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DC Inverter Multi VRF
Gree DC Inverter Multi VRF User Manual
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1
DC INVER
TER MUL
TI
VRF
Service Manual
（
T1/R410A/50Hz
）
GREE ELECTRIC
APPLIANCES INC. OF
ZHUHAI
2
Table of Contents
Default Chapter
2
Table of Contents
2
Product
5
Models List
5
Outdoor Unit
5
Indoor Unit
6
Nomenclature
11
Nomenclature of Outdoor Unit
11
Nomenclature of Indoor Unit
11
Function
12
Product Data
13
Product Data of Outdoor
13
Product Data of Indoor
15
Operation Range
40
Piping Diagram
41
Cooling Only
41
Heat Pump
42
Control
44
Operation Flowchart
44
Cooling/Dry Operation
45
Heating Operation
46
Main Logic
47
Control Function of Outdoor Unit
47
Wireless Remote Controller
62
Wired Controller
65
Operation and Display View
65
Dimension
65
Installation
66
Mini Centralized Controller (Region Controller)
67
Function
67
Operation View
68
Display View
69
Connection between Controller and Unit
70
Centralized Controller
71
Function
71
Operation View
71
Display View
73
Communication Network Connection
74
Case Study
75
Monitoring Software
88
Function
88
Connection between the Computer and the Unit
88
Wiring Diagram
89
Hardware
90
Installation
97
Precautions for Installation
97
Key Points of Installation
98
Flow Chart of Installation
100
Installation of Outdoor Unit
101
Cautions for Installation of Side Discharge Outdoor Unit
101
Selection of Installation Site
101
Dimensions Data
102
Installation Space Requirements
102
Installation of Indoor Unit
105
Duct Type
105
4-Way Cassett Type Unit
112
Floor Ceiling Type
118
Wall Mounted Type
123
1-Way Cassett Type Unit
125
Cassette Type Indoor Unit
130
Important Notice
131
Electrical Wiring
136
Installation Requirements of Refrigerant Piping
141
Specification of Refrigerant Pipe
141
Allowable Length and Height Differences of the Refrigerant Piping between the Indoor and Outdoor Units
141
Size of Connection Pipe
141
Installation of Refrigerant Piping
143
Flow Chart of Installation
143
Three Principles of Refrigerant Piping Installation
143
Installation of Metal Embedded Pipe
144
Installation of Carriage of Refrigerant Pipin
144
Management and Machining of Refrigerant Piping
145
Installation of Refrigerant Piping
149
Welding of Copper Pipe
151
Cleaning of Refrigerant Piping
156
Pressure Maintaining and Leak Hunting
158
Heat Preservation of Refrigerant Piping
159
Vacuum Pumping
160
Refrigerant Charge
161
Installation of Electronic Expansion Valve Assy
163
Direction Requirements
163
Installation of Condensate Pipe
165
Material Quality Requirements
165
Key Points for Installation
165
Installation of Drainage Hose for Different Types of Indoor Unit
169
Test for Condensate Pipe
173
Requirements of Heat Insulation
174
Electrical Installation
175
Precautions for Electrical Installation
175
Specifications of Power Cord & Circuit Breaker
175
Wiring Sketch Map
175
Dial-Up
176
Maintenance
182
List of Unit Errors
182
List of Error Display on Wired Controller
182
Display Code on Digital Tube of Outdoor Mainboard
185
Display of the Number of Indoor Units
185
Flow Chart of Troubleshooting
186
Wiring Diadram
195
Outdoor Unit
195
Indoor Unit
196
Disassembly and Assembly Procedure of Main Parts
205
Removal and Assembly of Outdoor Unit
205
Removal and Assembly of Indoor Unit
212
Exploded Views and Part List
235
Exploded Views and Parts List of Outdoor Unit
235
Exploded Views and Parts List of Indoor Unit
238
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Gree DC Inverter Multi VRF Specifications
General
Brand
Gree
Model
DC Inverter Multi VRF
Category
Air Conditioner
Language
English
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