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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 aer 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 dra 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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