IMPORTANT SAFETY INSTRUCTIONS AND DOCUMENT SYMBOLS
• FIRE OR EXPLOSION HAZ ARD:
• Do NOT store gasoline, oil- or gasoline-soaked rags, or other flammable vapors and liq uids inside storage compartment(s) .
• BEFORE refueling or parking near a gas oline pump, make sure ALL liquid propane (LP) gas appliances (vented to the
outside of the RV) are shut OFF . Oth erwise, fumes from gasoline pumps could come into contact with an LP gas appliance
burner flame and ignite .
• Turn OFF LP gas supply at the tank .
• Keep the Furnace area free and clear of insulating material, as insulating materials may be combustible . Examine the
Furnace area after installation or when insulation is added .
• Use only with the type of gas approved for the Furnace . Refer to the Furnace rating plate .
• All DFSA, DFS, DFM, and DFLD models: LP ONLY
• All DFLA models: LP or Natural Gas
• Do NOT overfill LP gas tanks . LP tanks must be filled by a qualified gas supplier only . Follow the tank manufacturer's
operating instructions located on the tank .
• Immediately shut down the Furnace and call a service agency if the Furnace cycles erratically or delays on ignition .
• Shut OFF the gas valve to the Furnace before shutting off the electrical supply if the gas supply fails to shut off, or if
overheating occurs .
• Use only Dometic replacement parts and components, which are specifically approved for use with the Furnace .
• CRITICAL OPERATION WARNINGS:
• Do NOT use the Furnace cabinet area as a storage compartment .
• Do NOT keep insulating material, clothing, or flammable material on or near the Furnace .
• Do NOT use for temporary heating of buildings or structures under construction .
• Do NOT use the Furnace if any part has been under water .
• Do NOT use petroleum or citrus-type cleaner on plastic parts, as damage may occur .
• Do NOT restrict the ducting or block Furnace outlet registers and return-air grills .
• Do NOT install screens over the intake air or exhaust vents for any reason .
• Do NOT install air boosters in the duct system .
• Do NOT touch exterior exhaust grills when the Furnace is operating .
• Supervise young children who are in the same room as the Furnace .
• All sheet metal edges are sharp; take care when handling or touching edges .
• Protect Furnace electrical components from water .
• Protect building materials from degrading from vent assembly gas exhaust .
• Compartment must be closed when operating the Furnace .
• CARBON MONOXIDE HAZARD:
• This Furnace can produce carbon monoxide, which has no odor and can be life-threatening . The burner and vent assembly
system MUST be kept clean .
• Do NOT operate the Furnace if vent ing into a room enclosure with the privacy pan els closed . At least one panel MUST be
open for ventilation when using the Furnace .
• Doors MUST be properly sealed and the draft cap and assemblies MUST be adjusted and sealed correctly to prevent
carbon monoxide from entering the RV .
• Do NOT allow snow or any objects to block the exhaust system of the Furnace .
• Combustion products MUST be properly vented to the atmosphere, so that all combustion air supplied to the burner is
drawn from the outside atmosphere .
• Use only Dometic replacement parts and components, which are specifically approved for use with the Furnace .
• ELECTRICAL SHOCK HAZARD:
• Furnaces with 12 VDC connection are for low-voltage battery or direct current only . Do NOT connect to 120 or 240 VAC .
• This Furnace is designed for negative ground 12 VDC only . Do NOT attempt to alter the Furnace for a positive ground
system or connect the Furnace directly to 120 or 240 VAC .
• Do NOT use battery charger to supply power to DC model Furnaces even when testing .
• Use only Dometic replacement parts and components, which are specifically approved for use with the Furnace .
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