Controller Operation - Precision
In normal operation, the controller displays product temperature in degrees F (default) or user-selected
degrees C. F temperatures are displayed to the nearest degree and C temperatures are displayed to one decimal
point.
The controller is pre-programmed with a 40 F (4.4 C) set point. COMP displays when the compressor is running.
If this set point does not meet your specific application needs, instructions for changing the set point are found
below.
Note: Follett presets its refrigeration system to hold product temperature at approximately 40 F (4.4 C). If you are
using this in a food service application, and installing in accordance with NSF, you must set the control
set-point to 38 F (3.3 C). This will deliver a product temperature below the 40 F (4.4 C) NSF requirement.
Controller Display
The controller display will show the product/bottle temperature in degrees C or degrees F as selected by the user
except when the unit is in an alarm.
The controller has system indicators above the temperature display to let you know when: the compressor is
energized (
COMP), the evaporator fan is energized (FAN) or the unit is in defrost (DEF).
To display temperature Set-point
Step
Input
Display
1
Press and release
SET
Current set-point temperature will display for approximately 5 seconds.
Display will return to current product temperature.
To change temperature Set-point
Step
Input
Display
1
Press and hold
SET for 3 seconds
Set-point will flash.
2
Press
UP or DOWN arrows to desired
set-point
New temperature set-point will flash on the display.
3
Press and release
SET to accept
Product temperature will display.
Controller Security
The controller can be locked so that the set-points in the controller cannot be changed.
1. To lock, press UP and DOWN arrows simultaneously until LOC appears (approximately 5 s).
2. To unlock the controller, press up and down arrows simultaneously until UNL appears. Changes are only
accepted when the controller is unlocked.
Changing Temperature Display from C to F
1. Press SET and UP arrow simultaneously until L1 is displayed.
2. Press the UP arrow until UNT is displayed. Press SET then use the UP and DOWN arrows to change
the temperature display from F to C. Press
SET to accept. The display will return to the temperature in
approximately 10 s.
Sleep Function
Press the
SLEEP button to blank the display, or press any button to wake the display. If the unit goes into an
alarm, the display will wake to display the alarm.
8
REF4P and REF5P Undercounter Refrigerators
REUC235
