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.
To get more details on
brazing requirements,
please go to Annex B1
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
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 and tighten nuts onto compressor.
Step 7
Braze the joints of suction and exhaust pipes.
PROCEDURE 2
Step 1
Clean paint off of brazed joint of drying-filter.
Step 2
Cut off 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 left remaining
refrigerant.
Step 6
Add quick connector onto processing pipe of drying-filter.
Step 7
Do leakage 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 gas-
charging requirements,
on Annex B2
Step 9
Block processing pipe twice by locking pliers.
Step 10
Left locking pliers on the second blocking and cut off the rest pipe by shaking.
Step 11
Braze the ends and remove the pliers away.
DIAGNOSIS 2
