Directory Of Terms - Wine Guardian SS025 Installation, Operation And Maintenance Manual

Directory of Terms

Ambient Air – The surrounding area outside the wine cellar such as a room, basement, garage or
outdoors.
BTU/H – British thermal units/hour. A unit of measurement to describe the power of heating and
cooling system.
CFM – Cubic feet per minute. A unit of measurement for the amount of air handled by the fan.
Condensate / Condensation – The water formed out of the air when it is cooled below a certain
temperature (called dew point). Often referred to as "sweating" on pipes and cold surfaces. This water
collects at the bottom of the evaporator or cooling coil and drains out of the unit through the drain line.
Condensing Unit (Heat Rejection) – The condensing unit uses the compressor, condenser coil and
fan to remove heat from the refrigerant to the ambient air outside the wine cellar. The word condenser
refers to the condensation of the refrigerant from gas to liquid phase.
CSA/ETL – Canadian Standards Association/Edison Testing Laboratory (product compliance to
safety standards)
F – (Degrees) Fahrenheit
Fan Coil Unit (Evaporator Cooling) – The fan coil unit uses the cooling coil and the fan to remove
heat from the air inside the wine cellar to the refrigerant, cooling the air and condensing moisture out
of the air. The word evaporator refers to the evaporation of the refrigerant from liquid to gas phase in
the coil. The fan coil unit is ducted to or can be placed inside the wine cellar.
Flexible Duct – Round ducts with steel reinforced plastic liners, a layer of insulation and an outer
plastic layer used to convey the air from the unit to the wine cellar or ambient space.
Grille or Diffuser – Inlet or outlet plates to direct the airflow or protect the inside of the unit.
Heat Gain / Loss – The amount of cooling or heating expressed in watts transferred between the wine
cellar and the ambient space. The Wine Guardian must offset this heat/gain loss.
Inlet Air – The air returning from the wine room to the Wine Guardian fan coil.
I.D. – Inside diameter
NEC – National Electrical Code
O.D. – Outside diameter
Psig Pounds – Force per square inch gauge
Recovery – The amount of cooling the unit does to return the cellar to its set point temperature after
some new heat 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 fan coil. (See Inlet Air above)
TXV – Thermal expansion valve
VAC – Volts alternating current
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 remote interface controller or humidistat.
Supply Air - The air entering the wine cellar from the discharge of the fan coil.
5