2012 Volvo XC70 Owner's Manual - Page 143

04 Comfort and driving pleasure Climate system A/C - ON/OFF When the indicator light in the button is on, the air conditioning is controlled automatically. This cools/heats and dehumidifies the incoming air. When the indicator light in the button is off, the air conditioning is disengaged. Other functions are still controlled automatically. When maximum defroster is selected, the air conditioning system is set for maximum blower speed and dehumidification. The climate system will return to its previous settings when the defroster function is switched off. NOTE When Defroster is selected, recirculation is always deactivated. Recirculation/air quality system Recirculation This function can be used to shut out exhaust fumes, smoke, etc., from the passenger compartment. The air in the passenger compartment is then recirculated, i.e., no air from outside the car is taken into the car when this function is activated. The indicator light in the button will illuminate when recirculation is selected. If the air in the car recirculates for too long, there is a risk of condensation forming on the insides of the windows, especially in winter. Interior Air Quality System-IAQS* This system consists of a multifilter and an air quality sensor. The filter helps remove gases and particles from the incoming air, thereby reducing the amounts of odors and contaminants entering the vehicle. The air quality sensor detects increased levels of contaminants in the outside air. When the air quality sensor detects contaminated outside air, the air intake closes and the air inside the passenger compartment is recirculated, i.e., no outside air enters the vehicle. The filter also cleans recirculated passenger compartment air. When the AUTO button is depressed the air quality sensor is always engaged. Activate or deactivate this function in Climate settings Interior air quality system. 04 Defroster This function defrosts/de-ices the windshield and front side windows. The indicator light in the defroster button lights when the function is active. Timer • Blower speed increases automatically and the air conditioning will switch on (if not already on and if the passenger compartment blower is not turned off) to dehumidify the air in the passenger compartment. Air conditioning can be switched off by pressing the AC button. • Recirculation will not function while defrost is engaged. The timer function minimizes the risk of fogging, or stale air when the recirculation function is selected by automatically switching off the function after a certain length of time, depending on the ambient temperature. Activate/ deactivate the function under Climate settings Recirculation timer. See page 131 for a description of the menu system. `` * Option/accessory, for more information, see Introduction. 143