Caple WI152, Technical Information

Page: 23 / 27

19/23
2>.
If the default is concentrated on the cooling system, the checking procedure is as below.
a.
Cut off the discharge pipe (See Fig.13, E) of the compressor, and infuse 0.8-1.5 MP nitrogen per
process pipe, and put the hand close to the cut kerf. If there is a little gas leak from the terminal, it
means normal, otherwise it is jammed.
b .
Make sure the capillary is working normally. Then reconnect the discharge pipe, and infuse
0.8-1.5 MP nitrogen from process pipe, then test the leakage , check with soap water if the cooling
system of the soldering point is damaged. Check from the soldering point around the
compressor
(Fig.13)
, if it is OK, then check the soldering point of the evaporator
(Fig.16 )
, before
check please remove the air-duct board, please see the remove method and procedure in
( →6.1.2 )
c.
If all the soldering point in b is not leaking, there are two possibility, one is leakage in the inner
condenser (or anti- dew pipe), another is the damage on the spare parts in the cooling system. If it is
the inner damage, it can not be repaired, and if the damage on the spare parts, replace them.
3>. M
ake sure there is no leakage in the cooling system, infuse the refrigerant.
7.3.
Refill the refrigerant:
1>.
Using the vacuum pump form a vacuum in the system, via the joints of the low-pressure pipe, the
low-pressure pipeline is on the process pipe of the compressor
(Fig.13, C)
. Apply the vacuum pump for
approximately 20 minutes. Until the vacuum is lower than 100Pa.
2>.
Fill Cooling system with refrigerant via the process pipe of the compressor
(Fig.13, C)
. (Regarding
refrigerant quantity Please refer to the instruction at back label of wine cellar). Then solder the
compressor process pipe after the system is charged with refrigerant.
7.4.
Running test:
After the procedures above finish, turn the unit on. To verify the effectiveness of the repair, monitor the unit,
the compressor should automatically stop or - 2.5 deg centigrade of the set temperature within
approx 3 hours (assuming an ambient temperature of 32
℃
and the unit is empty).