Leak Test - Vivax ACP-56COFM164GEEI User Manual

1) Unscrew the coping plate, front side plate, right connection board and front connection board.
2) The refrigerant pipes can be installed in four directions, please choose the proper direction.
3) Knock the holes in the plate of the chosen direction with the drill and hammer.
4) Connect the pipes to the stop valves.
5) Bend the pipes to go through the knockout holes.
6) Cover the through-holes with sealing materials to prevent the water, dust or small animals
going into the outdoor unit.

Leak Test

6.7
1) Please make sure that the stop valves of the outdoor unit are closed during the operation.
2) The leak test should be made by pressurizing nitrogen gas.
3) Open the pressure reducing valve, pressurize the connection pipes to 1.0 MPa (10 bar)
slowly, wait ten minutes, and make sure that the pressure will not drop.
4) Rise the pressure to 4.0 MPa (40 bar) slowly, wait 24 hours, and make sure the pressure will
not drop.
5) If the pressure does not decrease, the pipes have passed the test. Otherwise, look for where
the gas leaks from.
NO.
Outdoor
Name
unit
1
2
Pressure
reducing
valve
Fig. 17
3
Liquid side stop
Nitrogen
valve
17
4 5
Gas side stop
valve