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Liebert CRV4 Series
Vertiv Liebert CRV4 Series User Manual
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Liebert
® CRV4 Series
User Manual
Pr
ecision Air Conditioning
2
Table of Contents
Default Chapter
6
Table of Contents
6
Chapter 1: Introduction
12
Product Introduction
12
Model Nomenclature
12
Product Appearance
14
Main Components
14
EC Compressor
14
Evaporator
14
Electronic Expansion Valve (EEV)
15
Electrode Humidifier
15
EC Fan
15
Electrical Heater
15
Sight Glass
15
Filter Dryer
15
Display Screen
15
Remote Monitoring Software
15
Options
16
Air Pressure Difference Switch
16
Water Leakage Detection Kit
16
Remote Temperature Sensor Kit
16
Monitoring Card
16
Dual Power Module
16
Chapter 2: Installation
17
Equipment Room Consideration
17
Installation Space Requirements
18
Maintenance Space Requirements for Liebert CRV4
18
Environmental Requirements
19
Operating Environment
19
Storage Environment
19
Refrigerant Charging Requirement
20
Transportation, Unpacking and Inspection
20
Transportation and Movement
20
Unpacking
21
Inspection
22
Chapter 3: Mechanical Installation
23
System Arrangement During Installation
23
General Arrangement
23
System Installation Mode
25
Mechanical Parameters
27
Base Plate Piping Location and Dimensions
28
Top Plate Piping Locations & Dimensions
29
Location of Front Air Outlets
30
Installation of the Indoor Unit
31
Leveling the Cabinet
31
Removing the Leveling Feet and Fastening
32
Assembly of the Cabinet Parts
33
Unit Piping Installation
34
Removing Filter Net
35
Connecting the Condensate Water Drainage Piping of the Indoor Unit
35
Electrode Humidifier Water Inlet Piping Connection
37
Connection of the Copper Piping between the Indoor and Outdoor Units
38
Installing Long Piping Kit (for Site Installation)
41
Check Valve Installation
42
Installing the Solenoid Valve
42
Charging Refrigerant and Adding Lubricant Oil
44
Charging Refrigerant
44
Adding Lubricant Oil
45
Removing Transportation Fastener and Vibration Absorber
46
Sealing the Holes of the Top Plate of the Cabinet
48
Checklist for Completed Mechanical Installation
49
Chapter 4: Electrical Installation
50
Task Introduction and Notes
50
Cables to Connect On-Site
50
Installation Notes
50
Liebert CRV4 Cable Connection of Indoor Unit
51
Electrical Port Location of the Indoor Unit
51
Connecting the Power Cable of the Indoor Unit
52
Connecting the Control Cables
53
Water-Under-Floor Sensor
54
SIC Card
54
Rack Temperature Sensor
54
Remote Shutdown
56
Control Signals of the Outdoor Unit
56
External General Alarm
56
Connecting the Solenoid Valve of the Long Piping Kit- (Optional for Site Installation)
56
Teamwork Control
56
Electrical Installation Checklist
57
Chapter 5: Start-Up Commissioning
58
Location of Mcbs
58
Power-On Commissioning
59
Preparation before Commissioning
59
Commissioning Procedures
59
Inspection after Commissioning
61
Chapter 6: Micro-Controller (Color Screen)
62
Features
62
Appearance
62
Control Screen
63
Main Screen
63
Main Interface Control Mode
66
Password Interface
67
Menu Structure
68
Main Menu
68
Run Information
69
Alarm Information
72
Temperature and Humidity
73
Parameter Setting
75
Graph
79
About
79
Chapter 7: Micro-Controller (Text-Screen)
80
Features
80
Appearance
80
Graphic Color Screen
81
Control Buttons
82
Function Description
82
Operational Examples
83
Control Screen
84
Startup Screen
84
Main Screen
84
Password Interface
85
Menu Structure
86
Main Menu
86
Run Information
87
Alarm Information
89
Temperature & Humidity Settings
91
Parameter Settings
91
Alarm Set
92
Humidifier Set
93
Teamwork Set
93
ESP Set
93
Display Set
94
Password Set
94
Help
95
Chapter 8: System Operation and Maintenance
96
Routine Maintenance & Inspection Items (Monthly)
96
Routine Maintenance and Inspection (Semi-Annually)
97
Self-Diagnosing Functions
98
Maintenance of Electrical Control Utilities
98
Maintenance of Electrical Parts
98
Maintenance of Control System
99
Water-Leak-Detector
99
Air Filter Maintenance
101
Fan Kit Maintenance
101
General Maintenance for the Electrode Humidifier
103
Operating Guidelines for the Electrode Humidifier
103
Replacing Humidifier
104
Electrical Heater Maintenance
106
Refrigerating System Maintenance
107
Suction Pressure
107
Discharge Pressure
107
Electronic Expansion Valve (EEV)
107
Air-Cooled Condenser
108
Compressor
108
Drainage System Maintenance
110
Chapter 9: Troubleshooting
112
Troubleshooting of the Fan
112
Troubleshooting of the Heating System
113
Troubleshooting of Compressor and Cooling System
113
Appendix I: Circuit Diagram of Model CR025, CR035 and CR045
116
Appendix II: Display Menu Structure of the Screens
119
Appendix III: Alarm Menu Control Table
121
Appendix IV: Routine Maintenance Inspection Items
122
(Monthly)
122
Appendix V: Routine Maintenance Inspection Items
122
(Semi-Annually)
123
Appendix VI: Table Names and Content of Harmful
125
Substances in Products
125
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Vertiv Liebert CRV4 Series Specifications
General
Brand
Vertiv
Model
Liebert CRV4 Series
Category
Air Conditioner
Language
English
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