PROCEDURE 1


Step 1

Unscrew bottom
attachment.

Step 2

Unscrew top
attachment.

Step 3

Remove the plastic
guider cover.

Step 4

Unscrew the plastic
guider.

Step 5

Hold cabinet and pull
appliance out.

Note:
Reverse procedures
above to install the
appliance.

CHECK AND TEST 1

Step 1

Check reworking record.

Step 2

Check to see if
compressor running ratio
is close to 100%.

DIAGNOSIS 1


PROCEDURE 2

Note


Step 1

Discharge refrigerant:
use pliers to cut off
charging tube.

Step 2
Discharge all refrigerant
toward the exhaust vent.

Step 3

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

Step 4

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

Note


Step 5

Install quick connector
onto re-brazed pipe.

Step 6
Inject nitrogen of
1.57Mpa through quick
connector into pipe.

CHECK AND TEST 2

Step 1

Please refer to drawing
below to perform
leakage test on brazed
joints in compressor
niche.

DIAGNOSIS 2


Note


DIAGNOSIS 1

Step 1

Clean paint off of brazed
joint.

Step 2

Cut off brazed joint with
leakage.

Step 3

Use a bigger copper
tube to connect 2 ends
of brazed joint.

Step 4

Braze the 2 ends.
Please get more details
of brazing requirements
on Annex B1

Step 5

Inject nitrogen at
1.57Mpa through quick
connector into pipe
and use soapy water
to perform leakage test
again;

DIAGNOSIS 3


CHECK AND TEST 3


Step 1

Braze a piezometer
onto processing tube of
compressor.

Step 2
Charge nitrogen of
1.57Mpa through quick
connector into pipe.

Step 3

Do leakage test on
brazing points and
piezometer.

DIAGNOSIS 4


CHECK AND TEST 4


Step 1

Give the system
1.57Mpa Nitrogen, and
then observe if there is
rust and/or spotted holes
on pipes of compressor
niche and evaporator.

Step 2

If it seems like there is a
hole there, apply soapy
water to the rusty area to
check.

DIAGNOSIS 5


PROCEDURE 4


Step 1

Clean paint off of brazed
joint of drying filter.


Step 2
Cut off the drying-filter.

Step 3

Cut off capillary and
remove the cut end by
shaking.


Step 4
Braze on a new dryingfilter.

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

Do 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 gascharging
requirements
on Annex B2

Step 9

Block processing pipe
twice by locking pliers.

Step 10

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

Step 11

Braze the ends and
remove the pliers.

DIAGNOSIS 6


GO BACK TO COMPONENT LIST