Superior MULTI-OPEN SERIES Installation Instructions Manual page 13

Figure 26
F. Change vent direction to horizontal/in-
clined run - At transition from or to a horizon-
tal/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 clock-
wise direction only so as to avoid the possiblity
of unlocking any of the previously connected
vent sections. See Figure 27 .
4 "
(122 mm)
Swivel Joint
Swivel Joint
(360 swivel)
(360 swivel)
SV4.5E45
SV4.5E90
(45 Elbow)
(90 Elbow)
Figure 27
G. Continue installation of horizontal/inclined
sections - Continue with the installation of the
straight vent sections in horizontal/inclined run
as described in Step C. Install support straps
every 5 ft. (1.52 m) along horizontal/inclined
vent runs using conventional plumber's tape.
See page 16, Figure 37. 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 " 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" (25 mm) at all
sides for all vertical runs; and 3" (76 mm) at
the top, 1" (25 mm) at sides, and 1" (25 mm)
at the bottom for all horizontal/inclined runs.
H. Frame roof opening - Identify location for
vent at the roof. Cut and/or frame opening per
Roof Framing Chart and Figure 28 .
8 feet (2.4 m)
Maximum
Framing Dimensions for Roof
Pitch
0/12
6/12
12/12
Figure 28
I. Install the roof flashing - Extend the vent
sections through the roof structure. Install the
roof flashing over the vent section and posi-
7 " tion such that the vent column rises vertically
(194 mm)
(use carpenters level) ( Figure 29 ). Nail along
perimeter to secure flashing or adjust roofing
to overlap the flashing edges at top and sides
only and trim where necessary. Seal the top
and both sides of the flashing with waterproof
caulking.
Figure 29
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
C
D
C D
10 in. 10 in.
(267 mm) (267 mm)
10 in. 12 in.
(267 mm) (305 mm)
10 in. 17 in.
(267 mm) (451 mm)
J. Install the storm collar - Install the storm
collar, supplied with the flashing, over the vent/
flashing joint. See Figure 30. Loosen the storm
collar screw. Slide collar down until it meets the
top of the flashing. Tighten the adjusting screw.
Apply non-combustible caulking or mastic
around the circumference of the joint to provide
a water tight seal.
Figure 30
K. Install the vertical termination - The final step
involves installation of the SV4.5CGV-1 Vertical
Termination. Extend the vent sections to the
height as shown in the "Vertical vent termination
section" on page 4. The SV4.5CGV-1 Vertical
Termination (Figure 31) can be installed in the
exact same fashion as any other Secure Vent
section. Align the termination over the end of the
previously installed section, adjusting the radial
alignment until the four locking dimples of the
termination are aligned with the inlets of the four
incline channels of the last vent section. Push the
termination down until it fully engages, then twist
the termination clockwise running the dimples
down and along the incline channels until they are
seated at the end of the channels.
Figure 31
If the vent system extends more than 5' (1.5 m)
above the roof flashing, stabilizers may be nec-
essary. Additional screws may be used at sec-
tion joints for added stability. Guide wires may
be attached to the joint for additional support on
multiple joint configurations.
Storm
Collar
13