Heating And Air Conditioning; Dash Panel Heater And Air Conditioner - Thor Motor Coach Class B+ Owner's Manual

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 fire wall. 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.
The air conditioning system is designed to operate in all modes except VENT,
FLOOR and OFF. This provides significant moisture, dust and pollen removal for
enhanced passenger comfort. Use MAX A/C and HI blower for quick cool down. A
lower blower speed produces cooler air. To assist with cooling, close all windows
and vents to hot, humid outside air.
Note: The A/C will not function if the outside air temperature is
below approximately 40° Fahrenheit.
Note: In the event control vacuum is lost, the system is designed
to discharge through the defrost vents.
To achieve the maximum comfort in the motorhome, the air must be directed where it
is needed. The mode switch (right of center) gives the driver the ability to select where
the air will flow.
Keep the condenser and radiator free of bugs and debris. During periods of little
use, operate the A/C system monthly to keep the compressor lubricated. Periodically
inspect belts and hoses for wear and proper tension.
If repairs are necessary during the terms of the motorhome warranty, please contact
the nearest authorized Thor Motor Coach dealer for service. In the event repairs
are necessary during transit, contact Thor Motor Coach Customer Service. Certain
individual parts of the Heating and Air Conditioning System such as the compressor,
dryer and condenser are covered under the chassis manufacturer warranty.
Note: Components covered under the Thor Motor Coach Limited
Warranty must be Original Equipment Manufacturer (OEM)
parts. The installation of after market components, or
unauthorized repairs may void the warranty.

Heating and Air Conditioning

DASH PANEL
HEATER AND AIR
CONDITIONER
Control Panel
Operating Features
Warranty/Service
87