Follett C83253 Installation, Operation And Service Manual - Page 6
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Controller operation
In normal operation the controller displays cabinet temperatures
in degrees C (default). Degrees F can be uploaded from controller
programming key - "hot key" (see page 7). Degrees C temperatures are
displayed to 1 decimal point.
Up/down/set membrane switches at right and left of the temperature
display control all programming functions.
The controller is pre-programmed with a -25 C (-13 F) set point which
provides a compressor cut-in at -23 C (-9 F) and cut-out at
-25 C (-13 F). The controller set point can be raised to -15 C (+5 F) for
nourishment applications where a lower temperature is not desired (i.e.
ice cream). Follow instructions for changing temperature
cut-out below.
All set points have a 2 C differential. The 2 C differential means that
with a -25 C set point, for example, the compressor will turn off at -25 C
(-13 F) and turn on when it reaches -23 C (-9 F).
To display temperature cut-out
STEP
INPUT
1
Press and release SET
To change temperature cut-out
STEP
INPUT
1
Press and hold SET for 3
seconds
2
Press UP or DOWN arrows to
desired cut-out temperature
3
Press and release SET
6
Controller operation
Current cut-out temperature will display for approximately 5 seconds.
Display will return to current refrigerator temperature.
Current cut-out temperature displayed and °C (°F) will fl ash
New cut-out temperature displayed
New cut-out temperature blinks three times, then current refrigerator
temperature will display
Fig. 7
refrigeration
evaporator
system
fan
energized
energized
- 25
defrost
DISPLAY
DISPLAY
FZR Series 00939124R00
°C