CHECK AND TEST 1
Note
Step 1
Discharge refrigerant:
1) Use pliers to cut off charging tube.
2) Discharge all refrigerant toward the
exhaust vent.
Step 2
Melt brazing material with flame and pull processing tube out with a pair of pliers.
Step 3
Re-braze a copper tube onto compressor processing tube. Please get more details of brazing requirements on Annex B1.
Note
Step 4
Install quick connector onto rebrazed pipe.
Step 5
Cut off exhaust pipe and suction pipe.
Step 6
Power on the compressor and test exhaust pressure coming from exhaust pipe with a piece of paper.
Step 7
Test the suction pressure of suction pipe with a piece of paper.
DIAGNOSIS 1
PROCEDURE 1
Step 1
testo testo
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 on top.
Step 7
Braze the joints of suction and exhaust pipes.
PROCEDURE 2
Step 1
Re-braze a copper
tube onto compressor
processing tube.
Please get more details of brazing requirements on Annex B1.
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 joint 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
Perform leakage test on brazed joints of drying- filter and compressor processing pipe.
Step 10
Vacuum and recharge. Please get more details of vacuuming and gas charging 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.
CHECK AND TEST 2
DIAGNOSIS 2
GO BACK TO COMPONENT LIST