Commercial Refrigeration Systems
The type of refrigeration system installed depends conditions that must be maintained. Owne The type mist consider the amount son the Owners and installers of product that mast st be refrig fit the unit, the temperatur d the space required to set points, the amount of heat that will be Jouduced throughout the day, and related factors, Some humidity commercial refrigeration systems are prebuilt fot specific applications. Others must be custom-made.
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Commercial Cabinet Construction
Commercial cabinet surfaces are either metal or plastic. Raishes are designed for easy cleaning. Structural mem bers are steel, capable of supporting the evaporator and ondensing unit. Insulation is usually polystyrene or ure thane in slabs or foamed in place.
The capacity of the evaporator and condensing unt zust be adequate for the required application, Refrigeration In some cases, heat leakage may cool the cabinet surfaces ough to cause moisture to condense on them. To avoid this condition, some cabinets hawear resistance heating drip. The strips are located around certain outer surfaces warm them and prevent condensation from forming.
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Temperature Alarm Systems
In some installations, such as food freezers, an electrical alarm system will sound if the temperature in the cabinet rises above an upper safe limit. These systems sometimes perate from the electrical circuit powering the compres . Others are provided with a battery arrangement. If the latteries are in good condition, the alarm will work even daring a power failure.
Ice Banks
Many types of coolers, vending machines, and other nedium-temperature commercial refrigeration systems use the ice banks to provide reserve cooling capacity. Dur periods when the system cooling demand is low, an ite bank (solid block of ice) forms around the evaporator. When demand increasesce) forms around able to absorb mach of the heat, and prevent the refrigeration system from overloaded.