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. Please find more details of brazing requirements, on 10.4 Annex B1.
Step 5
Install quick connector onto re-brazed pipe.
Step 6
Cut off exhaust pipe and suction pipe.
Step 7
Power on the compressor and test exhaust pressure coming from exhaust pipe with a piece of paper.
Step 8
Test the suction pressure of suction pipe with a
piece of paper.
PROCEDURE 1
Step 1
Pull up to remove inverter box.
Step 2
Disconnect terminals.
Step 3
Disconnect power cord.
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.
Step 8
Re-braze a copper tube onto processing tube of
compressor. To get more details on brazing requirements, please go to 10.4 Annex B1.
Step 1
Clean paint off of brazed joint of drying filter.
Step 2
Cut off the brazed joint of drying filter.
Step 3
Cut off capillary and remove the cut end by
shaking.
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 away.
Step 6
Add quick connector onto processing pipe of
drying-filter.
Step 7
Do leaking test on brazed joints of
drying-filter and processing pipe on
compressor.
Step 8
Vacuum and recharge. Click below link to
get more details for vacuuming and gascharging requirements,
on 10.5 Annex B2.
Step 9
Block processing pipe twice by locking pliers.
Step 10
Leave locked pliers attached to second block and shake to cut off the remaining pipe.
Step 11
Weld the ends and remove the pliers.
DIAGNOSIS 2
GO BACK TO COMPONENT LIST