72-DVT30N-2
24
5.
Mark the wall with an
11”
(279mm) x
10”
(254mm) hole. See
termination framing on page 21. The center of the hole
should line up with the centerline of the horizontal pipe. Cut
and frame the
11”
(279mm) x
10”
(254mm) hole in the
exterior wall where the vent will be terminated. If the wall
being penetrated is constructed of non
-
combustible material,
(i.e. a masonry block, or concrete) a hole with zero clearance
is acceptable. NOTES: The horizontal run of vent must be
level, or have a ¼
” (6
mm) rise for every
12” (305
mm) of run
towards the termination. Never allow the vent to run
downward. This could cause high temperatures and may
present the possibility of a fire. ALSO: The location of the
horizontal vent termination on an exterior wall must meet
local and national building codes, and must not be blocked or
obstructed. For Allowable Termination Locations see page
13 in this manual.
6.
Position the Horizontal Vent Termination in the center of the
square hole (arrow on the vent cap should be facing UP),
and run a bead of non
-
hardening non
-
silicone sealant around
the outside edges of the termination, so as to make a seal
between the termination and the wall. Finish attaching the
termination cap to the wall with the four wood screws
provided with the termination cap. NOTE: The four wood
screws provided should be replaced with the appropriate
fasteners for stucco, brick, concrete or other types of siding.
For buildings with VINYL SIDING, a Vinyl Siding Standoff
should be installed between the vent cap and the exterior
wall. Attach the Vinyl Siding Standoff to the Horizontal
Termination Cap by bolting the flat portion of the Vinyl Siding
Standoff (Fig.1.) so that an air space will exist between the
wall and the Vent Termination.
7.
Locate and slide the Wall Thimble Cover over the vent pipe.
8.
Slide the appliance and vent assembly towards the wall,
carefully inserting the vent pipe into the vent cap assembly. It
is important that the vent pipe extend into the vent cap
sufficient distance so as to result in a minimum pipe overlap
of
1
-
1/4” (31
mm). Secure the connection between the vent
pipe and the vent cap by attaching the two sheet metal strips
extending from the vent cap assembly into the outer wall of
the vent pipe. Use the two sheet metal screws provided to
connect the strips to the pipe section. Bend any remaining
portion of the sheet metal strip back towards the vent cap, so
it will be concealed by the Wall Thimble Cover. (Fig. 2.)
9.
Slide the Wall Thimble Cover up to the wall surface and
attach to the wall with wood screws. (Fig. 3.)
VENTING
-
HORIZONTALLY USING SIMPSON DURA
-
VENT DIRECT VENT SYSTEMS
INSTALLATION PROCEDURES FOR SIMPSON DURA
-
VENT DIRECT VENT SYSTEM
Fig. 1
Fig. 2
Fig. 3
NOTE
:
Apply high temperature sealant to inner and outer pipe on every Simpson Dura
-
Vent twist
-
lock joint.