NOTE
CHECK AND TEST 1
Step 1
Discharge refrigerant. Cut off the charging tube with pliers.
Step 2
Release 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.
Note
Step 5
Install quick connector onto re-brazed pipe.
Step 6
Use pliers to cut the capillary off.
Step 7
Inject nitrogen (1.57Mpa)
through quick connector
into pipe for at least
3 min to blow left
refrigerant.
Step 8
Check whether oil is being ejected from the capillary using a piece of white paper.
DIAGNOSIS 1
CHECK AND TEST 2
Step 1
Cut off exhausting pipe
to check whether oil
is being ejected from
compressor.
DIAGNOSIS 2
PROCEDURE 1
Step 1
Inject nitrogen (1.57Mpa)
through quick connector
into pipe for at least
3 min to blow remaining
refrigerant away.
PROCEDURE 2
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 3
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.
Step 6
Add quick connector onto processing pipe of drying-filter.
Step 7
Perform a leakage
test on brazed joints
of drying-filter and
compressor processing
pipe.
Step 8
Vacuum and recharge.
Click below link to
get more details for
vacuuming and gas-
charging requirements,
go to Annex B2
Step 9
Block processing pipe twice with locking pliers.
Step 10
Leave locking pliers on the second block and cut off the rest of the pipe by shaking.
Step 11
Braze the ends and remove the pliers.
DIAGNOSIS.
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