Superior SDV35 User Manual

Page 14

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

To add another vent component to a length of

vent run, align the dimpled end over the inclined

channel end of the previously installed section,

adjusting the radial alignment until the four lock-

ing 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. This seating position

is indicated by the alignment of the arrow and

dimple as shown in Figure 21.

D1. Install firestop/spacer at ceiling between

stories - Install a firestop/spacer (catalog no.

H2247 - Secure Vent; catalog no.H2249 - Secure

Flex) at the bottom side of the ceiling to the ceil-

ing joists. Route the vent sections through the

framed opening and secure the firestop/spacer

with appropriate fasteners at each corner.

Remember to maintain 1" (25 mm) clear-

ance between vertical chimney sections and

combustibles, framing members, and attic or

ceiling insulation.

D2. Install firestop thimble at the ceiling to

roof location - Position appropriate firestop

thimble (see Table on Page 35) at the bottom

side of ceiling and secure temporarily with

two appropriate fasteners. Attach permanently,

using at least two more fasteners, after vent sec-

tions have been assembled through the firestop

thimble and after any necessary adjustments

have been made.

Ensure the thimble penetrates the roof opening.

The thimble must extend completely through the

ceiling or roof cavity to the outermost plane of

the roof. Use thimble extension SVTE26 when

the distance between the outside of the roof and

the inside of the ceiling exceeds the height of

the firestop thimble. The thimble provides for

zero clearances to combustibles and must be

used at the ceiling/roof in manufactured homes

with Secure Vent double wall vent sections.

Maintain 1 in. (25.4 mm) clearance between

the thimble and the outer pipe of the secure

vent chimney system. See Figure 22 (Page 15)

for pitched roofs or flat roofs with flat ceilings

or Figure 23 (Page 15) for pitched roofs with

cathedral ceilings.

Figure 21

Align the dimple (four places) of the

upper vent section with the opening

of the locking incline channel on the

lower vent section or appliance col-

lar. Twist vent component clockwise

to engage and seal until arrow and

dimple align.

Dimple

Locking Incline

Channel

Connected Vent

Sections

Arrow

Appliance Collar or

Vent Section

Roof

Framing

Ceiling

Framing

Plumb

Bob

Figure 20

10-1/2" Min.

(267 mm)

10-1/2" Min.

(267 mm)

Vertical (Offset) Installation

Analyze the vent routing and determine the

quantities of vent sections and number of elbows

required. Refer to Vertical Vent Figures and

Tables on Pages 17 and 18 to select the type

of vertical installation desired. Vent sections

are available in net lengths of 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). Refer to the

Vent Section Length Chart on Page 13 for an

aid in selecting length combinations. Elbows are

available in 90° and 45° configurations. Refer

to Figure 25 on Page 15 for the SV4.5E45 and

SV4.5E90 elbow dimensional specifications.

Where required, a telescopic vent section

(SV4.5LA) may be used to provide the installer

with an option in installing in tight and confined

spaces or where the vent run made up of fixed

length pieces develops a joint in a undesirable

location, or will not build up to the required

length. The SV4.5LA Telescopic Vent Section

has an effective length of from 1 1/2" (38 mm)

to 7 1/2 " (191 mm). The SV4.5LA is fitted with

a locking inclined channel end (identical to a

normal vent section component) and a plain end

with 3 pilot holes. Slip the plain end over the

locking channel end of a standard SV4.5 vent

component the required distance and secure

with three screws.

Maintain a minimum 1" (25 mm) clearance to

combustible materials for all vertical elements.

Clearances for all horizontal elements are 3"

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

(25 mm) on the bottom.

A. Frame ceiling opening - Use a plumb line

from the ceiling above the appliance to locate

center of the vertical run. Cut and/or frame an

opening, 10-1/2" x 10-1/2" (267mm x 267mm)

inside dimensions, about this center mark

(Figure 20).

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 inlet of the four inclined channels

on the collar (refer to Figure 21). 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 chan-

nels. The unitized design of the Secure Vent

components will engage and seal both the inner

and outer pipe without the need for sealant or

screws. If desired, a #6 x 1/2" screw may be

used at the joint, but is not required as the pipe

will securely lock when twisted.

Note: An elbow may also be attached to the

appliance collar. Attach in the same manner

as you would a vent section.

C. Attach vent components to each other

- Other vent sections may be added to the

previously installed section in accordance with

the requirements of the vertical vent Figures

and Tables.

B. Attach vent components to appliance

- Secure Vent SV4.5 direct-vent system compo-

nents are unitized concentric pipe components

featuring positive twist lock connections (see

Figure 21). All of the appliances covered in this

document are fitted with collars having locking

inclined channels. The dimpled end of the vent

components fit over the appliance collar to cre-

ate the positive twist lock connection.