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GMV-24WL/C-T
Gree GMV-24WL/C-T Service Manual
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GREE
DC Inverter Side Discharge VRF
Ⅱ
for North
America
39
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41
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Table of Contents
Default Chapter
2
Table of Contents
2
Product
4
Product List
5
Product Features
5
General Introduction
5
Super High Energy Efficiency
5
New Generation CAN Bus Communication
6
Long Connection Pipe
6
Wide Operation Range
6
Fine Sound Quality
6
Specifications
6
Outdoor Unit
6
Operation Range
8
Product Capacity Correction
8
Instruction of Product Capacity Correction
8
Capacity Code
8
Capacity Correction Formula
9
Rated Capacity of Outdoor Unit
9
Correction Factor of Indoor and Outdoor Temperature
9
Correction Factor of Pipe Length and Height Difference
9
Principal of Operation
10
Control
12
Interpretation on the Schematic Diagram
13
Schematic Diagram of Units' Control
13
Units’ Control
13
Operation Flow Chart
14
Operation Flow Chart of Indoor Unit
14
Control Functions of Outdoor Unit
15
Operation Flow Chart of Outdoor Unit
15
Unit Control Functions
15
Wired Controller
16
Control Panel
16
Control Functions of Indoor Unit
16
Installation and Removal
19
Installation Dimensions
19
Installation Method
19
Removal Method
20
Connection of Communication Cord
20
Removal of Wired Controller
20
One Wired Controller Controls Multiple Indoor Units Simultaneously
21
Two Wired Controllers Control Multiple Indoor Units Simultaneously
21
Remote Controller
22
Remote Controller YAP1F
22
Button Name and Function Introduction
22
Remote Controller YV1L1
23
Monitoring Software
24
Function Introduction
24
Connection of Computer and Units
24
Parts Introduction
25
List of Parts
25
Gree USB Data Converter
25
Functions Introduction
25
Operation Instruction
26
Power LED
26
Communication Leds
26
USB Interface
26
Installation Notice
27
Communication Board
27
Communication Cord
27
USB Wire
27
Software Introduction
27
Comprehensive Monitoring
28
Real-Time Control
28
Replay History
28
Computer Configuration
28
Button Graphics
29
Installation Process
30
Install .Net Framework 4.0
30
Install Gree Debugger
35
Install USB Converter Driver
38
Install Gree USB Data Converter
39
Data Monitoring
44
Project Debugging
49
Control Units
51
Other Functions
53
Capture Screen
53
Search for Database Folder
54
Conversion of Pressure Value
55
Database Saving of Multiple Systems
56
Change Database Saving Path and Rebuild Database
57
Usage of USB Converter
58
Installation
66
Engineering Installation Preparation and Notice
67
Installation Key Points and Importance
67
Installation Materials Selection
68
Refrigerant Piping
68
Material Requirement
68
Appearance Requirement
68
Condensate Water Pipe
69
Insulation Material
69
Communication Cable and Control Cable
69
Power Cable
70
Hanger Rod and Support
70
Installation of Outdoor Unit
70
Check before Installation
70
Selection of Installation Site
70
Carrying and Installing Outdoor Unit
71
Installation Notices
71
Fixing and Damping of Unit
71
Outline Dimension and Position of Installation Hole
71
Installation Space Requirement
73
Installation of Electronic Expansion Valve Assy (Unit with External EXV)
73
Dimension of Pipe (Main Pipe) from ODU to the 1St Indoor Branch
75
Dimension of Outdoor Connection Pipe
75
Selection of Indoor Branches
76
Dimension of Pipe between Indoor Branches
76
Dimension of Pipe between Indoor Branch and IDU
77
Installation of Refrigerant Pipeline
73
Allowable Length and Height Difference of Connection Pipe
73
Installation of Connection Pipe
78
Flaring Process
78
Pipe Bending
78
Indoor Pipe Connection
79
Outdoor Pipe Connection
79
Installation of Y-Type Branch
81
Y-Type Branch
81
Thermal Insulation for Pipeline
82
Support and Protection of Pipeline
83
Disassembly of Compressor Feet
83
Vacuum Pumping, Refrigerant Adding
83
Refrigerant Adding
84
Refrigerant Quantity of Outdoor Unit before Delivery
84
Calculation of the Amount of Additional Refrigerant
84
Calculation Example
85
Liquid Pipe
85
Total Length of each Liquid Pipe
85
Electric Wiring
87
Wiring Diagram
87
Connection of Power Cord and Communication Wire
87
Connection of Power Cord and Communication Wire for IDU and ODU
87
Power Cable Wire Gauge and Circuit Breaker Selection
88
Debugging of Unit
89
Preparation for Debugging
89
Debugging of Unit
90
Description of each Stage of Debugging Progress
91
Parameters Reference Value for the Normal Operation of Unit
96
Maintenance
98
Malfunction List for the Wired Controller
99
Status Display Table for Indicators on Main Board of Outdoor Unit
99
Troubleshooting Principle
103
Communication Malfunction
103
High Pressure Protection
104
Low-Pressure Protection
105
Discharge Temperature Protection
106
Mafunction of Temperature Sensor
107
Malfunction of Sensor
107
Unit and Main Board Can’t be Energized
107
Failure Start-Up
108
Drive IPM Overtemperature Protection for Compressor
108
Desynchronizing Protection for Inverter Compressor
109
Failure Startup for Inverter Compressor
109
Loop Malfunction of Driven Charging for Compressor
110
Malfunction of Memory Chip for Inverter Compressor
110
Overcurrent Protection for Inverter Compressor
111
IPM Module Protection
111
High Pressure Protection for Driven DC Bus Bar of Compressor
111
AC Current Protection for Inverter Compressor
112
Communication Malfunction between Main Contoller
112
Driver of Inverter Compressor
112
Power Distribution of Unit
113
Main Electric Parts
113
Circuit Diagram
114
Removal of Parts
116
Key Parts
117
Removal of Key Parts
118
Removal Operation for Panel
118
Removal Operation for Blade
120
Removal Operation of Compressor
121
Removal Operation for 4-Way Valve
124
Remival Operation for Eletronic Expansion Valve
125
Removal Operation of Gas Liquid Separator
126
Removal Operation for Plate Heat Exchanger
127
Common Maintenance
138
Vacuum Drying for the System
138
Selection Requirement for the Vaccum Pump
138
Operation Procedure and Notices for Vacuum Drying
138
Exploded View of Unit and Parts’ List
139
Other manuals for Gree GMV-24WL/C-T
Owner's Manual
31 pages
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Gree GMV-24WL/C-T Specifications
General
Brand
Gree
Model
GMV-24WL/C-T
Category
Inverter
Language
English
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