ALTROZ SERVICE MANUAL

HVAC (ETC) CONTENTS 1 HVAC SYSTEM LAYOUT...........................................................................................1 2 TECHNICAL SPECIFICATIONS.................................................................................2 3 TIGHTENING TORQUES............................................................................................6 4 PRECAUTIONS ..........................................................................................................8 5 HVAC SYSTEM LAYOUT AND WORKING ...............................................................9 6 CONTROL PANEL....................................................................................................11 7 WORKING / FUNCTION OF ETC .............................................................................12 8 CONNECTOR DETAILS ...........................................................................................14 9 HVAC UNIT COMPONENTS ....................................................................................15 A BLOWER..................................................................................................................... 15 B EVAPORATOR COIL AND TXV (THERMAL EXPANSION VALVE) ............................ 15 C TXV (THERMOSTATIC EXPANSION VALVE) ............................................................ 15 D HEATER COIL ............................................................................................................ 16 10 COMPRESSOR ........................................................................................................16 11 CONDENSOR ...........................................................................................................17 12 RECEIVER DRIER (R.D) ..........................................................................................17 13 TRINARY PRESSURE SENSOR..............................................................................17 14 TROUBLESHOOTING..............................................................................................18 15 MAINTAINANCE.......................................................................................................28 A PRELIMINARY INSPECTION ..................................................................................... 28 B REGULAR MAINTENANCE ........................................................................................ 30