CHECK AND TEST 1
Note
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 out
processing tube using a pair of pliers.
Step 4
Re-braze a copper tube onto compressor processing tube. To get more details on brazing requirements, please go to 10.4 Annex B1
Note
Step 5
Install quick connector onto re-brazed pipe.
Step 6
Inject nitrogen gas with 1.57Mpa pressure through quick connector into pipe.
Step 7
Use pliers to cut the capillary off.
Step 8
Check if gas is blowing out from capillary
DIAGNOSIS 1
PROCEDURE 1
Step 1
Clean paint from brazed joint of drying-filter.
Step 2
Cut off drying-filter.
Step 3
Cut off capillary and shake to remove the cut end.
Step 4
Braze on a new dryingfilter.
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
Perform leakage test on brazed joints of dryingfilter and processing pipe on compressor.
Step 8
Vacuum and recharge. Please get more details of vacuuming and gascharging requirements on 10.5 Annex B2
Step 9
Block processing pipe twice with locking pliers.
Step 10
Leave locking pliers on the second block and cut off the rest of the pipe by shaking.
Step 11
Braze the ends and remove the pliers.
DIAGNOSIS 2
