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Liebert® CW™ Thermal Management System Installer/User Guide 340 kW to 440 kW Capacity, 60 Hz...
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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.
8.3 Installing Condensate-discharge Tubing on Units with a Condensate Pump 8.4 Flushing the Entire Water System before Start-up Appendices Appendix A: Technical Support and Contacts Appendix B: Optional Configuration for Liebert® CW440 Seismic Application Appendix C: Submittal Drawings Vertiv | Liebert® CW™ Installer/User Guide |...
1 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.
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The shut-off valves must be sized to close-off against the maximum coolant-fluid system pressure in case of a catastrophic fluid leak. Vertiv | Liebert® CW™ Installer/User Guide...
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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.
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2 NOMENCLATURE AND COMPONENTS This section describes the model-number configuration for Liebert® CW units and components. 2.1 Liebert CW Model-number Nomenclature Table 2.2 below describes each digit of the model number. Table 2.1 CW Model Number Table 2.2 CW Model-number Digit Definitions Digit Description Digits 1 and 2 = Unit Family...
The unit component locations are described in the submittal documents included in the Submittal Drawings on page 37. The following table lists the relevant documents by number and title. Table 2.3 Component-location Drawings Document Number Title DPN003577 Component Location, CW340 DPN003574 Component Location, CW440 Vertiv | Liebert® CW™ Installer/User Guide...
3 PLANNING GUIDELINES 3.1 Capacity and Physical Data Table 3.1 Performance data, Standard Chilled-water Unit with EC fans Model No. NET CAPACITY DATA kBTU/H (kW) BASED ON 45°F (7.2°C) ENTERING WATER, 10°F (5.5°C) WATER RISE 75°F DB, 61°F WB (23.9°C DB, 16.1°C WB) 45% RH Total Capacity, kBTUH (kW) 1410 (431) 1758 (515)
Fan and Filter box 190 x 70 x 87 (4826 x 1778 x 2210) 3896 (1767) *Each system ships on two skids. Skid 1 is the coil section. Skid 2 is the fan/filter-box sections. Vertiv | Liebert® CW™ Installer/User Guide...
3.3 Planning Dimensions The unit, floor stand, and plenum dimensions are described in the submittal documents included in the Submittal Drawings on page 37. The following table lists the relevant documents by number and title. Table 3.5 Dimension Planning Drawings Document Number Title Downflow Units with EC Fans DPN003561...
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Table 3.5 Dimension Planning Drawings (continued) Document Number Title Plenums for Units with EC Fans DPN003964 Optional rear-ducted EC fan section for CW340 DPN003676 Optional rear-ducted EC fan section for CW440 Vertiv | Liebert® CW™ Installer/User Guide...
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. 4.1 Site Preparation Prepare the site for installation prior to arrival and unloading of the unit.
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Figure 4.1 Unit and high-point marking on concrete slab Item Description Concrete slab High point Vertiv | Liebert® CW™ Installer/User Guide...
• 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. • For initial access use a 7/32-in. Allen wrench for panel removal.
Lift points are rated for lifting this section only. Do not lift assembled sections from these lift points. Vertiv does not provide rigging. Refer to the following for recommended rigging process. • Use proper rigging equipment to make sure attachment and lifting at the designated lift points is in the vertical direction.
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Figure 5.2 Lift points on the coil section Item Description Coil section 5 Equipment Inspection and Handling...
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Figure 5.3 Lift points on filter-plenum, plenum extension, and fan sections Item Description Plenum extension Filter plenum Fan section Vertiv | Liebert® CW™ Installer/User Guide...
6 INSTALLING THE UNIT Referring to Figure 6.1 on the next page, perform the following steps: Referencing the highest point, set the fan section on marked location and level it with steel shims. 2. Install additional steel shims, spaced not more than 6 ft apart. 3.
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Figure 6.1 Placing the unit and upper sections Item Description Connection locations Bolt, 1/2-13 x 7.5 in. Flat washer, 1/2-in. Lock nut, 1/2-13 thread Steel shims under all lifting points Established high point Concrete slab or Housekeeping pad Install factory-supplied foam gasketing Vertiv | Liebert® CW™ Installer/User Guide...
Figure 6.2 Placing the (optional) plenum Item Description Connection locations Bolt, 1/2-13 x 7.5 in. Flat washer, 1/2-in. Lock nut, 1/2-13 thread Install factory-supplied foam gasketing Optional, 18-in. decorative plenum 6.1 Connecting Unit Sections (Recommended) Secure the coil-section frame to the fan-base frame and the filter-section frame to the coil-section frame. 8 locations on the CW340 or 10 locations on the CW440 are provided to connect the 3 unit sections.
2. Uncoil and route the tube into the filter plenum through the hole labeled "Filter Clog Sample Tube" on the filter slide rail, see Figure 6.3 below. Figure 6.3 Pressure tube routed from filter-clog switch into the filter plenum Item Description Filter-clog-sample-tube hole Pressure pick-up tube Vertiv | Liebert® CW™ Installer/User Guide...
7 ELECTRICAL CONNECTIONS IN THE UNIT 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.
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Figure 6.4 High- and Low-voltage connections in the fan section Item Description RS-485 connection High-voltage connections. CW440 connections shown. CW340 has 3 quick-connect sockets. Vertiv | Liebert® CW™ Installer/User Guide...
7.3 Condensate-pump High- and Low-voltage Connections The coil and fan sections are factory-wired with a quick-connect connector for the condensate pump. After the coil section is lowered and secured to the fan section, connect the pump harness from the fan section to the plug provided in the under-side of the coil section, see Figure 6.5 below.
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8 PIPING REQUIREMENTS 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.
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Figure 7.1 Drain-trap locations Figure 7.2 Typical Drain-trap construction Item Description Condensate-discharge pipe from unit Coupling (threaded socket) Nipple Cross Threaded plugs (for clean-out) Bend Vacuum breaker Sloped drain pipe Vertiv | Liebert® CW™ Installer/User Guide...
Figure 7.3 Negative-pressure drain-trap construction Item Description Condensate drain pan Condensate-discharge pipe from unit/drain pan One-half of dimension "H" Total Static Pressure in inches of water column plus a minimum of one inch. 8.3 Installing Condensate-discharge Tubing on Units with a Condensate Pump On units with a condensate pump, the factory-mounted pump requires field assembly to the two condensate connections on the coil.
Do not flush debris from the water lines into the coils. • Thoroughly flush the drain system by running clean water through all drain pans and drain lines, then visually inspect drain pans to verify that all debris is removed. 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...
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Appendix B: Optional Configuration for Liebert® CW440 Seismic Application Electrical wiring, conduit, and/or other connections to the equipment is the responsibility of others. Data and recommendations are supplied in the Submittal Drawings on page 37,. The following table lists the relevant documents by number and title. Table B.1 Seismic-application Drawings Document Number Title...
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Appendix C: Submittal Drawings The submittal drawings are in the order of document part number (DPN). Table C.1 below, groups the drawings by topic/application. Table C.1 Submittal-drawings Contents Document Number Title Component Location DPN003577 Component Location, CW340 DPN003574 Component Location, CW440 Planning Dimensions - Downflow Units with EC Fans DPN003561 Cabinet Dimensional Data, CW340 with filter plenum...
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Piping Connections - Downflow Units with EC Fans DPN003596 Piping Schematic, Downflow, CW340 and CW440 Electrical Connections - Downflow Units DPN003601 Electrical Field Connections, Downflow, CW340 and CW440 Seismic Anchorage Data DPN003636 Seismic Data for CW440D Vertiv | Liebert® CW™ Installer/User Guide...
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LIEBERT CW CABINET DIMENSIONAL DATA CW340 & FILTER PLENUM (plenum shipped separately) 122" 3099mm OPENING Note: 1. Filters are accessible through front and top of unit only. 2. Electrical connections can be made from top 56" 60" 1422mm 1524mm or bottom of unit. OPENING TOP VIEW 1 9/16"...
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LIEBERT CW CABINET DIMENSIONAL DATA CW440 & FILTER PLENUM (plenum shipped separately) 163" 4140mm OPENING Note: 1. Filters are accessible through front and top of unit only. 56" 60" 1422mm 1524mm 2. Electrical connections 58" OPENING can be made from top 1473mm or bottom of unit.
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LIEBERT CW FAN SECTION DIMENSIONAL DATA CW440 MODEL Piping access area (See Note 5) TOP VIEW 60" 1524mm 180" 4572mm OVERALL 43" 1092mm 38 1/4" 38 1/4" 38 1/4" 38 1/4" 10" RIGHT SIDE 972mm 972mm 972mm 972mm 254mm PANELS REMOVED FOR CLARITY FRONT VIEW PANELS REMOVED FOR CLARITY Attachment Attachment...
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LIEBERT CW COMPONENT LOCATION DIAGRAM CW440 1. iCom Control Display 2. Electric Box 3. Filters 4. Coil 5. Disconnect 6. EC Fans Note: 1. Unit with Plenum (shipped separately) attached shown in order to provide view of filters. 2. Some panels removed from views for clarity. DPN003574 REV : 2 Page :1 /1...
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LIEBERT CW COMPONENT LOCATION DIAGRAM CW340 1. iCom Control Display 2. Electric Box 3. Filters 4. Coil 5. Disconnect 6. EC Fans Note: 1. Unit with Plenum (shipped separately) attached shown in order to provide view of filters. 2. Some panels removed from views for clarity. DPN003577 REV : 2 Page :1 /1...
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LIEBERT CW PRIMARY CONNECTION LOCATIONS CW340 & CW440 SECTION A-A SECTION B-B Top Piping Option Connection Locations Bottom Piping Option Connection Locations CWS1 CWR1 CWS2 SECTION C-C Notes: CWR2 1 All views shown in standard configuration. CW340 & CW440 can be ordered with piping and electrical connection locations located on left end of unit with fan sections adjusted as required.
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LIEBERT CW ELECTRICAL FIELD CONNECTION DEFINITIONS AND LOCATIONS CW340 & CW440 DOWNFLOW MODELS STANDARD ELECTRICAL CONNECTIONS Primary high voltage entrance - 2.50” (64mm); 1.75” (44mm) @ EP Box; 1.375” (35mm) diameter concentric knockouts located in bottom of box Primary low voltage entrance - Quantity (3) 1.375” (35mm) diameter knockouts located in bottom of box Three phase electrical service - Terminals are on top of disconnect switch.
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LIEBERT CW ELECTRICAL FIELD CONNECTION DEFINITIONS AND LOCATIONS CW340 & CW440 DOWNFLOW MODELS Main Fan Condensate Pump fuses fuses RS485 Interface Board Intellislots Control fuses Large iCOM™ Board High Temp Stat 10 Disconnect Filter Clog Switch Air Safety Switch Terminals for T6 Transformer Field Low Voltage T1 Transformer...
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LIEBERT CW ELECTRICAL FIELD CONNECTION DEFINITIONS AND LOCATIONS CW340 & CW440 DOWNFLOW MODELS Main Fan Condensate Pump fuses fuses RS485 Interface Board Intellislots Control fuses Large iCOM™ Board High Temp Stat Filter Clog Switch Air Safety Switch Terminals for T6 Transformer Field Low Voltage T1 Transformer Smoke Detector...
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LIEBERT CW ELECTRICAL FIELD CONNECTION DEFINITIONS AND LOCATIONS CW340 & CW440 DOWNFLOW MODELS Field Fan Section Connections Fan Section RS485 Connection Fan Section High Voltage Connections (CW440 shown. CW340 will have 3 quick connect sockets) DPN003601 REV : 3 Page :4 /4 REV DATE : 9/17...
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Values presented in this document are provided for unit anchorage sizing and do not imply compliance to IBC, ASCE, or OSHPD seismic requirements. The Liebert CW440 has not been tested and certified. The anchorage loads are provided as guidelines for the sizing of anchors for the attachment of the unit to the building structure or housekeeping pad.
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SECTION A-A 1. Anchor Bolt sized per Hilti Kwik Bolt TZ Carbon and Stainless in Concrete, ICC ESR-1917. Alternates are subject to review by Vertiv or Engineer of Record. 2. Specified by Engineer of Record. 3. Operating mass includes the operating refrigerant, water volume, floor stand and plenum.
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LIEBERT CW SEISMIC DATA ANCHORAGE FOR CW440D SECTION WELDING DIMENSIONS FRAME TUBE (OUTSIDE FACE) GASKET WELD Welded Connection (Typ.) TYPICAL 3/16 (5mm) Section B-B Filter to Coil Welds Section A-A Coil to Fan Welds Notes: 1. Gasket material is added to the inner most top mating edge of each section prior to stacking. 2.
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LIEBERT CW OPTIONAL DUCTED REAR CONNECTION CW440 MODEL Rear View 1 7/8" 176 1/4" 48mm 4477mm Top View 2 9/16" 65mm Piping Section 27 5/16" 694mm 1 3/4" Rear View 44mm Fans Removed For Clarity Notes: 1. Because Piping Section may appear at either end of unit dimensions shown may be reversed depending on configuration ordered.
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LIEBERT CW FAN SECTION DIMENSIONAL DATA 3 FAN CW340 MODEL Piping access area (See Note 5) TOP VIEW 60" 1524mm 138 11/16" 3523mm OVERALL 43" 1092mm 38 1/4" 38 1/4" 10" 38 1/4" RIGHT SIDE 972mm 972mm 972mm 254mm PANELS REMOVED FOR CLARITY FRONT VIEW PANELS REMOVED FOR CLARITY Attachment Attachment...
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