Ford 1996 Windstar Manual page 111

Instrument Panel Controls
The air conditioning settings include MAX A/C, A/C and S
(Panel/Floor). However, heating capabilities are also provided in
these modes. Adjust the Temperature Control Knob as necessary
to receive cool (air-conditioned) or warm (heated) air when in
these modes.
NOTE: The A/C compressor will only operate when outside
air temperatures are above approximately 45˚F (7˚C).
The climate control system provides fresh outside air in all
function control settings except for MAX A/C and m (OFF).
Only recirculated interior air is available in MAX A/C.
In MAX A/C, air from inside the passenger compartment is
recirculated continuously and the A/C compressor is engaged.
In this position, the system provides maximum cooling,
maximum dehumidifying, and greater fuel efficiency. It also has
a greater noise level because the sound of the air from the
blower motor is not muffled by a closed damper door as it
would be in all other functional settings.
In A/C, outside air is drawn into the system and the A/C
compressor is engaged. The cooling process and the distribution
of cooled air is the same as that provided with MAX A/C.
Because outside air is drawn into the system, it will not have
the advantage of cooling already cooled air. It will have a lower
noise level because a closed damper door muffles the sound of
the air from the blower motor.
In Q (PANEL), air is drawn from the outside and directed into
the passenger compartment through the instrument panel
registers. The temperature of the air can be varied by adjusting
the Temperature Control Knob. This mode is normally used as a
vent setting. The A/C compressor does not operate in this
mode, only heating capabilities are provided.
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