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 out processing tube 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 up the compressor and feel the exhaust pressure from the exhaust pipe with a piece of paper.
Step 8
Feel the suction pressure of the suction pipe using a piece of paper.
DIAGNOSIS 1
PROCEDURE 1
Step 1
Unscrew terminal cover.
Step 2
Remove terminal cover.
Step 3
Remove protector and starter.
Step 4
Unscrew earthing wire.
Step 5
Unscrew nut of compressor.
Step 6
Install a new compressor and tighten nuts onto compressor.
Step 7
Braze the joints of suction and exhasut pipes.
Step 8
Re-braze a copper tube onto compressor processing tube.
Please get more details
of brazing requirements
on Annex B1
Note
PROCEDURE 2
Step 1
Clean paint off brazed joint of drying-filter.
Step 2
Cut off drying-filter.
Step 3
Cut off capillary and shake to remove the cut end.
Step 4
Braze on a new drying-filter.
Step 5
Inject nitrogen (1.57Mpa)
through quick connector
into pipe for at least
3 min to blow remaining
refrigerant away.
Step 6
Add quick connector onto processing pipe of drying-filter.
Step 7
Perform leakage test on brazed joints of drying- filter and compressor processing pipe.
Step 8
Vacuum and recharge.
Step 9
Block processing pipe twice by locking pliers.
Step 10
Leave locking pliers on the second blocking and cut off the rest pipe by shaking.
Step 11
Braze the ends and remove the pliers away.
CHECK AND TEST 2
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