Vertiv Liebert CRV CRD25 User Manual
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Vertiv Liebert CRV CRD25 User Manual

25 kw and 35 kw, 50 hz, row-based cooling system
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Liebert® CRV CRD25 and CRD35
User Manual (Original Instructions)
25 kW and 35 kW, 50 Hz, Row-Based Cooling System

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Summary of Contents for Vertiv Liebert CRV CRD25

  • Page 1 Liebert® CRV CRD25 and CRD35 User Manual (Original Instructions) 25 kW and 35 kW, 50 Hz, Row-Based Cooling System...
  • 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

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual TABLE OF CONTENTS 1 Important Safety Instructions 2 Product Overview 2.1 Model Nomenclature 2.2 Name Plate and Components 2.3 Component Location 2.4 Accessories 2.5 System Data 3 Pre-installation Preparation 3.1 Tools Required...
  • Page 4 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 6.2.3 Connecting the Water Leakage Sensor (Optional) 6.2.4 Connecting the Static Pressure Sensor (Optional) 6.2.5 Connecting the Monitor Device to Unity Card (Optional) 6.2.6 Connecting Alarm Device (Optional) 6.2.7 Connecting Remote Temperature Sensors (Optional) 6.2.8 Connecting the Remote On/Off Device (Optional)

  • Page 5: Important Safety Instructions

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 1 Important Safety Instructions NOTE: Before moving, installing or servicing this unit, please read the Safety Instructions sheet provided as a separate document shipped with the unit. 1 Important Safety Instructions...
  • Page 6 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual This page intentionally left blank 1 Important Safety Instructions...

  • Page 7: Product Overview

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 2 Product Overview The Vertiv™ Liebert® CRV CRD25 and CRD35 row-based cooling units are specifically created and designed for small to medium data centers, computer rooms, equipment rooms, and similar high heat density environments.

  • Page 8: Name Plate And Components

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 2.2 Name Plate and Components Figure 2.1 Name Plate Location Item Description Front door Name plate on the side cover of the electrical box 2 2 Product Overview...
  • Page 9 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 2.2 Vertiv™ Liebert® CRV CRD25 and CRD35 Name Plate Information Name Plate Information Description Name Plate Information Description Net weight and gross weight of the UNIT Unit defined by 6 digits...

  • Page 10: Component Location

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 2.3 Component Location Figure 2.3 Vertiv™ Liebert® CRV CRD25 Component Location Item Description Item Description Side panel Electrical box 2 Top panel Compressor Filter Heat exchanger Rear door Humidifier...

  • Page 11: Accessories

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 2.4 Vertiv™ Liebert® CRV CRD35 Component Location Item Description Item Description Side panel Electrical box 2 Top panel Compressor Filter Heat exchanger Rear door Humidifier Bottom panel EC fan...

  • Page 12: System Data

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Table 2.3 Accessories Component Quantity Remote temperature sensor (IRMS01T) Cable for remote temperature sensor Water leakage detection board (CM20AR) Bracket for water leakage detection board Cable for water leakage detection board Rc1/2 in.
  • Page 13 NOTE: The operating limits refer to new units and those that have been correctly installed and serviced. NOTE: If the altitude is higher than 1000 m (3280.8 ft), please contact Vertiv™. NOTE: For information about the height between evaporator and condenser with low ambient kit, see...
  • Page 14 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Table 2.7 Sound Level (Measurement Standard: EN 13487) (continued) 1/3 Octave Band Center Freq Average Sound Pressure Level Model Location Speed dB(A) Sound Pressure Level dB(A) Front 77.1 18.2 30.1...

  • Page 15: Pre-Installation Preparation

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 3 Pre-installation Preparation WARNING! Risk of top-heavy unit falling over. Improper handling can cause equipment damage, injury or death. Read all of the following instructions and verify that all lifting and moving equipment is rated for the weight of the unit before attempting to move, lift, remove packaging from or prepare the unit for installation.

  • Page 16: Dimensions And Weights

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 3.2 Dimensions and Weights Figure 3.1 Unit Dimension Unit Dimensions (Width x Shipping Dimensions (Width x Model Net Weight kg (lb) Shipping Weight kg (lb) Depth x Height) mm (in.) Depth x Height) mm (in.)

  • Page 17: Clearance Requirements

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 3.3 Clearance Requirements Figure 3.2 Vertiv™ Liebert® CRV CRD25 Clearance Requirements (Top View) (Unit mm (in.)) Figure 3.3 Vertiv™ Liebert® CRV CRD35 Clearance Requirements (Top View) (Unit mm (in.)) NOTE: Keep at least 915 mm (36 in.) from the front door and rear door to the wall or to other obstacles for service...

  • Page 18: Moving The Packaged Unit

    • Additional inspection of the unit is warranted to ensure no exterior or internal damage. Report damage immediately to the carrier and file a damage claim with a copy sent to Vertiv™ or to your sales representative. 3.5 Moving the Packaged Unit Transport the unit with a forklift.

  • Page 19: Removing The Unit From The Pallet

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 2. Remove the side wooden panels. And then remove the top wooden panel and the cushioning from the top of the unit. 3. Remove the stretch wrap that attach the ramp to the unit. Remove the ramp and set it aside until needed for moving the unit.
  • Page 20 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 3.6 Removing Shipping Brackets from Pallet 3. Place two ramps on the pallet by fitting the tabs into the holes on the pallet. Figure 3.7 Installing Ramps 4. Lift the four leveling feet under the unit. Lift the unit one corner at a time.
  • Page 21 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 3.8 Lifting Leveling Feet Item Description Fixing nut Hex bolt 5. Move the unit to its installation location using the built-in casters. 3 Pre-installation Preparation...
  • Page 22 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual This page intentionally left blank 3 Pre-installation Preparation...

  • Page 23: Installing In Enclosure Row

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 4 Installing in Enclosure Row 4.1 Leveling the Unit To level the unit: Use an adjustable wrench to loosen the fixing nut on each foot in counterclockwise direction. 2. Rotate the hex bolt on the base of each foot in clockwise or counterclockwise direction until the foot rises or falls to a suitable position.

  • Page 24: Combining The Unit With Adjacent Cabinets

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 4.2 Fixing the Unit to the Floor Bracket Item Description Holes for installing M12 x 25 screws 4.3 Combining the Unit with Adjacent Cabinets Eight baying brackets are provided with the unit. Use four for the front side and four for the rear side. To combine the unit with adjacent cabinets: Open the front door.

  • Page 25: Location Of The Main Grounding Point

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 4.3 Installing the Baying Brackets Item Description Item Description Baying bracket (eight pieces) Position to install the screw on the left frame Position to install the screw on the right frame 4.4 Location of the Main Grounding Point...

  • Page 26: Removing Compressor Fixing Plates

    The fastening plate above the upper filter 3. For Vertiv™ Liebert® CRV CRD25 cooling unit, remove two fixing plates from the compressor. To remove each fixing plate, loosen the M8 x 60 screw on it so as to remove the plate. Then torque the screw at 12±1 Nm (8.85±0.74 ft/lb).
  • Page 27 M8 x 60 screw 4. For Vertiv™ Liebert® CRV CRD35 cooling unit, remove three fixing plates from the compressor. To remove each fixing plate, loosen the M8 x 60 screw on it so as to remove the plate. Then torque the screw at 12±1 Nm (8.85±0.74 ft/lb).

  • Page 28: Installing Top Frame And Front Frame (Optional)

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 4.6 Installing Top Frame and Front Frame (Optional) The unit can be installed with only the top frame, or it can be installed with both the top frame and front frame.
  • Page 29 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 4.9 Dimensions of the Top Frame (CRD35) (Unit mm (in.)) Item Description Top frame To install the top frame: Install the top frame and fixed it with four M12 × 30 screws.
  • Page 30 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 4.10 Installing the Top Frame without the Front Frame (CRD35 as an Example) Item Description Item Description Top frame M12 × 30 screw V logo NOTE: After the top frame is installed, use plastic caps to cover the unused holes on the top plate.

  • Page 31: Installing The Top Frame And The Front Frame

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 4.6.2 Installing the Top Frame and the Front Frame Figure 4.11 Dimensions of the Top Frame and the Front Frame (CRD25) (Unit mm (in.)) Item Description Top frame Front frame...
  • Page 32 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 4.12 Dimensions of the Top Frame and the Front Frame (CRD35) (Unit mm (in.)) Item Description Top frame Front frame To install the top frame and the front frame: Open the front door, disconnect the grounding cable from the front door by removing the M4 screw.
  • Page 33 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 4.13 Removing the Front Door (CRD35 as An Example) Item Description Item Description Circlip Door hinge M6 Philips head screw 3. Install the front frame to the unit with ten M5 × 12 screws (six on the left and right frames and four on the top and bottom frames).
  • Page 34 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 4. Install the top frame on the top panel of the unit with four M12 × 30 screws. Figure 4.15 Installing the Top Frame (CRD35 as An Example) Item Description M12 ×...

  • Page 35: Piping And Refrigeration Connections

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 5 Piping and Refrigeration Connections WARNING! Risk of over-pressurization of the refrigeration system. Can cause explosive discharge of high- pressure refrigerant, loss of refrigerant, environmental pollution, equipment damage, injury, or death. This unit contains fluids and gases under high pressure.

  • Page 36: General Arrangement

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 5.1 General Arrangement Figure 5.1 General Arrangement Diagram Item Description Item Description Compressor Solenoid valve Discharge temperature sensor Filter drier High pressure sensor Sight glass High pressure switch Electronic expansion valve...
  • Page 37 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 5.2 Condenser Placed Higher than the Evaporator Item Description Item Description The gap between the pipe and the wall needs to Condenser (outdoor) be sealed Inverted trap Heat insulation floor...
  • Page 38 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 5.3 Condenser Placed Lower than the Evaporator Item Description Item Description Condenser (outdoor) Heat insulation floor Liquid pipe Floor Gas pipe Condensate pipe The gap between the pipe and the wall needs to...
  • Page 39 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 5.4 Location and Dimension of Pipe and Cable Outlets on Top Plate and Base Plate (CRD25) (Unit mm (in.) ) Item Description Item Description Top plate Condensate Pump outlet...
  • Page 40 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 5.5 Location and Dimension of Pipe and Cable Outlets on Top Plate and Base Plate (CRD35) (Unit mm (in.)) Item Description Item Description Top plate Condensate Pump outlet...

  • Page 41: Connecting Drainage Pipes

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Table 5.1 Vertical Distance between Condenser and Evaporator Position of the Distance Condenser Condenser placed higher Maximum: 30 (98.4) Height between than evaporator evaporator and condenser m Condenser (ft) placed lower Maximum: -8 (-26.2)

  • Page 42: Top Connection

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 5.3.1 Top Connection A soft pipe has been pre-installed between the humidifier and the humidifier supply copper pipe. The top end of the humidifier supply copper pipe is located on the top plate. If water is supplied from the top of the unit, connect the top end of the humidifier supply copper pipe (Humidifier Supply on top plate) to your water supply system.
  • Page 43 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Table 5.2 External Diameter and Thickness of Pipelines External diameter mm (in.) x Pipe Thickness mm (in.) Pipe Length m (ft) CRD 25 Gas pipe CRD 25 Liquid Pipe...
  • Page 44 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 5.6 Location of Liquid Pipe and Gas Pipe for Bottom Routing (CRD25) Item Description Liquid pipe Gas pipe Figure 5.7 Location of Liquid Pipe and Gas Pipe for Bottom Routing (CRD35)

  • Page 45: Electrical Connections

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 6 Electrical 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.
  • Page 46 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual To connect the power supply cables: Open the rear door. The electrical box 1 is located under the top panel. Remove the cover plate from the electrical box 1 by removing three M4 x 10 pan head screws for CRD25 and four M4 x 10 pan head screws for CRD35.

  • Page 47: Connecting Communications Cables

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 6.2 Connecting Power Supply Cables for CRD35 Item Description Item Description Main circuit breaker Connecting to power supply 2 Connecting to power supply 1 6.2 Connecting Communications Cables 6.2.1 General Arrangement...
  • Page 48 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 6.3 Terminal Block Item Description Item Description CRD25 evaporator 41/42 Static pressure sensor CRD35 evaporator 24/51 Water leakage sensor A2/B2 RS485 75/76 Common alarm 37/38 Remote on/off device Figure 6.4 Communications Ports...

  • Page 49: Connecting Communications Cable Between Evaporator And Condenser

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Item Description Item Description CRD25 evaporator CAN 1 port CRD35 evaporator CAN 2 port Unity card RS485-1 6.2.2 Connecting Communications Cable between Evaporator and Condenser The communications cable is not provided with the unit. To connect the communications cable, connect one end of the cable to the A2 and B2 terminals of the evaporator, and connect the other end to the A2 and B2 terminals of the condenser.

  • Page 50: Connecting The Remote On/Off Device (Optional)

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Table 6.2 Address Settings for Remote Temperature Sensors Sensor Remote temperature sensor 1 Remote temperature sensor 2 Remote temperature sensor 3 Remote temperature sensor 4 Remote temperature sensor 5...
  • Page 51 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 6.5 Location of DIP SW3 Item Description Item Description Electrical box 2 EEV Driver board iCOM Edge board DIP SW3 Table 6.3 Address Settings of CAN ID CAN ID...
  • Page 52 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Table 6.3 Address Settings of CAN ID (continued) CAN ID SW3-1 SW3-2 SW3-3 SW3-4 SW3-5 SW3-6 SW3-7 SW3-8 Note Subordinate Unit 7 Subordinate Unit 8 Subordinate Unit 9 Subordinate...

  • Page 53: Start-Up

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 7 Start-up 7.1 Charging Refrigerant and Lubricating Oil 7.1.1 Amount of Refrigerant and Lubricating Oil NOTE: The unit is not charged with refrigerant from factory. You need to charge refrigerant on site. The refrigerant for the unit is R410A.
  • Page 54 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Table 7.1 CRD 25 Total Refrigerant Charge and Extra Lubricating Oil Charge (continued) Liquid Pipe Total Refrigerant Charge without Total Refrigerant Charge with Extra Lubricating Oil Charge without Extra Lubricating Oil Charge with...

  • Page 55: Evacuating The Unit

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual The total refrigerant charge is calculated using the following equations: Total refrigerant charge (kg) = Base refrigerant charge (kg) + Refrigerant charge per meter of each size of liquid pipe (kg/m) ×...
  • Page 56 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual b. After four hours, check the pressure readings and, if they have not changed, break vacuum with dry nitrogen. Pull a second and third vacuum to 65 Pa(a) or 500 microns or less. Re-check the pressure after two hours.

  • Page 57: Adding Lubricating Oil

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Item Description Item Description Compressor Electronic expansion valve Suction pipe Schrader valve Low pressure sensor Evaporator coil 7.1.3 Adding Lubricating Oil NOTE: The unit has been charged with certain amount of lubricating oil in the factory. If the liquid pipe between the evaporator and condenser is shorter than 30 m (98.4 ft) and the unit is not equipped with a low ambient kit, you do...

  • Page 58: Start-Up Procedure

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 7.2 Start-up Procedure 7.2.1 First Start-up (or After Long Standstill) To prevent the compressor from damaged, preheat the compressor for at least 12 hours before starting the unit (the compressor is preheated by its crankcase heater).

  • Page 59: Hmi Display

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 8 HMI Display 8.1 Appearance The HMI display is a 7-inch touch-screen color display. Figure 8.1 HMI Display The indicator (1) is located under the screen. Its colors and indication are described in the table below.

  • Page 60: Main Functions

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 8.2 Main Functions 8.2.1 Home Page After the HMI display is powered on for one minute, press Locked, input password 1490, and press Enter. The home page will be displayed. You can power on or off the unit by pressing and holding the ON/OFF button for three seconds.
  • Page 61 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 8.3 Functional Keys Table 8.2 Function Description Items Touch Keys Functional Description Home button Return to the home page Check or configure operation status, alarm information, temperature and humidity settings, parameter...

  • Page 62: Control Mode

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 8.2.2 Control Mode The compressor and fan are controlled according to temperature (supply air temperature, return air temperature, and remote temperature) and humidity (supply air humidity, return air humidity, and remote humidity).

  • Page 63: Teamwork Control

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 8.5 Teamwork Control Press the menu button and choose Parameter Settings > Teamwork Settings to set teamwork control. Teamwork Mode includes Teamwork 0, Teamwork 1, Teamwork 2, and Teamwork 3. Teamwork 0 indicates standby and rotation control.
  • Page 64 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual This page intentionally left blank 8 HMI Display...

  • Page 65: Maintenance

    NOTICE Only original spare parts made by Vertiv may be used. Using third-party material can invalidate the warranty. When the spare parts must be brazed, be careful not to damage the internal parts (gaskets, seals, o-rings, etc.).

  • Page 66: Air Filters

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Maintenance Period Component Check Items Monthly by user 3 months 6 months 1 year Check the condition of contactors Check electrical connections Electronics Check the operation of controller Check unit operation sequence...

  • Page 67: Condenser

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Condensate pump To maintain or replace the pump: Open the rear door. Disconnect the main circuit breaker. 2. Remove filters. For details on removing filters, see Removing the Upper and Lower Filters on page 22 .

  • Page 68: Electric Heater

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 9.1 Removing fan Item Description Item Description M5 x 12 hex screw M4 x 80 pan head screw fan frame assembly Grounding screw Power socket 9.6 Electric Heater To maintain the electric heater: Open the rear door and disconnect the main circuit breaker.
  • Page 69 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 5. Remove the M4 x 12 pan head screws from the electric heater. Each electric heater is fixed by four screws (two on top the two on bottom). Take out the heater.

  • Page 70: Humidifier

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 9.3 Removing Electric Heater for CRD35 Item Description Electric heater (four pieces) Terminal block 9.7 Humidifier To remove the humidifier: Open the rear door and disconnect the main circuit breaker.

  • Page 71: Refrigeration Circuit

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Figure 9.4 Removing Humidifier Item Description Item Description Steam hose connection Power electrode wire connection Level sensor wire connection Power switch NOTE: After replacing the filter, clear the operating time of the humidifier. Press the menu button on the HMI display, choose Maintenance >...

  • Page 72: Dismantling The Unit

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 9.9 Dismantling the unit CAUTION: The unit contains substances and components hazardous for the environment (electronic components, refrigerating gases and oils). At the end of the useful life, when the unit is dismantled, the operation must be carried out by specialized refrigerating technicians.
  • Page 73 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Problem Possible Cause Corrective Action Unit is not properly levelled Adjust the levelling feet Unit condensate drain pipe is clogged Remove pipe obstruction Piping insulation broken/damaged Restore insulation integrity...
  • Page 74 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual This page intentionally left blank 9 Maintenance...

  • Page 75: Regulation (Eu)

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 10 Regulation (EU) Stationary air conditioners within the European market and operating with fluorinated greenhouse gases (F-gas, such as R407C, R134a, R410A), have to comply starting from 1st Jan, 2015 with the F-gas Regulation (EU) No. 517/2014 which replaces the previous Re.
  • Page 76 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Our split units are usually not pre-charged on factory, in this case the total quantity of refrigerant charged in the unit has to be written in the relevant label, during the commissioning operation at the installation site.

  • Page 77: Appendices

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual 11 Appendices Appendix A: Menu Structure Level 1 Menu Level 2 Menu Parameter Return Temp 1 Return Hmd 1 Return Temp 2 Return Temp 3 Avg Return Temp Avg Return Hmd...
  • Page 78 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Level 1 Menu Level 2 Menu Parameter L1 Voltage L2 Voltage Power Information L3 Voltage Active Power AC Frequency Unit 00 Status Unit 01 Status Unit 02 Status Unit 03 Status...
  • Page 79 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Level 1 Menu Level 2 Menu Parameter Teamwork Mode Unit Address Unit Quantity Standby Quantity Rotation Quantity Rotation Cycle Parameter Settings Teamwork Settings Rotate Every Rotate At Manual Rotation...
  • Page 80 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Level 1 Menu Level 2 Menu Parameter Cascade Stop Point Cascade Max Point Cascade Start Delay Cascade Stop Delay Cascade Min Time High Supply Temp Alarm Alarm Settings Low Supply Temp Alarm...
  • Page 81 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Level 1 Menu Level 2 Menu Parameter Control Software Model Control Software Version Version Information About Display Software Model Display Software Version Service Information 11 Appendices...

  • Page 82: Appendix B: Alarm Table

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Appendix B: Alarm Table Alarm Description High Pressure Alarm The pressure of the discharge gas is higher than the set value The High Pressure Alarm is generated three times in an hour or the High Pressure Alarm is active for ten High Pressure Lock minutes.
  • Page 83 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Alarm Description Compressor Driver Protect 00 to The compressor driver detects abnormal operation. In this case, the compressor stops working Compressor Driver Protect 15 Fan 1 Failure, Fan 2 Failure, Fan 3 Failure,...

  • Page 84: Appendix C: Conformity To Eu Directives

    Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual Appendix C: Conformity to EU Directives Fabbricante-Manufacturer-Hersteller-Fabricant-Fabricante Fabricante- Tillverkare – Fabrikant – Valmistaja – Produsent Fabrikant – Kατασκεναστηξ – Producent Il Fabbricante dichiara che questo prodotto è conforme alle direttive Europea: The Manufacturer here by declares that this product conforms to the European Union directives: Der Hersteller erklärt hiermit, dass dieses Produkt den Anforderungen der europäischen Richtlinien gerecht wird:...

  • Page 85: Appendix D: Technical Support And Contacts

    United States: +1 800 543 2378; +1 800 543 2778; +1 800 222 5877 Europe, the Middle East and Africa: For technical support, please contact your local Vertiv or Partner office. You can also contact us using the contact details on our website: https://www.vertiv.com/en-emea/contacts2...
  • Page 86 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual This page intentionally left blank 11 Appendices...
  • Page 87 Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual...
  • Page 88 Vertiv.com | Vertiv Headquarters, 1050 Dearborn Drive, Columbus, OH, 43085, USA © 2021 Vertiv 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. While every precaution has been taken to ensure accuracy and completeness here, Vertiv Group Corp.

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