CHECK AND TEST 1


 

PROCEDURE 1


  

Step 1

Disconnect terminals.

Step 2

Pull out earthing wires.

Step 3

Unscrew the mainboard.

Step 4

Pull out the buckle to remove the mainboard.

PROCEDURE 2


PROCEDURE 3


Step 1

Unscrew terminal cover.

Step 2

Remove terminal cover.

Step 3

Disconnect all terminals.

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 exhasuting pipes.

Step 8

Re-braze a copper tube onto processing tube of compressor.

To get more details on brazing requirements,
please go to Annex B1

Note


Step 9

Install quick connector onto re-brazed pipe.

Step 10

Clean paint off brazed joint of drying-filter.

Step 11

Cut off drying-filter.

Step 12

Cut off capillary and shake to remove the cut
end.

Step 13

Braze on a new dryingfilter.

Step 14

Inject nitrogen (1.57Mpa) through quick connector into pipe for at least 3 min to blow remaining refrigerant away.

Step 15

Add quick connector onto processing pipe of
drying-filter.

Step 16

Perform leakage test on brazed joints of dryingfilter and compressor processing pipe.

Step 17

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

Step 18

Block processing pipe twice with locking pliers.

Step 19

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

Step 20

Braze the ends and remove the pliers.

Note


CHECK AND TEST 2


DIAGNOSIS 2


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