACCESS TS

• All panels have large oval access holes with interchangeable covers. • Front panel has 3 hole cover for water and CO2 line routing. • Back panel has solid cover. • End panel has one open cover and one solid cover. • Open cover provides wide ledge for conduit line protection.

68 Part Number STH12 9/10 SERVICE ACCESS SS

• Front panel was solid and did not allow easy access for service. • Switch panel was mounted flush to end panel.

SERVICE ACCESS TS

• Front panel is split to allow front access to the compressor compartment. • Switches are recessed and the edge has trim panel to protect fingers from sheet metal edges.

Part Number STH12 9/10 69 SERVICE ACCESS TS WITH ERC

LED Display

PGM SER

CIRC B

COMP/ AGIT CARB A CARB B CIRC A CIRC B

Program Service Switch Switch • Service Switch — (SER) switch, press to send ID on power line network. • Wink Function — LED flashes “Ion” to indicate wink function. Press program switch (PGM) to disable wink function.

70 Part Number STH12 9/10 Equipment Setup Procedure (Non-ERC) 1. Ensure that all valve nozzles are attached to the valves.

2. Observe pressure of CO2 high pressure tank of 500 psi (34 bar) or more, or bulk CO2 tank of 150 psi or more. Primary regulator set at 90 psi (6 bar) and the secondary regulator set at 35 psi (2.4 bar). 3. Observe the control panel to verify that all pressure gauges are set at correct operating pressures. 4. Check the syrup tanks to make sure a sufficient number of tanks are connected in series to satisfy business volume. 5. Clean syrup inlet and outlet quick disconnects at the same time tanks are replaced. Rinse disconnects in clean potable water.

Part Number STH12 9/10 71 Start-up (Non-ERC) 1. Fill the refrigeration unit water bath tank with water to within 1/2" (1.27 cm) of the top of the overflow tube. 2. Open the manual water shut-off valve to the water cooled condenser (if applicable). 3. Turn ON the rocker switch labeled “Refrigeration” to begin building an ice bank. 4. Turn ON the rocker switch labeled “Agitator”. NOTE: On TS units 3 & 4 are combined into 1 switch. 5. Ice will begin to form on the evaporator coils in approximately 2 hours. 6. The refrigeration unit will build an ice bank in approximately 4 to 6 hours.

7. If optional CO2/Water Control Panel has been installed on the refrigeration unit, refer to the installation instructions for operation and testing the circuits for leaks. 8. The carbonation circuits “A” and “B,” as well as the syrup circuits must be checked for leaks and possible cross circuits before turning ON the water supply to carbonator pumps. 9. Turn on main water supply. Set incoming regulator to 55 psi on the CO2 panel; 25 psi for the Model 11M root beer system’s internal regulator (must be lower than CO2 supply pressure). Once water is supplied to the unit, air needs to be purged from the carbonator tank. Do so by lifting press relief valve tab until water comes out of relief valve.

10. Turn on main CO2 supply. Set regulator initially to 90 – 100 psi. For the Model 11 Root Beer system, set regulator initially to 26 psi; it can be raised incrementally to 30 psi if there is excessive foaming.

11. Set bag-in-box syrup tank push pressure CO2 regulator to 65 – 70 psi. For the Model 11 Root Beer system, set push pressure CO2 regulator to 35 – 40 psi.

72 Part Number STH12 9/10 PLACING THE CARBONATION SYSTEM IN OPERATION 1. Open the CO2 gas supply valve at CO2 tanks or bulk tank. Adjust the CO2 pressure to 90 psi (6.2 bar). 2. Open relief valve on top of the carbonator tank for 4 seconds to bleed off air in tank. 3. Turn ON the water supply to unit. 4. Turn ON the switch labeled “Carbonator Pump”. Allow carbonator to run and cycle OFF. 5. Activate all valves until a smooth, continuous flow of carbonated water and non-carbonated water appear at the valves. 6. Turn ON switch labeled “Circulator”. 7. Allow at least 1 hour before proceeding to calibration instructions. You may complete the sanitizing instructions during this period.

Part Number STH12 9/10 73 Sequence of Operation (Non-ERC)

PRE-MIX REFRIGERATION UNIT Ice Bank Is Required 1. Check water bath for full ice bank. 2. The stabilized water bath operating temperature must be maintained at 33°F (0.6°C) to 35°F (1.7°C). The following is a sequence of operations for the Multiplex Pre-mix Beverage equipment. 1. Once a drink is dispensed, the following will occur: A. For a Syrup Tank System, the Pre-mix syrup is manually mixed at the store. Pre-mix beverage is then transferred to a holding tank for supply to the Multiplex system. B. For a Bag-In-Box System, pre-mix syrup is drawn from a Bag-In-Box by means of a gas driven syrup pump. 2. The carbonator pump (stainless) pulls the 5:1 pre-mix out of the 3 gallon holding tank and injects it into the pre-mix carbonator tank where the CO2 pressure is 35 psi (2.4 bar) on the tank. 3. The circulator pump runs continuously and circulates water bath water through the conduit to provide cooling for all drinks.

74 Part Number STH12 9/10 Conduit Air Conduit (In Wall) Compressor CO2 Panel

Multiplex Refrigeration Unit Water Booster

BIB Pumps

Water Filters CO2 Tank BIB Rack Bag-In-Box 6 Valve 8 Valve (BIB) Soda Soda Syrup Tower Tower

Multiplex Pre-mix Beverage System Operation and Layout

Part Number STH12 9/10 75 Start-up (with ERC)

PLACING EQUIPMENT IN OPERATION Before placing equipment in operation, verify that all requirements for roof mounted Remote Condenser Units (if applicable) have been satisfied. Refer to the instructions on installing the Remote Condenser. Verify proper supply power to unit. 1. Fill the refrigeration unit water bath tank with water to within 1/2" (1.27 cm) of the top of the overflow tube. 2. Open the manual water shut-off valve to the water cooled condenser (if applicable). Refer to “Electronic Control” for control programming sequence. 3. Press “Comp/Agit” to begin building an ice bank. 4. Ice will begin to form on the evaporator coils in approximately 2 hours. 5. The refrigeration unit will build an ice bank in approximately 4 to 6 hours.

6. If optional CO2/Water Control Panel has been installed on the refrigeration unit, refer to the installation instructions for operation and testing the circuits for leaks. 7. The carbonation circuits “A” and “B,” as well as the syrup circuits must be checked for leaks and possible cross circuits before turning ON the water supply to carbonator pumps. 8. Turn on main water supply. Set incoming regulator to 55 psi on the CO2/Water control panel. Once water is supplied to the unit, air needs to be purged from the carbonator tank. Do so by lifting press relief valve tab until water comes out of relief valve.

9. Set bag-in-box syrup tank push pressure CO2 regulator to 60 psi.

76 Part Number STH12 9/10 PLACING THE SYRUP SYSTEM IN OPERATION 1. Open the CO2 gas supply valve at CO2 tanks or bulk tank. Adjust the CO2 pressure to 90 psi (6.2 bar). 2. Open relief valve on top of the carbonator tank for 4 seconds to bleed off air in tank. 3. Verify the water supply to unit is on. 4. Press the switch labeled “Carb A” (and B if applicable). Allow carbonator to run and cycle OFF. 5. Press the switch labeled “CIRC A” (and “CIRC B” if applicable). 6. Activate all vales until a smooth, continuous flow or carbonated water and non-carbonated water appear at the valves. 7. Allow at least 1 hour before proceeding to calibration instructions. You may complete the sanitizing instructions during this period.

Part Number STH12 9/10 77 Sequence of Operation (with ERC)

ELECTRONIC CONTROL Prerequisites • Potable water must be connected to the carbonator pump circuit. • The ice bank water bath water must cover the evaporator. The compressor will not start unless the ice bank control probes are immersed in water.

•CO2 must be supplied. Initial Power-up The control has a 30-second delay when power is connected, or disconnected and reconnected. The display will show Pd30 - power delay and 30 seconds left in the countdown cycle. Normal Two Circuit Operation Pressing the COMP/AGIT button will start the water bath agitator immediately and initiate the 180 second compressor delay. The display will show Cd99 (compressor delay & 99 seconds) and will start to count down from 99 seconds after the first 81 seconds have elapsed. After 180 seconds the compressor and condenser fan motor energize and the COMP/AGIT LED flashes. Pressing the CARB A and CARB B buttons will power the carbonator tank liquid level control. The corresponding LED flashes to indicate the pump is running. Pressing the CIRC A & CIRC B buttons will immediately energize the circulating pumps and energize the LED constantly. The display will show the circulating temperature and show the A circuit. When two circuits are used the readout will alternate between A and B circuits every 5 seconds. The compressor and condenser fan will continue to run until ice contacts the ice bank control probe closest to the evaporator. When ice contacts the probe, the COMP/AGIT LED lights constantly and the compressor and condenser fan motor de-energize. As the ice bank melts, the ice bank control probe will lose contact with the ice; the LED will flash and the compressor and condenser fan motor will restart. This cycle will repeat as required depending on load.

78 Part Number STH12 9/10 Power Interruption During a power interruption the control will resume from the point of interruption when power is reapplied and the time delay expires. Any switches/components that were energized when power was interrupted will be energized when power is reapplied. Error Codes E1 = Low Water Supply Pressure

E2 = Low CO2 Pressure E3 = Low Water Level - Water Bath E4 = High Water Bath Temperature E5 = High Water Supply Pressure E6 = High Refrigeration Temperature E7 = High Ice Bank Size (Probe Sensor 2) E8 = Long Carb A Run Time E9 = Long Carb B Run Time NOTE: Shorted Transducer = "----" Open Transducer = "====" Error codes will display until corrected.

CIRC A

PGM SER CIRC B

COMP/ CARB CARB CIRC CIRC AGIT A B A B

Control Programming SER Switch • For when optional LON communication network is connected.

Part Number STH12 9/10 79 PGM Switch • Used to enter and exit programming modes. • Press PGM Switch F000 will display • Press and hold Carb A switch — Display will indicate Water Bath Temperature • Press and hold Circ A switch — Display will indicate Discharge Temperature • Press and hold Circ B switch — Display will indicate Suction Temperature • Press PGM Switch P000 will display • Press and hold Carb A switch — Display will indicate Water Pressure • Press and hold Carb B switch — Display will indicate CO2 Pressure Press and hold PGM switch for 3 seconds to save settings and exit program mode. Program Mode 1 To enter, press and hold switch for 3 seconds. • 0001 will display indicating Mode 1 • Wait 3 seconds — C000 will display • Press and hold Carb A switch — Display will indicate one of the following: • CA00 — Low and High Probes are open (carbonator motor is energized) • CA11 — Low and High Probes are closed (carbonator motor is de-energized) • CA01 — Low Probe closed (Motor will still be on)

80 Part Number STH12 9/10 • Press and hold Carb B switch — Display will indicate one of the following: • Cb00 — Low and High Probes are open (carbonator motor is energized) • Cb11 — Low and High Probes are closed (carbonator motor is de-energized) • Cb01 — Low Probe closed (Motor will still be on) • Press and hold COMP/AGIT switch — Display will indicate one of the following: • CL 0 — Water level low • CL 1 — Water level OK Program Mode 2 Add circulation pumps C & D. • Press PGM button for 3 seconds — Display shows 0001. • Press PGM button — Display shows 0002 program mode 2. • Wait 3 seconds — Display shows -002 = Factory default setting. • Pressing CIRC A button energizes/de-energizes pump A • Pressing CIRC B button energizes/de-energizes pump B • Program CIRC C — Press CARB A button – Display shows -102 = Carb A button energizes/de-energizes pump C • Program CIRC D — Press CARB B button - Display shows -012 = Carb B button energizes/de-energizes pump D Press and hold PGM switch for 3 seconds to save settings and exit program mode.

Part Number STH12 9/10 81 Program Mode 4 Temporarily cancel display of error codes. Cancelling the error codes allows circulating glycol temperatures to be displayed until the error can be corrected. • Press PGM button for 3 seconds — Display shows 0001. • Press PGM button three times — Display shows 0004 program mode 4. • Wait 3 seconds — Display shows -004 = All error codes will be displayed during run mode. • Press COMP/AGIT button once — Display shows ---4 = error codes will not be displayed during run mode. NOTE: Disconnecting and reconnecting main power will reset the control board to the factory setting -004 = Error codes will be displayed in the run mode.

Equipment Setup Procedure (with ERC) 1. Ensure that all valve nozzles are attached to the valves.

2. Observe pressure of CO2 high pressure tank of 500 psi (34 bar) or more, or bulk CO2 tank of 150 psi or more. Primary regulator set at 90 psi (6 bar) and the secondary regulator set at 35 psi (2.4 bar). 3. Observe the control panel to verify that all pressure gauges are set at correct operating pressures. 4. Check the syrup tanks or BIB to make sure a sufficient number of tanks are connected in series to satisfy business volume. 5. Clean syrup inlet and outlet quick disconnects at the same time tanks are replaced. Rinse disconnects in clean potable water.

82 Part Number STH12 9/10 Multiplex Electronic Refrigeration Control (ERC) Programming CIRCUIT OR LOAD OR LOAD CONTROL CONSTANT, CONSTANT, SWITCH TO SWITCH TO IF FLASHES CIRCUIT ON PRESS ANY ANY PRESS RESPECTIVE RESPECTIVE LED COMES ON LED COMES TURN ON LOAD TURN ON LOAD CONTROL SHOWS CIRC NORMAL RUN TEMP IN BEER MODE DISPLAY MODE DISPLAY WATER TEMP(S) TEMP(S) WATER OR WATER BATH BATH OR WATER E1 = LOW WATER PRESS E1 WATER = LOW E2 CO2 = LOW PRESS LEVEL BATH E3 WATER = LOW TEMP BATH WATER E4 = HIGH PRESS E5 WATER = HIGH TEMP REFRIGERATION HIGH = E6 E7 = LARGE ICE BANK RUN TIME CARB AE8 = LONG RUN TIME CARB BE9 = LONG “===” =OPEN =SHORT “___” NO PROGRAM MODE 3 MODE PROGRAM MODE 4 PROGRAM EXIT PROGRAM MODE ERROR ERROR CODE(S) YES MULTIPLE MULTIPLE OVERRIDES CORRECTED PGM MODE 4 MODE PGM ERROR CODE CODE ERROR DISPLAYS TILL DISPLAYS ERRORS CYCLE M OF 3 SECONDS. DISPLAY SHOWS NORMAL RUN MODE M 3 OF SECONDS. DISPLAY NO ENTER PROGRAM MODE PROGRAM MODE COMP/AGIT COMP/AGIT SWITCH ON SWITCH YES DELAY, IF DELAY, REQUIRES COMPRESSOR COMES ON AFTER CONTROL CIRCUIT CONTROL AND COUNTS SHOWS “Pd30” “Pd30” SHOWS DOWN “Pd00” TO TO “Cd00” TO POWER UP DELAY POWER UP DELAY “Cd99” AND COMPRESSOR DELAY SHOWS DELAY COUNTS DOWN COUNTS TO ENTER,TO PRESS AND HOLD PGM SWITCH FOR MINIMUM SHOWS OF 3 “0001” SECONDS. DISPLAY TO EXIT, PRESS AND HOLD PGM SWITCH FOR MINIMU EXIT, TO PROGRAM MODE 1 PROGRAM MODE 2 AGITATOR AGITATOR COMES ON CONSTANTLY SUPPLY POWER ON POWER SUPPLY

Part Number STH12 9/10 83 “FC00” ERRORS BAR “Fb00” SEQUENCE SHOWS “---4” “---4” SHOWS DISPLAY “-004” DISPLAY CODES WILL BE POWER ON/OFF ON/OFF POWER TO CENTIGRADE TO SWITCH, DISPLAY SWITCH, DISPLAY THREE SECONDS ONCE TO CHANGE ONCE TO ONCE TO CHANGE ONCE TO PRESS COMP/AGIT TO CHANGE UNITS PROGRAM MODE 4 INDICATING ERROR INDICATING COMP/AGIT SWITCH COMP/AGIT SWITCH WHEN “F000” PRESS PRESS “F000” WHEN WHEN “P000” PRESS PRESS PGM SWITCH SWITCH PGM PRESS DISPLAY “0004”, WAIT “0004”, WAIT DISPLAY PRESSURE UNITS TO TEMPERATURE UNITS TEMPERATURE THREE TIMES IN LESS DISABLED UNTIL NEXT TEMPORARILY DISABLE TEMPORARILY THAN THREE SECONDSTHAN THREE “-003” (BEER) NOTE: SET POINT = POINT SET TEMPERATURE TEMPERATURE PROGRAM MODE 3 (DEFAULT = “1273”) = “1273”) (DEFAULT ABOVE SET POINT) SET ABOVE COMPRESSOR ON COMPRESSOR OFF DISPLAY “0003”, WAIT “0003”, WAIT DISPLAY TO RAISETO SET POINT TO LOWER SETPOINT PRESS CIRC A SWITCH PRESS CIRC B SWITCH DIFFERENTIAL IS FIXED PROGRAM TEMPERATURE PROGRAM TEMPERATURE AT 2°F ABOVE SETAT POINT THREE SECONDS DISPLAY THREE SECONDS DISPLAY IN LESS THAN 3 SECONDS, CONTROL OF WATER BATH BATH WATER CONTROL OF PRESS PGM SWITCHTWICE (DIFFERENTIAL FIXED AT 2° (DIFFERENTIAL FIXED AT PRESS COMP/AGIT SWITCH XX=SET POINT TEMPERATURE TEMPERATURE POINT XX=SET ONCE, DISPLAY = “1XX3” WHEREONCE, DISPLAY TEMP “-112” “-102” PRESSURE TO CIRC MOTOR MOTOR CIRC TO TO CIRC MOTOR MOTOR CIRC TO PROGRAM2 MODE “P000” (PRESSURE) CIRCULATING PUMPS CIRCULATING PRESS PGM SWITCH ONCE SHOW SUCTION TEMP TO SHOW WATER BATH BATH SHOWTO WATER PRESS CARB A SWITCH LESS THAN 3 SECONDS SECONDS 3 THAN LESS “F0000” (TEMPERATURE) PRESS CARB A SWITCH PRESS CARB B SWITCH SHOW DISCHARGE TEMP SECONDS DISPLAY “-002” SECONDS DISPLAY PRESS CIRC A SWITCH TO PRESS CIRC B SWITCH TO CONVERT CARB A MOTOR CARB ACONVERT MOTOR CONVERT CARB B MOTOR CARB BCONVERT MOTOR TO SHOW WATER SUPPLY SUPPLY SHOWTO WATER TO SHOW CO2 PRESSURE SHOW CO2 TO PRESS CARB A SWITCH TO PRESS CARB B SWITCH TO DISPLAY “0002”, WAIT THREE “0002”, WAIT DISPLAY PRESS PGM SWITCH ONCE IN PROGRAM ONE OR TWO MORE MORE OR TWO ONE PROGRAM UNITS LARGE (E7) MOTOR OFF OFF MOTOR BANK PROBE “CC11” = NO ICE “CC11” TEMPERATURE, TEMPERATURE, WAIT 3 SECONDS WAIT PRESS COMP/AGIT CARB A MOTOR ON CARB A MOTOR COMPRESSOR OFF SENSOR IN WATER, SENSOR IN WATER, “CA00” = NO WATER PROGRAM MODE 1 REPEAT ABOVE FOR FOR ABOVE REPEAT “CA11” = LOW & HIGH “CA11” PRESSURE CHANGE TO SHOW LLC PROBE IN WATER, MOTOR ON MOTOR IN WATER, SWITCH TO SHOWSWITCH ICE TO READ CONDUCTIVITY, READ CONDUCTIVITY, “CA01” = LOW SENSOR PRESS PGM SWITCH ONCE ONCE SWITCH PGM PRESS PROBE “CL 1” = WATER PRESS CIRC A SWITCH = ICE ON LOW SENSOR “CC00” = ICE BANK TOO “CC00” = ICE BANK TOO CARB B SWITCH “CbXX” “C000” (CONDUCTIVITY) PRESS CARB A SWITCH DISPLAY SHOWS “C000”DISPLAY TO SHOW WATER LEVEL LEVEL WATER SHOW TO “CL 0” = LOW WATER (E3) “CL 0” = LOW WATER COMPRESSOR ON; “CC10”

Equipment Close Procedure — All Units 1. Clean the underside of the dispensing tower around the nozzle area with a clean damp towel. 2. Pour at least 60 oz (1.8 liters) of warm water down the drain openings.

84 Part Number STH12 9/10 MULTIPLEX ELECTRONIC REFRIGERATION CONTROL (ERC) PROGRAMMING CIRCUIT OR LOAD CONTROL CONSTANT, FLASHES IF CIRCUIT ON CIRCUIT SWITCH TO PRESS ANY RESPECTIVE LED COMES ON LOAD CONTROL TURN ON LOAD ERRORS DISPLAY “-004” DISPLAY PROGRAM MODE 4 THREE TIMES (3) IN THREE THREE (3) SECONDS PRESS PGM SWITCH DISPLAY “0004”, WAIT DISPLAY TEMPORARILY DISABLE TEMPORARILY LESS THAN 3 SECONDS LESS MODE MODE TEMP(S) OR CIRC WATER WATER BATH NORMAL RUN NORMAL TEMP IN BEER TEMP DISPLAY SHOWS DISPLAY NO (BEER) DISPLAY “-003” DISPLAY E1 = Low Water Suply Pressure E1 = Low Water E2 = Low Co2 Pressure Bath Level - Water E3 = Low Water Temperature Bath E4 = High Water Supply Pressure E5 = High Water Temperature E6 = High Refrigeration E7 = High Ice Bank Size (Probe Sensor 2) Time Run A E8 = Long Carb Time E9 = Long Carb B Run = "----" Transducer Shorted = "====" Transducer Open EXIT PROGRAM MODE EXIT (2) IN LESS THAN 3 (2) IN LESS PROGRAM MODE 3 WAIT THREE (3) SECONDS WAIT PROGRAM TEMPERATURE SECONDS, DISPLAY “0003”, SECONDS, DISPLAY CONTROL OF WATER BATH OF WATER CONTROL ERROR CODE(S) PRESS PGM SWITCH TWICE PRESS PGM SWITCH YES NO MULTIPLE OVERRIDES CORRECTED PGM MODE 4 ERROR CODE DISPLAYS TILL DISPLAYS ERRORS CYCLE ENTER PROGRAM MODE P R O G R A M O D E A R O G P YES COMP/AGIT SWITCH ON DELAY, IF DELAY, REQUIRES COMPRESSOR PROGRAM MODE 2 COMES ON AFTER COMES ON CONTROL CIRCUIT CONTROL IN LESS THAN 3 SECONDS IN LESS (3) SECONDS DISPLAY “-002” (3) SECONDS DISPLAY MORE CIRCULATING PUMPS MORE CIRCULATING DISPLAY “0002”, WAIT THREE “0002”, WAIT DISPLAY PRESS PGM SWITCH ONCE (1) PROGRAM ONE (1) OR TWO (2) PROGRAM ONE (1) OR POWER UP DELAY POWER UP SHOWS “Pd30” AND COUNTS “Pd00" DOWN TO TO “Cd00” TO “Cd99” AND COMPRESSOR DELAY SHOWS DELAY COUNTS DOWN TO ENTER, PRESS AND HOLD PGM SWITCH FOR MINIMUM OF 3 SECONDS, DISPLAY SHOWS “0001” AND HOLD PGM SWITCH FOR MINIMUM OF 3 SECONDS, DISPLAY ENTER, PRESS TO TO EXIT, PRESS AND HOLD PGM SWITCH FOR MINIMUM OF 3 SECONDS, DISPLAY SHOWS NORMAL RUN MODE SHOWS NORMAL AND HOLD PGM SWITCH FOR MINIMUM OF 3 SECONDS, DISPLAY PRESS EXIT, TO PRESSURE CHANGE UNITS TEMPERATURE, WAIT 3 SECONDS WAIT PROGRAM MODE 1 READ CONDUCTIVITY, DISPLAY SHOWS “C000” DISPLAY TO CHANGE TO NEXT PROGRAM MODE, PRESS PGM BUTTON SEQUENTIALLY IN LESS THAN 3 SECONDS FROM ENTER (“0002”, ETC) IN LESS SEQUENTIALLY PROGRAM MODE, PRESS PGM BUTTON NEXT TO CHANGE TO AGITATOR COMES ON CONSTANTLY SUPPLY POWER ON SUPPLY

Part Number STH12 9/10 85 BAR “Fb00” “FC00” SEQUENCE SHOWS “---4” CODES WILL BE CODES WILL DISABLED UNTIL TO CENTIGRADE TO SWITCH, DISPLAY TO CHANGE UNITS TO PRESS COMP/AGIT INDICATING ERROR INDICATING COMP/AGIT SWITCH COMP/AGIT SWITCH COMP/AGIT WHEN “F000” PRESS WHEN “P000” PRESS PRESSURE UNITS TO PRESSURE UNITS ONCE (1) TO CHANGE TO ONCE (1) CHANGE TO ONCE (1) NEXT POWER OFF/ON NEXT TEMPERATURE UNITS TEMPERATURE NOTE: SET POINT = POINT SET TEMPERATURE TEMPERATURE COMPRESSOR ON COMPRESSOR OFF (DEFAULT = “1273”) (DEFAULT PRESS COMP/AGIT TO RAISE SET POINT RAISE SET TO TO LOWER SET POINT LOWER SET TO PRESS CIRC A SWITCH A PRESS CIRC 2° ABOVE SET POINT) ABOVE SET 2° PRESS CIRC B SWITCH DIFFERENTIAL IS FIXED DIFFERENTIAL POINT TEMPERATURE POINT AT 2°F ABOVE SET POINT ABOVE SET 2°F AT SWITCH ONCE, DISPLAY (DIFFERENTIAL FIXED AT FIXED (DIFFERENTIAL =”1XX3" WHERE XX= SET TEMP “-112” “-102” ONCE (1) TO SHOW TO TO SHOW TO PRESSURE SUCTION TEMP PRESS CARB B TO CIRC MOTOR TO TO CIRC MOTOR TO TO SHOW WATER TO LIQUID LINE TEMP LIQUID LINE “P000” (PRESSURE) SUPPLY PRESSURE SUPPLY PRESS PGM SWITCH PRESS CIRC A SWITCH A PRESS CIRC PRESS CIRC B SWITCH “F000” (TEMPERATURE) TO SHOW WATER BATH SHOW WATER TO SWITCH TO SHOW CO2 TO SWITCH PRESS CARB A SWITCH A PRESS CARB PRESS CARB A SWITCH A PRESS CARB CONVERT CARB A MOTOR A CARB CONVERT CONVERT CARB B MOTOR CONVERT PRESS CARB A SWITCH TO SWITCH A PRESS CARB PRESS CARB B SWITCH TO PRESS CARB B SWITCH (E3) OFF ONCE (1) LARGE (E7) MOTOR OFF MOTOR BANK PROBE LEVEL PROBE LEVEL “CL_1” = WATER “CC11” = NO ICE “CC11” TO SHOW WATER TO COMPRESSOR ON PRESS COMP/AGIT CARB A CARB A MOTOR ON SENSOR IN WATER, “CA00” = NO WATER REPEAT ABOVE FOR REPEAT “CC10”= ICE ON LOW “CA11” = LOW & HIGH “CA11” “CL_0” = LOW WATER PRESS PGM SWITCH PRES CIRC A SWITCH A PRES CIRC TO SHOW LLC PROBE TO “CA01”= LOW SENSOR IN WATER, MOTOR ON MOTOR IN WATER, SWITCH TO SHOW ICE TO SWITCH “C000”(CONDUCTIVITY) “CC00” = ICE BANK TOO “CC00” = ICE BANK CARB B SWITCH “CbXX” PRESS CARB A SWITCH A PRESS CARB SENSOR COMPRESSOR

86 Part Number STH12 9/10 Troubleshooting

Electronic Refrigeration Control (ERC) Model Error Codes • Error codes will interrupt the temperature display and stay active until the error is corrected. • If multiple errors are present, the errors will rotate and display every 5 seconds. • Resetting errors — After correcting the problem, the respective switch for the error must be cycled OFF and then ON to reset. • Disconnecting and reconnecting power will erase all errors.

Error Code Error Cause E1 Low Water Supply Pressure Lower than 5 psi for 5 Seconds

E2 Low CO2 Pressure Lower than 10 psi for 5 Seconds E3 Low Water Level – Water Must Cover Top of Evaporator Bath E4 High Water Bath Temperature Water Bath Temperature Greater Than 45°F E5 High Water Supply Pressure Water Pressure Greater than 75 psi E6 High Refrigeration Discharge Line Temperature Temperature Greater than 190°F E7 High Ice Bank Size Ice Contacting Center Ice Bank Probe E8 Long Carb A Run Time Energized for 7 Continuous Minutes E9 Long Carb B Run Time Energized for 7 Continuous Minutes

Part Number STH12 9/10 87 ERROR CODES E1, E2, & E3 FLOWCHART YES MODE 1 TO VERIFY TO VERIFY NORMALLY CAUSED BY CAUSED BY WATER BATH CONDUCTORS BELOW PROBE PROBE BELOW WATER LEVEL IN IN WATER LEVEL GO INTO PROGRAM GO INTO PROGRAM PROBE TIPS CONDUCTIVITY“C000” CONDUCTIVITY“CL_X” LEVEL ABOVE LEVEL ABOVE VERIFY WATER VERIFY PRESS CIRC A BUTTON A BUTTON PRESS CIRC NO E3 ERROR GOES OFF YES/END PROBE TIPS WATER BATH ADD WATER TO ABOVE LEVEL OF OF LEVEL ABOVE NO NO >20PSI DISPLAY DISPLAY PRESSURE YES “PXXX” PSI PSI “PXXX” TO CORRECT <10 PSI FOR 5 FOR <10 PSI PRESS CARB B PRESS CARB CO2 PRESSURE SECONDS MUST READOUT “P000” BY CO2 PRESSURE CO2 PRESSURE BY MODE 1 PRESSURE MODE 1 PRESSURE STAY ABOVE 15 PSI 15 PSI ABOVE STAY BUTTON TO VERIFY GO INTO PROGRAM GO INTO PROGRAM NORMALLY CAUSED E4 E5 E6 E7 E8 E9 E3 THIS STAY ON STAY ALL CIRC ALL CARB AGITATOR ESSOR AND NOTE: THAT MOTORS AND GO OFF, WITH GO OFF, MOTORS WILL ERRORCOMPR E2 NO EI WATER WATER >15 PSI >15 PSI BY WATERBY YES DISPLAY DISPLAY PRESSURE PRESS CARB A PRESS CARB FOR 5 SECONDS READOUT “P000” PRESSURE <5 PSI PSI PRESSURE <5 PRESSURE“PXXX” PRESSURE“PXXX” MUST STAY ABOVE ABOVE MUST STAY 10 PSI TO CORRECT NORMALLY CAUSED MODE 1 PRESSURE MODE 1 PRESSURE BUTTON TO VERIFY GO INTO PROGRAM GO INTO PROGRAM

88 Part Number STH12 9/10 YES NO PINS AWAY AWAY DISPLAY DISPLAY TY= “CL_1” TY= SHORT ERC CONDUCTIVI LEVEL PROBE LEVEL PROBE LEVEL PROBE REPLACE LEVEL REPLACE LEVEL E3 ERROR GOES = “CL_0"REMOVE = “CL_0"REMOVE PROBE 020002143 CONN FROM ERC, NO YES 020001985 REPLACE ERC CIRCUIT BOARD USE TEMP) B CONNECTOR CONDITION PULL CARB A OR PULL CARB A OR OFF ERC, ERROR OFF ERC, ERROR GOES AWAY (CAN (CAN GOES AWAY CO2 SUPPLY CO2 SUPPLY SYSTEM, TO FIX SYSTEM, LOW PRESSURE PRESSURE LOW TROUBLESHOOT NO PRESS >20PSI 020001992 SUPPLY SUPPLY YES PRESSURE TRANSDUCER REPLACE CO2 REPLACE CO2 020001985 YES REPLACE ERC SUPPLY SYSTEM SYSTEM SUPPLY CIRCUIT BOARD PRESSURE TO UNIT, UNIT, PRESSURE TO VERIFY CO2 SUPPLY CO2 SUPPLY VERIFY >20PSI OR NOT, WITH WITH >20PSI OR NOT, ANOTHER GAUGE IN THE ANOTHER GAUGE IN PRESSURE CONDITION LOW WATER WATER LOW WATER SUPPLY SYSTEM, TO FIX TO SYSTEM, TROUBLESHOOT NO >15PSI SUPPLY SUPPLY YES PRESSURE BOARD CIRCUIT REPLACE 020001985 020001992 WATER SUPPLY YES SUPPLY SYSTEM SYSTEM SUPPLY PSI OR NOT WITH PSI OR NOT VERIFY INCOMING INCOMING VERIFY TRANSDUCER REPLACE ERC WATER PRESS E PRESSURE TO UNIT >15 >15 UNIT PRESSURE TO ANOTHER GAUGE IN THE ANOTHER GAUGE IN

Part Number STH12 9/10 89 ERROR CODES E4, E5, & E6 FLOWCHART “FXXX” °F YES YES LIQUID LINE LINE LIQUID TEMP >200°F SECOND TEMP GAUGE SIDE TEMPERATURE>200°F SIDE TEMPERATURE>200°F TO SHOW LIQUID LINE TEMP LINE TEMP LIQUID SHOW TO NORMALLY CAUSED BY LIQUID NORMALLY CAUSED BY LIQUID NO 1, “F000”PRESS CIRC A BUTTON 1, “F000”PRESS GO INTO PROGRAMMING MODE VERIFY TEMPERATURE WITH TEMPERATURE VERIFY E7 E8 E9 NO NO YES >75 PSI >75 PSI WATER PRESS PRESSURE >75 PSI, PSI, PRESSURE >75 SECOND PRESS GAUGE SECOND PRESS PRESSURE “PXXX” PSI PRESSURE “PXXX” VERIFY PRESSURE WITH PRESSURE VERIFY TO SHOW INCOMING WATER NORMALLY CAUSED BY WATERNORMALLY CAUSED BY GO INTO PROGRAMMING MODE MODE INTO PROGRAMMING GO 1, “P000”PRESS CARB A BUTTON A CARB 1, “P000”PRESS E4 E5 E6 YES YES E2 E3 >45 °F NO 020001985 EI WATER BATH TEMP DISLAY TEMP“FXXX” °F THERMOMETERIF STILL TO SHOW WATER BATH WATER TO SHOW BATH TEMPERATURE > 45°F <45°FREPLACE ERC BOARD <45°FREPLACE ERC VERIFY TEMP WITH SECOND TEMP VERIFY NORMALLY CAUSED BY WATERNORMALLY CAUSED BY GO INTO PROGRAMMING MODE MODE INTO PROGRAMMING GO 1, “F000”PRESS CARB A BUTTON A CARB 1, “F000”PRESS

90 Part Number STH12 9/10 VERIFIED YES YES GAS BYPASS GAS BYPASS TEMPERATURE BOARD 020001985 BOARD 020001985 FIRST CHECK FOR LINE TEMPERATURE LINE TEMPERATURE TROUBLESHOOTING GO TO COMPRESSOR / COMPRESSOR GO TO THERMISTOR 020001991 THERMISTOR 020001991 REPLACE ERC CONTROL REPLACE ERC CONTROL REFRIGERATION SYSTEM REFRIGERATION SYSTEM VERIFY TEMP WITH SECOND TEMP VERIFY REPLACE DISCHARGE/LIQUID REPLACE DISCHARGE/LIQUID CONDENSER FAILURE OR HOT NO THERMOMETERIF STILL <200°F <200°F THERMOMETERIF STILL NO YES VERIFIED VERIFIED 020001992 PRESSURE REPLACE WATER REPLACE WATER BOARD 020001985 BOARD 020001985 SECOND GAUGE, IFSECOND GAUGE, VERIFY PRESS WITH PRESS VERIFY HIGH WATER PRESS, CORRECTREPLACE ERC SUPPLY SYSTEM TO FIX. SYSTEM SUPPLY TROUBLE SHOOT WATER TROUBLE SHOOT PRESSURE TRANSDUCER REGULATOR BAD, NEEDED REGULATOR BAD, NO VERIFIED VERIFIED YES YES 020002142 THERMISTOR WITH SECOND TEMPERATURE THERMOMETER GO TO COMPRESSOR COMPRESSOR GO TO VERIFY TEMPERATURE VERIFY REPLACE WATER REPLACE WATER BATH REFRIGERATION SYSTEM REFRIGERATION SYSTEM TROUBLESHOOTING TO FIX TROUBLESHOOTING TO FIX

Part Number STH12 9/10 91 ERROR CODES E7, E8, & E9 FLOWCHART B MOTOR/PUMP SAME AS E8 FOR CARB FOR E8 SAME AS E7 E8 E9 NO YES LEAK IN SYSTEM SYSTEM FIX LEAK THAN 20 SEC) CARB SYSTEM CARB SYSTEM MOTOR A RUNNING > 7 OUTPUT(32 OZ IN LESS IN LESS OUTPUT(32 OZ THEN CHECK FOR PUMP MINUTES CONTINUOUSLY FIRST CHECK FOR LEAK INFIRST CHECK FOR LEAK NORMALLY CAUSED BY CARB YES E2 E3 E4 E5 E6 NO ICE ICE OK PIN #2 PIN #2 EI INSTALLED COVERED IN COVERED IN (MIDDLE PIN) UN-PLUG CARB B PIN #2 (MIDDLE PIN) (MIDDLEPIN #2 VERIFY ICE BANK PROBE PROBE BANK ICE VERIFY PROBE AWAY FROM EVAP FROM PROBE AWAY NORMALLY CAUSED BY ICE ON ICE BANK PROBE PIN #2 #2 PIN PROBE BANK ON ICE IS OVER ICE BANK PROBE PROBE IS OVER ICE BANK TO VERIFY CONDUCTIVITY VERIFY VISUALLY THAT ICE THAT ICE VISUALLY VERIFY CORRECTLYPLASTIC STEP ON STEP CORRECTLYPLASTIC CONNECTOR FROM ERC (#1)

92 Part Number STH12 9/10 REPLACE PUMP ON TO RESET BOARD 020001985 BOARD 020001985 IF “E8” AND/OR “E9” AND/OR “E9” IF “E8” CONTINUE TO OCCUR CONTINUE TO OCCUR NO REPLACE ERC CONTROL REPLACE ERC CONTROL RESET ERROR (PUSH CARB A CARB A RESET ERROR (PUSH AND/OR B BUTTON OFF, THEN YES PUMP GOOD 020001985 LONGGOTO REPLACE ERC COMPRESSOR / REFRIGERATION CONTROL BOARD IF CONTROL BOARD IF TROUBLESHOOTING PROBLEM CONTINUES COMPRESSOR ON TOO COMPRESSOR ON YES NO NO YES BOARD “E7” ERROR “E7” ERROR GOES AWAY GOES AWAY GOES AWAY GOES AWAY PROBE 020002091 PROBE 020002091 REPLACE ICE BANK REPLACE ICE BANK UN-PLUG ICE BANK PROBE CONNECTOR (#3) FROM ERC

Part Number STH12 9/10 93 COMPONENT TROUBLESHOOTING YES WILL VERIFY KEYPAD KEYPAD WILL NOT WILL NOT AGITATOR COME ON STILL NOT STILL NOT AGITATOR BUTTON / LED COME ON WITH COME ON AGITATOR SHOOTING PAGE 7 SHOOTING PAGE WILL GO OFF KEYPAD KEYPAD REPLACE OFF WITH STILL NOT STILL NOT YES AGITATOR AGITATOR WILL NOT GO GO NOT WILL BUTTON / LED VERIFY KEYPAD/DISPLAY GOOD, GOOD, KEYPAD/DISPLAY VERIFY SEE KEYPAD / DISPLAY TROUBLE / DISPLAY SEE KEYPAD NO/ END TEMP ON ERC REMOTE MOTORS SYSTEM SYSTEM COMPRESSOR CONDENSER REFRIGERATION IF COMPRESSOR IF COMPRESSOR FAN / REMOTE ARE COMMON TO ARE COMMON TO NO COOLING, USE USE NO COOLING, REFRIGERATION CONDENSERCHECK CHECK (LIQUID LINE TROUBLESHOOTING OUTPUT TERMINALS OUTPUT TERMINALS AND WIRING TO FAN / COMES ON AND STILL TEMP) AND EVAP OUT TEMP) AND EVAP CHECK CONNECTORS NO PROBES TO RESET CONDUCTIVE ON PULL CARB A CONN COME ON COMPRESSOR COMPRESSOR WILL STILL NOT WILL STILL WILL NOT COME WILL NOT SHOOTING PAGE 7 SHOOTING PAGE OFF GO OFF COMPRESSOR VERIFY KEYPAD/DISPLAY GOOD, GOOD, KEYPAD/DISPLAY VERIFY SEE KEYPAD / DISPLAY TROUBLE / DISPLAY SEE KEYPAD WILL NOT GO GO NOT WILL COMPRESSOR COMPRESSOR WILL STILL NOT WILL STILL VERIFY ICE BANK BANK ICE VERIFY PROBE TIP #1 IN ICE IN PROBE TIP #1

94 Part Number STH12 9/10 VERIFY VERIFY ON ERC ERC IF NO NO IF VOLTAGE VOLTAGE AGITATOR MOTOR BOARD TERMINALS MOTOR REPLACE REPLACE VOLTAGE VOLTAGE CONTROL AGITATOR 020001985 AGITATOR VERIFY WIRING / CONNECTORS TO ERC END 0001985 REPLACE BOARD02 CONTROL REPLACE CONTACTOR COIL HPCO CHECK RS AND SWITCH REPLACE WIRING TO TO WIRING CONNECTO 020001985 CONTACTOR REPLACE COMPRESSOR BANK PROBE CONTROL BD REPLACE ICE REPLACE ERC NO NO NO YES YES NO PINS ERC COIL SWITCH PROBES CONN 12 VERIFY HPCO VOLTAGE AT VOLTAGE CLOSEDSHORT COMPRESSOR TERMINALS ON TERMINALS ON SHORT ICE BANK SHORT ICE AT CONTACTOR VERIFY PROPER VERIFY VERIFY VOLTAGE VOLTAGE VERIFY VERIFY VOLTAGE VOLTAGE VERIFY CONNECTOR #3ALL AT COMP OUTPUT AT COMP OUTPUT ELSE 020002091 BANK PROBE BANK PROBE REPLACE ICE COMPRESSOR CONN ON ERC, PULL ICE BANK BANK PULL ICE REPLACE ERC CONTROL BD 020001985 SHOULD GO OFF SHOULD GO

Part Number STH12 9/10 95 ERC BOARD REPLACE CONTROL DISPLAY DISPLAY L1 AND L2 “PdXX”ON “PdXX”ON VERIFY NO VERIFY LED NOT ON ERC POWER VOLTAGE ON VOLTAGE POWER ERC COUNTDOWN OFF, THEN ON, VERIFY PROPER VERIFY ERC TERMINALS DISPLAY DISPLAY AND KEYPAD / AND KEYPAD ERC CONTROL BOARD KEYPAD KEYPAD WORK WORK KEYPAD / KEYPAD COME ON WORKING WORKING KEYPAD KEYPAD YES RESPECTIVE RESPECTIVE DISPLAY NOT DISPLAY LEDS DO NOT LEDS DO NOT OFF THEN ON TURN POWER BUTTON(S) DO NOT RESPOND, TO RESET ERC TO RESET BUTTONS NOW NO TURNON DOES NOT CIRC MOTOR ERC TERMINALS ON TERMINALS ON VERIFY VOLTAGE VOLTAGE VERIFY AT CIRC OUTPUT AT CIRC VERIFY NO VERIFY “E1” ERROR ON AND OFF CIRC LED GOES CIRCULATING VERIFY KEYPAD / KEYPAD VERIFY DISPLAY WORKS, WORKS, DISPLAY SYSTEM A OR B SYSTEM TURNON YES / END DOES NOT CIRC MOTOR Y PRG PUMPS 002”FOR SET TO “- MODE 2 IS IS MODE 2 FIRSTVERIF BOTH CARB OFF CARB “CX11” MOTOR SHOULD BE / TURNOFF DOES NOT YES YES END CARB MOTOR “C000” A OR B A OR “CX__” X= A OR B B X= OR A “CX__” ON CARB “CX00” MOTOR CONDUCTIVITY PROBES CONDUCTIVITY CARBONATOR SYSTEM CARBONATOR SYSTEM SHOULD BE VERIFY NO “E1” ERRORGOTO TURNON PRESS CARB A AND/OR CARB B CARB B AND/OR A PRESS CARB DOES NOT PROGRAM MODE 1 CONDUCTIVITYPROGRAM MODE CARB MOTOR BUTTON, VERIFY CARB A AND/OR B CARB A AND/OR BUTTON, VERIFY

96 Part Number STH12 9/10 NO YES ERC POWER UP 020001986 DISPLAY SHOWS SHOWS DISPLAY COUNTDOWN“PdXX” BOARD 020001985 BOARD 020001985 KEYPAD / DISPLAY020001986 / DISPLAY020001986 KEYPAD IF DISPLAY FLASHES ERRATIC REPLACE ERC CONTROL REPLACE ERC CONTROL NUMBERS / SYMBOLS, REPLACE REPLACE SYMBOLS, NUMBERS / REPLACE KEYPAD / DISPLAY / DISPLAY REPLACE KEYPAD THEN DISPLAY IS PROBABLY AT FAULT, NOT AT FAULT, PROBABLY IS THEN DISPLAY GENERAL NOTE: FOR DISPLAY PROBLEMS, IF FOR DISPLAY PROBLEMS, GENERAL NOTE: COUNTDOWN UP, “PdXX”, OCCURS ON POWER AND ORIF MOTOR KEYPAD / KEYPAD REPLACE 020001985 DISPLAY IF IF DISPLAY CHECK CIRC ERC BOARD CIRC MOTOR, OK, REPLACE OK, REPLACE WIRES/MOTOR BAD 020001986 CONNECTORS TO CHECK ALL WIRES WIRES CHECK ALL NO/ END YES NO AGIT AT ERC BOARD OUTPUT VOLTAGE VOLTAGE CONTROL 020001985 TERMINALS REPLACE ERC NO YES NO AGIT AT ERC OUTPUT 020001985 VOLTAGE VOLTAGE TERMINALS TANK WIRING CARB MOTOR REPLACE ERC HARNESSCHECK CONTROL BOARD CHECK ALL WIRES WIRES CHECK ALL AND CONNECTORS FOR OPEN ON CARB FOR OPEN

Part Number STH12 9/10 97 Checklist If a problem arises during operation of your post mix soda refrigeration unit, follow the checklist below. Routine adjustments and maintenance procedures are not covered by the warranty.

! Warning Only trained and certified electrical and plumbing technicians must service this unit. All wiring and plumbing must conform to national and local codes.

Problem Possible Cause To Correct Water only Regulator(s) out of Check/adjust regulator(s). dispensing: adjustment No pressure Out of CO2 Install fresh tank. Defective regulator(s) Check/repair/replace regulator(s).

CO2 line pinched, Check/repair/replace CO2 line. kinked, or obstructed

Syrup and CO2 only No power Check power supply. Plug in dispensing: carbonator or reset breaker. Carbonator Water supply Make sure water is turned ON. Replace water filter. Check/clean/replace pump strainer. Check/clean/repair water check valve. Check for frozen water line. Internal Carbonator unit only. Defective carbonator Check/repair/replace carbonator pump, motor, electrode or liquid level control.

Syrup and plain Out of CO2 Install fresh tank. water only dispensing: No HP regulator out of Adjust HP regulator to the proper pressure adjustment setting. Defective HP Check/repair/replace HP regulator regulator.

CO2 line pinched, Check/repair/replace CO2 line. kinked, or obstructed One valve will not Broken wire or loose Replace/repair wire or connector. dispense anything: connection Is there power to the valve? Bad microswitch Replace microswitch.

98 Part Number STH12 9/10 Problem Possible Cause To Correct Beverage Flow control out of Adjust the flow control. dispensed is too adjustment sweet: Is the ratio (brix) of Insufficient soda flow Adjust CO2 pressure or change the drink correct? due to low carbonator the tank. pressure

Low CO2 pressure Repair CO2 leaks. due to leaks Obstruction in the Clean out the lines. water or soda line Beverage is not Flow control out of Adjust the flow control. sweet enough: adjustment Is the ratio (brix) of the drink correct? Soda flow too high Reset CO2 pressure or replace regulator if necessary. Obstruction in syrup Clean out the syrup line. line

Drinks are foaming: Over carbonation Check CO2 supply. Reset Are system pressure or replace regulator is pressures correct? necessary. Dirty lines/valves Clean/sanitize entire system.

Part Number STH12 9/10 99 Problem Cross-reference Guide 2 CO Carbonated Circulating Compress Air Dispenser Electrical Refrigeration Syrup Booster Water Filter Water No carbonated water X X X X Carbon particles in drink X X X Flat drinks X X R R X No or insufficient non-carbonated XXX water Warm drinks X R No or insufficient syrup X X R X Peculiar taste carbonated water X R Peculiar taste non-carbonated RXR water Peculiar taste syrup X X R Carb and booster pump noisy R R X Air compressor operates XR excessively

Loss of CO2 gas X R Drinks too sweet R X Too much syrup X R Too much carbonated water X Too much non-carbonated water X R Foaming X R Booster pump/motor won’t cycle X OFF Booster pump/motor won’t cycle X ON Excessive Carbonation X

Low pressure CO2 alarm won’t X cycle ON

Low pressure CO2 alarm won’t X cycle OFF Water found in primary regulator X Booster pump/motor won’t cycle X OFF Booster pump/motor won’t cycle X ON Product dripping from nozzle X Valves will not activate X Valves will not shut OFF X Unit totally inoperative X

X - Specific problem listed in section R - Problem refer to from section with “X”

100 Part Number STH12 9/10 CO2 Gas System On units not equipped with Air Pump, check all Probable Causes listed below.

Probable Qualifier Cause Corrective Action

Loss of CO2

If leak occurs while CO2 Tank Use a soap solution around CO2 Tank Change-over valve leaking. valve Stem to locate leaks. If leaks are is positioned on Air, present, bubbles will appear. If valve follow the “Probable Stem leaks at Tank, replace CO2 Causes” (for units Tank. equipped with Air Pump). CO2 Washer Use a soap solution around Primary damaged or Regulator Coupling Nut and CO2 Tank missing. Stem. If bubbles appear, remove Regulator and replace CO2 Washer found inside Nut. Secure Regulator to Tank and check for leaks. Primary Use a soap solution around Primary Regulator Regulator Adjustment Screw in Diaphragm Bonnet. If bubbles appear, diaphragm leaking. is leading. Replace Primary Regulator. Ruptured Line Use a soap solution around all Assembly or connections. If bubbles appear, leaks at tighten loose connections carefully. connections. A to B Use a soap solution around A and B Change-over CO2 Tank Change-over Valve, tighten Valve leaking. if bubbles appear at Connections to stop leaks.

CO2 Low Use a soap solution around Low Pressure Switch Pressure CO2 Switch. If bubbles leaking. appear at pipe, tighten Connection. If bubbles appear at Terminal end of Switch - replace Switch.

CO2 Check Use a soap solution around Check valve leaking. valve. If bubbles appear, tighten Connection to stop leaks. Back Flow Use a soap solution around Back Flow Preventer stuck Preventer. Tighten if bubbles appear open. at connection. If bubbles appear at Vent Hole on underside of Back Flow Preventer, clean out or replace Back Flow Preventer valve and corresponding Water Check valve. Carbonator Use a soap solution around Relief Tank Relief valve. If bubbles appear, replace valve leaking. Relief valve. If leak occurs only Gas leak at the Refer to Troubleshooting “Syrup while Change-over syrup system. System” under No syrup or valve is positioned insufficient syrup in finished drink. on CO2, refer to Troubleshooting “Syrup System”.

Part Number STH12 9/10 101 Probable Qualifier Cause Corrective Action Flat drinks (lack of carbonation in carbonated water)

Primary Regulator CO2 Supply Verify CO2 Tank pressure is a (less than 500 psi exhausted (CO2 minimum of 500 psi (34.5 bar) on the [34.5 bar]). Tank is Primary Pressure Regulator Gauge functionally marked 0-2000 psi. Replace tank if empty if necessary. pressure reads less than 500 psi [34.5 bar]).

Primary Verify CO2 Primary Regulators are set Regulator out of at 90 psi (6.3 kg/cm2). Adjust if adjustment or necessary. If Regulator will not stay in inoperative. adjustment, replace Regulator.

CO2 Supply A and B CO2 If A and B CO2 Tank Change-over adequate (greater Tank Valve is positioned on an empty Tank than 500 psi Change-over or halfway between A and B operating [34.5 bar]). Valve incorrectly positions, CO2 is not supplied to positioned. Carbonators. Ensure valve handler is in the “operating” position. Malfunction of Refer to Troubleshooting the “Refrigeration System” under Warm Refrigeration drinks. System. Water Filter Refer to Troubleshooting “Water Filter restricted. System” under Peculiar taste. Malfunction of Refer to Troubleshooting “Carbonated the Carbonated Water System” under Flat drinks. Water System.

Excessive Primary Verify CO2 Primary Regulators are set carbonation Regulators set at 90 psi (6.3 kg/cm2). Adjust if (foaming). too high. necessary. If Regulator will not stay in adjustment, replace regulator. Replace.

Low Pressure CO2 Warning lamp or When CO2 Tank is empty and CO2 Warning light or buzzer burned warning lamp(s) or buzzer fail, verify buzzer does not out. voltage across Transformer. If no come ON. Transformer voltage, replace Transformer. inoperative.

Pressure Switch If CO2 Warning lamps or buzzer and defective. transformer are operative. Pressure Switch is defective and must be replaced.

102 Part Number STH12 9/10 Probable Qualifier Cause Corrective Action Flat drinks (lack of carbonation in carbonated water) (continued)

Low Pressure CO2 Leaks on If leaks exist on CO2 System, not Warning light or system. enough pressure is maintained to buzzer does not go allow Pressure Switch to cut OFF CO2 OFF. Warning light or buzzer. Use a soap solution to located possible leaks. Tighten connections carefully.

Primary Check CO2 supply. The Primary Regulator out of Regulators must be set at 90 psi adjustment. (6.3 kg/cm2). Adjust if necessary. If regulator will not stay in adjustment, replace regulator. Pressure Switch Carefully disconnect one wire from the inoperative. CO2 Pressure Switch, if CO2 Warning Lamps go out, the CO2 Pressure Switch is defective and should be replaced. Carefully disconnect one wire from the CO2 Pressure Switch, if CO2 Warning Lamps go out, the CO2 Pressure Switch is defective and should be replaced.

Water found in CO2 CO2 Check Turn CO2 OFF at CO2 Tank valve. Regulator and Valve defective. Remove top Cover from Remote lines. Refrigeration Unit. Locate CO2 Check valve on top of Carbonator Tank. Remove CO2 line on Inlet side of Check Valve. If CO2 is present, escaping from Carbonator Tank, clean out or replace Check valve.

Part Number STH12 9/10 103 Carbonated Water System

Probable Qualifier Cause Corrective Action Flat drinks Malfunctioning of Beverages at Refer to Troubleshooting Refrigeration dispensing “Refrigeration System” under Warm System. tower are above drinks. 40°F (5°C). Malfunctioning of Refer to Troubleshooting “Circulating Circulating System. System” under Warm drinks.

Beverages at CO2 supply Verify CO2 Tank pressure is a dispensing tower exhausted. minimum of 500 psi (35 kg/cm2) on are below 40°F Primary Pressure Regulator Gauge (5°C). marked 0-2000 psi. Switch to full tank if necessary.

Ensure CO2 Shut-off Valves to Carbonators are both in the ON position. Refer to Troubleshooting “CO2 Gas System” under Flat drinks.

Primary CO2 Verify CO2 Primary Regulators are set Regulator out of at 90 psi (6.3 kg/cm2). Adjust if adjustment or necessary if Regulator will not stay in inoperative. adjustment replace Regulator. Water Regulator Verify Filtered Water Pressure Gauge incorrectly registers 55 psi (3.9 kg/cm2), if higher adjusted or than 55 psi, flooding of Carbonator will inoperative. occur. To adjust, loosen Locknut, turn Adjustment Screw clockwise to increase, counterclockwise to decrease. If regulator will not respond to adjustments, replace regulator. Improper water Verify By-pass handle is in the “filter treatment. operating” position. Ensure Filter Cartridge is still effective, if necessary replace Cartridge. Refer to Troubleshooting “Water Filter System” Carbonator Dispense Carbonated Water while Pump worn listening for carbonator pump and (Brass pump). motor to cycle ON at Refrigeration Unit. Pumps should operated between 6 to 12 seconds before cycling OFF. If operating time exceeds 30 seconds carbonator pump is worn, replace Pump. Pressure Relief Remove top cover from Remote Valve is leaking. Refrigeration Unit. Dispense Carbonated Water until carbonator Pumps and Motor cycle ON. Observe Pressure Relief Valves on carbonator Tank. If water is observed escaping from either, replace leaking Relief valve. Note: Do not confuse the Water Bath Make-up valve for the carbonator Tank Relief valves.

104 Part Number STH12 9/10 Probable Qualifier Cause Corrective Action Beverages at Back Flow Remove top cover from Remote Dispensing Tower Preventer. Refrigeration Unit. Use a soap are below 40°F solution around Back Flow Preventer. (5°C). (continued) If bubbles appear at Vent Hole or underside of Back Flow Preventer, clean or replace Back Flow Preventer and corresponding Water Check valve carbonator Tank. Double Check With top cover from Remote valve (water) Refrigeration Unit removed and stuck open. carbonator Pump Switch and Water turned OFF, loosen water supply line at inlet side of Double Check valve Assembly. If CO2 gas escapes from Check valve, it must be cleaned or replaced.

Part Number STH12 9/10 105 Probable Qualifier Cause Corrective Action No carbonated water at any of the dispensing valves

No CO2 gas or Malfunction of Refer to Troubleshooting water present at Refrigeration “Refrigeration System” under No dispensing valves. System. carbonated water at any of the dispensing valves (freeze up). Malfunction of Refer to Troubleshooting “Circulating Circulating System” under No carbonated water System. at any of the dispensing valves.

CO2 gas is present No power to Verify toggle switch for Carbonator is at dispensing carbonator. in the ON position and Main Power valves but no water. Supply is ON. Water supply Verify water to unit by observing restricted to Filtered Water Pressure Gauge. It carbonator should register 55 psi (3.9 kg/cm2). To pump. adjust, loosen Locknut, turn Adjustment Screw clockwise to increase, counterclockwise to decrease. If regulator will not respond to adjustments, replace regulator. Examine Water Shut-off Valve(s) to Carbonator and ensure they are in the ON position. Water Filter Place Filter By-pass Valve into the restricted. Filter By-pass position. Replace Cartridge Filter. Reposition valve handle to “operating” position. Water Inlet Remove Filter Screen from Inlet strainer Strainer in carbonator Pump (Brass), clogged. flush with water to clean and reassemble. Liquid Level Push Toggle Switch for carbonator Control and circulator to the OFF position. defective. Shut OFF Main Power Supply unit. Remove electrical Access Panel from unit. Locate liquid level control. Using a pair of insulated needle nose pliers, carefully remove the white wire from the terminal marked “H” and the black wire from the terminal marked “L” on the Liquid Level Control Board. Position safely to side. Turn ON Main Power Supply. Push carbonator Switch to the ON position. If carbonator pump and motor do not cycle ON immediately, that Liquid Level Control is defective. Replace. Electrode If Liquid Level Control is operating, Assembly test the Electrode Assembly, refer to defective. Probable Cause “Liquid Level Control Defective”. Verify wire leads are dry and that they are not touching. If not, replace Electrode.

106 Part Number STH12 9/10 Probable Qualifier Cause Corrective Action No carbonated water at any of the dispensing valves (continued)

CO2 gas is present Carbonator Dispense Carbonated Water while at Dispensing Pump worn listening for carbonator pump and Valves but no (Brass pump). motor to cycle ON at Refrigeration water. (continued) Unit. Pumps should operate between 6 to 12 seconds before cycling OFF. If operating time exceeds 30 seconds, carbonator Pumps is worn, replace Pump. Motor defective. If Motor will not operate, verify voltage across Motor Terminals with voltmeter. If voltage reads 110 to 120 VAC, the Motor or Pump is defective. Loosen the Coupling Clamp with a flat-blade screwdriver and disengage Pump from Motor. If Motor still will not operate with Pump disengaged, Motor is defective. Replace. Carbonator Loosen the Coupling Clamp with a Pump frozen. flat-blade screwdriver and disengage Pump from Motor. By hand, turn the Coupling Key in back of Pump. If pump shaft will not spin freely, Pump is defective and must be replaced.

Part Number STH12 9/10 107 Probable Qualifier Cause Corrective Action Carbonator pump and motor will not cycle OFF (possibly noisy pump)

Little or no Primary CO2 Verify CO2 Primary Regulators are set carbonated water at Regulator at 90 psi (6.3 kg/cm2). Adjust if dispensing valve. adjusted at necessary. If regulator will not star in extremely high adjustment, replace regulator. pressure. Water supply to Verify water to unit by observing Carbonator Filtered Water Pressure Gauge. It Pump shut-off should register 55 psi (3.9 kg/cm2). or restricted. Examine Water Shut-off Valves to carbonator and ensure they are in the ON position. Examine Pump Strainer for restriction. Clean if necessary. Water Filter Place Filter By-pass valve into the restricted. “Filter By-pass” position. If carbonator pump and motor immediately cycle OFF, Filter Cartridge is restricted. Replace Cartridge. Back Flow Examine Filter Water Pressure Preventer or Gauge. If it registers 90 psi (6.3 2 Double Check kg/cm ) CO2 gas is passing from the Valve. carbonator tank and through the Back Flow Preventer or Double Check Valve, preventing water from entering pump. Clean or replace Back Flow Preventer/Double Check Valve. Carbonator Remove top cover from Remote Pump worn. Refrigeration Unit. Locate Toggle Relief Valve on Carbonator Tank and lift lever to allow CO2 gas to escape from Tank for 30 seconds. If during this time Carbonator Pump cycles OFF, pump is worn and should be replaced. Coupling Key Loosen the Coupling Clamp with a defective. flat-blade screwdriver and disengage Pump from Motor. Examine Coupling Key in Pump. If defective, replace.

108 Part Number STH12 9/10 Probable Qualifier Cause Corrective Action Carbonator pump and motor will not cycle OFF (possibly noisy pump) (continued) Carbonated water Liquid Level Shut OFF main power supply to unit at dispensing valve. Control and push Toggle Switch for defective. Carbonator and Circulator to the OFF position. Remove Electrical Access Panel from Refrigeration Unit and locate Liquid Level Control. Strip a 1-1/2" (3.8 cm) piece of solid strand wire of insulation to use as a jumper. Turn main power supply unit ON to unit. With a pair of insulated pliers, jump across Terminals marked “G, H and L” on Liquid Level Control. Simultaneously, while pushing corresponding Toggle Switch to “carbonator” to the ON position. If carbonator pump and motor continue to operate after Liquid Level Control Jumper Wire is in place, Liquid Level Control is defective, replace. Electrode Examine wire leads to ensure no defective. breaks in connections. Remove and clean Electrode with find sand paper and reinstall. Note: Reversing Electrode Wire Leads on either electrode or Liquid Level Control will cause erratic operation of carbonator Motor. Refer to Wiring Diagram. Peculiar taste in Water filter Refer to Troubleshooting “Water Filter carbonated water contaminated. System” under Peculiar taste. only. Back Flow Push Toggle Switch for carbonator to Preventer Valve the OFF position. Turn Water Shut-off leaking or Valve to carbonator to the OFF Double Check position. Remove tope cover from Valve leaking. Remote Refrigeration Unit. Carefully disconnect water line on the outlet side of the carbonator pump. If water or CO2 is observed continually escaping from line, Back Flow Preventer/Double Check Valve is leaking. Disassemble, clean, and replace if necessary. Caution: Carbonated water must never be allowed to flow through materials other than plastic or stainless steel. (Copper, zinc or galvanized material is non-acceptable.) Carbonated Trace carbonated water flow through water flowing system. Ensure no foreign materials through are present. Replace non-acceptable materials other material if found. than plastic or stainless.

Part Number STH12 9/10 109 Probable Qualifier Cause Corrective Action Carbonator pump and motor will not cycle OFF (possibly noisy pump) (continued) Carbon particles in Malfunction of Refer to Troubleshooting “Water Filter furnished drink. Water Filter. System” under Carbon particles in finished drinks. Defective Remove top cover from Refrigeration Carbonator Unit. Loosen Coupling Clamp with a Pump. flat-blade screwdriver and disengage pump from motor. Turn the Coupling Key by hand, in back of pump. If pump shaft does not turn freely and/or Carbon is found in pump, carbon veins are defective. Replace pump. Carbonator Motor Defective Refer to Troubleshooting “Circulating cycles ON and OFF Circulating System” under Carbon particles in in short cycles. Pump. finished drinks. Electrode Examine wiring diagram found on Assembly Refrigeration Unit. Verify Electrode incorrectly wired wiring leads are on proper terminals of or defective. both Electrode and Liquid Level Control. If problem still occurs, replace electrode.

110 Part Number STH12 9/10 Circulating System

Probable Qualifier Cause Corrective Action Warm drinks Drinks warm Malfunction of Refer to Troubleshooting throughout the day, Refrigeration “Refrigeration System” under Warm warm all the time. System. drinks (carbonated water temperature over 40°F [5°C]). Drinks warm during No power to Verify Switch to Circulating Motor is in periods of low Circulating the ON position and Main Power demand, much Motor. Supply is ON. colder during periods of high demand. Carbon Particles in Motor defective. Using a flat-blade screwdriver, loosen finished drink. the Coupling Clamp and disengage Pump from Motor. If Motor will not operate, verify voltage across Motor Terminal with voltmeter. If voltage reads from 110 to 120 VAC, the Motor is defective and should be replaced. Circulating Dispense approximately 1 gallon of Pump defective carbonated water at dispensing (stainless steel). valves. If temperature of carbonated water drops, Circulating pump is not operating. Examine Coupling Key found between Pump and Motor Shaft. If coupling key is defective, replace. If key is operational, Circulating pump is defective, replace.

No CO2 gas or Malfunction of Refer to Troubleshooting “Water Filter water present at Water Filter. System” under Carbon particles in dispensing valve. finished drinks. Malfunction of Refer to Troubleshooting “Carbonated Carbonated Water System” under Carbon Water System. particles in finished drinks. Circulating Remove top cover from Refrigeration Pump defective Unit. Loosen Coupling Clamp with a (Stainless flat-blade screwdriver and disengage Steel). Pump from Motor. Turn Pump shaft with screwdriver. If Pump does not turn freely and/or carbon is found in Pump, carbon veins in pump are defective. Replace Circulating Pump.

CO2 gas is present Malfunction of Refer to Troubleshooting at dispensing Refrigeration “Refrigeration System” under No valves but no System. carbonated water at dispensing carbonated water. valve (freeze up). Particles Remove top cover from Remote obstructing flow Refrigeration. Push toggle switch to through carbonator and circulator to the OFF Circulating position. Lift lever on Toggle Relief Circuit (In-line valve at top of carbonator Tank until Strainer). pressure is completely released. Remove In-line Strainer Screen. Flush with clean water and reassemble.

Malfunction of If CO2 gas is present at the Carbonating Dispensing Valves and there is no System. water, the problem is in the Carbonated Water System. Refer to Troubleshooting “Carbonated Water System”.

Part Number STH12 9/10 111 Compressed Air System Until repairs can be made on Compressed Air System, place Air/CO2 Change-over Valve in the CO2 Operating position.

Probable Qualifier Cause Corrective Action No syrup Air Compressor will No power to Air Verify Toggle Switch to Air not cycle ON and Compressor. Compressor is in the ON position and Air Pressure Gauge main power supply is ON. registers 0 psi. Pressure Switch Remove Pressure Switch Cover and defective. use a voltmeter across Switch to determine whether “open” or “closed”. If in “open” position, replace switch. Motor defective. Verify voltage across Motor with a voltmeter, if Motor/Pump assembly will not operate, it is defective and should be replaced. Pump frozen. Same as above for Motor defective.

Air Compressor Air/CO2 Place Air/CO2 Change-over Valve to cycles ON and OFF Change-over the Air or CO2 “operating” position. and Air Pressure Valve placed in Gauge readings incorrect Note: If lever is positioned between range between position. Air and CO2 the gas supply is shut 70 psi (4.9 kg/cm2) OFF to syrup system. to 90 psi (6.3 Malfunction of Refer to Troubleshooting “Syrup kg/cm2). Syrup System. System”, under No syrup. Malfunction of Refer to Troubleshooting Refrigeration “Refrigeration System”, under No System. carbonated water at dispensing valves (freeze up).

112 Part Number STH12 9/10 Probable Qualifier Cause Corrective Action No syrup (continued) Air Compressor Leak at Shake Turn air supply to Shake Machine to operates Machine, OFF position. If Air Compressor cuts excessively. Orange Juice out and maintains pressure, leak is at Dispenser or Shake Machine or Orange Juice other optional Dispenser. Refer to manufacturer’s equipment. manual for Troubleshooting. Leak at Use a soap solution around all Compressed Air connections starting from the Air System. Motor/Pump assembly to the Low and Medium Pressure Syrup Regulators. If bubbles appear, tighten loose connections carefully. Automatic Drain Place drain line for bottom of or Petcock Automatic Drain or Petcock in cup of leaking. water. If air bubbles appear, Automatic Drain or Petcock is leaking. Clean and/or replace as necessary. Air leak in syrup Refer to Troubleshooting “Syrup system. System” under No syrup, air leak at syrup system. Restricted Replace Germicidal Filter. Germicidal Filter Note: This Filter is not designed to be on Air cleaned, but must be replaced when Compressor. exhausted. Water in Air Verify Automatic Drain is operating. If Accumulator inoperative or defective, replace. If Tank. unit is not equipped with Automatic Drain use Petcock to remove water from tank. Motor/Pump If Motor/Pump assembly operate Assembly without building up to 90 psi inoperative. (6.3 kg/cm2) as needed to cycle OFF. Pump Assembly is defective and must be replaced. Pressure Switch Observe Air Pressure Gauge to improperly ensure proper cycle ON at 70 psi adjusted or (4.9 kg/cm2) and cycle off at 90 psi defective. (6.3 kg/cm2) settings. Refer to instructions found under Switch cover for adjusting. If Switch will not respond to adjustment, replace switch. Check valve While Air Compressor is in the OFF defective. cycle, use a soap solution around Head Gasket on Motor/Pump Assembly. If bubbles appear, replace Check valve located on the Air Accumulator Tank. Peculiar taste in Contaminated Replace Germicidal Filter. finished product. Germicidal Filter Note: This filter is not designed to be on Air cleaned, but must be replaced when Compressor. exhausted. Water in Air Drain trapped water from tank by Accumulator removing Drain Line from top of Tank. Automatic Drain. Disassemble and clean Automatic Drain. If unit is not equipped with automatic drain, use petcock to remove water from tank. Water Filter Refer to Troubleshooting “Water Filter contaminated. System” under Peculiar taste.

Part Number STH12 9/10 113 Dispensing Valve and Tower

Probable Qualifier Cause Corrective Action All corresponding Malfunction of Refer to Troubleshooting “Syrup valves dispensing syrup system. System” under No syrup or no syrup. insufficient syrup in finished drink. No syrup at only Syrup Shut-off Remove top cover from Dispensing one dispensing Valve closed or valve or Tower. Locate Syrup Shut-off valve. partially closed. Valve on right hand side of Dispensing valve. Verify shut-off is turned fully open. Mounting Block Remove Dispensing valve from restricted. Mounting Block. Place cup over Syrup outlet on Mounting Block and carefully open Syrup Shut-off Valve. If little or no syrup is present, Mounting Block is restricted. Remove and clean mounting block. Replace if necessary. No syrup or insufficient syrup in finished drink No carbonated Flow Control Readjust Flow Control to proper Brix. water at half or all our of If no response, clean Syrup Flow dispensing valves. adjustment or Control. Replace if necessary. inoperative. Valve Port Clean Syrup valve Port Assembly. restricted. Seat swollen. Replace Syrup Seat. Solenoid Coil Replace Syrup Solenoid Coil. defective. Malfunction of Refer to Troubleshooting “Carbonated Carbonated Water System” under No carbonated Water System. water at any of the dispensing valves.

114 Part Number STH12 9/10 Probable Qualifier Cause Corrective Action No carbonated water or insufficient carbonated water in finished drink No Carbonated Carbonated Remove top cover from Dispensing Water only at one water Shut-off valve or Tower. Locate Carbonated dispensing valve. Valve closed or Water Shut-off Valve on left hand side partially closed. of Dispensing valve. Verify Shut-off Valve is turned fully open. Mounting Block Remove Dispensing valve from restricted. Mounting Block. Place cup over Carbonated Water outlet on Mounting Block and carefully open Carbonated Water Shut-off Valve. If little or no Carbonated Water is present, Mounting Block is restricted. Remove and clean mounting block. Replace if necessary. Flow Control Readjust Flow Control to proper Brix our of (5 oz in 4 seconds Standard valve, adjustment or 10 oz in 4 seconds Fast Flow valve). If inoperative. no response, clean Carbonated Water Flow Control. Replace if necessary. Valve Port Clean Carbonated Water valve Port restricted. Assembly. Seat swollen. Replace Carbonated Water Seat. Solenoid Coil Replace Carbonated Water Solenoid defective. Coil. Carbonated Replaced Carbonated Water Switch. Water Switch defective (black).

Part Number STH12 9/10 115 Probable Qualifier Cause Corrective Action No water or insufficient water in finished drinks All valves Water Shut-off Refer to Troubleshooting “Water dispensing Valve closed or Booster System” under Low or No noncarbonated partially closed. Water Pressure at Noncarbonated drinks no water. Beverages. Problem occurs at Refer to this section on No only one dispensing carbonated water at only one valve. dispensing valve in the dispensing valve. Too much Syrup, Syrup, Readjust appropriate Flow Control. If Carbonated Water carbonated Flow Control does not respond to or Water in finished water, or adjustment, clean Flow Control. drink. Problem noncarbonated Replace if necessary. Carbonated occurs at only one water flow Water Flow rates: (5 oz in 4 seconds dispensing valve. control out of Standard valve, 10 oz in 4 seconds adjustment or Fast Flow valve). inoperative. Too much syrup in Malfunction of Refer to Troubleshooting “Syrup finished drink. All syrup system. System” under Drinks too sweet. valves dispensing same flavor-too much syrup. Too much water in Malfunction of Refer to Troubleshooting “Water finished drink. All water Booster Booster System” under Qualifier: valves dispensing system. Pump and motor cycles ON and noncarbonated OFF excessively. drink too much water. Syrup or Valve port Disassemble appropriate Syrup or Carbonated Water scarred. Water Assembly. Examine valve Port or Water dripping for scars or nicks. Replace if from Nozzle. necessary. Armature Spring Disassemble appropriate Syrup or or Retaining Water Assembly. Examine Armature, Ring broken. Spring and Retainer Ring. If damaged, replace. Seat scarred or Disassemble appropriate Syrup or obstructed. Water Assembly. Examine Seat, if scarred, replace. If foreign material is found in Assembly, remove, reassemble. Valves will not Transformer Verify wire leads from Transformer activate when inoperative. have solid connections. Switch low Selection Panel voltage lead from Transformer pressed. Problem supplying power to left and right hand occurs at two (2) or side of Tower. If Valves operate and three (3) the other three do not, Transformer is consecutive Valves defective. Replace. on one (1) tower. Dispensing If after switching Leads, the three tower’s ON and valves still do not operate, the ON and OFF Toggle OFF Toggle Switch is defective. defective.

116 Part Number STH12 9/10 Probable Qualifier Cause Corrective Action No water or insufficient water in finished drinks (continued) Problem occurs at No power to Verify power with a voltmeter at wall all valves on one transformer or outlet. Verify power across low voltage (1) dispensing transformer leads on transformer. If 24 volts are tower. defective. present ON and OFF Toggle Switch is defective. Replace. Problem occurs at Dispensing Verify Main Power Supply and power only one (1) tower’s ON and at Transformer Leads replace ON and dispensing valve. OFF is Switch OFF Switch if operative. defective. Poor connection Trace wiring on defective valve and on valve Wire reconnect any loose wires. Clean and Harness. reconnect any corroded connections. Portion Control Replace the problem valve Portion Timer Control Timer with a known Operative inoperative. Timer. If valve then operates, Portion Control Timer was defective. Replace. Selection Replace defective Portion Control Switch Timer with operative Timer. If Valves inoperative. still will not activate, Selection Panel is defective. Replace Selection Switch. Poor connection Examine Contact Clips on Selection at Contact Clips Panel and ensure proper contact on Selection between Portion Control Timer and Panel (with Contact Clips. Portion Control Timer). Valve will not shut Moisture on Remove top cover from Dispensing OFF. Portion Control Tower. Remove all moisture from Timer or Portion Control Timer and Contacts. Contact Clips. Portion Control Turn Portion Control Adjustment Timer Screws on defective valve Adjustment counterclockwise 10 complete turns. If Screw turned valve shuts off when selection is beyond control pressed, readjust for proper portions. limit. Note: Several revolutions may be necessary to bring control back into range. Portion Control Verify above probables are not the Timer defective. problem. Push ON/OFF Switch for Dispensing Tower to the OFF position. If valve ceases to dispense when pushed to ON position, Portion Control Timer is defective. Replace. Selection Panel Push ON/OF Switch for dispensing defective. tower to the OFF position. If valve ceases and then continues to dispense when switch is pushed in ON position, Selection Panel is defective. Replace.

Part Number STH12 9/10 117 Probable Qualifier Cause Corrective Action No water or insufficient water in finished drinks (continued) Foaming of finished Nozzles, Syrup Remove and clean Nozzle products. Tube Diffusers Assemblies and reassemble. dirty. Warm drinks. Refer to Troubleshooting “Refrigeration System” under Warm drinks. Incorrect Verify pressure supplied to sugar base pressure on products is at 60 psi (4.2 kg/cm2). syrup. Adjust Medium Pressure Regulator if necessary. Verify pressure supplied to diet product is at 15 psi (1.1 kg/cm2). Adjust Low Pressure Regulator if necessary. Note: Ensure the Low Pressure Supply Line has not mistakenly been switched for a Medium Pressure Supply Line on the diet tank. Change-over Verify valve Medium to Low Pressure Valve Medium is in the Low Pressure position for diet or Low Pressure products. is in the wrong position.

Air or CO2 gas Replace empty Syrup Tank. Dispense in syrup line. Syrup from valve until consistent flow is achieved and product stabilizes. If evidence of air is still entering line, replace Liquid Disconnect which is allowing air to be drawn into syrup supply. Flake ice. Only cube ice should be used for carbonated beverages. Improper Ensure carbonated water flow is adjustment of properly set (5 oz. in 4 seconds valve. standard valve, 10 oz in 4 seconds Fast Flow valve). Ensure Brix is properly set. Adjust as necessary. Unit totally Power failure, Check Circuit Breaker. Reset. inoperative; all all power to Examine Time Delay, replace if electrical switches system is OFF, necessary. in the ON position. or Fuse/Circuit Breaker is “open”.

118 Part Number STH12 9/10 Electrical System

Probable Qualifier Cause Corrective Action Fuse/Circuit Short Circuit or Push Toggle Switches labeled carbonator Breaker is overload within and circulator to the OFF position. Push the open. unit. Toggle Switches for Booster Pump, Air Compressor, Agitator and Refrigeration to the OFF position. Replace fuse(s) and reset circuit breaker. Push the Toggle Switches ON in the following sequence as labeled below, to locate short or overload within unit, waiting momentarily between steps. *Agitator *Refrigeration *Carbonator A and/or B *Circulator A and/or B (after carbonator Motor Cycles OFF) *Booster Pump *Air Compressor. Push the Agitator Toggle Switch in the ON position. If the fuse/circuit breaker opens, the trouble is in the Agitator Motor Circuit. This Circuit must be checked for shorts and/or overload. If the fuse/circuit breaker does not open after running about 1 minute, the problem is not in the Agitator Motor Circuit. Push the Refrigeration Toggle Switch in the ON position. If the fuses/circuit breaker opens, the trouble is in the Refrigeration Circuit. Refer to wiring diagram for possible faulty components. Push the carbonator Toggle Switch A to the ON position. Draw Carbonated Water from the Dispensing valve until Pump cycles. If the fuse/circuit breaker opens, the trouble is in the carbonator Circuit. Refer to wiring diagram for possible faulty components. Push the carbonator Toggle Switch B to the ON position. Follow procedure above for carbonator A. Push the Circulator Toggle Switch A to the ON position. If fuse/circuit breaker opens, the trouble is in the Circulator Circuit. Refer to wiring diagram for possible faulty components. Push the Circulator Toggle Switch B to the ON position. Follow procedure above for Circulator A. Push the Booster Pump Toggle Switch to the ON position (allow unit to cycle). If fuse/circuit breaker opens, the trouble is in the Booster Pump Circuit. Refer to wiring diagram for possible faulty components. Push the Air Compressor Toggle Switch to the ON position. (Allow unit to cycle). If fuse/circuit breaker opens, the trouble is in the Air Compressor Circuit. Refer to wiring diagram for possible faulty components. Important Note: Worn out Circuit Breakers or low voltage are frequently responsible for shorts and overloads. Contact service agent to examine possible defective Circuit Breakers or low voltage.

Part Number STH12 9/10 119 Refrigeration System Until repairs can be made on unit with no Ice Bank, push Refrigeration and Agitator Switch to the OFF position and ice down Bath using ice from Ice Maker.

Probable Qualifier Cause Corrective Action Warm drinks (carbonated water temperature over 40°F [5°C]) Compressor Water Bath Remove tope cover from Remote operates but no ice Feeder Valve Refrigeration Unit. Verify if water level present at water inoperative (not is considerably below Stand Pipe. If bath. enough water in so, Water Make-Up valve is bath). inoperative. Remove, disassemble and clean out valve. Replace, refill Bath and allow carbonator to cycle while inspecting valve to ensure proper operation. Replace if necessary. Water leak Remove top cover from Remote inside bath. Refrigeration Unit. Inspect Water Bath at Stand Pipe. If considerable water is observed running over and out the drain, there is a water leak inside Bath. The leak causes the Ice Bank to melt as fast as it’s formed. Drain Bath to located the leak, repair and refill bath. Fan or Motor Examine Fan and Motor on Air Cooled inoperative (air Units at Condenser. If either are found cooled units). to be inoperative while compressor is running, replace inoperative fan or motor. Caution: Inoperative Fan and Motor can cause short cycling of compressor. Compressor Condenser For Air Cooled Units, clean the operates but no ice restricted. Condenser removing all dust and lint. present at water On Water Cooled Units: Using a bath. thermometer verify temperature at water discharge line. If operating outside of the 95°F (35°C) to 105°F (41°C) range, adjust Water Modulating valve, replace. Caution: Restricted Condenser can cause short cycling of compressor. Excessively Verify the Refrigeration Unit is warm room. operating in a well ventilated area and that there are no obstructions blocking Condenser. If so, remove obstructions if inoperative. Lack of Examine Sight Glass. If bubbles Refrigerant appear while compressor is operating Charge. system is low on charge. Refer to Serial Plate for proper refrigeration charge. Defective If no bubbles appear in Sight Glass Expansion then examine suction line, frost on the valve. suction line is a sign of defective Expansion valve. Replace if inoperative.

120 Part Number STH12 9/10 Probable Qualifier Cause Corrective Action Warm drinks (carbonated water temperature over 40°F [5°C]) (continued) Compressor Defective Remove top cover from Remote operates with Ice Agitator Motor Refrigeration Unit. Examine the present at water Assembly. Agitator Motor Assembly, ensure bath. propeller is secured to Agitator and that the Agitator Switch is in the ON position, allowing the water in Bath to be agitated across the cooling coils. If Motor or Propeller is inoperative, replace. Malfunctioning If ice is present on Evaporator Coil of Circulating and Agitator Motor Assembly is System. operating the Refrigeration System is functioning. However, the Circulating System may not be functioning. Refer to Troubleshooting “Circulating System”. Caution: Always make certain that proper line voltage is present. Compressor won’t Defective Check to ensure Refrigeration Switch operate and no ice Switch. is in the ON position. at water bath. Fuse/Circuit Locate Circuit Breaker box and Breaker open. identify proper breaker for Remote Refrigeration Unit. Ensure it is in the ON position by switching OFF and then ON again. If breaker will not reset, refer to Troubleshooting “Electrical System”. Time Delay Inspect Time Delay Fuses at the wall Fuse burned quick shut-off panel. One of the fuses out. may be burned out causing half the unit to shut down. If this is suspected replace all of the fuses. Defective High Examine High Pressure Control to Pressure ensure wire leads are securely Control. attached to terminals. If trouble is suspected with control, replace. Defective Ice Remove Electrical Access Panel and Bank Control. using a voltmeter across the Ice Bank Control, verify control is in the “closed” position. If control is found to be in the “open” position, that Control should be replaced. Defective Remove Electrical Access Panel. Use Contactor. a voltmeter across Contactor Coil. If current exists across Coil, and Contactor remains “open”, Contactor is defective. Replace. Defective Relay Examine Relay/Capacitor/Overload to or Defective ensure wire leads are securely Capacitor or attached to terminals. Replace any Defective faulty components. Overload. Defective If after checking each of the above compressor. items, you still experience problems, test compressor for possible defects or grounding.

Part Number STH12 9/10 121 Probable Qualifier Cause Corrective Action No carbonated water at any of the dispensing valves

CO2 gas is present Malfunctioning If CO2 gas is present at the at dispensing of Carbonating Dispensing Valves and there is no valves but no System. water, the problem is in the Carbonated Water. Carbonated Water System. Refer to Troubleshooting “Carbonated Water System”.

No CO2 Gas or In a “freeze up” situation, push water present at Refrigeration and Agitator Toggle dispensing valve. Switches to the OFF position. Drain water from Bath. Pour lukewarm (never hot) water over the Product Coils until thawed. Ice down Water Bath using ice from Ice Maker until further repairs can be made. Defective Examine the Agitator Motor Assembly. Agitator. Ensure Propeller is operating and secured to Agitator and that the Agitator Toggle Switch is in the ON position. If Motor is inoperative, replace. Defective Ice Remove Electrical Access Panel. Use Bank Control. a voltmeter across the Ice Bank Control. Verify Control is in the “open” position. If Control is stuck in the “closed” position, the unit will “freeze up”. Replace Control if necessary. If unit builds and Ice Bank to the point of extending into stainless steel coils, the Ice Bank Control must be replaced. On units equipped Defective Use a voltmeter across Contactor with the “Red” Contactor. Coil. If no current is present across Refrigeration Coil, but Contactor remains “closed”, Warning Light. Contactor is defective. Replace defective Contactor. Defective When the Refrigeration Warning Light Primary Ice illuminates, the Primary Ice Bank Bank Control. Control is defective and should be replaced. The Secondary Control operates the Compressor until the Primary Control is replaced. Refrigeration Note: When the Refrigeration Warning Light Compressor cycles ON, Warning Light cycles ON and OFF will turn OFF. When the Compressor with Compressor. cycles OFF the light will illuminate.

122 Part Number STH12 9/10 Syrup System

Probable Qualifier Cause Corrective Action No syrup or Syrup Tank is Replace Syrup tank and purge air out insufficient syrup in empty. of Dispensing Valves affected, until finished drink. steady syrup supply is dispensed. Kinked Syrup Examine all exposed Syrup Lines and lines. relieve any sharp bends or kinks. Note: Observe all independent lines from Syrup Tank to Filters for kinks or bends. Correct as needed. Low Pressure Low Pressure Regulator controls the Regulator pressure to diet beverages. Verify inoperative. pressure is set at 15 psi (1.1 kg/cm2). To increase, adjust clockwise, to decrease, adjust counterclockwise. If regulator does not respond, repair or replace regulator. Medium Medium Regulator controls the Pressure pressure applied to the sugar based Regulator beverages. Verify pressure is set at 60 inoperative. psi (4.2 kg/cm2). To increase, adjust clockwise. To decrease, adjust counterclockwise. If regulator does not respond, repair or replace regulator. Check Relief Disengage Gas Quick Disconnect on valve restricted. suspected restricted flavor at Syrup Tank. Depress Poppet valve on bottom side of Gas Disconnect. If a low or poor pressure supply is apparent, replace Check Relief valve. Gas/Syrup Tank Replace Syrup Tank. If this solves the Plug Valves problem, tag defective tank so bottler inoperative. can make necessary repairs. (It is extremely rare to have inoperative Tank Plug Valves.) Quick Disengage Quick Disconnects on one Disconnects Tank at a time. Rinse and clean with (Gas or Syrup) warm water. Lubricate the O-ring on not fully the Syrup Tank Plug with water. engaged on Reattach the Quick Disconnects to the Syrup Tank. appropriate Syrup Tank Plug. Gas Quick Disconnects are gray or have two key slots. Syrup Quick Disconnects are black or have three key slots. Quick Gas Quick Disconnects: Open the Disconnect Relief valve on the top of the syrup Valves or Tank tank lid. If the Gas Quick Disconnect is Jumper opening properly, pressure should inoperative. continue to bleed from the Gas Relief valve. If not, replace Gas Quick Disconnect. Syrup Quick Disconnects: Open the Dispensing valve (Syrup Side only) for appropriate flavor. Dispensing syrup for at least 10 seconds. If CO2/Air pockets appear in syrup, replace Syrup Quick Disconnect. If syrup flow is inadequate or fluctuates during 10 seconds of flow, replace Syrup Quick Disconnects.

Part Number STH12 9/10 123 Probable Qualifier Cause Corrective Action No syrup of Gas leak at Use a soap solution around all insufficient Syrup in Syrup System. connections, starting from the Low finished drink. and Medium Pressure Regulators to (continued) the base of the Syrup Tank Plugs, observe Quick Disconnects, Tank Cap and Gasket, Tank Plugs and Syrup Tank O-rings for leaks. Repair and replace if necessary. Syrup Filter Disengage Syrup Quick Disconnect restricted. from the appropriate Syrup Tank. Relieve pressure at the corresponding Dispensing valve. Remove the Screw clamp and the Filter Screen. Wash the Filter Screen with warm water and reassemble. Frozen Syrup Refer to Troubleshooting Coil. “Refrigeration System” under No carbonated water at any of the dispensing valves (Freeze up). Dispensing Refer to Troubleshooting “Dispensing valve Valve and Tower” under No syrup or inoperative. insufficient syrup. Drinks too sweet. Low Pressure Verify Low Pressure Regulator set at Regulator 15 psi (1.1 kg/cm2). Adjust Regulator inoperative. if necessary. If Regulator will not respond, repair or replace Regulator. Medium Verify Medium Pressure Regulator set Pressure at 60 psi (4.2 kg/cm2). Adjust Regulator Regulator if necessary. If Regulator inoperative. will not respond, repair or replace Regulator. Dispensing Refer to Troubleshooting “Dispensing valve Valve and Tower” under Too much inoperative. syrup in finished drink. Peculiar taste. Contaminated Replace tank and sanitize the system. Syrup.

124 Part Number STH12 9/10 Water Booster System

Probable Qualifier Cause Corrective Action Low or no water pressure at noncarbonated beverages Water Booster will No power to Verify Toggle Switch for “Booster not cycle ON. Both Water Booster Pump” is in the ON position and main the pressurized Pump. power supply is ON. filter water and filtered water Pressure Switch Remove Pressure Switch Cover and pressure register defective. use a voltmeter across terminals to 55 psi (3.8 bar). determine whether “open” or “closed”. If in the “open” position, replace Switch. Motor defective. If Motor will not operate, verify voltage across Motor Terminals with a voltmeter. If voltage reads from 110 to 120 VAC, the Motor is defective and should be replaced. Pump frozen. Loosen the Coupling Clamp with a flat-blade screwdriver and disengage pump from Motor. Turn the Coupling key by hand, in back of pump. If pump shaft will not spin freely, Pump is defective and must be replaced. Water Booster Water supply Examine Shut-off Valve to “Plain cycles ON and OFF shut-off after Water to Unit” and “Water to Coffee and pressurized Booster Machine” and ensure both are in the Filtered Water System. ON position. Gauged readings range between Frozen Water Refer to Troubleshooting 65 psi (4.6 kg/cm2) Coil. “Refrigeration System” under No to 85 psi carbonated water at any of the (6.0 kg/cm2). dispensing valves (freeze up). Pump and Motor Water supply to Examine the Shut-off Valve to Booster will not cycle OFF. Booster Pump Pump and ensure valve is in the ON shut OFF. position. Restricted Observe Filter Water Pressure Gauge. Water Filter. If pressure drops total of 40 psi (2.8 bar) or more when pump cycles ON. Replace filter. Leak on Booster Locate water leaks on system and System Pump repair. Remove Pump Strainer at Strainer Brass Booster Pump, flush screen obstructed. with water to clean. Reassemble and position in place. Replace screen if necessary. Pump Coupling Using a flat-blade screwdriver, loosen Key defective. Coupling Clamp and disengage Pump from Motor. Examine Coupling Key, if rounded off on either end, replace. Pump defective. Examine Pressurized Filter Water Pressure Gauge. If Pump and Motor continue to operate but fail to build up to 85 psi (6.0 kg/cm2) in order to cut off, pump is defective. Replace Pump. Pressure Switch Observe Pressurized Filtered Water improperly Pressure Gauge to ensure proper adjusted or cycle ON at 65 psi (4.6 kg/cm2) and defective. cycle OFF at 85 psi (6.0 kg/cm2). Refer to instructions found under Switch Cover for adjusting. If Switch does not respond to adjustment, replace switch.

Part Number STH12 9/10 125 Probable Qualifier Cause Corrective Action Low or no water pressure at noncarbonated beverages (continued) Pump and Motor Leak on Booster Locate water leaks on system and cycles ON and OFF System. repair. excessively. Check valve Observe Filtered Water Pressure defective. Gauge. If pressure rises and drops with Pressurized Filtered Water Gauge, the Water Inlet Check valve on Pump is defective. Replace Check valve. Pressure Switch Observe Pressurized Filtered Water improperly Pressure Gauge to ensure proper adjusted or cycle ON at 65 psi (4.6 kg/cm2) and defective. cycle OFF at 85 psi (6.0 kg/cm2). Refer to instructions found under Switch Cover for adjusting. If Switch will not respond to adjustment, replace switch. Accumulator Push Toggle Switch and Water Tank pressure Shut-off Valve to Booster Pump to the set improperly. OFF position. Activate Plain Water button until water flow ceases. Using a tire gauge verify a 60 psi (4.2 kg/cm2) charge on Tank. Recharge if necessary. Note: When charging Accumulator Tank, only AIR should be used. Accumulator Repeat procedures above. If water is Tank bladder found inside Air Chamber when ruptured. verifying pressure charge, bladder is ruptured. Replace Accumulator Tank. Motor Using a flat-blade screwdriver, loosen overheating. Coupling Clamp and disengage Pump from Motor. Turn Coupling Key by hand, in back of Pump. If Coupling Key is difficult to turn, it may cause defective Motor to overheat. Replace Motor if necessary. Peculiar taste in Water Filter Replace Filter. Refer to Non-carbonated contaminated. Troubleshooting “Water Filter System” beverages. under Peculiar taste. Accumulator Replace Accumulator Tank. Refer to Tank bladder “Pump and Motor Cycle ON and OFF ruptured. excessively” Accumulator Tank bladder ruptured. Malfunction of Refer to Troubleshooting “Carbonated Carbonated Water System” under Peculiar taste, Water System. Probable Cause: Back Flow Preventer leaking.

126 Part Number STH12 9/10 Water Filter System Until repairs can be made on the Water Filter, place valve handle into “filter By-pass” position.

Probable Qualifier Cause Corrective Action Carbon particles in Water By-pass Verify By-pass valve handle is in the finished drink. valve is not in Filter “operating” position. If particles the “filtering” continue to appear, filter must be position. serviced. Defective or Verify O-rings are not twisted or damaged seal nicked. Verify Cartridge is solid and on Filter free of cracks. Replace if necessary. Cartridge. Filter Cartridge Remove Cartridge from Canister. installed without Clean Canister Lid and Shell Inlet Seal. assembly. Replace with new Filter Cartridge, making sure to remove Water Inlet Seal. Defective Refer to Troubleshooting “Carbonated carbonator Water System”. Pump. Defective Refer to Troubleshooting “Circulating Circulating System”. Pump. Carbonator and Restricted Observe Filter Water Pressure Gauge. Water Booster Water Filter. If pressure drops at total of 40 psi (2.8 Pump extremely bar) or more when pump cycles ON, noisy. replace filter. Filter Cartridge Removed Cartridge from Canister. installed without Clean Canister Lid and Shell removing Water Assembly. Install new Filter Cartridge, Inlet Seal. making sure to remove Cartridge Inlet Seal. Water supply to Verify water supply is turned ON to Filer restricted. unit. Refer to Troubleshooting “Carbonated Water System” and “Water Booster System” for additional solutions. Peculiar taste. Water Filter Place Filter valve into “Filter By-pass” contaminated. position. Replace Filter and reposition valve handle to “filter operating” position.

Part Number STH12 9/10 127 When the Brix is OFF Air Compressor

70 psi (4.8 bar) ON 90 psi (6.2 bar) OFF

Filtered Water Pressure Maximum Efficiency 55 psi (3.8 bar)

Service Filters

CO2 High Pressure

90 psi (6.2 bar)

Drink Temperature Below 39°F (3.9°C)

128 Part Number STH12 9/10 Bag-In-Box Usage Medium Syrup Pressure

60 psi (4.1 bar)

Syrup Tank Usage Low Syrup Medium Syrup Pressure Pressure

15 psi (1.0 bar) 60 psi (4.1 bar)

Pressurized Filtered Water Pressure (Water Booster)

65 psi (4.5 bar) ON 85 psi (5.9 bar) OFF

Part Number STH12 9/10 129 Probable Problem Cause Solution Drink too warm. Refrigeration Turn ON refrigeration switch. switch OFF. Condenser dirty. Have condenser cleaned. Condenser Remove any objects blocking the air obstructed. flow in or out of the unit. Circulator Turn ON circulator switch and allow switch OFF. time for drinks to cool. Note: If service is required, you can continue to dispense cold drinks by completing following this procedure. 1. Turn OFF the compressor switch and agitator switch. 2. Drain the water from the water bath. Reinstall the grey plastic over-flow pipe. 3. Fill water bath with ice from the ice machine. 4. Monitor frequently. Refill as needed.

Not enough CO2 Shut-off Open Shut-off Valve. carbonation. Valve OFF.

CO2 cylinder Switch over to a new cylinder and empty. dispense carbonated water until carbonation returns. Product foaming. Dirty or sanitizer Clean or replace nozzles. soaked. Warm drinks. See “Drink too warm” under Problem above. No syrup Empty syrup Replace syrup container. dispensed. container. Air Compressor Turn ON and plug-in the Air is OFF. Compressor. Change-over Position switch totally on either air or valve centered. CO2. No carbonated Carbonator Turn ON carbonator switch. water dispensed. turned OFF. Water supply Turn ON water to the system. turned OFF. Product has an off Dirty nozzles. Clean or replace nozzles. taste. Out of date Replace with fresh syrup. syrup. Saturated water Replace water filters. filters.

130 Part Number STH12 9/10 Component Check Procedures

Test Procedures: MPC 64A Timer/ Selection Pad MPC 64 A Timers can be placed in the test mode as follows: 1. Flip power switch off. 2. While depressing “CAL” button on selection pad, flip power switch back on. 3. Release “CAL” button when red LED comes on. Faucets will energize for 2 seconds, each in sequence, starting with faucet #1 (far left). Timer is now in the Test Mode. To stop faucets use one of two procedures: A. Turn power switch off. This will save the programmed times, Use this procedure for testing or sanitizing. B. Push “CAL” button. All programmed times for all stations will go to factory default times. Default times are: Size #1 1 - 1.5 seconds Size #2 4 - 4.5 seconds Size #3 6 - 6.5 seconds Size #4 8 - 8.5 seconds

PIN IDENTIFICATION J-7 = Valve 1 J-10 = Valve 4 J-8 = Valve 2 J-11 = Valve 5 J-9 = Valve 3 J-12 = Valve 6 Check for 24 Volts at each solenoid cable connector, J-7 through J-12, with cables removed. With cables on, check for 24 VAC across solenoids at dispensing valve while dispensing respective valve. J-15 Power to Valves 1,2,3. J-20 Power to Valves 4,5,6 and microprocessor. Loss of power at J-15 results on loss of power to valves 1,2,3. Loss of power at J-20 results on loss of power to microprocessor — no valves will work.

Part Number STH12 9/10 131 J-16 Station & Sizes Revision May 28, 2003 #1 Stop/Fill #2 Large #3 Medium #4 Small #5 Valve 6 (or nothing on a 5 Valve tower) #6 Valve 5 #7 Valve 4 #8 Valve 3 #9 Valve 2 #10 Valve 1 #11 Blank #12 Extra Large Use a jumper wire to make these connections to determine if timer is functioning properly. A. Jump pin 1 to pin 5,6,7,8,9,10. Appropriate Valve should energize as long as pins are jumped. B. Jump pin 12 to pin 5,6,7,8,9,10. Valves should pour EXTRA LARGE. C. Jump pin 2 to pin 5,6,7,8,9,10. Valves should pour LARGE. D. Jump pin 3 to pin 5,6,7,8,9,10. Valve should pour MEDIUM. E. Jump pin 4 to pin 5,6.7,8,9,10. Valves should pour SMALL.

J-17 CALIBRATION BUTTON & LIGHT If microprocessor does not go into calibration, remove connector at J-17. With jumper wire, jump 1st and 2nd pins on left 3 times in less than 3 seconds. Replace connector. Calibration light should be on (microprocessor will be in the calibration mode). White & White = calibration button. Red & Black = calibration light. If CAL light does not come on LED is burned out — replace keyboard.

132 Part Number STH12 9/10 Dual Transformers *DUAL TRANSFORMERS MUST BE WIRED IN PHASE* To determine whether transformers are wired in phase: With power on, take voltage reading at HOT wire of each transformer. Reading should be 0VOLTS*. If you read voltage, transformers are out of phase. The positions of the wires on one transformer must be switched. *Black to White = 24V AC +/-10% Black to Black = 0 V AC

Part Number STH12 9/10 133 New MPC84A Portion Control Board A new portion control board, the MPC84A, has been developed to improve the performance and maintain the functions and features of the previous MPC64A. In addition this PC board has passed the very demanding EMC testing (radio frequency emissions and interference) for European CE approval, at the UL labs. The MPC64A has been phased out as of 6/96 and only the MPC84A will be used on new production and service. The new board is the same size, same mounting locations, and uses the same connectors as the previous board. This article is to explain some minor differences and features which can be used to your advantage. The major difference is with the same size board, the MPC84A can control up to eight stations (dispensing valves), with up to four sizes per station. The MPC64A could only control up to six stations. The first drawing depicts the connectors on the MPC64A. The second drawing depicts the connectors on the MPC84A. The Power connectors J15 and J20 (24VAC) are the same. The Keyboard connectors J16 for touchpad sizes and J17 for calibration touchpad and light, are the same. The MPC 84A adds one more two pin keyboard connector J1. For an eight station tower, this connector, along with a separate two wire cable to the proper Keyboard, provides the two extra stations. The five pin valve connectors, J7 to J12 on the MPC64A are changed to two pin connectors, J7 to J14 on the MPC84A. These valve connectors are not polarized (does not matter how you connect the two pins) except when the valve has a WATER or SODA harness. The calibrating functions of the new portion control board are the same as the old board.

134 Part Number STH12 9/10 5 1 LD6 J12 J20 LD5 J11 J17 LD4 J10 P/N 213373 Model MPC84A Model J16 11215 LD3 J9 LD2 J8 OLD LD1 J7 15 J15 3 1

MPC64A Connectors

Part Number STH12 9/10 135 5 1 LD8 J14 J20 LD7 J13 LD6 J12 J17 LD5 P/N 216162 Model MPC84A J11 J16 11215 LD4 J1 J10 1 LD3 J9 LD2 J8 NEW LD1 J7 1 J15 3 1

MPC84A Connectors

136 Part Number STH12 9/10 FEATURES OF THE NEW MPC84A • Can control up to 8 stations (valves). • Hardware isolation and zero switching to minimize electrical problems. • Software improvements to noise.

CALIBRATION INSTRUCTIONS (same as MPC64A) 1. To enter calibrate mode, press calibrate switch three times in less than three seconds, and red calibrate light will illuminate. 2. Place volume cup under nozzle of the valve to be calibrated. 3. Press appropriate size switch and fill volume cup to a point just short of the calibration mark on the volume cup. 4. Let foam settle, jog size switch until liquid reaches the appropriate calibration mark on the volume cup. 5. To calibrate additional sizes, repeat steps 2 thru 4. Special Features when in the Calibrate Mode • To obtain an accurate 4.0 seconds pour from any valve, press its associated STOP-FILL switch once. • To adjust all stations for the same size times, press any station STOP-FILL switch twice in less than two seconds, then repeat steps 2 thru 4 at this station. The resulting times will be copied to all stations when calibrate mode is exited.

Important Use this mode, one size adjusts all, only for an emergency (no time to adjust at all) and temporarily. Each valve flow rate, ratio, and flow regulators would have to be perfectly identical for each valve to duplicate the same volume in the same portion time.

6. To exit the calibrate mode, press calibrate switch once and red calibrate light will go out.

Part Number STH12 9/10 137 NOTE: The new MPC84A does not have factory default set times, like the MPC64A does. If a portion size or station looses its calibration, the time(s) will go back to minimum (.5 seconds). This means you can check the total operation of the MPC84A by initiating the TEST/CYCLING option, without changing the calibration times, which could happen with the old MPC64A.

TEST / CYCLING OPTION 1. Turn the power OFF to the tower/portion control. 2. Hold the calibrate switch ON and turn the power ON at the same time. 3. The calibrate LED will illuminate, let OFF the calibrate switch. 4. The dispensing valves will sequence from left to right, valve #1 ON 4 seconds, then valve #2 ON 4 seconds etc., continuously repeating, until you turn the power OFF, or press the calibrate button once. This allows you to see that all valves work. The keyboard or valve harness would have to be at fault, if all the circuit board LEDs (LD1-LD8) illuminate properly, and a valve or valves do not dispense. Secondly, this sequencing can be used to purge or sanitize the system automatically. If you want more than one valve at a time to dispense automatically for 4.0 seconds, just press station number for number of valves simultaneously. That is, when in the cycling sequence press station #2 (counting left to right) for two valves simultaneous, meaning valve #1 and #2 will dispense for 4 seconds, then #3 and #4, etc., continuously repeating until you turn the power OFF or press the calibrate button once. If you press the station #3, then 1 and 2 and 3 stations will dispense simultaneously, then 4 and 5 and 6, etc. This allows you to have as many valves purging/sanitizing, as the drain will allow without overflowing.

RETROFITTING When using the MPC84A as a service replacement part, only the valve connectors have to be watched. The power connectors and the keyboard connectors

138 Part Number STH12 9/10 are the same and go in the same places. The older 5 pin valve connectors will fit on the new board, as long as you observe that the 5 pin connector goes on with the two wires aligned to the two pins on the new board. In case of the WATER and SODA switch harness, it must be polarized, so reverse (connector moved 180°) if WATER or SODA does not pour.

Part Number STH12 9/10 139 MOVs Field Testing Metal Oxide Varistors installed on the water and carbonated water buttons on, McDonalds style dispensing towers, are designed to completely absorb electrical spikes keeping them out of the microprocessor circuit eliminating complaints of: • Not holding calibration • Valves flowing by themselves • Two valves coming on at the same time, etc. Multiplex has designed a field test procedure that will expose a faulty MOV. This procedure will also work on the older style capacitors. The field test procedure: Depress separately both the water and soda water button rapidly 5 - 6 times. While doing this, watch all other valves. If you notice any dripping or any other valve trying to energize, the MOVs need to be replaced. NOTE: Factory installed MOVs have heat shrink tubes on each terminal leg. Always check to make sure that heat shrink has not slipped down and is insulating the MOV leg inside the terminal connector.

Insulative Tubing MOV BLK

COM GRN/WHT NO NC RED

140 Part Number STH12 9/10 Test Procedures: MPC84C Timer/ Selection Board MPC 84B timers can be placed in the test mode as follows: 1. Flip power switch OFF. 2. While depressing CAL button on selection pad, flip power switch ON. 3. Release CAL button when red LED comes on. Faucets will energize for 4 seconds, each in sequence, starting with faucet #1 (far left). Timer is now in the Test Mode. To stop faucets, use one of two procedures. • Turn power switch off. This will save the programmed times. Use this procedure for testing or sanitizing. • Push CAL. All programmed times will be saved.

PIN IDENTIFICATION J-1 = Valve 1 J-6 = Valve 6 J-2 = Valve 2 J-7 = Valve 7 J-3 = Valve 3 J-8 = Valve 8 J-4 = Valve 4 J-9 = Soda J-5 = Valve 5 J-10 = Water Check for 24 Volts at each solenoid cable connector, J-1 through J-8, with cables removed. With cables on, check for 24VAC across solenoids at dispensing valve while dispensing respective valve. J-15 Power to valves 1, 2, 3, 4 and microprocessor J-20 Power to valves 5, 6, 7, 8 and microprocessor Loss of power at J-15 results in loss of power to valves 1, 2, 3, and 4. Loss of power at J-20 results in loss of power to valves 5, 6, 7, and 8.

Part Number STH12 9/10 141 J-16 Station and Sizes: #1 Stop/Fill #2 Large #3 Medium #4 Small #5 Valve 6 #6 Valve 5 #7 Valve 4 #8 Valve 3 #9 Valve 2 #10 Valve 1 #11 Blank #12 Extra Large

J-18 Stations #1 Valve 7 #2 Valve 8

J-19 Stations and Sizes: #1 Blank #2 Valve 2 or 4 Flavor 1 #3 Valve 2 or 4 Flavor 2 #4 No wire #5 Kid Size (Smallest)

Use a jumper wire to make these connections to determine if timer is functioning properly. 1. Jump pin 1 on J-16 to pin 5, 6, 7, 8, 9, 10, and pins 1 and 2 on J-18. Appropriate valve should energize as long as pins are jumped. 2. Jump pin 12 on J-16 to 5, 6, 7, 8, 9, 10, and pins 1 and 2 on J-18. Valves should pour Extra Large. 3. Jump pin 2 on J-16 to 5, 6, 7, 8, 9, 10, and pins 1 and 2 on J-18. Valves should pour Large. 4. Jump pin 3 on J-16 to 5, 6, 7, 8, 9, 10, and pins 1 and 2 on J-18. Valves should pour Medium. 5. Jump pin 4 on J-16 to 5, 6, 7, 8, 9, 10, and pins 1 and 2 on J-18. Valves should pour Small. 6. Jump pin 5 on J-19 to J-16 pins 5, 6, 7, 8, 9, 10, and pins 1 and 2 on J-18. Valves should pour Kid Size.

142 Part Number STH12 9/10 J-17 CALIBRATION BUTTON AND LIGHT If microprocessor does not go into calibration, remove connector at J-17. With jumper wire, jump 1st and 2nd pins on left 3 times in less than 3 seconds. Replace connector. Calibration light should be on (microprocessor will be in the calibration mode). White & white = calibration button. Red & black = calibration light. If CAL light does not come on, LED is burned out — replace keyboard.

SECONDARY BOARD PIN IDENTIFICATION J-1 = Valve 2 Flavor 1 J-2 = Valve 2 Flavor 2 J-3 = Valve 4 Flavor 1 J-4 = Valve 4 Flavor 2 Use a jumper wire to make these connections to determine if timer is functioning properly. 1. Jump pin 2 or 3 on J-19 and pin 7 or 9 on J-16. Then jump pin 1 on J-16 to pin 7 or 9 on J-16. Appropriate valve should energize as long as pins are jumped. 2. Jump pin 2 or 3 on J-19 and pin 7 or 9 on J-16. Then jump pin 12 on J-16 to pin 7 or 9 on J-16. Appropriate valve should pour Extra Large. 3. Jump pin 2 or 3 on J-19 and pin 7 or 9 on J-16. Then jump pin 2 on J-16 to pin 7 or 9 on J-16. Appropriate valve should pour Large. 4. Jump pin 2 or 3 on J-19 to pin 7 or 9 on J-16. Then jump pin 3 on J-16 to pin 7 or 9 on J-16. Appropriate valve should pour Medium. 5. Jump pin 2 or 3 on J-19 to pin 7 or 9 on J-16. Then jump pin 4 on J-16 to pin 7 or 9 on J-16. Appropriate valve should pour Small. 6. Jump pin 2 or 3 on J-19 to pin 5 on J-19. Then jump pin 5 on J-19 to pin 7 or 9 on J-16. Appropriate valve should pour Kid Size.

Part Number STH12 9/10 143 Back-flow Preventer Maintenance The integral carbonator in this unit is equipped with a back-flow preventer designed to protect the potable water supply from CO2 contamination.

Important The back-flow preventer must be checked at least once every year to confirm that it is functioning properly.

1. Shut OFF power to unit. 2. Shut OFF potable water supply to unit. Do not shut OFF CO2 supply. 3. Remove top cover panel of unit and disconnect inlet fitting from back-flow preventer. NOTE: The carbonator tank is still pressurized. 4. Observe inlet of backflow preventer #1 check for any discharge. If there is no discharge, #1 check is OK. Proceed to step 5. If there is discharge, proceed to step 6. 5. Disconnect and carefully remove #1 check assembly. Avoid losing any internal parts. 6. Observe inlet of #2 check for any discharge. If there is no discharge, #2 check is OK. Proceed to step 7. If there is discharge, proceed to step 5.

7. Shut OFF CO2 supply and relieve pressure from carbonator tank. 8. Remove back-flow preventer and install new backflow preventer. Turn ON CO2 supply and check for leaks. 9. Check water supply strainer upstream of backflow preventer. Clean out and/or replace as required. 10. Reconnect water lines and turn water supply ON. 11. Turn ON power to unit.

144 Part Number STH12 9/10 Head Pressure Control Valve Multiplex remote systems require head pressure control valves with special settings. Replace defective head pressure control valves only with “original” Multiplex replacement parts.

OPERATION The R404A head pressure control valve is non adjustable. At ambient temperatures of approximately 70°F (21°C) or above, refrigerant flows through the valve from the condenser to the receiver inlet. At temperatures below this (or at higher temperatures if it is raining), the head pressure control dome’s nitrogen charge closes the condenser port and opens the bypass port from the compressor discharge line. In this modulating mode, the valve maintains minimum head pressure by building up liquid in the condenser and bypassing discharge gas directly to the receiver.

DIAGNOSING 1. Determine if the coil is clean. Air passes through the condenser from the bottom up. Verify the coil is clean by looking from the bottom up. Do not look down through the fan. 2. Determine the air temperature entering the remote condenser. 3. Determine if the head pressure is high or low in relationship to the outside temperature. (Refer to the proper “Normal Operating Pressures of Refrigeration Units” in the Charts section.) 4. Determine the temperature of the liquid line entering the receiver by feeling it. This line is normally warm; “body temperature.” 5. Using the information gathered, refer to the chart below. NOTE: A head pressure control valve that will not bypass, will function properly with condenser air temperatures of approximately 70°F (21°C) or above. When the temperature drops below 70°F (21°C), the head pressure control valve fails to bypass and the ice machine malfunctions. Lower ambient conditions can

Part Number STH12 9/10 145 be simulated by rinsing the condenser with cool water during the freeze cycle.

Probable Corrective Condition Cause Measure Discharge Pressure - High Valve stuck Replace Liquid Line Temperature - Hot in bypass valve Discharge Pressure - Low Valve not Replace Liquid Line Temperature - Cold bypassing valve Discharge Pressure - Low Ice Low on Liquid Line Temperature - Hot Machine Charge Low on Verification Charge

FAN CYCLE CONTROL VS. HEAD PRESSURE CONTROL VALVE A fan cycle control cannot be used in place of a head pressure control valve. The fan cycle control is not capable of bypassing the condenser coil and keeping the liquid line temperature and pressure up. This is very apparent when it rains or the outside temperature drops. When it rains or the outside temperature drops, the fan begins to cycle on and off. At first, everything appears normal. But, as it continues raining or getting colder, the fan cycle control can only turn the fan off. All the refrigerant must continue to flow through the condenser coil, being cooled by the rain or low outside temperature. This causes excessive sub-cooling of the refrigerant. As a result, the liquid line temperature and pressure are not maintained for proper operation.

146 Part Number STH12 9/10 Charging Multiplex Remote Refrigeration Unit NOTE: System would have been opened for repairs. Once completed, a vacuum of 500 microns would have been maintained for 1/2 hour. The proper procedure for charging the system includes the reintroduction of all refrigerant that had been recovered before making the repair. 1. Attach charging hose of gauge manifold to liquid valve of the recovery cylinder (if no refrigerant was in the system, and thus, no refrigerant was recovered, attach charging hose to Refrigerant cylinder). Open cylinder valve. 2. Place cylinder on charging scale-zero scale. 3. Open high side valve wheel of gauge manifold. DO NOT ATTEMPT TO CHARGE SYSTEM ON LOW SIDE—CHARGE IN A LIQUID STATE ONLY WITH REFRIGERATION SYSTEM OFF. 4. Allow sufficient time for all refrigerant to transfer from cylinder to refrigeration unit. If necessary, put cylinder into bucket of hot water to increase the internal pressure of the cylinder. 5. System total charge is the net result of: A. Refrigeration Unit charge on nameplate B. Remote line set length X .72 oz./ft. C. 90% of condenser volume (cu. ft.) x Refrigerant (wt./cu ft) NOTE: Refrigerant weight varies with temperature. R-404A weighs 72 lb/cu. ft. @ 32°; 62 lb/cu. ft. @ 95° 6. When all refrigerant has been transferred, close valve wheel of the manifold. 7. Turn refrigeration unit on.

Part Number STH12 9/10 147 Compressor & Remote Condenser

FAN / REMOTE COMPRESSOR CONDENSER REFRIGERATION SYSTEM

OUTPUT TERMINALS ARE COMMON TO COMPRESSOR COMPRESSOR COMPRESSOR OUTPUT TERMINALS WILL NOT GO WILL NOT COME ON ERC OFF ON

CHECK CONNECTORS AND WIRING TO FAN / REMOTE VERIFY KEYPAD/DISPLAY GOOD, CONDENSERCHECK SEE KEYPAD / DISPLAY TROUBLE MOTORS SHOOTING PAGE 7

IF COMPRESSOR COMES ON AND STILL NO COOLING, USE REFRIGERATION TROUBLESHOOTING COMPRESSOR COMPRESSOR WILL STILL NOT WILL STILL NOT GO OFF COME ON CHECK (LIQUID LINE TEMP) AND EVAP OUT TEMP

VERIFY ICE BANK PULL CARB A CONN PROBE TIP #1 IN ICE TO RESET CONDUCTIVE PROBES NO

PULL ICE BANK SHORT ICE BANK YES REPLACE ICE CONN ON ERC, CONNECTOR #3ALL BANK PROBE COMPRESSOR PINS SHOULD GO OFF

REPLACE ICE VERIFY HPCO REPLACE BANK PROBE SWITCH NO HPCO 020002091 CLOSEDSHORT SWITCH CONN 12

ELSE

REPLACE ERC VERIFY VOLTAGE REPLACE ERC CONTROL BD AT COMP OUTPUT NO CONTROL BD 020001985 TERMINALS ON 020001985 ERC

CHECK VERIFY VOLTAGE CONNECTO REPLACE AT CONTACTOR NO RS AND CONTACTOR COIL WIRING TO CONTACTOR COIL

VERIFY PROPER REPLACE VOLTAGE AT YES COMPRESSOR COMPRESSOR

148 Part Number STH12 9/10 Agitator Condenser

AGITATOR

AGITATOR AGITATOR WILL NOT GO WILL NOT OFF WITH COME ON WITH KEYPAD KEYPAD BUTTON / LED BUTTON / LED

VERIFY KEYPAD/DISPLAY GOOD, SEE KEYPAD / DISPLAY TROUBLE SHOOTING PAGE 7

AGITATOR AGITATOR NO/ WILL WILL END STILL NOT STILL NOT GO OFF COME ON

YES YES

REPLACE VERIFY ERC VOLTAGE CONTROL ON ERC BOARD02 AGITATOR 0001985 TERMINALS

IF NO VOLTAGE REPLACE ERC CONTROL BOARD 020001985

END

VERIFY WIRING / CONNECTORS TO AGITATOR MOTOR

REPLACE AGITATOR MOTOR

Part Number STH12 9/10 149 Carbonation System A or B

CARBONATOR SYSTEM A OR B

CARB MOTOR CARB MOTOR DOES NOT DOES NOT TURNON TURNOFF

VERIFY NO “E1” ERRORGOTO FIRSTVERIF PROGRAM MODE 1 CONDUCTIVITY Y PRG “C000” MODE 2 IS SET TO “- 002”FOR BOTH CARB PRESS CARB A AND/OR CARB B PUMPS BUTTON, VERIFY CARB A AND/OR B CONDUCTIVITY PROBES “CX__” X= A OR B

“CX00” “CX11” CARB CARB MOTOR YES / MOTOR YES / SHOULD BE END SHOULD BE END ON OFF

NO NO

VOLTAGE VOLTAGE AT ERC NO AT ERC NO/ AGIT AGIT END OUTPUT OUTPUT TERMINALS TERMINALS

YES YES

REPLACE ERC CHECK ALL WIRES CONTROL AND CONNECTORS BOARD FOR OPEN ON CARB 020001985 TANK WIRING HARNESSCHECK CARB MOTOR

REPLACE ERC CONTROL BOARD 020001985

150 Part Number STH12 9/10 Circulation System A or B

CIRCULATING SYSTEM A OR B

CIRC MOTOR CIRC MOTOR DOES NOT DOES NOT TURNON TURNON

VERIFY NO “E1” ERROR

VERIFY KEYPAD / DISPLAY WORKS, CIRC LED GOES ON AND OFF

VERIFY VOLTAGE AT CIRC OUTPUT TERMINALS ON ERC

CHECK ALL WIRES AND CONNECTORS TO CIRC MOTOR, CHECK CIRC MOTOR

REPLACE KEYPAD / DISPLAY IF BAD 020001986 ORIF WIRES/MOTOR OK, REPLACE ERC BOARD 020001985

Part Number STH12 9/10 151 ERC Control Board, Keypad & Display

ERC CONTROL BOARD AND KEYPAD / DISPLAY

KEYPAD / ERC POWER DISPLAY NOT LED NOT ON WORKING

KEYPAD VERIFY PROPER BUTTON(S) DO VOLTAGE ON NOT RESPOND, ERC TERMINALS RESPECTIVE L1 AND L2 LEDS DO NOT COME ON

TURN POWER POWER ERC OFF THEN ON OFF, THEN ON, TO RESET ERC VERIFY NO COUNTDOWN “PdXX”ON DISPLAY

NO KEYPAD BUTTONS NOW REPLACE WORK ERC CONTROL YES BOARD

DISPLAY SHOWS NO POWER UP COUNTDOWN“PdXX”

YES

REPLACE KEYPAD / DISPLAY 020001986

REPLACE ERC CONTROL BOARD 020001985

IF DISPLAY FLASHES ERRATIC NUMBERS / SYMBOLS, REPLACE KEYPAD / DISPLAY020001986

GENERAL NOTE: FOR DISPLAY PROBLEMS, IF COUNTDOWN OCCURS ON POWER UP, “PdXX”, THEN DISPLAY IS PROBABLY AT FAULT, NOT ERC

152 Part Number STH12 9/10 Programming / Auto Set

COMPRESSOR DOES NOT REACT CARB A AND/OR CARB B MOTOR ONLY A OR B (OR NONE) TO ICE BANK PROBE (SODA & STAYS ON CONSTANTLY WHEN CIRCULATING WATER CHILLER UNITS) OR BEER UNIT RESPECTIVE BUTTON ACTIVATED TEMPERATURE DISPLAYED ON INSTEAD OF STOPPING WHEN CARB KEYPAD, UNIT HAS TWO CIRC DOES NOT REACT TO WATER TANK IS FULL TEMP PROBE SYSTEM

GO INTO PROGRAM MODE 2 AND VERIFY CARB PUMP IF TWO CIRCULATING GO INTO PROGRAM MODE 3 AND SETTINGS SYSTEM UNIT, VERIFY BOTH VERIFY COMPRESSOR CONTROL THERMISTORS ARE GOOD SETTING CORRECT“-003” FOR SODA & CHILLER UNITS(“-1273” FOR BEER UNIT ONLY)

ERC PROGRAM CHECKS ON NO PRESS CARB A/B EVERY POWER UP, IF GOOD BUTTON, DISPLAY THERMISTOR(S) (0-200°F) READS “-002” ARE PLUGGED INTO CIRC A AND CIRC B CONNECTORS ON ERC DISPLAY READS NO YES “-003” EXIT, AND GO INTO PROGRAM MODE 1CONDUCTIVITY IF ONLY ONE, (OR NONE) “C001”PRESS CARB A/B GOOD THERMISTOR IS YES BUTTON PLUGGED IN, THEN ONLY THAT CONNECTOR (A OR B) CIRC TEMPERATURE WILL DISPLAY (AUTOSET) F PROGRAM MODE 3 IS SET RIGHT FOR SODA / CHILLER UNIT NO DISPLAY READS (“-003”), GO TO COMPRESSOR “CAOO” TROUBLESHOOTING, IF COMPRESSOR STILL NOT COMING ON/OFF WHEN IT YES SHOULD NO ONLY ONE CIRC SYSTEM TROUBLE SHOOT CARB TEMPERATURE (OR NONE) IS TANK WIRING HARNESS DISPLAYING ON A TWO CIRC AND CONNECTORS, LOOK FOR OPEN SYSTEM UNIT CONNECTION AND REPAIR / REPLACE YES DISPLAY READS “1273” REPEAT FOR CARB B WHICH IS BEER MODE SYSTEM SETTINGS IF REPLACE BAD ONLYRE-PROGRAM MODE 3 NECESSARY THERMISTOR(S) 020001991 TO ICE BANK PROBE “-003” (NOT MEASURING 0-200°F) OR BY PRESSING COMP/AGIT GOOD THERMISTOR(S) NOT BUTTON ONCE IF “CA11” REPLACE ERC PLUGGED IN CONTROL 020001985

VERIFY BOTH GOOD IF EITHER OR BOTH “0” THERMISTORS ARE DIGITS IS A “1”, RE- PLUGGED IN, THEN REPROGRAMMING YES / END PROGRAM TO “0” VIA TURN UNIT POWER FIXES PROBLEM PROGRAM MODE 2 OFF, THEN ON, TO INSTRUCTIONS REGISTER NEW THERMISTOR(S) VERIFY CARB A & B NO SYSTEMS WORK NOW, SEE CARB SYSTEM TROUBLESHOOTING IF NECESSARY IF NO TEMP DISPLAY TROUBLE SHOOT ICE BANK GO TO ERC / DISPLAY PROBE WIRING AND TROUBLESHOOTING CONNECTORS, LOOK FOR OPEN CONNECTION AND REPAIR / REPLACESEE COMPRESSOR TROUBLESHOOTING IF

Part Number STH12 9/10 153 ERC Component (Output) Connector Layout

CRAGITATIORCARB A CARB B CIRC A CIRC B

L/N

EARTH

PLUG THIS PIN

ERC Sensor (Input) Connector Layout

12 11 10 9 8 7 6 5 4 3 2 1

HPCOCO2 WATER TS TD TW TB TA WL ICE CA A CA B

HIGH PROBE HPCO SWITCH LOW PROBE COM GND +5V DC HIGH PROBE OUTPUT LOW PROBE GND COM HIGH PROBE +5V DC LOW PROBE OUTPUT GND SUCTION TEMP LEVEL PROBE DISCHARGE TEMP CIRC A TEMP WATER BATH TEMP CIRC B TEMP

154 Part Number STH12 9/10 Component Specifications

Refrigeration Unit Specifications Type of Model Number of Dispensing Heads Container 2803 One 6-valve soda tower Bag-in-Box 11M One 6-valve soda tower or up to Bag-in-Box three 2-valve root beer towers 44M & Up to two 8-valve soda towers Bag-in-Box 42M 50M Up to two 8-valve soda towers Bag-in-Box Super-Chill units do not apply to the above table, they are only used to chill large amounts of water.

RATINGS Evaporator Rating Model Heat Rejection (Max.) at 20°F (-6.5°C) Model 2,500 BTUH 4,500 BTUH 2803 490 kcal/hr 885 kcal/hr Model 5,150 BTUH 8,638 BTUH 11M 1,159 kcal/hr 1,949 kcal/hr Models 9,700 BTUH 13,576 BTUH 44M & 2,340 kcal/hr 3,685 kcal/hr 42M Model 14,900 BTUH 20,400 BTUH 50M 3,310 kcal/hr 4,285 kcal/hr

Part Number STH12 9/10 155 S-250M Specifications Countertop 175 lbs./79.5 kgs Weights Ice Storage up to 250 lbs./ 114 kgs of ice. Capacity Electrical Dispenses: 120V/60Hz/2.8 FLA Requirements Two 3/4" (1.96 cm) PVC (N.P.T.) drain fittings. One pre-installed 3/4" (1.96 cm) Drain PVC fitting extends from drain pan. A second fitting extends from bin. Manual fill or top-mount with compatible Machine 22" and 30" wide ice machines. Contact Compatibility factory for baffle and ice wide ice machines. Motor, drain and electrical connections Service are front serviceable.

MII-302 Specifications Countertop 402 lbs. / 182 kgs Weights Ice Storage 300 lbs. / 136 kgs Capacity Electrical Dispenser: 120V/60Hz/3.5 FLA Requirements Two pre-installed 3/4" (1.9 cm) PVC (N.P.T.) drain fittings extend from drain pan. Ice bin drains Drain directly into drain pan for front clean out, no hook up necessary. Manual fill or top-mount with compatible 30" wide ice machine. Certain top-mounted machines may Machine reduce storage capacity. Contact distributor or Compatibility Manitowoc Foodservice for baffle and ice maker lid requirements for top-mounted ice machine applications.

Service Motor, drain and electrical connections are front serviceable.

156 Part Number STH12 9/10 Charts

Refrigerant Charge

R-12 MODEL P/N R-12 OZS/GRAMS 16 EUTECTIC 200847 10/1304.1 37A 903750 73.6/2086.5 37W 903751 80/2267.9 37R 903753 194/5499.8 37TA 903770 74/2097.8 37TR 903771 172/4876.1 37TW 903772 80/2267.9 38HA 903801 18/510.3 38HW 903803 23/652.1 38HR 903804 98/27782 72AL 904666 49-1389.1 72WR 904667 57/1615.9 72WL 904668 57/1615.9 72LR 904682 151/4280.7 72RR 904683 151/4280.7 37AF 904707 74/2097.8 37RF 904708 172/4876.1 37WF 904709 80/2267.9 50A 905008 46/1304 50RC 905009 134/3798.8 50W 905010 57/1615.9 50HA 905011 36/1020.6 50HW 905012 44/1247.4 50HR 905013 150/4252.4 38A 905210 26/737.1 38R 905211 31/878.8 38W 905223 64/1814.3 51AEUTECTIC 905224 46/1304.1 2803A 902801 8/226.8 2803W 902803 6/170.1 1200A 32/907.2 1200W 36/1020.6

Part Number STH12 9/10 157 R-12 (Continued) MODEL P/N R-12 OZS/GRAMS 2803W 902805 6/170.1 11AS 903722 12/340.2 37KA 903730 74/2097.8 37KR 903731 172/4876.1 37KW 903732 80/2267.9 38HAC 903806 18/510.3 38HAC 903807 18/510.3 38HAC 903808 18/510.3 39 903939 98/2778.2 39SC 903940 98/2778.2 D4610 904601 67.5/1913.6 37RF-1 904701 172/4876.1 371A 904710 74/2097.8 371R 904711 172/4876.1 371W 904712 80/2267.9 50HA-1 905017/20 36/1020.6 50FW-1 905018/24 44/1247.4 50HR-1 905019/22 150/4252.4 75A 907501 8/226.8 125A 912501 6/170.1 150A 915001 12/340 D4205A 942050/51 16/453.6 2000A 26/737.1 2000W 31/878.8 44KA 904419 25/708.7 44KR 904420 128/3628.7 44KW 904421 22/623.7 R502 44A 904400 25/708.7 44R 904401 128/3628.7 44R 904405 98/2778.2 44W 904406 22/623.7 R502

158 Part Number STH12 9/10 R-22 MODEL P/N R-22 OZS/GRAMS 11MA 901106 11/312 11MA2C 901108 11/312 150MA-1 915011 11/312 37KA22 903790 64/1814 37KR22 903791 151/4281 37KW22 903792 70/1984 37MA-P 904725 64/1814 37MR-P 904726 151/4281 37MW-P 904727 70/1984 44KA22 904440 47/1332 44KR22 904441 116/3289 44MR-G 904431 116-3289 44MR-P 904500 47/1332 44MW-G 904432 35/992 50MA 905030 42/1191 50MR 905031 140/3969 50MR 905036 140/3969 50MW 905032 52/1474 75A 907511 7/198 HC180 902809 7/198 HC340 901109 11/312 HC340S 901111 11/312 R2803A 902821 7/198 R2803W 902822 7/198

Part Number STH12 9/10 159 R-404A MODEL P/N R-404A OZS/GRAMS 11M042C 901125 13.5/383 11MA04 901120 13.5/383 150A04 905121 13.5/383 2803A04 902830 10.5/298 2803A04B 902838 10.5/298 300MA04 930021 57/1616 3610R404C 936116 240/6804 38MA04 903850 39/1106 38MA04B 903859 39/1106 38MW04B 903855 29.5/836 38MW04 903852 26/737 44KA04 904490 57/1616 44KR04 904491 125/3544 44KW04 904492 57/1616 44MA04 904480 57/1616 44MA04E 904416 57/1616 44MR04 904481 125/3544 44MR04E 904417 125/3544 44MW04 904482 57/1616 44MW04E 904418 57/1616 450MA04 945013 113/3203 50MA04 905040 113/3203 50MR04 905041 145/4111 50MR04 905046 145/4111 50MW04 905042 113/3203 75A04 907521 10.5/298 D3610-04 936113 240/6804 D4810R04 948102 240/6804 HC900-04 903856 29/822 HC900S04 903858 29/822

160 Part Number STH12 9/10 Operating Pressures

NORMAL OPERATING PRESSURES OF REFRIGERATION UNITS 75 140 130 75 150 9-20 30-50 24-44 33-559-20 9-20 30-50 R-12 R-502 R-22 R-134A R-404A R-134A R-12 R-502 R-22 R-12 R-502 R-22 R-134A R-404A R-134A R-12 R-502 R-22 100-140 200-260 180-240 210-280 110-160 120-170 230-300 210-280240-320 130-180 Ambient Ambient Evaporator Evaporator Evaporator or 80°F Water Head Pressure psig psig psig psig psig Head 10-100% Ice on 10-100% Ice on 10-100% Ice on 75°F Condenser 90°F Condenser 75°F Evaporator, 75°F Evaporator, Evaporator Pressure psig psig psig psig psig psig psig Pressure Evaporator 1. On system with expansion valve (pressure limiting) evaporator gets no higher than: 50 psig on R-12 53 psig on R-502 85 psig on R-22 2. Water system head pressure should be manually set (adjustable water control valve) to maintain 105°F water condenser out temperature. 3. Remote Condenser system head pressure will be controlled by Low Ambient Control 75 psig on R-12, R-134A 150 psig on R-502, R-22, R-404A

Part Number STH12 9/10 161 NORMAL OPERATING PRESSURES OF REFRIGERATION UNITS 9.7 9 10.3 R-12 R-502 R-22 R-134A R-404A R-134A R-12 R-502 R-22 R-12 R-502 R-22 R-134A R-404A R-134A R-12 R-502 R-22 0.6-1.4 2.1-3.4 1.7-3.0 0.4-1.2 2.3-3.8 6.9-9.7 13.8-17.9 12.4-16.5 7.6-11.0 14.5-19.3 8.3-11.7 15.9-20.6 14.5-19.3 8.9-12.4 16.5-22.1 Ambient Ambient Evaporator Evaporator Evaporator or 27°C Water or 27°C Water Head Pressure bar bar bar bar bar 10-100% Ice on 10-100% Ice on 10-100% Ice on 90°F Condenser 24°C Condenser 24°C Evaporator, 24°C Evaporator, Evaporator Pressure bar bar bar bar bar

1. On system with expansion valve (pressure limiting) evaporator gets no higher than 3.4 bars on R-12 3.7 bars on R-502 5.9 bars on R-22 2. Water system head pressure should be manually set (adjustable water control valve) tomaintain 40.5°C water condenser out temperature. 3. Remote Condenser system head pressure will be controlled by Low Ambient Control 5.2 bars on R-12, R-134A 10.3 bars on R-502, R-22, R-404A

162 Part Number STH12 9/10 McDonald’s Models History Flow Carb. Water Line Size Line Circulating Pump GPH Model Baths 1969 1200 Twin50 GPH Two ID 3/8" Slow 1973 (late)1978 (late) 12001981 (late)1982 (late) 721987 (mid) 37F (Fast Flow) Twin1990 (late) 37 PSI) 37T (Total Single1990 (late) 50 GPH Two Twin 100 GPH Two Single1992 (mid) 37K (Kit) 3/8" ID 100 GPH Two 100 GPH 1/2" ID Two 1992 (mid) 44K (Kit) Single 37K-22 (R-22)1992 (mid) 1/2" ID 1/2" ID 100 GPH Two Single Slow 1995 (mid) Plate Cold Single Fast 44K-22 (R-22) Slow/Fast Single 1/2" ID 100 GPH Two 44K-404 (R-404A)1995 (late) 100 GPH Two Fast One 100 GPH 1/2" ID Single Slow/Fast Single 50M-04 (R404A) 1/2" ID N.A. One 100 GPH 1/2" ID One 100 GPH Single 1/2" ID Fast 1/2" ID 100 GPH Two Fast Fast N.A. 1/2" ID Fast Fast 1/2" ID Fast Fast 1979 (early) 36* Single 100 GPH Two 1/2" ID Slow/Fast

*Only 100 units manufactured.

Finished Drink Soda Only @ 5:1 Brix Slow Flow 6 oz. / 4 sec. 5 oz. / 4 sec. Fast Flow 12 oz. / 4 sec. 10 oz. / 4 sec.

Part Number STH12 9/10 163 Sustained Draw Curve Charts

SC180 SUSTAINED DRAW CURVE Inlet Temperature (°F) Inlet Temperature

Flow Rate (pounds/minute)

SC340 SUSTAINED DRAW CURVE Inlet Temperature (°F) Inlet Temperature

Flow Rate (pounds/minute)

164 Part Number STH12 9/10 SC1000 SUSTAINED DRAW CURVE Inlet Temperature (°F) Inlet Temperature

Flow Rate (pounds/minute)

SC2000 SUSTAINED DRAW CURVE Inlet Temperature (°F) Inlet Temperature

Flow Rate (pounds/minute)

Part Number STH12 9/10 165 This Page Intentionally Left Blank

166 Part Number STH12 9/10 Diagrams

Wiring Diagrams

MODEL 72/72B AIR COOLED 3 PHASE Ground Metal Metal Equipment Black Green Green Wire Conduit 120VAC White Black Flex Flex Fan Fan

Conduit 4 x 2 Handi-box 4 x 2

Motor Low Flex Flex Stitch Black

Conduit Conduit

Pressure Assembly Condenser Stand White

White Black

Fan Fan

Motor Black Air Motor Signal 2 Only Comount Motor Pump Water Assembly with Wires with Compressor Compressor Booster CO Transformer Transformer

Right Hand Unit Hand Right Black

Blue 24VAC Black Compressor Black White Black

Blue Blue

Black Black Blue

Red Red

White Red Black Black Sensor Ice Bank Bank Ice Red Red Green Wire Blue Red with Wires Contactor Red Equipment Ground White

4 x 4 Handi-box

Comount Assembly Carb.

White Blue

Black Black White

Red

Black White

Black White White Black

Black Neutral

Agit. White Black White To 204/120 VAC VAC 204/120 To 3 and 4 Wire Supply4 Wire 3 and Motor Agitator Agitator Red White Circ. Black Motor Circulation Circulation Load Red Control Box Control Ref.

Black

White Red White Motor Pump Pump Green Carbonator Wire LargeNut, Black Wire SmallNut, Yellow to Component Wire Attached

Symbols

Cable Black 3 Conductor White

Tank Green Carbonator

Part Number STH12 9/10 167 MODEL 72/72B AIR COOLED 1 PHASE Tank Carbonator Cable Jacket Assembly 240VAC Output 240VAC

Black White

White Red

Transformer (Automatic) Transformer Black Red Load Carb. Motor Pump 208VAC Input 208VAC Green Flex Flex

Conduit

Red

Liquid Level Liquid Level Control Black Red Ground Metal Metal Equipment Conduit Black Green Wire Green 120VAC White Black Flex Flex

Conduit

Flex Black Conduit

Assembly Transformer White Condenser Stand White

Black Black

Air White Motor Red Motor Water Pump Booster Compressor Red

Black White Green Black 120VAC 120VAC Red Red Black Start Red Black Relay Warning: Contactor Green Wire

Metal Metal

Conduit For 220VAC, rewire For 220VAC, Equipment Ground per alternate wiring. Red

Red

Black White

Sensor

Carb.

White Red

Ice Bank Black

Black Black Black Agit. White Black Red

Motor

White Flex Flex Agitator Agitator Black Black Conduit Assembly Red Black Start Black White Capacitor Control Box Circ. White

Red

Circ. Motor Green Black White Flex Flex Run Conduit Ref. Assembly Capacitor White Black Black Red Compressor

2 Signal Low CO 2

Pressure Switch Pressure

CO Transformer

Black Red 24VAC High Control Pressure

Alternate Wiring Symbols When the supply voltage is 230/115 VAC, disconnect autotransformer (0021035) from the circuit. Wire Nut, Small Yellow 1. Disconnect incoming power. Wire Nut, Large Black 2. Remove transformer box cover. 3. Remove wire nut from black lead to H4. Wire Attached to Component 4. Replace wire nut on exposed end of black lead. 5. Remove both red leads from (H1 and X1). Identified Terminal 6. Connect red leads together with a wire nut. Toggle Switch 7. Replace cover.

168 Part Number STH12 9/10 MODEL 72/72B WATER COOLED 3 PHASE Ground Metal Metal Black Green Equipment Conduit Green Wire 120VAC Black White

2 Flex

Conduit

Flex Flex Stitch Black

Conduit

Condenser Stand Assembly Pressure Low CO

White White Black High High

control

Pressure Black Air Motor Signal Signal 2 Motor Comount Pump Pump Water Assembly with Wires with Booster Booster Compressor CO

Hand Unit Only Hand Unit

Transformer Right Black

24VAC

Blue Compressor Black White

Black

Black Blue Blue

Black Black Blue

Red

Red White Red Black Black Sensor Ice Bank Red Green Wire Blue Red with Wires with Red Contactor Red Equipment Ground

Comount Assembly

4 x 4 Handi-box 4 x White

Carb. Blue

White Black White

Black Red White

White

Black White

Black Black

Black Neutral

White Agit. White Black To 204/120 VAC 204/120 VAC To Motor 3 and 4 Wire Supply 3 and 4 Agitator Agitator Red White Circ. Black Motor Circulation Circulation Red Load Control Box Control

Ref.

Black

White Red White Green Motor Pump Carbonator Wire Nut, Large Black Wire Nut, Small Yellow Wire toAttached Component

Symbols

Cable Black 3 Conductor White

Tank Green Carbonator

Part Number STH12 9/10 169

MODEL 37

Green

Green Black

Black White

White

Conduit with Wire with Conduit Black Air Air Motor Motor Agitator Agitator Compressor Tank “A” Tank

Wire Nut, LargeWire Nut, Wire Nut, Small Carbonator

Switch Green

Pressure Black

Black White

Conduit with Wire with Conduit White “B” Tank Carbonator Boxes Cord In 2 x 4 Branch 2 x In 3 Wire Toggle Switches Toggle Stand Syrup Fan Compressor Switch Pressure Pressure

Remove Condenser Remove Black

Conduit with Wire with Conduit

Field Insulated Wiring Insulated Field White Black Field Connection Field Conduit Box 3 Wire Cord3 Wire 2 x 4

Branch Branch with Wires with

Motor Pump Water

Blue

Booster Blue

2 x 4 Branch Box 2 x 4

Black Black

Blue Green Red Conduit Red Red Black Refrig. Green Black Blue Contactor Black Lamp

Control Control

Warning Green Ice Bank Bank Ice Blue

White

Red Red System

on Tower White

Blue Black White Warning Lamp Warning Black

Red Red Red White

White Agitator White Conduit Black Nut Wire Wire

Switch

Pressure Pressure

Green Blue White Red “B” Circ. Control Control Control Primary Primary Ice Bank Bank Ice Ice Bank Ice Bank Secondary Secondary 37 A/37 W. A/37 37 Warning for Warning Blue High Pressure Pressure High 120V

White

White Green

Black Black “B” Carb. Green Black White Black White Transformer Blue “A” Circ. 120V “B” Circ. “A” Carb. “A” “B” Carb. White Black “A” Circ. White White Black Brown “A” “A” Black LLC White Carb. Black Red Blue

Blue White

White Brown Red

White

White Black

White “A” Carb. Green Red Blue Red White Wire. Black 2 x 4 Branch Boxes Branch 2 x 4 Supply or 240 VAC 3 Phase Delta Wire Delta 3 Phase To 120/208 3 Phase 120/208 To grounded Center tap. Center grounded High Wild Leg To Red Red High Wild To Leg Green Screws 4 Wire, 60 Hz, 30 Amp 60 Hz, Wire, 4 If 3 Phase Delta Connect Connect Delta 3 Phase If Equipment Ground

170 Part Number STH12 9/10 MODEL 371F

Flex Flex

Cond.

Blue

Black

Red

Black Black

Compressor Green Motor Agitator Agitator Screw Ground Green Black Refrig. Blue #11 #11 Mac. 8 8 Mac. Relay Blue Condenser Model 371RF Green Agitator

Field

Wiring

Red

Green Blue

Blue Red Control Ice Bank Bank Ice Secondary Secondary Only

Model Model

371AF 371AF Green

Fan Contactor Capacitor

37AF Motor Red Blue

Green Brown Black

Red

Green

Black Red

Lamp

Black Refrig.

Warning

Black Red Yellow Yellow Blue

White White

Blue

Yellow Blue Green

White Black White Red

Yellow

Blue Blue

Ice Blue Bank Control Primary Wire Wire Green Green Ground Equipment 2 x 4 Handi Box High Red Blue Black White Control Green 250 PSI Pressure Wire. Small Wire Nut Nut Wire Supply or 240 VAC 240 or Supply 3 Phase Delta Wire3 Phase Delta To 120/208 3 Phase 120/208 To grounded Center tap. Center grounded High Wild Leg To Red Wild To Leg High 4 Wire, 60 Hz, 30 Amp Hz, 60 Wire, 4 If 3 Phase Delta Connect Connect Delta If 3 Phase

Part Number STH12 9/10 171 MODEL 37F Switch Pressure Pressure

2 CO Tower Tank “B” Tank Black Warning Lamps on Lamps Carbonator White Green Soda Conduit

Flex

Cond. Blue

Black

Cord Red

3 Wire 3 Wire

Black Black Air

Motor

Yellow Pump

Motor Compressor

Agitator Green

White Blue Screw Ground Ground Flex Cond. Green Yellow Black Blue Compressor

Load #9 #9

LLC Black Mac. 6 Mac. Green Blue Relay White “B” Carb. “B” Condenser Black Switch Model 37AF Model Black Tank “A” Pressure Pressure Air PumpAir White Carbonator White Green/ Yellow Green Field Field

Black Wiring

Red

White

Red

Yellow

Blue Green Green

Cord 3 Wire 3 Wire Red Black Air Air Control Comp. Agitator Refrig. Ice Bank Bank Ice Secondary Secondary Only 37AF 37AF Model Model Green Yellow

Black 120V Fan Contactor

Black 37AF 37AF Motor Red White White

White

Pump Pump

Brown Red

Blue Booster

Black

Black Green White White Green Black

Red

Green/ Yellow Green/

Black

Red Yellow Yellow Blue Black Lamp

Refrig. Refrig.

Blue

Warning

White Brown White Transformer

“B” “B”

Circ.

White Black Blue Blue

Yellow Green White

Black White

Red Blue Black White Blue Yellow

“B” “B” Black Carb. Black Control Ice Bank Bank Ice Wire Wire Switch Preliminary Green Booster Ground Pressure Pressure

Equipment Equipment

2 x 4 Handi Box x 4 Handi 2 Black Black High Black White “A” “A” Circ. Control Red Blue 250 PSI Black Black White Green Pressure “B” Circ. “A” Circ. “B” Carb. “A” Carb. White Green LLC LLC Blue

Black

“A” Carb. Red Flex Cond. White

Red Blue “A” “A”

Black Green White White White White Brown

Carb. White Blue

Motor Water Pump

Booster Booster Black White

Supply or 240 VAC 240 or Supply 3 Phase Delta Wire3 Phase Delta To 120/208 3 Phase 120/208 To grounded Center tap. Center grounded Red 4 Wire, 60 Hz, 30 Amp Hz, 60 Wire, 4

If 3 Phase Delta Connect Connect Delta 3 Phase If

High Wild Leg To Red Wire. Red To Leg Wild High White Blue

Wire Nut Large Nut Wire Wire Nut Small Nut Wire White Brown

172 Part Number STH12 9/10 MODEL 37T lights lights 2

Lamp #6 Lamp #7 Lamp 2 CO Panel Note: Note: out of CO 7 are 6 and Lamps towers. the dispensing on located and conduit with provided is Wiring towers. Note: units, air and remote domestic On on #T3 wire to goes #T3 Wire relay. start motor

“B” LLC

Grn

Blk “B” Wht 1 Carb. Tank Tank Carb. IBC IBC

M7 Compressor

Wht Refrigeration Agit.

Motor Blk Grn High High “A” Cut-out Pressure Pressure M5 Carb. Tank Tank Carb. Bath Water Field Field PS-6 Connections 2 IBC IBC M8 Fan Fan Junction Box Junction Fan With Only Remote Remote Remote Remote Only “A” Condenser Condenser LLC Cooled Cooled With Air Air Motor By-pass Control Box SW Filter SW Filter Compressor Motor Pump Booster Booster Stand Syrup “A” Carb. Carb. Motor Motor Lamp #1 Lamp “A” Circ. Circ. Motor Motor Lamp #2 Lamp “B” Carb. Carb. Motor #3 Lamp Lamp Lamp #5 Lamp Ground Neutral “B” Circ. Motor Lamp #4 Lamp

Note: Conductor Color Codes MS Relay Motor Start Domestic Export SW Switch L1 Black L1 Black PS Pressure Switch L2 Red L2 Brown CR Control Relay L3 Brown L3 Brown LLC Liquid Level Control L4 White L4 Lt Blue IBC Ice Bank Control L5 Grn/Yel L5 Grn/Yel M Motor Incoming Power – 3 Phase, 4 wire TTransformerwiring supplied by installer from J Connection Receptacle junction box to fan. P Connector Plug TS Terminal Strip

Note: all switches shown in their normal positions.

Part Number STH12 9/10 173 MODEL 37T SCHEMATIC DIAGRAM

Grn/Yel Incoming Wht Power Blk MS 3 Phase 4 Wire Red MS M9 Refrig. Compressor Brn MS

AJR or Remote M8 Fan Motor SW 1 CR1 LLC “A” M1 Carb. “A” Motor SW 2 CR1 M2 Circ. “A” Motor Low Incoming Water R Press Carb. “A” SW 3 Lamp 1 CR2 LLC “B” M3 Carb. “B” Motor

SW 4 CR2 M4 Circ. “B” Motor Low Incoming Water R Press Carb. “B” SW 5 CR3 PS-4 Lamp 2 M5 Booster Pump Motor

Low Incoming Water R Press Booster Pump SW 6 PS-5 Lamp 3 M6 Air Comp Motor SW 7 M7 Agitator Motor SW 8 IBC-2 IBC-1 PS-6 M5 Refrig Comp Motor Start Relay Primary Ice Bank R Control Failure Lamp 4 T1

Lamp 5 JI-1 SW-9 JI-2 A Filter In By Pass PS-1 Carb “A” Low Press CR1 Relay PS-2 Carb “B” Low Press CR2 Relay PS-3 Booster Pump Low CR3 Press Relay Lamp PS-7 6 A Out of CO2 Tower 1

A Out of CO2 Tower 2 Lamp 7

J2 99

174 Part Number STH12 9/10 MODEL 37K

2 CO Panel 24 VAC “A” LLC LLC “B” Lamp #3 M6 Tower #1 1 Carb. Tank Carb. Tank Comp Refrig. Refrig. IBC Agit. Agit. Motor Rfi ti “A” Carb. Tank Tank Carb. High High Cut-out Pressure Pressure Lamp #4 2 Tower #2 IBC IBC Only Cooled With Air Air With Fan With Only Remote Remote Remote Remote Condenser Condenser “B” LLC On domestic remote and air units, wire #13 goes to terminal #T3 on MS (Motor Start Relay). Start (Motor MS on #T3 to terminal goes #13 wire units, air and remote domestic On (TS#11). Neutral to goes #13 wire unit air and remote Export On 2.position. normal their in shown switches All Notes: “A” Carb. Carb. Motor Lamp #1 Lamp “A” Circ. Circ. Motor Motor “B” Carb. Carb. Motor Ground Neutral “B” Circ. Circ. Motor Motor Lamp #2 Lamp

Component Legend Conductor Color Codes MS Relay Motor Start Domestic Export SW Switch L1 Black L1 Black PS Pressure Switch L2 Red L2 Brown CR Control Relay L3 Brown L3 Brown LLC Liquid Level Control L4 White L4 Lt Blue IBC Ice Bank Control L5 Grn/Yel L5 Grn/Yel M Motor Incoming Power – 3 Phase, 4 wire TS Terminal Strip wiring supplied by installer from junction box to fan. Note: Out of CO2 (24 Y) lamps #3 and #4 located on dispensing towers wiring supplied with conduit and towers. For Schematic wiring see tower wiring diagram.

Part Number STH12 9/10 175 MODEL 37K SCHEMATIC DIAGRAM

Grn/Yel

Incoming Lt. Blu Grn/Yel Power Blk Blk 3 Phase Red Red Compressor 4 Wire Brn Brn Fan Motor Yellow (Remote) Grn/ Blk (Air) H6 Yel Yellow (Remote) Brn (Air) LLC-A Grn Wht Carb “A” Blk Brn On/Off Lt. Blu M1 Grn/ Switch-1 CR1 Yel Blk Blk Blk Lt. Blu Carb. “A” Motor Circ “A” On/Off Switch-2 CR1 Blk Blk Blk M2 Lt. Blu Circ. “A” Motor Grn/ Yel PS-1 Low Incoming R Water Press Warning Light Blk Lt. Blu Carb “A” Motor CR1 Low Press Relay Blk Lt. Blu Carb “B” Motor CR2 Low Press Relay LLC-B Grn Carb “B” Wht Blk Brn On/Off Lt. Blu M3 Switch-3 Grn/ CR2 Yel Lt. Blu Brn Brn Brn Carb “B” Motor Circ “B” On/Off Switch-4 CR2 Lt. Blu Brn Brn Brn M4 Circ “B” Motor Grn/ Agitator Yel On/Off Switch-5 Blk Blk M5 Ribbed Agitator Motor

Refrig Grn/Yel On/Off Switch-6 IBC-2 IBC-1 PS-2 Refrig Comp Lt. Blu Blk Blk Blk Blk Brn MS Motor Start Relay Blk Primary I.B.C. Blk R Failure Warning Light

176 Part Number STH12 9/10 MODEL 44A & R WIRING DIAGRAM

Agitator Carb. Circ. Carb. Motor Pump Pump Pump Motor Motor Motor

Blk Black Agitator Ribbed Black Conductor Wht Contactor

Blu Black Brn

Wht Carb. A Black

Blk Wht Green Wht Black Load Red

Wht Black Term Circulator Brn Carb. Blk Block Brn Tank Blk High Pressure Remote Wht (Neutral) Limit Switch Condenser Model Model 44A Brn Refrig. 44 A Only Only Yellow Brn Yellow

Model Brn 44 R Only Compressor “J” Box Cond. Start Blk Fan Ice Bank Line Control Field Relay Brn Model 44 A Wire 230 VAC Te r m Only 60 Hz Start 1Ph Cap. Blu Red Brn Blk Run Yellow Cap. Capacitor Box (See Cover)

Part Number STH12 9/10 177 MODEL 44K WIRING DIAGRAM

208-230/60Hz 1 Phase

L1 L2 L3

Lamp 4 R PS1 CR1 Lamp 1 R Low Water SW1 Pressure PS2 IBC1 IBC2 MS SW2 M1 Agitator Lamp 2 Motor SW3 GR LLCA M2 Carb. “A” CR1-1 Lamp 3 R LLCB M3 Carb. “B” SW4 M4 Circ. CR1-2 Motor MS MS CL R

Compressor Start Relay

PS Fan Motor Start Cap Run Cap

Component Legend MS Relay Motor Start SW Switch ON/OFF PS Pressure Switch CR Control Relay LLC Liquid Level Control IBC Ice Bank Control M Motor TS Terminal Switch

178 Part Number STH12 9/10 MODEL 44K22 #1 #2 #3 #4 Switch Switch Switch Switch Switch Switch Switch Agitator Agitator Circulator Carbonator Compressor Blue Blue

Black

Brown Blue M7

Motor Motor Water

Booster Booster Brown

Cut-out

Black Blue

High Pressure Blue Black Black Brown Air M6

Motor Comp. Comp. Ribbed Switch/Junction Box (Optional) Lamp 4 Lamp L o a d (Optional Air Compressor and Water Booster) Water and Compressor Air (Optional Screw Ground “B” LLC M5 Fan Fan Start Motor Capacitor Green/Yellow Black CR1 Black

Run Run Red

Capacitor

Lamp 3 Blue

Black Relay Relay Black Black Compressor

Green Green Yellow

L o a d Blue

“A”

LLC Brown Red Blue Black Black Lamp 2

Red Brown Black Black Green HS “A” “A” M2 #2 Carb. Carb. Motor IBC IBC Green/Yellow (Ground) Green/Yellow Brown Blue (Yellow) Remote Fan (Yellow) Remote Fan M2 Circ. Circ. Motor #1 IBC “B” “B” M2 Junction Box Junction Carb. Carb. Motor Incoming Power

208/230 I.P. H. (2 Wire)208/230 I.P.

Green Black

Black

Ribbed M1

Agit. Agit. White

Motor Motor Red Carbonator

Part Number STH12 9/10 179 MODEL 44M04 SCHEMATIC DIAGRAM

208-230 1 Phase

L1 L2 SW5 Export Units Only M6 Water Booster SW6 Export Units Only M7 Air Compressor SW1 PS2 IBC1 IBC2 MS Compressor

SW2 R Lamp #1 M1 Agitator Motor SW3 G Lamp #2 LLCA M2 Carb. “A” CR1-1 A Lamp #3 LLCB M3 Carb. “B” SW4 M4 Circ. Motor CR1-2 R Lamp #4 PS1 CR1 Low Water Pressure

MS MS Start OL Relay R

S Compressor

Start M5 Cap Fan Motor Run Cap

Component Legend MS Relay Motor Start SW Switch ON/OFF PS Pressure Switch CR Control Relay LLC Liquid Level Control IBC Ice Bank Control M Motor TS Terminal Switch

180 Part Number STH12 9/10 MODEL 50H Brn Run Start

Brn

Red Black Blk

Brown Red

Red

Brown Brn Compressor Compressor Single Only Single Phase Units Brown Black Note: Note: wire Red box and x 4 to 2 contactor from wire Red single on used not are compressor to contactor from units. phase B B A A Circ. Circ. Carb. Carb. Carb. Switch Switch Switch Switch Switch Switch Switch Agitator Agitator Blk Blk Brown Black Black Brown Brown Brown Black Brown Fan Black Motor Brown “B” L.L.C L.L.C “B” “B” “A” “A”

Pump Pump Pump Pump

Circulating Brn Circulating Carbonator Carbonator Red Blk

White Blk Blk Black “A” Blue Blue L.L.C L.L.C Blue Blue Brown Brown Brown Brown

White

Green

Red Black Wht Brown Brown Wht Wht Blk Blk White

Brown Blk Brn Blu

Block Red Termin al Grn/Yel Blk Contactor Blk Brown 2 x 4 Box White Brn Black Black White Brown Grn Red Black B A Tank Tank Tank Brown Brn Ice Ice Ice Ice Grn Red Bank Bank Bank Black Control Control Control Back up up Back Primary (optional) Brown I.B.C. I.B.C. Brown Brown (optional) Brown Warning Lamp Lamp Warning Cut-out Motor Agitator Agitator High Pressure

Part Number STH12 9/10 181 MODEL 50M04

120-208/240 60Hz 3 Phase

L1 L2 L3 L4

M1 SW #1 Agitator Agitator Motor M2 SW #2 Carb “A” LLC “A” Carb Motor “A” M3 SW #3 LLC “B” Carb Motor “B” Carb “B” Time Delay Relay PS-1

Lamp 1 M4 SW #4 Circ “A” Circ Motor “A” M5 SW #5 Circ “B” Circ Motor “B” CR SW #6 Refrig Control Relay PS-2 IBC “1” IBC “2” CR CR CR

Lamp 2

Fan Motor “1” Fan Motor “2”

Compressor

Component Legend MS Relay Motor Start SW Switch ON/OFF PS Pressure Switch CR Control Relay LLC Liquid Level Control IBC Ice Bank Control M Motor TS Terminal Switch

182 Part Number STH12 9/10

FRONT DRAW TOWER WIRING DIAGRAM Grn/Yel Water Switch Blk Red Blk Wht Blk Yel Vio Blk Blu Brn Gry Org Grn Wht Red J20

Blu Red S LD6

Blk

Wht S

Blk

LD5 Red

Wht

Wht J17

Blk

Wht S Blk

LD4

Wht Gry

W Vio

Blu

Blk

Grn

Yel Wht S

J16

Org Red

LD3

Brn Blk

Blk Wht S LD2

Blu

Red S Red LD1 l t r o n o C

Blk

Red White White Wht

Key Board J15

Blk Wht Soda Switch Grn/Yel

Blk Light Switch

OFF-ON OFF-ON

2 CO use) (Optional

Blk

Blk Blk

Wht

Blk

t Blk

h W Grn/Yel

24 VAC

Blk

Wht h W Splice

Part Number STH12 9/10 183 PASS-THROUGH TOWER WIRING DIAGRAM 24 VAC 24 Ref. Conduit 24 VAC 24 OFF-ON SW Pressure SW SW Pressure 2 On Refrig. Unit Lamp CO 2 Low Low CO Lamp 2 Low Low Blk CO Blk Grn/Yel Wht Water SW.

Red

S W

Red

Blk Blu S W S W S W S Front Keyboard - Rear View Rear - Keyboard Front W Rear Keyboard - Rear View Rear Keyboard

S W

Red

Blu Blk Blk Grn/Yel Soda SW.

184 Part Number STH12 9/10 Soda Wiring Diagrams

MODEL 2803 (120V 60 HZ) Fan Motor (Air Cooled Only) O/L RIB Start Capacitor Compressor Blu Brn Tank Carbonator Control Ice Bank Bank Ice Motor Motor Grn Circulator Carbonator Red Only Blk Water Cooled Water Control Liquid Level Blu Blu Brn Brn Switch Pressure Load Brn Brn Motor Agitator Brn Brn ON/OFF Ribbed Blu Refrigeration ON/OFF

Circulator/ Carbonator

Blk

Brn Blu

Brn Wht Junction Box

Part Number STH12 9/10 185 MODEL 2803 (230V 60 HZ) Red Blu

Yel O/L

Ribbed Blk Start Fan Motor Compressor Capacitor (Air Cooled Only) Blu Brn Tank Carbonator Motor Motor Control Circulator Carbonator Ice Bank Grn Red Blk Motor Agitator Control Blu Blu Brn Brn Liquid Level Pressure Switch (Water Cooled Only)(Water Load Blk Blu Brn Brn Ribbed Ground in Junction Box Electrical Box Brn Brn Grn Refrig

ON/OFF Brn Brn Blu Brn ON/OFF Circulator/ Carbonator Blu Term Block

186 Part Number STH12 9/10

MODEL 2803 INTERNATIONAL (230V 50 HZ)

Blk Ribbed O/L Compressor Fan Motor Fan Motor Start Capacitor (Air Cooled Only) Tank Carbonator Blu Brn Motor Motor Control Circulator Carbonator Ice Bank Grn Red Blk Motor Agitator Control Blu Blu Brn Brn Liquid Level Pressure Switch (Water Cooled Only)(Water Load Blk Blu Ribbed Ground in Electrical Box Brn Junction Box Brn Grn

Refrig

Brn ON/OFF Brn Blu Brn ON/OFF ON/OFF Circulator/ Carbonator Blu Term Block

Part Number STH12 9/10 187 MODEL 2803 ELECTRONIC IBC

188 Part Number STH12 9/10 MODEL 11

Carbonator Carbonator Agitator Motor Motor Motor Blu Blu

Ribbed Blk Agitator Grn I.B.C. Motor

Red LCC Brn Brn Brn Blk Brn Load Blk Grn Red Carbonator Motor Brn

Carbonator Blu Tank Brn Brn Circulator Brn Motor

Brn Term Export Refrigeration Brn Blu 230 VAC, 50 Hz, 1 Phase Unit Blu Domestic Brn Brn Blk Wht 120 VAC, 60 Hz, 1 Phase Brn

Junction O/L Box Blk Compressor Fan Motor Relay Ribbed Yel

Red Red Blk Run Start Capacitor Red Capacitor

Part Number STH12 9/10 189 MODEL 11 ELECTRONIC IBC (L2 & N) (L2 & CARB MOTOR B CIRC MOTOR CARB ONLY (292) 120V/60Hz/1PH 230V/50Hz/1PH 230V/60Hz/1PH (292) MOTOR A WIRING DIAGRAM SS901120 SS901122 SS901139 MODEL 11M R404A (293) USED ON MODELS (293) (374) (290) (291) L N N SW3 L N N SWITCH LLC-B (370) CIRCULATOR C H L L (215) (373) LLC-A C H L L (BLK) (GRN) (RED) B SW5 CARB CARB SWITCH (BLK) (RED) (GRN) A (219) TS-1 SS901125 ONLY CARB S C (371) R COMPRESSOR CAP RUN START SW2 CAP CARB (RED) SWITCH MOTOR (BLK) (YEL) AGITATOR (RIBBED) (BLK) 2 (213) 1 (RED) (RED) RELAY CAUTION: DISCONNECT POWER BEFORE WORKING ON ELECTRICAL CIRCUITRY. 4 5 (SMOOTH) (217) (BLK) (BRN) (BLUE) SW1 (RIBBED) SENSOR SWITCH FAN SW4 AGITATOR MOTOR SWITCH (211) IBC-1 3 1 5 (132) REFRIGERATION O/L (BRN) (BRN) (130) 8014273 REV 04 (L1)

190 Part Number STH12 9/10 MODEL 42 & 44 ELECTRONIC IBC

Part Number STH12 9/10 191 MODEL 42 & 44 (WITH ERC 50 HZ)

50HZ 50HZ

192 Part Number STH12 9/10 MODEL 42 & 44 (WITH ERC 60 HZ)

60HZ 60HZ

Part Number STH12 9/10 193 MODEL 44 (120V 60 HZ)

L2 SW5 L1 Export Units only M8 Water Booster SW6 Export Units only M7 Air Compressor SW1 PS2 IBC1 IBC2

MS Compressor Lamp #1 SW2 R

M1 Agitator Motor

SW3 LLCA G Lamp #2 Carb “A” M2 CR1-1 Lamp #3 LLCB A

MS Carb “B” SW4 Circ Motor M4 CR1-2 Lamp #4 R PSI Low Water CR1 Pressure

MS MS Start Relay OL R

S Compressor Start Cap MS Fan Motor Run Cap

Component Legend MS Relay Motor Start SW Switch ON/OFF PS Pressure Switch CR Control Relay LLC Liquid Level Control IBC Ice Bank Control M Motor TS Terminal Switch

194 Part Number STH12 9/10 MODEL 44 (230V 60 HZ) SW#4 SW#3 SW#2 SW#1 Agitator Agitator Circulator Circulator Carbonator Compressor Cut-out PS1 High Pressure

PS2 Ribbed A L o a d L2 “B” LCC Grn/Yel L1 Cap Start Fan Motor Blk CR1 (Air Unit Only) Unit (Air Grn Wht Red

G1 G2 G3 G4 Grn Red

Blk Blk

Relay Blk Brn 2 Grn/Yel Compressor L o a d L2 A “A” LCC L1 Box Assembly Start TS1 Lamp 2 Lamp 3 Lamp 4 Blk Grn Red Blk Brn Red Blk Brn

MS Brn “A” “A” (M2)

Motor #2

IBC Blk Circulator “B” Lamp 1 (M4) Motor Motor - Grn/Yel - Brn - Blu (Yel) Fan -Remote (Yel) Fan -Remote Circulator #1 IBC Box Junction Junction “B” “B” (M3) 208/260 VAC 208/260 Motor 1 Phase, 2 Wire Phase, 1 Incoming Power Incoming Carbonator Ribbed Blk Grn

Motor Grn

Agitator

Blk

Wht Red routed through separate bushing, Note: wires must be

Part Number STH12 9/10 195 MODEL 50 (50 HZ)

Models 50MAX04 TS905053-353 50HZ50MRX04 TS905054-353 50HZ 50MWX04 TS905055-353 Caution: Disconnect power before working on electrical circuitry. See Serial Plate for Voltage Shown in the OFF Position Power Supply Block

Terminal Strip

Contactor Air Option Remote Fan Fan Cond Motor Motor

(Black)

(Black) RMT Only Refrigeration Liquid Line Agitator Solenoid Switch IBC Contactor Coil

HPCO AGT Motor

Low Water Pressure Relay Coil

Low Water Pressure (Grn) Switch Load (Red) Carb A Motor (Blk)

LLC

Tank A

LWPR Carb Motor A Switch Circ A Motor Circ Motor A Switch (Grn) Load (Red) Carb B Motor (Blk)

LLC Tank B

Circ B Motor LWPR Carb Motor B Switch

Circ Motor B Switch

196 Part Number STH12 9/10 MODEL 50 (60 HZ)

Models 60HZ50MA04 TS905050-363 60HZ 50MR04 TS905051-363 50MW04 TS905052-363 50MR04Q/T TS905046-263 Caution: Disconnect power before working on electrical circuitry. See Serial Plate for Voltage Shown in the OFF Position

Air Option Contactor

Remote Fan Fan Cond Motor Motor

(Black) (Black)

RMT Only Refrigeration Liquid Line Agitator Solenoid IBC Switch Sensor Contactor Coil

HPCO AGT Motor

Low Water Pressure Relay Coil

Low Water (Grn) Pressure Switch Load (Red) Carb A (Blk) Motor

LLC A

Tank A

LWPR Carb Motor A Switch Circ A Motor Circ Motor A Switch (Grn) Load (Red) Carb B Motor (Blk)

LLC B

Tank B

Circ B Motor LWPR Carb Motor B Switch

Circ Motor B Switch

Part Number STH12 9/10 197 MODEL 50 (WITH ERC 50 HZ)

Models 50HZ 50HZ

Caution: Disconnect power before working on electrical circuitry. See Serial Plate for Voltage Shown in the OFF Position Power Supply Block

Terminal Strip

Jumper Contactor Air Option Remote Fan Fan Cond Motor Motor

(Black)

RMT Only Liquid Line Solenoid

Contactor Coil

AGT Carb Carb Circ Circ Motor A A A B

C R Agitator Carb A Carb A Circ A Circ B L L/N Earth P/N 0705-101

P/N 020001985 HPCO Pressure ProbeIce 2 Level ProbeLevel Circ B Temp B Circ Temp A Circ Carb A Probe Carb B Probe Suction Temp P/N 020001986 CO Water Pressure Discharge Temp Waterbath Temp Waterbath

198 Part Number STH12 9/10 MODEL 50 (WITH ERC 60 HZ)

Models 60HZ 60HZ

Caution: Disconnect power before working on electrical circuitry.

See Serial Plate for Voltage Shown in the OFF Position

Air Option Contactor

Remote Fan Fan Cond Motor Motor

(Black) (Black)

RMT Only Liquid Line Solenoid

Contactor Coil

AGT Carb Carb Circ Circ Motor A A A B

C R Agitator Carb A Carb A Circ A Circ B L L/N Earth P/N 0705-101

P/N 020001985 HPCO Pressure Ice Probe 2 Level Probe Circ B Temp Circ A Temp Suction Temp Carb A Probe Carb B Probe Carb CO Water Pressure Water Discharge Temp P/N 020001986 Temp Waterbath

Part Number STH12 9/10 199 Super-Chil Wiring Diagrams

MODEL SC180 (120 VAC)

L1 L2 SW4 Optional M Circulator SW1 PS IBC Motor MS SW2 M1 Agitator Start Relay MS MS Motor M5

Fan OL R S Compressor

Run Cap Start Cap Component Legend L1 Line 1 L2 Neutral M Motor MS Contactor PS Pressure Switch IBC Ice Bank Control

200 Part Number STH12 9/10 MODEL SC180 ELECTRONIC IBC

Part Number STH12 9/10 201 MODEL SC340 (120 VAC)

L1 L2 SW4 Optional M Circulator Motor M1 Fan

SW1 IBC Compressor

O/L SW2 Start M2 Agitator Motor

Component Legend L1 Line 1 L2 Neutral M Motor MS Contactor PS Pressure Switch IBC Ice Bank Control

202 Part Number STH12 9/10 MODEL SC340 (120 VAC)

Part Number STH12 9/10 203 MODEL SC900 & SC1000

204 Part Number STH12 9/10 MODEL SC1000 (230 VAC)

L1 L2

M1 Agitator Motor SW1 IBC Compressor

O/L Start

M2 Fan 120 Volt, 60 Hz, 1 Phase Domestic 230 Volt, 50 Hz, 1 Phase Export

Component Legend L1 Line 1 L2 Neutral M Motor MS Contactor PS Pressure Switch IBC Ice Bank Control

Part Number STH12 9/10 205 MODEL SC1000 ELECTRONIC IBC

206 Part Number STH12 9/10 MODEL SC1000 (WITH ERC 50 HZ)

50HZ 50HZ

Part Number STH12 9/10 207 MODEL SC1000 (WITH ERC 60 HZ)

60HZ 60HZ

208 Part Number STH12 9/10 MODEL SC2000 (50 HZ)

Models SC2000AX TS905063-353 50HZSC2000RX TS905064-353 50HZ SC2000WX TS905065-353 Caution: Disconnect power before working on electrical circuitry. See Serial Plate for Voltage Shown in the OFF Position

Power Supply Block

Remote Cond

Contactor

Fan Fan Motor Motor

(Black) (Black) Air Option

RMT Only Liquid Line Solenoid

Refrigeration Contactor Coil Agitator Switch IBC Sensor

HPCO

Agt Motor

Circ Circ Motor A Motor A Switch Optional Terminal Strip

Part Number STH12 9/10 209 MODEL SC2000 (60 HZ)

Models SC2000A TS905060-363 60HZSC2000R TS905061-363 60HZ SC2000W TS905062-363 Caution: Disconnect power before working on electrical circuitry.

See Serial Plate for Voltage Shown in the OFF Position

Air Option Contactor

Fan Fan Remote Motor Motor Cond

(Black) (Black)

RMT Only Liquid Line Solenoid

Refrigeration Agitator Contactor Coil Switch IBC Sensor

HPCO

Agt Motor

Circ Circ Motor A Motor A Switch Optional Terminal Strip

210 Part Number STH12 9/10

WIRING DIAGRAM FRONT DRAW TOWER Grn/Yel Water Switch Blk Red Blk Wht Blk Yel Vio Blk Blu Brn Gry Org Grn Wht Red J20

Blu Red S LD6

Blk

Wht S

Blk

LD5 Red

Wht

Wht J17

Blk

Wht S Blk

LD4

Wht Gry

W Vio

Blu

Blk

Grn

Yel Wht S

J16

Org Red

LD3

Brn Blk

Blk Wht S LD2

Blu

Red S Red LD1 l t r o n o C

Blk

Red White White Wht

Key Board J15

Blk Wht Soda Switch Grn/Yel

Blk Light Switch

OFF-ON OFF-ON

2 CO use) (Optional

Blk

Blk Blk

Wht

Blk

t Blk

h W Grn/Yel

24 VAC

Blk

Wht h W Splice

Part Number STH12 9/10 211 Circuit Schematics

PLUMBING CIRCUIT DIAGRAMS — MODEL 2803 To Tower 3/8" Tube 3/8" 3/8" Barb x 3/8" Tube 3/8" 3/8" Barb x Barb 3/8" Coil From Syrup Syrup Syrup Tanks 1 2 3 4 5 6 Tank Carbonator Carbonator Water Coil Water Circulating Circulating Refrigeration Unit Refrigeration Circulating Circulating Water Pump Water 123456 Dispensing TowerDispensing BIB Syrup

212 Part Number STH12 9/10 PLUMBING CIRCUIT DIAGRAMS — MODEL 11M ROOT BEER Single Tower Plumbing

Installation Kit (020001441)

020001403

Pressurized 00861302 Filtered Water Supply

Primary Carb Pump

Carb Tank

Circ Pump

Part Number STH12 9/10 213 Model 11M Root Beer Dual Tower Plumbing

Installation Kit (020001441)

020001403 00861302 Tee Kit (020001411)

Pressurized Filtered Water Supply

Primary Carb Pump

Carb Tank

Circ Pump

214 Part Number STH12 9/10 Model 11M Root Beer Three Tower Plumbing

Installation Kit (020001441)

020001403

00861302 Tee Kit Tee Kit (020001411) (020001411)

Primary Carb Pump

Pressurized Carb Filtered Tank Water Circ Supply Pump

Part Number STH12 9/10 215 PLUMBING CIRCUIT DIAGRAMS — MODEL 44M Pressurized Water Circuit Diagram Tower Tower Tower Primary Primary Water Supply Water Coil Cooling Condenser To Optional To Water Cooled Water Coil Cooling Pump Circulator L Low Low Switch (optional) Tank Pressure Pressure Coarse Filter Coarse Filter Carbonator Booster Pump Optional Constant Water Pressure Booster Module Constant Pressure Pressure Constant Pump Low Gauge High To Pressure Gauge Booster Module Valve Coil Pressure Pressure Replacement Line Cooling Plain Water Plain Water Tank H Primary Primary Booster High Carbonator Switch Regulator Filtered Water Water Filtered Pressure Pressure Gauge (optional) Fine Filters (55 psi [3.8(55 psi bar]) Optional Pressure Tank (optional) Accumulator Feeder (optional) Phosphate Legend Valve Type to Atmosphere Vent — Electric Solenoid — — Manual Ball Valve — 3-way Ball Valve Valve Relief Pressure — Ball — Check Valve, — — Check Valve, — To Ice To Machine Machine To Coffee Coffee To

216 Part Number STH12 9/10 Pre-mix Plumbing — Six Valve Towers with Connection at Center Island NOTE: Other plumbing configurations are possible. Check tower installation manual before making connections.

Single Tower System Drive-thru or Center Island Tower

6 5 4 3 2 1 A A A A A W

6 5 4 3 2 1

Syrup Cooling 6 5 4 3 2 1 Coils

Syrup Filters (#2 through #11 optional) 6 5 4 3 2 1

6 5 4 3 2 1 Syrup Tanks

Part Number STH12 9/10 217 Two Tower System with Connection at Center Island

Self Serve or Center Island Tower Drive-thru Tower

6 5 4 3 2 1 6 5 4 3 2 1 A A A A A W A A A A A W

6 5 4 3 2 1 6 5 4 3 2 1

Syrup Cooling 6 5 4 3 2 1 Coils

Syrup Filters (#2 through #11 optional)

6 5 4 3 2 1

6 5 4 3 2 1 Syrup Tanks

218 Part Number STH12 9/10 Three Tower System with Connection at Center Island Optional Self Serve Tower Self Serve Tower Drive-thru Tower

6 5 4 3 2 1 6 5 4 3 2 1 6 5 4 3 2 1 A A A A A W A A A A A W A A A A A W

6 5 4 3 2 1 6 5 4 3 2 1 6 5 4 3 2 1

Syrup Cooling

6 5 4 3 2 1 Coils Syrup Filters (#2 through #11 optional)

6 5 4 3 2 1

6 5 4 3 2 1 Syrup Tanks

Part Number STH12 9/10 219 Pre-mix Plumbing — Eight Valve Towers with Connection at Center Island

Single Tower System Drive-thru or Center Island Tower

8 7 6 5 4 3 2 1 A A A A A A A W

87 6 5 4 3 2 1

Syrup Cooling 87 6 5 4 3 2 1 Coils

Syrup Filters (#2 through #11 optional)

87 6 5 4 3 2 1

8 7 6 5 4 3 2 1 Syrup Tanks

220 Part Number STH12 9/10 Two Tower System with Connection at Center Island Self Serve or Center Island Tower Drive-thru Tower

8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 A A A A A A A W A A A A A A A W

87 6 5 4 3 2 1 8 7 6 5 4 3 2 1

Syrup Cooling 87 6 5 4 3 2 1 Coils

Syrup Filters (#2 through #11 optional)

87 6 5 4 3 2 1

8 7 6 5 4 3 2 1 Syrup Tanks

Part Number STH12 9/10 221 Three Tower System with Connection at Center Island Self Serve or Center Self Serve or Island Tower Center Island Tower Drive-thru Tower

8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 A A A A A A A W A A A A A A A W A A A A A A A W

8 7 6 5 4 3 2 1 87 6 5 4 3 2 1 8 7 6 5 4 3 2 1

Syrup Cooling 87 6 5 4 3 2 1 Coils

Syrup Filters (#2 through #11 optional)

87 6 5 4 3 2 1

8 7 6 5 4 3 2 1 Syrup Tanks

222 Part Number STH12 9/10 Carbonated Water Plumbing — Six Valve Towers with Connection at Unit Supplies Carbonated Water to Diet Drink and Provides Conduit Cooling for Products

Single Tower System with Connection at Unit Drive-thru or Center Island Tower

6 5 4 3 2 1 A A A A A W

8 9 W

Pressurized 8 9 W Primary Filtered Carbonator Pump Water Supply

Carbonator Tank Water Feeder Circulator Pump

Part Number STH12 9/10 223 Two Tower System with Connection at Unit Self Serve or Center Island Tower Drive-thru Tower

6 5 4 3 2 1 6 5 4 3 2 1 A A A A A W A A A A A W

8 9 W 8 9 W

8 9 W Primary Pressurized Carbonator Pump Filtered Water Supply

Carbonator Tank Water Feeder Circulator Pump

224 Part Number STH12 9/10 Three Tower System with Connection at Unit Self Serve or Center Island Self Serve or Tower (optional) Center Island Tower Drive-thru Tower

6 5 4 3 2 1 6 5 4 3 2 1 6 5 4 3 2 1 A A A A A W A A A A A W A A A A A W

8 9 W 8 9 W 8 9 W

8 9 W Primary Pressurized Carbonator Pump Filtered Water Supply

Carbonator Tank Water Feeder Circulator Carbonated Water Pump Circuit Legend (Water) Plain Water Carbonated Water

Part Number STH12 9/10 225 Carbonated Water Plumbing — Eight Valve Towers with Connection at Unit

Single Tower System with Connection at Unit Drive-thru or Center Island Tower

8 7 6 5 4 3 2 1 A A A A A A A W

8 9 W

Pressurized 8 9 W Primary Filtered Carbonator Pump Water Supply

Carbonator Tank Water Feeder Circulator Pump

226 Part Number STH12 9/10 Two Tower System with Connection at Unit Self Serve or Center Island Tower Drive-thru Tower

8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 A A A A A A A W A A A A A A A W

8 9 W 8 9 W

8 9 W Primary Pressurized Carbonator Pump Filtered Water Supply

Carbonator Tank Water Feeder Circulator Pump

Part Number STH12 9/10 227 Three Tower System with Connection at Unit Self Serve or Center Island Self Serve or Tower (optional) Center Island Tower Drive-thru Tower

8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 A A A A A A A W A A A A A A A W A A A A A A A W

8 9 W 8 9 W 8 9 W

8 9 W Primary Pressurized Carbonator Pump Filtered Water Supply

Carbonator Tank Water Feeder Circulator Carbonated Water Pump Circuit Legend (Water) Plain Water Carbonated Water

228 Part Number STH12 9/10 PLUMBING CIRCUIT DIAGRAMS — MODEL 50M Pressurized Water Circuit Diagram Tower Optional Constant Water Pressure BoosterModule Tower Primary Primary Dispensing Dispensing Water Supply Water Dispensing Tower Condenser Cooling Coil Cooling Coil Cooling Coil To WaterCooled Pump Pump Syrup Wash Tray Danish Steamer To Filet Bun Steamer To Pump “A” Pump “B” Circulator Circulator Circulator L Low Switch Pressure Pressure Filter Coarse Booster Pump By-pass (Export only) Carbonator Tank “A” Carbonator Tank Carbonator Tank “B” Carbonator Tank Constant Pressure Constant Pump Gauge High Low Pressure Gauge Pressure Booster Module Replacement Line To Plain Cooling Coil Cooling Coil Water Valve Regulator Low Pressure Pump Pump Tank Pump “A” Pump H Carbonator Booster High Switch Pump “B” Carbonator Pressure Pressure L Low Filtered Water Filtered Water Pressure Gauge Switch Pressure Pressure Fine Filters By-pass (Export only) Tank Accumulator Feeder Phosphate at (3.855 psi bar) Legend Valve Valve Type Ball to Atmosphere Vent — Electric Solenoid — — Manual Ball Valve — 3-way Ball Valve — Pressure Relief — — Check Valve, — — Check Valve, — Required with Booster Module To Ice Machine Optional Pressure Regulator Set To Coffee Machine

Part Number STH12 9/10 229 CO2 Gas and Compressed Air Circuit Diagram Tank “B” Tank Carbonator Legend — Manual Shut-off Valve Ball Valve, Check — — Manual 3-way Ball — Connection for Tank “A” Tank Carbonator Sugar Free Line & Disconnect (1 bar) (1 Regulator Set at 15 psi Low Pressure Sugar Base Lines & Disconnects Shut-off to Shut-off 2 CO Carbonator Tank Set (4.1 bar) at 60 psi Optional Medium PressureRegulator Change-over Valve

2 2 CO AB over Valve Air/CO Optional Change- Shut-off Valve Shake Machine Tank Set at Tank 2 Optional Bulk Sugar Base Lines & Disconnects Pressure Switch CO “ON” = (4.870 psi bar) “OFF” = 90 (6.2“OFF” psi bar) 90-100 psi (6.2-6.9 bar) Tank Tank 2 “B” Optional CO Regulators 2 Optional (6.2-6.9 bar) Tank Tank Air Compressor Air Shake 2 “A” Set at 90-100 psi Machine Optional CO Optional CO

230 Part Number STH12 9/10 Ice/Beverage Units Diagrams

SERVEND RECOMMENDED PLUMBING S-250M Plumbing Diagram

1234 5678

Left Flex Right Flex Manifold Manifold

Manifold: Change to carbonated or non-carbonated water. 1. Rotate plunger 180° using a 5/32" Allen wrench. 2. Pull plunger out to get non-carbonated water. 3. Push plunger in to get carbonated water. 4. Turn plunger back 180° to lock.

Part Number STH12 9/10 231 MII-250 Plumbing Diagram

Left Flex Right Flex Manifold Manifold Not in Use Not in Use

232 Part Number STH12 9/10 MII-302 Plumbing Diagram

Left Flex Right Flex Manifold Manifold

Manifold: Change to carbonated or non-carbonated water (S2-SII only). 1. Rotate plunger 180° using a 5/32" Allen wrench. 2. Pull plunger out to get non-carbonated water. 3. Push plunger in to get carbonated water. 4. Turn plunger back 180° to lock. For assistance call (812) 246-7000

Part Number STH12 9/10 233 This Page Intentionally Left Blank

234 Part Number STH12 9/10

Manitowoc Foodservice 2100 Future Drive Sellersburg, IN 47172, USA Ph: 812-246-7000 Fax: 812-246-7024 Visit us online at: www.manitowocfsg.com