Insufficient Cooling

Performance Data

General performance characteristics for the CFC-12 (R-12) A/C system and the retrofit A/C system differ. These differences are outlined below.

Recirculating-to-discharge air temperature

^ The retrofitted A/C system retains the original CFC-12 (R-12) heat exchanger (evaporator and condenser).
^ Some CFC-12 (R-12) lubrication oil remains in the A/C system.
^ Because of these two stated reasons, the retrofit A/C system has a slightly lower cooling capacity than the CFC-12 (R-12) A/C system. [Maximum discharge air temperature is increased by approximately 2~C (3.6~F).]

Ambient air temperature-to-operating pressure

The retrofit A/C system has a higher operating pressure than the CFC-12 (R-12) A/C system when the outside air temperature exceeds 15~C (59~F).

^ High-pressure side (Discharge side): Maximum pressure increase of approximately 294 kPa (3 kg/sq.cm, 43 psi)
^ Low-pressure side (Suction side): Same as CFC-12 (R-12) A/C system Refer to Service Manuals for discharge air temperature and operating pressure values for individual vehicle models. Refer to these Manuals for CFC-12 (R-12) A/C system values.