FORD 2011 F-550 v.2 - Manual (Page 84)

During extreme high ambient temperatures when idling stationary for
extended periods of time in gear, it is recommended to run the A/C in the
max A/C position, reduce blower fan speed from the highest setting and
put the vehicle’s transmission into the P (Park) gear position (automatic
transmission only) to continue to receive cool air from your A/C system.
For maximum cooling performance:
• Automatic operation:
1. Press AUTO for full automatic operation.
2. Do not override A/C or (recirculated air).
3. Set the temperature to 60°F (16°C).
• Manual operation:
1. Select MAX A/C.
2. Select (recirculated air). Use (recirculated air) with A/C to
provide colder airflow.
3. Set the temperature to 60°F (16°C).
4. Set highest fan speed initially, then adjust to maintain comfort.
To aid in side window defogging/demisting in cold weather:
1. Select (panel/floor).
2. Select A/C.
3. Adjust the temperature control to maintain comfort.
4. Set the fan speed to the highest setting.
5. Direct the outer instrument panel vents towards the side windows.
To increase airflow to the outer instrument panel vents, close the vents
located in the middle of the instrument panel.
REAR WINDOW DEFROSTER (IF EQUIPPED) R
The rear defroster control is located on the climate control panel and
works to defrost your rear window from fog and thin ice. If equipped, it
also operates the heated mirror to remove snow and thin ice from the
side mirrors.
Ensure that the ignition on. Press to turn the defroster on/off. The
indicator light will illuminate when activated. For vehicles with a sliding
rear window– the defroster will be disabled when the window is opened.
Do not use razor blades or other sharp objects to clean the inside
of the rear window or to remove decals from the inside of the
rear window. This may cause damage to the heated grid lines and
will not be covered by your warranty.
Climate Controls
84
2011 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)