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GMV-Q224WM/E-X
GREE GMV-Q224WM/E-X Manuals
Manuals and User Guides for GREE GMV-Q224WM/E-X. We have
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GREE GMV-Q224WM/E-X manual available for free PDF download: Service Manual
GREE GMV-Q224WM/E-X Service Manual (402 pages)
HR DC INVERTER VRF UNITS
Brand:
GREE
| Category:
Inverter
| Size: 36 MB
Table of Contents
Table of Contents
2
Preface
4
Basic Operating Principle
5
Models List
5
Chapter 1 Introduction to Basic Features of Units
5
Internal Piping Design of the Units
6
Piping Diagram of GMV-Q224WM/E-X and GMV-Q280WM/E-X
6
Piping Diagram of GMV-Q335WM/E-X
7
Piping Diagram of GMV-Q400WM/E-X and GMV-Q450WM/E-X
8
Names and Main Functions of Components
8
Basic Parameters of Unit
10
Basic Parameters of ODU
10
Basic Parameters for Mode Exchanger
16
Connection Sketch Map of System
16
One-To-One Mode Exchanger NCHS1C
16
One-To-Two Mode Exchanger NCHS2C
17
One-To-Four Mode Exchanger NCHS4C
17
One-To-Eight Mode Exchanger NCHS8C
17
Electrical Parameters
19
Power Cable Wire Gauge and Circuit Breaker Selection
19
Circuit Diagram
21
Circuit Diagram of GMV-Q224WM/E-X and GMV-Q280WM/E-X
21
Circuit Diagram of GMV-Q335WM/E-X
21
Circuit Diagram of GMV-Q400WM/E-X and GMV-Q450WM/E-X
22
Basic Requirement for Pipe Connection
23
Precautions on Refrigerant Leakage
25
Unit Operating Temperature
26
Installation Safety
26
Chapter 2 Installation
26
Part 1 Engineering Installation Preparation
26
Cooperation between Different Professions
28
Requirements for Cooperation with Civil Engineering
28
Requirements for Cooperation with Decoration Engineering
28
Onsite Review of Design Drawing
30
Construction Organization Process
31
Requirement for Selecting Construction Materials
32
Requirement for Selecting Major Materials
32
Copper Pipe
32
Part 2 Material Selection
32
Insulation Material
33
Communication Cable and Control Cable
33
Power Cable
34
Selection of Communication Wire between Indoor Unit/Wired Controller
34
Connection between Indoor Units and Wired Controllers
34
Place Selection for Installing ODU
35
ODU Dimensions and Installation Hole Size
35
Part 3 Installation Space Requirement
35
Installation Space Requirement for ODU
36
Installation Space Requirements for Triple-Module Unit
37
Installation Space Requirement for Quad-Module Unit
37
Installation Space Requirement for Multiple Odus
38
Monsoons Must be Considered During ODU Installation
38
Installation Space Requirement for Mode Exchangers
43
Dimension of Outdoor Unit and Mounting Hole Position
43
NCHS1C Outline and Installation Dimension
43
NCHS2C Outline and Installation Dimension
43
NCHS8C Outline and Installation Dimension
44
Hole-Drilling for Bolt and Bolt Installation
46
Install the Mode Exchanger Temporarily
47
Check the Level of the Unit
47
Installation Site
48
Pipe Connection
49
Installation Instruction for Silencer
49
ODU Fixing
52
Vibration Reduction for ODU
52
Part 4 Requirements on Foundation Installation
52
Schematic Diagram of Piping Connection
54
Schematic Diagram of Piping Sequence
54
Part 5 Piping Connection
54
Allowable Pipe Length and Drop Height Among Indoor and Outdoor Units
55
Connection Pipe Among Outdoor Modules
57
Connection Sketch Map of Single-Module System
59
Connection Sketch Map of Multi-Module System
59
Size Requirement for Branch Pipe and Piping (Main Pipe)
59
Connecting Method for Indoor Unit with
64
Branch Selection of Indoor Unit of Mode Exchanger
64
Piping Size between Mode Exchanger and Downstream Indoor Unit
64
Precautions on Pipe Direction Design
65
Processing to Refrigerant Pipes
65
Cut-Off and Burring
65
Part 6 Pipe Installation and Insulation
65
Pipe Installation for the Cooling System
65
Pipe Cleaning
66
Pipe Bending
66
Pipe Expanding
66
Flaring
66
Installation of Refrigerant Pipes
67
Operation Sequence
67
Construction of Built-In Metal Fittings
67
Shaping and Fixing of Pipes
67
Flaring Connection
68
Socket Welding
68
Bell Socket Welding
68
Welding Protection
69
Requirements on Manifold Installation
69
Flange Connection
69
Pipe Cleaning by Nitrogen
70
Filter and Drier Installation for the ODU
71
Precautions
73
Installation of the Power Cable
73
Part 7 Electric and Controller Installation
73
Requirements on Power Cable Configuration
74
Installation of the Communication System
77
Connection of Communication Cable Terminals
78
Connection of Communication Cables
78
Connection Methods and Procedure of Communication System
81
Connection of Communication between Indoor and Outdoor Units
81
Connection of Communication between Indoor Unit and Wired Controller
84
One Wired Controller Controlling Multiple Idus
84
Two Wired Controllers Controlling Multiple Idus
85
Connection between the Air Duct Type IDU and Receiver Board
86
Communication Connection for Units with Central Control
87
Air - Tightness Test
88
Part 8: Vacuumization and Desiccation for the Refrigerant System
88
Vacuumization and Desiccation for the System
89
Calculation Method for Perfusing Refrigerant
91
Part 9: Refrigerant Perfusion
91
Method for Perfusing Refrigerant
93
Refrigerant Perfusion During Running
94
Precautions for Construction
95
Function Settings of Odus
95
Chapter 3 Commissioning Operation
95
Part 1 Security Requirements
95
Precautions for the Use of Refrigerants
95
Part 2 Introduction to Unit Functions
95
Unit Capacity DIP Switch
96
Centralized Control Address DIP Switch
96
Fan Emergency Operation DIP Switch
98
Outdoor Fan Static Pressure Setting DIP Switch
99
Reserved Function DIP Switch
99
Master Unit Setting DIP Switch
99
DIP Switch Example
100
System Function Button Operations
101
Introduction to Function Buttons
101
List of Functions
102
Description of Functions
102
A2 Refrigerant Recovery Operation
102
A6 Unit Cooling/Heating Function
103
A7 Outdoor Silent Mode
103
A8 Aftersales Vacuuming Mode
104
N0 Conservation Control
104
Forcible Defrosting Operation
104
Indoor Unit Project Number Offset
104
Function Setting Operations
105
Basic Operations
115
Restoring Factory Settings
116
Necessity of VRF Engineering Commissioning
117
Required Files and Tools for Engineering Commissioning
117
Required Tools for Engineering Commissioning of GREE VRF
117
Part 3 Commissioning Process
117
Engineering Commissioning Procedures
117
Pre-Commissioning Preparations
118
Overall Commissioning Plan
118
Composition of Commissioning Members
118
Pre-Commissioning Check
118
Electrical System Check
119
Check the Input Power
119
Communication System Check
120
Spot Check
121
References for Proper Unit Operation Parameters
140
Chapter 4 Maintenance
142
Part 1 Failure Code Table
142
How to Locate a Faulty IDU Promptly
147
Part 2 Exception and Troubleshooting
147
Exception Analyzing and Troubleshooting
148
Form Analyzing
148
System Faults
156
System Exhaust Temperature Exception
156
Pressure Exception
160
Poor Cooling/Heating Performance
165
“A0” Unit Debug Status
168
“A2” Refrigerant Recovery Operation Status
168
“A3” Defrosting Status
168
“A4” Oil Return Status
168
“A6” Cooling and Heating Function Setting Status
169
“A7” Quiet Mode Setting Status
169
“A8” Vacuum Mode
169
“AH” Heating Status
169
“AC” Cooling Status
170
“AF” Supply Air Status
170
“AE” Manual Refrigerant Charging Status
170
“AJ” Filter Dirty Alarm
170
“AU” Long-Distance Control Emergency Stop Status
171
“Ab” Emergency Stop Operation Status
171
“Ad” Limited Operation Status
171
“B1” Outdoor Ambient Temperature Sensor Error
171
“B2” Defrost Temperature Sensor 1 Error
172
“B3” Defrost Temperature Sensor 2 Error
173
“B4” Malfunction of Liquid Temperature Sensor of Sub-Cooler
174
“B5” Malfunction of Gas Temperature Sensor of Sub-Cooler
175
“C0” IDU and ODU, IDU Wired Controller Communication Error
181
“C3” Main Control and Inverter Fan Drive Communication Error
183
“C4” IDU Missing Error
185
“C5” IDU Project Code Conflict
185
“C6” Outdoor Unit Quantity Inconsistency Warning
186
“C8” Compressor Emergency Operation Status
186
“C9” Emergency Operation Status of Fan
187
“CA” Emergency Operation Status of Module
187
“CH” Rated Capacity Ratio Is too High
187
“CL” Rated Capacity Ratio Is too Low
187
“CC” no Master Controlling Unit Error
188
“CF” Multiple Master Controlling Units Error
188
“CJ” System Address Code Conflict
189
Detecting Circuit Is Abnormal
189
“CP” Multiple Master Wired Controller Error
190
“Cb” IP Address Allocation Overflow
190
“D1” Indoor Circuit Board Error
191
“D3” Ambient Temperature Sensor Error
191
“D4” Inlet Pipe Temperature Sensor Error
192
“D6” Outlet Pipe Temperature Sensor Error
193
“D7” Humidity Sensor Error
193
“D9” Jumper Cap Error
194
“Da” IDU Network Address Error
195
“Dh” Wired Controller Circuit Board Error
195
“DC” Capacity DIP Switch Setting Error
196
“Dl” Air Outlet Temperature Sensor Error
196
“Db” Project Debugging
197
“E1” High Pressure Protection
197
“E3” System Low Pressure Protection
201
“E4” Compressor High Discharge Temperature Protection
203
“F0” ODU Mainboard Error
205
“F1” High Pressure Sensor Error
205
“F3” Low Pressure Sensor Error
206
“F5” Compressor 1 Discharge Temperature Sensor Error
207
“F6” Compressor 2 Discharge Temperature Sensor Error
208
“F7” Compressor 3 Discharge Temperature Sensor Error
209
“F8” Compressor 4 Discharge Temperature Sensor Error
210
“F9” Compressor 5 Discharge Temperature Sensor Error
211
“FA” Compressor 6 Discharge Temperature Sensor Error
212
“FH” Compressor 1 Current Sensor Error
213
“FC” Compressor 2 Current Sensor Error
214
“FL” Compressor 3 Current Sensor Error
215
“FE” Compressor 4 Current Sensor Error
217
“FF” Compressor 5 Current Sensor Error
217
“FJ” Compressor 6 Current Sensor Error
218
“FU” Compressor 1 Shell Top Temperature Sensor Error
220
“Fb” Compressor 2 Shell Top Temperature Sensor Error
220
“H0” Fan Drive Board Error
221
“H1” Fan Drive Board Operation Error
222
“H2” Fan Drive Board Power Supply Voltage Protection
222
“H3” Fan Drive Module Reset Protection
222
“H5” Inverter Fan Overcurrent Protection
223
“H6” Drive IPM Module Protection of Fan
224
“H7” Fan Drive Temperature Sensor Error
225
“H8” Fan Drive IPM High Temperature Protection
226
“H9” Desynchronizing Protection of Inverter Compressor
227
“HC” AC Input Voltage of Drive of Inverter Fan
228
“HH” Fan Drive DC Bus High Voltage Protection
229
“HL” Fan Drive DC Bus Low Voltage Protection
229
“HJ” Failure Startup of Inverter Fan
230
“J0” Other Module Protection
231
“J1” Compressor 1 Overcurrent Protection
232
“J2” Compressor 2 Overcurrent Protection
233
“J3” Compressor 3 Overcurrent Protection
234
“J4” Compressor 4 Overcurrent Protection
235
“J5” Compressor 5 Overcurrent Protection
236
“J6” Compressor 6 Overcurrent Protection
237
“J7” Gas-Mixing Protection of 4-Way Valve
238
“J8” System High Pressure Ratio Protection
239
“J9” System Low Pressure Ratio Protection
240
“L1” Indoor Fan Protection
241
“L3” Water Full Protection
242
“L4” Power Supply Overcurrent Protection
244
“L5” Freeze Protection
244
“L7” no Master IDU
245
“L9” Group-Controlled IDU Quantity Inconsistency
246
“LA” Group-Controlled IDU Series Inconsistency
246
“LC” Mismatch of IDU and ODU Models
247
“N0” System Energy-Saving Operation Setting Status
247
Upper Limit Setting Status of IDU&ODU Capacity Configuration Ratio
247
“N4” Limit Setting Status of Max Output Capacity
247
“N6” Unit Error Inquiry Status
248
“N7” Unit Parameter Inquiry Status
248
“N8” IDU Project Code Inquiry Status
248
“N9” Online IDU Quantity Inquiry Status
248
“Na” Heat Pump Unit
249
“Nh” Heating Only Model Status
249
“Nc” Cooling Only Model Status
249
“Ne” Negative Number Code
249
“Nf” Fan Only Model Status
250
“P0” Compressor Drive Board Error
250
“P1” Compressor Drive Board Operation Error
250
“P2” Voltage Protection of Driving Board Power of Compressor
251
“P3” Compressor Drive Module Reset Protection
251
“P5” Inverter Compressor Overcurrent Protection
252
“P6” Inverter Compressor IPM Protection
253
“P7” Compressor Drive Board Temperature Sensor Error
254
“P8” Compressor Drive IPM High Temperature Protection
255
“P9” Compressor Drive Board IPM High Temperature Protection
256
“PC” Compressor Drive Current Detecting Circuit Error
257
“PH” Compressor Drive DC Bus High Voltage Protection
257
“PL” Compressor Drive DC Bus Low Voltage Protection
258
“PJ” Inverter Compressor Startup Failure
258
“U0” Insufficient Compressor Preheating Time
260
“U2” ODU Capacity DIP Switch/Jumper Cap Setting Error
260
“U3” Power Phase Sequence Protection
260
“U4” Lack of Refrigerant Protection
261
“U6” Valve Error
261
“U8” IDU Pipeline Error
262
“U9” ODU Pipeline Error
262
“UC” Setting of Master IDU Is Done
263
“UL” Compressor Emergency Operation DIP Switch Error
263
“UE” Auto Charging of Refrigerant Is Invalid
264
Poor Cooling and Heating Performances
264
Cautions on Controller AP1 Replacement
266
Cautions on ODU AP1 Replacement
266
Distinguishing Master Module from Slave Module
266
Part 3 Key Parts Maintenance
266
Compressor Replacement and Cautions
267
Cautions on Replacement of Slave ODU AP1
267
Determining Compressor Fault
267
Oil Solenoid Valve
271
Remove Faulty Compressors
277
System Check
286
Fill Lubricant
286
Cautions on Compressor Drive Replacement
289
Assembling and Disassembling Key Parts of Odus
292
Assembly and Disassembly of Mode Exchanger
302
Common Parameter Lists
304
R410A Refrigerant Pressure / Saturation Temperature List
304
Resistance / Temperature Lists of Temperature Sensors
304
Voltage List of 20 Kω Pipeline Temperature Sensors
306
Voltage List of 50 Kω Discharge Temperature Sensors
307
Voltage / Pressure Lists of Pressure Sensors
309
High-Pressure Sensor
309
Low-Pressure Sensor (R410A)
310
Exploded Views and Spaer Part List
312
Chapter 5 Remote Control
321
Part 1 Engineering Debugger
321
Overview
321
System Networking
322
Composition of System Network
322
Hardware
323
List of Parts
323
USB Data Converter
323
Appearance
323
Leds and Interfaces
324
COM Interface Board
325
USB Data Line
325
Connecting Line
325
Using Debugger
326
Major Functions
326
One-Click Engineering Debug
326
All-Round Monitor and Health Analysis
326
Engineering Debug
332
Controlling Units
337
Other Functions
339
Capturing Screen
339
Searching for Database Files
340
Changing Pressure Value
341
Saving Multi-System Data
342
Changing Database Saving Path and Rebuilding Database
343
Playback
343
Software Debug
345
Debug Flowchart
345
Troubleshooting
345
Part 2 Remote Control
346
Network Topology of Gree CAC Remote Monitoring System
347
Composition of the System Network
349
Modbus Gateway
350
Power Supply Interfaces
351
Hardware Installation
351
Communication System Installation
352
Hardware Debug
355
DIP Switch
355
Structural Drawing of the DIP Switches
355
Function DIP Switch-CAN Bus Matched Resistance Setting
356
Function DIP Switch-RS485 Bus Matched Resistance Setting
357
Function DIP Switch-First IDU No. Setting
357
Digital Inputs and Outputs
358
Communication Debug
359
Introduction of Optoelectronic Isolated Converter
360
Function Introduction
361
Interfaces and Leds
361
Dimensions
361
Cautions on Installation
362
Function of Optoelectronic Isolated Repeater
362
Software
365
Remote Monitoring System Debug
383
Cooling System Debug
383
Communication Debug between Modbus Gateways and Air Conditioning Units
383
DIP Switch Setting for Modbus Gateways
384
Enable BAS Manager
385
Hardware Faults
392
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