General Overview - Wine Guardian DP50 Installation, Operation And Maintenance Manual

• Inlet Air – The air entering the evaporator and condenser sections of the Wine
Guardian unit.
• I.D. – Inside diameter
• NEC – National Electrical Code
• O.D. – Outside diameter
• Psig Pounds – Force per square inch gauge
• NEC – National Electrical Code
• Recovery – The amount of cooling the unit does to return the cellar to its set
point temperature after some new load is introduced, such as people or new
cases of warm wine entering the cellar.
• Return Air - The air leaving the cellar and returning to the inlet of the evaporator
coil.
• SP – Static pressure. Unit of measurement (inches of water column) of the
pressure of the air handled by the fan.
• Set Point – The desired temperature or humidity set on the thermostat or
humidistat.
•
Supply Air - The air entering the cellar from the discharge of the evaporator coil.

General Overview

The Wine Guardian cooling unit is a professional grade, American manufactured, self-
contained climate control unit designed specifically for the storage of wine at cellar
temperatures. It is designed for easy installation and operation. Wine Guardian uses
digital electronic controls and R-134a refrigerant. The entire unit is tested at the factory
and shipped as a single package. All components are of a high quality, standard
commercial grade. The entire unit is approved by ETL according to UL 1995 and CSA
safety standards. All wiring complies with NEC. Each unit is furnished with a sealed, UL-
approved power cord and plug.
The Wine Guardian wine cellar cooling systems are completely self-contained and
includes either an integral air cooled or water-cooled condenser. The units are
functionally divided into two sections, the evaporator (or cooling section) and the
condenser (or heat rejection section). Each section contains a coil to add or remove
heat and a fan to move the air through the coil and into or out of the cellar or adjacent
space. The Wine Guardian cooling systems are designed to be used as a remotely
mounted unit with external ductwork connections.
Air first passes through the cooling coil and is cooled by the refrigerant inside the coil.
This causes any excess humidity in the air to condense and be captured in the drain
pan and piped outside the unit. Air then enters the fan where it is pressurized and
discharged out of the unit. Optional heating coils are located between the cooling coil
and the fan. These coils heat the air to prevent low temperatures in the cellar. The
thermostat, located in the cellar, turns on the cooling (or optional heating) as needed to
maintain its setpoint. It does not allow the cooling and heating to be on at the same
time.
The compressor and condenser sections are activated whenever the unit is cooling. The
condenser fan draws air from the surrounding or ambient space either directly or
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