FORD 2009 F-550 v.3 - Manual (Page 81)

3. Set the fan speed to the highest setting.
4. 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.
MANUAL HEATING AND AIR CONDITIONING SYSTEMS
(IF EQUIPPED)
• Manual heating and air
conditioning system
• Manual heating and air
conditioning system with heated
mirrors
• Manual heating and air
conditioning system with heated
mirrors and heated seats
2009 F-250/350/450/550 (f23)
Owners Guide, 3rd Printing
USA (fus)
Climate Controls
81