Purging method: to use vacuum pump
1 .Detach the service portis cap of
2 .Open the handle at low in gaugemanifold, operate vacuum pump. If the
3 .Vacuumize for over 15min. And check the level gauge which should read
4 .Open the valve rod for the
5 .No gas leakage? | In case of gas leakage, tighten |
| parts of pipe connection. If |
| leakage stops, then proceed 6 |
| steps. |
6 .Detach the charge hose from the service port, open 2- way valve and
7 .To prevent the gas leakage, turn the service ports cap, the valve rodis cap for
Liquid stop valve
| Gas stop valve |
2 way valve |
|
3 way valve | Gauge maifold(R410A) |
| |
| Vacuum pump(R410A) |
Open
Close
2 way valve
3 way valve 900
Service port
900 for 6 sec.
If it does not stop gas leakage, discharge whole refrigerants from the service port. After flaring work again and vacuumize, fill up prescribed refrigerant from the gas
cylinder.
2 way valve
6 3 way valve
6
2 way valve
3 way valve
Valve rod cap
Valve rod cap Service port cap
CAUTION:
If the refrigerant of the air conditioner leaks, it is necessary to make all the refrigerant out. Vacuumize first, then charge the liquid refrigerant into air conditioner according to the amount marked on the name plate.
2 way valve
3 way valve
2 way valve
3 way valve
2 way valve
90o
10s
3 way valve
6.35mm To indoor unit A (1/4")
9.52mm (3/8")
6.35mm To indoor unit B (1/4")
9.52mm (3/8")
6.35mm | To indoor unit C |
(1/4") |
|
9.52mm (3/8")
10