47
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2.9
2.10 Operation tests and nomaly diagnosis
2.8
EN
INSTALLATION
The key lock is activated by keeping the Timer
symbol
on the touch-screen display pressed for t h r e e
seconds. Any action is prevented by the user.
The stand-by symbol flashes at 1 second intervals.
To deactivate the lock, keep the Timer symbol pressed for
three seconds once again.
Any key on the remote control deactivates the lock!
The lock remains active also for the next operations performed
via remote control and in the event of a power failure.
Brightness regulation
The display brightness sensor can be disabled (still leaving
the maximum brightness) by holding the nocturnal well-
being button (moon symbol) for 10 seconds. The display
will show "ds" (disabled) or "En" (enabled).
Key Lock touch screen display and brightness adjustment
Display code
Cause
E1
Broken room temperature RT probe
E2
Broken evaporative battery IPT probe
E3
Broken outdoor air temperature OT probe
E4
Broken conditioner battery OPT probe
E5
Broken indoor air fan motor
E6
Broken outdoor air fan
E7
Lack of communication with the display
E8
Compressor discharge probe failure (only for DC Inverter models)
The conditioner can perform a short self-diagnosis cycle
to check the temperatures detected by the 4 probes and
the status of the 3 inlets.
In order to activate the self-diagnosis function, press the
button within 10 seconds from the electric power
supply.
The display will lit all symbols for 2 seconds and then it will
show the 7 information at 2 second intervals.
After 5 cycles, or when any key is pressed either in the
display or on the remote, the self-diagnosis mode will
stop.
If the conditioner blocks because of an alarm (see following
table), please communicate to the assistance centre the
code on the display to facilitate interventions.
2.11 Hotel function
Hold the air exchange button (arrows symbol) for 10
seconds and enable the function ("
En
" displayed) to
deactivate the dehumidification and Auto functions
(therefore only ventilation, heating and cooling are on). The
settings are "limited" to range from 22 to 28 for cooling
and from 16 to 24 for heating.
Should any anomaly occur in the condensation water
system, the maximum level float blocks the conditioner
and the
OF
code appears on the display.
During cooling and dehumidification, electronics switches
the compressor off and keeps the water distribution
system active with the battery - together with the fan - to
disperse excess water in the container. If the problem
persists, please contact the assistance service.
During heating, condensations should drain freely through
the specific pipe. In the event of an alarm, check that
the condensation pipe is not bent or obstructed, thus
preventing the water from flowing out.
Emergency condensation air discharge
If the presence contact is not closed, the appliance
doesn't start and the
CP
alarm appears on the display.
Open CP contact
It is possible to deactivate the heating or the cooling
modes following a simple procedure.
Keep the A key on the touch-screen display pressed for
5 seconds until
HC
(heating and cooling) appears on the
display.
Press the A key for 1 second for the
Co
(cooling only)
mode.
Press the A key again for Ho (heating only) mode.
Wait for 3 seconds without touching anything to memorise
the setting.
Setting cool only or heat only modes