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Daikin
Air Conditioner
D-Series
Daikin D-Series User Manual
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Si18-525B
Wiring Diagrams
Appendix
447
FTKS50BVMB, FTK(X)S50BVMA8, FTXS5
0DVMT
FTKS60/
71BVMB,
FTK(X)S6
0/71BVM
A8, FTXS6
0/71DVMT
3D038065G
CONTROLLER
WIRELESS
REMOTE
PCB4
PCB3
PCB5
INTELLIGENT EYE
LED1
H1P
R1T
SENSOR
t
°
S37
S38
LED2
H2P
LED3
H3P
PCB2
S27
S36
S1W
RECEIVER
SIGNAL
S26
S35
S21
S29
S28
PCB1
R2T
S32
t
°
~
RECTIFIER
1
RED
M1S
M
S6
ORG
YL
W
~
PNK
5
BLU
1
TRANSMISSION
BRN
RED
CIRCUIT
M2S
S8
M
ORG
YL
W
7
1
3.15A
S1
PNK
6
Fu
BLU
WHT
BRN
RED
BLU
ORG
H2
H3
H1
INDOOR
M1F
FG
M
GRN
FG
Fu
H1~H3
H1P~H3P
M1F
M1S
,
M2S
PCB1~PCB5
R1T
,
R2T
S1~S38
S1W
X1M
WHT
RED
/
BLK
YL
W
X1M
3
2
1
: SWING MOTOR
: THERMISTOR
: PROTECTIVE EARTH
THE MAIN POWER SUPPL
Y IS
ON AGAIN.
TURNED OFF
AND THEN BACK
NOTE THA
T
OPERA
TION WILL
REST
ART
AUTOMA
TICALL
Y IF
FIELD WIRING.
CAUTION
3
2
1
OUTDOOR
: FRAME GROUND
: FUSE
: HARNESS
: PILOT LAMP
: F
AN MOTOR
: PRINTED CIRCUIT BOARD
: CONNECTOR
: OPERA
TION SWITCH
: TERMINAL
STRIP
CONTROLLER
WIRELESS
REMOTE
PCB4
PCB3
PCB5
INTELLIGENT EYE
LED1
H1P
R1T
SENSOR
t
S37
S38
°
LED2
H2P
LED3
H3P
PCB2
S27
S36
S1W
RECEIVER
SIGNAL
S26
S35
S21
S29
S28
PCB1
R2T
S32
t
°
~
RECTIFIER
1
RED
M1S
M
S6
ORG
YL
W
~
PNK
5
BLU
1
TRANSMISSION
BRN
RED
CIRCUIT
M2S
S8
M
ORG
YL
W
7
1
3.15A
S1
PNK
6
Fu
BLU
WHT
BRN
RED
BLU
ORG
H2
H3
H1
INDOOR
FG
M1F
M
GRN
R1T
, R2T
M1S, M2S
PCB1~ PCB5
WHT
RED
/
BLK
Fu
M1F
H1 ~ H3
S1 ~ S38
H1P ~ H3P
FG
YL
W
X1M
S1W
X1M
3
2
1
: PROTECTIVE EARTH
THE MAIN POWER SUPPL
Y IS
ON AGAIN.
TURNED OFF
AND THEN BACK
NOTE THA
T
OPERA
TION WILL
REST
ART
AUTOMA
TICALL
Y IF
FIELD WIRING.
CAUTION
3
2
1
OUTDOOR
: FRAME GROUND
: FUSE
: HARNESS
: PILOT LAMP
: F
AN MOTOR
: SWING MOTOR
: PRINTED CIRCUIT BOARD
: THERMISTOR
: CONNECTOR
: OPERA
TION SWITCH
: TERMINAL
STRIP
3D038530N
459
461
Table of Contents
Table of Contents
4
Introduction
9
Safety Cautions
9
Used Icons
13
Part 1 List of Functions
14
List of Functions
15
Cooling Only
15
Heat Pump
26
Part 2 Specifications
34
Specifications
35
Cooling Only
35
Heat Pump
55
Part 3 Printed Circuit Board Connector Wiring Diagram
72
Printed Circuit Board Connector Wiring Diagram
73
Outdoor Unit
73
Branch Provider Unit
79
Wall Mounted Type
80
Duct Connected Type
89
Floor / Ceiling Suspended Dual Type
91
Floor Standing Type
94
Ceiling Mounted Cassette Type (600×600)
97
Ceiling Mounted Cassette Type (950×950)
100
Ceiling Mounted Built-In Type
103
Ceiling Suspended Type
105
Part 4 Refrigerant Circuit
108
Refrigerant Circuit
109
Outdoor Units
109
Refrigerant Circuit Part
109
BP Units
111
Functional Parts Layout
112
Outdoor Units
112
Refrigerant Flow for each Operation Mode
113
Cooling Operation
113
Heating Operation
114
Cooling Oil Return Operation
115
Heating Oil Return Operation & Defrost Operation
116
Part 5 Function
118
Operation Mode
120
Basic Control
121
Normal Operation
121
Compressor PI Control
122
Electronic Expansion Valve PI Control
125
Cooling Operation Fan Control
126
Special Control
127
Startup Control
127
Oil Return Operation
128
Defrosting Operation
130
Pump-Down Residual Operation
131
Restart Standby
131
Stopping Operation
132
Pressure Equalization Prior to Startup
132
Protection Control
133
High Pressure Protection Control
133
Low Pressure Protection Control
135
Discharge Pipe Protection Control
136
Inverter Protection Control
137
Freeze-Up Protection Control
138
Dew Condensation Prevention Control
139
Other Control
140
Demand Operation
140
Heating Operation Prohibition
140
BP Unit Control
141
BP Unit Command Conversion
141
BP Unit Electronic Expansion Valve Control
142
SH Control in Cooling Operation
144
SC Control in Heating Operation
145
Heat Exchanger Isothermal Control in Heating Operation
145
Indoor Unit (RA Models)
146
Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing
146
Fan Speed Control for Indoor Units
147
Programme Dry Function
148
Automatic Operation
149
Thermostat Control
150
Night Set Mode
151
ECONO Mode
152
MOLD PROOF Operation
152
Intelligent Eye
153
HOME LEAVE Operation
155
Inverter POWERFUL Operation
156
7.12 Other Functions
157
Indoor Unit (Skyair Models)
159
Function Outline
159
Electric Function Parts
160
Function Details
161
Part 6 Test Operation
172
Test Operation
173
Procedure and Outline
173
Outdoor Unit PCB Layout
178
Field Setting
179
Field Setting from Outdoor Unit
179
Detail of Setting Mode
185
Field Setting for Skyair Indoor Unit
195
Explanation
195
Field Setting
196
Initial Setting Contents
197
Local Setting Mode Number
198
Detailed Explanation of Setting Modes
199
Centralized Group No. Setting
203
Maintenance Mode Setting
204
Test Operation and Field Setting for RA Indoor Unit
205
Test Operation from the Remote Controller
205
Jumper Settings
206
Part 7 System Configuration
208
System Configuration
209
Operation Instructions
209
Instruction
210
Outdoor Units
210
Wall Mounted, Duct, Floor/Ceiling, Floor Standing, Wall Built-In Type
211
Wall Mounted, Duct, Floor/Ceiling, Floor Standing
211
Wall Built-In Type
211
Ceiling Mounted Cassette Type
291
Ceiling Mounted Built-In Type
302
Ceiling Suspended Type
312
Part 8 Troubleshooting
324
Caution for Diagnosis
326
Troubleshooting with Operation Lamp
326
Troubleshooting with the LED on the Skyair Indoor Unit
327
Troubleshooting with the LED on the Outdoor Unit
328
Troubleshooting with the LED on the BP Unit
329
Service Check Function
330
RA Indoor Unit Wireless Remote Controller
330
Skyair Indoor Unit INSPECTION/TEST Button
333
Skyair Indoor Unit Wired Remote Controller
334
Skyair Indoor Unit Wireless Remote Controller
335
Sky Air Indoor Unit Error Codes and LED Indication
337
Malfunction Code Indication by Outdoor Unit PCB
338
List of Malfunction Code
340
Troubleshooting for RA Indoor Unit
342
Indoor Unit PCB Abnormality
342
Freeze-Up Protection Control or High Pressure Control
343
Fan Motor or Related Abnormality
345
Thermistor or Related Abnormality (Indoor Unit)
348
Shutter Drive Motor / Shutter Limit Switch Abnormality
349
Check
350
Troubleshooting for Skyair Indoor Unit
353
Indoor Unit PCB Abnormality
353
Malfunction of Drain Water Level System (Float Type)
354
Malfunction of Drain System
356
Indoor Unit Fan Motor Lock
357
Malfunction of Indoor Unit Fan Motor
358
Swing Flap Motor Malfunction / Lock
360
Malfunction of Capacity Setting
362
Malfunction of Heat Exchanger Thermistor (R2T)
363
Malfunction of Heat Exchanger Thermistor (R3T)
364
Malfunction of Suction Air Thermistor
365
Malfunction of Remote Controller Thermistor
366
Transmission Error (between Indoor Unit and Remote Controller)
367
Transmission Error (between Main and Sub Remote Controller)
368
Malfunction of Field Setting Switch
369
5.15 Check
370
Troubleshooting for BP Unit
372
Malfunction of Electronic Expansion Valve
372
Faulty BP Unit PCB
373
Faulty BP Liquid or Gas Pipe Thermistor
374
Transmission Error between Indoor Unit and BP Unit
375
Transmission Error between Outdoor Unit and BP Unit
377
Check
378
Troubleshooting for Outdoor Unit
379
Faulty Outdoor Unit PCB
379
Actuation of High Pressure Switch
380
Actuation of Low Pressure Switch
381
Compressor Motor Lock
382
Malfunction of Outdoor Unit Fan Motor
383
Malfunction of Moving Part of Electronic Expansion Valve
384
Abnormal Discharge Pipe Temperature
385
Malfunction of Thermistor for Outdoor Air (R1T)
386
Malfunction of Discharge Pipe Thermistor (R3T)
387
Malfunction of Thermistor (R2T) for Suction Pipe
388
Malfunction of Thermistor (R4T) for Outdoor Unit Heat Exchanger
389
Malfunction of Receiver Gas Pipe Thermistor (R5T)
390
Outdoor Unit: Malfunction of High Pressure Sensor
391
Malfunction of Low Pressure Sensor
392
Malfunction of Inverter Radiating Fin Temperature Rise
393
Inverter Compressor Abnormal
394
Inverter Current Abnormal
395
Inverter Start up Error
396
Malfunction of Transmission between Inverter and Control PCB
397
Malfunction of Inverter Radiating Fin Temperature Rise Sensor
399
Faulty Combination of Inverter and Fan Driver
400
Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure
401
Power Supply Insufficient or Instantaneous Failure
402
7.24 Check Operation Not Executed
404
Malfunction in Other Indoor Unit or Other BP Unit
405
Mismatching of Indoor Unit, BP Unit and Outdoor Unit
406
Refrigerant System Not Set, Incompatible Wiring/Piping
407
Malfunction of System, Refrigerant System Address Undefined
408
Check
409
Thermistor Resistance / Temperature Characteristics
411
10.Pressure Sensor
413
Part 9 Removal Procedure
414
Outdoor Unit
415
Removal of Outer Panels
415
Removal of PCB
422
Removal of Solenoid Valve, Four Way Valve and Motorized Valve
433
Removal of Thermistor Assembly
434
Removal of Fan Motor
435
BP Unit
438
Removal of PCB
438
Removal of Solenoid Valve Coil
441
Part 10 Appendix
444
Piping Diagrams
445
Outdoor Units
445
BP Units
446
Indoor Units
447
Wiring Diagrams
455
Outdoor Units
455
BP Units
458
Indoor Units
460
Index
470
Drawings & Flow Charts
476
5
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Daikin D-Series Specifications
General
Brand
Daikin
Model
D-Series
Category
Air Conditioner
Language
English
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