FOUR WINDS INTERNATIONAL 2007 Presidio, Owner'S Manual

Page: 103 / 173

The air conditioning system contains refrigerant 134a under high pressure and should
be serviced by qualified personnel only. Improper service methods could cause serious
personal injury.
The motorhome is equipped with an integrated heating/air conditioning system. While this
system is much more powerful than those used in passenger cars, it is not capable of heating
and cooling the entire motorhome. This system is designed to provide windshield defrost as well
as heating and cooling for the front seat occupants only. By following the operating instructions
and tips, this heater/air conditioner will provide many years of comfort and dependable service.
The heater/air conditioner unit is located beneath the dash on the passenger side of the
vehicle with heating and cooling coils located on the outside of the firewall. In most modes of
operation the unit takes fresh air from outside, and heats or cools it before discharging into the
motorhome. Only when operated in the MAX A/C mode does the system take air from inside
the motorhome.
The control panel enables the driver to control the temperature, volume and direction of the air
discharged from the heating/air conditioning system.
One of the best ways of controlling temperature is by changing the speed of the blower.
The blower knob (left of center) provides 4 speeds in any mode except OFF. The center knob
controls the temperature of the discharge air. Turn the knob to the right (red area) for warmer
air, and to the left (blue area) for cooler air.
PRESIDIO
8-1
HEATING & AIR CONDITIONING
DASH PANEL HEATER/AIR CONDITIONER
Control Panel