Daikin J Series Service Manual Page 137
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Flow of Refrigerant SiE18-201
126 Flow of Refrigerant
1. Flow of Refrigerant
1.1 Flow of Refrigerant
Operation Mode
No.
Operating Status
: Fixed opening (step)
: Variable opening
●: Fully closed status
The figures in ( ) are
for applicable range.
Excess refrigerant
4-way valve EVP
Discharge
Bypass
Motorized
Valve
EVG
Outdoor Unit
Gas Pipe
Motorized
Valve
EVL
Outdoor Unit
Liquid Pipe
Motorized
Valve
EVA,B,C-
Operating Room
Unit
BP Unit each
Room Motorized
Valve
EVA,B,C- Non-
Operating Room
Unit
BP Unit each
Room Motorized
Valve
EVH BP Unit
Bypass
Motorized
Valve
Cooling/
Heating
changeover
Defrost
control
Oil
collection in
heating
Capacity
linear
control
Equalizing
control
Freeze
protection
control
Peak cut
control
At starting
<Cooling>
Surplus
refrigerant
amount
adjustment
Target
discharge
pipe
temperature
control
<Heating>
Reverse
target
discharge
pipe
temperature
control
Capacity
linear
control
(1-step)
<Cooling>
Subcooling
control
<Heating>
Target
discharge
pipe
temperature
control
Main
reducing
valve
Refrigerant
distribution
control
<Cooling>
Gas pipe
isothermal
control
SH control
<Heating>
Subcooling
control
<Cooling>
Refrigerant
distribution
OFF
<Heating>
Target
discharge
pipe
temperature
control
Main pipe
liquid
stagnation
prevention
control at
starting
Oil return
control
Defrost
control
Cooling
1.2 Standby Operation — OFF 450 pls ● 0 pls 120 pls ● 0 pls ● 0 pls ● 0 pls
1.3
Equalizing Control — OFF 450 pls
52 → 0
pls
450 →
100 pls
● 0 pls ● 0 pls ● 0 pls
1.4
Oil Return
Operation
Main Gas
Pipe Oil
Return
— OFF 0~200
60~100
or 450
100~450
52~450
pls
● 0 pls 450 pls
1.5
Low Outside Air
Temperature
Cooling
2.5kW
1-Room
Operation
NO OFF 0~200
0~100
(EVL=0)
● 0 pls
52~450
pls
● 0 pls ● 0 pls
1.6
All-Room Operation NO OFF ● 0 pls
0~100
(EVL=0)
● 0 pls
52~450
pls
● 0 pls ● 0 pls
1.7
Multi-Room
Operation
NO OFF ● 0 pls
0~100
(EVL=0)
● 0 pls
52~450
pls
● 0 pls ● 0 pls
1.8 (Partial
Loading)
YES OFF ● 0 pls
0~450
(EVL≠0)
12~450
52~450
pls
● 0 pls ● 0 pls
1.9
1-Room
Operation
Indoor Unit
Large
Capacity
YES OFF ● 0 pls
0~450
(EVL≠0)
12~450
52~450
pls
● 0 pls ● 0 pls
1.10
Indoor Unit
Small
Capacity
(2.5 kW)
YES OFF 0~200
0~450
(EVL≠0)
12~450
52~450
pls
● 0 pls ● 0 pls
Heating
1.11 Standby Operation — ON 450 pls 450 pls ● 0 pls ● 0 pls ● 0 pls ● 0 pls
1.12
Equalizing Control — ON 450 pls
450 →
100 pls
● 0 pls ● 0 pls ● 0 pls
0 → 100
→ 0 pls
1.13
Oil return Operation — OFF
450 → 0
→ 150
→ 450
pls
● 0 pls ● 0 pls 190 pls ● 0 pls
0 → 232
→ 0 pls
1.14
Defrost — OFF
450 →
150 →
450 pls
0 → 70
→ 0 pls
450 → 0
pls
190 pls ● 0 pls 100 pls
1.15
All-Room Operation NO ON ● 0 pls ● 0 pls
0~100
(EVG=0)
52~450
pls
52~420
pls
● 0 pls
1.16
Multi-Room
Operation
NO ON ● 0 pls ● 0 pls
0~100
(EVG=0)
52~450
pls
52~420
pls
● 0 pls
1.17 (Partial
Loading)
YES ON ● 0 pls 0~70
0~450
(EVG≠0)
52~450
pls
52~420
pls
● 0 pls
1.18
1-Room
Operation
Indoor Unit
Large
Capacity
YES ON ● 0 pls 0~70
0~450
(EVG≠0)
52~450
pls
52~420
pls
● 0 pls
1.19
Indoor Unit
Small
Capacity
(2.5kW)
YES ON 0~450 0~150
0~450
(EVG≠0)
52~450
pls
52~420
pls
● 0 pls
——Pump Down Operation — OFF 0~450 ● 0 pls
- J Series 1
- Super Multi Plus 2
- SiE18-201 3
- Table of Contents iii 4
- Table of Contents v 6
- 1. Introduction 8
- 1.1.3 Inspection after Repair 10
- 1.1.4 Using Icons 11
- 1.1.5 Using Icons List 11
- List of Function 12
- 1. List of Function 13
- SiE18-201 List of Function 14
- List of Function 3 14
- List of Function SiE18-201 15
- 4 List of Function 15
- 1 : for FLK, FLX50/60J 15
- : for FLK, FLX50/60J 15
- List of Function 5 16
- 1 : for FLX50/60J 16
- : for FLX50/60J 16
- 6 List of Function 17
- Specifications 18
- 1. Specifications 19
- Outdoor Unit 20
- Main Piping 20
- Branch Piping 20
- Indoor Unit 20
- 1.1.2 Heat Pump 23
- 1.2 BP Units 27
- 1.3 Indoor Units (for Europe) 28
- 5.0kW Class · 6.0kW Class 29
- 7.1kW Class 29
- Duct Connected Type 30
- 2.5kW Class · 3.5kW Class 31
- Floor Standing Type 33
- Printed Circuit Board 34
- Connector Wiring Diagram 34
- Name of Connector 35
- Other Designations 35
- Printed Circuit 35
- Board (1) 37
- (Control PCB) 37
- FVX25 / 35K Series 39
- Printed Circuit Board (1)~(3) 40
- 1.4 FTXD50~71JV Series 41
- Other Designation 45
- Main Functions 48
- 1. Main Functions 49
- For FTX25/35 J 50
- For FTK(X)25/35 J 51
- Detailed 52
- room temperature is at 53
- 1.1.15 Intelligent Eye 54
- Series Only 55
- Processing 55
- 1.1.17 Program Dry Operation 56
- Differential 57
- Compressor ON 57
- Compressor OFF 57
- 1.1.20 Auto-Restart Function 58
- 1.1.22 Auto-Swing of Flap(s) 58
- Main Functions SiE18-201 59
- 48 Main Functions 59
- BLADE ANGLE 59
- 1.1.26 Powerful Operation 60
- 1.1.27 Filter Check Indicator 61
- 1.2 SkyAir 62
- 52 Main Functions 63
- The Corresponding Models 64
- Cautions 64
- 54 Main Functions 65
- OutdoorUnit / BP Unit 66
- 56 Main Functions 67
- Parts of Outdoor Unit 68
- 1.2 Major Functional Parts 69
- Main Functions 59 70
- 60 Main Functions 71
- 2. Protection Device 72
- 2.2 BP Unit 73
- 3. System control 74
- 3.2 Mode Configuration 75
- Explanation of 76
- The Function 76
- Standby Operation 77
- 3.5 Equalizing Control 78
- Equalizing Control in Heating 79
- Main Functions 71 82
- 3.7 Oil Return Operation 85
- Main Functions 75 86
- 3.8 Defrost Operation 87
- Heating standby operation 88
- Cooling standby operation 88
- 3.10 Equalizing Control 89
- Equalizing control in heating 90
- 3.11 Capacity Control 91
- Main Functions 81 92
- 3.12 Peak Cut Control 93
- 3.13 Freeze-Up Prevention 94
- 3.14 Gas Shortage Malfunction 95
- 3.15 Discharge Pipe Control 96
- 3.16 Input Current Control 97
- 88 Main Functions 99
- 3.17 Wet Protection Control I 100
- Temperature Control 101
- SiE18-201 System control 102
- Main Functions 91 102
- Purpose of the 104
- Function 104
- 3.22 PI Control 105
- 3.23 Warm-Up Function 106
- 3.25 Fan Control 108
- 3.25.2 Fan OFF Delay Control 109
- Main Functions 99 110
- EVG: Gas pipe motorized valve 110
- Main Functions 101 112
- System control SiE18-201 113
- 102 Main Functions 113
- Temperature 114
- Main Functions 105 116
- Main Functions 107 118
- 112 Main Functions 123
- 114 Main Functions 125
- Pipe Temperature 130
- 3.37 4-Way Valve Operation 131
- 3.38 JIS Mode 132
- 3.39 Pump Down Operation 133
- SkyAir Indoor 134
- Unit Peak-Cut 134
- 124 Main Functions 135
- Flow of Refrigerant 136
- 1. Flow of Refrigerant 137
- SiE18-201 Flow of Refrigerant 138
- Flow of Refrigerant 127 138
- Flow of Refrigerant SiE18-201 139
- 128 Flow of Refrigerant 139
- Flow of Refrigerant 129 140
- 130 Flow of Refrigerant 141
- Flow of Refrigerant 131 142
- (Cooling) 143
- Refrigerant) 144
- (2.5 kW) (Cooling) 146
- 136 Flow of Refrigerant 147
- Flow of Refrigerant 137 148
- 138 Flow of Refrigerant 149
- 1.14 Defrost Operation 150
- 140 Flow of Refrigerant 151
- (Heating) 152
- 142 Flow of Refrigerant 153
- (2.5 kW) (Heating) 155
- Operations 156
- 1. Remote Controller 157
- 1.1.2 FVX25 / 35KZ 158
- 1.1.3 FTXD25 / 35KZ 159
- 1.1.4 FTXD50 / 60 / 71J 160
- 1.1.5 FLX50 / 60J 161
- 1.1.6 CDX25 / 35 / 50 / 60J 162
- 1.1.7 CDX25 / 35 / 50 / 60HA 163
- 1.1.8 FLX25 / 35H 164
- BRC7C513WC 165
- NAMES AND FUNCTIONS OF THE 166
- OPERATING SECTION (Fig. 1, 2) 166
- 1.2 Wired Remote Controller 167
- Operating Test 168
- 1. Operating Test 169
- SiE18-201 Operating Test 170
- Operating Test 159 170
- INITIALIZE SETTING 171
- TEST OPERATION SWITCH [SW7] 172
- Digital display: 173
- "" 173
- 1 SYSTEM LAYOUT 174
- 2. Method of Field Set 175
- Wireless Remote Controller 176
- 2.1.2 Local Setting Mode No 177
- Air Flow Direction Setting 178
- Setting Table 178
- Filter Sign Setting 178
- Explanation 179
- Setting the 179
- Receiver 179
- <KRP928A1S> 183
- 7. Settings 184
- SiE18-201 Method of Field Set 184
- Operating Test 173 184
- 6. Function 184
- Applicable model series 185
- These cases are not troubles 185
- Service Diagnosis 186
- Indicator lamps 187
- Operation lamp (green) 187
- Air outlet 187
- Troubleshooting 188
- Indication 188
- 1.2 Service Check Function 189
- 1.4 Troubleshooting 191
- 1.5 Troubleshooting Detail 192
- 5 B 5 193
- C4, C5, C9, CA 196
- 1.5.5 Faulty Indoor Unit PCB 197
- 1.5.6 Faulty Indoor Unit PCB 198
- 188 Service Diagnosis 199
- CDK(X)25~60H) 200
- 5 B 3 203
- Controller) 204
- Service Diagnosis 195 206
- 196 Service Diagnosis 207
- " UP " button 208
- " DOWN " button 208
- 198 Service Diagnosis 209
- General 210
- Precautions 210
- Maintenance 210
- 2.5.1 Explanation for Symbols 211
- 2.6 Troubleshooting Detail 212
- 202 Service Diagnosis 213
- 204 Service Diagnosis 215
- Service Diagnosis 205 216
- 206 Service Diagnosis 217
- Supposed 220
- Switch Box 222
- Service Monitor 222
- 3.3 Troubleshooting Detail 223
- 3.3.2 Compressor Lock 224
- 3.3.3 Fan Lock / Overcurrent 225
- Service Diagnosis 215 226
- 216 Service Diagnosis 227
- Service Diagnosis 217 228
- 3.3.7 LP Drop Error 229
- Faulty high pressure switch 230
- 220 Service Diagnosis 231
- Service Diagnosis 221 232
- 222 Service Diagnosis 233
- 3.3.19 Abnormal LP Error 241
- Service Diagnosis 231 242
- 232 Service Diagnosis 243
- Service Diagnosis 233 244
- Service Diagnosis 235 246
- 3.3.24 Electronic Thermal 247
- 3.3.25 Stall Prevention 248
- Faulty fan PC board 249
- Service Diagnosis 239 250
- 240 Service Diagnosis 251
- 242 Service Diagnosis 253
- Service Diagnosis 243 254
- 244 Service Diagnosis 255
- 3.3.32 System Malfunction 257
- Service Diagnosis 247 258
- 3.3.34 Faulty Fin Thermistor 259
- 3.4 How to Check 260
- Check No.4 261
- In the case of RMX140JVMC 262
- Compressor's terminal 263
- (U, V, W, N) 263
- Output Current 264
- Measurement 264
- Output Voltage 264
- (R25=20kΩ, B=3950) 265
- Check No.9 266
- Check No.11 267
- Check No.12 267
- Check No.14 268
- 4. BP Unit Trouble Diagnosis 270
- 260 Service Diagnosis 271
- Removal Procedure 272
- 1. For BPMK928B42 · 43 273
- SiE18-201 For BPMK928B42 · 43 278
- Removal Procedure 267 278
- Step Procedure Points 278
- 1.4 Removal of Thermistor 279
- Removal Procedure 269 280
- 2. Outdoor Unit 281
- Electrical box 284
- Wire harness 284
- Connectors 284
- Relay connector 285
- Lock screws 285
- Filter PCB 285
- Outdoor Unit SiE18-201 289
- 278 Removal Procedure 289
- 2.4 Removal of Thermistor 292
- Motorized 293
- Putty for check valve 293
- SiE18-201 Outdoor Unit 294
- Removal Procedure 283 294
- 2.7 Removal of Compressor 297
- Lock bolt 298
- Lock nut 298
- 2.8 Removal of 4-way Valve 299
- 290 Removal Procedure 301
- 3. Indoor Unit 303
- Cautions before Operation 304
- 1. Installation 305
- SiE18-201 Installation 306
- Caution Before Operation 295 306
- INSTALLATION 307
- INSTALLATION OF THE MAIN UNIT 308
- 2. Wiring 309
- Make sure numbers 310
- 1, 2, and 3 all match 310
- CONNECTING THE WIRING 311
- Wiring SiE18-201 313
- 302 Caution Before Operation 313
- SiE18-201 Wiring 314
- Caution Before Operation 303 314
- 3. Others 315
- Others SiE18-201 317
- 306 Caution Before Operation 317
- ADDRESS SWITCH 318
- Appendix 320
- 1. Piping Diagrams 321
- 1.3 Indoor Units 323
- FLX25 / 35HV1NB 324
- Field Piping φA cut 325
- Field Piping φB cut 325
- FTXD25 / 35KZV1B 326
- FVX25 / 35KZV1B 327
- 2. Wiring Diagrams 328
- 2.2 BP Units 329
- 2.3 Indoor Units 330
- FHYB35 / 45 / 60 / 71FK7V1 331
- FTXD50 / 60 / 71JV1B 332
- FLX50 / 60JV1B 334
- Wiring Diagrams SiE18-201 335
- 324 Appendix 335
- Index iii 338
- Drawings & Flow Charts 340
- Zandvoordestraat 300 344
- B-8400 Ostend - Belgium 344
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