ECR International Dunkirk DMG-380 Installation, Operation & Maintenance Manual page 24

every push-fit gasket connection when using a polypropylene
vent. Follow vent manufacturer instructions or, if unavailable,
below when installing a mechanical fasterner:
• Take dual flue mechanical fasterner with larger hole in it
and place it onto male end of pipe.
• Slide clamp all the way down the pipe with smaller opening
of clamp towards female end of the pipe.
• Bend clamp over the female end of pipe "A" and slide male
end of pipe "B" through clamp and into female end of pipe
"A".
Mechanical fastener is necessary for dual fuel
Note
pipe. Dual flue mechanical fasterner is for indoor
use only and should not be used in outdoor
applications.
6 - COMBUSTION AIR AND VENT PIPING
FIGURE 6-5 - Mechanical Fasterner for Dual Fuel Pipe
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PN 240011664, Rev. F [07/30/2018]