HVAC CONTENTS 1 TECHNICAL SPECIFICATIONS ................................................................................................................ 1 2 TIGHTENING TORQUES............................................................................................................................ 2 3 PRECAUTIONS .......................................................................................................................................... 5 4 HVAC UNIT EXPLODED VIEW.................................................................................................................. 6 5 HVAC SYSTEM LAYOUT AND WORKING............................................................................................... 7 6 COMPONENTS OF HVAC SYSTEM.......................................................................................................... 9 A. CONTROL PANEL ................................................................................................................................... 9 B. HVAC UNIT ............................................................................................................................................ 12 C. BLOWER RESISTER............................................................................................................................. 13 D. CONDENSOR AND RECEIVER DRIER................................................................................................ 16 E. CONDENSER SEALING DUCTS .......................................................................................................... 16 F. PRESSURE SENSOR............................................................................................................................ 16 7 TROUBLESHOOTING.............................................................................................................................. 18 8 MAINTENANCE ........................................................................................................................................ 32 9 ON VEHICLE REMOVAL.......................................................................................................................... 39 A. CONTROL PANEL ASSEMBLY............................................................................................................. 39 B. COMPRESSOR...................................................................................................................................... 43 C. BLOWER................................................................................................................................................ 43 D. BLOWER RESISTER............................................................................................................................. 44 E. AIR FILTER ............................................................................................................................................ 44 F. TXV......................................................................................................................................................... 45 G. PRESSURE SENSOR ........................................................................................................................... 46 H. HVAC UNIT ............................................................................................................................................ 46 I. CONDENSOR SEALING DUCT .............................................................................................................. 47 J. CONDENSOR......................................................................................................................................... 47 10 REFRIGERANT HOSES/PIPES LAYOUT ............................................................................................... 48 11 DO’S & DONT’S ........................................................................................................................................ 49
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