Installation, use and maintenance manual
7.1.3.17.2
Displaying the compressor operating
hours
Make sure that the keypad is not locked
(section 7.1.3.3) and that there are no other
advanced procedures running;
Press and release the
on the display;
Press and release the
button to select "CH";
Press and release the
To exit the procedure:
Press and release the
touch the display for 60 seconds.
Alternatively:
Press and release the
D
7.2
Non-standard functions
The appliance is fitted with a system for checking
the ambient conditions, i.e. the temperature of the
incoming air from outside. The function described
below is used to stop the appliance from
activating
in
heat
pump
specification conditions, which could damage the
compressor and interrupt the service.
Every time the appliance is switched on, the fan is
activated for 1 minute as set under parameter
C12. Once this time has passed, the system
assesses the temperature of the incoming air. If the
temperature is equal to or less than parameter SP9
(4°C), the heat pump unit cannot be activated
and the electrical resistor is activated instead. The
auxiliary electrical resistor is used to complete the
heating
process,
until
temperature is reached with the active cycle
running.
The system checks the conditions cyclically (every
120 minutes) and activates the heat pump only
when the conditions are right for it to be able to
operate.
button: "Pb1" shows
button or the
button.
button or do not
button.
mode
in
out-of-
the
pre-set
setpoint
MANUAL CODE: 6328407
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