Thor Motor Coach CLASS B, Owner'S Manual

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Detailed information regarding the heating and cooling
equipment that is uniquely specific to your motorhome is not
covered in this manual. Please review and retain all manufac-
turer's owner's manuals and documentation that is included
with your TMC Owner's Packet. The manufacturers of the
heating and cooling equipment installed in your motorhome
are the best source for information regarding component
features, operation, and maintenance.
Always refer to the manufacturer's documentation if you have
questions regarding your heating and cooling system. TMC
Customer Care representatives are also available to answer
any question you may have; call, toll free at:
877-855-2867.
NOTES:
• State and local laws may restrict the use of pro-
pane appliances while the vehicle is in motion. Be
sure to follow all regulations regarding the trans-
portation of propane gas.
• For additional information regarding heating and
cooling systems installed on your motorhome,
please refer to the TMC HVAC System Guide
and the HVAC manufacturer’s product information
available through the TMC on-line Owners Re-
source Document Service:
https://www.thormotorcoach.com/owner-resource/
Heat-only Furnace (if equipped)
Your Class B motorhome
may have a heat-only
furnace similar to this
illustration. On and
off, along with fan and
temperature controls
are integrated into the
multiplex control panel.
Be certain not to block
the furnace grill with any
items, such as luggage,
clothing or other cargo.
TO OPERATE:
1. Turn ON the main battery disconnect switch. Doing so
provides power for the multiplex system and the furnace
controls.
2. Turn ON the main gas valve (see Propane System, Section 9).
3. Locate the furnace controls on the multiplex panel and
adjust the temperature to the desired setting. The furnace
will cycle on and off as heat demand requires.
Combination Furnace/Water Heater (if
equipped)
CARBON-MONOXIDE POISONING HAZARD!
Failure to follow instructions could result in severe
personal injury or death due to carbon-monoxide
poisoning if combustion gases enter the RV.
Check that all openings in the outside wall around
the vent (and air intake) pipe(s) are sealed to prevent
combustion gases entering the RV.
Check that furnace vent and air intake are not
obstructed in any way.
Never operate the combination furnace/water heater in
an enclosed or confined space.
This combination furnace/water heater presents
danger of hot surfaces and hot gases. Do not touch the
area around the wall cowl and do not lean any objects
against the wall cowl (furnace exhaust).
WARNING WARNING
IMPORTANT! Read and follow the manufacturer’s
instructions regarding safety, operation, maintenance, and
winterization of the furnace/water heater.
Your motorhome is equipped with a factory-installed LP-fired
combination furnace and water heater, designed specifically
for recreational vehicles (also refer to the Water Section of
this manual). The furnace/water heater combination unit is a
tank design and holds a volume of 2.6 gallons of water. Some
models use a combination of LP gas and electric to rapidly
heat water and provide warm air.
For complete safety, operational, and maintenance infor-
mation on the furnace/water heater unit installed in your
motorhome, please refer to the manufacturer’s instructions
contained in your Owner’s Packet or visit the water heater
manufacturer’s website. Product information is also available
in the TMC Water System Guide and from the on-line TMC
Owners Resource document service. TMC Customer Care
representatives are also available to answer any question you
may have; call, toll free at:
877-855-2867.
NOTE: DO NOT allow water to freeze within the
furnace/water heater unit. When winterizing the water
system, the water tank of the unit MUST be drained.
DO NOT use compressed air to drain the unit. DO
NOT place anti-freeze solutions in the tank of the fur-
nace/water heater unit.