Comfortstar Service manual for 13seer Cooling Only Condensing
12
Maintenance after the using season:
4)
Clean the body of the outdoor;
5)
Proper protection of the outdoor;
6)
Turn off the power supply.
Notice
When testing the piping system,do not mix the Oxygen and Acetylene into the piping system.
Pls use Nitrogen or Refrigeration to keep the testing safe.
7. Service And Troubleshooting
7.1. Fill more oil into Compressor
Processing
：
1
）
Collecting the refrigeration under cooling model,fasten up the big and small vavles;
2
）
Disconnecting the bigger copper pipe and valve with welding torch;
3
）
Filling the oil to the copper pipe;
4
）
Welding the copper pipe together with the vavle;
5
）
Vacuumizing then keep pressure for 30 minutes;
6
）
Open the two valves;
7
）
Turn on the unit.
7.2 Compressor replacement:
Processing:
1
）
Switching off the power supply of the outdoor unit,make marks for each wires when removing the
power cord of the compressor,;
2
）
Loosening the bolts of the compressor;
3
）
Disengage the Discharge pipe from the vent of the Compressor;
4
）
Disengage the suction pipe from the inspiratory end of the compressor;
5
）
Put the new compressor on the right place,pull out all of the rubber plugs,and connect the pipes
after that,first the discharge pipe then the suction pipe.Pls do weld the pipes immediately after you
pull out the rubber plugs or else the water vapor may enter into the compressor. When welding the
pipes pls be with Nitrogen and the pressure of the Nitrogen is 1.0~3.0kgf/cm2
。
6
）
Resume the system as the condition before the compressor replacement;
★
When connect the power cord of the compressor,turn it on once to test whether it rolls back.(If
rollback,there will be depressing sound from it.)
★
If there is any leakage of the lubricating oil,pls fill more.
Notice:Usually the discharge pipe is thin and there is at least one U bend in the pipe,so we
disengage
this pipe first when replace the compressor.
7.3 Maintenance when Refrigeration leakage:
Best hermetic system is the base of the reliable function.When there is leakage,turn off the system
