remove evaporator Citroen C4 2005 2.G Workshop Manual

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AIR
CONDITIONING
CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM
Interpretation of the measurements.
«m»:High pressure.«s»: Over-heating (SC).
«n»:High temperature.«t»:Ambient air temperature.
«p»:Under-cooling (SR).«u»:Blown air temperature.
«q»:Low pressure.«v»:Humidity.
«r»: Low temperature.«w»: Temperature T3.
Over-heating (SC).
The over-heating represents the difference between the aircon fluid temperature at the evaporator outlet
and the evaporation temperature.
The over-heating gives the quantity of aircon fluid (in the liquid state) in the air conditioning circuit
Values for over-heating (SC).
Values «s» Origins Solutions
2° < SC < 15°CCorrect quantity
SC > 15°CLack of aircon fluid in the cooling circuitAdd some
aircon fluid
SC < 2°CExcess aircon fluid in the cooling circuitRemove some
aircon fluid
Blown air temperature «u».
The blown air temperature should be between 2°Cand 10°C.
E5AP2FBC
Angl.-t2-page428-456-2005 9/01/06 10:25 Page 441