CHECK AND TEST 1

Note


Step 1

Discharge refrigerant:
1) Use pliers to cut off charging tube.
2) Discharge all refrigerant toward the exhaust vent.

Step 2

Melt brazing material with flame and pull processing tube out with a pair of pliers.

Step 3

Re-braze a copper tube onto compressor processing tube.Please get more details of brazing requirements on Annex B1.

Note


Step 4

Use pliers to cut the capillary off.

Step 5

Inject nitrogen (1.57Mpa) through quick connector into pipe

Step 6

Check to see if gas can blow out of capillary.

Step 7

Cut off exhaust pipe to check whether oil is coming out from the compressor.

DIAGNOSIS 1

PROCEDURE 1

Step 1

Unscrew terminal cover.

Step 2

Remove terminal cover.

Step 3

Remove protector and starter.

Step 4

Unscrew earthing wire.

Step 5

Unscrew nut of compressor.

Step 6

Install a new compressor on top.

Step 7

Braze the joints of suction and exhaust pipes.

PROCEDURE 2

Step 1

Re-braze a copper tube onto compressor processing tube. Please get more details of brazing requirements on Annex B1.

Step 2

Install quick connector onto re-brazed pipe.

Step 3

Clean paint off of brazing point for drying filter.

Step 4

Cut off the brazed joint of drying filter.

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

testo testo

Step 9

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

Step 10

Vacuum and recharge. Please get more details of vacuuming and gas charging requirements on Annex B2

Step 11

Block processing pipe twice by locking pliers.

Step 12

Leave locked pliers attached to second block and shake to cut off the remaining pipe.

Step 13

Braze the ends and remove the pliers.

CHECK AND TEST 2

DIAGNOSIS 2

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