Overview Of The Wine Guardian Pro Unit - Wine Guardian DP25 Installation, Operation And Maintenance Manual

Overview of the Wine Guardian PRO Unit

Refer to overview illustrations starting on page 12
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 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 PRO units are factory run-tested and checked for operational
performance.
Filters – Nominal 1 inch thick filters are provided on the condenser inlet 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 PRO 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
PRO thermostat controller supplied with the Wine Guardian PRO 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 low ambient option, an automatic pressure
switch controls the operation of the condenser blower and a heating element is added to the compres-
sor oil reservoir. See Fig 1 - Refrigeration Illustration on next page.
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