DuraVent PolyPro - Manual (Page 7)

INSTALLATION
1. Pipe lengths may be cut to length
(Fig.6). Use an alternate clamp (Fig.4-
PPS-PAC / PPS-LBC) for the connection
if a locking button (Fig.3) is removed.
•
Cut square (not at an angle) to the
end of the pipe.
•
Remove burrs before assembly.
Figure 6
MARK
CUT WITH
HACKSAW
DEBURR
7
Figure 7
12"
5/8"
MIN
1/4" - 5/8"
(7.5mm - 15mm)
TO APPLIANCE
2. Check with appliance manufacturer for
any restrictions or limits on vent length,
number of elbows, etc.
3. The slope of the vent pipe must be at
least 3° (5/8" per ft, 50mm per meter)
back to the appliance. (Fig.7)
4. Every horizontal section must be
supported. (Fig.8)
5. The venting system shall be securely
supported using suitable hangers.
Duravent hardware is recommended; field
supplied support hardware suitable to
the AHJ is acceptable, hardware must not
deform or damage the vent. (Fig. 7 and 8)
Make sure the load of the vent system is not
supported by the appliance.
•
On Duravent and other certain clamp
styles, ¼” or greater All-thread may be
used as an extension.
6. Vertical installations must be supported
every 10 feet (3 meters) or less. (Fig.8)
7. Do not install / enclose PolyPro in the stud
space of a wall.
8. Elbows and Tees are sufficiently supported
when a bracket is fixed at the female end of
the connected straight section. (Fig.8)
PP Pipe sections must be disengaged 1/4"-
5/8" per joint (to allow for expansion) and
sloped 3°(5/8"per ft) back to the appliance
per Fig.7 for proper condensate flow.
IMPORTANT
Figure 8
ALL-THREAD
WALL STRAP
(MINIMUM 1PER
HORIZONTAL PIPE
SECTION)
LOCKING BANDS
REQUIRED AT EVERY
EXHAUST JOINT
MAX
10FT
(3m)
9. Vertical components can be insulated in
unconditioned space or when ran outside.
10. Use black UV protected components on
venting installed on the exterior.
ENCLOSURE REQUIREMENTS
Through Rooms: Interior vents shall be
enclosed where they extend through closets,
storage areas, occupied spaces, or anyplace
where the surface of the vent could be
contacted by persons or combustible materials
except when installed in the room with the
appliance.