Enviro S50 - Venting Notes and Multi-story Installations

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NOTES:
(1)
If an oset is necessary in the attic to avoid
obstructions, it is important to support the vent pipe
every 3 feet (914 mm), to avoid excessive stress
on the elbows, and possible separation. Wall straps
are available for this purpose (see Figure 57).
(2) When ever possible, use 45° degree elbows instead
of 90° degree elbows. The 45° degree elbow oers
less restriction to the ow of ue gases and intake
air.
(3)
For multi story installations; a ceiling restop is
required at the second oor, and any subsequent
oors (see Figure 58). The opening should be
framed to 10” (254 mm) x 10” (254 mm) inside
dimensions, in the same manner as shown in Figure
46.
(4) Any occupied areas above the rst oor, including
45° elbows (x2)
Wall strap
Plumber’s tape
connected to
wal strap
closets and storage spaces, which the
vertical vent passes through, must be
enclosed. The enclosure may be framed
and sheet-rocked with standard building
materials. However consult the appliance
manufactures installation instructions
for the minimum allowable clearance
between the outside of the vent pipe, and
the combustible surfaces of the enclosure.
Do not ll any required air spaces with
insulation.
Figure 57: Use of Wall Straps.
Figure 58: Multi-Story Vent Pipe Installation.
Initial Installation
QUALIFIED INSTALLERS ONLY