Vermont Casting DBT36 - Manual (Page 13)

10002789/0 -13- DBT33/DBT36/DBT39
V
ERTICAL
S
IDEWALL
I
NSTALLATIONS
STEP 1
Locate vent opening on the wall. It may be necessary to
rst position the replace and measure to obtain hole location.
Depending on whether the wall is combustible or non-combus-
tible, cut opening to size. (Fig. 22)
(For combustible walls rst frame in opening. Fig. 22).
COMBUSTIBLE WALLS : Cut a 9-3/8"H x 9-3/8"W (240
mm x 240 mm) hole through the exterior wall and frame as
shown (Fig. 22).
NON-COMBUSTIBLE WALLS : Hole opening should be
7.5" (190 mm) in diameter.
STEP 2
Measure wall thickness and cut zero clearance sleeve parts to
proper length (MAXIMUM 12” / 305 mm). Assemble sleeve
and attach to restop with #8 sheet metal screws (supplied).
Install restop assembly (Fig. 23).
Zero clearance sleeve is only required for combustible walls.
STEP 3
Place replace into position. (Fig. 24). Measure the vertical
height (X) required from the base of the ue collars to the
centre of the wall opening.
STEP 4
Apply a bead of silicone to the inner and outer ue collars of
the replace and using three (3) screws attach an appropriate
length of vent to the replace. Follow with the installation of
the inner and outer elbow, again secure joints as described in
the section 'Joining DV Components'.
STEP 5
Measure the horizontal length requirement including a 2" (50
mm) overlap, i.e. from the elbow to the outside wall face plus
2" (50 mm)(or the distance required if installing a second 90º
elbow. (Fig. 25).
Always install horizontal venting on a level plane.
Fig. 22
Fig. 23
Fig. 24
Fig. 25