CHECK AND TEST 1
Step 1
Discharge refrigerant: cut off the charging tube with pliers.
Step 2
Discharge all refrigerant toward the exhaust vent.
Step 3
Melt brazing material with flame and pull processing tube out using a pair of pliers.
Step 4
Re-braze a copper tube onto compressor processing tube Please get more details of brazing requirements on Annex B1.
Note
Step 5
Install quick connector onto rebrazed pipe.
Step 6
Cut off suction pipe and exhaust pipe.
Step 7
Power on the compressor and test exhaust pressure coming from exhaust pipe with a piece of paper.
Step 8
Test the suction pressure of suction pipe with a piece of paper.
DIAGNOSIS 1
PROCEDURE 1
Step 1
Unscrew terminal cover.
Step 2
Remove terminal cover.
Step 3
Disconnect all terminals.
Step 4
Unscrew earthing wire.
Step 5
Unscrew nut of compressor.
Step 6
Replace with new compressor.
Step 7
Braze the joints of suction and exhaust pipes.
PROCEDURE 2
Step 1
Re-braze a copper tube onto compressor processing tube.
Step 2
Install quick connector onto re-brazed pipe.
Step 3
Clean paint off of brazed joint of drying filter.
Step 4
Cut off the brazed point of drying filter.
Step 5
Cut off capillary and remove the cut end by shaking.
Step 6
Braze on a new drying- filter.
Step 7
Inject nitrogen (1.57Mpa) through quick connector into pipe for at least 3 min to blow remaining refrigerant away.
Step 8
Add quick connector onto processing pipe of drying-filter.
Step 9
Conduct a leakage
test on brazed joints
of drying-filter and
compressor processing
pipe.
Step 10
Vacuum and recharge.
Please get more details
of vacuuming and gascharging
requirements on Annex B2
Step 11
Block processing pipe twice by locking pliers.
Step 12
Leave locked pliers attached to second block and shake to cut off the remaining pipe.
Step 13
Braze the ends and remove the pliers.
DIAGNOSIS 2
GO BACK TO COMPONENT LIST