Liebert CW305, 375, 415 Kw System Manual

Liebert® CW™ Thermal Management System

Installer/User Guide 305 kW, 375 kW, 415 kW Capacity, 50/60 Hz The information contained in this document is subject to change without notice and may not be suitable for all applications. While every precaution has been taken to ensure the accuracy and completeness of this document, Vertiv assumes no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions. Refer to other local practices or building codes as applicable for the correct methods, tools, and materials to be used in performing procedures not specifically described in this document.

The products covered by this instruction manual are manufactured and/or sold by Vertiv. This document is the property of Vertiv and contains confidential and proprietary information owned by Vertiv. Any copying, use or disclosure of it without the written permission of Vertiv is strictly prohibited.

Names of companies and products are trademarks or registered trademarks of the respective companies. Any questions regarding usage of trademark names should be directed to the original manufacturer.

Technical Support Site

If you encounter any installation or operational issues with your product, check the pertinent section of this manual to see if the issue can be resolved by following outlined procedures. Visit https://www.Vertiv.com/en-us/support/ for additional assistance.

Vertiv | Liebert® CW™ Installer/User Guide TABLE OF CONTENTS

Important Safety Instructions 1 1 Nomenclature and Components 7 1.1 Liebert CW Model-number Nomenclature 7 1.2 Component Location 10 2 Pre-installation Preparation and Guidelines 11 2.1 Planning Dimensions 11 2.2 Connections and System Setup 12 2.3 Operating Conditions 12 2.3.1 Cooling, Dehumidification and Humidification 12 2.3.2 Humidification Control 12 2.4 Shipping Dimensions and Unit Weights 12 3 Equipment Inspection and Handling 13 3.1 Packaging Material 14 3.2 Handling the Unit while Packaged 14 3.3 Unpacking the Unit 15 3.4 Removing the Unit from the Skid 16 4 Electrical Connections 21 5 Piping Requirements 23 5.1 Drain Fluid Connections 24 5.1.1 Field-installed, Gravity-fed Drain Line Requirements 24 5.1.2 Condensate-pump Drain Line Requirements 25 5.2 Chilled-water Loop Piping Guidelines 25 5.2.1 Leak Checking for Unit and Field-installed Piping 27 6 Checklist for Completed Installation 29 6.1 Moving and Placing Equipment 29 6.2 Electrical Installation Checks 29 6.3 Piping Installation Checks 29 6.4 Other Installation Checks 29 7 Initial Start-up Checks and Commissioning Procedure For Warranty Inspection 31 8 Maintenance 33 8.1 Filters 34 8.1.1 Replacing the Filters 35 8.2 Fan Maintenance 36 8.2.1 Fan Assembly Troubleshooting 36 8.2.2 Fan Impellers 37 8.2.3 Blower-motor Lubrication 37 8.2.4 Removing Fan Assembly 38 8.3 Condensate-drain and Condensate-pump System Maintenance 38 8.3.1 Condensate Drain 38 8.3.2 Condensate Pump 38

Vertiv | Liebert® CW™ Installer/User Guide | iii 9 Preventive Maintenance Checklist 39 Appendices 43 Appendix A: Technical Support and Contacts 43 Appendix B: Submittal Drawings 45

Vertiv | Liebert® CW™ Installer/User Guide | iv IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS

This manual contains important safety instructions that should be followed during the installation and maintenance of the Liebert® CW. Read this manual thoroughly before attempting to install or operate this unit.

Only qualified personnel should move, install or service this equipment.

Adhere to all warnings, cautions, notices and installation, operating and safety instructions on the unit and in this manual. Follow all installation, operation and maintenance instructions and all applicable national and local building, electrical and plumbing codes.

WARNING! Arc flash and electric shock hazard. Open all local and remote electric power-supply disconnect switches, verify with a voltmeter that power is Off and wear appropriate, OSHA-approved personal protective equipment (PPE) per NFPA 70E before working within the electric control enclosure. Failure to comply can cause serious injury or death. Customer must provide earth ground to unit, per NEC, CEC and local codes, as applicable. Before proceeding with installation, read all instructions, verify that all the parts are included and check the nameplate to be sure the voltage matches available utility power. The Liebert® controller does not isolate power from the unit, even in the “Unit Off” mode. Some internal components require and receive power even during the “Unit Off” mode of the controller. The only way to ensure that there is NO voltage inside the unit is to install and open a remote disconnect switch. Refer to unit electrical schematic. Follow all local codes.

WARNING! Risk of electric shock. Can cause equipment damage, injury or death. Open all local and remote electric power supply disconnect switches and verify with a voltmeter that power is off before working within any electric connection enclosures. Service and maintenance work must be performed only by properly trained and qualified personnel and in accordance with applicable regulations and manufacturers’ specifications. Opening or removing the covers to any equipment may expose personnel to lethal voltages within the unit even when it is apparently not operating and the input wiring is disconnected from the electrical source.

WARNING! Risk of electric shock. Can cause serious injury or death. The Liebert® iCOM microprocessor does not isolate power from the unit, even in the "Unit Off" mode. Some internal components require and receive power even during the "unit off" mode of the Liebert® iCOM control. Open all local and remote electric power disconnect switches and verify with a voltmeter that power is Off before working on any component of the system.

Important Safety Instructions 1 WARNING! Risk of electric shock. Can cause serious injury or death. Open all local and remote electric power supply disconnect switches and verify with a voltmeter that power is off before working within the fan-motor electric-connection enclosures. Fan-motor controls can maintain an electric charge for 10 minutes after power is disconnected. Wait 10 minutes after power is verified as off before working within the electric control/connection enclosures. Use only fully- trained and qualified HVAC technicians to perform maintenance on the fans.

WARNING! Risk of improper moving. Can cause equipment damage, injury or death. Use only lifting equipment that is rated for the unit weight by an OSHA-certified rating organization. The center of gravity varies depending on the unit size and selected options. The slings must be equally spaced on either side of the center of gravity indicator. Shipping weights and unit weights are listed in the tables in Shipping Dimensions and Unit Weights on page 12. Use the center of gravity indicators on the unit to determine the position of the slings.

WARNING! Risk of improper wiring, piping, moving, lifting and handling. Can cause equipment damage, serious injury or death. Installation and service of this equipment should be done only by qualified personnel who have been specially-trained in the installation of air-conditioning equipment and who are wearing appropriate, OSHA-approved PPE.

WARNING! Risk of improper piping installation, leak checking, fluid chemistry and fluid maintenance can cause equipment damage and personal injury. Installation and service of this equipment should be done only by qualified personnel who have been specially-trained in the installation of air-conditioning equipment and who are wearing appropriate, OSHA-approved PPE.

WARNING! Risk of contact with high-speed rotating fan blades. Can cause serious injury or death. Open all local and remote electric power-supply disconnect switches, verify with a voltmeter that power is off, and verify that all fan blades have stopped rotating before working in the unit cabinet or on the fan assembly. If control voltage is applied, the fan motor can restart without warning after a power failure. Do not operate the unit with any or all cabinet panels removed.

WARNING! Risk of top-heavy unit falling over. Improper handling can cause equipment damage, injury or death. Read all of the following instructions and verify that all lifting and moving equipment is rated for the weight of the unit before attempting to move, lift, remove packaging from or prepare the unit for installation.

2 Vertiv | Liebert® CW™ Installer/User Guide WARNING! Risk of improper wire sizing/rating and loose electrical connections. Can cause overheated wire and electrical connection terminals resulting in smoke, fire, equipment and building damage, injury or death. Use correctly sized copper wire only and verify that all electrical connections are tight before turning power On. Check all electrical connections periodically and tighten as necessary.

CAUTION: Risk of contact with sharp edges, splinters, and exposed fasteners. Can cause injury. Only properly trained and qualified personnel wearing appropriate, OSHA-approved PPE should attempt to move, lift, remove packaging from or prepare the unit for installation.

CAUTION: Risk of exposure to harmful noise levels. Can cause hearing injury or loss. Depending on the installation and operating conditions, a sound pressure level greater than 70 dB(A) may arise. Take appropriate technical safety measures. Operating personnel must wear appropriate, OSHA-approved PPE and observe all appropriate hearing-protection safety requirements.

CAUTION: Risk of contact with hot surfaces. Can cause injury. The fan motor, and some electrical components are extremely hot during unit operation. Allow sufficient time for them to cool to a touch-safe temperature before working within the unit cabinet. Use extreme caution and wear appropriate, OSHA-approved PPE when working on or near hot components.

CAUTION: Risk of smoke generation. Can cause fire suppression and alarm system activation, resulting in injury during building evacuation and mobilization of emergency fire and rescue services. Start-up operation of optional electric reheat elements can create smoke or fumes that can activate the facility alarm and fire suppression system. Prepare and take appropriate steps to manage this possibility. Before beginning initial start-up checks, make certain that unit was installed according to the instructions in this manual. All exterior panels must be in place.

NOTICE

Risk of improper power-supply connection. Can cause equipment damage and loss of warranty coverage.

Prior to connecting any equipment to a main or alternate power source (for example: back-up generator systems) for start-up, commissioning, testing, or normal operation, ensure that these sources are correctly adjusted to the nameplate voltage and frequency of all equipment to be connected. In general, power-source voltages should be stabilized and regulated to within ±10% of the load nameplate nominal voltage. Also, ensure that no three-phase sources are single-phased at any time.

Important Safety Instructions 3 NOTICE

Risk of piping-system corrosion and freezing fluids. Can cause leaks resulting in equipment and very expensive building damage. Cooling coils and piping systems are at high risk of freezing and premature corrosion. Fluids in these systems must contain the proper antifreeze and inhibitors to prevent freezing and premature coil and piping corrosion. The water or water/glycol solution must be analyzed by a competent local water treatment specialist before start up to establish the inhibitor and antifreeze solution requirement and at regularly scheduled intervals throughout the life of the system to determine the pattern of inhibitor depletion.

The complexity of water/glycol solution condition problems and the variations of required treatment programs make it extremely important to obtain the advice of a competent and experienced water treatment specialist and follow a regularly scheduled coolant fluid system maintenance program.

Water chemistry varies greatly by location, as do the required additives, called inhibitors, that reduce the corrosive effect of the fluids on the piping systems and components. The chemistry of the water used must be considered, because water from some sources may contain corrosive elements that reduce the effectiveness of the inhibited formulation. Sediment deposits prevent the formation of a protective oxide layer on the inside of the coolant system components and piping. The water/coolant fluid must be treated and circulating through the system continuously to prevent the buildup of sediment deposits and or growth of sulfate reducing bacteria.

Proper inhibitor maintenance must be performed in order to prevent corrosion of the system. Consult glycol manufacturer for testing and maintenance of inhibitors.

Commercial ethylene glycol, when pure, is generally less corrosive to the common metals of construction than water itself. It will, however, assume the corrosivity of the water from which it is prepared and may become increasingly corrosive with use if not properly inhibited.

We recommend installing a monitored fluid-detection system that is wired to activate the automatic-closure of field-installed coolant-fluid supply and return shut-off valves to reduce the amount of coolant-fluid leakage and consequential equipment and building damage. The shut-off valves must be sized to close-off against the maximum coolant-fluid system pressure in case of a catastrophic fluid leak. NOTICE

Risk of frozen pipes and corrosion from improper coolant mixture. Can cause water leaks resulting in equipment and building damage.

When the cooling unit or piping may be exposed to freezing temperatures, charge the system with the proper percentage of glycol and water for the coldest design ambient temperature. Automotive antifreeze is unacceptable and must NOT be used in any glycol fluid system. Use only HVAC glycol solution that meets the requirements of recommended industry practices. Do not use galvanized pipe.

4 Vertiv | Liebert® CW™ Installer/User Guide NOTICE

Risk of no-flow condition. Can cause equipment damage. Do not leave the water/coolant fluid- supply circuit in a no-flow condition. Idle fluid allows the collection of sediment that prevents the formation of a protective oxide layer on the inside of tubes. Keep unit switched On and water/coolant fluid-supply circuit system operating continuously. NOTICE

Risk of clogged or leaking drain lines and leaking water-supply lines. Can cause equipment and building damage.

This unit requires a water drain connection. Drain lines must be inspected at start-up and periodically, and maintenance must be performed to ensure that drain water runs freely through the drain system and that lines are clear and free of obstructions and in good condition with no visible sign of damage or leaks.

Improper installation, application and service practices can result in water leakage from the unit. Water leakage can result in catastrophic and expensive building and equipment damage and loss of critical data center equipment.

Do not locate unit directly above any equipment that could sustain water damage.

We recommend installing a monitored fluid-detection system to immediately discover and report coolant-fluid system and condensate drain-line leaks. NOTICE

Risk of doorway/hallway interference. Can cause unit and/or structure damage. The unit may be too large to fit through a doorway or hallway while on the skid. Measure the unit and passageway dimensions, and refer to the installation plans prior to moving the unit to verify clearances. NOTICE

Risk of damage from forklift. Can cause unit damage. Keep tines of the forklift level and at a height suitable to fit below the skid and/or unit to prevent exterior and/or underside damage. NOTICE

Risk of improper storage. Can cause unit damage.

Keep the unit upright, indoors and protected from dampness, freezing temperatures and contact damage.

Important Safety Instructions 5 This page intentionally left blank

6 Vertiv | Liebert® CW™ Installer/User Guide 1 NOMENCLATURE AND COMPONENTS

This section describes the number for Liebert® CW units and components.

1.1 Liebert CW Model-number Nomenclature

The following tables describe each digit of the configuration number. The 14-digit model number consists of the first 10 digits and last 4 digits of the configuration number.

Table 1.1 CW Model Number Example Digits 1 to 10

1 2 3 4 5 6 7 8 9 10

C W 4 1 5 D 1 3 A 1

Table 1.2 CW Configuration-number Detail Digits 11 to 25 Example

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

1 2 0 8 1 0 L 0 0 0 P 0 0 0 0

Table 1.3 CW onfiguration-number Detail Digits 26 to 36

26 27 28 29 30 31 32 33 34 35 36

0 0 0 0 0 0 0 0 0 0 0

Table 1.4 CW Model Number Digits 37 to 40 Example

37 38 39 40

# # # A

Table 1.5 CW Model-number Digit Definitions

Digit Description

Digits 1 and 2 = Unit Family CW = Liebert® CW floor-mounted, chilled-water unit

Digit 3, 4, 5 = Nominal Cooling Capacity, kW 305 = 305 kW 375 = 375 kW 415 = 415 kW

Digit 6 = Air Distribution H = Horizontal discharge D =Bottom discharge

Digit 7 = Electric Panel Options 1 =Data hall or Bottom discharge, left electric panel 2 = Data hall or Bottom discharge, right electric panel 3 = Gallery, left electric panel 4 = Gallery, right electric panel

1 Nomenclature and Components 7 Table 1.5 CW Model-number Digit Definitions (continued)

Digit Description

Digit 8 = Fan Type 3 = Direct-drive + VFD T = Direct-drive + VFD + THD

Digit 9 = Voltage A = 460 V - 3 ph - 60 Hz B = 575 V - 3 ph - 60 Hz 2= 380 V - 3 ph - 60 Hz M= 380-415 V - 3 ph - 50 Hz

Digit 10 = Valve Type 1 = 2-way, fail-in-place, 400 PSI 4 = 2-way, fail open, 400 PSI 5 = 2-way, fail closed, 400 PSI

Digit 11 = Agency 1 = CSA

Digit 12 = Display/Microprocessor Control 2 = iCOM (high-definition)

Digit 13 = Humidification 0 = None

Digit 14 = Air Filter 8 = 4-in. MERV 8 9 = 4-in. MERV 11

Digit 15 = Coil 2 = Hydrophilic coated evap coil

Digit 16 = Seismic 0 = None

Digit 17 = High-voltage Options L = Locking disconnect S = Dual locking disconnect with reversing starter + Capacitive buffer

Digit 18 = Option packages 0 = None L = Low-voltage terminal package R = Remote-humidifier contact D - Low-voltage terminal package + Remote-humidifier contact

8 Vertiv | Liebert® CW™ Installer/User Guide Table 1.5 CW Model-number Digit Definitions (continued)

Digit Description

Digit 19 = Monitoring B = Base Comms & Connectivity X = Base Comms + Etherernet +RS485 (SFA) R = Base Comms +SiteScan RS485 Expansion ( SFA)

Digit 20 = Sensors 0 = None S = Smoke H = High-temperature F = Smoke and High-temperature

Digit 21 = Packaging P = Domestic C = Export

Digit 22, 23, 24, 25 = Placeholder 0 = Placeholder

Digit 26 = Power Meter 0 = None P = Power Meter

Digits 27 and 28 = Placeholder 0 = Placeholder

Digit 29 = Condensate Pump 0 = None C = Condensate pump

Digit 30 to 36 0 = Placeholder

Digit 37 to 39 = Factory Configuration Number

Digit 40 = Configuration Code A = No SFA S = SFA

1 Nomenclature and Components 9 1.2 Component Location

The unit component locations are described in the submittal documents included in the Submittal Drawings on page 45.

The following table lists the relevant documents by number and title.

Table 1.6 Component-location Drawings

Document Number Title

DPN004861 Component Location, Horizontal Discharge

DPN004899 Component Location, Bottom Discharge

10 Vertiv | Liebert® CW™ Installer/User Guide 2 PRE-INSTALLATION PREPARATION AND GUIDELINES

NOTE: Before installing unit, determine whether any building alterations are required to run piping, wiring and duct work. Follow all unit dimensional drawings and refer to the submittal engineering dimensional drawings of individual units for proper clearances.

Refer to Table 1.5 on page 7, and submittal drawings to determine the type of system being installed and anticipate building alterations, piping and duct work needed.

The unit dimensions, pipe-connection locations, and piping schematics are described in the submittal documents included in the Submittal Drawings on page 45.

• Verify that the floor is level, solid and sufficient to support the unit. See Table 2.2 on the next page,for unit weights. • Confirm that the room is properly insulated and has a sealed vapor barrier. • For proper humidity control, keep outside or fresh air to an absolute minimum (less than 5% of total air circulated in the room). • Do not install a Liebert® CW in an alcove or at the end of a long, narrow room. • Install the units as close as possible to the largest heat load. • Allow at least the minimum recommended clearances for maintenance and service. See the appropriate submittal drawings for dimensions. • We recommend installing an under-floor water detection system. Contact your Vertiv representative for information.

2.1 Planning Dimensions

The unit, floor stand, and plenum dimensions are described in the submittal documents included in the Submittal Drawings on page 45.

The following table lists the relevant documents by number and title.

Table 2.1 Dimension Planning Drawings

Document Number Title

Downflow Units

DPN004862 Cabinet and Plenum Dimensional Data, Downflow, Horizontal Discharge

DPN004900 Cabinet and Plenum Dimensional Data, Downflow, Bottom Discharge

DPN004870 Installation and Service Clearance Data, Downflow, Horizontal and Bottom Discharge

DPN004869 Floor planning dimensional data for adjacent units

Floor Stands

DPN004866 Floorstand Dimensional Data,

Airflow Schematic

DPN004865 Airflow Schematic, Downflow, Horizontal Discharge

DPN004904 Airflow Schematic, Downflow, Bottom Discharge

2 Pre-installation Preparation and Guidelines 11 2.2 Connections and System Setup • The unit requires a drain, which must comply with all applicable codes. This drain line may contain boiling water. See Field-installed, Gravity-fed Drain Line Requirements on page 24, for details. • The unit requires supply and return water connections, which must comply with all applicable codes. See Piping Requirements on page 23. • If seismic requirements apply, consult your Vertiv representative for information about a seismic-rated floor stand.

2.3 Operating Conditions

The Liebert® CW must be operated in a conditioned space within the operating envelope that ASHRAE recommends for data centers. Operating the CW outside of this envelope can decrease equipment reliability. Refer to ASHRAE’s publication, “Thermal Guidelines for Data Processing Environments.”

The recommended maximum for return-air temperature is 105°F (40°C) and maximum dew point is 59°F (15°C). The recommended minimum return-air temperature setpoint for the CW is 85°F (29.4°C).

2.3.1 Cooling, Dehumidification and Humidification

Return air to the unit must be no cooler than the ASHRAE recommendation of 68°F (20°C) DB and 40% RH or minimum WB of 54°F (12.2°C) for proper unit operation. Operating below this can decrease equipment reliability.

2.3.2 Humidification Control

The humidifier option is not available on the CW305, CW375, CW415. A remote humidifier contact is available for a stand-alone humidifier.

2.4 Shipping Dimensions and Unit Weights Table 2.2 Downflow unit domestic and export shipping dimensions and weights

Domestic Packaging Export Packaging Dry Weight, lb Model # Ship Weight, lb Shipping Dimensions, in. Ship Weight, lb Shipping Dimensions, in. (kg) (kg) (mm) (kg) (mm)

CW305 70 x 154 x 96.8 70.5 x 154.5 x 99 CW375 3890 (1764) 4230 (1919) 3300 (1497) (1778 x 3911 x 2458) (1790 x 3924 x 2514) CW415

Fan 90 x 128 x 54 90.5 x 128.5 x 99 3000 (1361) 3370 (1528) 2300 (1043) section (2286 x 3251 x 1372) (2299 x 3264 x 2515)

12 Vertiv | Liebert® CW™ Installer/User Guide 3 EQUIPMENT INSPECTION AND HANDLING

SAFETY INFORMATION

WARNING! Risk of improper moving. Can cause equipment damage, injury or death. Use only lifting equipment that is rated for the unit weight by an OSHA-certified rating organization. The center of gravity varies depending on the unit size and selected options. The slings must be equally spaced on either side of the center of gravity indicator. Shipping weights and unit weights are listed in the tables in Table 2.2 on page 12. Use the center of gravity indicators on the unit to determine the position of the slings.

NOTICE

Risk of passageway interference. Can cause unit and/or structure damage. The unit may be too large to fit through a passageway while on or off the skid. Measure the unit and passageway dimensions, and refer to the installation plans prior to moving the unit to verify clearances. NOTICE

Risk of damage from forklift. Can cause unit damage. Keep tines of the forklift level and at a height suitable to fit below the skid and/or unit to prevent exterior and/or underside damage. NOTICE

Risk of improper storage. Keep the unit upright, indoors and protected from dampness, freezing temperatures and contact damage.

Upon arrival of the unit and before unpacking:

• Verify that the labeled equipment matches the bill of lading. • Carefully inspect all items for visible or concealed damage. • Report damage immediately to the carrier and file a damage claim with a copy sent to Vertiv or to your sales representative.

3 Equipment Inspection and Handling 13 Equipment Recommended for Handling the Unit:

• Forklift • Slings • Spreader bars • Beam trolleys • Chain hoists • Gantries

3.1 Packaging Material

All material used to package this unit is recyclable. Please save for future use or dispose of the material appropriately.

3.2 Handling the Unit while Packaged

If possible, transport the unit with a forklift or pallet jack. If that is not possible, use a crane with slings and spreader bars that are rated for the weight of the unit.

When using a forklift or pallet jack:

• Ensure that the fork length is suitable for the unit length and, if adjustable, spread to the widest allowable distance that will fit under the skid. • When moving the packaged unit, lift the unit from the end with the indicated labeling, and do not lift the unit any higher than 4 in. (102 mm). Ensure that the opposite end of the skid still touches the floor. The unit must be pulled by the forklift. All personnel except those moving the unit must be kept 12 ft (3.7 m) or more from the unit while it is being moved. • If the unit must be lifted higher than 4 in. (102 mm), all personnel not directly involved in moving the unit must be 20 ft (5 m) or farther from the unit. • Always refer to the location of the center-of-gravity indicators when lifting the unit, see Figure 3.1 below.

Figure 3.1 Center-of-gravity indicator

14 Vertiv | Liebert® CW™ Installer/User Guide 3.3 Unpacking the Unit 1. Refer to 3.3 above: • On units with domestic packaging, remove the exterior stretch wrap packaging from around the unit and any protective corner and side packaging planks. • On units with export packaging, remove the metal spring clips that secure the top and side panels of the crate. Then remove the exterior stretch wrap packaging from around the unit and any protective corner and side packaging planks.

Figure 3.2 Unpacking the Unit

Item Description

1 Domestic packaging

2 Export packaging

3 Equipment Inspection and Handling 15 3.4 Removing the Unit from the Skid

NOTE: If you do not follow these steps, damage could occur to the panels and/or base of the unit.

1. Referring to Figure 3.3 below, use a 9/16-in. socket driver to remove the lag screws (24 total) from the 4 corner brackets to detach the unit from the skid.

Figure 3.3 Remove corner brackets

16 Vertiv | Liebert® CW™ Installer/User Guide 2. Using the provided rigging-fastener kit and the instructions included in the kit, install the rigging hardware for lifting the unit from the skid. Figure 3.4 below, shows an example of one of the eye nuts installed.

Figure 3.4 Rigging-fastener eye nut installed

3 Equipment Inspection and Handling 17 3. Attach the recommended rigging equipment to the eye-nuts installed in Step 2. 4. Using the rigging equipment, lift the unit from the skid, and remove the skid from under the unit, see Figure 3.5 below.

Figure 3.5 Lifting unit and removing skid

18 Vertiv | Liebert® CW™ Installer/User Guide 5. Use the rigging equipment to move the unit to the final installation location, see Figure 3.6 below.

Figure 3.6 Moving the unit with rigging

3 Equipment Inspection and Handling 19 This page intentionally left blank

20 Vertiv | Liebert® CW™ Installer/User Guide 4 ELECTRICAL CONNECTIONS

Three-phase electrical service is required for all models. Electrical service must conform to national and local electrical codes. Refer to equipment nameplate regarding wire size and circuit protection requirements. Refer to electrical schematic when making connections. Refer the appropriate submittal drawing, listed in Table 4.1 on the next page, for electrical service entrances into unit.

A manual electrical disconnect switch should be installed in accordance with local codes and distribution system. Consult local codes for external disconnect requirements.

WARNING! Risk of improper wire sizing/rating and loose electrical connections. Can cause overheated wire and electrical connection terminals resulting in smoke, fire, equipment and building damage, injury or death. Use correctly sized copper wire only and verify that all electrical connections are tight before turning power On. Check all electrical connections periodically and tighten as necessary.

NOTICE

Risk of improper power-supply connection. Can cause equipment damage and loss of warranty coverage.

See transformer label for primary tap connections. Installer will need to change transformer primary taps if applied unit voltage is other than pre-wired tap voltage.

4 Electrical Connections 21 The electrical and unit-to-unit connections are described in the submittal documents included in the Submittal Drawings on page 45.

The following table lists the relevant documents by number and title.

Table 4.1 Electrical Field-connection Drawings

Document Number Title

DPN004864 Electrical Field Connections, Downflow, CW305, 375, 415

Connection Locations, Data Hall with horizontal-discharge, Front-left facing DPN004863 electrical/piping compartment

Connection Locations, Bottom-discharge, Front-right facing electrical/piping DPN004901 compartment

Connection Locations, Data Hall with horizontal-discharge, Front-right facing DPN004923 electrical/piping compartment

DPN004903 Connection Locations, Bottom-discharge, Front-left facing electrical/piping compartment

Connection Locations, Gallery with horizontal-discharge, Front-right facing electrical/piping DPN004924 compartment

Connection Locations, Gallery with horizontal-discharge, Front-right facing electrical/piping DPN004925 compartment

Unit-to-Unit Networking

DPN004351 Liebert® iCOM Unit-to-unit Network Connections

22 Vertiv | Liebert® CW™ Installer/User Guide 5 PIPING REQUIREMENTS

All fluid connections to the unit, with the exception of the condensate drain, are sweat copper. Factory- installed piping brackets must not be removed. Field-installed piping must be installed in accordance with local codes and must be properly assembled, supported, isolated and insulated. Avoid piping runs through noise-sensitive areas, such as office walls and conference rooms.

Refer to specific text and detailed diagrams in this manual for other unit-specific piping requirements.

All piping below the elevated floor must be located so that it offers the least resistance to air flow. Careful planning of the piping layout under the raised floor is required to prevent the air flow from being blocked. When installing piping on the subfloor, we recommend that the pipes be mounted in a horizontal plane rather than stacked one above the other. Whenever possible, the pipes should be run parallel to the air flow.

The pipe connection locations, piping general arrangement and schematics are described in the submittal documents included in the Submittal Drawings on page 45.

The following tables list the relevant documents by number and title.

Table 5.1 Piping General-arrangment Drawings

Document Number Title

DPN004952 Piping Schematic, Downflow, CW305, 375, 415

Table 5.2 Piping Connection Drawings

Document Number Title

Connection Locations, Data Hall with horizontal-discharge, Front-left facing DPN004863 electrical/piping compartment

Connection Locations, Bottom-discharge, Front-right facing electrical/piping DPN004901 compartment

Connection Locations, Data Hall with horizontal-discharge, Front-right facing DPN004923 electrical/piping compartment

DPN004903 Connection Locations, Bottom-discharge, Front-left facing electrical/piping compartment

Connection Locations, Gallery with horizontal-discharge, Front-right facing electrical/piping DPN004924 compartment

Connection Locations, Gallery with horizontal-discharge, Front-right facing electrical/piping DPN004925 compartment

5 Piping Requirements 23 5.1 Drain Fluid Connections NOTICE

Risk of water leakage. Can cause severe property damage and loss of critical data center equipment.

The Liebert® CW requires a water drain connection. Improper installation, application and service practices can result in water leakage from the unit.

Do not locate the unit directly above any equipment that could sustain water damage.

We recommend installing monitored leak detection equipment for the water supply lines and the internal unit water lines.

The following pipe connections are required:

• A drain line from the unit. • Supply and return water lines.

5.1.1 Field-installed, Gravity-fed Drain Line Requirements NOTICE

Risk of water backing up in the drain line. Leaking and overflowing water can cause equipment and building damage.

Install an external, 5-1/2 in. trap in the drain line (if desired). The factory unit does not contain a trap.

Sagging condensate drain lines may inadvertently create an external trap.

Observe the following requirements when installing and routing the drain line:

• The drain line must be sized for 2 gpm (7.6 l/m) flow. • The drain line must be located so it will not be exposed to freezing temperatures. • The drain should be the full size of the drain connection. • The drain line must slope continuously away from the unit. Pitch drain line toward drain a minimum of 1/8 in. (3 mm) per 1 ft (305 mm) of length. • The drain line must be rigid enough that it does not sag between supports, which unintentionally creates traps. • The drain line must comply with all applicable codes. • We recommend installing monitored, under-floor leak-detection equipment.

24 Vertiv | Liebert® CW™ Installer/User Guide 5.1.2 Condensate-pump Drain Line Requirements NOTICE

Risk of water backing up in the drain line. Leaking and overflowing water can cause equipment and building damage.

Sagging condensate drain lines may inadvertently create an external trap.

Observe the following requirements when installing and routing the drain line:

• The drain line must be located so it will not be exposed to freezing temperatures. • Size the piping based on the available condensate head. • The drain line must be rigid enough that it does not sag between supports, which unintentionally creates traps. • We recommend installing monitored, under-floor leak-detection equipment.

5.2 Chilled-water Loop Piping Guidelines

NOTICE

Risk of frozen pipes and corrosion from improper coolant mixture. Can cause water leaks resulting in equipment and building damage.

5 Piping Requirements 25 Water chemistry varies greatly by location, as do the required additives, called inhibitors, that reduce the corrosive effect of the fluids on the piping systems and components. The chemistry of the water used must be considered, because water from some sources may contain corrosive elements that reduce the effectiveness of the inhibited formulation. Sediment deposits prevent the formation of a protective oxide layer on the inside of the coolant system components and piping. The water/coolant fluid must be treated and circulating through the system continuously to prevent the buildup of sediment deposits and or growth of sulfate reducing bacteria.

Proper inhibitor maintenance must be performed in order to prevent corrosion of the system. Consult glycol manufacturer for testing and maintenance of inhibitors.

Risk of no-flow condition. Can cause equipment damage.

Do not leave the water/coolant fluid-supply circuit in a no-flow condition. Idle fluid allows the collection of sediment that prevents the formation of a protective oxide layer on the inside of tubes. Keep unit switched On and water/coolant fluid-supply circuit system operating continuously.

Refer to the appropriate piping general-arrangement schematics for your system for the recommended, field-installed hardware such as shut-off valves. See Table 5.1 on page 23.

• Use copper piping with a brazing alloy with a minimum temperature of 1350°F (732°C), such as Sil-Fos. Avoid soft solders, such as 50/50 or 95/5. • Follow local piping codes and safety codes. • Qualified personnel must install and inspect system piping. • The water/glycol-cooled system will operate in conjunction with a cooling tower, city water or drycooler. • Contact a local water consultant regarding water quality, corrosion protection and freeze- protection requirements. • Install manual shut-off valves at the supply and return line to each unit to permit routine service and emergency isolation of the unit. • Install a monitored, fluid-detection system that is wired to activate the automatic closure of field-installed coolant-fluid supply and return shut-off valves to reduce the amount of coolant fluid leakage and consequential equipment and building damage. The shut-off valves must be sized to close-off against the maximum coolant-fluid system pressure in case of a catastrophic fluid leak.

26 Vertiv | Liebert® CW™ Installer/User Guide 5.2.1 Leak Checking for Unit and Field-installed Piping

The fluid systems in the Liebert® CW are factory-checked for leaks and may be shipped with holding charge. At installation, check all fluid circuits for leaks.

NOTE: We recommend isolating the unit with field-installed shutoff valves during leak checking of field-installed piping. When the units are included in a leak test, use of fluid for pressure testing is recommended. When pressurized gas is used for leak testing the unit, the maximum recommended pressure is 30 psig (207 kPa) and tightness of the unit should be verified by pressure decay over time, (<2 psig/hour [13.8 kPa/hour]) or sensing a tracer gas with suitable instrumentation. Dry seals in fluid valves and pumps may not hold a high gas pressure.

5 Piping Requirements 27 This page intentionally left blank

28 Vertiv | Liebert® CW™ Installer/User Guide 6 CHECKLIST FOR COMPLETED INSTALLATION

6.1 Moving and Placing Equipment 1. Unpack and check received material. 2. Proper clearance for service access has been maintained around the equipment. 3. Equipment is level and mounting fasteners are tight.

6.2 Electrical Installation Checks 1. Supply voltage and phase matches equipment nameplate. 2. Power wiring connections completed to the disconnect switch and unit. 3. Power line circuit breakers or fuses have proper ratings for equipment installed. 4. All internal and external high- and low-voltage wiring connections are tight. 5. Confirm that unit is properly grounded to an earth ground. 6. Control transformer setting matches incoming power. 7. Electrical service conforms to national and local codes. 8. Check blowers for proper rotation.

6.3 Piping Installation Checks 1. Piping completed to coolant loop. 2. Piping has been leak-checked. 3. Piping has been flushed to clear debris, pipe dope, and contaminants. 4. Piping is properly sized. 5. Check piping inside and outside of equipment for proper support and adequate spacing to prevent rub-through. 6. Ensure that factory clamps have been reinstalled. 7. Drain line connected, not obstructed, and pitched per local code. 8. Condensate drain connected.

6.4 Other Installation Checks 1. Ducting complete. 2. Filters installed. 3. Check fasteners that secure motors—some may have become loose during shipment. 4. All fans are free of debris.

6 Checklist for Completed Installation 29 This page intentionally left blank

30 Vertiv | Liebert® CW™ Installer/User Guide 7 INITIAL START-UP CHECKS AND COMMISSIONING PROCEDURE FOR WARRANTY INSPECTION

• Confirm that all items on Checklist for Completed Installation on page 29 have been done. • Locate “Liebert® CW Warranty Inspection Check Sheet” in the unit’s electric panel. • Complete “Liebert® CW Warranty Inspection Check Sheet” during start-up. • Forward the completed “Liebert® CW Warranty Inspection Check Sheet” to your local sales office. This information must be completed and forwarded to validate warranty. • Contact your local sales representative or technical support if you have any questions or problems during unit start-up and commissioning. Visit https://www.Vertiv.com/en-us/support/ or call 1-800-222-5877 for contacts.

7 Initial Start-up Checks and Commissioning Procedure For Warranty Inspection 31 This page intentionally left blank

32 Vertiv | Liebert® CW™ Installer/User Guide 8 MAINTENANCE

8 Maintenance 33 The Liebert® CW is a single component in the facility heat-removal system. The system includes air distribution (raised floors, duct systems), outdoor heat rejection (pumps) and indoor cooling and humidity loads (equipment load, location, outside air infiltration). Proper application and maintenance of the entire system is critical to the life and reliability of the thermal-management units.

• Good maintenance practices are essential to minimizing operation costs and maximizing product life. • Read and follow monthly and semi-annual maintenance schedules included in this manual. These MINIMUM maintenance intervals may need to be more frequent based on site-specific conditions. • See the Liebert®iCOM™ user manual, SL-31075, available at www.Vertiv.com, for instructions on using the controller to predict some service maintenance intervals. • We recommend the use of trained and authorized service personnel, extended service contracts and factory-specified replacement parts. Contact your Vertiv sales representative.

8.1 Filters NOTICE

Risk of improper filter installation. Can cause filter collapse and airflow reduction.

To maximize the performance and reliability of the equipment, use only Vertiv filters. Contact your Vertiv representative to order replacement filters.

Verify that filters are installed and positioned so the air-flow direction marked on the filter is the same direction as unit air flow.

Table 8.1 Filter Quantity and Type

Filter Size, Unit size Filter Type Quantity Width x Length x Depth

CW305, CW375, CW415 MERV 8 28 x 22 x 4 15

34 Vertiv | Liebert® CW™ Installer/User Guide 8.1.1 Replacing the Filters

1. The filters are accessed through panels on the front side of the plenum at the front of the unit, see Figure 8.1 below.

Figure 8.1 Filter Access

Item Description

1 Front access on the front side of the fan plenum.

8 Maintenance 35 Figure 8.2 Removing and installing the air filters

Item Description

1 Remove and install filters up and down in the columns. There are 3 filters in each column.

8.2 Fan Maintenance

8.2.1 Fan Assembly Troubleshooting

Any safety hazards stemming from the device must be re-evaluated once it is installed in the end device.

Do not make any modifications, additions or conversions to the fan assembly without the approval of Vertiv.

WARNING! Risk of electric shock. Can cause serious injury or death. Open all local and remote electric power supply disconnect switches and verify with a voltmeter that power is off before working within the fan-motor electric-connection enclosures. Fan-motor controls can maintain an electric charge for 10 minutes after power is disconnected. Wait 10 minutes after power is verified as off before working within the electric control/connection enclosures. Use only fully- trained and qualified HVAC technicians to perform maintenance on the fans.

36 Vertiv | Liebert® CW™ Installer/User Guide WARNING! Risk of contact with high-speed rotating fan blades. Can cause serious injury or death. Open all local and remote electric power-supply disconnect switches, verify with a voltmeter that power is off, and verify that all fan blades have stopped rotating before working in the unit cabinet or on the fan assembly. If control voltage is applied, the fan motor can restart without warning after a power failure. Do not operate the unit with any or all cabinet panels removed.

NOTICE

Risk of improper power-supply connection. Can cause equipment damage and loss of warranty coverage.

NOTE: Do not assume that the fan blades will not start to spin. If the motor is in a fault condition, it will safely shut down. Once the fault condition is cleared, there are certain conditions in which the motor will automatically resume operation.

8.2.2 Fan Impellers

Fan impellers should be periodically inspected and any debris removed. Check to ensure that the impellers can rotate freely.

Consult the factory for fan-assembly maintenance and removal instructions. Do not attempt to service or remove the fans without first contacting Vertiv support at 1-800-222-5877.

8.2.3 Blower-motor Lubrication

The motor is initially lubricated at the factory.

• Contact the motor manufacturer for the lubrication interval for motor bearings. • Contact the motor manufacturer to determine the type of grease to use for lubrication.

8 Maintenance 37 8.2.4 Removing Fan Assembly

Do not attempt to remove the fan assemblies without first contacting Vertiv Technical Support at 1-800- 222-5877.

8.3 Condensate-drain and Condensate-pump System Maintenance

8.3.1 Condensate Drain

Check for and clear obstructions in tubing during routine maintenance.

8.3.2 Condensate Pump

WARNING! Risk of electric shock. Can cause injury or death. Open all local and remote electric power-supply disconnect switches and verify that power is Off with a voltmeter before working within the condensate pump electrical connection enclosure. The Liebert® iCOM™ does not isolate power from the unit, even in the “Unit Off” mode. Some internal components require and receive power even during the “Unit Off” mode of the Liebert® iCOM.

To maintain the condensate pump:

1. Disconnect power to the unit using the disconnect switch. 2. Check for and clear obstructions in gravity lines leading to the condensate pump. 3. Remove the sump, clean with a stiff nylon brush and flush with water. 4. Inspect and clear clogs in the discharge check valve and float mechanism. 5. Reassemble and check for leaks.

38 Vertiv | Liebert® CW™ Installer/User Guide 9 PREVENTIVE MAINTENANCE CHECKLIST

Source: DPN002952, Rev. 4

Inspection Date Job Name Indoor Unit Model # Indoor Unit Serial Number # Room Temperature/Humidity ° % Ambient Temperature °

Not all units will have all components. To determine your unit’s configuration, compare the Indoor Unit Model # above and the information in the Components and Nomenclature section.

Good maintenance practices are essential to minimizing operation cost and maximizing product life. Read and follow all applicable maintenance checks listed below. At a minimum, these checks should be performed semi-annually. However, maintenance intervals may need to be more frequent based on site- specific conditions. Review the unit user manual for further information on unit operation. We recommend the use of trained and authorized service personnel, extended service contracts, and factory-certified replacement parts. Contact your local sales representative for more details. Check all that apply:

Evaporator/Filters

1. Check/Replace filters 2. Grille area unrestricted 3. Wipe section clean 4. Coil clean 5. Clean condensate pan 6. Clean trap in condensate drain 7. Check/Test filter-clog switch operation (if equipped) Blower Section

1. Blower wheels free of debris 2. Check/Lube bearings 3. Check/Lube motor (if supplied with grease ports). Check motor manufacturer’s web site for procedure, amount and type of grease required. 4. Check motor mount 5. Check/Test air sail switch 6. Motor amp draw • Compare to nameplate amps

#1 L1 L2 L3 #2 L1 L2 L3 #3 L1 L2 L3

9 Preventive Maintenance Checklist 39 Condensate Pump (if equipped)

1. Check for debris in sump 2. Check operation of float(s) (free movement) 3. Check/Clean discharge check valve Electrical Panel

1. Check fuses 2. Check contactors for pitting (Replace if pitted) 3. Check/Re-torque wire connections

40 Vertiv | Liebert® CW™ Installer/User Guide MAINTENANCE NOTES

Name Signature Company

Make photocopies for your records. Compare readings/information to previous maintenance worksheet.

To locate your local Vertiv representative for Vertiv-engineered parts, check https://www.Vertiv.com/en- us/support/ or Call 1-800-222-5877.

9 Preventive Maintenance Checklist 41 This page intentionally left blank

42 Vertiv | Liebert® CW™ Installer/User Guide APPENDICES

Appendix A: Technical Support and Contacts

A.1 Technical Support/Service in the United States

Vertiv™ Corporation

24x7 dispatch of technicians for all products.

1-800-543-2378

Liebert® Thermal Management Products

1-800-543-2778

Liebert® Channel Products

1-800-222-5877

Liebert® AC and DC Power Products

1-800-543-2378

A.2 Locations

United States

Vertiv Headquarters

1050 Dearborn Drive

Columbus, OH, 43085, USA

Europe

Via Leonardo Da Vinci 8 Zona Industriale Tognana

35028 Piove Di Sacco (PD) Italy

Asia

7/F, Dah Sing Financial Centre

3108 Gloucester Road

Wanchai, Hong Kong

43 This page intentionally left blank

44 Vertiv | Liebert® CW™ Installer/User Guide Appendix B: Submittal Drawings

The submittal drawings are in the order of document part number (DPN). Table B.1 below, groups the drawings by topic/application.

Table B.1 Submittal-drawings Contents

Document Number Title

Component Location

DPN004861 Component Location, Horizontal Discharge

DPN004899 Component Location, Bottom Discharge

Planning Dimensions - Downflow Units

DPN004862 Cabinet and Plenum Dimensional Data, Downflow, Horizontal Discharge

DPN004900 Cabinet and Plenum Dimensional Data, Downflow, Bottom Discharge

DPN004870 Installation and Service Clearance Data, Downflow, Horizontal and Bottom Discharge

DPN004869 Floor planning dimensional data for adjacent units

Planning Dimensions - Floor Stands

DPN004866 Floorstand Dimensional Data,

Airflow Schematic

DPN004865 Airflow Schematic, Downflow, Horizontal Discharge

DPN004904 Airflow Schematic, Downflow, Bottom Discharge

Piping Schematics

DPN004952 Piping Schematic, Downflow, CW305, 375, 415

Piping Connections

Connection Locations, Data Hall with horizontal-discharge, Front-left facing DPN004863 electrical/piping compartment

Connection Locations, Bottom-discharge, Front-right facing electrical/piping DPN004901 compartment

Connection Locations, Data Hall with horizontal-discharge, Front-right facing DPN004923 electrical/piping compartment

DPN004903 Connection Locations, Bottom-discharge, Front-left facing electrical/piping compartment

Connection Locations, Gallery with horizontal-discharge, Front-right facing electrical/piping DPN004924 compartment

Connection Locations, Gallery with horizontal-discharge, Front-right facing electrical/piping DPN004925 compartment

45 Table B.1 Submittal-drawings Contents (continued)

Document Number Title

Electrical Connections

DPN004864 Electrical Field Connections, Downflow, CW305, 375, 415

Connection Locations, Data Hall with horizontal-discharge, Front-left facing DPN004863 electrical/piping compartment

Connection Locations, Bottom-discharge, Front-right facing electrical/piping DPN004901 compartment

Connection Locations, Data Hall with horizontal-discharge, Front-right facing DPN004923 electrical/piping compartment

DPN004903 Connection Locations, Bottom-discharge, Front-left facing electrical/piping compartment

Connection Locations, Gallery with horizontal-discharge, Front-right facing electrical/piping DPN004924 compartment

Connection Locations, Gallery with horizontal-discharge, Front-right facing electrical/piping DPN004925 compartment

Unit-to-Unit Networking

DPN004351 Liebert® iCOM Unit-to-unit Network Connections

46 Vertiv | Liebert® CW™ Installer/User Guide LIEBERT DS, DSE, CW, PDX & PCW UNIT TO UNIT NETWORK CONNECTIONS

RS485 SITE AND BMS COMMUNICATION ETHERNET CONNECTIONS

+ -

1 2 P 2 TB3 A DETAIL A P71 P72 E5 ETHERNET CABLE

TB3 P74 P64 7 (FIELD SUPPLIED)

2 6

P UNIT-TO-UNIT NETWORKING SWITCH

6 (FIELD SUPPLIED)

P76 iCOM 2 1

1 1

MICROPROCESSOR P P AND I/O BOARD P75 TO / FROM OTHER

1 0

2 2 NETWORKED UNITS

P P

P95 3

P100 7

P95 DVI-D CABLE CONNECTION TO 7-INCH ICOM DISPLAY P100 POWER SUPPLY TO 7-INCH ICOM DISPLAY

DPN004351 REV : 2 Page :1 /2 REV DATE : 6/18 Form No.: DPN001040_REV4 No.: Form LIEBERT DS, DSE, CW, PDX & PCW UNIT TO UNIT NETWORK CONNECTIONS

ETHERNET CABLE (FIELD SUPPLIED)

P71 P72 E5 P71 P72 E5

TB3 P74 P64 7 TB3 P74 P64 7

2 6 2 6

P P

6 6

P P

P76 iCOM 2 1 P76 iCOM 2 1

1 1 1 1

MICROPROCESSOR P P MICROPROCESSOR P P AND I/O BOARD AND I/O BOARD P75 P75

1 0 1 0

2 2 2 2

P P P P

P95 3 P95 3

1 1

P P

P100 7 P100 7

P P

P95 DVI-D CABLE CONNECTION TO 7-INCH ICOM DISPLAY P100 POWER SUPPLY TO P95 DVI-D CABLE CONNECTION 7-INCH ICOM DISPLAY TO 7-INCH ICOM DISPLAY P100 POWER SUPPLY TO 7-INCH ICOM DISPLAY

NOTE* For dual-unit network configurations only

DPN004351 REV : 2 Page :2 /2 REV DATE : 6/18 Form No.: DPN001040_REV4 No.: Form LIEBERT CW COMPONENT LOCATION DIAGRAM CW305, 375, 415 W/ HORIZONTAL DISCHARGE 1. Blower/Motor (Typical 3) 2. Line Reactor Transformers (Typical 3) Notes: 1. Electrical Compartment (item #6) shown on left side of unit. 3. Evaporator Coil Unit may be ordered with Electrical Compartment on either side, or with Electrical Compartment facing into Gallery space. 4. Air Filters 2. Grills and panels removed for clarity. 5. Condensate Pump (optional) 6. Electric Panel 7. THD Mitigation Device (optional) 8. VFD Assemblies (Typical 3) 9. 575V Transformer (if applicable) 1 8

6 9 7 5 3

DPN004861 REV : 0 Page :1 /1 REV DATE : 11/18 Form No.: DPN001040_REV4 No.: Form LIEBERT CW CABINET DIMENSIONAL DATA CW305, 375, 415 W/ HORIZONTAL DISCHARGE 115 3/8" 2929mm Outside of Duct Flange Rear of Unit (Gallery Side)

60 3/4" 1544mm 53 1/8" 1348mm 60 1/8" Outside of 1527mm Duct Flange

For Unit Disassembly Data 120 1/8" 3050mm Refer to DPN004868 1 3/4" 44mm Duct Flange Fan Plenum is shipped separately and field installed. 46" 1168mm Data Hall Unit configuration

Front of unit

88 1/8" 70" 2238mm 1779mm Front Left Facing Electrical Compartment Louvers (may be ordered with Electrical Compartment facing rear)

Louvers in 59" Typ. non-raised 1499mm floor application. 24 1/4" Louver Section 616mm Front of unit 144" 3658mm Front Right Facing Electrical Compartment Front of Unit (may be ordered with (Data Hall Side) Electrical Compartment facing rear)

DPN004862 REV : 0 Page :1 /1 REV DATE : 11/18 Form No.: DPN001040_REV4 No.: Form LIEBERT CW PRIMARY CONNECTION LOCATIONS CW305, 375, 415 DATA HALL W/ HORIZONTAL DISCHARGE FRONT LEFT FACING ELECTRICAL/PIPING COMPARTMENT LV2 LV4 Data Hall Side X O 1

HV1 Y

HV2 LV1 Top View LV3 R S CP

S R Bottom View LV3 LV1 HV2 Y HV1

X O 1 LV4 LV2 Top View Bottom View POINT Description Connection Size/Opening X in. (mm) Y in. (mm) X in. (mm) Y in. (mm) HV1 2-7/8 (73) 2-1/2 (63) 6 (153) Electrical Conn. (High Volt) 6-1/4 (160) 2-1/2" HV2 6-1/4 (159) 5-5/8 (143) 4-1/4 (108) LV1 18-1/8 (459) 6-3/8 (163) 6-1/2 (165) 20-5/8 (524) LV2 19-1/2 (494 5 (129) 4-1/2 (114) Electrical Conn. (Low Volt) 1-1/2" LV3 20-7/8 (529) 6-3/8 (163) 6-1/2 (165) 22-5/8 (575) LV4 22-1/4 (564) 5 (129) 4-1/2 (114) CD Condensate Drain2 N/A N/A 84-1/2 (2146) 55-1/2 (1410) 3/4" NPT Female CP Condensate Pump 20 (509) 27-7/8 (707) N/A N/A 1/2" O.D. Cu S Supply Pipe Connection 15 (381) N/A N/A 30 (762) 4-1/8" O.D. Cu R Return Pipe Connection 9 (229)

Notes:

1. Drawing not to scale. All dimensions from left corner on service side and have a tolerance of ± 1/2" (13mm). 2. Field pitch Condensate Drain line a minimum of 1/8" (3.2mm) per 12" (305mm). Install an external 5-1/2" (140mm) trap in the drain line (if desired). The factory unit does not contain a trap. Select appropriate drain system materials. The drain must comply with all local codes. 3. Piping connection can be made at the top or bottom of the unit. DPN004863 REV : 0 Page :1 /1 REV DATE : 11/18 Form No.: DPN001040_REV4 No.: Form LIEBERT CW ELECTRICAL FIELD CONNECTIONS CW305, 375, 415 DOWNFLOW MODELS

STANDARD ELECTRICAL CONNECTIONS 1. High voltage entrance - Located in bottom and top of box (quantity 2). Raceway in front left corner of enclosure for routing high voltage wires thru enclosure. 2. Low voltage entrance – Located in bottom and top of box (quantity 4). Raceway in front right corner of enclosure for routing low voltage wires thru enclosure. 3. Three phase electrical service - Terminals are on top of disconnect switch. Three phase service not provided by Liebert. 4. Earth ground - Terminal for field supplied earth grounding wire and component ground terminal strip. Earth grounding required for Liebert units. 5. Unit factory installed disconnect switch and Main Fuses – Access to the high voltage electric panel compartment can be obtained only with the switch in the “off” position. Fused disconnects are provided with a defeater button that allows access to the electrical panel when power is on. 6. Remote unit shutdown - Replace existing jumper between terminals 37 & 38 with field supplied normally closed switch having a minimum 75VA, 24VAC rating. Use field supplied Class 1 wiring. 7. Customer alarm inputs - Terminals for field supplied, normally open contacts, having a minimum 75VA, 24VAC rating, between terminals 24 & 50, 51, 55, 56. Use field supplied Class 1 wiring. Terminal availability varies by unit options. 8. Common alarm - On any alarm, normally open dry contact is closed across terminals 75 & 76 for remote indication. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring.

DPN004864 REV : 0 Page :1 /3 REV DATE : 11/18 Form No.: DPN001040_REV4 No.: Form LIEBERT CW ELECTRICAL FIELD CONNECTIONS CW305, 375, 415 DOWNFLOW MODELS

OPTIONAL ELECTRICAL CONNECTIONS 9. Condensate alarm (with condensate pump option) - On pump high water indication, normally open dry contact is closed across terminals 88 & 89 for remote indication. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring. 10. Remote humidifier - On any call for humidification, normally open dry contact is closed across terminals 11 & 12 to signal field supplied remote humidifier. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring 11. Reverse Starter contacts - Normally open dry contact is closed across terminals 102 & 103 for power supply 1 and 106 & 107 for power supply 2 to indicate the active power feed. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring. 12. Smoke sensor alarm - Factory wired dry contacts from smoke sensor are 91-common, 92-NO, and 93- NC. Supervised contacts, 80 & 81, open on sensor trouble indication. This smoke sensor is not intended to function as, or replace, any room smoke detection system that may be required by local or national codes. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring. 13. Analog inputs- Terminals 41, 42, 43, and 44 are user configurable for 0-10V, 0-5V, or 4-20MA.

OPTIONAL LOW VOLTAGE TERMINAL PACKAGE CONNECTIONS 14. Remote unit shutdown - Two additional contact pairs available for unit shutdown (labeled as 37B & 38B, 37C & 38C). Replace jumpers with field supplied normally closed switch having a minimum 75VA, 24VAC rating. Use field supplied Class 1 wiring. 15. Common alarm - On any alarm, two additional normally open dry contacts are closed across terminals 94 & 95 and 96 & 97 for remote indication. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring. 16. Main fan enabled contact - On VFD enable, normally open dry contact is closed across terminals 84 & 85 for remote indication. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring. 17. LiquiTect shutdown and dry contact - On LiquiTect activation, normally open dry contact is closed across terminals 58 & 59 for remote indication (LiquiTect sensor ordered separately). 1 AMP, 24VAC max load. Use Class 1 field supplied wiring.

OPTIONAL COMMUNICATION CONNECTIONS 18. Unit-to-Unit – Plug 64 is reserved for U2U communication 19. Site and BMS – Plug 74 and terminal block 3 are reserved for Site and BMS connections. Plug 74 is an eight pin RJ45 for a Cat 5 cable. Terminal block 3 is a two position screw terminal block for use with twisted pair wires.

DPN004864 REV : 0 Page :2 /3 REV DATE : 11/18 Form No.: DPN001040_REV4 No.: Form LIEBERT CW ELECTRICAL FIELD CONNECTIONS

CW305, 375, 415 DOWNFLOW MODELS 24 1 RAD1 19 18 2 50 7 ALARM RAD2 INPUTS 51 CPSS 55 RAD4 56

COMMON 75 8 ALARMS 76 94 EXTRA 95 15 COMMON ALARM 96 97 See Detail A

9 CONDENSATE 88 PUMP 89 3 LIQUITECT 58 17 SHUT DOWN 59 MAIN FAN 84 16 ENABLED 85 11 10 REMOTE HUMID 12 4

102 REV 103 5 11 STARTER RA / RB 106 107 37C EXTRA 14 38C REMOTE SHUT DOWN 37B 38B REMOTE 37 6 SHUT DOWN 38

80 81 SMOKE 91 12 DETECTION 92 93

41 ANALOG 42 13 INPUTS 43 44

1 2 Detail A DPN004864 REV : 0 Page :3 /3 REV DATE : 11/18 Form No.: DPN001040_REV4 No.: Form LIEBERT CW AIRFLOW SCHEMATIC CW305, 375, 415 DOWNFLOW UNIT W/ HORIZONTAL DISCHARGE

115 3/8" 2 3/8" 2929mm 60mm Outside of Duct Flange Return Air from Data Center

53 1/8" 1348mm Outside of Duct Flange 61" 1550mm Fan Section

4 3/8" 111mm

1 3/4" 44mm Duct Flange

10 1/2" 267mm

Supply Air to Data Center

70" 1779mm 1

3" 76mm 7 1/2" 114" 189mm 2896mm Front (Data Hall Side)

Notes:

1. Electrical Compartment shown on left side of unit. Unit may be ordered with Electrical Compartment on right or left side, or with Electrical Compartment facing into the Gallery space.

DPN004865 REV : 0 Page :1 /1 REV DATE : 11/18 Form No.: DPN001040_REV4 No.: Form LIEBERT CW FLOORSTAND DIMENSIONAL DATA CW305, 375, 415

2 2 2 36 3/8" 2 1/2" 33 7/8" 924mm 64mm 860mm Typ. (2) Plcs.

2 28 1/8" 43 1/2" 715mm 1105mm Typ. (2) Plcs. Typ. (2) Plcs. 2 56 1/4" 1430mm Typ.

Top View 2 2 33 7/8" 2 46" 36 3/8" 860mm 1168mm 924mm

2 116 1/4" 2953mm

143 3/4" 60" 3651mm 1524mm 24" Overall Overall 610mm Length Depth

Front View Right Side View

Height in. ( mm ) A 1 Notes: 12 (305) 24 (610) 1. Leveling feet are provided with u 1-1/2” (38mm) adjustment from nominal height “A”. 30 (762) 2. Dimensions are to center of feet. 36 (914) 3. Floorstand shown in configuration for Electrical Box on the left side of the unit. When unit is 42 (1069) ordered with the Electrical Box on the right side of the unit, cantilevered portion of floorstand will appear on the right side. 48 (1219)

DPN004866 REV : 0 Page :1 /1 REV DATE : 11/18 Form No.: DPN001040_REV4 No.: Form LIEBERT CW FLOOR PLANNING DIMENSIONAL DATA FOR ADJACENT CW305, 375, 415 UNITS

2 Gasketing shown is for pictorial purposes only to show edges of unit that require gap sealing. Gasketing and method to be provided and applied by others in the field.

Data Hall Side

A View with both Electrical Component Sections on left

Notes: 3/4" 1 19mm 1. Gap is measured between frame members of adjacent units. Minimum gap to be filled with gasketing between each unit 2. Gasketing required only on shortest section being placed adjacent to another unit. DETAIL A 3. View shows both Electronic Component Sections on the left. The same gasketing instructions apply when both Electronic Component Sections are on the right, or with one on the left and the other on the right.

DPN004869 REV : 0 Page :1 /2 REV DATE : 11/18 Form No.: DPN001040_REV4 No.: Form LIEBERT CW FLOOR PLANNING DIMENSIONAL DATA FOR ADJACENT CW305, 375, 415 UNITS

Gasketing shown is for pictorial purposes only to show edges of unit that require gap sealing. Gasketing and method to be provided and applied by others in the field.

B View with Electrical Component Sections at opposite ends

3/4" 1 19mm Minimum gap to be filled with gasketing between each unit

Notes: DETAIL B 1. Gap is measured between frame members of adjacent units.

DPN004869 REV : 0 Page :2 /2 REV DATE : 11/18 Form No.: DPN001040_REV4 No.: Form LIEBERT CW INSTALLATION & SERVICE CLEARANCE DATA CW305-415 PERIMETER INSTALLATION AND SERVICE CLEARANCE HORIZONTAL DISCHARGE

Wall

Full Unit and Electrical Panel Access Piping & Cables can be routed in this zone. 66" (1676mm) Data Hall Full Unit and Electrical Panel Access

Notes: 1. Electrical Compartment is shown on the right side of the unit. Unit may be ordered with Electrical Compartment on either side, or with Electrical Compartment facing into Gallery Space.

DPN004870 REV : 0 Page :1 /3 REV DATE : 2/19 Form No.: DPN001040_REV4 No.: Form LIEBERT CW INSTALLATION & SERVICE CLEARANCE DATA CW305-415 PERIMETER INSTALLATION AND SERVICE CLEARANCE BOTTOM DISCHARGE

Wall Piping and Cables can be routed in this zone.

Unit Disassembly access and Electrical Panel access

66" (1676mm) Full Unit and Electrical Panel Access

Gallery Side

Notes: 1. Electrical Compartment is shown on the right side of the unit. Unit may be ordered with Electrical Compartment on either side, or with Electrical Compartment facing into Data Hall.

DPN004870 REV : 0 Page :2 /3 REV DATE : 2/19 Form No.: DPN001040_REV4 No.: Form LIEBERT CW INSTALLATION & SERVICE CLEARANCE DATA CW305-415 GALLERY INSTALLATION AND SERVICE CLEARANCE

Piping and Cables can be routed in this zone.

Data Hall Wall

Gallery Side 66" (1676mm) Electrical Panel Access

Notes: 1. Electrical Compartment is shown on the left side of the unit. Unit may be ordered with Electrical Compartment on either side, or with Electrical Compartment facing into Data Hall.

DPN004870 REV : 0 Page :3 /3 REV DATE : 2/19 Form No.: DPN001040_REV4 No.: Form LIEBERT CW COMPONENT LOCATION DIAGRAM CW305, 375, 415 W/ BOTTOM DISCHARGE 1. Blower/Motor (Typical 3) 2. Line Reactor Transformers (Typical 3) 3. Evaporator Coil 4. Air Filters 5. Condensate Pump (optional, shipped loose) 6. Electric Panel 7. THD Mitigation Device (optional) 8. VFD Assemblies (Typical 3) 9. 575V Transformer (if applicable) 1

6 7 9 3 Panels removed 2 5 for clarity Notes: 1. Electrical Compartment (item #6) shown on left side of unit. Unit may be ordered with Electrical Compartment on either side, or with Electrical Compartment facing into Gallery space.

2. Condensate Pump (if ordered) to be shipped loose and attached to this frame member for shipping. Customer to locate and install.

DPN004899 REV : 0 Page :1 /1 REV DATE : 1/19 Form No.: DPN001040_REV4 No.: Form LIEBERT CW CABINET DIMENSIONAL DATA CW305, 375, 415 W/ BOTTOM DISCHARGE

115 3/8" 2929mm Outside of Duct Flange Rear of Unit

61" 53 1/8" 1550mm 1348mm 60 1/8" Outside of 1527mm Duct Flange

120 1/8" 3050mm 1 3/4" 44mm Duct Flange Data Hall Unit configuration Fan Plenum is 46" shipped separately 1168mm and field installed.

Front of unit Front Left Facing Electrical Compartment

88 1/8" 79 1/8" 2239mm 2009mm

24 1/4" 25 1/8" Typ. Front of unit 616mm 638mm 144" 3659mm Front Right Facing Electrical Compartment Front of Unit

DPN004900 REV : 0 Page :1 /1 REV DATE : 1/19 Form No.: DPN001040_REV4 No.: Form LIEBERT CW PRIMARY CONNECTION LOCATIONS CW305, 375, 415 W/ BOTTOM DISCHARGE FRONT RIGHT FACING ELECTRICAL/PIPING COMPARTMENT

S R Top View LV1 LV3 Y

O X 1 HV1 HV2 LV2 LV4 X O 1

LV3 Y LV1

Bottom View

CD R S

Top View Bottom View POINT Description Connection Size/Opening X in. (mm) Y in. (mm) X in. (mm) Y in. (mm) HV1 21 (533) 21-3/8 (543) 5 (127) Electrical Conn. (High Volt) 6-1/4 (159) 2-1/2" HV2 17-5/8 (448) 18-1/4 (464) 3-1/4 (83) LV1 5-3/4 (148) 6-3/8 (162) 3-1/4 (83) 5-1/2 (140) LV2 4-38 (113) 5 (127) 1-1/4 (32) 3-1/2 (89) Electrical Conn. (Low Volt) 1-1/2" LV3 3 (78) 6-3/8 (162) 3-1/4 (83) 5-1/2 (140) LV4 1-5/8 (43) 5 (127) 1-1/4 (32) 3-1/2 (89) CD Condensate Drain3 83 (2108) 54-1/2 (1384) 3/4" NPT Female CP Condensate Pump 2 2 1/2" O.D. Cu N/A N/A S Supply Pipe Connection 15 (381) 28-3/4 (731) 4-1/8 O.D. Cu R Return Pipe Connection 9 (229) Notes:

1. Drawing not to scale. All dimensions from right corner on service side and have a tolerance of ± 1/2" (13mm). 2. Condensate Pump to be field located and installed by customer.

DPN004901 REV : 0 Page :1 /1 REV DATE : 1/19 Form No.: DPN001040_REV4 No.: Form LIEBERT CW PRIMARY CONNECTION LOCATIONS CW305, 375, 415 W/ BOTTOM DISCHARGE FRONT LEFT FACING ELECTRICAL/PIPING COMPARTMENT

S R LV2 LV1 Top View HV2 HV1 Y

1 O X LV3 LV4 LV3 1 LV4 O X HV1

Y HV2 Bottom View LV1 LV2

R S

CD Top View Bottom View POINT Description Connection Size/Opening X in. (mm) Y in. (mm) X in. (mm) Y in. (mm) HV1 2-7/8 (73) 2-1/2 64) 5 (127) Electrical Conn. (High Volt) 6-1/4 (160) 2-1/2" HV2 6-1/4 (159) 5-5/8 (143) 3-1/4 (83) LV1 18-1/8 (459) 6-3/8 (163) 5-1/2 (140) 20-5/8 (524) LV2 19-1/2 (494 5 (129 3-1/2 (89) Electrical Conn. (Low Volt) 1-1/2" LV3 20-7/8 (529) 6-3/8 (163) 5-1/2 (140) 22-5/8 (575) LV4 22-1/4 (564) 5 (129) 3-1/2 (89) CD Condensate Drain3 84-5/8 (2149)54-1/2 (1384) 3/4" NPT Female CP Condensate Pump 1/2" O.D. Cu 2 N/A N/A 2 2 S Supply Pipe Connection 15 (381) 28-3/4 (731) 4-1/8" O.D. Cu R Return Pipe Connection 9 (229)

Notes:

1. Drawing not to scale. All dimensions from right corner on service side and have a tolerance of ± 1/2" (13mm). 2. Condensate Pump to be field located and installed by customer.

3. Field pitch Condensate Drain line a minimum of 1/8" (3.2mm) per 12" (305mm). Install an external 5-1/2" (140mm) trap in the drain line (if desired). The factory unit does not contain a trap. Select appropriate drain system materials. The drain must comply with all local codes. 4. Piping connection can be made at the top or bottom of the unit. DPN004903 REV : 0 Page :1 /1 REV DATE : 1/19 Form No.: DPN001040_REV4 No.: Form LIEBERT CW AIRFLOW SCHEMATIC CW305, 375, 415 DOWNFLOW UNIT W/ BOTTOM DISCHARGE 115 3/8" 2929mm Duct Flange Return Air from Data Center

53 1/8" 1348mm Duct Flange

1 3/4" 44mm Duct Flange

Supply Air to Data Center

115 3/4" 2940mm

55 3/4" 1418mm

34 5/8" 879mm Notes: Typ.

1. Electrical Compartment shown on left side of unit. Unit may be ordered with Electrical Compartment on right or left side of unit.

DPN004904 REV : 0 Page :1 /1 REV DATE : 1/19 Form No.: DPN001040_REV4 No.: Form LIEBERT CW PRIMARY CONNECTION LOCATIONS CW305, 375, 415 DATA HALL W/ HORIZONTAL DISCHARGE FRONT RIGHT FACING ELECTRICAL/PIPING COMPARTMENT HV2 LV4 LV2 Data Hall Side O HV1 1 X

LV3 Y LV1 Top View

S R CP Gallery Side CD

S R Bottom View

LV1 Y LV3

LV4 O X HV1 LV2 HV2 Data Hall Side

Top View Bottom View POINT Description Connection Size/Opening X in. (mm) Y in. (mm) X in. (mm) Y in. (mm) HV1 20-1/8 (513) 21-1/4 (540) 6 (153) Electrical Conn. (High Volt) 6-1/4 (160) 2-1/2" HV2 17-1/2 (444) 18-1/8 (460) 4-1/4 (109) LV1 5-5/8 (144) 6-3/8 (163) 6-1/2 (166) 3-1/8 (79 LV2 4-1/4 (109) 5 (129) 4-1/2 (115) Electrical Conn. (Low Volt) 1-1/2" LV3 2-7/8 (75) 6-3/8 (163) 6-1/2 (166) 1-1/8 (29) LV4 1-1/2 (40) 5 (129) 4-1/2 (115) CD Condensate Drain2 N/A N/A 82-7/8 (2105) 55-1/2 (1410) 3/4" NPT Female CP Condensate Pump 20 (509) 27-7/8 (707) N/A N/A 1/2" O.D. Cu S Supply Pipe Connection 14-7/8 (378) N/A N/A 30 (762) 4-1/8" O.D. Cu R Return Pipe Connection 8-7/8 (225)

Notes:

1. Drawing not to scale. All dimensions from right corner on service side and have a tolerance of ± 1/2" (13mm). 2. Field pitch Condensate Drain line a minimum of 1/8" (3.2mm) per 12" (305mm). Install an external 5-1/2" (140mm) trap in the drain line (if desired). The factory unit does not contain a trap. Select appropriate drain system materials. The drain must comply with all local codes. 3. Piping connection can be made at the top or bottom of the unit. DPN004923 REV : 0 Page :1 /1 REV DATE : 2/19 Form No.: DPN001040_REV4 No.: Form LIEBERT CW PRIMARY CONNECTION LOCATIONS CW305, 375, 415 GALLERY W/ HORIZONTAL DISCHARGE FRONT RIGHT FACING ELECTRICAL/PIPING COMPARTMENT Data Hall Side

CP R S Top View

LV1 LV3 Y LV2 LV4

O 1 HV1 X HV2 Gallery Side LV2 LV4 CD HV2 X HV1 O 1

Y LV3

LV1 Bottom View S R

Data Hall Side

Top View Bottom View POINT Description Connection Size/Opening X in. (mm) Y in. (mm) X in. (mm) Y in. (mm) HV1 21 (533) 21-3/8 (543) 6 (153) Electrical Conn. (High Volt) 6-1/4 (160) 2-1/2" HV2 17-5/8 (448) 18-1/4 (464) 4-1/4 (109) LV1 5-3/4 (148) 6-1/2 (164 6-1/2 (166) 3-1/4 (83) LV2 4-3/8 (113) 5-1/8 (129) 4-1/2 (115) Electrical Conn. (Low Volt) 1-1/2" LV3 3 (78) 6-1/2 (164) 6-1/2 (166) 1-1/4 (32) LV4 1-1/2 (37) 5-1/8 (129) 4-1/2 (115) CD Condensate Drain2 N/A N/A 84-3/4 (2153) 3-5/8 (94) 3/4" NPT Female CP Condensate Pump 20-1/8 (512) 27-7/8 (708) N/A N/A 1/2" O.D. Cu S Supply Pipe Connection 9 (229) N/A N/A 30 (762) 4-1/8" O.D. Cu R Return Pipe Connection 15 (381)

Notes:

1. Drawing not to scale. All dimensions from right corner on service side and have a tolerance of ± 1/2" (13mm). 2. Field pitch Condensate Drain line a minimum of 1/8" (3.2mm) per 12" (305mm). Install an external 5-1/2" (140mm) trap in the drain line (if desired). The factory unit does not contain a trap. Select appropriate drain system materials. The drain must comply with all local codes. 3. Piping connection can be made at the top or bottom of the unit. DPN004924 REV : 0 Page :1 /1 REV DATE : 2/19 Form No.: DPN001040_REV4 No.: Form LIEBERT CW PRIMARY CONNECTION LOCATIONS CW305, 375, 415 GALLERY W/ HORIZONTAL DISCHARGE FRONT LEFT FACING ELECTRICAL/PIPING COMPARTMENT Data Hall Side

R S Top View

HV1 HV2 LV1 Y LV3 1 O LV2 X LV4 Gallery Side LV4 LV2 CD 1 O X

HV2 Y LV1 HV1 LV3

S R Bottom View

Top View Bottom View POINT Description Connection Size/Opening X in. (mm) Y in. (mm) X in. (mm) Y in. (mm) HV1 6-3/8 (162) 5-3/4 (146) 6 (153) Electrical Conn. (High Volt) 6-1/4 (160) 2-1/2" HV2 3 (76) 2-5/8 (67) 4-1/4 (109) LV1 21 (532) 6-1/2 (164 6-1/2 (166) 22-3/4 (578) LV2 22-3/8 (567) 5-1/8 (129) 4-1/2 (115) Electrical Conn. (Low Volt) 1-1/2" LV3 18-1/4 (462) 6-1/2 (164) 6-1/2 (166) 20-3/4 (527) LV4 19-5/8 (497) 5-1/8 (129) 4-1/2 (115) CD Condensate Drain2 N/A N/A 83 (2108) 3-5/8 (94) 3/4" NPT Female CP Condensate Pump 20-1/8 (512) 27-7/8 (708) N/A N/A 1/2" O.D. Cu S Supply Pipe Connection 9 (229) N/A N/A 30 (762) 4-1/8" O.D. Cu R Return Pipe Connection 15 (381)

Notes:

1. Drawing not to scale. All dimensions from right corner on service side and have a tolerance of ± 1/2" (13mm). 2. Field pitch Condensate Drain line a minimum of 1/8" (3.2mm) per 12" (305mm). Install an external 5-1/2" (140mm) trap in the drain line (if desired). The factory unit does not contain a trap. Select appropriate drain system materials. The drain must comply with all local codes. 3. Piping connection can be made at the top or bottom of the unit. DPN004925 REV : 0 Page :1 /1 REV DATE : 2/19 Form No.: DPN001040_REV4 No.: Form LIEBERT CW GENERAL ARRANGEMENT DIAGRAM CW305, 375, 415

Air Flow

Valve Actuator Bleed Valve

Chilled Water Return

Chilled Water Coil Chilled Water Supply

Shut 1 Off 2-Way Chilled Valves Water Valve

Hose 1 Bibs

FACTORY PIPING FIELD PIPING

Notes:

1. Components are not supplied by Liebert, but are required for proper circuit operation and maintenance.

DPN004952 REV : 0 Page :1 /1 REV DATE : 2/19 Form No.: DPN001040_REV4 No.: Form Vertiv | Liebert® CW™ Installer/User Guide VertivCo.com | Vertiv Headquarters, 1050 Dearborn Drive, Columbus, OH, 43085, USA

© 2018 VertivCo. Allrights reserved. Vertivandthe Vertivlogo are trademarks or registeredtrademarks ofVertivCo. Allother names andlogos referredto are trade names, trademarks or registered trademarks oftheir respective owners. While everyprecaution has been taken to ensure accuracyand completeness herein, Vertiv Co. assumes no responsibility, and disclaims all liability, for damages resulting from use of this information or for any errors or omissions. Specifications are subject to change without notice. SL-70374_REV1/590-2204-501A