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#7040748 - Revision A - September, 2016
Sealed System Information
MODEL UW-24
MODEL UW-24
WINE STORAGE SEALED SYSTEM
The following six diagrams illustrate a basic wine stor-
age sealed system. The components are listed in order
of refrigerant flow, with an explanation of their funda-
mental role as part of a sealed system.
Compressor (Figure 3-1)
The compressor creates a high side and low side pres-
sure difference in the sealed system by compressing
the refrigerant gas, thus raising the pressure and tem-
perature. The compressor pushes this high-
pressure/high-heat gas through the drain pan heater
loop then it is routed to the condenser.
Condenser (Figure 3-2)
The high-pressure/high-heat gas travels through the
condenser tubing, where most of the heat in the refrig-
erant is drawn out and dissipated into the room by the
cooler ambient air that is being drawn over the con-
denser tubing
(referred to as heat transfer)
. This
changes the gas into a high-pressure warm liquid
before it enters the high-side filter-drier.
Filter-Drier (Figure 3-2)
The high-pressure warm liquid travels through the high-
side filter-drier, where the desiccant pellets inside the
drier remove moisture from the refrigerant before it
enters the dual refrigerant valve.
Dual Refrigerant Valve (Figure 3-3)
The tubing that is part of the dual refrigerant valve is a
T-connection with a bead inside. This bead is forced to
one side of the T-connection, or the other, depending
on the electrical signal from the control board to the
valve solenoid. When the bead is to one side of the T-
connection, that side is closed, the other side is open.
The open side of the dual refrigerant valve T-connection
allows the high-pressure warm liquid to enter the appro-
priate capillary tube.
Figure 3-1. Compressor
Figure 3-2. Condenser & Filter-Drier
Figure 3-3. Refrigerant Valve(s)
COMPRESSOR
AWECO VALVE
CONDENSER
FILTER-DRIER
FRAME HEATER (HOT GAS)
(
NOTE:
ONE SIDE OPEN AT A TIME.)
COMPRESSOR
CONDENSER
FILTER-DRIER
FRAME HEATER (HOT GAS)
COMPRESSOR
FRAME HEATER (HOT GAS)
