Alfa Romeo 147 Owner's Manual page 97

GENERAL
The car is fitted with a two-zone climate con-
trol system, controlled by an electronic control
unit which makes it possible to separately ad-
just the air temperature on the driver's side
and on the passenger's side. To obtain opti-
mum temperature control in the two areas
of the passenger's compartment, the system
has an outside sensor, a passenger's com-
partment sensor and a two-zone sun ray sen-
sor. On some versions the system is integrat-
ed with an incipient misting sensor installed
behind the inside rear-view mirror, capable of
"controlling" a predefined area of the wind-
screen inner surface which can automatically
act on the system to prevent or reduce mist-
ing through a series of operations such as:
opening air re-circulation, enabling the com-
pressor, air flow to the windscreen, fan speed
sufficient for demisting; in the case of heavy
misting, enabling the
MAX
To ensure correct opera-
tion of the incipient mist-
ing sensor, stickers must
not be applied (road licence holder,
time card, etc.) in the "control"
area between the sensor and the
windscreen. Care should also be
given to cleaning the windscreen
and the actual sensor, avoiding the
accumulation of dust and other sub-
96
stances.
IMPORTANT The demisting procedure
is enabled each time the ignition key is
turned to MAR or pressing the
ton. When this procedure is working it can
be turned off pressing one of the following
buttons: compressor, air recirculation, air
flow, air capacity. This operation inhibits the
incipient misting sensor signal until the
button is pressed again or the next time
TO
the ignition key is turned to MAR.
On certain versions, the system is inte-
grated by an antipollution sensor capable of
automatically switching on inside air re-cir-
culation to lessen the harmful effects of pol-
luted air in cities, queues, tunnels and op-
eration of the windscreen washer (with the
typical smell of spirit).
IMPORTANT The function of the anti-
pollution sensor is subordinate to safety con-
ditions; therefore disabling the climate con-
- function.
DEF
trol compressor or with low external tem-
perature, the sensor is disabled. In any case,
the sensor can be re-enabled pressing the
recirculation button v until taking it to
the automatic mode.
Air quality control is also entrusted to a
combined particle and activated carbon fil-
but- ter. The climate control system automatically
AUTO
controls and adjusts the following parame-
ters and functions:
- inside temperature (separately on driver's
side and passenger's side)
- - fan speed
AU
- air distribution
- inside air re-circulation on/off
- climate control compressor on/off en-
able.
It is possible to change the setting of the
following functions manually:
- fan speed
- air distribution
- inside air re-circulation on/off
- climate control compressor on/off en-
able.
The control of functions not changed man-
ually remains automatic and in any case the
temperature of the air admitted to the pas-
senger compartment is controlled automat-
ically according to the temperatures set on
the driver's and passenger's displays.
IMPORTANT Manual selections prevail
over automatic ones and remain in storage
until the user decides to resume automatic
control. The settings selected manually are
stored when the engine is switched off and
resumed the next time it is started.