Note
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.
Click below link to get
more details for brazing
requirements, go to Annex B1
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
Disconnect all terminals.
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
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 drying-filter.
Step 5
Cut off capillary and shake to remove the cut end.
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
Perform leakage test on brazed joints of drying- filter and compressor processing pipe.
Step 10
Vacuum and recharge.
Click below link to get more details for
vacuuming and gas-
charging requirements,
go to Annex B2
Step 11
Block processing pipe twice by locking pliers.
Step 12
Leave locking pliers on the second block and cut off the rest of the pipe by shaking.
Step 13
Braze the ends and remove the pliers.
DIAGNOSIS 2
ATTENTION
Make sure there is sufficient refrigerant before going to next priority.
GO BACK TO COMPONENT LIST