System; Automatic Climate Control System - Fiat DUCATO Owner's Handbook Manual

SYSTEM SERVICING
In winter, the climate control system
must be turned on at least once a
month for about 10 minutes. Before
summer, have the system checked at a
Fiat Dealership.
Note The system uses R134a coolant
which does not pollute the environment
in the event of accidental leakage.
Never use R12 fluid, which is not
compatible with the system
components.
AUTOMATIC
CLIMATE CONTROL

SYSTEM

(for versions/markets, where provided)
GENERAL INFORMATION
The automatic climate control system
adjusts the temperature, the quantity
and the distribution of the air in the
passenger compartment.
The temperature control is based on
the "equivalent temperature": in other
words, the system continuously works
to keep the comfort level inside the
vehicle constant and to compensate for
possible variations in outside
conditions, including the sun's rays
detected by a dedicated sensor.
The automatically controlled
parameters and functions are:
❒ air temperature at the vents;
❒ air distribution at the vents;
❒ fan speed (continuous variation of the
air flow);
❒ compressor activation (for cooling/
dehumidifying the air);
❒ air recirculation.
All functions may be changed manually.
In other words, you may select one or
more functions and change the
parameters as required. Automatic
control of the manually changed
functions will be suspended: the
system will override your settings only
for safety-related reasons (e.g. risk
of misting).
Manual selections will always take
priority over automatic settings and will
be stored until the user switches the
system back to automatic operation by
pressing the AUTO button again except
for the cases in which the system will
intervene for particular, safety-related
reasons.
You can adjust one function manually
without affecting the automatic control
of the others.
The temperature of the air sent is
always controlled automatically,
depending on the temperature set in
the display (except when the system is
off or in certain conditions when the
compressor is switched off).
35