FZR Series 00939124R00 Controller operation 7
Controller security
The controller panel can be locked to prevent inadvertent or intentional programming changes. In locked mode, the
controller will display cabinet temperature and cut-out set point only.
To lock the controller
1. Press the UP and DOWN ARROW buttons together for 3 seconds until “PoF” displays (will
ash 3 times).
2. Programmer is now locked.
To unlock the controller
1. Press UP and DOWN ARROW buttons together for 3 seconds until “Pon” displays (will ash 3 times).
2. Programmer is now unlocked.
Controller programming key - “hot key”
A controller programming key is available from Follett to provide fast and easy reprogramming of factory settings.
Program Serial# Range
Frequency of
Defrost
Maximum
Duration of
Defrost
Temp
Display °
FZR4-ADA & FZR5 –
Item#
Below # C45184 4 hrs 15 min C 00923938
4 hrs 15 min F 00923946
Below # C83253 4 hrs 15 min C 00923656
4 hrs 15 min F 00923664
Above # C83253 6 hrs 15 min C 00923672
6 hrs 15 min F 00923680
Programming freezer from a controller programming key - “hot key” (download)
1. TURN OFF freezer.
2. Remove 6 screws from panel holding controller to access back of controller.
3. Insert programmed key into 5 PIN receptacle on controller back.
4. TURN ON freezer.
5. Values from key automatically download to freezer (“dol” message blinks followed by “end”).
6. After 10 seconds display returns to current freezer temperature and controller will restart with new values.
7. TURN OFF FREEZER.
8. Remove key.
9. Reinstall panel.
Note: An “Err” message displays for failed programming. Turn freezer OFF then ON to restart download, or remove key
to abort.
To Next Page
