SSANGYONG 2004 Rexton 2.7XDi Workshop Manual page 1485

1. Tighten both high pressure and low pressure completely
before evacuating the charging valve.
2. Connect the tap valve of the refrigerant tank.
3. Open the high pressure valve and turn the refrigerant tank
upside down.
4. The discharging pressure increases when the charging
valve charges excessively, so charge the charging valve
to the specified amount with measuring the weight of the
refrigerant before closing the high pressure valve.
5. Charge the specified amount of the refrigerant and then
close the valve of the manifold gauge. Check the system
for any leak.
Operation check
Notice
Operation Check is recommended before removing the
manifold gauge.
1. Install the manifold gauge set.
2. Run the engine at 2,000 rpm and set the blower switch
at 'HI' and A/C switch 'ON'. Set the temperature control
lever at 'COOL'.
3. Keep opening all of the window and door.
4. Place a dry bulb thermometer to the front duct.
5. Place a psychrometer close to the inlet of the cooling
unit.
6. Check the high pressure gauge reading within
2
14 ~ 16 kg/cm
If the reading indicates high excessively, spray the water
to the condenser.
If the reading indicates low excessively, cover the
condenser with the towel.
7. Check the temperature of air inlet within 25 ~ 35°C.
8. Calculate the relative humidity from the psychrometic
graph comparing the wet/dry temperature at the air inlet.
9. Measure the wet/dry temperature at the cold air outlet
and calculate the temperature difference of the dry bulb
between the inlet and the outlet.
10. Check the cross point of the relative humidity and check
the temperature difference between the black line. If the
cross point is located between the black line, the cooling
performance is normal.
A/C SYSTEM
REXTON SM - 2004.4
10C-19
Relative Humidity (%)
Y220_10C028
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN