Automatic Heat/Cool Changeover Status LED System Leds Damper

TB-206 Model NCM 300 Zone Control System

LEAVE THIS BULLETIN ON THE JOB SITE FOR FUTURE REFERENCE The NCM 300 panel provides intelligent control of Heat 20 43 140 C1 D1 R4 R8 15 25 40 46 130 150 R6 ZONE 3 SUPPLY Pump or Conventional forced air zoning systems at a MOTOR 10 30 37 49 120 160 R5 AIR M6 5 35 34 52 110 170 R10 SENSOR maximum of three zones using motorized dampers and 2nd STAGE LOW TEMP HIGH TEMP M4 TIMER LIMIT LIMIT U2 R9 2 M2 practically any off-the-shelf heat/cool thermostat. With R7 NCM-300 D2 R11 M1 R13 1 C4 K1 C2 features like automatic changeover, one zone setback ZONE 2 R12 ZONE 3

C3 U1

MOTOR N T'STAT

R15 CPU R18

C U3 M6 R14 C feature, field selectable timers and supply air sensing R17 RESET

R19 o

p M A

R16 y

M4 L W

r R23 L ig 3

r R21 h

capability, the NCM 300 provides a high level of M2 K2 ig Y t 0

R24 h R20 E t 0

D4 W M1 s R

r R25 C

R22

Y1 e V /

performance in a non-expandable zone control panel. C5 s A

R26 e R29 G C e r

ZONE 1 v I C6 C7

R28 2 r

MOTOR d 0 R30

Perfect for new construction and retro-fit applications. 0 ZONE 2 R27 2 M6 K3 1 T'STAT R31 R34 D5 . M4 2 R32 C Z1 Controls two or three air zones with C8 + Zone Capacity M2 R33 W R36 TIMER M1 R38 U4 R40 Y most 24vac Power Open/Closed or F1 D6 RESET OFF < > ON R37 R39 R 24 VAC 1 FAN DELAY OFF < > ON R35 S Spring Assisted motorized dampers. T'FORMER PURGE 60s < > 90s R42 G R AUTO CHANGEOVER 2m< >5m R43 SYSTEM HEAT PUMP< >GAS ZONE 1 K4 FAN HYDRO < > GAS U5 R41 T'STAT Will control heat pumps with O or B D7 OP SYS 0m< >20m Compatible C SAS OFF < > ON R46 C NOT USED HVAC Systems type reversing valves and electric R44 R47 W R49 SYSTEM R45 Y W2/E K5 R48 R auxiliary heat. Will also control 1 or 2 D8 LED1 STATUS R50 G W1/B R52 LED2 SUPPLY AIR LIMIT stage gas or oil fired furnaces, with O R51 R54 EM Y R53 LED4 ZONE 3 OPEN R55 ONE single stage electric air conditioning. G K6 R59 ZONE D9 LED3 ZONE 2 OPEN RH R57 R58 LED6 ZONE 1 OPEN Compatible Regardless of the application, use RC R56 R60 LED5 W2 / EM R61 K7 R63 Thermostats standard 24vac, 4/5 wire heat/cool RC/RH LED7 W1 / REV VALVE LINK D10 R62 mechanical or electronic thermostats LED8 COMPRESSOR R65 R in all zones! Mercury, Battery, and LED9 FAN CONTROLS INC. CONTROL SYSTEM Englishtown, NJ Power robbing types that draw less Figure 1. NCM300 panel than 20 ma of current can also be used. Compatible with a select type of heat pump thermostat in zone 1 only. Thermal The NCM300 has a thermal circuit Breaker breaker in place of a fuse, and Automatic The NCM300 panel features automatic protects the panel from shorts in the Heat/Cool changeover from any thermostat thermostat and damper field wiring. It Changeover allowing for individual zone comfort does not protect against shorts in the from the HVAC system. HVAC system wiring. CAUTION: When the circuit breaker is The STATUS LED blinks slowly during Status LED tripped it will get quite hot. To reset the normal operation to indicate the micro breaker, locate and repair the short, processor is operating properly. remove the 24vac power for 30 System LEDs A total of 9 LED’s indicate the system seconds and then restore it. status and mode of operation. Watch Dog The panel has a built-in circuit that Circuit monitors the computers performance LEDs labeled Zone 1 thru Zone 3 Damper LEDs and resets the panel if an error occurs indicate which dampers are energized in operation or due to power failures. to open. Indoor Fan Any zone can activate the indoor fan Operates on 24VAC power supplied Operating Control and only the dampers in zones calling from a separate transformer. A single Power for continuous fan operation will open. 40VA transformer can power all three Continuous fan operation will only zones, with a total of four dampers. occur when there are no heating or 8va draw per damper. cooling calls. P/N 090375A0206 REV. J Copyright C EWC Controls 2000 All Rights Reserved EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-446-5362 E-Mail- [email protected] Built-In Timer The panel has built-in timers that Timer Reset Momentarily pressing the TIMER Settings insure reliable operation. BUTTON RESET button clears the built-in TIMER timers controlling the minimum run *Short Cycle Timer 2 minutes, fixed. RESET timer, short cycle timer, W2 timer, and *Minimum Run Timer 2 minutes, fixed. the changeover timer. This enables *Changeover Timer 2 or 5 minutes you to test the installation faster. . CPU Reset Caution should be observed when *Opposing System 20 minutes, fixed. BUTTON using this button. Service Timer SYSTEM RESET Momentarily pressing the CPU RESET *Second Stage 5 to 35 minutes, button resets the computer. Heating Timer adjustable. Selecting the Options Using the DIP Switches Minimum Run When a call is activated the panel will 7 DIP switches allow you to select the features that will Timer run the system in that mode for a allow the panel to operate your HVAC system. minimum of 2 minutes. FAN DELAY DIP switch 1 allows the NCM300 to OFF < > ON Short Cycle When the system is satisfied, the operate the fan during the 60/90 second purge mode. Works in heat and cool Timer panel will not resume the same call for mode. Set the switch to OFF to allow the a minimum of 2 minutes. system to operate it’s own fan purge. DIP switch 2 selects a purge time of 60 Changeover A built-in timer prevents the system PURGE 60s < > 90s seconds or 90 seconds. The damper(s) on Timer from rapidly switching between the last zone(s) calling will be held open heating and cooling. At the end of a for 60 or 90 seconds. call, an adjustable 2 or 5 minute timer is started and the panel will not switch AUTO 2m < > 5m Select between 2 or 5 minutes of to the opposing system until the timer CHANGEOVER change over time delay. The panel will has expired. not switch to the opposing system Stage Two until the timer has expired. Heating Timer The W2 TIMER sets the total amount SYSTEM TYPE Select the type of HVAC system the 20 of time delay before second stage HEATPUMP < > GAS 15 25 heating is energized. 1st stage heat panel is controlling. Heat Pump or 10 30 will stay energized when 2nd stage Gas/Oil/Hydronic heat with A/C. 5 35 heat activates. FAN HYDRO < > GAS Select the GAS position when setting W2 TIMER up for gas or heat pump applications. Select HYDRO when setting up for Heating and Cooling straight electric or hydronic heating Limit Settings The Heating Limit potentiometer sets applications. 140 the supply air temperature at which 130 150 the heating is cycled off and the fan OP SYS 0m < > 20m Select 20 minutes of time delay for 120 160 continues to run, until the supply air opposing system calls or, 0 minutes 110 170 temperature has dropped below the and the panel will work on majority HEATING LIMIT heating limit set point. rules only.

The Cooling Limit potentiometer sets 43 SAS OFF < > ON Select ON if you are using a Supply 40 46 the supply air temperature at which Air Sensor with the NCM300. Select 37 49 the cooling is cycled off and the fan OFF if you have not installed a sensor. continues to run, until the supply air 34 52 NOTE: DIP SWITCH #8 HAS NO FUNCTION COOLING LIMIT temperature has risen above the AND IS NOT USED! cooling limit set point.

2 EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-446-5362 E-Mail- [email protected] INSTALLATION INSTRUCTIONS WARNING: THESE PANELS ARE DESIGNED FOR USE WITH 24VAC. DO NOT USE OTHER VOLTAGES! USE CAUTION TO AVOID ELECTRIC SHOCK OR EQUIPMENT DAMAGE. ALL WIRING SHOULD BE DONE TO LOCAL AND NATIONAL CODES AND ORDINANCES. USE 18 AWG SOLID COPPER, COLOR-CODED, MULTI-CONDUCTOR THERMOSTAT CABLE. The NCM300 zone control panel requires standard 1 stage heat/cool thermostats in all zones, regardless of the application. 2nd stage heat output is controlled by an adjustable timer on the panel. The NCM300 will work with a select type of heat pump thermostat in Zone 1 only. Easy thermostat wiring diagrams are shown below. Thermostat Wiring HEAT PUMP THERMOSTATS

ZONE THERMOSTAT ZONE 1 WHITE-RODGERS FAN SYSTEM AUTO ON COOL OFF HEAT T'STAT 1F94-371

60 70 ZONE THERMOSTAT 8 50 0 80

70 #1

60 ZONE 1 C E W1 W2 Y1 R G E2 50 T'STAT * C W Y R G C W W Y Y R R G G EM

EM ONE Program thermostat for ZONE * “Heat Pump 3 mode”. ONE Add jumper wire as shown. ZONE Set the “E2/P” switch to E2.

Figure 2c. Zone 1 will accept heat pump style thermostats with a constant 24vac Figure 2a. Typical heat/cool thermostat output during Emergency Mode, and/or separable W1 and Y terminals. wiring in zone 1, 2, or 3. Use a programmable White Rodgers 1F94-371 or Honeywell Model T8011 programmable or T8411 non programmable. Other compatible Models include the White Rodgers 1F93-380, 1F95-377, and the CTC Model# 43403. ZONE THERMOSTAT ZONE 1 FAN SYSTEM T'STAT AUTO ON COOL OFF HEAT Honeywell #T8011 or T8411 ZONE THERMOSTAT C 60 70 8 50 0 80 W 70 60 Hold Select o Em. Ht. 50 Aux. Ht. 4:31pm 72 Y ZONE 1 Fr T'STAT R W Y R G

G FAN SYSTEM Auto On Cool Off Heat Em. Ht. EM Optional VAC or RES C W1 E Y W2 R O G L B ONE SWITCH ZONE 3 2 * RED C 4 LED W Figure 2b. Typical heat/cool or heat pump application ** wiring in zone 1, with separate Vacation or Y Emergency Heat switch. Part #VAC or RES. R G Zone 1 will also accept heat pump style thermostats EM with a constant 24vac output during emergency mode, ONE *NEW JUMPER and separable W1 and Y terminals. These thermostats ZONE **REMOVE JUMPER can be field configured & programmed to conventional heat / cool operation. Figure 2d. Wiring for heat pump thermostat in zone 1. A White Rodgers Model 1F94-371 programmable is NOTE: Constant L output in the Emergency heat mode. Remove the factory jumper compatible with the NCM300. A Honeywell T-8011 between W1 and Y terminals and install a programmable or T-8411 non-programmable is also new jumper between W1 and E terminals. compatible. These versatile thermostats can be set up in Conventional mode, and still allow use of the Heat pump features. (i.e. Emergency Mode)

EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-635-8646 E-Mail- [email protected] 3 System Wiring The NCM300 panel was designed to Heat Pump Typical heat pump system wiring with electric resistance backup heat. Wire up the reversing be easy to understand and wire up. with O Type valve to either O or W1/B, depending on your We have provided several typical Reversing Valve type of system. Applies to air cooled or diagrams to review. Your actual field geothermal / ground source systems. wiring may vary.

AIR HANDLER WITH 1 0R 2 STAGE Typical gas/electric system wiring ELECTRIC RESISTANCE BACKUP HEAT NCM300 Single using a single transformer is shown HEAT PUMP Transformer below. Note the jumper (link) 1 STAGE W1 W1 Gas/Electric between RC and RH. There is no SYSTEM Systems need to install your own jumper. X / W W2 W2 W2/E W1/B Y Y Y * O OorB Y GAS/OIL G G G Furnace NCM300 C RH 1or2 STAGE C C RC OUTDOOR R CONDENSING R R RC/RH UNIT SYSTEM LINK

W2 W2 W2/E W1 W1 W1/B Y O Y1 Y1 Y * Connect either the O or the W1/B. C G G G In a typical O type reversing valve system, there RH will not be a connection to the W1/B terminal! C C RC

R R RC/RH Figure 3c. Conventional Heat Pump System LINK

Figure 3a. Simple Fossil Fuel Application

FOSSIL FUEL SET-UP w/OAT * Note: Your Air Handler may include a W terminal. That means it may have it’s own isolation circuit. If you can confirm this, simply connect the W1/B terminal to the W HEAT PUMP OUTSIDE AIR 1 STAGE T’STAT 25* F. Two terminal on the air handler. Do not cut the Rc / Rh Part# BTDP jumper. Wire up your Oil Burner, Circulator relay, or X Transformer Hydronic Zone valve to the isolation contacts or wires O B R W GAS/OIL Systems provided in the air handler. (Follow dashed lines)The fan Y Furnace C is controlled via time delay relay inside the air handler. 1or2 STAGE R TYPICAL FAN CENTER W2 TERMINAL NCM300 W1 OUTDOOR BLOCK Discharge Air Y CONDENSING T-stat 135* F. UNIT *W W* SYSTEM G W2/E C Y Y W1/B R O Y G G Y C C C G RH R R RC NCM300 SYSTEM T T RC/RH W2/E LINK ISOLATION W1/B TERMINALS O OR WIRES NOTE: Y G Discharge Thermostat can RH be adjustable Snap-disc RC Cut Rc/Rh type, or Remote bulb type. OIL T Opens on temperature rise BURNER Jumper RC/RH Either One to lockout the “Y” circuit. LINK PRIMARY Range = 100 - 200 F. Not Both CONTROL T

CIRCULATOR T RELAY OR HOT WATER ZONE VALVE T CONNECTION Figure 3d. Single stage heat pump and 1or 2 stage furnace. Figure 3b. 4 EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-635-8646 E-Mail- [email protected] DAMPER WIRING Note: All zone dampers default to the "OPEN" 2 Wire Spring Return Motor Wiring position after a purge delay has occurred. Dampers also default “OPEN” during changeover & short cycle delays, and when EWC Controls Spring Return Motor Wiring all zone demands are satisfied, and no MA-ESR signals are detected from the thermostats. REFERENCE THESE DIAGRAMS PRIOR TO M6 INSTALLATION AND POWER WIRING. DOING SO WILL Either one{ M4 Not both SAVE TIME AND LABOR LATER ON. M2 NC NO C M M M1 ZONE MODULE DAMPER Auxilary MOTOR TERMINAL BLOCK SPDT End Switch DESIGNATION & FUNCTION Dry Contacts Rated for ZONE 24vac only MOTOR A Spring Open Damper is wired to M1 & M6 . Terminal M6 24vac to Close a damper(s) M6 A Spring Close Damper is wired to M1 & M4 Terminal M4 24vac to Open a damper(s) M4 Figure 5 Terminal M2 Constant 24vac HOT M2 Terminal M1 Common 24vac M1 Multiple MA-ND & MA-URD Damper Wiring on a Single Zone

ZONE MOTOR .

6 M6 Figure 4a M4 4 M2 All Models MA-ND & MA-URD Damper Wiring 1 M1 ZONE MOTOR M6 6 M4 6 4 M2 4 1

M1 1 Patented Optical Damper Motor Actuators Patented Optical

Figure 4b 6 Damper Motor Actuators or new Min/Max Actuators 4 All Models SMDL & BMDL Damper Wiring 1

ZONE MOTOR

4 M6 Figure 6

2 M4 On all these dampers and most older style

1 M2 M1 dampers, including competitor’s dampers, always wire up number to number. Patented Optical Contact EWC Controls Technical Support Damper Motor Actuators when you are on the job site for assistance Figure 4c with damper wiring.

Do not overload your transformer!

5 EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-446-5362 E-Mail- [email protected] SERVICE GUIDE

Measure 24VAC at all damper M1 and Some Helpful All voltage measurements on the panel Check 24VAC Guidelines should be made with the ground lead Power M2 terminals and all T-stat R and C of your meter on terminal C of the terminals. See Table 1 if any of these 24VAC input terminals. voltages are incorrect. All VAC measurements at the HVAC HVAC System If the HVAC LED indicators are system terminals (W1/B, O, Y, W2/E & Not Responding responding properly, but the system G) should be made with the meter Properly appears to be malfunctioning, check ground lead on the system's C terminal that the HVAC system is wired correctly at the HVAC system. and that the DIP switches have been properly set. The STATUS LED should blink at If the HVAC LEDs are not responding Using the LED Indicators 1second on / 1 second off, to indicate properly, check the calls on each zone the microprocessor is operating thermostat. If the calls indicate that the properly. HVAC system should be activated and The SUPPLY AIR LIMIT LED will is not, press the TMR RESET switch to illuminate if the panel senses a reset the timers. Also check that the discharge temperature in excess of the DIP switches have been properly set. If high or low limit set points. The LED will the problem persists, see Table 3 for blink rapidly if the sensor is open or trouble shooting help. shorted. The panel will function normally but with no supply air Table 1. Detecting 24VAC Shorts temperature control, until the open or Detecting 24VAC Short The STATUS LED will be off, you will short is repaired. measure 24VAC at the transformer The ZONE damper LED’s will terminals R & C, but not at any damper illuminate to indicate which dampers M1&M2 terminals, or any zone thermostat R & C terminals. should be open. CAUTION: The thermal fuse will be The W1/REV VALVE LED indicates that very hot. the panel is in the 1st stage heating mode. Isolating Remove the power to the panel and 24VAC Shorts allow the thermal poly fuse to cool The W2/EM LED indicates 2nd stage Panel or Wiring down. heat or Emergency heat has been energized. Remove the wire at each zone thermostat R terminal and test if the The COMPRESSOR LED indicates the short still persists by restoring power to compressor is energized. the zone panel and testing as The FAN LED indicates the fan is described above. If the short dis- energized. appears, check the zone thermostat wiring and the thermostat itself. This Dampers Not If the Zone LED indicators are applies if the thermostat requires the Responding illuminated but the dampers appear to 24 volt (C)common, or the R wire could Properly be malfunctioning, check the damper be shorted to ground. field wiring. If the short still persists disconnect all If the ZONE LED’s are not responding the wires at each damper terminal (M1, properly, check the calls on each zone M2, M4 & M6). Restore power and test thermostat. If the calls indicate a as described above. If the short clears, damper should be energized and is check the damper wiring and the not, press the TIMER RESET button to dampers for shorts with a continuity reset the timers. If the problem tester. If the short still persists, call the persists, see Table 2 for service help. technical support hot-line.

6 EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-446-5362 E-Mail- [email protected] Table 2. Detecting Damper Problems Damper LED On Check the damper wiring to insure it is Testing Damper For a RDN/SMDL/BMDL damper, But Damper Not correctly wired. Be sure the wires are connect 24VAC common to terminal Responding Motors secured in the terminals. Test the 1, and 24VAC to terminals 2 and 4. damper motor to insure it is properly The damper should open. Remove operating. If the problem still persists, 24VAC from terminal 4 and the contact technical support. damper should close. For a BMD/SMD/ND/URD damper, NCM300 Check that the STATUS LED is connect 24VAC common to terminal Damper LED blinking. If it is not, the panel may have 1, and 24VAC to terminal 4 and the Not Responding been placed in the Contractor Test damper should open. Remove inadvertently by holding the TMR 24VAC from terminal 4 and apply RESET switch for 15 seconds. Press 24VAC to terminal 6 and the damper the CPU RESET switch to cancel the should close. Contractor Test. For a power close spring open Press the TMR RESET switch to clear damper, connect 24VAC to the two motor terminals, and the damper any timers that may be keeping the call should CLOSE. Remove the 24VAC off and the damper from not and the damper should OPEN. For a responding. power open damper, the action will Check the voltage at each zone be reversed. thermostat terminal W, Y and G terminals to insure the damper should be activated. If the problem still persists, call the technical support hot-line.

Table 3. Detecting Heating, Cooling and Fan Problems

W1/B, O, Y, Check the HVAC wiring to insure it is Press the TMR RESET switch to clear the W2/E & G LEDS correctly wired. Be sure the wires are timers that may be preventing the call. On But System secured in the terminals. Check that The panel could be in minimum run time, Not Responding there is 24VAC at the RC and RH short cycle delay, changeover delay or terminals. Use the HVAC system opposite system timing mode. common (C) for the ground lead of your meter. Check that RH and RC are If the system still does not respond, connected if the system uses a single measure the voltage at each zone transformer. thermostat terminal W, Y, EM & G to insure they are correct and a call is in For a gas/electric system test the order. HVAC by shorting terminals R and W1/B together to activate the heater, Measuring Heat/Cool thermostats will apply RC to Y to activate the compressor and Thermostat 24VAC to the W1 terminal during a RC to G to activate the fan. If the HVAC Voltages heating call. During a cooling call, system has responded properly, call 24VAC is applied to both Y and G. EWC technical support. During a continuous fan call, 24VAC is For a heat pump system test the applied to the G terminal. heating by shorting terminals R to Y, Be sure the RC and RH terminals at the W1/B and G. For a cooling test short R thermostats are jumped together if your to Y, O and G. specific installation requires it.

LEDs and Check that the STATUS LED is blinking System Not to insure the computer is operating Responding properly, press the SYSTEM RESET switch if it is not.

EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-446-5362 E-Mail- [email protected] 7 20 43 140 C1 D1 R4 R8 15 25 40 46 130 150 R6 ZONE 3 SUPPLY MOTOR 10 30 37 49 120 160 R5 AIR M6 5 35 34 52 110 170 R10 SENSOR 2nd STAGE LOW TEMP HIGH TEMP M4 TIMER LIMIT LIMIT U2 R9 2 M2 R7 NCM-300 D2 R11 M1 R13 1 C2 C4 K1 R12

ZONE 2 ZONE 3

C3 U1

MOTOR T'STAT

R15 CPU R18

C C U3 M6 R14 C

R17 RESET o

R19

p M A y

R16 L M4 r R23 W L i g 3

r R21 h i g t M2 K2 0 Y

h E R24

R20 t 0 W

D4 s

M1 R r C

R25 R22 Y1 e V / s C5 A R26 e G C R29 e r v

ZONE 1 I

e C6 C7 2 R28 r d

MOTOR 0 R30 0 ZONE 2 R27 2 M6 K3 1 R34 T'STAT D5 R31 . M4 2 R32 C Z1 C8 + M2 R33 W R36 TIMER M1 R38 U4 R40 Y F1 D6 RESET OFF < > ON R37 R39 R 24 VAC 1 R35 S FAN DELAY OFF < > ON T'FORMER PURGE 60s < > 90s R42 G AUTO CHANGEOVER 2m< >5m R R43 SYSTEM HEAT PUMP< >GAS ZONE 1 FAN HYDRO < > GAS K4 U5 R41 T'STAT D7 OP SYS 0m< >20m C SAS OFF < > ON R46 C NOT USED R44 R47 W R49 SYSTEM R45 Y W2/E K5 R48 R D8 LED1 STATUS R50 G W1/B R52 LED2 SUPPLY AIR LIMIT O R51 R54 EM Y R53 LED4 ZONE 3 OPEN R55 ONE G K6 R59 ZONE D9 LED3 ZONE 2 OPEN RH R57 R58 LED6 ZONE 1 OPEN RC R56 R60 LED5 W2 / EM R61 K7 R63 RC/RH LED7 W1 / REV VALVE LINK D10 R62 LED8 COMPRESSOR R65 R LED9 FAN CONTROLS INC. CONTROL SYSTEM Englishtown, NJ

Blow-up view of NCM-300 showing Factory Dip Switch settings.

OFF < > ON 1

S FAN DELAY OFF < > ON PURGE 60s < > 90s RECORD YOUR OWN DIP SWITCH AUTO CHANGEOVER 2m< >5m SETTINGS HERE SYSTEM HEAT PUMP< >GAS FAN ELEC < > GAS OP SYS 0m< >20m SAS OFF < > ON NOT USED

8 EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-446-5362 E-Mail- [email protected]

R R C I E O R T T T 0 0 0 0 0 0 0 0 0 0 0 0 A A A F 8 7 6 5 8 7 6 5 8 7 6 5 H E E E T

H H H M M M T E E E C F F F D T T T F F F E O S S S O O O E Y Y Y L L L L S S S

O O O N O O O E C C C E

G T T T I S A A A G G G D S I T T T U E S S S O

O O O . D V R R R T

E A M M M E

R R R O 80 80 80 G N N N R E E E O O O O A N

N 0 N 0 N 0 7 7 7 Y Y Y A H H H T A A A O O O

F F F

T T T M

T T T

0 0 0

U U U 6 6 6 S A A A A

E E E

O 0 0 0

5 5 5 L D N N N O

W W W D E I O O O T T N

Z Z Z N . U A E C P A

M A C E

P V I S E 4 U E S 2 H Q U

H : R S T I G E O

N G W I K E E A N N C

N T M O R E L 2 1 O C W Y R G C W Y R G C W Y R G E O Z R 1 A 2 Y 3 S T

T T

H O L O A A A E E E P R T S T W U V S T I N N N P . S S N S l A ' ' J ' O O O U C E T T T N Z Z Z S

N S e , I

n S 0 3 2 8 9 3 4 5 9 0 4 2 3 0 9 2 3 1 6 7 9 8 0 4 5 9 8 0 1 3 2 5 1

w n 6 5 1 9 1 1 1 1 1 2 2 2 2 3 3 3 3 4 3 4 4 4 4 4 4 4 5 5 5 5 5 6 6 6 6 6 L o o R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R t O t a h

R s - r T i r l P N e g . o

l O n l b l C E o o R r

m t o c M d

u r n T n e I t E n o 7

s a V M

C c I R L 2 3 4 A n e l

L N N N U 8 A r U U U

O L

6 i a E E E h R V . S o R

C I P P P c 4 c S s V W m A O O O 8 7

R R

E 5

E a o M S e C 3 3 . l Y > S 3 2 1 1 R

A E R 5

1 e L R R O

c < e U D

P U

U E E E P / / 4 o r > m T

i t M

N n 2 P N N N C

N < A

2 1 C G

O a O P R T U

O O O o S A w

e 2 s >

NCM300 Ver 1.2 E M A S S Z Z Z W W C F

n O 0

r V D i < m U r G Copyright EWC/ACI 2002 n 9 0

0 O P 6 F N e >

E D o

A t F 0 T 1 O > t r < <

5 E

t P G

O 1 d >

< S s M N

E I O c o T T

e C Y 1 2 4 3 6 5 7 8 9 R 0 T E U < m

A 1 I H l R

T E E 0 U u D D D D D D D D D

e H E T

M Y F L D

d M H E E E E E E E E E S S F C S P L E Y O E

d o E 0 b G

M L L L L L L L L L 5 Y I O D H N n t I E E

G 0 T

C O /

H S D

3 n C

R T

S S T N N 0 a 1 R R

0 r

0 P 1 U U Y A

A A

l o 2

2 3 F P A S F O S

1 e N s 3

u t c C C 5 O t 9 - 2 3 7 6

4 e - 2 4 i o 5 5 5 3 > T 5

R e t

6 d l R R R l R P h

< 4

M o M r u s

T 5 7 6 1 0 2 8 7 1 F

E 1 I

3 0 1 1 1 2 2 2 2 2 3 T F 1 Z S

M c 4 o I A

R R R R R R R R R

g m C O L W l

0 r O M 0 , 0 n N L a 3 4 5 7 8 9 1 1 2 3 4 5 6 7 4 i e 4 N E 7 3 d r K D K D K D K D K D K D K D 3 n I 3 E i b - T 6 e o i + D w S 0 d m 5 t

3 3 l 5 Y M l o a u E R 2 H G S A n c n R A

I E 0 1 T C 4 6 5 4 6 7 2 M S 5 L 1 2 3 4 5 I 8

R d T R R R R R R C n O N 5 2 1

5 0 R 1 l 1 W F T e N P R d 3 2 1 M O E R R R O

C E H O O O M E E E A O H T C o T T T V K R N N N R

R L S / / O O O N

4 O O O O I Y C 2 F Z Z Z M M M L ' C S E M R T 6 4 2 1 6 4 2 1 6 4 2 1 R E B H C R C R O Y G / / I M M M M M M M M M M M M R R 2 1 W W W R E A M V R 0 O 4

F , S V 4 N 2 A R r E 2 1 T 1 C o I C

R G Y W W e G L c R A I a T T O n / S C r

u E

1 4 4 6 6

1 r A M M C O N C N L F 1 1 2 G R C o r

E Y G W 1 W e p g G D n i m D N R r i a I R N D O W S

R U

T r R S O I N o S E t - D N E E o A - T U D M M D Y C U N N O O C

EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-446-5362 E-Mail- [email protected] 9

B R R C I E O t. R T T H 0 0 0 0 0 0 0 0 L A A t . F 8 7 6 5 8 7 6 5 H E E T c m

H H M M E le T M e E E t C E F F a S D T T T G F F e S E O H S S O O E Y Y Y ff S L L L O S S

O O N O l O O E o ld C C o E o

C G T T T H I S A A A R G G D S I T T T U E 2 S S S R O

W E O O O . D V o R R P T

E A M M M R Y 2 E M

R R R O G

0 0 E 8 8 7 U N N R E E E Fr O P * m O O A J N N N

0 0 p

7 7 E Y Y A 1 H H H T

A A M * O O :3 *

F F T T T M

T T

0 0

1 U

n U U 6 6 t. t. S O A A A V J H N

N H E E E

O . 0

0 x.

A to 5 5 L m u F O u E A D N N N A O

W W W D E I M C O O O T E T E N

Z Z Z N N . R U A * E * C P A *

M A C E

P V I S E 4 U E S 2 H Q U

H : R S T I G E O

N G W I K E E A N N C

N T M O R E L 2 1 O C W Y R G C W Y R G C W Y R G E O Z R 1 A 2 Y 3 S T

T T

H O L O A A A E E E P R T S T W U V S T I N N N P . S S N S l A ' ' J ' O O O U C E T T T N Z Z Z S

N S e , I

n S 0 3 2 8 9 3 4 5 9 0 4 2 3 0 9 2 3 1 6 7 9 8 0 4 5 9 8 0 1 3 2 5 1

w n 6 5 1 9 1 1 1 1 1 2 2 2 2 3 3 3 3 4 3 4 4 4 4 4 4 4 5 5 5 5 5 6 6 6 6 6 L o o R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R t O t a h

R s - r T i r l P N e g . o

l O n l b l C E o o R r

m t o c M d

u r n T n e I t E n o 7

s a V M

C c I R L 2 3 4 A n e l

L N N N U 8 A r U U U

6 i a E E E h R V . S o R

C I P P P c 4 c S s V P W m A O O O 8 7

R R

E 5

E a o M S e C 3 3 . l Y > S 3 2 1 1 R

A E R 5

1 e L R R

c < e U D

P U

U E E E P / / 4 o r > m T

i t M

n N 2 P N N N C

N < A

M 2 1 C G

O a O P T U R

O O O o A S w

e 2 s

NCM300 Ver 1.2 > E M A S S Z Z Z W W C F

n 0

r V D i < m U r

E D o

A t U 0 F 1 T O > t r < <

5 E

t P G

O 1 d >

< S s M N

E I O c o T T

e Y 1 2 4 3 6 5 7 8 9 R 0 T E U <

m A 1 I H l R 0

T E E 0 U u D D D D D D D D D

e H E T M Y

F L D

I 1

P d M H E E E E E E E E E S S F C S P L E Y O E

d o 0 b E G

M L L L L L L L L L 5 Y I O D H N n t I E E

G 0

C O

H S D

3 n C

R T

S S T N N 0 a 1 R R

0 r

d 0

P 1 U U Y A

A A

l o 2

2 3 F P A S F O S

1 e s N 3

u t c C C T 5 t O 9 - 2 3 7 6

4 e -

2 4 i o 5 5 5 3 5

R > e t 6

d l R R R l R P h

4 <

M A o

M r u s T 5 7 6 1 0 2 8 7 1

E 1 I F

3 0 1 1 1 2 2 2 2 2 3 T 1 Z S

M F c 4 o I

R R R R R R R R R

g m C L W O l

0 r O M 0 , 0 n N L E a 3 4 5 7 8 9 1 1 2 3 4 5 6 7 4 i e 4 N E 7 3 d r K D K D K D K D K D K D K D 3 n I 3 i b - T 6 e o i + D w S 0 d m 5 t

H 3 3 l 5 Y M l o a u E R 2 G S A n c n R A

I E 0 1 T C 4 6 5 4 6 7 2 M S 5 L 1 2 3 4 5 I 8

R d T R R R R R R C n O N 5 2 1

5 0 R 1 l 1 W F T B

e V N P R E d 3 2 1 M O E R R R O

C R

E H

O O O M E E E A O

H T C o

T T T V K R N N N

R L S / / O O O N

6 4 O O O O I Y C 2 0 F Z Z Z M M M L ' C S E 2 M R T E 0 6 4 2 1 6 4 2 1 6 4 2 1 R / B H C R C R O Y G / I A 2 M M M M M M M M M M M M R R 1 5 7 W W W 3 0 9 0 R

E N /

P A M E V R 0 C O E 4

F N , G S V A T 4 R 2 A 1 N T A 2 T A E S C G E W W R I Y R L S O

T H S D

E N P R R A U

H K C

I 1

C 1 R

2 R O Y

R C G

4 4 6 6 1

1 T M M C O N C N W A T B W I C r e E W p g L D n i m E P D r i a R N E D M W

R U

r R S U G o S E t - P A E o

A - T M T M D S W N A

O / Y R C

1 E X H

10 EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-446-5362 E-Mail- [email protected] TM

Forced Air Zone Controls

SUPPLY AIR SENSOR OPERATIONS AND ONE ZONE FEATURE CONTROL A Supply Air Sensor can be used to limit supply air The One Zone feature allows the homeowner to temperatures and prevent over heating of the control all the zones from a single thermostat by using equipment during the heating cycle or coil freeze- an optional switch connected to the One Zone terminals shown below. A homeowner can switch to up during cooling cycles. Wire the sensor as One Zone control when they leave for vacation or as a shown below and set dip switch #7 to the ON night setback mode, and the Zone 1 thermostat will position. (See Page 2) control all zones. All zone dampers will respond to the The Supply air sensor installs into the supply air Zone 1thermostat. plenum or downstream of the evaporator coil or One Zone can also be used in commercial heat exchanger and monitors the discharge air applications with a programmable thermostat in Zone temperature in heating and cooling modes. The 1 and non-programmable thermostats in all other zones, thus satisfying the requirements of California actual temperature is relayed backed to the Title 24. microprocessor. When the temperature exceeds or falls below the HEAT or COOL limit set points, Substantial energy savings and equipment protection can be obtained with proper use of the One Zone the microprocessor will de-energize all HEAT or feature and the supply air sensor. COOL outputs for a minimum of 3 minutes. It also energizes the FAN, if it is not already running, to ZONE 1 help dissipate the heat or warm up the evaporator T'STAT coil. C EXTERNAL (OPTIONAL) ONE ZONE W SWITCH There is no differential built in to the sensor! Once Y the supply air temperature rises or falls to a safe R value and, the 3 minute time delay has expired, G EM the microprocessor will restore the HEAT or ONE ZONE COOL outputs. The FAN will de-energize or stay 24V INDICATOR running, depending on the mode and the One Zone switch. application. One Zone Mode Commercial Grade SUPPLY via the Zone 1 Thermostat SENSOR Model AIR Thermostat ZONE THERMOSTAT SENSOR SAS #1 2 C W1 Y R G UNOCC / OCC ZONE 1 1 T'STAT C Supply air temperature sensor. W 140 43 Y 40 46 130 150 R 120 160 37 49 G 110 170 34 52 EM HEATING LIMIT COOLING LIMIT ONE ZONE Adjustable Heating & Cooling limit potentiometers

EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-446-5362 E-Mail- [email protected] 11 AUTOMATIC CONTRACTOR TEST

The NCM300 has a built-in automatic sequencer that the contractor can initiate to test each zone damper, the HVAC system outputs and the LED indicators.

Step 1. To start the contractor test, hold the timer Reset switch for 15 seconds and release. The Status LED blinks rapidly to indicate Contractor Test Mode. The panel checks whether Gas/Electric or Heat Pump type system was selected on dip switch #4.

Step 2. The panel energizes the fan (G ) on, and opens the zone 1 damper. After 60 seconds the Zone 2 damper opens. After 60 seconds the Zone 3 damper opens.

Step 3. After 60 seconds HEATING (W1/B)energizes. COMPRESSOR (Y) energizes also if Heat Pump mode was selected.

Step 4. After 120 seconds HEATING (W2)energizes.

Step 5. After 60 seconds HEATING (W1/B),(W2) and/or (Y) de-energize. FAN (G) continues to run.

Step 6. After 120 seconds COOLING (O) energizes and COMPRESSOR (Y) energizes.

Step 7. After 120 seconds COMPRESSOR (Y) de-energizes.

Step 8. After 60 seconds FAN (G) de-energizes.

End of Contractor Test. The NCM300 resumes normal operation after step 8.

NOTE: Pressing the CPU Reset button at any time during the test, terminates the Contractor mode test and returns the NCM300 to normal operation.

NOTES:

12 EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-446-5362 E-Mail- [email protected]