THOR CLASS A Owner'S Manual Download

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H E AT I N G A N D C O O L I N G

T H O R M O T O R C O A C H | M A D E T O F I T

• At the beginning of the travel season, before each trip,

and periodically during the travel season, test the combi-

nation CO/LP detector for proper function. Immediately

repair or replace malfunctioning CO/LP detectors.

• Inspect furnace venting. Venting must be free of

obstructions, absent of soot, and properly terminated

to the exterior of the motorhome. Make sure that the

vent assembly is positioned tight against outer door.

• Periodically inspect the exhaust vent for soot. Soot is

formed whenever combustion is incomplete. This is

your visual warning that the furnace is operating in

an unsafe manner. If soot is present, immediately shut

furnace down and arrange for repairs by a qualified

service center or technician.

• Keep furnace clean. More frequent cleaning may be

required due to excessive lint from carpeting, bedding

material, pet hair, etc. It is imperative that the control

compartment, burners, and circulating air passage-

ways of the appliance be kept clean and unobstructed.

• The furnace motor is permanently lubricated and

requires no oiling.

• Keep the furnace area clear of any combustible materi-

als, flammable liquids or vapors.

• Before operating furnace, check the location of the

furnace vent to make sure it will not be blocked by the

opening of any door or obstacle. Do not operate the

furnace if the vent is blocked or obstructed in any way.

• Do not restrict the flow of combustion air or the warm

air circulation of the furnace. To do so could cause

furnace malfunction, leading to personal injury and/

or death.

• Never operate the furnace if you smell gas. Do not assume

that the smell of gas in your motorhome is normal. Any

time you detect the odor of gas in you motorhome,

consider it life threatening and correct the problem

immediately. Extinguish all open flames; evacuate the

motorhome; shut off the LP gas supply at the tank.

• Immediately shut furnace down and call a service

technician for repairs if the furnace cycles erratically

or delays on ignition.

• Never attempt to repair the furnace by yourself or by

an unqualified person.

• Never restrict the ducting installed by the RV man-

ufacturer. To do so could cause improper furnace

operation.

• Do not install air boosters (fans) in the duct system.

Such devices will cause the furnace to cycle on limit

and to have erratic operation.

• Do not place clothing or other flammable materials on

or near the furnace.

• Always follow operating instructions. Do not deviate

from step-by-step instructions.

• Do not use petroleum or citrus type cleaner on plastic

parts, as damage may occur.

Hydronic Heating System

The heaters (both diesel and electric) must be switched

OFF when refueling the motorhome.
DO NOT operate the Aqua-Hot’s diesel-burner inside

an enclosed building.

DANGER

Read and follow all safety warnings affixed to the Aqua-

Hot boiler unit and published in the manufacturer’s

manual.

WARNING

Select TMC diesel motorhomes are equipped with an

Aqua-Hot

Hydronic Heating System. This low-emissions

system uses hot water to heat the cabin and bay areas of

the motorhome. The Aqua-Hot Heating System is three

systems in one:

• Interior Heating System:

provides quiet, comfortable

interior heat with independent temperature zones that

provide cabin-wide even temperature control.

• Bay Heating System:

keeps pipes and tanks from

freezing in the bay storage area.

• Tank-less Hot Water System:

provides a steady flow of

continuous hot water.

NOTE: Detailed information regarding hydronic heat-
ing systems is not covered in this manual. Refer to
the manufacturer’s owner’s manual included with your
TMC Owner’s Packet, the on-line TMC Owners Re-
source, The TMC HVAC System Guide, or visit the
manufacturer’s web site.