360077-1/O
81
Horizon Series™ - Blood Bank Models
17
Temperature Controller Setpoints
Temperature controller display and buttons.
The temperature controller is located in the electrical box on the rear of the refrigerator. Temperature
controller setpoints are programmed at the factory. Setpoints can be viewed and changed through the
temperature controller. Parameter values reside in four program levels.
View or change parameter values:
NOTICE
Changing parameter values affects refrigerator operation. Do not change parameter
values unless instructed by Helmer Technical Service.
NOTE
►
To change the value for a parameter, first enter the program mode for that level.
►
When there is no interaction for 60 seconds, the temperature controller exits program
mode.
1
Enter Level 1 program mode:
a
Press and hold the
UP
and
DOWN
buttons simultaneously for approximately three seconds.
b
“tunE” and “oFF” flash on the display.
c
The temperature controller is now in Level 1 program mode.
2
Select the parameter to be changed:
a
Press and release the
UP
or
DOWN
buttons until the desired parameter flashes on the display.
b
To access Level 2 or Level 3 parameters, select the “LEVL” parameter.
3
Change a parameter value:
a
Press and hold the * button.
b
Press the
UP
or
DOWN
buttons to change the parameter value.
c
To access Level 2 parameters, change the value for the “LEVL” parameter to 2.
d
To access Level 3 parameters, change the value for the “LEVL” parameter to 3.
4
Release all buttons to exit the parameter. New settings are saved.
►
If the “LEVL” parameter value is changed, the temperature controller returns to the selected
program level.
5
Repeat steps 2 through 4 to access another program level, or to view or change parameter values in
the selected level.
6
Access Level 4 parameters:
a
Navigate to Level 3 program mode.
b
Select the “UEr” parameter.
c
Press and hold the
UP
and
DOWN
buttons simultaneously for approximately 10 seconds.
d
The “LOCK” parameter flashes on the display.
7
Exit program mode:
a
Press and hold the
UP
and
DOWN
arrow buttons simultaneously for approximately three
seconds, or
b
the current chamber temperature is displayed.
