Focus L4-2.0L SOHC VIN P (2000)
Evaporator Core: Description and Operation
Installation Position In Refrigerant Circuit
At the low-pressure end between the fixed orifice tube and the accumulator/dehydrator. The blower box has to be dismantled in order to remove the
evaporator.
Function
Cooling, drying and cleaning the air.
Construction And Operation
The evaporator is mounted in the evaporator housing behind the heater/air conditioning blower and operates like a heat exchanger. It consists of
numerous cooling coils which are connected by fins.
The refrigerant metered by the fixed orifice tube is sprayed as a low pressure liquid into the evaporator. As soon as the refrigerant comes into contact
with the inner surface of the cooling coils, it vaporizes and extracts heat from the coils. The cooling coils and the entire evaporator undergo considerable
cooling. The vaporous refrigerant is then drawn in by the compressor.
The air flowing through the evaporator is cooled, dried and fed into the passenger compartment by the heater/air conditioning blower.
At the same time, any moisture released is precipitated on the evaporator fins and condenses. The resulting condensed water is drawn off via a drainage
line. Any dust or pollen particles stuck to the evaporator are washed away during this process. As a result, the air is cleaned and dried.