Daikin SUPER MULTI NX G Series Manuals

Manuals and User Guides for Daikin SUPER MULTI NX G Series. We have 1 Daikin SUPER MULTI NX G Series manual available for free PDF download: Service Manual

Daikin SUPER MULTI NX G Series Service Manual (244 pages)

Brand: Daikin | Category: Air Conditioner | Size: 17.25 MB

Table of Contents
2
Safety Considerations
8
Safety Considerations for Repair
8
Safety Considerations for Users
9
List of Functions
10
Functions
12
Specifications
16
Specifications
18
Indoor Unit
18
Outdoor Unit
20
Printed Circuit Board Connector Wiring Diagram
24
Printed Circuit Board Connector Wiring Diagram
26
Indoor Unit - Duct-Free System
26
Indoor Unit - Slim Duct Built-In System
28
Outdoor Unit - 2MXS18GVJU
30
Outdoor Unit - 3MXS24JVJU, 4MXS32GVJU
33
Function and Control
36
Main Functions
38
Temperature Control
38
Frequency Principle
38
Airflow Direction Control (Duct-Free System)
40
Fan Speed Control for Indoor Units
41
Program Dry Operation
42
Automatic Operation
43
Thermostat Control
44
NIGHT SET Mode
45
HOME LEAVE Operation
46
INTELLIGENT EYE Operation
47
Inverter POWERFUL Operation
48
Other Functions
49
Function of Thermistor
51
Control Specification
53
Mode Hierarchy
53
Frequency Control
54
Controls at Mode Changing / Start-Up
56
Discharge Pipe Temperature Control
58
Input Current Control
58
Freeze-Up Protection Control
59
Heating Peak-Cut Control
59
Outdoor Fan Control
60
Liquid Compression Protection Function
60
Defrost Control
61
Low Hz High Pressure Limit
62
Electronic Expansion Valve Control
62
Malfunctions
66
Forced Operation Mode
68
Operation Manual
70
System Configuration
72
Duct-Free System
73
Remote Controller
73
AUTO · DRY · COOL · HEAT · FAN Operation
75
Adjusting the Airflow Direction
77
INTELLIGENT EYE Operation
79
POWERFUL Operation
81
OUTDOOR UNIT Quiet Operation
82
HOME LEAVE Operation
83
TIMER Operation
85
Note for Multi System
87
Slim Duct Built-In System
89
Remote Controller
89
AUTO / DRY / COOL / HEAT / FAN Operation
90
POWERFUL Operation
92
OUTDOOR UNIT QUIET Operation
93
HOME LEAVE Operation
94
TIMER Operation
96
Service Diagnosis
98
Caution for Diagnosis
100
Troubleshooting with LED
100
Problem Symptoms and Measures
102
Service Check Function
103
ARC452 Series Remote Controller
103
ARC433 Series Remote Controller
106
Code Indication on the Remote Controller
109
Error Codes and Description of Fault
109
Troubleshooting
110
Indoor Unit
110
Outdoor Unit
111
Indoor Unit PCB Abnormality
112
Freeze-Up Protection Control or Heating Peak-Cut Control
113
Fan Motor or Related Abnormality
115
Thermistor or Related Abnormality (Indoor Unit)
118
Signal Transmission Error (between Indoor and Outdoor Units)
119
Unspecified Voltage (between Indoor and Outdoor Units)
121
Anti-Icing Function
122
Outdoor Unit PCB Abnormality (24/32 Class)
124
OL Activation (Compressor Overload)
125
Compressor Lock
126
DC Fan Lock
127
Input Overcurrent Detection
128
Four-Way Valve Abnormality (18 Class)
130
Discharge Pipe Temperature Control
132
High Pressure Control in Cooling
133
Compressor Sensor System Abnormality (24/32 Class)
135
Position Sensor Abnormality
137
CT or Related Abnormality
140
Thermistor or Related Abnormality (Outdoor Unit)
142
Electrical Box Temperature Rise
144
Radiation Fin Temperature Rise
147
Output Overcurrent Detection
150
Refrigerant Shortage
152
Low-Voltage Detection or Over-Voltage Detection
155
Signal Transmission Error (on Outdoor Unit PCB) (24/32 Class)
156
Signal Transmission Error (on Outdoor Unit PCB) (24/32 Class)147
156
Unspecified Voltage (between Indoor and Outdoor Units) / Anti-Icing Function in Other Rooms
157
Tion in Other Rooms
157
Check
158
How to Check
158
Removal Procedure
168
Outdoor Unit - 2MXS18GVJU
170
Removal of the Outer Panels
170
Removal of the Electrical Box
171
Removal of the PCB
175
Removal of the Fan Motor
179
Removal of the Sound Blanket
180
Removal of the Coils and Thermistors
182
Removal of the Four-Way Valve and Defrost Solenoid Valve Procedure
184
Removal of the Compressor
186
Outdoor Unit - 3MXS24JVJU / 4MXS32GVJU
188
Removal of the Outer Panels
188
Removal of the Electrical Box
202
Removal of the PCB
208
Removal of the Fan Motor
213
Removal of the Coils and Thermistors
214
Removal of the Sound Blanket
220
Removal of the Compressor
223
Trial Operation and
224
Field Settings
224
Trial Operation
226
Wiring Error Check Function
228
Field Settings
230
Priority Room Setting
230
COOL / HEAT Mode Lock
230
NIGHT QUIET Mode
231
When 2 Units Are Installed in 1 Room
232
Application of Silicon Grease to a Power Transistor and a Diode Bridge224
233
Appendix
234
Piping Diagrams
236
Indoor Unit
236
Outdoor Unit
237
Wiring Diagrams
239
Indoor Unit
239
Outdoor Unit
241

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Daikin SUPER MULTI NX G Series Service Manual (244 pages)

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