Majestic 33LDVT Installation Instructions And Homeowner's Manual page 17

STEP 5
Measure the horizontal length requirement including a
2" (51 mm) overlap, ie from the elbow to the outside wall
face plus 2" (51 mm) (or the distance required if installing
a second 90° elbow). (Fig. 23)
Always install horizontal venting on a level
plane.
STEP 6
Use appropriate length of pipe sections - telescopic or fixed
- and install the horizontal vent sections. The sections which
go through the wall are packaged with the starter kit, and
can be cut to suit if necessary. (Fig. 24)
Sealing vent pipe and firestop gaps with high
temperature sealant will restrict cold air being
drawn in around fireplace.
Fig. 24 Through the wall.
STEP 7
Guide the vent terminations 4" and 7" collars into their
respective vent pipes. Double check that the vent pipes
overlap the collars by 2" (51 mm). Secure the termination
to the wall with screws provided and caulk around the
wall plate to weatherproof. (Fig. 25) As an alternative to
screwing the termination directly to the wall you may also
use expanding plugs or an approved exterior construc-
tion adhesive. You may also attach the termination with
screws through the inner body into the 4" (102 mm) vent
pipe however for this method you must extend the 4" (102
mm) pipe approximately 6" (152 mm) beyond the outer
face of the wall.
10007852
Fig. 25 Apply high temperature sealant to collars or termina-
tions.
Support horizontal pipes every 3' (914 mm) with metal
pipe straps. Make sure the horizontal vent pipe is in-
stalled on a level horizontal plane.
Vertical Sidewall Installation
NOTE: The 40" (1016 mm) flex vent is used for 90° off
the top of the unit then out the back wall.
Follow Step 1 and 2 on Page 16.
Step 3
Install the four (4) spacer springs on the 4" flex vent
pipe. When installing the spacer springs around the 4"
pipe, stretch the spring to approximately 15" (381 mm),
wrap the spring around the pipe and interlock the ends
of the spacer spring approximately 2" (51 mm). Measure
6³⁄₄" (172 mm) from the end of the pipe. Place the next
FP1242
spring 5" (127 mm) from the previously installed spring.
Place the next spring 6" (152 mm) from the last spring.
Finally place the last spring 12" (305 mm) from the last
spring installed. (Fig. 26)
4" Flex Vent
Pipe
Spacer Spring
Fig. 26 Install spacer springs.
LDVT Series Direct Vent GaS Fireplace
Flex Vent Pipe
12"
(305mm)
6"
(152mm)
5"
(127mm)
6 "
(172mm)
FP1474
spacer springs
4/04 djt
FP1243
FP1474
17