NOTE
NOTE
CHECK AND TEST 1
Step 1
Discharge refrigerant: cut off 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 with a pair of pliers..
Step 4
Re-braze a copper tube onto processing tube of compressor. To get more details on brazing requirements, please go to 10.4 Annex B.
NOTE
Step 5
Install quick connector onto re-brazed 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 exhaust pipes.
PROCEDURE 2
Step 1
Melt brazing material with flame and pull out
processing tube using a pair of pliers.
Step 2
Re-braze a copper tube onto compressor processing tube.
Step 3
Clean paint off brazed joint of drying-filter.
Step 4
Cut off drying-filter.
Step 5
Braze on a new dryingfilter.
Step 6
Inject nitrogen (1.57Mpa) through quick connector into pipe for at least 3 min to blow remaining refrigerant away.
Step 7
Add quick connector onto processing pipe of
drying-filter.
Step 8
Perform leakage test on brazed joints of dryingfilter and compressor processing pipe.
Step 9
Vacuum and re-charge. Please get more details
of vacuuming and gascharging requirements
on 10.5 Annex B2.
Step 10
Block processing pipe twice by locking pliers.
Step 11
Left locking pliers on the second blocking and
cut off the rest pipe by shaking.
Step 12
Braze the ends and
remove the pliers away.
DIAGNOSIS 2
