Gree Versati III GRS-CQ12PdG/NhH2-M Manuals

Manuals and User Guides for Gree Versati III GRS-CQ12PdG/NhH2-M. We have 2 Gree Versati III GRS-CQ12PdG/NhH2-M manuals available for free PDF download: Service Manual, Owner's Manual

Gree Versati III GRS-CQ12PdG/NhH2-M Service Manual (160 pages)

All-in-one Type Air To Water Heat Pump

Brand: Gree | Category: Heat Pump | Size: 14 MB

Table of Contents
2
Product Data
5
Lineup
5
Nomenclature
5
Product Features
6
Operating Principle
9
Technical Data
9
Explosive Views and Part Lists
35
Supply Scope
57
Model Selection
58
General
58
Power Supply
58
Operation Conditions
58
Flowchart of Model Selection
58
Design Principle
59
Selection of the Underfloor Coils
59
Calculation of Unit Load for Floor Heating
59
Selection of Tube Spacing of the Underfloor Coils
59
Selection of Loop Quantity of Coils for each Room
59
Quantity and Location of the Water Manifold
60
Design Requirements on Loop Quantity for Circulation Water
60
Requirements on Installation of the Water Manifold
62
Selection of FCU
62
FCU Type Selection
62
Matching of Capacity
62
Selection of the Water Tank
63
Specifications of the Water Tank
63
Volume Selection of the Water Tank
63
Examples for Model Selection
64
General Introduction to the Example Project
64
Heat Load Calculation
64
Model Selection
65
Control
66
Integral Control Concept
66
Control Principle Diagram
66
Main Board
66
Control Flowchart
69
Main Control Logics
69
Cooling
69
Heating
70
Water Heating
70
Shutdown
71
Control to the Compressor
71
Control to the Fan
71
Control to the 4-Way Valve
71
Control to the Water Pump
71
Control the Electronic Expansion Valve
71
Protection Control
72
Control Panel
72
General
72
Operation Instructions
75
Intelligent Control
102
Unit Installation
110
Installation Guides
110
Installation Position
110
Matters Need Attention
111
Field Supplied Pipes and Valves
111
Service Tools
112
Installation Instructions
113
Installation Examples
113
Pre-Installation
113
Selection of Installation Location
114
Installation of Outdoor Unit
114
Installation of Indoor Unit
120
Outline Dimension of Indoor Unit
121
Connection of Pipeline
126
Requirements on Water Quality
128
Electric Wiring
129
Wiring of the Terminal Board
134
Wiring of the 2-Way Valve
136
Wiring of Other Thermal
137
Wiring of the Gate-Controller
138
Wiring of the Remote Air Temperature Sensor
139
Wiring of the Thermostat
140
Wiring of the Control
141
Commissioning and Trial Run
142
Check before Startup
142
Trial Run
142
Test Operation & Troubleshooting & Maintenance
144
Precheck
144
Check for Wiring
144
Check for the Water System
144
Check for the Communication System
144
Trial Run
144
Error Code List
144
Flow Chart of Troubleshooting
146
Compressor High-Pressure Protection E1
146
Commpressor Low- Pressure Protection E3
147
Compressor Discharge Temp Protection E4
147
Overload Protection of Compressor or Driver Error
148
DC Fan Error EF
148
Temperature Sensor Error
149
Communication Malfunction E6
149
Capacity Switch Error (Code:"C5")
150
Diagnosis of Drive
150
Diagnosis Flowchart of Drive of Single-Phase Unit and Three-Phase Unit
150
Daily Maintenance and Repair
154
Daily Maintenance
154
Troubleshooting
154
Repair
155

Gree Versati III GRS-CQ12PdG/NhH2-M Owner's Manual (58 pages)

Air-to-water Heat Pump

Brand: Gree | Category: Heat Pump | Size: 24 MB

Table of Contents
3
Safety Notices (Please be Sure to Abide )
5
Diagram of the Operating Principle
12
Operating Principle of the Unit
12
Nomenclature
14
Installation Example
15
Main Components
16
Indoor Unit
16
Outdoor Unit
17
Installation Guideline of Outdoor Unit
19
Instruction to Installation
19
Installation of Outdoor Unit
19
Installation of Indoor Unit
22
Select Installation Location of Indoor Unit
22
Space Requirements for Installation
23
Outline Dimension of Indoor Unit
23
Precautions on Installation of Indoor Unit
24
Water Volume and Pump Capacity (with Pump)
25
Water Volume and Expansion Vessel Pressure
26
The Method of Calculating the Charging Pressure of Expansion Vessel
26
Selection of Expansion Vessel
27
Connection of Pipelines
28
Connection of Outlet Pipe for Indoor & Outdoor Unit
28
Installation of Protective Layer on Connection Pipe
28
Remote Air Temperature Sensor
30
Thermostat
31
Way Valve
31
Way Valve
32
Other Auxiliary Heat Sources
32
Gate-Controller
33
Charging and Discharging of Refrigerant
33
Refrigerant Collecting
34
Handling of the Unit
35
Wring Diagram
36
Control Board
36
Electric Wiring
42
Commissioning
50
Check before Startup
50
Test Run
51
Daily Operation and Maintenance
52
Recovery
53
Decommissioning
53
Safety Consideration
54
Notice before Seasonal Use
56
Replacement of the Magnesium Rod
56
Requirements on Water Quality
56
Precautions
56
External Water Pump and Three-Way Valve
57

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