Attachment 2 OandM manual.pdf

Precision Cooling For Business-Critical Continuity™

Liebert® CW™

User Manual–26-400 kW, Upflow and Downflow, 50/60Hz i

TABLE OF CONTENTS

IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS

1.0 LIEBERT CW NOMENCLATURE

2.0 PRE-INSTALLATION GUIDELINES

2.1 Room Preparation

2.2 Location Considerations

2.3 Installing Liebert CW300 and Liebert CW400 Units

2.4 Air Distribution—Downflow Units

2.5 Air Distribution—Upflow Units

2.6 Connections and System Setup

2.7 Operating Conditions

2.7.1 Cooling, Humidification and Dehumidification

2.7.2 Heating

3.0 LIEBERT CW DIMENSIONS AND WEIGHTS

3.1 Dimensions—Downflow Models with EC Fans

3.2 Dimensions—Upflow Models with EC Fans

3.3 Dimensions—Downflow Models With Centrifugal Fans

3.4 Dimensions—Upflow Models With Centrifugal Fans

3.5 Floor Stand Dimensions

3.6 Plenum Dimensions

4.0 EQUIPMENT INSPECTION AND HANDLING

4.1 Packaging Material—All Models

SAFETY INFORMATION

4.2 Unpacking the Unit

4.2.1 Removing the Unit from the Skid With a Forklift

4.2.2 Moving the Unit to the Installation Location with Piano Jacks

4.2.3 Removing Piano Jacks

4.2.4 Removing Liebert CW from Skid Using Rigging

5.0 EC FANS

5.1 Lowering and Removing EC Fans—Downflow Units Only

5.1.1 Lowering the EC Fans into the Floor Stand

5.1.2 EC Fan Block-Off Panel Kit—Optional

5.1.3 Removing EC Fans—Downflow Units Only

5.2 Installing Upflow EC Fan Plenums

5.2.1 Liebert CW Upflow Plenum Assembly Parts

5.2.2 Upflow Plenum and EC Fan Preparation

6.0 ELECTRICAL CONNECTIONS

6.1 Electrical Connections

ii

7.0 PIPING

7.1 Fluid Connections

7.1.1 Condensate Piping—Field-Installed

7.1.2 Humidifier Supply Water—Optional Infrared

7.1.3 Humidifier Supply Water—Optional Steam Generating Humidifier

7.2 Chilled Water Piping

7.2.1 Requirements of Systems Using Water or Glycol

8.0 PIPING SCHEMATICS

9.0 CHECKLIST FOR COMPLETED INSTALLATION

9.1 Moving and Placing Equipment

9.2 Electrical

9.3 Piping

9.4 Other

10.0 INITIAL STARTUP CHECKS AND COMMISSIONING PROCEDURE FOR WARRANTY

INSPECTION

10.1 Information for Warranty Inspection—Remove Power From Unit Disconnect

10.2 Startup Checks With Panels Removed and Main Disconnect Off

10.2.1 Inspect and Record

10.3 Startup

10.4 Additional Considerations for Upflow Units

11.0 TROUBLESHOOTING

12.0 MAINTENANCE

12.1 System Testing

12.1.1 Environmental Control Functions

12.1.2 Electric Panel

12.2 Filters

12.3 Blower Package—Centrifugal Fans

12.3.1 Fan Impellers and Bearings

12.3.2 Belts—Except with EC Fans

12.3.3 Electronic Variable Speed Drive (Inverter)

12.4 Blower Package—EC Fans

12.4.1 Fan Impellers and Bearings

12.4.2 Protective Features

12.5 Humidifier

12.5.1 Infrared Humidifier

12.5.2 Cleaning Humidifier Pan and Float Switch

12.5.3 Changing Humidifier Lamps

12.6 Steam Generating Humidifier

12.7 Condensate Drain and Condensate Pump Systems

12.7.1 Condensate Drain

12.7.2 Condensate Pump

12.8 Facility Fluid and Piping Maintenance

iii

12.9 HVAC Maintenance Checklist

APPENDIX A - INSTALLING LIEBERT CW300 AND LIEBERT CW400

COMPLIANCE WITH EUROPEAN UNION DIRECTIVES. . . . . . . . . . . . . . . . . . . . . . INSIDE BACK COVER

FIGURES

Figure 1 Downflow unit ducting and plenum ducting Figure 2 Upflow ducting configurations with centrifugal fans Figure 3 Plenum ducting arrangement—Upflow models with EC fans Figure 4 Cabinet and floor planning dimensions, downflow models CW026 - CW084 with EC fans Figure 5 Cabinet and floor planning dimensions, CW026, CW038 and CW041, downflow with EC fans, front discharge Figure 6 Cabinet and floor planning dimensions, CW051, CW060, CW076 and CW084, downflow with EC fans, front discharge Figure 7 Cabinet and floor planning dimensions, downflow models CW106 and CW114 with EC fans Figure 8 Cabinet and floor planning dimensions for downflow models CW089, CW106 and CW114 with EC fans Figure 9 Cabinet and floor planning dimensions, CW146 - CW181, downflow with EC fans, front discharge Figure 10 Cabinet and floor planning dimensions for downflow models CW146 and CW181 with

EC fans Figure 11 Dimensions and floor planning data downflow models CW300, CW400 with EC fans and filter plenums Figure 12 Cabinet and floor planning dimensions, upflow models CW026-CW084 with EC fans, front air return Figure 13 Cabinet and floor planning dimensions, upflow models CW026 - CW084 with EC fans, bottom air return Figure 14 Cabinet and floor planning dimensions, upflow models CW106, CW114 with EC fans, front return Figure 15 Cabinet and floor planning dimensions, upflow models CW106, CW114 with EC fans, rear return Figure 16 Cabinet and floor planning dimensions, downflow models CW106 and CW114 with centrifugal fans Figure 17 Cabinet and floor planning dimensions, upflow models CW026-CW084 with centrifugal fans Figure 18 Cabinet and floor planning dimensions upflow models, CW106 and CW114 with centrifugal fans Figure 19 Floor stand and floor planning dimensions, downflow models CW026 - CW041 with EC fans Figure 20 Floor stand and floor planning dimensions, downflow models CW076 and CW084 with

EC fans Figure 21 Floor stand and floor planning dimensions, downflow models CW089, CW106 and

CW114 with EC fans Figure 22 Floor stand and floor planning dimensions, downflow models CW146 and CW181 with

EC fans Figure 23 Floor stand and floor planning dimensions—Downflow CW300 AND CW400 with EC fans Figure 24 Floor stand dimensions, optional steam, hot water reheat and humidifier piping entrances for downflow models CW026 - CW84 with centrifugal fans Figure 25 Floor stand dimensions for downflow models CW106 and CW114 with centrifugal fans Figure 26 Plenum dimension, CW026 - CW084 upflow plenums with EC fans iv

Figure 27 Plenum dimensions for upflow models CW026 - CW084 with centrifugal fans Figure 28 Plenum dimensions for upflow models CW106 and CW114 with centrifugal fans Figure 29 Plenum dimensions CW106, CW114 upflow plenums with EC fans Figure 30 Filter plenum dimensions, downflow models CW146 and CW181 with EC fans Figure 31 Equipment recommended for handling the Liebert CW Figure 32 Removing packaging Figure 33 Remove the unit from the skid Figure 34 Moving the unit to its installation location Figure 35 Locate center of gravity marker and place slings Figure 36 Using rigging to lift Liebert CW off skid—Models CW026-CW181 Figure 37 EC fan lowering procedure Figure 38 EC fan block-off panel kit- add data from DPN002037 need to add operation in up position . . . 44 Figure 39 EC fan lowering and removal procedure Figure 40 Non-grilled plenum—122" (3099mm) unit length Figure 41 Grilled plenum, front discharge—122" (3099mm) unit length Figure 42 Grilled plenum, rear discharge—122" (3099mm) unit length Figure 43 Non-grilled plenum—99" (2515mm) unit length Figure 44 Grilled plenum, front discharge—99" (2515mm) unit length Figure 45 Grilled plenum, rear discharge—99" (2515mm) unit length Figure 46 Non-grilled plenum—50", 74" (1270mm, 1880mm) unit length Figure 47 Grilled plenum, front discharge—50", 74" (1270mm, 1880mm) unit length Figure 48 Grilled plenum, rear discharge—50", 74" (1270mm, 1880mm) unit length Figure 49 EC fan assembly Figure 50 Recommended tools for installing the upflow plenum and EC fan Figure 51 Non-grilled plenum / Grilled plenum-front discharge Figure 52 Grilled plenum-rear discharge Figure 53 Plenum placement on top of Liebert CW unit Figure 54 EC fan assembly alignment for placement on top of Liebert CW unit Figure 55 EC fan assembly placement and attachment on top of Liebert CW unit Figure 56 EC fan wire routing Figure 57 Junction box connection (fan 1 and 2 for units with 2 or 3 fans) Figure 58 Junction box connection (Fan 3 for units with three fans / Fan 1 for single-fan units) Figure 59 Front frame members for non-grilled and grilled rear-discharge plenum Figure 60 Grilled front-discharge plenum grille attachment Figure 61 Non-grilled and grilled rear-discharge plenum front panel attachment Figure 62 Grilled plenum front / rear-discharge top panel attachment Figure 63 Electrical field connections for downflow models CW026 - CW084 Figure 64 Electrical field connections (Ethernet) for downflow models CW026 - CW084 Figure 65 Electrical field connections for downflow models CW089, CW106 and CW114 Figure 66 Electrical field connections (Ethernet) for downflow models CW089, CW106 and CW114 Figure 67 Electrical field connections (high voltage) for upflow models CW026 - CW084 Figure 68 Electrical field connections (low voltage) for upflow models CW026 - CW084 Figure 69 Electrical field connections (Ethernet) for upflow models CW026 - CW084 Figure 70 Electrical field connections (Ethernet) for upflow models CW106 and CW114 Figure 71 Electrical field connections (low voltage) for upflow models CW106 and CW114 Figure 72 Electrical field connections (low voltage Ethernet) upflow models CW106 and CW114 Figure 73 Electrical field connections for downflow models CW146 and CW181 with EC fans Figure 74 Gravity drain for downflow and upflow units Figure 75 Downflow general arrangement, CW026-CW114 Figure 76 Downflow general arrangement, CW181-CW146 v

Figure 77 Primary connection locations, downflow models CW026 - CW041 with EC fans Figure 78 Primary connection locations, downflow models CW051 and CW060 with EC fans Figure 79 Primary connection locations, downflow models CW076 - CW084 with EC fans Figure 80 Primary connection locations, downflow models CW089, CW106 and CW114 with EC fans . . . 91 Figure 81 Primary connection locations, downflow models CW146 and CW181 with EC fans Figure 82 Primary connection locations, downflow units, model CW300 and CW400 with EC fans Figure 83 Piping connections, downflow models CW026 - CW084 with centrifugal fans Figure 84 Piping connections for downflow models CW106 and CW114 with centrifugal fans Figure 85 Upflow general arrangement Figure 86 Piping connections for upflow models CW026 - CW084 Figure 87 Piping connections for upflow models CW106 and CW114 Figure 88 Correct orientation of float switch Figure 89 Infrared humidifier lamps Figure 90 Steam generating humidifier Figure 91 Run/drain switch Figure 92 Steam generating humidifier control board Figure 93 Rear floor stand and rear unit mounted on floor stand Figure 94 Rear floor stand jack Figure 95 Floor stand bolt locations Figure 96 Module bolt locations Figure 97 Fan deck bolt locations Figure 98 Wire harness routing point Figure 99 Wire harness junction box detail

TABLES

Table 1 Shipping dimensions Table 2 Shipping weights Table 3 Liebert CW upflow plenum with EC fan assembly(s) configurations Table 4 Key to Liebert CW Upflow plenum assembly parts Table 5 Liebert CW Upflow EC fan assembly weight Table 6 Maximum harmonic current distortion, IEEE-519-1992 Table 7 Typical TDD for CW106, CW114 and CW146 at 460V Table 8 Typical TDD for CW181 at 460V Table 9 Blower troubleshooting Table 10 Chilled water troubleshooting Table 11 Humidifier—steam generator troubleshooting Table 12 Humidifier—infrared troubleshooting Table 13 Reheat troubleshooting Table 14 Humidifier canister part numbers Table 15 Faults—canister generator humidifier Table 16 Steam generating humidifier capacity Table 17 DIP switch settings for steam generating humidifier Table 18 Liebert CW300 and Liebert CW400 component parts and weights Table 19 Table 2 - Liebert CW300 and Liebert CW400 Assembly Parts vi

1 Liebert® CW™

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 properly trained and qualified personnel should move, install or service this equipment.

Adhere to all warnings, cautions and installation, operating and safety instructions on the unit and in this manual. Follow all operating and user instructions.

! WARNING

Arc flash and electric shock hazard. Disconnect all electric power supplies and wear protective equipment per NFPA 70E before working within 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 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 Liebert iCOM control.

The line side of the disconnect switch on the front of the unit contains live high-voltage.

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 high-speed moving parts. Can cause injury or death.

Disconnect all local and remote electric power supplies before working in the unit.

Do not operate this unit with any or all cabinet panels removed.

Do not operate upflow units without installing a plenum, ductwork or guard over the blower opening(s) on the top surface of the unit cabinet.

Ductwork must be connected to the blower(s), or a plenum must be installed on the blower deck for protection from rotating blower wheel(s) on upflow units.

! WARNING

Risk of top-heavy unit falling over. Can cause equipment damage, injury or death.

Read all of the following instructions before attempting to move the unit, lift it, remove packaging or prepare the unit for installation.

! CAUTION

Risk of contact with hot surfaces. Can cause injury.

The humidifiers and reheats are extremely hot during unit operation. Allow sufficient time for them to cool before working within the unit cabinet. Use extreme caution and wear protective gloves and arm protection when working on or near hot discharge lines, humidifiers and reheats.

! CAUTION

Risk of sharp edges, splinters and exposed fasteners. Can cause injury.

Only properly trained and qualified personnel wearing appropriate safety headgear, gloves, shoes and glasses should attempt to move the unit, lift it, remove packaging or prepare the unit for installation.

Liebert® CW™ 2

NOTICE

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

This unit requires a water drain connection. Drain lines must be inspected regularly 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. This unit may also require an external water supply to operate.

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

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

Emerson recommends installing leak detection equipment for unit and supply lines.

NOTICE

Risk of a leaking coil due to freezing and/or corrosion. Can cause equipment and serious building damage.

Cooling coils and piping systems that are connected to open cooling towers or other open water/glycol systems are at high risk for freezing and premature corrosion. Fluids in these systems must contain the proper antifreeze and inhibitors to prevent freezing and premature coil corrosion. The water or water/glycol solution must be analyzed by a competent water treatment specialist before startup to establish the inhibitor requirement. The water or water/glycol solution must be analyzed every six months to determine the pattern of inhibitor depletion. The complexity of water-caused problems and their correction makes it important to obtain the advice of a water treatment specialist and follow a regularly scheduled maintenance program.

NOTICE

Risk of overhead interference. Can cause unit and/or building damage.

The unit may be too tall to fit through a doorway while on the skid. Measure the unit and doorway heights and refer to the installation plans to verify clearances prior to moving the unit.

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 Liebert CW upright, indoors and protected from dampness, freezing temperatures and contact damage.

Liebert CW Nomenclature

3 Liebert® CW™

1.0 LIEBERT CW NOMENCLATURE

CW

CW = Liebert CW Floor Mount Chilled Water Unit

026 D C S A 2 1234 A

Nominal Capacity, kW

D = Downflow U = Upflow

C = Chilled Water

S = Centrifugal Fan with Standard Motor

V = Centrifugal Fan with Variable Speed Drive

1 = EC Motorized Impeller H = EC Motorized Impeller with THD

2 = 2-Way Valve, Standard Pressure 3 = 3-Way Valve, Standard Pressure 1 = 2-Way Valve, High Pressure T = 3-Way Valve, High Pressure

A-Z = Standard configuration

S = SFA

A = 460/3/60 B = 575/3/60 C = 208/3/60 D = 230/3/60 2 = 380/3/60 F = 380/3/50 G = 415/3/50 M = 380-415/3/50

XXXX

Pre-Installation Guidelines

Liebert® CW™ 4

2.0 PRE-INSTALLATION GUIDELINES

2.1 Room Preparation

• Verify that the floor is level, solid and sufficient to support the unit. See Table 2 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 Liebert CW units 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

Figures 4 through 30 for dimensions.

• Emerson recommends installing an under-floor water detection system. Contact your local Emer-son representative for information.

2.2 Location Considerations

For a downflow unit, the unit can sit on an accessible, elevated flooring system. It may be necessary to furnish additional pedestal support below the unit to ensure maximum structural support. A separate floor stand for the unit may be used as support, independent of the elevated floor and installed prior to the flooring system.

For downflow and upflow units, provide approximately 34" (864mm) service clearance on the left, right and in front of the unit whenever possible. The minimum space required for service is 18" (457mm) on the left end, 18" (457mm) on the right end and 24" (610mm) in front of the unit. This space is necessary to permit routine maintenance, such as replacing filters and adjusting the fan speed. On downflow units and upflow CW106 and CW114 models, left- and right-end minimum clearances are 0" (0 mm), with the exception of rear return.

Avoid installing units in an alcove or at the extreme end of a room that has a high aspect ratio (long narrow room). Also avoid installing units too close together. This tends to reduce the effectiveness of the air distribution as compared to units located 30-40 feet (9-12m) apart.

2.3 Installing Liebert CW300 and Liebert CW400 Units

Installing Liebert CW300 and Liebert CW400 differ from methods to install other Liebert CW units;

for details, refer to Appendix A - Installing Liebert CW300 and Liebert CW400.

2.4 Air Distribution—Downflow Units

• Verify that the raised floor has been properly sized for the unit’s airflow and the room is free of airflow restrictions.

• Perforated floor tiles in the raised floor should ensure minimal pressure loss.

• The raised floor must provide 7-1/2" (191mm) of clearance.

• Ensure that there is adequate clearance above the unit for service, such as replacing filters.

• Optional plenums are available for downflow unit ducting.

• If installing units with electrically commutated fans (EC fans), there must be 24" minimum clear-ance below the unit to lower the fans. Fans may also remain the in unit if desired.

• A filter plenum is required for Liebert CW146 and CW181 units.

NOTE

The floor stand used with EC units is not symmetrical and its orientation to the Liebert CW is critical to lowering the EC fans. Unless the floor stand is installed in the correct position, the blowers will not lower into the floor stand.

5 Liebert® CW™

Figure 1 Downflow unit ducting and plenum ducting

Provided Service Access Door for filter replacement

Optional Liebert Plenum

Field-Fabricated Ductwork

Field-Fabricated Ductwork

DIRECT UNIT DUCTING

PLENUM DUCTING

Field Service Access for filter replacement (minimum height of 12" [305mm]; minimum distance from unit, 2" [51mm])

Liebert® CW™ 6

2.5 Air Distribution—Upflow Units

Various configurations are available:

• Front return

• Rear return

• Bottom return (not available on CW106 and CW114 models)

For in-room applications with supply and return grilles, several feet of clearance must be maintained at the intake and discharge of the unit. For a bottom return, at least 6-8 inches of unrestricted under-floor height is needed.

Upflow rear-return configurations use a filter box attached to the back of the Liebert CW. Allow 25" (635 mm) on one side of the unit for access to the rear return filter box. Refer to the filter box installation sheet, which can be found inside the rear return filter box package.

For ducted applications, duct flanges are supplied on the blower outlets. Follow the SMACNA-Duct Construction Standard for single-, dual-, or triple-blower systems. Do not run ductwork off the perimeter flange on the top of the unit. This flange is for positioning and attaching the optional air discharge plenum with grille. Attaching a duct to this flange may reduce airflow to inadequate levels.

Figure 2 Upflow ducting configurations with centrifugal fans

! WARNING

Risk of high-speed moving parts. Can cause injury or death. Disconnect all local and remote electric power supplies and make sure blowers and pulleys have stopped rotating before working in the unit.

Do not operate upflow units without installing a plenum, ductwork or guard over the blower opening(s) on the top surface of the unit cabinet.

Ductwork must be connected to the blower(s), or a plenum must be installed on the blower deck for protection from rotating blower wheel(s) on upflow units.

NOTE

Drain traps are qualified to a return duct static of negative 1.5 i.w.g. (-1.5 i.w.g).

DPN001156

Rev. 0* Follow standard practices on all duct work.

Straight section of duct off of unit to be 1.5 to 2.5 times the longest blower dimension.

Typical ducting shown; ducting may run to either side.

7 Liebert® CW™

Figure 3 Plenum ducting arrangement—Upflow models with EC fans

2.6 Connections and System Setup

• Plan the routing of wiring, piping and ductwork to the unit. See Figures 63 through 73 and

Figures 75 through 87 for unit connection locations.

• The unit requires a drain, which must comply with all applicable codes. This drain line may con-tain boiling water. See 7.1.1 - Condensate Piping—Field-Installed for details.

• Three-phase electrical service is required for all models. Electrical service must conform to national and local electrical codes. See the equipment nameplate for details.

• If seismic requirements apply, consult your local Emerson representative for information about a seismic-rated floor stand.

2.7 Operating Conditions

2.7.1 Cooling, Humidification and Dehumidification

The Liebert CW must be operated in a conditioned space within the operating envelope ASHRAE recommends for data centers: Maximum dew point of 59°F (15°C).

Operating outside this envelope can decrease equipment reliability.

Return air to the Liebert CW 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.

Refer to ASHRAE’s publication, “Thermal Guidelines for Data Processing Environments.”

2.7.2 Heating

The Liebert CW is qualified for heating-only operation at temperatures not exceeding 80°F (27°C).

Follow standard practices in all duct work.

Typical ducting shown may run either direction.

Ducting attached to provided plenum flanges only.

DPN002390

Rev. 0

Liebert CW Dimensions and Weights

Liebert® CW™ 8

3.0 LIEBERT CW DIMENSIONS AND WEIGHTS

Table 1 Shipping dimensions

Model Domestic Packed

in. (mm) Export Packed

in. (mm)

026, 028, 031 55x40x76

(1400x1020x1930) 58x41x82

(1470x1040x2080)

051, 060 77x40x76 (1960x1020x1930)

80x41x82 (2030x1040x2080)

076, 084 102x40x76 (2590x1020x1930)

105x41x82 (2670x1040x2080)

089, 106, 114 125x40x80

(3180x1020x2030) 128x41x82

(3250x1040x2080)

146, 181 125x53x80 (3180x1350x2030)

128x54x82 (3250x1370x2080)

300, 400* 125x53x80 (3180x1350x2030)

128x54x82 (3250x1370x2080)

1. Models CW300 and CW400 ship in two separate sections, each the size shown.

Table 2 Shipping weights

Model

Domestic Packaging

lb. (kg)

Export Packaging

lb. (kg)

026 805 (365) 1030 (467)

038 840 (381) 1065 (483)

041 890 (404) 1115 (506)

051 1135 (515) 1360 (617)

060 1200 (544) 1425 (646)

076 1380 (625) 1630 (739)

084 1480 (671) 1730 (785)

089 1800 (817) 2075 (942)

106 1950 (885) 2225 (1,009)

114 2090 (949) 2365 (1,073)

146 2900 (1,314) 3200 (1,450)

181 2900 (1,314) 3200 (1,450)

300 * 5800 (2,628) 6400 (2,900)

400 * 5800 (2,628) 6400 (2,900)

* Models CW300 and CW400 ship in two separate sections, each weighing half of the amount shown.

9 Liebert® CW™

3.1 Dimensions—Downflow Models with EC Fans

Figure 4 Cabinet and floor planning dimensions, downflow models CW026 - CW084 with EC fans

Model

Dimensions, inches (mm) Net Weight lb (kg)A B C D E F G

H (FC Only) J K

L (EC Only)

M (EC Only)

CW026 50

(1270)

(1168)

(889)

(813)

(1219)

(883)

(203)

(940)

35-5/8 (905)

(787)

(711)

2-7/8 (73)

(345)

CW038

(1270)

(1168)

(889)

(813)

(1219)

(883)

(203)

(940) 35-5/8 (905)

(787)

(711)

2-7/8 (73)

(361)

CW041 50

(1270)

(1168)

(889)

(813)

(1219)

(883)

(203)

(940)

35-5/8 (905)

(787)

(711)

2-7/8 (73)

(388)

CW051 74

(1880)

(1778)

(889)

(813)

(1829)

(883)

(203)

(1549)

35-5/8 (905)

(787)

(1295)

2-7/8 (73)

(494)

CW060

(1880)

(1778)

(889)

(813)

(1829)

(883)

(203)

(1549) 35-5/8 (905)

(787)

(1295)

2-7/8 (73)

(524)

CW076 99

(2515)

(2413)

(889)

(813)

(2464)

(883)

15-1/4 (387)

78-3/4 (2000)

35-5/8 (905)

(787)

60-3/4 (1543)

8-7/8 (225)

(599)

CW084 99

(2515)

(2413)

(889)

(813)

(2464)

(883)

15-1/4 (387)

78-3/4 (2000)

35-5/8 (905)

(787)

60-3/4 (1543)

8-7/8 (225)

(644)

Source: DPN001659, Rev. 1

Projection of Display Bezel 3/4" (19mm)

J

Overall Dimension J

Overall Dimension

C

Unit Cabinet

AOverall Dimension AOverall DimensionUnit and PlenumD

C

Air Return

Opening

Air Return

Opening

B

B K

Air Return Opening

Air Return Opening

2" (50.8mm)2"

(50.8mm)

72" (1829mm)

Shaded areas indicate a recommended clearance of 36" (914mm) for component access and filter removal.

EUnit Base

F

Unit B ase

1" (25.4mm)

1" (25.4mm)

1" (25.4mm)

1" (25.4mm)

31" (787.4mm)

1" (25.4mm)1" (25.4mm)

1" (25.4mm)

1" (25.4mm)

1" (25.4mm)

1" (25.4mm)

Pre-Filter Plenum

Projection of Display Bezel 3/4" (19mm)

F Plenum

Overall

2" (50.8mm)

9" (228mm)

72" (1829mm)

MODELS WITH PRE-FILTERS

GG

F

9" (228mm)9" (228mm)

20" (508mm)

20" (508mm)

20" (508mm)

Reheat or Humidifier Piping Opening (Optional Steam & Hot Water Only)

Reheat or Humidifier Piping Opening (Optional Steam & Hot Water Only)

Air Discharge Opening

L

E E

H

M

Floor Level

Floor Level

Standard Piping & Electrical Opening

Standard Piping & Electrical Opening

18" (457mm)

Air Discharge Opening

3" (76.2mm)

3" (76.2mm)

UNIT DIMENSIONAL DATA

DPN001659

Rev. 1

Floor Cutout Dimensions for Units with Centrifugal Fans

Floor Cutout Dimensions for Units with EC Fans

Liebert® CW™ 10

Figure 5 Cabinet and floor planning dimensions, CW026, CW038 and CW041, downflow with EC fans, front discharge

Customer Piping and Wiring Connections Standard bottom connections require unit to be placed on a floor stand at least 9" (229mm) high.

If unit is to be placed directly on the floor, an additional SFA is required to relocate customer connections

Striated area indicates the recommended minimum clearance for component access

36" (914mm)

36" (914mm)

46" (1168mm) Opening

16" (408mm)

29-3/4" (754mm)

Air Discharge Opening

2" (51mm)

FRONT VIEW

48" (1219mm)

3" (76mm)

72" (1829mm)

50" (1270mm)

33" (838mm)

35" (889mm)31"

(787mm) Opening

Return Air Opening

3/4" (19mm) Bezel

TOP VIEW

310807 Pg. 1, Rev. 0

11 Liebert® CW™

Figure 6 Cabinet and floor planning dimensions, CW051, CW060, CW076 and CW084, downflow with EC fans, front discharge

Dimensions inches (mm)

Model A B C D E F G

CW051 72 (1829) 74 (1880) 70 (1778) 2.0 (51) 25.0 (636) 25.3 (643) 30.1 (764)

CW060 72 (1829) 74 (1880) 70 (1778) 2.0 (51) 25.0 (636) 25.3 (643) 30.1 (764)

CW076 97 (2464) 99 (2515) 95 (2413) 8.0 (203) 28.6 (727) 28.8 (730) 41.9 (1064)

CW084 97 (2464) 99 (2515) 95 (2413) 8.0 (203) 28.6 (727) 28.8 (730) 41.9 (1064)

A

B

D

G

Customer Piping and Wiring Connections Standard bottom connections require unit to be placed on a floor stand at least 9" (229mm) high.

If unit is to be placed directly on the floor, an additional SFA is required to relocate customer connections

Striated area indicates the recommended minimum clearance for component access

36" (914mm)

36" (914mm)

C Opening

16" (408mm)

16" (408mm)

FRONT VIEW

3-1/8" (79mm)

72" (1829mm)

33" (838mm)

35" (889mm)31"

(787mm) Opening

Return Air Opening

3/4" (19mm) Bezel

TOP VIEW

310807 Pg. 2, Rev. 0

F Air Discharge

Opening

E Air Discharge

Opening

Liebert® CW™ 12

Figure 7 Cabinet and floor planning dimensions, downflow models CW106 and CW114 with EC fans

Model

Dimensions, inches (mm) Net Weight lb (kg)A B C D E F G H I

CW106 122

(3099)

(2997)

(889)

(787)

(3048)

(838)

35-5/8 (905)

(762)

(864)

(810)

CW114 122

(3099)

(2997)

(889)

(787)

(3048)

(838)

35-5/8 (905)

(762)

(864)

(873)

Source: DPN001660, Rev. 0

UNIT DIMENSIONAL DATA

Projection Of Display Bezel 3/4" (19mm)

Projection Of Display Bezel 3/4" (19mm)

*Note: "Electrical Opening" is also used for drain connection of optional steam generating canister humidifier

AOverall Dimension

G Overall

Dimension

G

Overall

Dimension A

Overall DimensionUnit and Plenum

BAir Return Opening

D

Air Return

Opening

BAir Return Opening

H Air Return

Opening

2" (50.8mm)

2" (50.8mm)

2" (50.8mm)

76" (1930mm)

E Unit Base

1" (25.4mm)

1" (25.4mm)

1" (25.4mm)

1" (25.4mm)

1" (25.4mm)

FLOOR CUTOUT DIMENSIONS

Air Discharge Opening

Pre-Filter Plenum

Standard Piping Opening

77" (1955.8mm)

Shaded area indicates a recommended clearance of 36" (914mm) for component access and filter removal

6" (152.4mm)

16-1/4" (412.75mm)

26" (660.4mm)

24" (609.6mm)

10" (254mm)

28" (711mm)

20" (508mm)

* Electrical Opening

F Unit Base

DPN001660

Rev. 0

9" (228mm)

76" (1930mm)

C

Unit Cabinet

Plenum

Overall

MODELS WITH PRE-FILTERS

C

2" (51mm)

E

*This drawing pertains to CW106 & CW114 with forward-curve blowers only.

13 Liebert® CW™

Figure 8 Cabinet and floor planning dimensions for downflow models CW089, CW106 and CW114 with EC fans

Model Weight lb (kg)

CW089 1925 (873)

CW106 1785 (810)

CW114 1925 (873)

Source: DPN001659, Rev. 1

33" (838mm)

36" (914mm)

35" (889mm)

120" (3048mm)

DPN001614

Rev. 1

Notes: Filters are accessible from front of unit only.

Electrical connections can be made from the bottom of unit.

FRONT VIEW

TOP VIEW

Shaded area indicates the required minimum clearance below the unit to lower the fans. Fans may also remain in unit if desired.

Striated area indicates the recommended minimum clearance for component access.

1-1/2" (38mm)

3/4" (19mm) Bezels

118" (2997mm)

Opening

30-3/4" (781mm) Opening

24" (610mm)

122" (3099mm)

76" (1930mm)

Liebert® CW™ 14

Figure 9 Cabinet and floor planning dimensions, CW146 - CW181, downflow with EC fans, front discharge

A

1-1/2" (38mm)

1-1/2" (38mm)

3-1/8" (78mm)

94" (2386mm)

Total Height

76" (1930mm) Base Unit

18" (457mm) Filter Plenum

4-5/8" (117mm)

45" (1143mm)

37" (940mm)

1" (25mm)

Customer Piping and Wiring Connections Standard bottom connections require unit to be placed on a floor stand at least 9" (229mm) high.

If unit is to be placed on the floor, an opening is provided in front left end panel for piping and high voltage wire routings.

Customer must drill holes in right end panel to route low-voltage connections to standard location (must be routed separate from any high voltage wires).

Striated area indicates the recommended minimum clearance for component access

CW146 or

CW181

Base Unit

117-3/4" (2989mm) Opening

FRONT VIEW

REAR VIEW

45" (1143mm)

9-5/8" (244mm)

122" (3099mm)

120" (3048mm)

42" (1067mm) Opening

48" (1219mm)

3/4" (19mm) Bezel

TOP VIEW

LEFT END

Detail A

Piping Connections

310807 Pg. 4, Rev. 0

18-7/8" (478mm)

3-1/4" (83mm)

36-3/8" (924mm)

36-3/8" (924mm)

68-1/4" (1734mm)

68-1/4" (1734mm)

18-7/8" (478mm)

18-7/8" (478mm)

18-7/8" (478mm)

18-7/8" (478mm)

18-7/8" (478mm)

15" (381mm)

27-5/8" (700mm)

Air Discharge Opening

29-1/2" (749mm)

Air Discharge Opening

30-3/4" (779mm)

Air Discharge Opening

27-5/8" (700mm)

Air Discharge Opening

29-1/2" (749mm)

Air Discharge Opening

30-3/4" (779mm)

Air Discharge Opening

Filter Plenum (shipped separately

1-1/2" (38mm)

3-1/4" (83mm)

Filters are removed through the front of the plenum

15 Liebert® CW™

Figure 10 Cabinet and floor planning dimensions for downflow models CW146 and CW181 with EC fans

Model Weight lb (kg)

CW146 2520 (1143)

CW181 2520 (1143)

Source: DPN001707, Rev. 2

24" (610mm)

48" (1219mm)

3/4" (20mm)

BEZELS

122" (3099mm)

1" (25mm) typical

Liebert

CW146

and CW181

47" (1194mm)

45" (1143mm)

120" (3044mm) 1-1/2"

(38mm)

94" (2388mm)

Total Height

117-11/16" (2989mm) Opening

42" (1067mm) Opening

18" (457mm)

Filter Plenum

45" (1143mm) Plenum

76" (1930mm) Base Unit

Reference DPN001693 for the electrical and plumbing requirements.

Filters are removed through the front of the plenum.

Note: Typical CW166 and CW181 with EC fans unit orientation shown.

Shaded area indicates the required minimum clearance below the unit to lower the fans into the floo r. Fans may also remain in their shipped position.

Striated area indicates the recommended minimum clearance for component access.

Filter Plenum (shipped separately)

CW146 or CW181 base unit

DPN001707

Rev. 2

Liebert® CW™ 16

Figure 11 Dimensions and floor planning data downflow models CW300, CW400 with EC fans and filter plenums

DPN002432

Rev. 0

118" (2997mm) Opening

87" (2210mm) Opening

3/4" (19mm) Bezels

18" (457mm)

94" (2388mm)

76" 1930mm

1-1/2" (38mm)

1" (25mm)

1" (25mm)

91" (2311mm)

45" (1143mm)

92" (2337mm)

Filter Plenum (shipped separately)

122" (3099mm)

120" (3048mm)

36" (914mm)

48" (1219mm) 24" (610mm)

Two Cabinets

Striated area indicates the recommended minimum clearance for component access.

Shaded area indicates the minimum required area below the unit to be unobstructed for the skirted floorstand and fan service clearance.

Filters are removed by removing front panel of the plenum.

Refer to DPN001693 for the electrical and plumbing requirements.

For information on installing CW300 and CW400 units, refer to Appendix A - Installing Liebert CW300 and Liebert

CW400

17 Liebert® CW™

3.2 Dimensions—Upflow Models with EC Fans

Figure 12 Cabinet and floor planning dimensions, upflow models CW026-CW084 with EC fans, front air return

Model

Dimensions, in. (mm) Plenum Height, Supply Air Dimension A

in. (mm)B C

CW026, CW038, CW041 50 (1270) 48 (1219) Grille Discharge 22.75 (578)

CW051, CW060 74 (1880) 72 (1829) Top Discharge 22.75 (578), 30 (762), 36 (914)

CW076, CW084 99 (2515) 97 (2464)

Source: DPN002836, Pg. 1, Rev. 1

B Overall

1" (25mm)

1" (25mm)

35" (889mm) OverallProjection of

Display Bezel 3/4" (19mm)

Duct flanges on plenum top for supply air ducting when solid panel plenum is used

A Plenum

72" (1829mm)

Unit Return Air Grille

Supplied on Units with Front Return

Shaded areas indicate a recommended clearance of 36" (914mm) for component access and filter removal

EC Fan Terminal Box

C Base

33" (838mm)

Base 75-1/4"

(1911mm) 72"

(1829mm)

Left Side Detail View Without Plenum or EC Fans

FRONT AIR RETURN MODEL SHOWN

DPN002386

Pg. 1, Rev. 1

Liebert® CW™ 18

Figure 13 Cabinet and floor planning dimensions, upflow models CW026 - CW084 with EC fans, bottom air return

Chilled Water ModeL

Dimensions, in. (mm) Net Weight lb (kg)

A B VC D E F Unit Only Unit w/Plenum and Fans

CW026 44 (1118) 18 (457) 5 (127) 3 (76) 46 (1168) 48 (1219) 518 (235) 750 (340)

CW038 44 (1118) 18 (457) 5 (127) 3 (76) 46 (1168) 48 (1219) 542 (246) 774 (351)

CW041 44 (1118) 18 (457) 5 (127) 3 (76) 46 (1168) 48 (1219) 589 (267) 821 (372)

CW051 68 (1727) 20 (508) 4 (102) 3 (76) 70 (1778) 72 (1829) 755 (342) 1118 (507)

CW060 68 (1727) 20 (508) 4 (102) 3 (76) 70 (1778) 72 (1829) 827 (375) 1190 (540)

CW076 86 (2184) 18 (457) 5 (127) 6-1/2 (165) 95 (2413) 97 (2464) 1141 (518) 1566 (710)

CW084 86 (2184) 18 (457) 5 (127) 6-1/2 (165) 95 (2413) 97 (2464) 1239 (562) 1664 (755)

Source: DPN002386, Pg. 2, Rev. 1

E

C

A

D

Return Air Opening

1" (25mm)

1-1/8" (29mm)

Return Air Opening Floor Cutout Dimensions Bottom Air Return Model

5-1/2" (140mm)

F

33" (838mm)

22" (559mm)

REAR AIR RETURN MODEL

DPN002386

Pg. 2, Rev. 1

19 Liebert® CW™

Figure 14 Cabinet and floor planning dimensions, upflow models CW106, CW114 with EC fans, front return

122" (3099mm)

Overall

35" (889mm) Overall

1" (25mm)

1" (25mm)

120" (3048mm)

Base

33" (838mm)

Base

Front Air Return Model Shown

Note: Duct flanges on plenum top for supply air ducting when solid panel plenum is used.Projection of

Display Bezel 3/4" (19mm)

A Plenum

76" (1930mm)

Unit

Return Air Grille Supplied on

Units With Front Air Return

Shaded areas indicate a recommended clearance of 36" (914mm) for component access and filter removal

79-1/4" (2013mm)76"

(1930mm)

Left Side Detail View Without Plenum or EC Fans

EC Fan Terminal Box

DPN002387

Pg. 1, Rev. 1

Liebert® CW™ 20

Figure 15 Cabinet and floor planning dimensions, upflow models CW106, CW114 with EC fans, rear return

Model

Net Weight, lb. (kg)

Unit Only Unit with Plenum

And Fans

CW106 1240 (562) 1827 (829)

CW114 1375 (624) 1962 (890)

Source: DPN002387, Pg. 2, Rev. 1

Shaded area indicates a recommended clearance of 25" (635mm) for rear return filter removal on one end of the unit

22" (559mm)

2-1/4" (57mm)

117-1/2" (2984mm)

Return Air Filter Opening

24-1/4" (616mm)

DPN002387

Pg. 2, Rev. 1

21 Liebert® CW™

3.3 Dimensions—Downflow Models With Centrifugal Fans

Figure 16 Cabinet and floor planning dimensions, downflow models CW106 and CW114 with centrifugal fans

Model

Dimensions, inches (mm) Net Weight lb (kg)A B C D E F G H I

CW106

(3099)

(2997)

(889)

(787)

(3048)

(838) 35-5/8 (905)

(762)

(864)

(810)

CW114 122

(3099)

(2997)

(889)

(787)

(3048)

(838)

35-5/8 (905)

(762)

(864)

(873)

Source: DPN001660, Rev. 0

UNIT DIMENSIONAL DATA

Projection Of Display Bezel 3/4" (19mm)

Projection Of Display Bezel 3/4" (19mm)

*Note: "Electrical Opening" is also used for drain connection of optional steam generating canister humidifier

AOverall Dimension

G Overall

Dimension

G

Overall

Dimension A

Overall DimensionUnit and Plenum

BAir Return Opening

D

Air Return

Opening

BAir Return Opening

H Air Return

Opening

2" (50.8mm)

2" (50.8mm)

2" (50.8mm)

76" (1930mm)

E Unit Base

1" (25.4mm)

1" (25.4mm)

1" (25.4mm)

1" (25.4mm)

1" (25.4mm)

FLOOR CUTOUT DIMENSIONS

Air Discharge Opening

Pre-Filter Plenum

Standard Piping Opening

77" (1955.8mm)

Shaded area indicates a recommended clearance of 36" (914mm) for component access and filter removal

6" (152.4mm)

16-1/4" (412.75mm)

26" (660.4mm)

24" (609.6mm)

10" (254mm)

28" (711mm)

20" (508mm)

* Electrical Opening

F Unit Base

DPN001660

Rev. 0

9" (228mm)

76" (1930mm)

C

Unit Cabinet

Plenum

Overall

MODELS WITH PRE-FILTERS

C

2" (51mm)

E

*This drawing pertains to CW106 & CW114 with forward-curve blowers only.

Liebert® CW™ 22

3.4 Dimensions—Upflow Models With Centrifugal Fans

Figure 17 Cabinet and floor planning dimensions, upflow models CW026-CW084 with centrifugal fans

Model # of

Blowers

Dimensions, inches (mm) Net Weight lb (kg)A B C D E F G H J K L M

CW026 1 50

(1270)

(1219)

(1168)

(1118)

(76)

(127)

(457)

15-7/8 (403)

18-5/8 (473)

2-3/16 (55)

17-3/8

(454) _ 760

(345)

CW038 1 50

(1270)

(1219)

(1168)

(1118)

(76)

(127)

(457)

15-7/8 (403)

18-5/8 (473)

2-3/16 (55)

17-3/8

(454) _ 795

(361)

CW041 1 50

(1270)

(1219)

(1168)

(1118)

(76)

(127)

(457)

15-7/8 (403)

18-5/8 (473)

2-3/16 (55)

17-3/8

(454) _ 855

(388)

CW051 2 74

(1880)

(1829)

(1778)

(1727)

(76)

(102)

(508)

15-7/8 (403)

14-5/8 (371)

2-3/16 (55)

20-3/8 (517)

11-1/4 (286)

(494)

CW060 2 74

(1880)

(1829)

(1778)

(1727)

(76)

(102)

(508)

15-7/8 (403)

14-5/8 (371)

2-3/16 (55)

20-3/8 (517)

11-1/4 (286)

(524)

CW076 2 99

(2515)

(2464)

(2413)

(1727)

6-1/2 (165)

(127)

(457)

15-7/8 (403)

18-5/8 (473)

3-1/4 (82)

20-5/8 (524)

12-5/8 (321)

(599)

CW084 2 99

(2515)

(2464)

(2413)

(1727)

6-1/2 (165)

(127)

(457)

15-7/8 (403)

18-5/8 (473)

3-1/4 (82)

20-5/8 (524)

12-5/8 (321)

(644)

Source: DPN001661, Rev. 0

D

B

A

B C

G

F E

H

J J

J

H

K

M

L

K

72" (1829mm)

Projection of Display Bezel 3/4" (19mm)

Unit B ase

1" (25.4mm)

1" (25.4mm)

1" (25.4mm)

Overall Dimension Overall Dimension

35-5/8" (905mm)

35" (889mm)

33"

(838mm)

Unit Base Shaded area indicates a recommended clearance of 36" (914mm) for component access and filter removal. Refer to the user manual for recommended minumum clearance.

Air grille may be supplied on units with front or rear return air.

Duct Flanges on two blowers

Front of Unit

Duct Flanges on 1 blower

Front of Unit

1" (25.4mm) Flang for Plenum Connection

Note: Flanges provided on Blower(s) outlet for supply air ducting.

Air R eturn O pening

A return air grille may be ordered in place of the duct flange. See specification sheet for option supplied.

Air Return Opening

Air Return Opening

33"

(838mm)

1-1/8" (28.6mm)

5-1/2" (139.7mm)

22" (559mm)

Floor Level

Unit Dimensional Data

Floor Cutout Dimensions Models with Bottom Return

Models with Rear Return

DPN001661

Rev. 1

23 Liebert® CW™

Figure 18 Cabinet and floor planning dimensions upflow models, CW106 and CW114 with centrifugal fans

Model Blower Supply Motor hp

Dimensions, inches (mm

A B C D E F

CW106

CW114

15 x 15 Top Front 10-15 27-1/2 (699) 3-1/2 (89) 18-11/16 (475) 16-3/16 (411) 10 (254) 4-1/2 (114)

Top Rear 10-15 27-1/2 (699) 12-5/16 (313) 18-11/16 (475) 16-3/16 (411) 10 (254) 4-1/2 (114)

15 x 11 Top Front

10-15 30 (762) 3-1/2 (89) 14-3/4 (375) 16-3/16 (411) 10 (254) 4-1/2 (114)

20 30 (762) 3-1/2 (89) 14-3/4 (375) 16-3/16 (411) 10 (254) 4-1/2 (114)

Top Rear 10-20 30 (762) 12-5/16 (313) 14-3/4 (375) 16-3/16 (411) 10 (254) 4-1/2 (114)

Unit Dimensions

Air grille supplied on units with front return air only

Shaded areas indicate a recommended clearance of 36" (914mm) for component access and filter removal.

Duct Connections Models With Rear Return

Projection of Display Bezel 3/4" (19mm)

24-1/4" (616mm)

117-1/2" (2985mm)

1" (25mm) flange for decorative plenum alignment Flanges provided on blower outlets for supply air ducting.

2" (51mm)

Shaded area indicates a recommended clearance of 25" (635mm) for rear return filter removal on one end of the unit.

33" Base (838mm)

2" (51mm)

122" Overall (3099mm)

122" Overall (3099mm)

118" (2997mm)

Plenum Flange

76" (1930mm)

Air Return Opening

Filter Access (Both Ends)

22" (559mm)

2-1/4" (57mm) DPN001662

Rev. 2

32" (813mm) Plenum Flange

35" Overall (889mm)

120" Base (3048mm)

1" (25mm)

4" (102mm)

A B

D

CC C

F

E E

Duct Flanges on 3 Blowers

35" (889mm)

Ref.

76" (1930mm) Ref.

Front of Unit Blower Duct Flange Location

Top of Unit Blower Deck

Front or Rear Air Supply

Liebert® CW™ 24

3.5 Floor Stand Dimensions

Figure 19 Floor stand and floor planning dimensions, downflow models CW026 - CW041 with EC fans

Dimension A* Height, in (mm)

24 (610)

30 (762)

36 (914)

42 (1067)

48 (1219)

Source: DPN00209, Rev. 0

DPN002029

REV 0

NOTES:

1) This floor stand should be used when EC fans are will be lowered into a raised floor. The standard Liebert CW floor stand can be used if the fans will remain in their original, raised position.

2) All paneled sides of unit overhang the floor stand by 1" (25mm).

3) The floor stand used with EC units is not symmetrical, and its orientation to the Liebert CW is critical for lowering the EC fans. Unless the floor stand is installed in the correct position, the blowers will not lower into the floor stand.

4) The jack and jack support are shipped loose and are intended to be placed into position under each fan and utilized to lower or raise that fan as needed.

* Leveling feet are provided with ± 1-1/2" (38mm) adjustment from nominal height “A.”

See Note 4

46-1/2" (1181mm) Support Feet Centers

3/4" (19mm)

3/4" (19mm)

3/4" (19mm) typ

3/4" (19mm)

1" (25mm)

31-1/2" (800mm)

14" (356mm)

48" (1219mm)

Piping access area

49-1/2" (1257mm)

7/8" (23mm)

33" (838mm)

34-1/2" (876mm) Overall Depth

3" (76mm) typ A*

25 Liebert® CW™

Figure 20 Floor stand and floor planning dimensions, downflow models CW076 and CW084 with EC fans

Dimension A* Height, in (mm)

24 (610)

30 (762)

36 (914)

42 (1067)

48 (1219)

Source: DPN002027, Rev. 0

DPN002027

Rev. 0

NOTE:

1) This floor stand should be used when EC fans are intended to be lowered under a raised floor. The standard Liebert CW floor stand can be used “if” the fans are to remain in their original raised position.

2) All paneled sides of unit overhang floorstand 1” (25mm).

3) The floor stand used with EC units is not symmetrical and its orientation to the Liebert CW is critical for lowering the EC fans. Unless the floor stand is installed in the correct position, the blowers will not lower into the floor stand.

4) Jack and jack support are shipped loose and are intended to be placed into position under each fan and utilized to lower or raise that fan as needed.

*Leveling feet are provided with ± 1-1/2” (38mm) adjustment from nominal height “A”.

33" (838mm)

35" (889mm) Overall Depth

A*

1" (25mm) typ

3/4" (19mm)

3/4" (19mm)

3/4" (19mm)

1" (25mm)

98-1/2" (2502mm)

3" (76mm) typ

7/8" (23mm) typ

97" (2464mm)

32" (813mm)

Center Feet

Piping access area

25" (635mm)

31-1/2" (800mm)

47-3/4" (1213mm)

95-1/2" (2426mm) Support Feet Centers

See Note 4

Liebert® CW™ 26

Figure 21 Floor stand and floor planning dimensions, downflow models CW089, CW106 and CW114 with EC fans

NOTES

1. This floor stand should be used when EC fans are intended to be lowered into the floor stand. The standard Liebert CW floor stand can be used “if” the fans are to remain in their original raised position.

2. All paneled sides of unit overhang floorstand 1" (25mm).

3. The floor stand used with EC units is not symmetrical, and its orientation to the Liebert CW is critical for lowering the EC fans. Unless the floor stand is installed in the correct position, the blowers will not lower into the floor stand.

4. Jack and jack support are shipped loose and are intended to be placed into position under each fan and utilized to lower or raise that fan as needed.

* Leveling feet are provided with ±1-1/2" (38mm) adjustment from nominal height “A.”

See Note 4

Piping access area

20-1/4" (514mm)1"

(25mm)

31-1/2" (800mm)

3/4" (19mm)

32" (813mm) Center Feet

3/4" (19mm)

118-1/2" (3010mm) Support Feet Centers

59-1/4" (1505mm)

120" (3048mm)3/4" (19mm)

Typ

1" (25mm)

TYP

33" (838mm)

35" (889mm) Overall Depth

121-1/2" (3086mm) Overall Width

A*

7/8" (22mm)

Typ 3" (76mm) TYP

DPN001629

Rev. 4

Height, in. (mm) A*

24 (610) 30 (762) 36 (914)

42 (1067) 48 (1219)

27 Liebert® CW™

Figure 22 Floor stand and floor planning dimensions, downflow models CW146 and CW181 with EC fans

NOTE:

1. This floor stand should be used when EC fans are intended to be lowered into the floor stand. The standard Liebert CW floor stand can be used if the fans are to remain in their original, raised position.

2. All paneled sides of unit overhang floor stand 1" (25mm).

3. The floor stand used with EC units is not symmetrical, and its orientation to the

Liebert CW is critical for lowering the EC fans. Unless the floor stand is installed in the correct position, the blowers will not lower into the floor stand.

4. The jack and jack support are shipped loose and are intended to be placed into position under each fan and used to lower or raise one fan at a time as needed.

* Leveling feet are provided with ±1-1/2" (38mm) adjustment from nominal height†“A.”

20-1/4" (514mm)

1" (25mm)

3" (76mm)

7/8" (23mm)

TYP

A*

Height in (mm) A*

24 (610) 30 (762) 36 (914)

42 (1067) 48 (1219)

See Note 4120" (3048mm)

3/4" (19mm)

TYP

121-1/2" (3086mm) Overall Depth 47"

(1194mm) Overall Depth

45" (1143mm)

1" (25mm)

TYP

43-1/2" (1105mm)

3/4" (19mm)

Support Feet Centers

59-1/4" (1505mm)

Piping access area

118-1/2" (3010mm)

3/4" (19mm)

44" (1118mm)

CENTER FEET

DPN001696

Rev. 3

Liebert® CW™ 28

Figure 23 Floor stand and floor planning dimensions—Downflow CW300 AND CW400 with EC fans

A

Detail A

NOTE:

1. This floor stand should be used when EC fans are permitted to be lowered into the floor stand.

2. All paneled sides of unit overhang floor stand 1" (25mm).

3. The floor stand used with EC units is not symmetrical and its orientation to the Liebert CW is critical for lowering the EC fans. Unless the floorstand is installed in the correct position, the blowers will not lower into the floorstand.

4. Jack and jack support are shipped loose and are intended to be placed into position under each fan and utilized to lower or raise that fan as needed.

5. Hatched area for piping access.

DPN002433

Rev. 0

See Note 4

See Note 5

43" (1092mm)

3/4" (19mm) 118-1/2" (3010mm)

59-1/4" (1505mm) 3/4"

(19mm)

42-1/4" (1073mm) Center of

Feet

42-1/4" (1073mm) Center of

Feet

4" (102mm)

4" (102mm)

20-1/4" (514mm)

1" (25mm)

1" (25mm)

1" (25mm)

1" (25mm)

43" (1092mm)

46" (1169mm)

92" (2338mm) Overall Depth

90" (2287mm)

A *

120" (3048mm)

122" (3099mm) Overall Width

3" (76mm) typ.

7/8"

(23mm)

* Leveling feet are provided with ±1-1/2" (38mm) adjustment from nominal height 36" (914mm).

Height, in. (mm) A*

24 (610) 30 (762) 36 (914)

42 (1067) 48 (1219)

29 Liebert® CW™

Figure 24 Floor stand dimensions, optional steam, hot water reheat and humidifier piping entrances for downflow models CW026 - CW84 with centrifugal fans

Model

Dimensions, inches (mm) Height in. (mm)

Overall Unit Width A B C D E H* Nominal J

CW026, CW038, CW041 50 (1270) 48 (1219) 0 0 36 (914) 8 (203) 9 (229) 6-1/2 (165)

CW051, CW060 74 (1880) 72 (1829) 0 0 60 (1524) 8 (203) 12 (305) 9 (229)

CW076, CW084 99

(2515)

(2464)

48-1/2 (1232)

48-1/2 (1232)

77-3/4 (1975)

15-1/4 (362)

15 (381) 12 (305)

18 (458) 15 (381)

Source: DPN001676, Rev. 0 21 (553) 18 (458)

24 (610) 21 (553)

DPN001676

Rev. 0

B

A C

E

D

J

* Leveling feet are provided with ± 1-1/2" (38mm) adjustment from nominal height H.

1" (25.4mm)

8" (203mm)

(76.2mm)

Standard piping and electrical entrance location

Optional Steam/Hot Water Reheat or Humidifier Piping Entrance Location

Optional Turning Vane Field-Installed in Fan Discharge Opening For Rear or Front Air Discharge

62" (1574.8mm)

A + 2" (50.8mm) = Overall Width of Unit Air Discharge

Opening

1" (25.4mm)

2" (50.8mm)

16-1/4" (413mm)

Leg support supplied on 18, 21 & 24" high models

Length of Vane = D - 1/8" (3mm)

H ±1-1/2" (38mm) *

33" (838mm)

56-3/4" (1441.5mm)

CROSS-BRACING LOCATION FOR 72" FRAMES ONLY

Liebert® CW™ 30

Figure 25 Floor stand dimensions for downflow models CW106 and CW114 with centrifugal fans

Model

Dimensions, inches (mm) Height, in. (mm)

Overall Unit Width A B C D E F G K

H* Nominal J

CW106

CW114

(3099)

(3048)

(1524)

(1524)

(838)

100-3/4 (2559)

16-1/4 (413)

8-1/4 (210)

(279)

9 (229) 6-1/2 (165)

12 (305) 9 (229)

Source: DPN001677, Rev.