FORD 2003 Expedition v.1 - Manual (Page 76)

Recirculation control
Used to manually enable or disable
the operation of recirculated air in
all modes except Defrost. When the
air conditioning is operating,
recirculated air helps to reduce the
amount of time required to cool the
inside of the vehicle. Recirculated
air will reduce undesirable odors
from entering the vehicle.
The recirculation control cannot be selected in Defrost as interior
fogging may occur. To reduce the risk of fogging while in Floor &
Defrost, the recirculation control can be enabled for approximately 4
minutes and the recirculated air indicator will be lit. After approximately
4 minutes of recirculated air operation while in Floor & Defrost, the
EATC will automatically disable the recirculated air and the recirculated
air indicator will not be lit.
In automatic operation, recirculated air operates automatically as
necessary to achieve the selected temperature. If desired, the
recirculated air can be controlled manually through the use of the
recirculated air control. When the recirculated air is controlled while in
automatic operation, the AUTO indicator will remain lit and the system
will remain in automatic operation. To return to automatic recirculated
air, press AUTO.
Under cold or damp conditions, do not leave the climate control system
in recirculated air for extended periods of time as this may cause interior
fogging of the windows.
Climate Controls
76