Mercury 1996 Sable Manual page 121

Function selector knob
The function selector knob controls airflow to
the inside of the vehicle.
MAX A/C
MAX A/C uses recirculated air to cool the
vehicle. It allows for faster cooling but is noisier
than A/C. The airflow will be from the
instrument panel registers.
A/C
A/C uses outside air to cool the vehicle. It is
quieter that MAX A/C, but not as economical.
The airflow will be from the instrument panel
registers.
VENT
VENT brings in outside air through the
instrument panel registers. It can be used for
heating or ventilating.
OFF
In OFF, outside air is shut out and the fan will
not operate.
S (Panel and floor)
This brings in outside air through the instrument
panel registers and the front and rear floor
ducts. It can be used for heating or ventilating.
R (Floor)
This allows for maximum heating. The airflow is
from the front and rear floor ducts.
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