Table of Contents
Advertisement
CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM
Interpretation of the measurements.
«m»: High pressure.
«n»: High temperature.
«p»: Under-cooling (SR).
«q»: Low pressure.
«r»: Low temperature.
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 «p»
2° < SC < 15°C
SC > 15°C
SC < 2°C
Blown air temperature «u».
The blown air temperature should be between 2°C and 10°C.
E5AP2FBC
«s»: Over-heating (SC).
«t»: Ambient air temperature.
«u»: Blown air temperature.
«v»: Humidity.
«w»: Temperature T3.
Origins
Correct quantity
Lack of aircon fluid in the cooling circuit
Excess aircon fluid in the cooling circuit
338
Solutions
Add some
aircon fluid
Remove some
aircon fluid
Advertisement
Table of Contents
