Trek SSDVPF-CNE, SSDVPF-CNM, SSDVST-CNE, SSDVST-CNM Figure 32 -

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE. 19

HORIZONTAL (OUTSIDE WALL)

TERMINATION SYSTEM

See Figure 32, and Figures 35 to 40 and

their associated Horizontal Vent Table which

illustrates the horizontal venting conﬁ gura-

tions that are allowed to be used with these

appliances. Secure Vent pipe applications are

shown in these ﬁ gures; Secure Flex pipe may

also be used (see Page 24). 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 speciﬁ c areas. Refer to

Figure 6 on Page 8 for location guidelines.

Secure Vent SV4.5 direct vent system compo-

nents are unitized concentric pipe components

featuring positive twist lock connection, (refer

to Figure 20 on Page 15). All of the appli-

ances covered in this document are ﬁ tted with

collars having locking inclined channels. The

dimpled end of the vent components ﬁ t over

the appliance collar to create the 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" (876 mm) and 46-1/2" (1181

mm) net section lengths are available. Plan the

vent lengths so that a section joint does not occur

within the space deﬁ ned by ceiling joists, roof

rafters or wall studs. Make allowances for elbows

as indicated in Figure 23 on Page 16.

Figure 32 -TYPICAL HORIZONTAL VENT INSTALLATION

See Figures 21 & 22 for verti-

cal vent section support.

Horizontal / Inclined Run

Support

Brackets

Building

Support

Framing

SV4.5E90

Elbow

Ceiling  Firestop / Spacer

SV4.5VF

 When Using Secure Flex,

Use Firestop / Spacer SF4.5VF

Fireplace

SV4.5L6/12/24/36/48

Vent Sections

Vertical

Rise Support Bracket Spacing

Every 5 ft (1.52 m)

Exterior

Wall

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 clock-

wise running the dimples down and along the

incline channels until they seat at the end of the

channels. This seating position is indicated

by the alignment of the arrow and dimple as

shown in Figure 20 on Page 15.

F. Install ﬁ restop / spacer at ceiling -

When using Secure Vent, use SV4.5VF ﬁ restop

/ spacer at ceiling joists; when using Secure

Flex, use SF4.5VF ﬁ restop / spacer. If there is

living space above the ceiling level, the ﬁ restop/

spacer must be installed on the bottom side of

the ceiling. If attic space is above the ceiling,

the ﬁ restop/ spacer must be installed on the

top side of the joist. Route the vent sections

through the framed opening and secure the

ﬁ restop / spacer with 8d nails or other ap-

propriate fasteners at each corner.

Remember to maintain 1" (25 mm) clearance

to combustibles, framing members, and attic

or ceiling insulation when running vertical

chimney sections. Attic insulation shield

(96K94) may be used to obtain the required

clearances indicated here. See installation

accessories Tables on Pages 31 and 32.

G. Support the vertical run sections -

See Step E on Page 15.

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 direc-

tion 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. See

Figure 20 on Page 15.

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 32. 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 ﬁ replace 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.

Maintain a minimum 1" (25 mm) clearance to

combustibles on the vertical sections. Clear-

ances for the horizontal runs are; 3" (76 mm)

on top, 1" (25 mm) on sides, and 1" (25 mm)

at the bottom.

B. Frame exterior wall opening -

Locate the center of the vent outlet on the exte-

rior wall according to the dimensions shown in

Figures 13 & 14 on Pages 11 & 12.

Cut and/or frame an opening, 10-1/2" x 12 1/8"

(267 mm x 308 mm) 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 (refer

to Figure 19 on Page 15).

D. Attach vent components to appliance - To

attach a vent component to the appliance collar,

align the dimpled end over the collar, adjust-

ing the radial alignment until the four locking

dimples are aligned with the inlets of the four

incline channels on the collar (refer to Figure

20 on Page 15).

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.

E. Attach vent components to each other

- Other vent sections may be added to the

previously installed section in accordance with

the requirements of the vent tables.

SV4.5HT-2

Termination

Shown

SV4.5HT-2

Termination

Shown