CITROEN C6 Technical Information PDF herunterladen (Seite 217)

211

AIR

CONDITIONING

CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM

Reminder (for information)

Under-cooling.

The under-cooling represents the difference between the condensation temperature and the aircon fluid temperature at the aircon condenser outlet.

The under-cooling gives the quantity of aircon fluid (in the liquid state) in the air conditioning circuit.

Values for under-cooling (SR).

Values Origins Solutions

SR < 2°C Lack of aircon fluid in the aircon condenser

Add some aircon fluid

2°C < SR <4°C Lack of aircon fluid in the aircon condenser

4°C < SR < 10°C/12°C Correct quantity

SR > 10°C/12°C

Excess aircon fluid in the aircon condenser Remove some aircon fluid

SR > 15°C

Over-heating.

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 Origins Solutions

2° < SC < 15°C Correct quantity

SC > 15°C Lack of aircon fluid in the cooling circuit Add some aircon fluid

SC < 2°C Excess aircon fluid in the cooling circuit Remove some aircon fluid

Blown air temperature.

The blown air temperature should be between 2°C and 10°C.

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CITROEN C6 Technical Information Seite 217