CHECK AND TEST 1

Follow the proedure 1 on
next page to open nverter
box.

PROCEDURE 1

Step 1

Pull upwards to remove inverter box.

Step 2

Disconnect terminals.

Step 3

Disconnect power cord.

Step 4

Disconnect earthing wires.

PROCEDURE 2

DIAGNOSIS 1

PROCEDURE 3

Step 1

Discharge refrigerant. Cut off the charging tube with pliers.

Step 2

Release all refrigerant toward the exhaust vent.

Step 3

Cut off exhaust pipe and suction pipe.

Step 4

Unscrew nut of compressor.

Step 5

Install a new compressor and tighten nuts onto compressor.

Step 6

Braze the joints of suction and exhausting pipes.

Step 7

Re-braze a copper tube onto compressor processing tube. 

Click below link to get more details for brazing requirements, go to Annex B1

NOTE

PROCEDURE 4

Step 1

Clean paint off 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 left 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 compressor processing pipe.

Step 8

Vacuum and recharge. Click below link to get more details for vacuuming and gas-charging requirements, go to 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

GO BACK TO COMPONENT LIST