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Daikin
Air Conditioner
RXM71M
Daikin RXM71M User Manual
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Service
Manual
RA R32 Split &
multi split M-Series
ESIE16-02B
Indoor unit
Outdoor unit
FTXJ-M FTXM-M FTXP-KV FDXM
-F
RXJ-M RXM-M MXM-M MXM-
N
2
Table of Contents
Default Chapter
3
Table of Contents
3
Part 1. Introduction
9
Version Log
9
Safety Precautions
10
Meaning of Symbols
10
Warnings
10
Cautions
12
Information
12
General Operation
13
How to Use
14
Interactive Information Flow
14
Parts of the Book
15
The Introduction Chapter
15
The Troubleshooting Chapter
15
The Repair Chapter
15
The Maintenance Chapter
15
Appendices
15
Contact Information
15
Part 2. Troubleshooting
17
Error Codes Check
17
Error Codes Via Remote Controller
17
General
17
How to Reset Error Codes
17
History of Error Codes
17
Error Codes Via Outdoor Unit PCB
18
How to Retrieve Error Codes
18
How to Reset Error Codes
18
History of Error Codes
19
Content of Retry
19
Error Based Troubleshooting
20
Indoor Unit
21
A1-00" - PCB Abnormality
21
A1-01" - PCB Abnormality
21
A5-00" - Freeze-Up Protection / Heating Peak Cut Control
22
A6-00" - Fan Motor Abnormality
22
C4-00" - Liquid Pipe Thermistor for Heat Exchanger Abnormality
23
C7-00" - Front Panel Open/Close Fault
23
C9-00" - Suction Air Thermistor Abnormality
23
UH-00" - Anti-Icing Function in Other Room(S)
24
Outdoor Unit
25
E1-00" - Outdoor Unit PCB Abnormality
25
E3-00" - Discharge Pressure Abnormality
25
E5-00" - Compressor Motor Lock or Overheated
26
E6-00" - Compressor Motor Lock
26
E7-00" - Fan Motor Abnormality
27
E8-00" - Compressor Overcurrent Detection
28
EA-00" - 4-Way Valve Abnormality
28
F3-00" - Discharge Pipe Temperature Abnormality
29
F6-00" - High Pressure Abnormality or Refrigerant Overcharge
29
H0-00" - Compressor Sensor System Abnormality
30
H6-00" - Position Detection Sensor Abnormality
30
H8-00" - Compressor Input (CT) System Abnormality
31
H9-00" - Outdoor Air Temperature Thermistor Abnormality
31
J3-00" - Discharge Pipe Thermistor Abnormality
32
J5-00" - Suction Pipe Thermistor Abnormality
32
J6-00" - Outdoor Heat Exchanger Thermistor Abnormality
32
J8-00" - Liquid Pipe Thermistor Abnormality
33
J9-00" - Gas Pipe Thermistor Abnormality
33
L1-00" - Outdoor Main PCB Abnormality
34
L3-00" - Switch Box Temperature Abnormality
34
L4-00" - Inverter Radiating Fin Temperature Abnormality
35
L5-00" - Inverter Instantaneous Overcurrent (AC Output)
36
P4-00" - Radiating Fin Temperature Sensor Abnormality
36
System
38
U0-00" - Refrigerant Shortage
38
U2-00" - Power Supply Abnormality or Instantaneous Power Failure
38
U4-00" - Transmission Abnormality between Indoor Unit and Outdoor Unit
39
U7-00" - Transmission Outdoor Unit-Outdoor Unit Abnormality
40
UA-00" - Improper Combination of Indoor Unit and Outdoor Unit
40
UF-00" - Wiring and Piping Mismatch
41
Others
41
Symptom Based Troubleshooting
42
Indoor Unit
42
Outdoor Unit
42
System
42
Others
42
Component Checklist
43
Indoor Unit
44
Fan Motor
44
Outdoor Unit
45
4-Way Valve
45
Compressor
47
Electronic Expansion Valve
49
Fan Motor
51
High Pressure Sensor
52
Main PCB
53
Pressure Sensor
54
Refrigerant Thermistors
56
System
58
Others
58
Other Capacity Range
59
Part 3. Repair
61
Refrigerant Repair Procedures
61
Refrigerant Piping Handling
61
Recovery Procedure
61
Outdoor Unit Casing
61
Figure 3-1: 1 Service Port at the Stop Valves
62
Refrigerant Pump down
63
Small Outdoor Unit
63
Large Outdoor Unit
64
Piping Repair Procedures
64
Service Tools
65
Unit Specific Repair Procedures
66
Indoor Unit
67
Outdoor Unit
68
Basic Removal
68
Figure 3-4: Removing the Top Plate
69
Figure 3-5: Removing the Front Plate
70
Replacing Switch Box
71
Figure 3-7: Removing the Switch Box
72
Replacing 4-Way Valve Body
73
Replacing 4-Way Valve Coil
75
Replacing Compressor
76
Figure 3-10: Removing the Compressor
77
Replacing DC Fan Motor Assembly
79
Figure 3-11: Removing the DC Fan Motor Assembly
80
Replacing Expansion Valve Body
81
Replacing Expansion Valve Motor
82
Figure 3-14: Locking the Expansion Valve Motor
83
Replacing Main PCB
84
Replacing Propeller Fan Blade Assembly
85
Figure 3-16: Removing the DC Fan Motor Assembly
86
Replacing Thermistors
87
Setting Test Mode for Inverter Checker
88
Part 4. Maintenance
89
Indoor Unit
89
General Maintenance
89
Outdoor Unit
90
General Maintenance Outdoor Unit
90
Part 5. Appendix
91
Field Setting
93
Indoor Unit
93
Indoor Fan Control During Thermostat off in Cooling
93
Brightness Setting of Multi-Coloured Lamp of the Indoor Unit
93
ON/OFF Button on the Indoor Unit
93
Outdoor Unit
94
Facility Setting for Outdoor Split Units
94
Multi Split Outdoor
94
Figure 5-4: Dip Switch Location
95
Remote Controller
96
Detailed Information Setting Mode
97
Indoor Unit
97
Outdoor Unit
97
Remote Controller
97
Wiring Diagram
98
Indoor Unit
98
Outdoor Unit
99
2Mxm50M
99
3Mxm68M
99
4Mxm-M
100
Rxj20-35M
101
Rxj50M
101
Rxm20-35M
101
Rxm42-50M
102
Rxm60-71M
102
Rxm71M
103
Field Wiring
103
Piping Diagram
104
Indoor Unit
104
Outdoor Unit
104
2Mxm40M
104
3Mxm68M
105
5Mxm-M
106
Rxj20-35M
106
Rxj50M
107
Rxm20-35M
107
Rxm42-50M
108
Rxm60
108
Rxm71M
109
Component Overview of Unit
110
Indoor Unit
110
Outdoor Unit
110
Product Specific Information
111
Error Codes
111
E7-00" - Fan Motor Abnormality
111
EA-00" - Malfunction of 4-Way Valve
111
F3-00" - Discharge Pipe Temperature Abnormality
111
L3-00" - Switch Box Temperature Abnormality
111
L4-00" - Inverter Radiating Fin Temperature Abnormality
111
Component Checklist
111
Version
111
Field Information Report
112
4
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Daikin RXM71M Specifications
General
Cooling Capacity
7.1 kW
Power Supply
220-240V, 50Hz
Refrigerant
R32
Energy Efficiency Ratio (Cooling)
3.20
Outdoor Unit Noise Level
49 dB
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