TOA Electronics SSDVT-4035CNM User Manual
Page 24
 
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
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D. Install Firestop / Spacers at ceilings and walls 
- When Secure Flex penetrates a wall or ceiling, 
a fi restop / spacer is required: use the SF4.5 VF 
fi restop / spacer for ceilings and the SF4.5 HF 
fi restop / spacer for walls. See the appropriate 
sections and Figures shown throughout the vent-
ing section for their installation requirements. 
Note: Outer Pipe Is Pulled Away To Show 
The Detail of The Inner Pipe
APPLY ONLY MIL-PAC BLACK 
HIGH TEMPERATURE SEALANT 
(Cat. No. 10K81) to the outside 
surface of both collars of the 
adapter (be especially careful to 
fi ll the grooves of the outer collar 
to be covered by the fl exible pipe) 
and slide fl exible pipe over inner 
and outer adapter collars.
1-3/4 inch (44 mm) Flexible 
Pipe and Adapter Outer Collar 
Overlap
Adapter (SV4.5RF)
Attach Adapter to Appliance
Collar, or Secure Vent Sections
Flex Vent
Gear Clamps
Securing Screw 
- 3 Places, 120° apart 
(equally spaced) Just 
Below Gear Clamp
1 3/4 in. (44 mm) Flexible 
Pipe and Adapter Inner Collar 
Overlap
Securing Screw - 3 Places 
Equidistant (equally spaced) 
Just Below Gear Clamp)
Figure 41
VERTICAL OR HORIZONTAL VENTING USING
SECURE FLEX
KITS AND COMPONENTS
Secure Flex venting kits and components 
may be used in any venting application in 
place of rigid Secure Vent (SV4.5) direct vent 
components. All restrictions, clearances and 
allowances that pertain to the rigid piping apply 
to the fl exible venting. Secure Flex kits may 
not be modifi ed; also, under no circumstances 
may separate sections of fl ex pipe be joined 
together. 
Using adapter (SV4.5RF), Secure Flex kits 
may be added to the end of a vent run made 
up of rigid Secure Vent (SV4.5) vent sections 
provided that doing so does not violate any of 
the venting length, height, routing, horizontal 
to vertical ratio requirements or clearance 
considerations detailed in this manual.
Secure Flex kits come with an adapter that 
can be fi tted to the inclined channel end of the 
last Secure Vent (SV4.5) vent section in a rigid 
system in the exact same fashion as any other 
Secure Vent section.
Align the dimpled end of the adapter over 
the previously installed section or appliance 
collar, adjusting the radial alignment until the 
four locking dimples of the adapter are aligned 
with the inlets of the four incline channels of 
the last vent section or collar. Push on the 
adapter until it fully engages, then twist the 
adapter clockwise running the dimples down 
and along the incline channels until they seat 
at the end of the channels.
Attach the fl exible vent to the adapter as fol-
lows (see also Figure 41):
A. Install the Inner Flex Pipe - 
1. Install the small gear clamp loosely around
the inner fl exible vent pipe, push it back out 
of the way.
2. Apply a bead of Mill-Pac Black (700° F) high
temperature sealant - Catalog No. 10K81 
to the inner adapter collar, approximately 
1/2
inch from the end.
3. Pull and extend the inner fl exible vent pipe. 
4. Slide the inner fl ex pipe over the adapter col-
lar. Ensure the fl exible vent pipe completely 
engages the adapter collar to a distance of 1 
3/4
inches from the end, and that it is free
from damage or tears.
5. Slide the gear clamp down and tighten it
fully to secure the fl exible vent to the adapter 
inner collar approximately 3/4 inch from the 
end of the fl ex.
6. Install three screws 120 degrees apart through
the fl exible vent pipe and into the adapter collar 
just below the gear clamp to provide additional 
security to the connection.
B. Install the Outer Flex Pipe -
1. Install the large gear clamp loosely around
the outer fl exible vent pipe, push it back out 
of the way. 
2. Apply a bead of Mill-Pac Black (700° F) high
temperature sealant - Catalog No. 10K81) 
to the outer adapter collar; to the grooves 
of the collar which extend approximately 1 
inch from the end and to the fl at surface, 
approximately 1 3/8 inches from the end. 
3. Pull and extend outer fl exible vent pipe. 
4. Slide the outer fl ex pipe over the adapter col-
lar. Ensure the fl exible vent pipe completely 
engages the adapter collar to a distance of 
1
³⁄₄ inches from the end, and that it is free
from damage or tears.
5. Slide the gear clamp down and tighten it
fully to secure the fl exible vent to the adapter 
outer collar approximately 3/4 inch from the 
end of the fl ex.
6. Install three screws 120 degrees apart
through the fl exible vent pipe and into the 
adapter collar just below the gear clamp to 
provide additional security to the connec-
tion.
C. Route Flex Vent -
Ensure that the fl ex vent is properly routed to 
provide the required clearance. Do not allow the 
fl exible vent to bend in a radius tighter than 5" 
(127 mm). Refer to Figure 42. Space out the 
internal fl ex vent spacers evenly - approximately 
every 6 inches - and avoid kinking of inner pipe. 
Support horizontal sections of fl ex with metal 
straps at 2 foot (0.61 m) intervals. 
E. Attach Flex Vent to Termination - 
Secure Flex components can be purchased 
separately and attached to bulk lengths of Se-
cure Flex fl exible tubing cut to size at the job 
site. Secure the fl exible vent to the Secure Flex 
terminations in the same manner (see Figure 
41) as it was attached to the adapter.
Note: Secure Flex vent must be attached to Se-
cure Flex terminations only. DO NOT substitute 
Secure Vent terminations or the Secure Vent 
adapter for Secure Flex components. The collars 
of Secure Flex terminations and adapters have a 
different diameter than that used with the Secure 
Vent pipe. Additionally, Secure Flex components 
have an extended length center tube for use in 
attaching the fl exible vent.
Flexible Vent 
Section
5” (127 mm)
Radius
Minimum
Figure 42