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RTSQ10PY1
Daikin RTSQ10PY1 User Manual
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Service
Manual
RTSQ10-20PY1
R-410A Heat Pump 50Hz
SiBE31-801_C
2
Table of Contents
Default Chapter
2
Table of Contents
2
Introduction
7
Safety Cautions
7
Preface
11
Part 1 General Information
12
Model Names of Indoor/Outdoor Units
13
External Appearance
14
Indoor Units
14
Outdoor Units and Function Units
15
Model Selection
16
Features of this Model Series
18
Part 2 Specifications
19
Outdoor Units
20
Indoor Units
24
BS Units
63
Part 3 Refrigerant Circuit
64
Refrigerant Circuit
65
Rtsq8Py1
65
Refrigerant Circuit Part
65
Rtsq10Py1, 12Py1
67
Rtsq14Py1, 16Py1
69
BS Unit Functional Parts
71
Function Unit
72
Indoor Units
73
Functional Parts Layout
75
Rtsq8P
75
Rtsq10P, 12P
76
Rtsq14P, 16P
77
Btsq20P
78
Refrigerant Flow for each Operation Mode
79
Part 4 Function
91
Function General
93
Operation Modes
93
Symbol
94
Stopping Operation
95
When System Is in Stop Mode
95
Stop Due to Malfunction
95
Standby
96
Restart Standby
96
Crankcase Heater Control
96
Rotation Control
97
Rotation of Outdoor Units
97
Operating Priority and Rotation of Compressors
97
Startup Control
98
Startup Control in Cooling Operation
98
Startup Control in Heating Operation
99
Startup Control of Function Unit (Only for Heating Operation at Low Outdoor Air Temperature)
100
Normal Operation
101
List of Functions in Normal Operation
101
Compressor Control
102
Electronic Expansion Valve PI Control
105
Outdoor Unit Fan Control
106
Control for Cooling Operation at Low Outdoor Air Temperature
106
Control for Heating Operation at Low Outdoor Air Temperature
107
Refrigerant Flow Rate Control
108
Protection Control
109
High Pressure Protection Control
109
Low Pressure Protection Control
111
Discharge Pipe Protection Control
113
Inverter Protection Control
114
STD Compressor Overload Protection
115
Cooling Fan Control for Radiation Fin Temperature of Function Unit
115
Heater Control for Function Unit Switch Box
115
Special Control
116
Pump down Residual Operation
116
Oil Return Operation
118
Defrost Operation
122
Emergency Operation
124
Outline of Control (Indoor Unit)
125
Operation Flow Chart
125
Thermostat Control
127
Thermostat Control While in Normal Operation
130
Thermostat Control in Dry Operation
130
Drain Pump Control
132
Freeze Prevention
135
Heater Control (Optional PCB KRP1B
136
List of Swing Flap Operations
137
Control of Electronic Expansion Valve
138
Part 5 Test Operation
139
Test Operation
140
Installation Process
140
Procedure and Outline
141
Additional Refrigerant Charge Procedure
145
Check Operation
155
Check in Normal Operation
157
Outdoor Unit PCB Layout
158
Field Setting
159
Field Setting from Remote Controller
159
Detailed Explanation of Setting Modes
166
Field Setting from Outdoor Unit
177
Part 6 Troubleshooting
205
Check Items for Service
208
For Troubleshooting
208
Precautions for Service
208
Symptom-Based Troubleshooting
210
Troubleshooting by Remote Controller
213
The INSPECTION / TEST Button
213
Self-Diagnosis by Wired Remote Controller
214
Self-Diagnosis by Wireless Remote Controller
215
Remote Controller Service Mode
218
Inspection Mode
221
Test Run Mode
222
Remote Controller Self-Diagnosis Function
222
List of Malfunction Code
224
Troubleshooting by Indication on the Remote Controller
231
A0" Indoor Unit: Error of External Protection Device
231
A1" Indoor Unit: PCB Defect
232
A3" Indoor Unit: Malfunction of Drain Level Control System (S1L)
233
A6" Indoor Unit: Fan Motor (M1F) Lock, Overload
235
A6" Indoor Unit: Malfunction of Indoor Unit Fan Motor
237
A6" Indoor Unit : Malfunction of Indoor Unit Fan Motor
237
A7" Indoor Unit: Malfunction of Swing Flap Motor (M1S)
241
A9" Electronic Expansion Valve Malfunction / Dust Clogging
243
A9" Indoor Unit: Malfunction of Electronic Expansion Valve Coil
245
AF" Indoor Unit: Drain Level above Limit
247
AJ" Indoor Unit: Malfunction of Capacity Determination Device
248
C4" Indoor Unit: Malfunction of Thermistor (R2T) for Heat Exchanger
249
C5" Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes
250
C9" Indoor Unit: Malfunction of Thermistor (R1T) for Suction Air
251
CA" Indoor Unit: Malfunction of Thermistor (R4T) for Discharge Air
252
CJ" Indoor Unit: Malfunction of Room Temperature
253
Thermistor in Remote Controller
253
E1" Outdoor Unit: PCB Defect
254
E3" Outdoor Unit: Actuation of High Pressure Switch
255
E4" Outdoor Unit: Actuation of Low Pressure Sensor
257
E5" Outdoor Unit: Inverter Compressor Motor Lock
259
E6" Outdoor Unit: STD Compressor Motor Overcurrent/Lock
261
E7" Outdoor Unit: Malfunction of Outdoor Unit Fan Motor
262
E9" Outdoor Unit: Malfunction of Electronic Expansion Valve Coil (Y1E~Y5E)
265
F3" Outdoor Unit: Abnormal Discharge Pipe Temperature
267
F6" Outdoor Unit: Refrigerant Overcharged
269
H7" Outdoor Unit: Abnormal Outdoor Fan Motor Signal
270
H9" Outdoor Unit: Malfunction of Thermistor (R1T) for Outdoor Air
272
J2" Outdoor Unit: Current Sensor Malfunction
273
J3" Outdoor Unit: Malfunction of Discharge Pipe Thermistor (R31T, R32T, R33T)
274
J4" Outdoor Unit: Malfunction of Temperature Sensor for Heat Exchanger Gas (R2T)
275
J5" Outdoor Unit: Malfunction of Thermistor (R8T) for Suction Pipe
276
J6" Outdoor Unit: Malfunction of Thermistor (R4T) for Outdoor Unit Heat Exchanger
277
J7" Outdoor Unit: Malfunction of Liquid Pipe Thermistor 1 (R6T or R9T)
278
J8" Outdoor Unit: Malfunction of Liquid Pipe Thermistor 2 (R7T)
279
J9" Outdoor Unit: Malfunction of Subcooling Heat Exchanger Gas Pipe Thermistor (R5T)
280
JA" Outdoor Unit: Malfunction of High Pressure Sensor
281
JC" Outdoor Unit: Malfunction of Low Pressure Sensor
283
L1" Outdoor Unit: Defective Inverter PCB
285
L4" Outdoor Unit: Malfunction of Inverter Radiation Fin Temperature Rise
287
L5" Outdoor Unit: Momentary Overcurrent of Inverter Compressor
289
L8" Outdoor Unit: Momentary Overcurrent of Inverter Compressor
291
L9" Outdoor Unit: Inverter Compressor Starting Failure
293
LC" Outdoor Unit: Malfunction of Transmission between Inverter and Control PCB
296
P1" Outdoor Unit: Inverter Over-Ripple Protection
299
P4" Outdoor Unit: Malfunction of Inverter Radiation Fin Temperature Rise Sensor
301
PJ" Outdoor Unit: Faulty Field Setting after Replacing Main PCB or Faulty Combination of PCB
302
U0" Outdoor Unit: Refrigerant Shortage Alert
304
U1" Reverse Phase, Open Phase
306
U2" Outdoor Unit: Power Supply Insufficient or Instantaneous Failure
307
U3" Outdoor Unit: Check Operation Is Not Executed
310
U4" Malfunction of Transmission between Indoor Units
311
U5" Indoor Unit: Malfunction of Transmission between
313
Remote Controller and Indoor Unit
313
U7" Outdoor Unit: Transmission Failure (Across Outdoor Units)
314
Troubleshooting by Indication on the Remote Controller
317
U8" Indoor Unit: Malfunction of Transmission between
321
Main and Sub Remote Controllers
321
U9" Indoor Unit: Malfunction of Transmission between
322
Indoor and Outdoor Units in the same System
322
UA" Improper Combination of Indoor and Outdoor Units
323
Indoor Units and Remote Controller
323
UC" Address Duplication of Centralized Controller
327
UE" Malfunction of Transmission between Centralized Controller and Indoor Unit
328
UF" System Is Not Set yet
331
UH" Malfunction of System, Refrigerant System Address Undefined
332
Troubleshooting (OP: Centralized Remote Controller)
334
M1" PCB Defect
334
M8" Malfunction of Transmission between
335
Optional Controllers for Centralized Control
335
MA" Improper Combination of Optional Controllers for Centralized Control
336
MC" Address Duplication, Improper Setting
338
Troubleshooting (OP: Unified ON/OFF Controller)
339
Operation Lamp Blinks
339
Display "Under Centralized Control" Blinks (Repeats Single Blink)
341
Display "Under Centralized Control" Blinks (Repeats Double Blink)
344
Troubleshooting (Heat Reclaim Ventilation)
345
60" Error of External Protection Device
345
64", "65" Indoor Air Thermistor Error
346
6A" Damper System Error (Alarm)
347
6A" Damper System Error (Alarm)
348
6F" Malfunction of Simplified Remote Controller
349
Part 7 Appendix
364
Piping Diagrams
365
Outdoor Unit
365
Indoor Unit
370
BS Unit
377
Wiring Diagrams for Reference
378
Outdoor Unit
378
Field Wiring
382
Indoor Unit
384
BS Unit
400
List of Electrical and Functional Parts
402
Outdoor Unit
402
Indoor Unit
406
Option List
412
Option List of Controllers
412
Option Lists (Outdoor Unit)
414
Example of Connection (R-410A Type)
415
Thermistor Resistance / Temperature Characteristics
419
Pressure Sensor
421
Method of Checking the Inverter's Power Transistors and Diode Modules
422
Diode Modules
422
Part 8 Precautions for New Refrigerant (R-410A)
424
Precautions for New Refrigerant (R-410A)
425
Outline
425
Refrigerant Cylinders
427
Service Tools
428
Revision History
434
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Daikin RTSQ10PY1 Specifications
General
Category
Heat Pump
Model
RTSQ10PY1
Weight (Outdoor Unit)
30 kg
Refrigerant
R32
Power Supply
220-240 V, 50 Hz
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