5. Close quickly the valve as soon as the set amount is charged.
6.
7.
11. LEAKAGE TEST AND RUNNING TEST
1.
Note:
2. Connect the plug with power supply.
3.
Note:
Leak detector should be the one for exclusive - use for HFC-134a.
12. PINCH-OFF SEAL OF CHARGE PIPE
13. FINISHING
1.
1.
2.
2.
3.
3.
4.
5.
Set the starting Relay and the overload protector. And run the compressor until pressure
reading at the low pressure gauge shows 0 so that remaining refrigerant in the charge hose
is taken in the refrigerating unit.
Close the control valve and disconnect the coupler socket at Low pressure side.
Confirm that no gas is leakage from the
brazed part by the leak detector or soup water.
Confirm that no gas leakage from the
sealed part.
Do not make the compressor run when to do
leakage test. While compressor is running,
since the inside piping at low pressure side is
vacuum the state, gas leakage can not be
found out. What's worse, the soup water may
leak into the
refrigerating unit and it may
cause a malfunction.
After running the compressor for 3 minutes, confirm that there is a sound of refrigerant
flowing and piping at high pressure side gets hot.
Pinch both charge pipe compressor and
Draye use Pinch Plier.
Unlock the lever of coupler plug and
remove cover plug.
set the compressor retainer, Cover relay
and pin wire.
Confirm that pipings in the compressor
room do not touch each other.
Run the compressor and confirm that there
is no vebration in the pipings.
Pinch the end of carge pipe use Pinch
Plier.
Seal up the end of charge pipe by
melting and complete the sealing by
Brazing.
Pinch-0ff Plier
Coupler Plug
(one-touch type)
Coupler Socket
-18-
