CHECK AND TEST 1

Step 1

When listening, it is evident that the
compressor is louder than normal.

PROCEDURE 1

Step 1

Discharge refrigerant.

Step 2

Discharge all refrigerant toward the exhaust vent.

Step 3

Cut off suction pipe and exhaust pipe.

Step 4

Pull up to remove inverter box.

Step 5

Disconnect terminals.

Step 6

Disconnect power cord.

Step 7

Unscrew earthing wire.

Step 8

Unscrew nut on compressor.

Step 9

Install a new compressor on top.

Step 10

Braze the joints of suction and exhaust pipes.

DIAGNOSIS 1
PROCEDURE 2

Step 1

Re-braze a copper tube onto processing tube of
compressor.
To get more details on brazing requirements, please go to Annex B1

Step 2

Install quick connector onto re-brazed pipe.

Step 3

Remove paint from brazed joint for drying-filter.

Step 4

Cut off leaking brazed joint.

Step 5

Cut off capillary and remove the cut end by
shaking.

Step 6
Braze on a new drying-filter.

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

Test for leaks on brazed joints of drying-filter and processing pipe on compressor.

Step 10

Vacuum and recharge.
Click below link to get more details for vacuuming and gascharging requirements,
on 10.5 Annex B2.

Step 11

Block processing pipe twice with locking pliers.

Step 12

Leave locking pliers on the second block and
cut off the rest of the pipe by shaking.

Step 13

Braze the ends and remove the pliers.

CHECK AND TEST 2
DIAGNOSIS 2

GO BACK TO COMPONENT LIST