Gree LSQWRF35VM/NhA-M Manuals

Manuals and User Guides for Gree LSQWRF35VM/NhA-M. We have 3 Gree LSQWRF35VM/NhA-M manuals available for free PDF download: Service Manual, Installation, Start-Up And Maintenance Manual

Gree LSQWRF35VM/NhA-M Service Manual (120 pages)

A series modular air-cooled chiller (heat pump)

Brand: Gree | Category: Chiller | Size: 30.94 MB

Table of Contents
2
1 Product Information

7
- Introduction
  7
  - Lineup
    7
  - Nomenclature
    7
  - Product Features
    8
  - Nominal Operating Conditions
    8
  - Operation Range
    9
- Performance Correction Curves
  9
- Working Principle
  10
- Technical Parameters
  14
  - Electrical Parameters
    14
  - Performance Parameters
    15
  - Scope of Supply
    17
2 Unit Control

19
- Schematic Diagram
  19
- Operation Flowchart
  21
  - Cooling
    21
  - Heating
    22
- Key Control Logics
  23
  - Cooling Control
    23
  - Heating Control
    23
  - Control to the Compressor
    24
  - Control to the Fan
    24
  - Control to the 4-Way Valve
    24
  - Control to the Water Pump
    24
  - Control to the Electric Expansion Valve
    24
  - Protection
    24
- Introduction to Controller
  25
- Smart Management System
  25
3 Unit Installation

30
- Installation Flowchart
  30
- Preparations before Installation
  31
  - Precautions for Installation
    31
  - Importance of Installation
    32
- Installation Instructions
  33
  - Outline Dimensions
    33
  - Precautions for Installation
    37
  - Installation Environment
    37
  - Installation and Service Space
    37
  - Installation Foundation
    38
  - Handling and Lifting
    38
  - Placement of the Main Unit
    39
- Piping and Insulation
  39
- Electrical Connection
  46
  - Safety Precautions
    46
  - External Connection
    46
  - Specification of Power Supply
    51
  - Wiring of the Electric Control Cabinet
    51
  - Field Wiring
    53
  - Networking and Wiring between Units
    55
  - Electric Wiring Digram
    58
  - Jumpers
    65
4 Test Operation, Troubleshooting and Maintenance

67
- Commissioning
  67
- Troubleshooting
  70
  - Diagnostics
    70
  - Flow Chart of Troubleshooting
    72
- Power Distribution
  78
  - Power Distribution Logic
    78
  - Introduction to Main Electric Elements
    78
  - Main Board
    79
- Replacement of Main Parts
  81
  - Brief Introduction
    81
  - Replacement Instructions
    82
- Routine Maintenance
  103
  - Repairs to Refrigerant Leakage
    103
  - Air Removal
    104
- Exploded Views and Part Lists
  105
- Maintenance
  117
  - Requirements for Maintenance
    117
  - Freeze Protection in Winter
    119

Gree LSQWRF35VM/NhA-M Service Manual (98 pages)

Brand: Gree | Category: Chiller | Size: 28.72 MB

Table of Contents
2
Product Information
7
Introduction
7
Lineup
7
Nomenclature
7
Product Features
8
Nominal Operating Conditions
8
Operation Range
9
Performance Correction Curves
9
Working Principle
10
Technical Parameters
12
Electrical Parameters
12
Performance Parameters
13
Scope of Supply
15
Unit Control
17
Schematic Diagram
17
Operation Flowchart
19
Cooling
19
Heating
20
Key Control Logics
21
Cooling Control
21
Heating Control
21
Control to the Compressor
22
Control to the Fan
22
Control to the 4-Way Valve
22
Control to the Water Pump
22
Control to the Electric Expansion Valve
22
Protection
22
Introduction to Controller
23
Smart Management System
23
Long-Distance Monitoring/Bms Interface
23
Network of the Long-Distance Monitoring System
23
Hardware
24
Model Selection Instructions
25
Unit Installation
27
Installation Flowchart
27
Preparations before Installation
28
Precautions for Installation
28
Importance of Installation
29
Installation Instructions
30
Outline Dimensions
30
Precautions for Installation
32
Installation Environment
32
Installation and Service Space
32
Installation Foundation
33
Handling and Lifting
33
Placement of the Main Unit
34
Piping and Insulation
34
Installation of the Water System
34
Requirements on Piping
36
Installation of the Expansion Tank
38
Installation of Condensate Pipes
39
Electrical Connection
41
Safety Precautions
41
External Connection
41
Specification of Power Supply
45
Wiring of the Electric Control Cabinet
45
Field Wiring
47
Networking and Wiring between Units
49
Jumpers
51
Test Operation, Troubleshooting and Maintenance
53
Commissioning
53
Flowchart of Commissioning
53
Safety Precautions for Commissioning
53
Preparation before Commissioning
53
Check before Commissioning
53
Check for Initial Run
54
Troubleshooting
56
Diagnostics
56
Flow Chart of Troubleshooting
58
Power Distribution
64
Power Distribution Logic
64
Introduction to Main Electric Elements
64
Main Board
65
Replacement of Main Parts
67
Brief Introduction
67
Replacement Instructions
68
Routine Maintenance
87
Repairs to Refrigerant Leakage
87
Air Removal
88
Exploded Views and Part Lists
89
Maintenance
95
Requirements for Maintenance
95
Freeze Protection in Winter
97

Gree LSQWRF35VM/NhA-M Installation, Start-Up And Maintenance Manual (52 pages)

Inverter Modular Air-cooled Chiller

Brand: Gree | Category: Heat Pump | Size: 9.11 MB

Table of Contents
3
Safety Notices (Please be Sure to Abide)
5
General Introduction
10
Product Features
10
Principle Diagrams
11
Operation Range
14
Outline Dimensions
14
Installation Instructions
16
Pre-Check
16
Acceptance Check
16
Handling and Lifting
16
Installation Foundation and Service Space
17
Vibration Reduction
20
Removal of Glands on Rubber Pads before Compressor Startup
20
Installation of the Water System
21
Introduction to the Display Panel
23
Electric Wiring
23
External Wiring of the Electric Control Cabinet
23
Specification of Power Supply
28
Wiring of the Electric Control Cabinet
28
Filed Wiring
30
Networking and Wiring between Units
32
Setup of DIP Switches on the Motherboard
34
Jumpers
35
Commissioning and Maintenance
35
Check before Startup
35
Requirements on Water Quality and Cleaning
35
Trial Run
37
Routine Startup/Shutdown
37
Maintenance to the Main Parts
38
Maintenance During Long-Term Downtime
38
Startup after Long-Term Shutdown
38
Parts Replacement
38
Safety Operation of Flammable Refrigerant
39
Refrigerant Charging
40
Removal of the Compressor
40
Freeze Protection
41
Routine Maintenance
41
Precautions
42
Troubleshooting and After-Sales Service
47
Troubleshooting Measures
47
After-Sales Service
49
Appendix A: Inspection Records Prior to Commissioning
50
Appendix B: Trial Run and Commissioning Records
51

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