Vollrath Stoelting E131-OT2, Руководство по обслуживанию, Страница: 40 / 61

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5.8 FILTER DRIER
The filter drier must be replaced every time the refrigeration
system is opened for service. A new filter drier improves
operation of the entire refrigeration system by stopping the
circulation of moisture and by removing harmful contami-
nants (Refer to Figure 5-13).
FILTER DRIER REMOVAL
A. Recover refrigerant charge per instructions in
Section 5.2.
B. Cut the refrigeration line as close to the filter drier
as possible and remove drier.
C. Cap the ends of the drier using the plugs from the
new drier.
NOTE
The drier must be capped to prevent moisture from
the environment
FILTER DRIER REPLACEMENT
A. Position the filter drier so the arrow is pointing
toward the direction of refrigerant flow (pointing
away from the condenser).
B. Apply a heat sink (wet cloth) to the filter drier.
C. With the suction and discharge ports open, braze
the filter drier into the system.
D. Evacuate the system per instructions in Section
5.2.
E. Recharge the system per instructions in Section
5.3.
5.9 CAPILLARY TUBE
The capillary tube meters refrigerant flow in the mix line
evaporator (Refer to Figure 5-14). The amount of flow is
dependent on the length and ID of the capillary tube as well
as the refrigerant charge.
CAPILLARY TUBE REMOVAL
NOTE
The capillary tube assembly contains a drier. The
entire assembly must be removed.
A. Recover refrigerant charge per instructions in
Section 5.2.
B. Leave a port open to prevent pressure buildup
during capillary tube removal.
C. Remove foam insulation from the capillary tube at
the evaporator inlet.
C. Unsweat the capillary tube and remove.
CAPILLARY TUBE REPLACEMENT
A. Position the capillary tube in the refrigeration
system.
B. Apply a heat sink (wet cloth) to the capillary tube
and drier assembly.
C. With the suction and discharge ports open, braze
the capillary tube into the system.
D.. Replace foam insulation to the capillary tube at the
evaporator inlet.
E. Evacuate the system per instructions in Section
5.2.
F. Recharge the system per instructions in Section
5.3.
Figure 5-13 Filter Drier
Figure 5-14 Capillary Tube and Drier Assembly
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