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MERCHANDSERS OPERATION AND SERVICE MANUAL/ Rev. JUN. 2015
CAREL CONTROL (IR33+)
The operating parameters can be modified using the front keypad. Access differs depending on the
type: set point, frequently-used parameters (F) and configuration parameters (C). The type of
parameter is specified in the table of parameters. Access to the configuration parameters is
protected by a password for the configuration parameters that prevents unwanted modifications
or access by unauthorised persons. The password can be used to access and set all the control
parameters.
Setting the set point
To change the set point St (default -8°C)
•
Press Set for more than 1 s: the display shows Set and then the current value of St;
•
press UP/DOWN until reaching the desired value;
•
press Set to save the new value of St.
Setting type F parameters
Type F parameters include the set point, differential, temperature monitoring interval, interval
between defrosts, end defrost temperature, dripping time, alarm thresholds, alarm bypass times,
etc. See the parameter table.
Procedure:
1.
Press Prg/Mute one or more times to return to the standard display;
2.
Press Prg/Mute for more than 3 seconds (if an alarm is active, the Buzzer is muted):
the display will show the code PS (Password) and The number 0;
3.
Press Set, the display shows parameter St;
4.
Press UP or DOWN until reaching the desired parameter: when Scrolling, an icon is
displayed that represents the category the Parameter belongs to (see the table below
and the parameter table);
5.
Press Set to display the value of the parameter;
6.
Press UP/DOWN until reaching the desired value;
7.
Press Set to temporarily save the new value and display the parameter Code again;
8.
Repeat steps 4) to 7) to set other parameters;
9.
To permanently save the new values of the parameters, press Prg/ Mute for 5
seconds. This exits the parameter setting procedure.
