Frick QUANTUM - Control Setup

FRICK QUANTUM EVAPORATOR CONTROL PANEL S90-600 O
OPERATION Page 17
Single Speed Fan Control Settings:
· On - If the control temperature reading equals or
exceeds this setpoint, the fan high-speed output
will be energized or turned on to run the fan.
· Off - If the control temperature is less than or
equal to this setpoint, the fan high-speed output
will be de-energized or turned off to stop the fan.
Variable Speed Fan Control Settings:
· On - If the control temperature reading equals or
exceeds this setpoint, the fan high-speed output
will be energized or turned on to run the fan.
· Off - If the control temperature is less than or
equal to this setpoint, the fan high-speed output
will be de-energized or turned off to stop the fan.
· Setpoint - The difference between this
temperature setpoint and the control temperature
reading is compared to the “deadband” setpoint.
If the difference is within the deadband, no
change is made to the analog signal affecting the
fan speed. If the control temperature reading is
higher than this setpoint and the difference
exceeds the deadband, then the difference is
multiplied by the “rate of change” setpoint and
the analog signal is increased by this amount to
increase the fan speed. If the control temperature
reading is lower than this setpoint, then the
analog signal is decreased by this amount to
reduce the fan speed.
· Deadband - The difference of the temperature
setpoint and the control temperature reading
must exceed this temperature span before
changing the fan speed.
· Rate of Change - This is the percent that is
multiplied to the difference of the temperature
setpoint and the control temperature reading
when this difference exceeds the deadband. If
the control temperature reading is higher than
this setpoint, then the analog signal to the fan is
increased by the result to further increase the fan
speed. If the control temperature reading is lower
than this setpoint, then the analog signal is
decreased by this result to further reduce the fan
speed.
· Delay - This is the minimum time in seconds to
delay before re-evaluating if the difference
between the temperature setpoint and the control
temperature reading exceeds the deadband
setting.
· Min (Minimum) - This is the minimum percent of
the analog signal that is sent to affect the fan
speed when the “On” setpoint is first reached and
the fan is turned on.
Fan Cycling settings:
· Time On – When the fan is turned on it will
remain turned on for this number of minutes.
· Time Off – When the fan is turned off it will
remain turned off for this number of minutes.