HVAC Control Panel (if equipped)
 
         
         To operate the cab heater, rotate the fan control1 to
            the desired fan speed setting. The far left setting turns the fan
            off. 
Adjust the temperature by rotating the temperature
            control 2 to the desired heat setting. Rotate the control
            clockwise to increase heat or counter-clockwise to decrease heat. 
Press the top of the A/C switch 3 to enable the
            air conditioning system for cooling or defrost purposes.