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FGR25/CNa-M
Gree FGR25/CNa-M User Manual
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DUCT TYPE SPLIT
AIR CONDITIONER
SER
VICE MANUAL
T1/R410A/50Hz
(GC201303-
)
2
Table of Contents
Default Chapter
2
Table of Contents
2
Product
5
Models List
5
Nomenclature
6
Function
7
Features-Outdoor Units
7
Features-Indoor Units
7
Product Data
8
Product Data at Rated Condition
8
Operation Range
11
Piping Diagram
12
Cooling Only
12
Heat Pump
12
Control
14
Operation Flowchart
14
Cooling/Dry Operation
14
Heating Operation
15
Main Logic
16
Cooling
16
Dry Mode
16
Heating Mode
17
Defrosting
17
Fan Mode
18
Cooling Mode
18
Dry Mode
19
Fan Mode
20
Heating Mode
20
Defrosting Mode
21
Wired Remote Controller
22
Displaying Part
22
Buttons
23
Installation of Wired Controller and Project Debugging
24
Instruction to Operation
25
Error Display
37
Setting of Indoor Room Sensor and Checking of Outdoor Ambient Temperature
38
Wireless Remote Controller
40
Centralized Controller-Week Timer
42
Function
42
Operation View
42
Display View
43
Dimensions
44
Installation
46
Indoor Unit Installation
46
Before Installation
46
Installation Site
46
Dimension Data
46
Installation Clearance Data
47
Drain Piping Work
47
Outdoor Unit Installation
47
Before Installation
47
Installation Site
48
Dimension Data
48
Installation Clearance Data
49
Refrigeration Piping Work
50
Refrigeration Piping Work Procedures
50
Caution in Connecting Pipes
50
Specification of Connection Pipe
50
Electric Wiring Work
51
Wiring Principle
51
Electric Wiring Design
51
Specification of Power Supply Wire and Air Switch
52
Maintenance
54
Trouble Table
54
Flow Chart of Troubleshooting
55
High Pressure Protection
55
Low Pressure Protection
56
Discharge Protection
57
Overcurrent Protection
57
Communication Malfunction
58
Temperature Sensor Malfunction
58
Indoor Fan Overloading Protection
59
F0 Failure of Indoor Room Sensor at Air Intake
59
F1 Failure of Evaporator Temp. Sensor
60
Wiring Diadram
61
Disassembly and Assembly Procedure of Main Parts
65
Exploded Views and Part List
67
Indoor Unit
67
Outdoor Unit
75
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Gree FGR25/CNa-M Specifications
General
Power Supply
220-240V, 50Hz
Refrigerant
R410A
Type
Split System
Outdoor Noise Level
50 dB
Power Input (Heating)
780 W
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