Refrigeration System

V-5 Compressor:

The V-5 compressor is driven by a belt from the engine crankshaft through the compressor clutch pulley. The compressor pulley rotates freely, without turning the compressor shaft, until an electromagnetic clutch coil is energized. When voltage is applied to energize the clutch coil, a clutch plate and hub assembly is drawn rearward toward the pulley. The magnetic force locks the clutch plate and pulley together as one unit to drive the compressor shaft. Compressor engagement is automatic in Recirculation and Defrost modes. In all other modes, the A/C switch must be on to engage the compressor.

As the compressor shaft turns, the compressor performs two main functions. It compresses the low-pressure refrigerant vapor from the evaporator into a high-pressure, high-temperature vapor. It also pumps refrigerant (and refrigerant oil) through the A/C system. Compressor overhaul procedures are found in V5 Compressor Unit Repair.