General On Climate Control; Particle Filter - Volvo XC90 Owner's Manual

Climate control

General on climate control

Misting on window interiors
A good way to reduce the problem of misting on
the insides of the windscreen and other
windows is to clean them. Use a normal
window cleaner.
Bear in mind that you must clean them more
often if someone smokes in the car.

Particle filter

Make sure the particle filter is replaced
regularly. Consult your Volvo workshop.
Ice and snow
Remove ice and snow from the climate control
air intake (the grille between the bonnet and the
windscreen).
Fault tracing
Your Volvo workshop has the instruments and
tools required for any fault tracing or repair of
your climate control system. Entrust checks and
repairs only to trained personnel.
Environmental care
Refrigerant R134a is in the air conditioning
system. This contains no chlorine, which means
it is harmless to the ozone layer.
Only use R134a when filling/changing refrig-
erant. This work should be carried out by an
accredited workshop.
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Cars with ECC
Actual temperature – ECC
The temperature you select corresponds to the
physical experience with reference to air speed,
humidity, exposure to sun, etc. which affect the
interior and exterior of the car.
Sensors – ECC
The sun sensor is on the upper portion of the
dashboard. Remember not to cover it.
Do not cover the passenger compartment
temperature sensor on the climate control panel.
Side windows and sunroof
To ensure that the air conditioning works satis-
factorily, close all side windows and the
sunroof (if fitted).
Acceleration
The air conditioning system switches off
temporarily at full acceleration. You may feel a
temporary rise in temperature.
Condensation/Drying
In warm weather, condensation from the air
conditioning system may drip under the car.
This is normal. If necessary, the fan will
start 50 minutes after the ignition switch is
turned to position 0 to dry the climate control
system for seven minutes. The fan then
switches off automatically.
Fuel economy - Electronic climate
control ECC
With ECC, the air conditioning system is
controlled automatically and is used just
enough to cool the passenger compartment and
dehumidify the incoming air. This provides
better fuel economy compared to conventional
systems where the air conditioning cools the air
to just above freezing point.
Fan function to reduce risk of battery
discharge
When the engine is switched off (even if the
ignition key is in position I or II), the fan will be
switched off automatically. To activate the fan,
turn the knob and set the desired speed. After
two minutes, the fan will reduce to a lower
speed. This is one way to avoid discharging the
battery when the engine is switched off.