Impreza Outback Sport AWD F4-2.5L SOHC (2002)
Evaporator Case: Description and Operation
COOLING UNIT
The heater unit and cooling unit are integrated into a single "heater and cooling unit".
The cooling section components of this unit include an evaporator, expansion valve, and case.
EVAPORATOR
The evaporator is a laminated type.
When a low-pressure, low-temperature refrigerant is sprayed by the expansion valve into the evaporator, it evaporates and cools the evaporator surfaces.
The cabin air is drawn by the blower and cooled down as it flows over the evaporator. The cooled air then flows passing through the heater unit and
delivered into the cabin through versions outlets.
