Fig."D"
AUTO
Fan speed selection (Fig. "D"):
• Press the indicated button to select the desired fan
speed:
-
Low fan speed
-
Medium fan speed
-
High fan speed
- AUTO sets the automatic variation of the fan
speed.
A signalling LED is assigned to each speed; the
LED lights up to identify the selected speed.
Fig."E"
AUTO
AUTO
Alarm signalling
(Fig. "E")
If the on-board temperature probe fails, the red LED
"2" flashes slowly.
Contact the technical support.
If a machine stops communicating with the power
unit the red LED "2" flashes quickly.
Check the electrical connection.
AUTO
AUTO
IAQ
C
°
2
IAQ
C
°
Fig."F"
Energy Saving (Fig. "F")
The energy saving function is activated / deactivated by
pressing button 6 and signalled by the switching on or off
of LED 6a.
In Summer operation the working set point (set by the knob)
is increased by 3 °C.
In winter operation the working set point (set by the knob) is
decreased by 3 °C.
Fig."G"
3
Push button panel lock / unlock
Hold
down
simultaneously
ON/OFF
buttons
All LEDs flash twice to confirm the operation.
Repeat the operation to unlock the control buttons.
39
English
AUTO
IAQ
AUTO
C
°
6a
6
> 5 sec.
7
IAQ
AUTO
IAQ
AUTO
°
C
(Fig. "G")
for
5 sec.
(3)
and
IAQ/Heater
the
(7).