Caple WC6218, Техническая информация

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20/23
1>.
Cut off process pipe and check the refrigerant. If there is not enough refrigerant, the default of the
refrigerant system should be caused by the leaking. If the refrigerant is sufficient., it is probably
block in the capillary.
2>.
If the default is concentrated on the cooling system, the checking procedure is as below.
a.
Cut off the discharge pipe (See Fig.17 item F) 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 points around
the compressor
(Fig.17)
, if it is OK, then check the soldering point of the
evaporator
(Fig.7 )
, 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>. Make sure the systems is not any leakage, refill it.
7.3.
Refill the refrigerant:
1>.
Using the vacuum pump form a vacuum in the system, via the joints of the high/low-pressure pipe,
the low-pressure pipeline is on the process pipe of the compressor
(Fig.17 showing B)
,
high-pressure pipeline is on the process pipe of the filter. Apply the vacuum pump for
approximately 20 minutes. Until the vacuum is lower than 100Pa. Then solder the process pipe of
the filter. Keep the vacuum running while soldering this joint
2>.
Fill Cooling system with refrigerant via the process pipe of the compressor
(Fig.17 showing B)
.
(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).
7.5. Noise problem
1 Compressor noise
1>.
The working of motor and piston motion will cause noise when compressor working. So if
noise is steady and not exceeds 42 dB, it
’
s normal. If noise is not steady or very high, it
’
s
compressor fault and it should be maintained or replaced.
（→ 6.2.3 ）
2>.
If compressor
’
s shock absorption rubber is hardening or damaged, or fixing screw of
compressor is too tight or loose, it will cause noise. The settlement is to change new shock
absorption rubber or adjust fixing screws.
（→ 6.2.3 ）