Si18-201
vi Table of Contents
1.3 Code Indication on the Remote Controller ...........................................230
1.4 Troubleshooting....................................................................................231
1.5 Troubleshooting Detail .........................................................................232
2. Troubleshooting - SkyAir Indoor Unit ..................................................246
2.1 The INSPECTION/TEST Button...........................................................246
2.2 Self-Diagnosis by Wired Remote Controller.........................................247
2.3 Fault Diagnosis by Wireless Remote Controller...................................248
2.4 Troubleshooting by LED on the Indoor Unit’s.......................................250
2.5 Troubleshooting by Remote Controller Display / LED Display.............251
2.6 Troubleshooting Detail .........................................................................252
3. Troubleshooting - Outdoor Unit Related .............................................260
3.1 The Unit Runs but Doesn’t Cool (Heat) the Room ...............................260
3.2 7 Seg. Display on the Outdoor P. C. Board..........................................262
3.3 Troubleshooting Detail .........................................................................263
3.4 How to Check.......................................................................................300
4. BP Unit Trouble Diagnosis..................................................................310
4.1 PCB Parts Layout.................................................................................310
4.2 LED On Branch Provider Unit (Diagnosis LEDs) .................................310
Part 10Removal Procedure ........................................................ 311
1. For BPMK928B42 · 43 ........................................................................312
1.1 Installation of Indoor Unit......................................................................312
1.2 Opening of Electrical Box Cover and Removal of PCB Mount.............313
1.3 Removal of Motorized Valve ................................................................315
1.4 Removal of Thermistor.........................................................................318
2. Outdoor Unit........................................................................................320
2.1 Removal of Outer Panels .....................................................................320
2.2 Removal of PCB and Electrical Box.....................................................321
2.3 Removal of Propeller Fans and Fan Motors.........................................329
2.4 Removal of Thermistor.........................................................................331
2.5 Removal of Motorized Valve ................................................................332
2.6 Removal of Sound Insulation ...............................................................334
2.7 Removal of Compressor.......................................................................336
2.8 Removal of 4-way Valve.......................................................................338
3. Indoor Unit...........................................................................................342
3.1 Refer following table for indoor unit removal procedure.......................342
Part 11Cautions before Operation............................................. 343
1. Installation...........................................................................................344
1.1 Outdoor Unit.........................................................................................344
1.2 BP Unit .................................................................................................346
2. Wiring..................................................................................................348
2.1 Outdoor Unit.........................................................................................348
2.2 BP Unit .................................................................................................350
2.3 Outdoor Unit Rotary Switch Setting......................................................352
3. Others .................................................................................................354
3.1 Explanation for FTK(X)25/35J Series...................................................354
3.2 Explanation for FTK(X)50/60H and CDK(X)25~60H Series.................357