![background image](http://html1.mh-extra.com/html/daikin/sky-air-b-series-r-410a/sky-air-b-series-r-410a_service-manual_2460071005.webp)
Si21-205
iv
Table of Contents
6.11 Output Over Current Detection............................................................ 179
6.12 Insufficient Gas.................................................................................... 181
6.13 Over-voltage Detection........................................................................ 183
6.14 High Pressure Control in Cooling ........................................................ 184
6.15 Checks for Outdoor Unit (25/35 class) ................................................ 186
7. Troubleshooting for Outdoor Unit (50/60 class) ..................................195
7.1
OL Activation (Compressor Overload)................................................. 195
7.2
Compressor Lock ................................................................................ 196
7.3
DC Fan Lock........................................................................................ 197
7.4
Input Over Current Detection............................................................... 198
7.5
Four Way Valve Abnormality ............................................................... 200
7.6
Discharge Pipe Temperature Control .................................................. 202
7.7
Position Sensor Abnormality ............................................................... 203
7.8
CT or Related Abnormality .................................................................. 204
7.9
Thermistor or Related Abnormality (Outdoor Unit) .............................. 206
7.10 Electrical Box Temperature Rise ......................................................... 208
7.11 Radiation Fin Temperature Rise.......................................................... 210
7.12 Output Over Current Detection............................................................ 212
7.13 Insufficient Gas.................................................................................... 214
7.14 Low-voltage Detection ......................................................................... 216
7.15 High Pressure Control in Cooling ........................................................ 217
7.16 Checks for Outdoor Unit (50/60 class) ................................................ 219
Part 9 Removal Procedure ........................................................229
1. FFQ25/35/50/60BV1B.........................................................................230
1.1
Removal of Suction Grille .................................................................... 230
1.2
Removal of Air Filter ............................................................................ 231
1.3
Removal of Decoration Panel.............................................................. 232
1.4
Removal of Horizontal Vane................................................................ 234
1.5
Removal of Swing Motor ..................................................................... 236
1.6
Removal of Switch Box........................................................................ 237
1.7
Removal of Fan Rotor and Fan Motor ................................................. 238
1.8
Removal of Drain Pan ......................................................................... 240
1.9
Removal of Drain Pump ...................................................................... 241
1.10 Installation of Drain Pump ................................................................... 242
1.11 Replacement of Heat Exchanger Thermistor ...................................... 244
1.12 Replacement of Heat Exchanger......................................................... 246
1.13 Replacement of PC Board................................................................... 250
1.14 Replacement of Receiver Section of Wireless Remote Controller ...... 253
2. FHQ35/50/60BUV1B...........................................................................255
2.1
Removal of Air Filter and Suction Grille............................................... 255
2.2
Removal of Electrical Parts and PC Boards ........................................ 256
2.3
Removal of Horizontal Blade ............................................................... 258
2.4
Removal of Fan Rotor and Fan Motor ................................................. 259
2.5
Removal of Fan Bearing...................................................................... 261
2.6
Removal of Bottom Panel and Drain Pan............................................ 262
2.7
Removal of Swing Motor ..................................................................... 263
3. Outdoor Unit (25/35 class) ..................................................................264
3.1
Removal of External Casing ................................................................ 264
3.2
Removal of Bellmouth ......................................................................... 266
3.3
Removal of PCB and Electrical Box .................................................... 267
Summary of Contents for Sky Air B-Series R-410A
Page 7: ...Si21 205 vi Table of Contents ...
Page 15: ...Models Si21 205 4 Model Name and Power Supply ...
Page 16: ...Si21 205 Functions 5 Part 2 Functions 1 List of Functions 6 ...
Page 35: ...Wireless Remote Controller Si21 205 24 Remote Controller ...
Page 79: ...Settings Concerning Maintenance Si21 205 68 Field Setting Detail of PCB 2 ...
Page 83: ...Maintenance Mode Setting Si21 205 72 Field Setting ...
Page 239: ...Troubleshooting for Outdoor Unit 50 60 class Si21 205 228 Troubleshooting ...
Page 321: ...Outdoor Unit 50 60 class Si21 205 310 Removal Procedure ...