Emerson Liebert CRV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Bedienungsanleitung

Precision CoolingFor Business-Critical Continuity™Liebert® CRV™User Manual–60Hz, 24-Inch Wide, Air-Cooled, Water/Glycol-Cooled and Chilled Water

Important Safety InstructionsLiebert® CRV™2NOTICERisk of overhead interference. Can cause unit and/or building damage.The unit may be too tall to fit

Important Safety Instructions3Liebert® CRV™NOTICERisk of water leakage. Can cause severe property damage and loss of critical data center equipment.Th

Liebert CRV Component LocationLiebert® CRV™41.0 LIEBERT CRV COMPONENT LOCATIONFigure 1 Component location, common components—All modelsFigure 2 Compon

Liebert CRV Component Location5Liebert® CRV™Figure 3 Component location - Liebert CR035RW, CR020RW water/glycol-cooled unitsFigure 4 Component locatio

Liebert CRV Component LocationLiebert® CRV™6Figure 5 Overall dimensions / service areaTable 1 Dry weight, all model types, ± 5%Model No.Model TypeAir

Introduction7Liebert® CRV™2.0 INTRODUCTION2.1 Product DescriptionThe Liebert CRV is a precision cooling unit available in compressorized (air-, water-

Inspection and UnpackingLiebert® CRV™83.0 INSPECTION AND UNPACKINGNOTICERisk of overhead interference. Can cause unit and/or building damage.The unit

Inspection and Unpacking9Liebert® CRV™• Always keep the packaged Liebert CRV upright and never leave it outdoors.• Be aware of the center of gravity i

Inspection and UnpackingLiebert® CRV™103.3 Moving the Unit Using Rigging1. Use a pallet jack or forklift to raise the packaged unit.2. Place slings un

Inspection and Unpacking11 Liebert® CRV™Figure 10 Unpacking the Liebert CRV3.5 Removing the Unit from the Skid1. Open the top panel door with the moun

MODEL NUMBER NOMENCLATURE - 25 DIGIT CONFIGURATION NUMBERModel # Part 1 * Model Details Model # Part 2 *12345678910111213141516171819202122232425CR0 2

Inspection and UnpackingLiebert® CRV™12Figure 11 Removing the unit from the skid3.6 Reattach the Baffle PanelOnce the Liebert CRV has been moved to wh

Prepare the Liebert CRV for Installation13 Liebert® CRV™4.0 PREPARE THE LIEBERT CRV FOR INSTALLATION1. Open the display door and remove the lower fron

PipingLiebert® CRV™145.0 PIPINGAll fluid and refrigeration connections to the unit, with the exception of the condensate drain, are sweat copper. Fact

Piping15 Liebert® CRV™5.1.1 Condensate Piping—Field-Installed• Do not reduce drain lines• Do not expose drain line to freezing temperatures• Drain lin

PipingLiebert® CRV™165.1.3 Requirements of Systems Using Water or GlycolThese guidelines apply to the field leak checking and fluid requirements for f

Piping17 Liebert® CRV™Leak Checking of Unit and Field PipingLiebert unit fluid systems are factory-checked for leaks and may be shipped with a nitroge

Refrigerant ConnectionsLiebert® CRV™186.0 REFRIGERANT CONNECTIONSNOTICERisk of oil contamination with water. Can cause equipment damage.The piping mus

Refrigerant Connections19 Liebert® CRV™6.1 Piping Guidelines—Air-Cooled Units• Indoor unit ships with a nitrogen holding charge; do not vent the evapo

Refrigerant ConnectionsLiebert® CRV™206.2.1 General Layout1. Piping must be Type ACR copper tubing and sized per Tables 7, 8, 9 and 10.Use the shortes

Refrigerant Connections21 Liebert® CRV™Figure 16 Pipeline air conditioner - condenser6.2.2 Pipe Diameter and Thickness!WARNINGRisk of explosive discha

iTABLE OF CONTENTS1.0 LIEBERT CRV COMPONENT LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42.0 INTRODUCTION

Refrigerant ConnectionsLiebert® CRV™22Table 9 Piping and refrigerant sizes for Liebert air-cooled, VFD control condensers with R-410ACondenser Piping

Refrigerant Connections23 Liebert® CRV™6.2.3 Installing PipingThe following operations must be carried out by an experienced refrigeration technician.

Refrigerant ConnectionsLiebert® CRV™24Figure 17 Connections—air-cooled modelsLVTLVTRGRLRLGD or CPRGPiping and electrical connections available at the

Refrigerant Connections25 Liebert® CRV™Table 11 Unit connections, air-cooled modelsUnit Connections CR20A (50Hz) CR35A (50Hz) CR20A (60Hz) CR35A (60Hz

Refrigerant ConnectionsLiebert® CRV™266.3 Vacuum and Refrigerant ChargeNOTICERisk of improper refrigerant charge. Can cause equipment damage and reduc

Refrigerant Connections27 Liebert® CRV™Figure 18 Connections for vacuum creation and refrigerant charge6.3.1 Evacuation Air-Cooled ModelsVariable Fan

Refrigerant ConnectionsLiebert® CRV™28Variable Fan Speed Charging1. Check unit nameplate for refrigerant type to be used. Unit control configurations

Water Connections29 Liebert® CRV™7.0 WATER CONNECTIONS7.1 Water Connections—Supply Humidifier and Drain Water, All ModelsUnits with a condensate pump

Water ConnectionsLiebert® CRV™307.2 Glycol MixtureAdd ethylene glycol or propylene glycol to the circuit in the percentages shown in Table 18.7.3 Wate

Water Connections31 Liebert® CRV™7.4 Chilled Water Connections: Chilled Water UnitsFigure 20 Chilled water connectionsRefer to Figure 21 when performi

ii9.5 Remote Rack Sensor Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449.5.1 DIP Switc

Water ConnectionsLiebert® CRV™32Figure 22 Air bleeding valve position CWREAR VIEW

Water Connections33 Liebert® CRV™Figure 23 Connections—water/glycol modelsHVTLVTLVTHSCPCRCSGDHor HSCRPiping and electricalconnections available atthe

Water ConnectionsLiebert® CRV™34Table 19 Unit connections, water/glycol-cooled modelsUnit Connections CR20W (50Hz) CR35W (50Hz) CR20W (60Hz) CR35W (60

Water Connections35 Liebert® CRV™Figure 24 Connections—chilled water modelsPiping and electrical connections availableat the top and bottomof the unit

Water ConnectionsLiebert® CRV™36Figure 25 Recommended drycooler Installation Table 20 Unit connections, chilled water modelsUnit Connections CR040C (5

Electrical Connections37 Liebert® CRV™8.0 ELECTRICAL CONNECTIONS8.1 Electrical connectionsFigure 26 Remove electrical panel and lower front panel!WARN

Electrical ConnectionsLiebert® CRV™38Figure 27 Power and control cable entry points and routingBefore proceeding with the electrical connections, ensu

Electrical Connections39 Liebert® CRV™8.2 Protective Features of the Electrically Commutated FansThe EC fans are protected against:• Overtemperature o

StartupLiebert® CRV™409.0 STARTUP9.1 Initial StartupTo start the Liebert CRV:1. Open all valves in the refrigeration circuit according to the instruct

Startup41 Liebert® CRV™Checks to Perform after StartupOnce the system is operating under load, check the various components, as follows:1. Verify that

iii14.3 Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10814.4 Insp

StartupLiebert® CRV™429.3 Chilled Water Valve: Chilled Water ModelsThe 3-way valve controls the chilled water flow and operates as follows (refer to F

Startup43 Liebert® CRV™To adjust the baffles:1. Open the door containing the Liebert iCOM® display.2. Remove the two screws holding a baffle panel seg

StartupLiebert® CRV™44Figure 32 Adjust air-blocking plateInstructions to adjust the air blocker:1. Remove the three screws that attach the blocker pla

Startup45 Liebert® CRV™Figure 33 Figure 2T rack sensor9.5.1 DIP Switch SettingsThree 2T sensor housings are included with each Liebert CRV. The DIP sw

StartupLiebert® CRV™469.5.2 Set 2T Rack Sensor Identities—DIP Switch settings1. Confirm the DIP switches are set correctly for 2T sensors numbered 1,

Startup47 Liebert® CRV™Figure 36 Termination jumper setting9.5.4 Route the CAN bus wire into the cooling unitThe CAN bus sensors connect to the open C

StartupLiebert® CRV™489.5.5 Installing 2T sensors on racksBoth temperature sensors attached to a 2T sensor housing are to be installed on 1 rack. The

Startup49 Liebert® CRV™Located in the Service / Rack Setup Menu of the Liebert iCOM® display, the sensors can be set up to either display or control t

StartupLiebert® CRV™50Figure 40 Rack setup screen, page 3 of 3Once a sensor has been assigned to either control or display its temperature data, a cus

Liebert iCOM® Control51 Liebert® CRV™10.0 LIEBERT ICOM® CONTROLThe Liebert CRV is equipped with the most advanced Liebert iCOM control system. The lar

ivFigure 20 Chilled water connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Liebert iCOM® ControlLiebert® CRV™52Figure 42 Liebert iCOM® default screen symbols10.1 Navigating Through the Liebert iCOM MenusLiebert iCOM shows ico

Liebert iCOM® Control53 Liebert® CRV™change the unit being viewed. Pressing the ESC key will go back a level. Figures 44 and 45 show the Liebert iCOM®

vFigure 70 Diagnostics / service mode parameters screen - Page 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81Figure 71 Diagnos

viTABLESTable 1 Dry weight, all model types, ± 5% . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Important Safety Instructions1Liebert® CRV™IMPORTANT SAFETY INSTRUCTIONSSAVE THESE INSTRUCTIONSThis manual contains important safety instructions that