Table Of Contents - Heat Controller Comfort-Aire BHD-252 Service Manual

1. PREFACE
1.1 SAFETY PRECAUTIONS ...........................................................................................................................3
1.2 FEATURES AND DIMENSIONS ................................................................................................................3
1.2.1 FEATURES........................................................................................................................................3
1.2.2 DIMENSIONS ....................................................................................................................................3
1.3 SPECIFICATIONS ......................................................................................................................................4
1.4 CONTROL TYPE ........................................................................................................................................5
1.4.1 MECHANICAL TYPE.........................................................................................................................5
1.4.2 ELECTRONIC TYPE .........................................................................................................................5
1.5 HOW TO OPERATE DEHUMIDIFIER ........................................................................................................6
1.5.1 HOW DOES THE DEHUMIDIFIER WORK? .....................................................................................6
1.5.2 LOCATION FOR THE DEHUMIDIFIER.............................................................................................6
1.5.3 MICRO SWITCH................................................................................................................................6
1.5.4 AUTO DEFROST...............................................................................................................................6
1.5.5 HUMIDITY CONTROLLER................................................................................................................7
2. CIRCUIT DIAGRAM
3. DISASSEMBLY INSTRUCTIONS
3.1 MECHANICAL PARTS .............................................................................................................................10
3.1.1 BUCKET AND AIR FILTER .............................................................................................................10
3.1.2 FRONT CASE AND TOP COVER...................................................................................................10
3.1.3 CABINET AND CONTROL BOX .....................................................................................................10
3.2 CONTROL PARTS ..................................................................................................................................11
3.2.1 POWER CORD ASSEMBLY ...........................................................................................................11
3.2.2 SENSOR ASSEMBLY .....................................................................................................................11
3.2.3 PWB(PCB) ASSEMBLY, MAIN .......................................................................................................11
3.2.4 CAPACITOR....................................................................................................................................11
3.2.5 MICRO SWITCH ASSEMBLY .........................................................................................................11
3.2.6 COIL ASSEMBLY, SOLENOID .......................................................................................................12
3.2.7 CONTROL PANEL ..........................................................................................................................12
3.2.8 FAN AND MOTOR...........................................................................................................................13
3.2.9 DRAIN PAN .....................................................................................................................................13
3.3 REFRIGERATING CYCLE .......................................................................................................................14
3.3.1 CONDENSER, EVAPORATOR AND CAPILLARY TUBE...............................................................14
3.3.2 ROTARY COMPRESSOR ..............................................................................................................14
3.4 HOW TO REPLACE REFRIGERATION SYSTEM ...................................................................................15
4. TROUBLESHOOTING GUIDE
5. EXPLODED VIEWS
6. REPLACEMENT PARTS LIST
CONTENTS
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...................................................................................................22
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