5 - Operation
108
Automatic mode with manual speed selection
When the speed blower knob is in a different position from «OFF» or in automatic mode, the ATC control module ATC goes
into semi-automatic mode with a manual speed selection.
In this mode, the operation is identical to the automatic mode, except for the fan speed which depends on the position of
the button.
LO mode
When the temperature control knob is in «LO» position, the ATC control module forces the system as follows:
When the temperature knob is in «LO», the ATC control module
• Water valve is closed
• Speed blower at the maximum speed (if le knob is in «AUTO»)
• A/ C compressor is engaged
Speed blower
knob position
Pushbutton
A/C
Screen Descriptions
AC ON
AC ON
AC OFF
AC OFF
Automatic mode
- heating valve is automatically controlled
- Speed blower is automatically controlled
- A/C compressor is automatically controlled
Automatic mode with manual speed control
- heating valve is automatically controlled
- Speed blower controlled manually
Automatic mode with A/C compressor
stopped
- heating valve is automatically controlled
- Speed blower automatically controlled
- A/C compressor stopped
Automatic mode with manual speed control
and A/C compressor stopped
- heating valve is automatically controlled
- Speed blower manually controlled
- A/C compressor stopped