SECTION 4
APPLIANCES & SYSTEMS
4-8
Class A
extract heat from the outside air on a cold day and
carry it to the inside of the coach to maintain a
comfortable temperature.
The efficiency of a heat pump decreases as the
outdoor air temperature drops, so supplementary
heat is often needed when the outside
temperature nears freezing. This system is set to
automatically start the propane gas furnace to
assist the heat pump if room temperature cools to
5 degrees or more below the thermostat set
temperature. You may wish to manually switch
to furnace heat to maintain a higher temperature
when outside temperatures begin to reduce the
efficiency of the heat pump. The heat pump will
not operate when the outside temperature falls
below 36 degrees F.
To operate the heat pump
For complete operating instructions, refer to
the manufacturer’s information provided in your
InfoCase.
If the furnace must assist the heat pump three
times in a row, the thermostat will shut down the
heat pump for two hours and the furnace will take
over as the heat source. After two hours the heat
pump will become active again and try to be the
primary heat source.
Check your Air Filter
Closed or blocked vents and dirty air filter can
hinder the efficiency of a heat pump.
•
Be sure ceiling vents are open to distribute
heat pump output air.
•
The filter washable foam should be checked
monthly for dirt build-up and cleaned or
replaced as needed. It is located in the ceiling
mounted return AC grille in the lounge area,
and bedroom if equipped with second AC
unit.
DUCTED ROOF AIR
CONDITIONING SYSTEM
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.
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.
REAR AIR CONDITIONER
POWER SELECTOR SWITCH
(models with 2 roof air units only)
If you want to run the rear AC unit, you must
switch the Rear A/C Selector switch to the proper
power source.
Gas Heat = Gas Furnace
Electric Heat = Heat Pump
Cool = Roof Air Conditioner