A/C Evaporator Core

NOTE: Replacement of the suction accumulator/drier is not required when repairing the air conditioning system except when there is physical evidence of system contamination from a failed A/C compressor or damage to the suction accumulator/drier.

The A/C evaporator core is the plate/fin type with a multi-pass refrigerant flow path as follows:

• A mixture of refrigerant and oil enters the bottom of the A/C evaporator core through the inlet tube.
• There refrigerant is routed so that it flows upward through the partitioned first three plate/fin sections.
• The next four plate/fin sections are partitioned to force the refrigerant to flow downward toward the bottom of the A/C evaporator core .
• The refrigerant then continues over to the remaining five plate/fin sections.
• Finally refrigerant moves upward and out of the A/C evaporator core through the outlet tube.