SECTION 22: HEATING AND AIR CONDITIONING
PA1621 Maintenance Manual All Series | Section Revised November 2017
3
6.7
EVACUATINGSYSTEM..................................................................................................................................63
7. SMALLHVACSYSTEM................................................................................................................................64
7.1 SYSTEMCONFIGURATIONH‐SERIES............................................................................................................64
7.2 SYSTEMCONFIGURATIONXSERIES.............................................................................................................64
7.3 AIRCIRCULATION.........................................................................................................................................64
7.3.1 AuxiliaryUnit.......................................................................................................................................65
7.4 SYSTEMOPERATION....................................................................................................................................65
7.4.1 Driver’sUnit.........................................................................................................................................65
7.4.2 AuxiliaryUnit‐H3VIPVehiclesOnly....................................................................................................65
7.5 REFRIGERANTRECOVERY.............................................................................................................................65
7.6 EVACUATINGSYSTEMPRIORADDITIONOFREFRIGERANT(DRIVER’SORAUXILIARYSYSTEM)..................65
7.7 OILADDITION...............................................................................................................................................66
7.8 COMPRESSOROILCONTAMINATION..........................................................................................................66
7.9 OILRETURNOPERATION.............................................................................................................................66
8. PREHEATINGSYSTEM(OPTION).................................................................................................................66
8.1 PREHEATERFUELFILTER..............................................................................................................................67
8.2 OPERATION..................................................................................................................................................67
8.3 PREHEATINGSYSTEMTIMER.......................................................................................................................68
8.3.1 Preheatertimerinstructions................................................................................................................68
8.4 PREHEATERTROUBLESHOOTINGANDMAINTENANCE...............................................................................68
9. SPECIFICATIONS............................................................................................................................... .......... 70
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