Vintage Cellars Mini Ceiling Mount - Manual (Page 37)

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SYSTEM OPERATION
Initial Start-Up
When power is applied to the unit, the control will briefly
display all symbols, and the Snowflake symbol will be displayed
(if unit is calling for cooling). There may be a brief (up to 60
sec.) delay prior to the evaporator fan turning on. When the
evaporator fan is activated the Fan symbol will display.
APST (Advance Product Safety Technology) is a temperature
control feature for the evaporator fan that comes standard with
all WhisperKOOL units. APST ensures that in the possible event
of a cooling deficiency, the heat from the indoor fan will not
raise the temperature of the wine cellar, which could otherwise
have an adverse effect on the wine-aging process.
Set Point
The set point is set from the factory (WhisperKool) at 55F°. It
can be adjusted by the customer between 45–67F° in one
degree increments.
Humidity Features
The FON function is an adjustable feature which allows the
customer the convenience of reintroducing some of the
humidity removed by the fan coil during the cooling process.
The FON Function controls the evaporator fan operation
once the set point has been reached. When the bottle probe
has reached the set point (all units are shipped with the set
point of 55°F and a differential of 1°), the compressor and the
condenser fan will turn off, but the indoor fan will continue
to run for about 5 minutes to re-introduce any moisture from
the evaporator coil. All units come with this feature turned
off. If low humidity is a problem an increase in this setting
will raise the humidity level. The FON function is one of the
many Customer Preference Selection features that allow the
customer the ability to fine-tune the controls.
The Fon parameter can be increased to allow the evaporator
and condenser fans to run for a longer period of time after
the compressor turns off, allowing more moisture to be re-
introduced into the wine cellar.
Anti-Short Cycle
The Anti-Short Cycle ensures that the unit will remain off for a
period of five 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 (defrost)
The system will go through an Anti-Frost cycle every 4 hours.
This will shut down the compressor and allow the evaporator
and condenser fans to run to evaporate any frost accumulation
on the coil. The compressor will remain off until the evaporator
coil reaches 40F°, or for a maximum of ten minutes. The unit
will then return to normal operation.
Low Ambient Conditions
If the condensing unit is installed outdoors (which allows the
condenser to be exposed to low ambient temperatures), the
condenser fan may cycle on and off. The purpose of the fan
cycling is to maintain the system high side pressure, which
will ensure an adequate refrigeration process. The fan cycling
process is accomplished by way of a Johnson Control or fan
cycling switch attached to the condensing unit.
Bottle Probe Failure Protection
In the event that a bottle probe should fail, the APST (Advance
Product Safety Technology) will automatically transition the
refrigeration compressor cycles to a pre-determined time
series (based on detailed laboratory testing), which will ensure
that the product is kept within the safe range.
Display
The bottle probe temperature is displayed by default. “Def”
is displayed during Anti-Frost. The air sensing probe and
evaporator probe temperatures can be accessed by pushing
the SET button and scrolling through “PB1” (bottle probe), and
“PB2” (evaporator probe).
Safety Features
Once the cellar has reached the proper Set temperature,
the compressor goes into its pump down cycle. When the
compressor turns off the delay on break timer prevents the
compressor from short cycling.
In the event of a faulty bottle probe, the compressor will cycle
off for 10 minutes and on for 40 minutes. “E1” will be displayed
on the screen.
Alarms
See “Alarm Codes” in Controller Function chart.
Remote Control Panel (standard)
The remote keypad is designed to give the user the ability to
monitor and change cellar conditions when the evaporating
unit is placed in a remote location outside of the cellar.