2
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Vertical
Rise
SV4.5E90
Elbow
Horizontal / Inclined Run
SV4.5HTSS
Termination
Shown
*Ceiling
Firestop/Spacer
(SV4.5VF)
SV4.5L6/12/24/36/48
Vent Sections
Support Bracket Spacing
Every 5 ft (1.52 m)
Support
Brackets
Building
Support
Framing
Ceiling
Fireplace
Exterior
Wall
Exterior
Wall
TYPICAL HORIZONTAL VENT INSTALLATION
Firestop/Spacer
SV4.5HTSS
Termination
Shown
Fireplace
*When using Secure Flex use
Firestop/Spacer (SF4.5VF)
Note: Adaptor SV4.5RCH or
SV4.5RCHA must be used to
attach the termination to the
venting system. See Steps J
and K.
Figure 2
H. Change vent direction -
At transition from or
to a horizontal/inclined run, install the SV4.5E45
and SV4.5E90 elbows in the same manner as
the straight vent sections. The elbows feature
a twist section to allow them to be routed about
the center axis of their initial collar section to
align with the required direction of the next
vent run element.
Twist elbow sections in a
clockwise direction only so as to avoid the
possibility of unlocking any of the previously
connected vent sections.
I.
Continue installation of horizontal/inclined
sections -
Continue with the installation of the
straight vent sections in horizontal/inclined run
as described in
Step E
. Install support straps
every 5 ft. (1.52 m) along horizontal/inclined
vent runs using conventional plumber’s tape.
See
Figure 2.
It is very important that the
horizontal/inclined run be maintained in a
straight (no dips) and recommended to be in
a slightly elevated plane, in a direction away
from the fireplace of
1/4" rise per foot (20 mm
per meter) which is ideal, though rise per foot
run ratios that are smaller are acceptable all the
way down to at or near level. Use a carpenter’s
level to measure from a constant surface and
adjust the support straps as necessary.
It is important to maintain the required clear-
ances to combustibles: 1" (26 mm) at all sides
for all vertical runs; and 3" (77 mm) at the
top, 1" (26 mm) at sides, and 1" (26 mm) at
the bottom for all horizontal/inclined runs.
J. Assemble vent run to exterior wall -
If not
previously measured, locate the center of the
vent at the exterior wall. Prepare an opening as
described in
Step B.
Square Horizontal Termination- (SV4.5 HTSS)
Assemble the venting system to a point where
the terminus of the last section is within 6"
(152mm) to 9" (228mm) inboard of the exterior
surface to which the termination is to be at-
tached, see
Figure 4
. Attach Adaptor SV4.5RCH
as shown in
Figure 3
.
NOTE:
An elbow may also be attached to the
appliance collar. Attach in the same manner as
you would a vent section.
E. Attach vent components to each other -
Other vent sections may be added to the previ-
ously installed section in accordance with the
requirements of the vent tables. To add another
vent component to a length of vent run, align
the dimpled end of the component over the
inclined channel end of the previously installed
section, adjusting the radial alignment until the
four locking dimples are aligned with the inlets
of the four incline channels of the previous
section. Push the vent component against the
previous section until it fully engages, then twist
the component clockwise running the dimples
down and along the incline channels until they
seat at the end of the channels.
F.
Install firestop/spacer at ceiling -
When using Secure Vent, use SV4.5VF firestop/
spacer at ceiling joists; when using Secure
Flex, use SF4.5VF firestop/spacer. If there is
living space above the ceiling level, the firestop/
spacer must be installed on the bottom side of
the ceiling. If attic space is above the ceiling,
the firestop/ spacer must be installed on the
top side of the joist. Route the vent sections
through the framed opening and secure the
firestop/spacer with 8d nails or other appropriate
fasteners at each corner.
Remember to maintain 1" (26 mm) clearance
to combustibles, framing members, and attic
or ceiling insulation when running vertical
chimney sections
.
G.
Support the vertical run sections -
On the vertical run, support the venting sys-
tem every 8 feet (2.4m) above the fireplace
vent outlet with field provided support straps
(Plumber's tape). Attach the straps to the vent
pipe and secure to the framing members with
nails or screws.
HORIZONTAL (OUTSIDE WALL)
TERMINATION SYSTEM
Figure 2
, and
Figures 7 to 13
and their associated
Horizontal Vent Tables, illustrate the various hori-
zontal venting configurations that are possible
for use with these appliances.
Secure Vent
pipe
applications are shown in these figures;
Secure
Flex
pipe may also be used. A Horizontal Vent
Table summarizes each system’s minimum and
maximum vertical and horizontal length values
that can be used to design and install the vent
components in a variety of applications. Both
of these horizontal vent systems terminate
through an outside wall. Building Codes limit
or prohibit terminating in specific areas. Refer
to the instructions provided with the fireplace.
Secure Vent
SV4.5 direct vent system compo-
nents are unitized concentric pipe components
featuring positive twist lock connection.
A.
Plan the vent run -
Analyze the vent routing and determine the
types and quantities of sections required
4-1/2" (114 mm), 10-1/2" (267 mm), 22-1/2"
(572 mm), 34-1/2" (877 mm) and 46-1/2"
(1181 mm) net section lengths are available.
Make allowances for elbows as indicated in
the instructions provided with the fireplace.
Maintain a minimum 1" (26 mm) clearance
to combustibles on the vertical sections.
Clearances for the horizontal runs are; 3" (77
mm) on top, 1" (26 mm) on sides, and 1" (26
mm) at the bottom.
B.
Frame exterior wall opening -
Locate the center of the vent outlet on the
exterior wall. Cut and/or frame an opening,
10-1/2" x 12-1/8" (267 mm x 308mm) inside
dimensions, about this center.
C.
Frame ceiling opening -
If the vertical route
is to penetrate a ceiling, use plumb line to locate
the center above the appliance. Cut and/or frame
an opening, 10-1/2" x 10-1/2" (267 mm x 267
mm) inside dimensions, about this center.
D. Attach vent components to appliance -
To
attach a vent component to the appliance
collar, align the dimpled end over the collar,
adjusting the radial alignment until the four
locking dimples are aligned with the inlets of
the four incline channels on the collar. Push
the vent component against the collar until
it fully engages, then twist the component
clockwise, running the dimples down and
along the incline channels until they seat at
the end of the channels. The unitized design
of the
Secure Vent
components will engage
and seal both the inner and outer pipe elements
with the same procedure.
Sealant and securing screws are not required.
f i r e - p a r t s . c o m
