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GRS-CQ16Pd/NhG-K
Gree GRS-CQ16Pd/NhG-K Service Manual
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VERSA
TI
Ⅲ
Air T
o W
ater Heat Pump
2
Table of Contents
Default Chapter
2
Table of Contents
2
Engineering Data
5
Product Data
6
Lineup
6
Nomenclature
7
Product Features
8
Operating Principle
10
Technical Data
11
Outline Dimensions
16
Explosive Views and Part Lists
17
Supply Scope
21
Design & Selection
22
Installation Example
23
Model Selection
24
Speculations of Power Supply
24
Operation Conditions
25
Flowchart of Model Selection
25
Design Principle
25
Selection of the Underfloor Coils
25
Calculation of Unit Load for Floor Heating
25
Selection of Tube Spacing of the Underfloor Coils
26
Selection of Loop Quantity of Coils for each Room
26
Quantity and Location of the Water Traps and Collectors
27
Design Requirements on Loop Quantity for Circulation Water
27
Requirements on Installation of the Water Trap (Collector)
29
Section of FCU
29
FCU Type Selection
29
Matching of Capacity
29
Selection of the Water Tank
30
Specifications of the Water Tank
30
Volume Selection of the Water Tank
30
Examples for Model Selection
31
General Introduction to the Example Project
31
Heat Load Calculation
31
Model Selection
32
Unit Control
33
Integral Control Concept
34
Control Principle Diagram
34
Control Flowchart
37
Main Control Logics
37
Cooling
37
Heating
38
Water Heating
38
Shutdown
39
Control to the Compressor
39
Control to the Fan
39
Control to the 4-Way Valve
40
Control to the Water Pump
40
Control the Electrostatic Expansion Valve
40
Protection Control
40
Controller
41
General
41
Operation Instructions
43
Intelligent Control
70
Unit Installation
82
Installation Guides
83
Installation Position
84
Matters Need Attention
84
Filed Supplied Pipes and Valves
85
Service Tools
86
Instalaltion Instructions
87
Installation Examples
87
Pre-Installation
89
Selection of Installation Location
90
Outline Dimension of Outdoor Unit
91
Installation of Monobolc Unit
92
Installation of Hydraulic Unit
93
Installation of Water Tank
96
Request of Water Quality
99
Electric Wiring
100
Wiring of the Terminal Board
101
Wiring of the 2-Way Valve
103
Wiring of the 3-Way Valve
103
Wiring of Other Thermal
104
Wiring of Optional Electric Heater
106
Wiring of the Gate-Controller
107
Wiring of the Remote Air Temperature Sensor
108
Wiring of the Thermostat
109
Wiring of the Control
109
Commissioning and Trial Run
110
Check before Startup
110
Test Run
111
Test Operation & Troubleshooting & Maintenance
113
Trial Run
114
Check for Wiring
114
Check for the Water System
114
Check for the Communication System
114
Error Code List
114
Flow Chart of Troubleshooting
117
Comp High-Pressure Protection E1
117
Comp Low- Pressure Protection E3
118
Comp Discharge Temp Protection E4
119
Overload Protection of Compressor or Driver Error
120
DC Fan Error EF
121
Temperature Sensor Error
121
Communication Malfunction E6
122
Capacity Switch Error (Code:"C5")
123
Diagnosis of Driving
124
Diagnosis Flowchart of Driving of Single-Phase Unit and Three-Phase Unit
124
Daily Maintenance and Repair
129
Daily Maintenance
129
Troubleshooting
130
Repair
131
Other manuals for Gree GRS-CQ16Pd/NhG-K
Owner's Manual
180 pages
4
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Gree GRS-CQ16Pd/NhG-K Specifications
General
Heating Seasonal Performance Factor (HSPF)
4.0
Refrigerant
R410A
Voltage
220-240 V
Energy Efficiency Ratio (Cooling)
3.21
Frequency
50 Hz
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