Majestic DVLB7 Series Manual page 17

DVBL7 Series Gas Fireplace
VertIcaL SIDewaLL InStaLLatIon -
twISt LocK pIpe
Step 1
Locate vent opening on the wall. It may be necessary to
first position the fireplace and measure to obtain hole lo-
cation. Depending on whether the wall is combustible or
noncombustible, cut opening to size. Figure 16 (For com-
bustible walls first frame in opening.)
note: When using flex vent, the opening will have to be
measured according to the 1/" (13 mm) rise in 1" (305
mm) vent run.
combustible walls: Cut a 9B\,"H x 9B\,"W (44 x 44 mm)
hole through the exterior wall and frame as shown. Figure
16
noncombustible walls: Hole opening must be 7Z\x" (191
mm) in diameter.
Vent opening for combustible walls
9B\,"
(44 mm) Min.
9B\,"
(44 mm)
Min.
Fireplace Hearth
opening for noncombustible wall
7Z\x"
(190 mm)
Figure 16 - Fireplace Hearth
Locate vent opening on wall.
Step 2
Secure firestop to the inside frame, center in the 9B\," x
VO584-100
9B\," vent opening.
Vent Opening
Step 3
2/99 djt
Place fireplace into position. Measure the vertical height
(X) required from the base of the flue collars to the center
of the wall opening. Figure 17
74D3001
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Framing Detail
FP93
Figure 17 -
Vertical Height
Requirement
Step 4
Using appropriate length of pipe section(s) attach to fire-
place with three (3) screws. Follow with the installation of
the inner and outer elbow, again secure joints with three
(3) sheet metal screws.
Step 5
Measure the horizontal length requirement including a "
(51 mm) overlap, i.e. from the elbow to the outside wall
face plus " (51 mm) (or the distance required if installing
a second 90° elbow). Figure 18
always install horizontal venting on a level
plane.
Figure 18 -
Horizontal Length
Requirement
Step 6
Use appropriate length of pipe sections - telescopic or
fixed - and install. The sections which go through the wall
are packaged with the starter kit, and can be cut to suit if
necessary.
Vent InStaLLatIon
X
FP1181
X
FP118
X
X
17