Follett REF Series - Manual (Page 8)

To change temperature display from °C to °F
If you have programmed your controller to display in °C and want to change it back to display in °F, follow the
steps below.
8
STEP INPUT DISPLAY
1 Press and hold SET + DOWN HY
arrow together for 3 seconds
2
Press UP or DOWN arrow CF
until CF is displayed
3 Press and release SET °C
4 Press UP arrow °F
5 Press and release SET °F blinks 3 times then HY
displayed
6 Press and release SET 22
7 Press DOWN arrow until 4 is New differential (4°F)
displayed displayed
8 Press and release SET 4 blinks three times then LS
displayed
9 Press UP or DOWN arrow US
until US displayed
10 Press and release SET 100
11 Press DOWN arrow until New US temperature (50°F)
50 is reached displayed
12 Press and release SET 50 blinks three times, then CF
displayed
13 Wait until current refrigerator CF displayed for 15 seconds
temperature is displayed
before passing any keys
14 All changes are now in Current refrigerator temperature
memory will display in °F
15
Press and hold SET for 3 Current cut-out temperature
seconds displayed
16 Press UP arrow to desired New cut-out temperature
cut-out temperature –
minimum: 34
17 Press and release SET New cut-out temperature blinks
three times, then current
refrigerator temperature will
display
18 Press and hold SET + DOWN HY
arrow together for 3 seconds
19 Press UP arrow LS
20 Press and release SET 11
21 Press UP arrow until 34 is New LS temperature (34°F)
reached displayed
22 Press and release SET 34 blinks 3 times, then US
displayed
23 Wait until current refrigerator US displayed for 15 seconds
temperature is displayed
before passing any keys
24 All changes are now in Current refrigerator temperature
memory will display in °F
Conversion complete