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GMV-120WL/A-T
GREE ELECTRIC GMV-120WL/A-T User Manual
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DC INVERTER VR
F SYSTEM II
SERVICE MANU
AL
(R410A)
2
Table of Contents
Default Chapter
2
Default Chapter
2
Table of Contents
2
Product List
5
Nomenclature of Outdoor Units
5
Product Features
6
General Introduction
6
Specifications
7
Operation Range
7
Product Capacity Correction
8
Correction Factor of Indoor and Outdoor Temperature
8
Correction Factor of Pipe Length and Height Difference
8
Principal of Operation
9
Remote Monitoring System
12
Interpretation on the Schematic Diagram
12
Units' Control
12
General Introduction
12
Schematic Diagram of Units' Control
12
Monitoring Software
13
Connection of Computer and Units
13
Function Introduction
13
Gree USB Data Converter
14
Parts Introduction
14
Operation Instruction
15
Board Connection Wire
16
Communication Board
16
Communication Cord
16
USB Wire
16
Computer Configuration
17
Software Installation
17
Button Graphics
18
CD Playing
18
Installation Flowchart
18
Installation Process
19
Data Monitoring
33
Project Debugging
38
Control Units
41
Capture Screen
43
Other Functions
43
Conversion of Pressure Value
44
Search for Database Folder
44
Database Saving of Multiple Systems
45
Change Database Saving Path and Rebuild Database
46
Usage of USB Converter
47
Engineering Installation Preparation and Notice
57
Installation Key Points and Importance
57
Installation Notice
57
Installation Materials Selection
58
Refrigerant Piping
58
Communication Cable and Control Cable
59
Condensate Water Pipe
59
Insulation Material
59
Installation of Outdoor Unit
60
Carrying and Installing Outdoor Unit
60
Check before Installation
60
Hanger Rod and Support
60
Installation Notices
60
Power Cable
60
Selection of Installation Site
60
Fixing and Damping of Unit
61
Installation Space Requirement
61
Outline Dimension and Position of Installation Hole
61
Debugging &Maintenance
63
Preparation for Debugging
63
Parameters Reference Value for the Normal Operation of Unit
67
Malfunction List for the Wired Controller
68
Status Display Table for Indicators on Main Board of Outdoor Unit
68
Troubleshooting
70
Communication Malfunction
70
High Pressure Protection
71
Low-Pressure Protection
72
Discharge Temperature Protection
73
Mafunction of Temperature Sensor
74
Malfunction of Sensor
74
Unit and Main Board Can’t be Energized
74
Failure Start-Up
75
Drive IPM Overtemperature Protection for Compressor
75
Desynchronizing Protection for Inverter Compressor
76
Failure Startup for Inverter Compressor
76
Loop Malfunction of Driven Charging for Compressor
77
Malfunction of Memory Chip for Inverter Compressor
77
Overcurrent Protection for Inverter Compressor, IPM Module Protection
78
High Pressure Protection for Driven DC Bus Bar of Compressor
78
AC Current Protection for Inverter Compressor
79
Power Distribution of Unit
80
Main Electric Parts
80
Circuit Diagram
81
Removal of Parts
83
Key Parts
83
Removal of Key Parts
85
Common Maintenance
96
Vacuum Drying for the System
96
Selection Requirement for the Vaccum Pump
96
Fill and Charge Refrigerant
96
Calculation of the Amount of Additional Refrigerant
97
Refrigerant Quantity of Outdoor Unit before Delivery
97
Airtightness Test
99
Exploded View of Unit and Parts’ List
100
Exploed View for Outdoor Unit and Parts' List
100
Debugging of Unit
63
4
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GREE ELECTRIC GMV-120WL/A-T Specifications
General
Brand
GREE ELECTRIC
Model
GMV-120WL/A-T
Category
Air Conditioner
Language
English
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