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Daikin
Air Conditioner
E Series
Daikin E Series User Manual
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SiAU18-715
Pressure Sen
sor
Troublesh
ooting
407
10.
Pressure Sensor
High Pressure (P
H
)
Low Pressure (P
L
)
P
H
: Detected Pressure [High Side] MPa
P
L
: Detected Pressure [Low Side] MPa
V
H
: Output Voltage [High Side] V
DC
V
L
: Output Voltage [Low Side] V
DC
P
H
= 1.38V-0.69
P
L
= 0.57V-0.28
P
H
: High pressure (MPa)
V
L
: Low pressure (MPa)
V : Voltage (V)
Output Voltage (V
H,
V
L)
Detected Pressure
(V3053)
419
421
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
20
Part 2 Specifications
26
Cooling Only
27
Heat Pump
36
Part 3 Printed Circuit Board Connector Wiring Diagram
48
Printed Circuit Board Connector Wiring Diagram
49
Outdoor Unit
49
BP Unit
54
Wall Mounted Type 20/25/35 Class
55
Wall Mounted Type 50/60/71 Class
57
Duct Connected Type
59
Floor / Ceiling Suspended Dual Type
61
Floor Standing Type
64
Ceiling Mounted Cassette 600×600 Type
67
Ceiling Mounted Cassette Type (950×950)
70
1.10 Ceiling Mounted Built-In Type
73
1.11 Ceiling Suspended Type
75
Part 4 Refrigerant Circuit
78
Refrigerant Circuit
79
Outdoor Units
79
Refrigerant Circuit Part
79
BP Units
81
Functional Parts Layout
82
Outdoor Units
82
Refrigerant Flow for each Operation Mode
83
Cooling Operation
83
Heating Operation
84
Cooling Oil Return Operation
85
Heating Oil Return Operation & Defrost Operation
86
Part 5 Function
88
Operation Mode
89
Basic Control
90
Normal Operation
90
Compressor PI Control
91
Electronic Expansion Valve PI Control
94
Cooling Operation Fan Control
95
Special Control
96
Startup Control
96
Siau18
96
Oil Return Operation
97
Defrosting Operation
99
Pump-Down Residual Operation
100
Restart Standby
100
Stopping Operation
101
Protection Control
102
High Pressure Protection Control
102
Low Pressure Protection Control
103
Discharge Pipe Protection Control
104
Inverter Protection Control
105
Freeze-Up Protection Control
106
Dew Condensation Prevention Control
107
Other Control
108
Demand Operation
108
Heating Operation Prohibition
108
BP Unit Control
109
BP Unit Command Conversion
109
BP Unit Electronic Expansion Valve Control
110
SH Control in Cooling Operation
112
SC Control in Heating Operation
113
Heat Exchanger Isothermal Control in Heating Operation
113
Indoor Unit (RA Models)
114
Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing
114
Fan Speed Control for Indoor Units
115
Programme Dry Function
116
Automatic Operation
117
Thermostat Control
118
Night Set Mode
119
ECONO Mode
120
MOLD PROOF Operation
120
INTELLIGENT EYE (Wall Mounted Type Only)
121
HOME LEAVE Operation
123
Inverter POWERFUL Operation
124
7.12 Other Functions
125
Indoor Unit (Skyair Models)
127
Function Outline
127
Electric Function Parts
128
Function Details
129
Part 6 Test Operation
140
Test Operation
141
Procedure and Outline
141
Outdoor Unit PCB Layout
146
Field Setting
147
Field Setting from Outdoor Unit
147
Detail of Setting Mode
156
Field Setting for Skyair Indoor Unit
165
Explanation
165
Field Setting
166
Initial Setting Contents
167
Local Setting Mode Number
168
Detailed Explanation of Setting Modes
169
Centralized Group No. Setting
173
Maintenance Mode Setting
174
Test Operation and Field Setting for RA Indoor Unit
175
Test Operation from the Remote Controller
175
Jumper Settings
176
Part 7 Operation Manual
178
System Configuration
179
Operation Instructions
179
Instruction
180
RMK(X)S Series
180
Wall Mounted, Duct, Floor/Ceiling Type
181
FVXS Series
237
Ceiling Mounted Cassette Type
267
Ceiling Mounted Built-In Type
289
Safety Considerations
290
Ceiling Suspended Type
299
Part 8 Troubleshooting
312
Siau18
313
Caution for Diagnosis
314
Troubleshooting with the Operation Lamp (RA Indoor Unit)
314
Troubleshooting with the LED on the Skyair Indoor Unit
315
Troubleshooting with the LED on the Outdoor Unit
316
Troubleshooting with the LED on the BP Unit
317
Service Check Function
318
RA Indoor Unit Wireless Remote Controller
318
Skyair Indoor Unit INSPECTION/TEST Button
323
Skyair Indoor Unit Wired Remote Controller
324
Skyair Indoor Unit Wireless Remote Controller
325
Sky Air Indoor Unit Error Codes and LED Indication
327
Malfunction Code Indication by Outdoor Unit PCB
328
List of Malfunction Code
332
Troubleshooting for RA Indoor Unit
334
Indoor Unit PCB Abnormality
334
Freeze-Up Protection Control or High Pressure Control
335
Fan Motor or Related Abnormality
337
Thermistor or Related Abnormality (Indoor Unit)
340
Check
341
Thermistor Resistance Check
342
Hall IC Check
343
Troubleshooting for Skyair Indoor Unit
344
Indoor Unit PCB Abnormality
344
Malfunction of Drain Water Level System (Float Type)
345
Malfunction of Drain System
347
Indoor Unit Fan Motor Lock
348
Malfunction of Indoor Unit Fan Motor
349
Swing Flap Motor Malfunction / Lock
351
Malfunction of Capacity Setting
353
Malfunction of Heat Exchanger Thermistor (R2T)
354
Malfunction of Heat Exchanger Thermistor (R3T)
355
Malfunction of Suction Air Thermistor
356
Siau18
356
Malfunction of Remote Controller Thermistor
357
Transmission Error (between Indoor Unit and Remote Controller)
358
Transmission Error (between Main and Sub Remote Controller)
359
Malfunction of Field Setting Switch
360
5.15 Check
361
Troubleshooting for BP Unit
363
Malfunction of Electronic Expansion Valve
363
Faulty BP Unit PCB
364
Faulty BP Liquid or Gas Pipe Thermistor
365
Transmission Error between Indoor Unit and BP Unit
366
Transmission Error between Outdoor Unit and BP Unit
368
Check
369
Troubleshooting for Outdoor Unit
370
Faulty Outdoor Unit PCB
370
Actuation of High Pressure Switch
371
Actuation of Low Pressure Sensor
373
Compressor Motor Lock
375
Malfunction of Outdoor Unit Fan Motor
376
Malfunction of Moving Part of Electronic Expansion Valve (Y1E, Y3E)
377
Abnormal Discharge Pipe Temperature
379
Refrigerant Overcharged
380
Malfunction of Thermistor for Outdoor Air (R1T)
381
Malfunction of Discharge Pipe Thermistor (R2T)
382
Malfunction of Thermistor (R3T, R5T) for Suction Pipe1, 2
383
Malfunction of Thermistor (R4T) for Outdoor Unit Heat Exchanger
384
Malfunction of Thermistor (R7T) for Outdoor Unit Liquid Pipe
385
Malfunction of Subcooling Heat Exchanger Thermistor (R6T)
386
Malfunction of High Pressure Sensor
387
Malfunction of Low Pressure Sensor
388
Malfunction of PCB
389
Malfunction of Inverter Radiating Fin Temperature Rise
390
Inverter Compressor Abnormal
391
Inverter Current Abnormal
392
Inverter Start up Error
393
Malfunction of Transmission between Inverter and Control PCB
394
High Voltage of Capacitor in Main Inverter Circuit
395
Malfunction of Inverter Radiating Fin Temperature Rise Sensor
396
Faulty Combination of Inverter and Fan Driver
397
Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure
398
Power Supply Insufficient or Instantaneous Failure
400
Check Operation Not Executed
402
Malfunction of Transmission between Indoor Units and Outdoor Units
403
Malfunction of Transmission between Remote Controller and Indoor Unit
405
Malfunction of Transmission between Main and Sub Remote Controllers
406
Malfunction of Transmission between Indoor and Outdoor Units in the same System
407
Siau18
408
Excessive Number of Indoor Units
409
Address Duplication of Central Remote Controller
410
Malfunction of Transmission between Central Remote Controller and Indoor Unit
411
System Is Not Set yet
413
Malfunction of System, Refrigerant System Address Undefined
414
Check
415
Thermistor Resistance / Temperature Characteristics
418
10.Pressure Sensor
420
Method of Replacing the Inverter's Power Transistors Modules
421
Part 9 Appendix
424
Piping Diagrams
425
Outdoor Units
425
BP Units
426
Indoor Units
427
Wiring Diagrams
433
Outdoor Units
433
BP Units
435
Indoor Units
436
Index
444
4
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Daikin E Series Specifications
General
Brand
Daikin
Model
E Series
Category
Air Conditioner
Language
English
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