Follett FZR5 Installation, Operation And Service Manual - Page 7
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Controller Operation ––––––––––––––––––––––––––––––––––––––––––––––––
In normal operation, the controller displays cabinet temperatures
in degrees C (default) or user-selected degrees F (see
Temperature Display - Optional on page
to one decimal point, F temperatures are displayed to the nearest degree.
A snowflake LED displays when the compressor is running.
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 (4 F) differential. The 2 C (4 F) differential means
that with a -25 C (-13 F) 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
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). C temperatures are displayed
Current cut-out temperature will display for approximately 5 seconds.
Display will return to current refrigerator temperature.
INPUT
Current cut-out temperature displayed and °C (°F) will flash
New cut-out temperature displayed
New cut-out temperature blinks three times, then current refrigerator temperature
will display
Fig. 9
Changing
DISPLAY
DISPLAY
refrigeration system energized
evaporator fan energized
°C
- 25
defrost
FZR Undercounter Freezer
7