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 out
processing tube using a
pair of pliers.
Step 4
Re-braze a copper tube onto processing tube for compressor.To get more details on brazing requirements, please go to page 366
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 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
Perform leakage test on brazed joints of drying- filter and processing pipe on compressor.
Step 8
Vacuum and recharge.Please get more details of vacuuming and gas- charging requirements on page 313
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.
CHECK AND TEST 2
Performance Testing Procedures and Assessment Criteria.
1. Sensor position: Freezer: geometric center of freezer compartment.
2. Test time: 30min to 60min.
3. Stop Gear: compressor-stopping gear must be above the gear listed on the table.
4. Temperature drop must be no less than the value on the table.
DIAGNOSIS 2
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