Gree GMV series Manuals

Manuals and User Guides for Gree GMV series. We have 6 Gree GMV series manuals available for free PDF download: Service Manual, Owner's Manual, User Manual

Gree GMV series Service Manual (368 pages)

DC INVERTER VRF PLUS WATER HEATER SOLUTION

Brand: Gree | Category: Air Conditioner | Size: 21 MB

Table of Contents
2
Product
5
Product
6
Models List
6
Common ESP Duct Type Indoor Unit
7
Nits
7
High ESP Duct Type Indoor Unit
8
Cassette Type
10
Single-Side Cassette Unit
11
6Wall Mounted Type
12
Floor Ceiling Type
13
Hydro-Box
13
Water Tank
14
Nomenclature
15
Omenclature of Outdoor Unit
15
Omenclature of Indoor Unit
15
Nomenclature of Hydro-Box
16
Nomenclature of Water Tank
16
Function
17
Product Data of Outdoor
18
Duct Type
19
Ange
44
Correction for Product Capacity
49
Introduction to Capacity Correction
49
Capacity Code
49
Formula of Capacity Correction
49
Coefficient of Correction of Heating Capacity
50
Coefficient of Correction of Water Heating Capacity
50
Principle of Work
52
Length of Single-Pass Equivalence Pipe
52
Change Rate of Cooling Capacity
52
Change Rate of Heating Capacity
52
Flowchart
52
Explanation of Flowchart
53
Control
54
Control of the Unit
55
Integral Control of the Unit
55
Schematic Diagram of Control of the Units
55
Explanation of Schematic Diagram
56
Outdoor Unit System
56
Operation Flowchart
58
Operation Flowchart of Indoor Unit
58
Cooling Operation
59
Dry Operation
60
Heating Operation
61
Water Heating
62
Cooling and Water Heating Operation
63
Heating and Water Heating Operation
64
Operation Flowchart of Outdoor Unit
65
Control Function of the Units
72
The Capacity of Compressor Output
72
Compressor Startup Control
72
Outdoor Fan Control
72
Fan Control under Hypothermy Cooling
73
Fan Control after 3Min
73
Heating/Water Heating Mode
74
Water Heating Mode
74
Defrosting Control
75
Conditions of Startup of Defrosting
75
Conditions of Stop of Defrosting
75
Defrosting
75
Defrosting Flow Chart
76
Control Function of Indoor Unit
76
Cooling Capacity
76
Temperature Control
76
Indoor Fan Action
77
Blowing Residual Cold Air Control
77
Heating Capacity
77
Fan Control
78
Anti Cold Air Operation
78
Blowing Residual Heat Operation
79
Compensation for Heating Temperature
80
Auto Swing Control
80
Anti-Frosting Operating Undercooling and Drying Operation
81
Controling of Indoor Electronic Expansion Valve
81
Reset Control of Indoor Electronic Expansion Valve
81
Controling of Superheating Degree in Cooling Mode
81
Controlling of Supercooling Degree in Heating Mode
82
Ambient Temp. Sensor
82
Evaporator Temp Sensor
82
Address Setting of Indoor Unit
82
Dial-Up Code Table (4 Positions DIP Switch)
83
Function Code Setting
83
Functional Description of Master / Slave Indoor Unit
84
Control Function of Hydro-Box
84
Instant Heating Mode
84
Energy-Saving Heat Retaining Mode
84
Wireless Remote Controller
85
Operation Procedure
86
Normal Procedure
86
Selectable Procedure
86
How to Insert Batteries
87
Wired Controller of Indoor Unit
88
Dimension
89
Every Part of Wired Remote Controller
89
Outline Dimension
89
Installation Dimension
89
Wired Remote Controller
90
Notice for Installation under the Guidance
90
Installation of Wired Controller
90
Hydro Unit
90
Graphic Illustration of Wired Controller LCD
91
Key Functions
95
Display
98
Size of Control Device
98
Installation Schematics of Wired Controller
100
Field Controller
101
Operation View
102
Display View
103
Connection between Region Controller and the Unit
104
Power Cords and Communication Lines for Region Controller
104
Centralized Controller
105
Case Study
105
Instruction to Distribution of Unit and Installation of Equipment
105
Frame Diagram of System Net
106
Instruction to Frame Diagram of System Net
107
Instruction to Installation Procedure of System
108
Integral Design of the Whole System
108
Wiring and Installation
108
Connection of Communication Modules
109
Connection between Communication Module and Indoor and Outdoor Units
109
Welding
110
Triple Adapter
111
Connection of Communication Modules and Centralized Controller
111
System Setting of Centralized Controller
115
Troubleshooting During Installation of Centralized Controller
116
Connection of Communication Lines
117
Address DIP of Communication Module
117
Address Mapping Setting of Centralized Controller
117
Monitoring Software
118
Unction
118
Wiring Diagram
119
Description of above Communication Cables
119
Hardware
120
Introduction to Main Devices
120
R232-R485 Optoelectronic Isolated Converter
120
Optoelectronic Isolated Repeater
121
Communication Module (Standard Parts)
122
Use Instruction to Communication Module
123
Centralized Control Cabinet (User Provided Parts)
124
3-Way Phone Connector(User Provided Parts)
125
Installation
126
Precautions for Installation
127
Key Points of Installation
128
Flow Chart of Installation
130
Tools for Installation
131
Common Tools
131
The Tools Which Can’t be Mixed for Different Refrigerants
131
Selection of Installation Material
132
Refrigerants Pipeline
132
Circulating Pipe
132
Discharge Pipe for Condensate
132
Heat Insulating Materials
133
Power Cord
133
Suspender and Bracket
133
Ommunication Cord
133
Ondensate
133
Installation Schematic Diagram
134
Installation Schematic Diagram of Units with Side Air Outlet
134
Installation Schematic Diagram of Units with Top Air Outlet
135
Skecth Map of Installation
136
Installation of Outdoor Unit
139
Hoisting of Unit
139
Hoisting Method
139
Cautions for Installation of Side Outdoor Unit
140
Cautions for Installation of up Outdoor Unit
140
Selection of Installation Site
141
Dimension and Hole Site
142
Hole Site of Outdoor Unit
142
Installation Dimension of the Unit with Side Air Outlet
143
Installation Dimension of Outdoor Unit
143
Installation Dimension of the Unit with Top Air Outlet
143
Space Dimension for Installation of the Unit Is Shown below
143
Install the Units Back to Back
145
Installation of Indoor Unit
147
Duct Type
147
Installation Space Requirements
151
Installation Demonstration
151
Selection of Style of Return Air
151
Installation of Fresh Air Duct
151
Installation of Air Supply Duct
152
Setting Hole for Maintenance
152
4-Way Cassett Type Unit
153
Dimensions Data
154
Nstallation
154
Check if the Unit Is Horizontal
156
Installing the Drain Hose
157
Drain Stepup Pipe Note
157
The Tightening Torque Needed for Tightening Nut
157
Check the Smoothness of Drain after Installation
158
1-Way Cassett Type Unit
159
Important Notice
159
Clearance Data
160
Hoisting the Main Body
161
Installing Drainage Pipe
161
Notice for Drainage Raising Pipe
162
Ceiling
162
Front Panel Body and Installation
163
Wall Mounted Type
163
Installation the Wall Mounted Type Indoor Unit
164
Install the Drainage Hose
165
Install the Connection Pipes
165
Selection of Installation Location
165
Selection of Installation Location for Air Conditioner Unit
165
Floor Ceiling Type
165
Set the Suspension Bolt
168
Installation of Hydro-Box
170
Dimension of Hydro-Box
170
Applicable to RQ20LA-K.RQ30LA-K
170
Applicable to RQD20LA-M.RQD30LA-M
170
Ydro - Box
170
Wall Mounting Hole
171
Ceiling Mounting
171
Floor Standing
171
Floor Standing and Ceiling Mounting Hole
171
Connecting Pipe between Outdoor Unit and Hydro-Box
174
Connection Requirements of Hydro - Box and Water Tank
174
Installation of Water Tank
175
Cautions of Installation
175
Installation Cautions
175
Installation Requirements of Refrigerant Piping
176
Equivalent Length Is Based on One Y-Type Manifold Pipe Per 0.5M
176
Pecification
176
Units with Capacity between 20Kw and 60 Kw
177
Units with Capacity between 10Kw and 19 Kw
178
Selection of Y-Type Branch Pipe
178
Selection of Diameter
178
Installation of Refrigerant Piping
179
Low Hart of Nstallation
179
Three Principles of Refrigerant Piping Installation
180
Installation of Metal Embedded Pipe
180
Installation of Carriage of Refrigerant Piping
180
Fixing of Horizontal Pipe
180
Management and Machining of Refrigerant Piping
181
Fixing of Vertical Pipe
181
Fixing of Other Points
181
Coil Unwinding
181
Cut·chamfer
182
Pipe Bending
183
Flaring
184
Assemble Copper Pipes
184
Installation Piping
184
Installation of Branch Pipe
185
Connection Schematics for Y-Type Branch Pipe
185
Installation Specifications for Branch Pipe
185
Placement of Branch Pipe
185
Connection of Branch Pipe
186
Welding of Copper Pipe
187
Braze Welding
187
Safety Acknowledgement before Operation
187
Materials for Braze Welding
187
Operation Order
188
Basic Procedures for Welding
188
Cleaning of Portions for Braze Welding
188
Nitrogen-Filled Protection
188
Welding Heating
189
Others
189
Cooling
190
Cleaning of Refrigerant Piping
190
Main Purposes of Cleaning
191
Cleaning Steps
191
Pressure Maintaining and Leak Hunting
191
Pressure Maintaining of Refrigerant Piping
191
Pressurization
192
Check Pressure Drop
192
Leak Check
192
Connection of Thermal Insulation Pipe
193
Thermal Insulation of Branch Pipe
193
Cautions
193
Purposes of Vacuum Pumping
194
Selection of Vacuum Pump
194
Vacuum Pumping
194
Calculation Method for Refrigerant Charging
195
Steps of Refrigerant Charge
195
Installation of Electronic Expansion Valve Parts
197
Direction Requirements
197
Arrow Upward
197
Arrow Downward
197
Installation of Condensate Pipe
198
Pipe Connection
198
Cable Connection of Electronic Expansion Valve Sub-Assembly
198
Final Treatment
198
Material Quality Requirements for Condensate Pipe
198
Distance between Hanger Frames
199
Connection of Drain Elbow
201
Connection of Horizontal Pipe
202
Installation of Drainage Pipe for Different Types of Indoor Unit
202
Use Drainage Pipe and Clamp
202
Cassette Type (Four-Sided Outlet)
203
Wall-Mounted Type
205
Test for Condensate Pipe
206
Requirements of Heat Preservation
207
Installation of Water Pipeline
208
Pipeline between Hydro - Box and Water Tank
208
Connect Outdoor Unit with Hydro-Box by Refrigerants Piping
209
Installation Requirements of Water Pipeline
209
Connecting Pipe between Outdoor Unit and Hydro-Box
209
Electrical Installation
210
Precautions for Electrical Installation
210
Specifications of Power Cord & Circuit Breaker
211
Wiring Sketch Map
211
Connections Among Outdoor Unit, Power of Hydro-Box/Communication Wire
211
Connection Diagram of Outdoor Unit, Hydro-Box and Water Tank
212
Dial-Up of Unit
212
Dial-Up of Indoor Unit Mainboard and Wire Remote Controller
213
Address Code
213
Dial-Up Value
214
Address Code about Capacity
214
Functional Dial Switch S7
215
Functional Description of Function Dial-Up
215
Definition of Heating Capacity of Water Tank
216
Setting of Capacity of Outdoor Unit
217
Debugging of the Unit
218
Preparation for the Debugging
218
Inspection of Cooling System
218
Inspection of Electric System
218
Inspection of Communication System
219
Inspection of Water System
219
Debugging of Cooling Mode
219
Debugging of Heating Mode
219
Debugging of Water Heating
220
Preparation before Debugging
220
Air Discharge Inside the Pipeline
220
Maintenance
221
Routine Work
222
Cleanout of the Water System
222
The Cleanout of Finned Heat Exchanger
222
Daily Maintenance
222
Purpose
222
Anti-Freezing Project in Winter
224
Cautions of Water System
224
Cautions of Outdoor Unit
224
Disassemble the Front Panel of Outdoor Unit
225
Servicing
226
List of Unit Errors
227
List of Error Display on Wired Controller
227
Servicing
227
Error Code of Hydro Unit
228
Error Code of Duct-Type Unit
228
King Series
229
Feng Yun and Feng Xia Series
229
Floor Standing: Lantianshi, Qingliangwangzi, Fengsheng Series
229
Display Code on Digital Tube of Outdoor Mainboard
230
Display of the Number of Indoor Units
230
Flow Chart of Troubleshooting
231
High-Pressure Protection
231
Low-Pressure Protection
232
Exhaust Temperature Protection
233
Compressor Overcurrent Protection
234
Abnormal Overcurrent Error
234
Current Protection
234
Communication Error
236
Water-Full Protection
237
Fault Display
237
Temperature Sensor Error
237
Error with Room Sensor, Tube-Inlet, Tube Middle and Tube-Exit Sensor; Error with Room Sensor
237
Tube - Inlet , Tube Middle and Tube - Exit Sensor and Exhaust
237
No Energization to the Unit and Mainboard
238
PFC Protection
239
IPM Protection
240
Tripping
241
Protection Protection
241
Radiator Overheat Protection
242
Overvoltage Protection of DC Voltage
243
Circuit Diagram
244
Introduction of Major Electrical Elements
244
Wiring Diadram
245
Circuit Diagram of Outdoor Unit
245
Circuit Diagram of Indoor Unit
246
Disassembly and Assembly Procedure of Main Parts
258
Introduction of Main Parts
258
Outdoor Unit
262
The Uni with Side Air Outlet
262
Ntroduction of Utdoor Unit
262
Disassembly and Assembly of 4-Way Valve
264
Disassembly and Assembly of Electronic Expansion Valve
265
Disassembly and Assembly of Liquid Accumulator
266
Disassembly and Assembly of Gas-Liquid Separator
267
Disassembly and Assembly of Oil Separator
269
Disassembly and Assembly of Water Pump of Hydro-Box
270
The Unit with Top Air Outlet
272
Disassembly and Assembly of External Casing
272
Disassembly and Assembly of Compressor
274
Disassembly and Assembly of Fan and Fan Motor
277
Disassembly and Assembly of Electrical Parts Box
279
Disassembly and Assembly of Vapour Liquid Separator
280
Disassembly and Assembly of Indoor Unit
281
Removal and Assembly of Fan Motor
282
Removal and Installation of Drainage Pump
287
Single-Sided Cassette Unit
288
Disassembly and Assembly of Fans and Motor
288
Removal and Wall-Mounted Unit Assembly of Fan Motor
290
Removal and Installation of Motor and Fan
291
Isassembly and 5 Exploded Views and Part List
292
RQD5GA-K,RQD8GA-K Exploded View
298
Utdoor
298
RQ5GB-K,RQ8GB-K Exploded View
300
RQD5GB-K,RQD8GB-K Exploded View
302
RQD30LA-M Exploded View
304
RQ30LA-K Exploded View
306
Indoor Unit_Exploded View and Parts List
308
Ydro Unit Ndoor Nit Xploded View and Arts ist
308
GMV(L)-R40P/Na-K,GMV(L)-R45P/Na-K,GMV(L)-R50P/Na-K
310
Floor Ceiling Type Unit
358

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Product List
9
Combinations of Indoor and Outdoor Units
11
Names of Main Parts
11
Product Working Principle
12
The Range of Production Working Temperature
14
Standard Parts
14
Outdoor Unit Installation
16
Select Installation Position
18
Installation Space Requirements
20
Additional Refrigerant Charging
43
Electrical Installation
47
Electrical Parameters
48
Power Cord Connection
51
Communication Line Connection
52
Communication Address Setting
56
Check Items after Installation
59
Maintenance
72
Drain Pipe
72
Parts Replacement
73
Error Indication
74
After Sales Service
78

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Table of Contents
3
1 Safety Notices (Please be Sure to Abide)

4
2 Product Introduction

7
3 Preparation before Installation

9
- Standard Parts
  9
- Installation Site
  9
- Piping Work Requirements
  16
4 Installation Instruction

17
5 Check Items after Installation and Trial Run

44
- Check Items after Installation
  44
- Trial Run
  44
6 Common Malfunction and Troubleshooting

57
7 Error Indication

58
8 Maintenance and Care

62
- Outdoor Heat Exchanger
  62
- Drain Pipe
  62
- Notice before Seasonal Use
  62
- Maintenance after Seasonal Use
  63
- Parts Replacement
  63
9 After-Sales Service

63

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