Function And Description Of The Buttons; Led Indicators - Carel MasterCella compact Manual De Utilización

2. Function and description of the buttons

The function buttons feature an easy to use format. In particular, buttons no. 1, 5, 6 (Fig. 2.1) can have more
functions, as following described.
Silences the buzzer, while the alarm code remains as
1
long as the alarm condition remains:
- if pressed when turning On the instrument: allows
to restore the default parameters (see section "Alarms,
signalling and troubleshooting");
- if pressed for more than 5 seconds: allows access to
the frequent parameters selection menu (F);
- if pressed for more than 5 seconds together with the
SET button: allows access to the configuration
menu through password 22 (see section "Second level:
configuration parameters");
if pressed for more than 5 seconds: activates/deactivates
2
a continuous cycle, that is the forced activation of the compressor for a period to be selected
(see parameter "cc");
allows the switching On/Off of the refrigerating unit.
3
Warning: when the controller is OFF, all outputs, with the exception of the light output and the light
button, will be deactivated whereas the On/Off led will be flashing. It is necessary to select the c2
parameter to ensure that, between one switching Off and the following switching On, the minimum time the
compressor is Off is maintained. The ON/OFF button can be deactivated: it is sufficient to select one
digital input as remote ON/OFF (see "Configuring the digital inputs").
selects the Set Point (see "Set Point");
4
displays the value of the selected parameter (see Modifying and saving the parameters);
- if pressed for more than 5 seconds together with the prg button:
allows access to the configuration menu through password 22 (see "Second level: configuration
parameters");
decreases the data value on the display during selection of Set Point and/or parameters;
5
- if pressed for more than 5 seconds: it forces a manual defrosting cycle;
activates/deactivates the lights of the cold room (or any other aux. output connected to the 4th relay);
6
increases the displayed value during selection of Set Point and/or parameters.

LED indicators

cooling ON
defrosting in progress
"continuous cycle" functioning
If a LED flashes, refer to the section "Alarms, signalling and troubleshooting".
1
SET
4
fan evaporator activated
lights ON
unit deactivated (OFF unit)
27
2 3
prg
5 6
Fig. 2.1