12
Controller Instructions
• To display/set the values of the parameter displayed, press
SET
, then
UP/DOWN
and finally
SET
to
confirm the changes (returning to the parameter menu).
To save all the new values and exit the parameter menu, press
SET
for 3 s.
To exit the menu without saving the changed values (exit by timeout) do not press any button for at least 60 s.
Digital controller model: IR33 for freezer
Signals on the display
The blinking status indicates a request for activation that cannot be implemented until the end of the
Corresponding delay times.
Icon Function
ON
OFF
Blink
Startup
Compressor Compressor on
Compressor off
Request
Fan
Fan on
Fan off
Request
Defrost
Defrost in progress
Defrost not required Request
Aux
Auxiliary Output AUX
active
Auxiliary Output
AUX not active
Anti-sweat heater function
active
Alarm
Delayed external
alarm (before the
expiry of the time ‘A7’)
No alarm present
Alarms in normal operation
(eg. high/low temp.) or
alarm from ext. digital input
immediate or delayed
Clock
At least one timed
defrost has been set
No timed defrost is
present
Clock alarm
On if Real-
Time Clock
present
