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Daikin
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RX71GV1B8
Daikin RX71GV1B8 User Manual
130 pages
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Service
Manual
[Applied Models]
z
Inverter Pai
r : Heat P
ump
Inverter Pair
Wall Mounted Type FTX-G Series
SiBE041029EC
2
Table of Contents
Default Chapter
3
Table of Contents
3
Safety Cautions
6
Warnings and Cautions Regarding Safety of Workers
6
Warnings and Cautions Regarding Safety of Users
8
Used Icons
11
Part 1 List of Functions
12
Functions
13
Part 2 Specifications
14
Specifications
15
Part 3 Printed Circuit Board Connector Wiring Diagram
22
Indoor Unit
23
Outdoor Unit
25
RX50/60G2V1B, 71 Class
25
Rx50/60G2V1B9, Rx50/60G3V1B, Rx60G4V1B
27
Part 4 Function and Control
29
Main Functions
30
Temperature Control
30
Frequency Principle
30
Airflow Direction Control
32
Fan Speed Control for Indoor Unit
33
Program Dry Operation
34
Automatic Operation
35
Thermostat Control
36
NIGHT SET Mode
37
HOME LEAVE Operation
37
INTELLIGENT EYE Operation
39
Inverter POWERFUL Operation
40
Clock Setting
40
Other Functions
41
Function of Thermistor
42
Control Specification
43
Mode Hierarchy
43
Frequency Control
44
Controls at Mode Changing / Start-Up
46
Discharge Pipe Temperature Control
48
Input Current Control
49
Freeze-Up Protection Control
50
Heating Peak-Cut Control
50
Outdoor Fan Control
51
Liquid Compression Protection Function
51
Defrost Control
52
Electronic Expansion Valve Control
53
Pressure Equalizing Control
54
Malfunctions
56
Part 5 Remote Controller
57
Remote Controller
58
Mode Button
59
Part 6 Service Diagnosis
60
General Problem Symptoms and Check Items
62
Troubleshooting with LED
63
Indoor Unit
63
Outdoor Unit
63
Service Diagnosis
64
Troubleshooting
67
Error Codes and Description
67
Indoor Unit PCB Abnormality
68
Freeze-Up Protection Control / Heating Peak-Cut Control
69
Fan Motor (DC Motor) or Related Abnormality
70
Thermistor or Related Abnormality (Indoor Unit)
72
Refrigerant Shortage
73
Low-Voltage Detection or Over-Voltage Detection
75
Signal Transmission Error (between Indoor Unit and Outdoor Unit)
77
Signal Transmission Error on Outdoor Unit PCB (RX50/60G2V1B, 71 Class Only)
79
Unspecified Voltage (between Indoor Unit and Outdoor Unit)
80
Outdoor Unit PCB Abnormality
81
OL Activation (Compressor Overload)
83
Compressor Lock
85
DC Fan Lock
86
Input Overcurrent Detection
87
Four Way Valve Abnormality
88
Discharge Pipe Temperature Control
90
High Pressure Control in Cooling
91
Compressor System Sensor Abnormality
92
Position Sensor Abnormality
94
CT or Related Abnormality (RX50/60G2V1B, 71 Class Only)
97
Thermistor or Related Abnormality (Outdoor Unit)
99
Electrical Box Temperature Rise
101
Radiation Fin Temperature Rise
102
Output Overcurrent Detection
104
Check
106
Thermistor Resistance Check
106
Indoor Fan Motor Connector Output Check
107
Power Supply Waveforms Check
107
Electronic Expansion Valve Check
107
Four Way Valve Performance Check
108
Inverter Unit Refrigerant System Check
108
Inverter Analyzer Check
109
Rotation Pulse Check on the Outdoor Unit PCB
110
Installation Condition Check
111
Discharge Pressure Check
111
Outdoor Fan System Check
112
Main Circuit Short Check
112
Capacitor Voltage Check
113
Power Module Check
113
Part 7 Trial Operation and Field Settings
115
Pump down Operation
116
Forced Cooling Operation
117
Trial Operation
118
Field Settings
119
When 2 Units Are Installed in 1 Room
119
Facility Setting (Cooling at Low Outdoor Temperature)
120
Jumper and Switch Settings
121
Silicon Grease on Power Transistor / Diode Bridge
122
Part 8 Appendix
123
Piping Diagrams
124
Indoor Unit
124
Outdoor Unit
124
Wiring Diagrams
126
Indoor Unit
126
Outdoor Unit
127
Revision History
129
Other manuals for Daikin RX71GV1B8
Installation Manual
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Daikin RX71GV1B8 Specifications
General
Model
RX71GV1B8
Category
Air Conditioner
Type
Split System
Cooling Capacity
7.1 kW
Heating Capacity
8.0 kW
Power Supply
220-240 V, 50 Hz
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