２
３
Installation service- Install outdoor unit
Outdoor condensation drainage (Heat pump type only)
When the unit is heating, the condensing water
and defrosting water can be drained out reliably
Installation: Install the outdoor drain elbow in
25
hole on the base plate,and joint the drain hose to the
elbow, so that the waste water formed in the outdoor
Ø
Chassis
Outdoor drain elbow
through the drain hose.
９．
If possible, adopt vacuum pump vacuum the air from the gas stem.
(As show in Fig.13)
Valve cap
ｇａｕｇｅ
Ｖａｃｕｕｍ
Liquid pipe
Gas pipe
Ｖａｃｕｕｍ
unit can be drained out to a proper plate.
８．
Tighten the valve cover, use the soap water or leakage detector to test,
the outdoor unit and pipeline connection leak or not.
Ｆｉｇ．
１３
ｐｕｍｐ
Air purging and leakage test
１．
Take out the nut cover of the inlet for refrigerant.
２．
Align the center of the piping and tighten the conical nut with hands.
３．
Tighten the conical nut with spanner.
４．
Take off the valve cover of liquid valve and gas valve and nut of Freon charge nuzzle.
５．
Loosen the valve stem of liquid valve with a hex wrench. Push the check valve core of
gas valve to discharge air and moisture remaining in refrigerant system.
６．
After 15
seconds, stop pushing the valve core as soon as the
refrigerant starts to be discharged, and reinstall the service port nut.
７．
Open the stem of liquid valve and gas valve completely. (As show in Fig. 12)
Ｆｉｇ．
１２
Gas pipe
Liquid pipe
Liquid valve
Hexagon
Gas valve
Freon charge nuzzle
Screwdriver
