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System operation – WhisperKool 2500 User Manual

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SL 082411

Initial Start-Up

When power is applied to the unit, the control will

briefly display all symbols, and the Compressor

symbol will be displayed (if unit is calling for cooling).

There may be a brief delay prior to the evaporator

and condenser fans turning on.

Normal System Cycle

After the bottle probe has reached the set point (all

units are shipped with the set point of 55°F and a dif-

ferential of 1°F) the unit turns off. The WHM is an ad-

justable feature which allows the customer the con-

venience of managing the humidity enhancement

of their wine cellar. The WHM is one of the many

Customer Preference Selection features which allow

the customer the ability to fine tune the controls. This

feature is set to 0 when shipped but if needed can be

adjusted.

Anti Short Cycle

The Anti Short Cycle ensures that the unit will remain

off for a period of 3 minutes after the unit has reached

the set point to allow the pressure in the refrigeration

system to equalize prior to starting the compressor.

Anti Frost Cycle

The Anti Frost Cycle is a precautionary measure, as

icing or frosting of the coil does not occur during

normal operation. The system will go through an

anti frost cycle when the evaporator temperature

reaches 26°. During the Anti Frost cycle, the unit will

stop cooling and run the indoor fan to provide air

flow across the indoor coil, which will melt any frost

accumulation.

Bottle Probe Failure Protection

In the event that a bottle probe should fail, the APST

(Advance Product Safety Technology) will automati-

cally transition the Refrigeration Compressor cycles

to a pre-determined time series (based on detailed

laboratory testing), which will ensure that the prod-

uct is kept within the safe range.

SYSTEM OPERATION