TABLE OF CONTENTS 1. TECHNICAL SPECIFICATIONS ................................................................................................................1 2. TIGHTENING TORQUES...........................................................................................................................3 3. PRECAUTIONS ..........................................................................................................................................5 4. HVAC SYSTEM LAYOUT AND WORKING ...............................................................................................7 5. COMPONENTS OF HVAC.......................................................................................................................10 A. CONTROL PANEL..............................................................................................................................10 B. HVAC UNIT.........................................................................................................................................12 C. COMPRESSOR..................................................................................................................................14 D. CONDENSER AND RECEIVER DRIER.............................................................................................15 E. ON VEHICLE INSPECTION (WITHOUT DISMANTLING HVAC UNIT).............................................15 F. TRINARY PRESSURE SWITCH / PRESSURE SENSOR.................................................................16 G. AIR INLET ACTUATOR ......................................................................................................................17 6. TROUBLESHOOTING..............................................................................................................................18 7. MAINTENANCE........................................................................................................................................32 A. PRELIMINARY INSPECTION............................................................................................................32 B. REGULAR MAINTENANCE...............................................................................................................34 8. ON VEHICLE REPAIRS...........................................................................................................................39 A. CONTROL PANEL ASSEMBLY..........................................................................................................39 B. COMPRESSOR REMOVAL AND ASSEMBLY...................................................................................44 C. BLOWER REMOVAL AND ASSEMBLY..............................................................................................44 D. LPM REMOVAL AND ASSEMBLY......................................................................................................45 E. AIR FILTER REMOVAL AND ASSEMBLY..........................................................................................45 F. TXV.....................................................................................................................................................48 G. PRESSURE SENSOR .......................................................................................................................49 H. HVAC UNIT.........................................................................................................................................49 CONDENSER SEALING DUCT.........................................................................................................50 I. J. CONDENSER.....................................................................................................................................51 9. REFRIGERANT HOSES/PIPES...............................................................................................................52 DO’S & DONT’S......................................................................................................................................53 10. HVAC W/O ETC
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