AIR
PURGING
AND
LEAKAGE
TEST
1.Take out the nut cover of the inlet for refrigerant.
2.Connect the tube of the vacuum watch with the vacuum pump, having the low- pressure end linking to the inlet for refri- gerant.
3.Starting the vacuum pump, when the indicator turns to
4.Take out the valve cover of the gas valve and also the one for the liquid valve.
5.Loosing the cord of liquid valve until the pressure rise to 0 bar.
6.Dismantle the tube from the cover of the inlet for refrigerant then, tighten the cover.
7.Loose the valve cord of the gas valve as well as the liquid valve entirely.
8.Tighten the valve cover of the gas valve and liquid valve so as to check whether leakage occurred.
Pressure gauge
Nut
Vacuum pump
Liquid
pipe Gas pipe
Outdoor condensation drainage
When the unit is cooling or defrosting, the waste water formed in the outdoor unit can be drained out reliably through the drain hose.
Installation:
Install the outdoor drain elbow in the 25 mm (1”) hole on the base plate as
shown in Fig.8, and joint the drain hose to the elbow, so that the waste water formed in the outdoor unit can be drained out to a proper place.
Base plate
Outdoor drain elbow
20
