4-9
SECTION 4 –
APPLIANCES AND SYSTEMS
FURNACE-A/C THERMOSTAT OPERATION CHART
The following chart shows the system functions with the “Heat/Cool” thermostat. Disregard references
to heat functions when using the “Cool Only” thermostat in the rear bedroom.
DUCTED ROOF AIR
CONDITIONING SYSTEM
The furnace thermostat also controls ducted
roof air conditioner operation when the
thermostat switch is placed in “cool” position.
All cooling functions controlling to setpoint
have a short cycle protection time delay of 3
minutes. There will be no delay if the cycle OFF
time exceeds 3 minutes.
NOTE: The ducted roof air conditioning system
has ceiling registers that can be closed if
necessary to force more cool air toward
a specific area of the coach or to route
cool air away from a specific area. If too
many vents are closed, however, it can
cause the air conditioner unit to shut
down, particularly in high humidity
conditions.
Further Information
Refer to the air conditioner manufacturer’s
information in your InfoCase for complete
operating instructions.
X = Switch Position
O = Switch position does not matter or is inactive for this feature
FAN MODE
SWITCH
THERMOSTAT SWITCH
FAN SPEED
SWITCH
WHAT HAPPENS
Auto
On
Cool
Off
Gas * Elect *
Lo
Hi
X
X
O
O
If the Thermostat Switch is Off and the Fan
Switch is on Auto, the whole heating and
cooling system is off - nothing is happening.
X
X
X
A/C Fan runs continuously at Low Speed.
X
X
X
A/C Fan runs continuously at High Speed.
Gas Furnace Heating:
O
O
X
O
O
Furnace Blower runs along with the LP Gas
Furnace, which turns on and off as needed
according to thermostat setting.
A/C Cooling:
X
X
X
A/C Fan runs at Low Speed along with the
Air Conditioner, which turns on and off as
needed according to thermostat setting.
X
X
X
A/C Fan runs at High Speed along with the
Air Conditioner, which turns on and off as
needed according to thermostat setting.
X
X
X
A/C Fan runs continuously at Low Speed
while the Air Conditioner turns on and off
according to thermostat setting.
X
X
X
A/C Fan runs continuously at High Speed
while the Air Conditioner turns on and off
according to thermostat setting.
* NOTE: These instructions include the optional heat pump, which may not be equipped on your model. If you
do not have a heat pump, the Thermostat Switch Gas position is the same as the Heat position on your
thermostat. In this case, ignore the Electric Heat Switch settings, which apply to the heat pump only.
