Vacuum pumping
Use vacuum pump
1. Remove the valve caps on the liquid valve and gas
Lo Hi
valve and the nut of refri- gerant charging vent.
2. Connect the charging hose
RISLH]RPHWHUWRWKHUHIUL
gerant charging vent of gas
valve and then connect the other charging hose to the
vacuum pump. 2SHQWKHSLH]RPHWHUFRP
pletely and operate for
SUHVVXUHRISLH]RPHWHUUH
mains in
4. Close the vacuum pump and maintain this status for
VXUHRISLH]RPHWHUUHPDLQV
in
completely with inner hexagon spanner.
6.Tighten the screw caps of valves and refrigerant charging vent.
7.Reinstall the handle.
Leakage detection
1.With leakage detector:
Check if there is leakage with leakage detector.
2.With soap water:
If leakage detector is not available, please use soap water for leakage detection.
$SSO\VRDSZDWHUDWWKHVXVSHFWHGSRVLWLRQDQGNHHSWKHVRDSZDWHUIRUPRUH
WKDQPLQ,IWKHUHDUHDLUEXEEOHVFRPLQJRXWRIWKLVSRVLWLRQWKHUH VDOHDNDJH
28