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Small Vent Installation; Standard Door Installation; Flush Door Installation - Atwood AFMD16 Technical Installation Manual

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SMALL VENT INSTALLATION

To prevent moisture from entering inside of coach, apply RTV type
sealant to the back of the bezel flange of the vent part.
Vents are designed to allow water drainage when installed correctly.
Vents are design to allow for different wall thickness up to a
maximum of 2-1/2"
1.
Locate vent hole cutout as called out in Figure 2.
2.
Drill 3-1/2" diameter hole through sidewall of coach maximum wall
thickness 2-1/2".
3.
Remove vent and vent ring from furnace.
4.
Insert furnace from backside of wall, lining up hole in wall with vent
in furnace.
5.
Apply sealant to back of vent ring.
6.
Install vent assembly with HOT at top on horizontal installations and
HOT on right side for vertical installations. Vent ring must slip
inside combustion air intake tube. Secure to wall with 2 screws not
provided.
7.
Vent assembly must maintain minimum overlap of 1-1/4" on exhaust
tube and 1/2" minimum on combustion air tube. DO NOT exceed
maximum wall thickness.
8.
Secure furnace to floor with legs provided on back of casing. For
vertical units casing legs can be positioned for placement to secure
furnace.

STANDARD DOOR INSTALLATION

Figure 2
The furnace must always be installed level (front to back, side to
side) to prevent water intrusion into the interior.
To prevent moisture from entering inside of coach, apply RTV type
sealant to all sealing areas.
The door bezel must fit tightly, to prevent water leakage.
Doors are designed to allow water drainage in either horizontal or
vertical installations. Proper location of vent assembly is important
for proper exhausting of fumes and proper function of furnace.
1.
Locate and cut hole location in side wall per figure 3.
2.
Apply RTV type sealant to entire back flange of bezel creating a
sealing area.
3.
Pull furnace forward through cutout about a 1" inch, slip bezel
around casing, and flush inner flange with casing.
4.
Secure bezel to furnace casing with 6 screws.
5.
Push furnace and bezel back tight against side wall and secure with
14 screws.
6.
When installing screws DO NOT deform bezel.
7.
Connect the gas line to the valve and push the gas line plug into
casing opening.
8.
Remove excess sealant from around bezel and visually inspect
bezel to make sure it is completely sealed.
9.
Secure furnace to floor with mounting legs provided.
10. Fasten door and vent with 6 screws provided.

FLUSH DOOR INSTALLATION

The furnace must always be installed level (front to back, side to
side) to prevent water intrusion into the interior.
To prevent moisture from entering inside of coach, apply RTV type
sealant to all sealing areas.
The door bezel must fit tightly, to prevent water leakage.
Doors are designed to allow water drainage in either horizontal or
vertical installations. Proper location of vent assembly is important
for proper exhausting of fumes and proper function of furnace.
1.
Locate and cut hole location in side wall per figure 4.
2.
Flush mounted doors system require that the furnace be install on a
1" high platform to allow for the door cutout to be level with the floor
surface.
3.
Apply RTV type sealant to entire back flange of bezel creating a
seal area.
4.
Secure bezel by inserting bezel into wall cutout and securing
through the 10 mounting tabs to the side wall framing. Make sure
that the bezel is tight against the side wall.
5.
Connect the gas line to the valve and push the gas line plug into
casing opening.
6.
The door bezel must fit tightly against sidewall to prevent water
leakage.
7.
Remove excess sealant from around bezel and visually inspect
bezel to make sure it is completely sealed.
8.
Secure furnace with mounting legs provided.
9.
Fasten door and vent with 6 screws provided.
4
Figure 3
Figure 4

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