Vertiv Liebert CRV CRD25 User manual

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

Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual
Technical Support Site
If you encounter any installation or operational issues with your product, check the pertinent section of this
manual to see if the issue can be resolved by following outlined procedures.
Visit https://www.vertiv.com/en-emea/support/ for additional assistance.
The information contained in this document is subject to change without notice
and may not be suitable for all applications. While every precaution has been
taken to ensure the accuracy and completeness of this document, Vertiv
assumes no responsibility and disclaims all liability for damages result from
use of this information or for any errors or omissions.
Refer to local regulations and building codes relating to the application,
installation, and operation of this product. The consulting engineer, installer,
and/or end user is responsible for compliance with all applicable laws and
regulations relation to the application, installation, and operation of this
product.
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
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Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual

TABLE OF CONTENTS
1 Important Safety Instructions 1
2 Product Overview 3
2.1 Model Nomenclature 3
2.2 Name Plate and Components 4
2.3 Component Location 6
2.4 Accessories 7
2.5 System Data 8
3 Pre-installation Preparation 11
3.1 Tools Required 11
3.2 Dimensions and Weights 12
3.3 Clearance Requirements 13
3.4 Inspecting the Unit 13
3.5 Moving the Packaged Unit 14
3.6 Unpacking the Unit 14
3.7 Removing the Unit from the Pallet 15
4 Installing in Enclosure Row 19
4.1 Leveling the Unit 19
4.2 Removing the Feet and Fixing the Unit (Optional) 19
4.3 Combining the Unit with Adjacent Cabinets 20
4.4 Location of the Main Grounding Point 21
4.5 Removing Compressor Fixing Plates 22
4.6 Installing Top Frame and Front Frame (Optional) 24
4.6.1 Installing the Top Frame without the Front Frame 24
4.6.2 Installing the Top Frame and the Front Frame 27
5 Piping and Refrigeration Connections 31
5.1 General Arrangement 32
5.2 Connecting Drainage Pipes 37
5.2.1 Top Connection 37
5.2.2 Bottom Connection 37
5.3 Connecting Water Supply for Humidifier 37
5.3.1 Top Connection 38
5.3.2 Bottom Connection 38
5.4 Connecting Gas Pipe and Liquid Pipe 38
6 Electrical Connections 41
6.1 Connecting Power Supply Cable 41
6.2 Connecting Communications Cables 43
6.2.1 General Arrangement 43
6.2.2 Connecting Communications Cable between Evaporator and Condenser 45
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Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual

6.2.3 Connecting the Water Leakage Sensor (Optional) 45
6.2.4 Connecting the Static Pressure Sensor (Optional) 45
6.2.5 Connecting the Monitor Device to Unity Card (Optional) 45
6.2.6 Connecting Alarm Device (Optional) 45
6.2.7 Connecting Remote Temperature Sensors (Optional) 45
6.2.8 Connecting the Remote On/Off Device (Optional) 46
6.2.9 Connecting for Teamwork 46
7 Start-up 49
7.1 Charging Refrigerant and Lubricating Oil 49
7.1.1 Amount of Refrigerant and Lubricating Oil 49
7.1.2 Evacuating the Unit 51
7.1.3 Adding Lubricating Oil 53
7.1.4 Charging the Refrigerant 53
7.2 Start-up Procedure 54
7.2.1 First Start-up (or After Long Standstill) 54
7.2.2 Automatic Restart 54
8 HMI Display 55
8.1 Appearance 55
8.2 Main Functions 56
8.2.1 Home Page 56
8.2.2 Control Mode 58
8.3 Menu Structure and Parameters 58
8.4 Alarm Information 58
8.5 Teamwork Control 59
9 Maintenance 61
9.1 Maintenance Schedule 61
9.2 Air Filters 62
9.3 Condensate Drain and Condensate Pump 62
9.4 Condenser 63
9.5 Fan 63
9.6 Electric Heater 64
9.7 Humidifier 66
9.8 Refrigeration Circuit 67
9.9 Dismantling the unit 68
9.10 Troubleshooting 68
10 Regulation (EU) 71
11 Appendices 73
Appendix A: Menu Structure 73
Appendix B: Alarm Table 78
Appendix C: Conformity to EU Directives 80
Appendix D: Technical Support and Contacts 81
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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 1
Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual

1 Important Safety Instructions
2
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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.
The CRD25 and CRD35 indoor units are used together with the CCD25 and CCD35 condensers. CRD25 and CRD35 provide
power to CCD25 and CCD35 and control their operation.
2.1 Model Nomenclature
The following tables describe the model number for the Vertiv™ Liebert® CRV CRD25 and CRD35 cooling units.
Model Number
1 2 3 4 5 6 7 8 9 10 11 12
C R D 2 5 5 - P D 0 0 A
Table 2.1 CRD25 Model Number Example
Digit Variable Description
1 C
Vertiv™ Liebert® CRV
2 R
3 D Air cooled
4
25, 35 Model number
5
6 5 400 V, 3-phase, 50 Hz, CE
7 - Separator
8 P Reheat and humidifier
9 D Dual power supply
10 0 R410A refrigerant
11 0 Free digit
12 A- Z Revision
Table 2.2 CRD25 and CRD35 Model Number Digit Definitions
2 Product Overview 3
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
1 Front door
2 Name plate on the side cover of the electrical box 2
2 Product Overview
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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
UNIT Unit defined by 6 digits WEIGHT NET/GROSS Net weight and gross weight of the
unit
MODEL Model defined by 12 digits REFRIGERANT CHARGE The amount of refrigerant charged
on site
REFRIGERANT Type of the refrigerant GWP Global warming potential
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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
1 Side panel 8 Electrical box 2
2 Top panel 9 Compressor
3 Filter 10 Heat exchanger
4 Rear door 11 Humidifier
5 Bottom panel 12 EC fan
6 Leveling foot 13 Front door
7 Caster 14 Human machine interface (HMI)
display
2 Product Overview
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Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual