Overview Of The Wine Guardian Unit - Wine Guardian Sentinel Series Installation, Operation And Maintenance Manual

Overview of the Wine Guardian Unit

Cabinet – The cabinet is constructed of aluminum with a powder coated finish for corrosion protection.
The access doors and duct collars are constructed of durable composite material. 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.
– Cellar air is circulated through the evaporator section by another blower
Evaporator Section
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 in a separate area accessible
on the side of the unit. All wiring is in accordance with the NEC. 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 1-inch (25mm) thick filter is provided on the condenser inlet to protect the coils from
dust and dirt. This filter is 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. The same Wine Guardian thermostat controller
supplied with the Wine Guardian unit automatically controls humidity as well as temperature.
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 Extreme Climate Protection option, an automatic pressure
switch controls the operation of the condenser blower, and a heating element is added to the compressor
oil reservoir. See Fig 1 - Refrigeration Illustration on next page.
Supply/return grilles – A powder-coated steel single direction grille is provided on the outlet of condenser
section. One grille is provided on an outlet. The grille is 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.
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