Vertiv Liebert DA250 Installer/User Manual
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Vertiv Liebert DA250 Installer/User Manual

Dse thermal management system
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Liebert®
DSE Thermal Management System
Installer/User Guide
Downflow, 250 kW (71 ton) and 265 kW (75 ton) Capacity, 50 and 60 Hz

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Summary of Contents for Vertiv Liebert DA250

  • Page 1 Liebert® DSE Thermal Management System Installer/User Guide Downflow, 250 kW (71 ton) and 265 kW (75 ton) Capacity, 50 and 60 Hz...
  • Page 2 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.

  • Page 3: Table Of Contents

    7.3 Piping Installation Checks 7.4 Other Installation Checks 8 Initial Startup Checks and Commissioning Procedure for Warranty Inspection 9 Maintenance 9.1 Filters 9.1.1 Replacing the Filters 9.2 Fan Maintenance 9.2.1 Fan Assembly Troubleshooting 9.2.2 Fan Impellers Vertiv | Liebert® DSE Thermal Management System Installer/User Guide |...
  • Page 4 9.5.8 Replacing a Compressor with Mechanical Failure 9.6 Evaporator Coil 9.7 Air Cooled Condenser Maintenance 10 Preventive Maintenance Checklist Appendices Appendix A: Technical Support and Contacts Appendix B: Submittal Drawings Vertiv | Liebert® DSE Thermal Management System Installer/User Guide |...

  • Page 5: Important Safety Instructions

    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® DSE. 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.
  • Page 6 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. Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...
  • Page 7 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.
  • Page 8 5°F (–15°C) evaporator temperature and at less than 52 psig (358 kPa). Operation for extended periods at less than 52 psig (358 kPa) can cause premature compressor failure. Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...
  • Page 9 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 startup 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.
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  • Page 11: Nomenclature And Components

    2 NOMENCLATURE AND COMPONENTS This section describes the model number for Liebert® DSE units and components. 2.1 Liebert® DSE Model Number Nomenclature Table 2.2 below describes each digit of the model number. Table 2.1 DSE Model Number Model Number Digits 1 to 10 Model Details Model Number Digits 11 to 14 Table 2.2 DSE Model Number Digit Definitions...
  • Page 12 A = No SFAs (Any alpha letter except S) S = Special feature authorization (SFA). A non-standard configuration or feature of the product that requires the local factory representative to work directly with the factory. Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...

  • Page 13: Component Location

    2.2 Component Location The unit component locations are described in the submittal documents included in the Submittal Drawings. The following table lists the relevant documents by number and title. Table 2.3 Component Location Drawings Document Number Title DPN004368 Liebert® DSE Cabinet Dimension Data DA250, DA265 with Horizontal Discharge 2 Nomenclature and Components...
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  • Page 15: Pre-Installation Preparation And Guidelines

    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. 3.1 Planning Dimensions The unit, floor stand, and plenum dimensions are described in the submittal documents included in the Submittal Drawings.

  • Page 16: Connections And System Setup

    Connections and System Setup above, for details. • If seismic requirements apply, consult your Vertiv representative for information about a seismic rated floor stand. NOTE: Seal openings around electrical connection to prevent air leakage. Failure to do so could reduce the unit’s cooling performance.
  • Page 17 Table 3.3 Liebert® MCV Condenser Unit Domestic and Export Shipping Dimensions and Weights Domestic Packaging Export Packaging Dry Weight, lb  Max. Operation Shipping Shipping Model # Ship Weight, lb  Ship Weight, lb  (kg) Weight, lb (kg) dimensions, ft  dimensions, ft  (kg) (kg) (mm) (mm)
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  • Page 19: Equipment Inspection And Handling

    • 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. Equipment Recommended for Handling the Unit: •...

  • Page 20: Handling The Unit While Packaged

    20 ft. (5 m) or farther from the unit. 4.3 Unpacking the Unit Remove exterior package material from around, and on top of the unit. Figure 4.1 Unpacking the Unit Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...

  • Page 21: Removing The Unit From The Skid

    4.4 Removing the Unit from the Skid NOTE: If you do not follow these steps, damage could occur to the panels and base of the unit. Referring to Figure 4.2 below, use a 9/16 in. socket driver to remove the lag screws (24 total) from the four corner brackets to detach the unit from the skid.
  • Page 22 3. Using the instructions included in the kit, install the rigging hardware for lifting the unit from the skid. Figure 4.3 below, shows an example of one of the eye nuts installed. Figure 4.3 Locate the Rigging Fastener Hardware Kit Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...
  • Page 23 4. Attach the recommended rigging equipment to the eye nuts installed in Step 3. 5. Using the rigging equipment, lift the unit from the skid, and remove the skid from under the unit, see Figure 4.4 below. Figure 4.4 Lifting Unit and Removing Skid 4 Equipment Inspection and Handling...

  • Page 24: Unpacking And Handling The Fan Section

    4.5 Unpacking and Handling the Fan Section Refer to drawing number 336511 "Instructions Handling/Installation of Fan Section CW/DSE" that is included in the fan plenum packaging for instructions on uncrating and handling the fan section. Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...

  • Page 25: Electrical Field Connections

    5 ELECTRICAL FIELD CONNECTIONS 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.
  • Page 26 Liebert® Heat Rejection Skid CANbus and Interlock Connections Liebert® MCV and Liebert® MCV DPN003886 EconoPhase and Base Assembly Unit to Unit Networking Liebert® iCOM™ Unit to Unit Network Connections (Liebert® CW, Liebert® CWA, Liebert® DS, Liebert® DSE, DPN004351 Liebert® PDX, Liebert® PCW Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...

  • Page 27: Piping And Refrigerant Requirements

    6 PIPING AND REFRIGERANT REQUIREMENTS All fluid and refrigeration connections to the unit 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.

  • Page 28: Drain Fluid Piping

    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. Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...
  • Page 29 Figure 6.1 Correct and Incorrect Gravity Drains for Downflow Units Table 6.3 Gravity Fed Drain Line Figure Descriptions Item Description Correct drain installation. Incorrect drain installation. DSE unit. Internal drain. External drain. Continuous downward slope External trap. Do not trap externally.. External trap, although unintentional.

  • Page 30: Condensate Pump Drain Line Requirements

    Table 6.4 System Refrigerant Pressures Maximum Design Operating Pressure (High Side) 530 psig 3655 kPa Noted on the unit serial tag High Pressure Cut Out Safety Switch 580 psig 4000 kPa Nominal Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...

  • Page 31: Refrigerant Piping Guidelines For Air Cooled Systems

    NOTICE Risk of oil contamination with water. Can cause equipment damage. Liebert®  DSE systems require the use of POE (polyolester) oil. POE oil absorbs water at a much faster rate when exposed to air than previously used oils. Because water is the enemy of a reliable refrigeration system, extreme care must be used when opening systems during installation or service.

  • Page 32: Piping Layout And Condenser Positioning

    NOTE: See the piping schematics for your system in Submittal Drawings. For installations using pre-fabricated heat rejection skids, included piping must be factored into total equivalent length calculation. Please consult factory for details. Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...

  • Page 33: Refrigerant Charge Requirements For Air Cooled Systems

    35 (15.9) *System Charge: Indoor unit, MCV440 heat rejection skid with EconoPhase (PRE) and refrigerant lines. For system charges over 200 lb. (90.7kg), consult your Vertiv representative. See Table 9.3 on page 47 for the recommended oil for the system. The values in this table and in the following tables are needed in order to calculate the full system charge: •...

  • Page 34: Additional Oil Requirements For Scroll And Digital Scroll Compressors

    • Do not mix oils of different viscosities. • Consult your Vertiv sales representative, visit https://www.Vertiv.com/en-us/support/, or contact the compressor manufacturer if questions arise. See 6.2.5 above, for the amount required for various system charge levels. In addition to oil added based on system charge, additional oil is required for discharge line field installed traps. Standard formed tube traps are required, see Figure 6.2 below, and Table 6.11 on page 32, because straight tubes and fittings used...
  • Page 35 200 (90.7) 138 (4080) System Charge: indoor unit, MCV heat rejection skid, refrigerant lines. Calculated per circuit. For system charges over 200 lb. (90.7 kg), consult your Vertiv representative. Compressor Oil Types for R-410A Refrigerant, for the recommended oil for the system.

  • Page 36: Evacuation, Leak Testing, And Charging Air Cooled Systems

    When the three checks are complete, remove the jumper hose from the service valve fitting and the condenser, and proceed to Charging DA250 Air Cooled Systems (Liebert® MCV440 with Receivers) on the facing page. Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...
  • Page 37 Charging DA250 Air Cooled Systems (Liebert® MCV440 with Receivers) NOTICE Risk of improper refrigerant charging. Can cause equipment damage. R-410A is a blended refrigerant and must be introduced and charged from the cylinder only as a liquid. When adding liquid refrigerant to an operating system, it may be necessary to add the refrigerant through the compressor suction service valve.
  • Page 38 65°F and 75°F (18°C and 24°C): • 40°F (4.5°C) and lower—Charge to the bottom of the top sight glass. • 40°F (4.5°C) and higher—Top sight glass is 1/4 full. Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...
  • Page 39 Charging DA265 Air Cooled Systems (Liebert® DA265 without Receivers) NOTICE Risk of improper refrigerant charging. Can cause equipment damage. R-410A is a blended refrigerant and must be introduced and charged from the cylinder only as a liquid. When adding liquid refrigerant to an operating system, it may be necessary to add the refrigerant through the compressor suction service valve.
  • Page 40 Subcooling should be within ± 3°F (1.7°C) 11. Repeat steps 7 through 10 for Compressor Circuit 2. 12. Change E177.1 and E177.2 back to 15 minutes after both circuits are charged. Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...

  • Page 41: Checklist For Completed Installation

    7 CHECKLIST FOR COMPLETED INSTALLATION 7.1 Moving and Placing Equipment Unpack and check received material. 2. Make sure that proper clearance for service access has been maintained around the equipment. 3. Check that equipment is level and mounting fasteners are tight. 7.2 Electrical Installation Checks Check that supply voltage and phase matches equipment nameplate.
  • Page 42 8.65 41,000 69667 7.41 8.86 42,000 71366 7.58 9.07 43,000 73066 7.75 9.27 44,000 74765 7.92 9.48 *Maximum air flow calibration voltage must be adjusted based on the required air flow. Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...
  • Page 43 Table 7.2 Air Flow Calibration Voltage DA265 Air Flow* at 0.1 in. (25 Pa) ESP Air Flow Calibration Voltage 60 Hz 50 Hz 25000 42,475 5.42 6.49 26,000 44,174 5.61 6.71 27,000 45,873 5.80 6.94 28,000 47,572 5.99 7.17 29,000 49,271 6.18 7.40 30,000 50,970 6.37...
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  • Page 45: Initial Startup Checks And Commissioning Procedure For Warranty Inspection

    • Contact your local sales representative or technical support if you have any questions or problems during unit startup and commissioning. Visit https://www.Vertiv.com/en-us/support/ or call 1-800-543-2778 for contacts. 8 Initial Startup Checks and Commissioning Procedure for Warranty Inspection...
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  • Page 47: Maintenance

    9 MAINTENANCE 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.

  • Page 48: 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 airflow direction marked on the filter is the same direction as unit air flow.

  • Page 49: Fan Maintenance

    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 opening the fan motor electric connection enclosure.

  • Page 50: Fan Impellers

    Contact the motor manufacturer to determine the type of grease to use for lubrication. 9.2.4 Removing Fan Assembly Do not attempt to remove the fan assemblies without first contacting Vertiv Technical Support at 1-800-543-2778. 9.3 Condensate Drain and Condensate Pump System Maintenance 9.3.1 Condensate Drain...

  • Page 51: Electronic Expansion Valve (Eev) Maintenance

    Do not mix polyolester (POE) and mineral based oils. • Do not mix oils of different viscosities. • Consult Vertiv technical support or the compressor manufacturer if questions arise. Table 9.3 Compressor Oil Types for R-410A Refrigerant Compressor Type Oil Type Copeland Scroll and Digital Scroll POE Oil - ISO 32 Centistoke Viscosity 1.

  • Page 52: Replacement Compressors

    Replacement compressors are available through your Vertiv sales office. If the unit is under warranty, the replacement compressor must be obtained from and the original compressor returned to your local Vertiv sales office. Compressors are shipped in reusable packaging, and the original compressor should be returned in the same packaging.

  • Page 53: Compressor Electrical Failure (Motor Burnout)

    If a burnout has occurred, a full system clean out is required. If not cleaned, compressor and system problems will continue. Consult the factory for compressor maintenance. Do not attempt to remove the compressor without first contacting Vertiv support at 1-800-543-2778.

  • Page 54: Replacing A Compressor With Mechanical Failure

    The DA250 and DA265 units contain single slab coils. This results in different evaporator (suction) temperatures between System 1 and System 2. The outer coil (System 1) will operate at a higher evaporator temperature than the inner coil (System 2) when operating at the same compressor loading. Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...

  • Page 55: Air Cooled Condenser Maintenance

    9.7 Air Cooled Condenser Maintenance Restricted airflow will reduce operating efficiency and could result in high compressor head pressure and loss of cooling. • Clear the coil surface of all debris that will inhibit airflow. • Check for bent or damaged coil fins and correct. •...
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  • Page 57: Preventive Maintenance Checklist

    10 PREVENTIVE MAINTENANCE CHECKLIST Source: DPN002952, Rev. 4 Inspection Date Job Name Indoor Unit Model # Indoor Unit Serial Number # Condenser/Drycooler Model # Condenser/Drycooler Serial # 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.
  • Page 58 Check/test the CAN connection between the indoor and outdoor units (if equipped). Refrigeration Piping o Check the refrigerant lines (clamps secure/no rubbing/no leaks). o Check for moisture (sight glass). o Check for restriction temperature drop across filter drier. Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...
  • Page 59 Compressor Section o Check the oil level. o Check for oil leaks o Check the compressor mounts (springs/bushings). o Verify that the cap tubes are not rubbing. o Check/re-torque the wire connections (inside the compressor box). o Check the compressor operation (vibration/noise). o Check the crank-case heater fuses/operation.
  • Page 60 Indoor unit return air temperature  __________ Receiver sight-glass level _________ o Motor amp draw   #1   #2   #3   #4   #5   #6   #7   #8   #9   #10 L1   #11   #12 L1   #13 L1   #14 L1   #15 L1   #16 L1 Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...
  • Page 61 Liebert® EconoPhase Pumped Refrigerant Economizer o Check for refrigerant leaks. o Check/re-torque the wire connections. o Check the contactors for pitting (replace if pitted). o Verify the pump-speed control operation. o Check the pump mounting. 10 Preventive Maintenance Checklist...
  • Page 62 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 1-800-543-2778. Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...

  • Page 63: Appendices

    APPENDICES Appendix A: Technical Support and Contacts A.1 Technical Support/Service in the United States Vertiv™ Group 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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  • Page 65: Appendix B: Submittal Drawings

    Appendix B: Submittal Drawings Table B.1 Submittal Drawings Contents Document Number Title Component Location DPN004368 Liebert® DSE Cabinet Dimension Data DA250, DA265 with Horizontal Discharge Dimension Planning Drawings — Downflow Units DPN004366 Liebert® DSE Cabinet Dimensional Data DA250, DA265 with Horizontal Discharge DPN004516 Liebert®...
  • Page 66 ® LIEBERT COMPONENT LOCATION DIAGRAM DA250, DA265 1. Blower/Motor (Typical 3) 2. Line Reactor Transformers (Typical 3) 3. Evaporator Coil 4. Air Filters 5. Condensate Pump (optional) 6. Compressor Compartment 7. Electric Panel 8. 575v Step Down Transformer 9. VFD Assemblies (Typical 3) Filter removed for clarity DPN004368 REV : 2...
  • Page 67 ® LIEBERT CABINET DIMENSIONAL DATA DA250, DA265 W/ HORIZONTAL DISCHARGE 83 1/2" 2122mm 60 1/8" 1528mm Section For Unit Disassembly Data Refer to DPN004369 120 1/8" 3051mm Top View 44 3/8" 1127mm 134 1/8" 3406mm 70" 1779mm Louvers 59" Rear View 1499mm 118 3/8"...
  • Page 68 ® LIEBERT CABINET DIMENSIONAL DATA DA250, DA265 W/ BOTTOM DISCHARGE 83 1/2" 2122mm 60 1/8" 1528mm Section 120 1/8" For Unit Disassembly Data 3051mm Top View Refer to DPN004369 44 3/8" 1127mm 134 1/8" 3406mm Front View Rear View (Data Hall Side) (Service on Gallery Side) DPN004516 REV : 3...
  • Page 69 ® LIEBERT INSTALLATION & SERVICE CLEARANCE DATA DA250, DA265 INSTALLATION, REPLACEMENT FROM DATA CENTER SIDE, MAINTENANCE FROM GALLERY Fan service zone Piping & Cables must not be Data Hall routed in this zone. Gallery Side 88" (2235mm) Installation and replacement clearance for full unit 42"...
  • Page 70 ® LIEBERT INSTALLATION & SERVICE CLEARANCE DATA DA250, DA265 INSTALLATION, SERVICE, AND MAINTENANCE FROM GALLERY Fan service zone Piping & Cables must not be routed in this zone. Data Hall Gallery Side 88" (2235mm) Full Unit and Electrical Panel Access Fan service zone Piping &...
  • Page 71 ® LIEBERT INSTALLATION & SERVICE CLEARANCE DATA DA250, DA265 PERIMETER INSTALLATION AND SERVICE CLEARANCE Fan service zone Piping & Cables must not be routed in this zone. Data Hall Full Unit and 88" Electrical Panel (2235mm) access Fan service zone Piping &...
  • Page 72 ® LIEBERT FLOOR PLANNING FOR ADJACENT DA250, DA265 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. Data Hall Side Data Hall Side 3/4"...
  • Page 73 ® LIEBERT FLOORSTAND DIMENSIONAL DATA DA250, DA265 36 3/8" 46" 33 7/8" 924mm 1168mm 860mm 39 1/4" 997mm Typ. (2) Plcs. 78 1/2" 1994mm Typ. 1 3/4" 44mm 33 7/8" 46" 36 3/8" 1 3/4" Typ. 860mm 1168mm 924mm 44mm Typ.
  • Page 74 ® LIEBERT ELECTRICAL FIELD CONNECTIONS DA250, DA265 DOWNFLOW MODELS STANDARD ELECTRICAL CONNECTIONS 1) High voltage entrance - Located in bottom and top of box (quantity 3) 2) Low voltage entrance – Located in bottom and top of box (quantity 4) 3) Three phase electrical service - Terminals are on top of disconnect switch.
  • Page 75 ® LIEBERT ELECTRICAL FIELD CONNECTIONS DA250, DA265 DOWNFLOW MODELS OPTIONAL ELECTRICAL CONNECTIONS 12) 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.
  • Page 76 ® LIEBERT ELECTRICAL FIELD CONNECTIONS DA250, DA265 DOWNFLOW MODELS DETAIL A DPN004797 REV : 3 Page :3 /3 REV DATE : 1/20...
  • Page 77 LIEBERT HEAT REJECTION SKID ® CANbus & INTERLOCK CONNECTIONS ® ® Liebert MCV + Liebert ECONOPHASE + BASE ASSY ECONOPHASE CONTROL BOARDS (FACTORY SET) CIRCUIT 1 CIRCUIT 2 CANBUS ADDRESSING DIPSWITCH Liebert ® EconoPhase CONDENSER CONTROL BOARDS (FACTORY SET) CANBUS COMMUNICATION CABLE CIRCUIT 1 TB50 CAN H...
  • Page 78 LIEBERT HEAT REJECTION SKID ® CANbus & INTERLOCK CONNECTIONS ® ® Liebert MCV + Liebert ECONOPHASE + BASE ASSY COMPONENT NOTES: 1. COMPONENT APPEARANCE, ORIENTATION, AND POSITION MAY VARY BETWEEN PRODUCT LINES. TERMINAL NAMES REMAIN CONSTANT. 2. ALL CIRCUITS TO THESE CONNECTION POINTS REMAIN CONSTANT. CAN &...
  • Page 79 ® LIEBERT iCOM™ UNIT TO UNIT NETWORK CONNECTIONS LIEBERT® CW, LIEBERT® CWA, LIEBERT® DS, LIEBERT® DSE, LIEBERT® PDX, LIEBERT® PCW RS485 SITE AND BMS COMMUNICATION CONNECTIONS ETHERNET DETAIL A ETHERNET CABLE (FIELD SUPPLIED) UNIT-TO-UNIT NETWORKING SWITCH (FIELD SUPPLIED) iCOM™ MICROPROCESSOR AND I/O BOARD TO / FROM OTHER NETWORKED UNITS...
  • Page 80 ® LIEBERT iCOM™ UNIT TO UNIT NETWORK CONNECTIONS LIEBERT® CW, LIEBERT® CWA, LIEBERT® DS, LIEBERT® DSE, LIEBERT® PDX, LIEBERT® PCW ETHERNET CABLE (FIELD SUPPLIED) iCOM™ iCOM™ MICROPROCESSOR MICROPROCESSOR AND I/O BOARD AND I/O BOARD P100 P100 P95 DVI-D CABLE CONNECTION TO 7-INCH ICOM DISPLAY P100 POWER SUPPLY TO P95 DVI-D CABLE CONNECTION...
  • Page 81 LIEBERT DSE PIPING SCHEMATIC DA125, DA150, DA165 & DA250 with LIEBERT MCV Differential LIEBERT MCV HEAT REJECTION SKID Optional "EconoPhase" UNIT Check Valve Differential Check Valve Check Valve Liquid to Indoor Unit LIEBERT MCV CONDENSER LIEBERT DSE RECEIVER Solenoid Ball Valve Ball Valve Valve Hot Gas...
  • Page 82 LIEBERT ® PIPING SCHEMATIC DA265 with LIEBERT ® Differential Liebert ® MCV HEAT REJECTION SKID Optional Liebert EconoPhase" UNIT ® Check Valve Differential Check Valve Check Valve Liquid to Indoor Unit Liebert ® MCV CONDENSER Solenoid Ball Valve Ball Valve Valve Hot Gas Discharge...
  • Page 83 ® LIEBERT PRIMARY CONNECTION LOCATIONS DA250, DA265 HG C2 LIQ C2 HG C1 LIQ C1 HR HV HR LV View A-A (Top View) Service Side of Unit LIQ C1 HR LV LIQ C2 HR HV HG C1 HG C2 Service Side View View B-B (Bottom View) Top View...
  • Page 84 LIEBERT ® AIR COOLED PIPING SCHEMATIC Liebert ® MCV MOUNTED ABOVE DA125-250 CIRCUIT 1 CIRCUIT 2 Notes: The outlet of the receiver must be higher than the elevation of the EEV inside the indoor unit. T he vertical height must not be greater than 60 ft (18.3 m). Unit must be trapped at bottom of riser with any rise over 5 feet (1.5m) high.
  • Page 85 LIEBERT ® AIR COOLED PIPING SCHEMATIC Liebert MCV AND DA125-250 AT SIMILAR LEVEL ® CIRCUIT 1 CIRCUIT 2 Liebert ® MCV Condenser Unit Liebert ® Liebert ® EconoPhase Unit 44 1/2inch 1130mm Notes: DA250 with horizontal discharge should be piped out the top of unit.
  • Page 86 LIEBERT ® AIR COOLED PIPING SCHEMATIC Liebert ® MCV MOUNTED ABOVE DA265 CIRCUIT 1 CIRCUIT 2 Notes: The bottom of the condenser coil must be no greater than 60 ft (18.3m) higher than the elevation of the EEV inside the indoor unit. Unit must be trapped at bottom of riser with any rise over 5 feet (1.5m) high.
  • Page 87 LIEBERT ® AIR COOLED PIPING SCHEMATIC Liebert ® MCV AND DA265 AT SIMILAR LEVEL CIRCUIT 1 CIRCUIT 2 Liebert ® MCV Condenser Unit Liebert ® EconoPhase 54 7/8" 1393mm Unit Notes: DA265 with horizontal discharge should be piped out the top of unit. Hot Gas Discharge Hot Gas...
  • Page 88 LIEBERT ® FILTER REPLACEMENT DA250, DA265 Filters accessed through gallery side service door. Filters are removed and installed through this position of the filter rack. Unit side panels, fan deck and compressor module hidden for clarity. DPN005217 REV : 0 Page :1 /1 REV DATE : 02/12/20...
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  • Page 90 Vertiv | Liebert® DSE Thermal Management System Installer/User Guide...
  • Page 91 Vertiv.com | Vertiv Headquarters, 1050 Dearborn Drive, Columbus, OH, 43085, USA © 2020Vertiv Group Corp. All rights reserved. Vertiv and the Vertiv logo are trademarks or registered trademarks of Vertiv Group Corp. All other names and logos referred to are trade names, trademarks or registered trademarks of their respective owners.

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