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 processing tube of compressor.
Please find more details of brazing requirements on 10.4 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
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 on top.
Step 7
Weld the joints of suction and exhaust pipes.
PROCEDURE 2
Step 1
Re-braze a copper tube onto processing tube of compressor.To get more details on brazing requirements, please go to the 10.4 Annex B1
Step 2
Install quick connector onto re-brazed pipe.
Step 3
Clean paint off of brazed j oint 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.
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
Do leakage test on brazed joints of drying-filter and processing pipe on compressor.
Step 10
Vacuum and recharge. Please get more details of vacuuming and gascharging requirements on 10.5 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
