7
Overview of the Wine Guardian Unit
Refer to illustrations on page 8
Cabinet
– The cabinet and access doors are constructed of aluminum with a powder coated finish
for corrosion protection and an attractive, maintenance free appearance. Areas in contact with cold
temperatures are lined with insulation to prevent condensation.
Condensing Section
–
Ambient air is circulated through the condenser section by a direct drive,
permanently lubricated, motorized impeller blower. This section also contains the compressor and
the electrical controls. If the water cooled option is purchased, a heat exchanger is used in place of
the condenser coil and blower.
Evaporator Section
– Cellar air is circulated through the evaporator section by another blower the
same as above. The large evaporator coil face area eliminates condensate carry-over, reduces air
pressure drop and optimizes heat transfer. A drain pan is located directly below the coil to capture
condensate and is fabricated from aluminum to prevent rust and corrosion. The electric heating coil,
if ordered, is factory installed between the evaporator coil and the blower, and is complete with
contactor(s) and limit controls.
Electrical Controls
– Most of the electrical components and controls are located in a separate area
accessible through the condenser section. Wires are numbered and color coded to match the wiring
diagrams.
Factory Tested
– All Wine Guardian units are factory run-tested and checked for operational
performance.
Filters
– Nominal 25mm thick filters are provided on both the evaporator and condenser inlets to
protect the coils from dust and dirt. These filters are washable and reusable.
Humidity Option
– The optional humidifier comes fully assembled and tested for field installation
onto the Wine Guardian without any additional electrical power wiring. It automatically adds
moisture into the cellar by the evaporation of water over a distribution pad. A cellar mounted digital
electronic humidistat automatically controls the amount of moisture added.
Internal Drain Trap
- Water condensate from the evaporator coil fills the trap and forms a seal to
prevent air from being drawn back through the drain tube. This allows the drain pan to drain freely.
No external trap is required.
Refrigerant Circuit
– The factory charged circuit includes a thermal expansion valve with an
external equalizer, sight glass with moisture indicator, a filter dryer, an automatic low pressure
switch, and a manual reset high pressure switch. For the low ambient option, an automatic pressure
switch controls the operation of the condenser blower and a heating element is added to the
compressor oil reservoir.
See Refrigeration Illustration on next page.
Supply/return grilles
– Powder-coated steel single direction grilles are provided for the inlets to
the evaporator and condenser sections. One grille is provided on an outlet. These are readily
interchangeable with access doors to control and direct the airflow. These grilles may be used in the
room on the end of the ducts in ducted systems.
