E3980 VRSS
20
On
Indicates temperature unit of measure.
Powering on control
To turn refrigeration control power on
, press and hold “ ” for approx. three seconds.
When the control powers on, the display will read the cabinet probe temperature. The
compressor and condenser fan run indicators ( & ) will illuminate on the display,
meaning that the compressor and condenser fan are running. (Note: the control may
already be in the on mode when shipped from factory).
To turn refrigeration control power to off
, press and hold “ ” for approx. three
seconds. When the control powers off the disp
lay will read “OFF”. When refrigeration
control is in the off-mode cabinet lights and evaporator fans will still operate, but the
compressor will not turn on causing the case to gradually reach room temperature.
Adjusting the set point
The set point is what determines how cold the display case will hold food and beverage.
To adjust the set point press the “
” button.
Then press “ ” button to increase the set
point number (colder)
or
press the “ ” button to decrease the set point number
(warmer).
There are nine (9) available set points numbers, the higher the number of the
set point, the colder the display case will run, with setting “9” being the coldest and
setting “1” being the warmest. Once you have chosen your desired setting press the “
” button again to confirm your choice. The control cutout temperature for the selected
setpoint will briefly be displayed if the setpoint was changed.
Entering manual defrost mode
The control is programmed to automatically initiate a defrost by two different methods,
involving time and temperature, as outlined in the “Defrost Cycle” section (Pg.) of
“ELECTRONIC CONTROL PARAMETERS AND EXPLANATION OF OPERATION.”
While it is uncommon that the automatic defrost cycles would insufficiently defrost the
case, a Manual Defrost mode is available if this situation arises.
Note: The control will not allow the initiation of a manual defrost within 30 minutes of
completion of another defrost cycle, manual or automatic.
To initiate a manual defrost press and hold
the “ ” button approx. three seconds. The
defrost is initiated when the defrost mode indicator illuminates on the display. The
control display will then return to reading the probe temperature. When the defrost
mode indicator turns off the defrost is complete and the compressor will turn back on
automatically and the compressor and condenser fan indicator will be shown ( & ).
