Vintage Cellars SC Series WhisperKOOL - Manual (Page 19)

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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.
Set Point:
The set point is set from the factory (WhisperKool) at 55°F. It
can be adjusted by the customer between 50°F and 70°F in
one degree increments.
Cooling Operation:
Cooling is activated once the bottle probe senses a
temperature that is 1° greater than the set point. The
controller then energizes the compressor relay which
activates the compressor. The evaporator and condenser
fans operate with the compressor. The unit provides
cooling until the bottle probe senses the set point. At this
point the compressor relay is de-energized, which stops
the compressor. The evaporator and condenser fans will
continue to run for 1 minute to re-evaporate any moisture
from the evaporator coil and reduce the head pressure.
Humidity Features:
The Fdc 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 cellar.
Anti-Frost (defrost):
When the evaporator probe senses a temperature of 26°F
for 5 minutes, the unit will go into Anti-Frost mode. 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 40°F, or for a maximum of 10
minutes. The unit will then return to normal operation.
If the evaporator is not above 26°F after the Anti-Frost
sequence has ended, the red error light will display in the
upper right corner. Alarm “Ad3” will be recorded in the alarm
folder, meaning that the Anti-Frost sequence ended based
on time. The unit will run for 5 minutes and then enter
another Anti-Frost cycle. This sequence will continue until
the evaporator temperature increases above 26°F.
“Def” will be displayed during Anti-Frost. If the Anti-Frost
sequence is less than 5 minutes, the control will not allow
the compressor to start until 5 minutes has elapsed. This is
to prevent short cycling of the compressor.
Holding down the up button for approximately five seconds
manually starts the Anti-Frost sequence, but only if the
evaporator is below 40°F (defrost end temperature). If the
evaporator is above 40°F, the display will blink three times
and continue normal operation.
Display:
The bottle probe temperature is displayed by default. “Def”
is displayed during Anti-Frost. The bottle probe, evaporator
probe, and condenser probe temperatures can all be
accessed by pushing the “SET” button and scrolling through
“PB1” (bottle probe), “PB2” (evaporator probe), and “PB3”
(condenser probe).
Safety Features:
Once the compressor relay is de-energized the controller
must wait 5 minutes before re-energizing the relay. This
prevents the compressor from repeatedly turning off and
on. If the unit is calling for cooling during this time, the
compressor symbol will blink, indicating that cooling is
needed but the control is waiting for the anti-short cycle
delay. 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.
If the condenser temperature reaches 145°F, the compressor
will shut down. The red alarm light will be displayed in the
upper corner of the display. “COH” will be displayed on the
screen. The evaporator and condenser fans will continue to
run until the time set by the FDC parameter has elapsed. The
unit will continue normal operation once the condenser has
reached 135°F.
Alarms:
If the bottle temperature reaches 4°F above the set point, a
red light will blink in the upper right corner of the display.
The “SET” button can then be pressed to reach the alarm
menu. The menu will display “AH1”, indicating a high bottle
temperature. The same thing will happen if the bottle
temperature reaches 4°F below the set point, but the alarm
will read “AL1”. These alarms will not display for the first 10
hours after the unit is turned on to allow the cellar to reach
temperature. They will also wait one hour after an Anti-Frost
cycle before displaying.
In the event of a faulty evaporator probe “E2” will flash
on the screen intermittently. The red alarm light will be
displayed in the upper right corner. During an active alarm
the unit will default to run one Anti-Frost sequence every 24
hours.
In the event of a faulty condenser probe “E3” will flash on
the screen intermittently with the set point temperature
along with the red error light at the top of the display. There
will be no high condensing temperature alarm.
Press the “SET” button and enter the Al folder to view any
current alarms that are not flashing on the display.
UNIT OPERATION