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6.4 Definitions
1.
Figure 6-2
Coaxial piping –
pipe have a common axis.
2.
Figure 6-3
Twin Pipe –
separate pipes, can be terminated using single wall
terminals from the vent manufacturer or field built
configuration using elbows or tees.
6 - COMBUSTION AIR AND VENT PIPING
exhaust and air intake
Exhaust and intake air are
6.5 Securing Twin Pipe Polypropylene Venting
Venting manufacturer's use a device to secure
Note
single wall twin pipe polypropylene vent pieces
to each other. Proper application of the securing
mechanism is necessary for any use of twin pipe
polypropylene venting on exhaust or air intake.
Securing mechanism is for indoor use only and
should not be used in outdoor applications.
Follow venting manufacturer's instructions for
applying the securing mechanism on twin pipe
polypropylene venting
Example for Fixed Natalini venting system.
(For other venting system suppliers see their instructions.)
1.
Place clamp so etched "UP" is facing up.
2.
Open clamp slightly by separating circular areas from each
other.
3.
Slide male end of first pipe through open clamp so the
shoulder of the female end of the pipe stops the clamp
from sliding off the pipe.
4.
Insert the male end of the second pipe into the clamp on
the "up" etched side. Force the two pipes together.
5.
Verify the two pipes are secure together with clamp in
place.
FIGURE 6-4 - (NATALINI) CLAMP EXAMPLE
UP
29
.
PN 240012363 REV. A [08/31/2018]
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