Dometic DF Serie Instructions D'installation page 18

INSTALLATION
C. Installing The Furnace Using The Small Vent Option
 Failure to obey this warning could result in property damage, serious injury, or death:
• Do NOT install vents where projection or door openings come within 6" of the vent opening . The RV door, panel, or cover material
may discolor, warp, or burn from the exhaust temperature .
• CARBON MONOXIDE HAZARD:
• Properly seal the vent assembly to prevent carbon monoxide from entering the RV . Do NOT vent exhaust air or draw
combustion air from the living area or an enclosed porch .
• Do NOT vent the Furnace with a venting system serving another appliance .
Access must be provided directly in front of the Furnace on the inside of the RV for removal of the Furnace during servicing .
STEP 1
Wall Hole
RV Wall
• Locate the Furnace exhaust vent cutout location .
• Drill a 3-1/2" dia . hole through the wall for intake/exhaust .
The maximum exterior wall thickness is 2-1/2" . Do NOT
exceed maximum wall thickness . Purchase an optional vent
kit to extend the vent to a 3" wall thickness, if necessary .
3-1/2"
Vent
Panel
Wall Hole
STEP 2
Vent
Panel
Vent Extension
RV Wall
• Apply butyl tape or RTV sealant to the back flange of the
vent extension before securing to the wall .
• Hold the vent extension with the printed "THIS SIDE UP"
text at the top, and the water dam at the bottom .
• Push the vent extension into the wall until it slides onto the
vent panel .
• Align the vent assembly (provided) over the vent extension
so that the Dometic text is at the TOP .
• Push the vent assembly into the chamber tube and secure
using four stainless steel exhaust screws (not provided) .
Overlap the vent tube over the chamber tube by a
minimum of 1-1/2" for proper venting of exhaust fumes .
• Connect the electrical wiring . Refer to "H . Connecting The
Electrical" on page 22 .
• Connect the gas line to the valve . Refer to "F . Connecting
The Gas" on page 20 .
• Push the Furnace vent panel against the RV wall .
The Furnace vent panel MUST be pushed against the RV
wall before installing the mounting brackets .
• Proceed to "D . Installing The Mounting Brackets" on page 19 .
18
Sealant
Water Dam
Vent Assembly