Majestic 33BDVR Installation Instructions And Homeowner's Manual page 16

BDVR Series Direct Vent Gas Fireplace
STEP 2
Measure wall thickness and cut adjustable zero clear-
ance sleeve parts to proper length (MAXIMUM 12"/
305mm). (Fig. 23) Adjust sleeve to minimum (9³⁄₈" x
9³⁄₈" and attach to firestop with #8 sheet metal screws
(supplied). Assemble sleeve and attach to firestop with
#8 sheet metal screws (supplied). Install firestop
assembly.
Zero clearance sleeve is only required
for combustible walls.
Adjustable Zero
Clearance Sleeve
#8 Screws
(2)
#8 Screws (2)
Wall Exterior
Wood Framing
Firestop
Vent Pipe
Drywall
Fig. 23 Locate vent opening on wall.
STEP 3
Apply a bead of high temperature sealant to the inner
and outer flue collars of the fireplace and using appro-
priate venting component(s) attach to fireplace with
three (3) screws. (Fig. 24) Follow with the installation
of the inner and outer elbow. Again secure joints with
three (3) sheet metal screws. Wipe off any excess high
temperature sealant.
Ensure Pipes are
Concentric
Fig. 24 Apply sealant to inner and outer pipe.
16
Maximum Length
12" (305mm)
#8 Screws (2)
Adjustable
Zero
Clearance
Sleeve
Firestop
Zero Clearance
Sleeve Flush with
Wall Exterior
CFM135
X
7TDVRT90
Bead of
Sealant
(If necessary)
CFM143
STEP 4
Measure the horizontal length requirement including a
2" (50mm) overlap, i.e. from the elbow to the outside
wall finish plus 2", or the distance required if installing
a second 90° elbow. (Fig. 25)
Always install
horizontal venting
on a level plane.
Fig. 25 Measure horizontal length including 2" overlap.
STEP 5
Use appropriate length of pipe section - telescopic or
fixed - and install the horizontal vent sections. The 20"
(508mm) section of pipe which goes through the wall is
packaged with the 7TDVSK starter kit, and can be cut
to suit if necessary. (Fig. 26)
Sealing vent pipe and firestop gaps with
high temperature sealant will restrict
cold air being drawn in around fireplace.
High
Temperature Sealant
Fig. 26 Apply high temperature sealant.
X
CFM136
X
CFM137
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