Volvo S70 Owner's Manual page 65

1999 S70 & V70
Set the mode selector to AUT and select the desired temperature. If the driver's side temperature selector
is set to either the max heating or max cooling position, the blower will run at its maximum speed.
Optimum defrosting
Set the function selector to
possible). The A/C system will be on at this time regardless of the A/C button's position and the blower
will run at its maximum speed. When the windows have cleared, set thefunction selector in the AUT
position.
Additional information
The air conditioning system will function best if used regularly (at least once a month).
Always keep the air intake grille at the base of the windshield under the rear edge of the hood free of
snow.
Water under the vehicle in hot weather can be the result of condensation from the air conditioning
system and is quite normal.
The air conditioning is disengaged when the blower is set at 0 and the speed of the vehicle is less than
20 mph (30 kn/h).
The air conditioning system functions only at temperatures above 32° F (0° C).
Recirculation : Use this function if the outside air is contaminated with exhaust gases, smoke, etc. or
to heat/cool the car quickly. When Recirculation is activated, very little air drawn into the passenger
compartment from the outside.
If your windows begin to fog or mist, check that the recirculation function is NOT engaged.
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and move the blower control to the position AUT (as far to the left as