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VENTING INSTALLATION
REAR WALL VENT INSTALLATION
(5"
8" VENTING ONLY)
x
When installed as a rear vent unit this appliance may be
vented directly to a termination located on the rear wall
behind the appliance. Only an Vermont Castings Group
brand termination is allowed for this application.
•
The maximum horizontal distance between the rear
of the appliance and the termination is 20" (508 m).
Figure 14.
•
Only one 45° elbow is allowed in these installations.
Rear Vent Top View
20"
(508 mm)
Max.
Figure 14 -
Rear Vent Application,
Maximum Horizontal Distance
1. Rigid vent pipes and fittings have special twist-lock
connections. Assemble the desired combination of pipe
and elbows to the appliance adapter.
FP1188
Twist-lock Procedure: The female ends of the pipes
rear wall install
and fittings have three locking lugs (indentations).
These lugs will slide straight into matching slots on
the male end of adjacent pipes and fittings. Push the
pipe sections together and twist one section clockwise
approximately one-quarter turn until the sections are
fully locked. Figure 15
NOTE: Sealant is not required to assemble fireplace
venting. Do not use silicone sealant at the inner flue
exhaust connections.
NOTE: Horizontal runs of
vent must be supported
every 3' (914 mm). Use wall
straps for this purpose.
Figure 15 -
Rigid Vent Pipe Connections
20306747
FP1953
rigid pipe
20"
(508 mm)
Max.
FP1188
Female
Locking Lugs
Male Slots
FP1953
DVM Series Direct Vent Gas Fireplace
2. Refer to the venting and termination instructions for
further instructions.
3. Locate and cut the vent opening in the wall. For com-
bustible walls first frame in opening.
Combustible Interior Walls: Cut a 12
x 267 mm) hole through the interior wall.
Combustible Exterior Walls: Cut a 10
x 267 mm) square hole through the exterior wall frame.
Figure 16
Noncombustible Walls: Hole opening should be 8
mm) in diameter.
101/2"
(267 mm)
101/2"
(267 mm)
Combustible Wall
81/2"
(216 mm)
Figure 16 -
Exterior Wall Framing Dimensions
4. The center of the hole should align with the center line
of the horizontal rigid vent pipe end. Allow 1/4" minimum
rise per foot. Figure 16
VO584-100
5. Apply a bead of non-hardening mastic around the
Vent Opening
outside edge of vent cap. Position the vent cap in the
2/99 djt
center of hole on the exterior wall with the word "UP"
on the vent cap facing up. Insure proper clearance of
1" to combustibles is maintained. Attach the vent cap
with four wood screws supplied. Figure 17
NOTE: Replace the wood screws with appropriate fasteners
for stucco, brick, concrete, or other types of siding.
For vinyl siding, stucco, or wood exterior use vinyl siding
standoffs between vent cap and exterior wall for Duravent
or Selkirk Terminations only. The vinyl siding standoff pre-
vents excessive heat from melting the vinyl siding mate-
rial. NOTE: Vermont Castings Group Termination does
not require standoff. Bolt the vent cap to the standoff or
wall. Apply non-hardening mastic around outside edge of
the standoff instead of the vent cap assembly. Use wood
screws provided to attach the standoff. Figure 18
⁄
⁄
"H x 10
" W (318
1
1
2
2
⁄
"H x 10
⁄
"W (267
1
1
2
2
⁄
" (216
1
2
Framing
VO584-100
17
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