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