John Wood Noritz N-069M_N-069S - Manual (Page 46)

46
Vertical Vent Termination
Appliance
Adapter
Firestop
Firestop/
Support
Roof
Flashing
Rain
Cap
Hanger
Strap
Elbow
Condensation
Drain (Install
According to
Local Codes)
3'
Max.
• Terminate at least 6' from the
combustion air intake of any
appliance, and 3' from any
other building opening, gas
utility meter, service regulator
etc.
• Enclose exterior vent systems
below the roof line to limit
condensation and protect
against mechanical failure.
• When the vent penetrates a
floor or ceiling and is not
running in a fire rated shaft, a
firestop and support is required.
• Terminate the vent system at
least 3' above, but not more
than 6' above the roof line, or
according to the vent pipe
manufacturer's instructions.
• Provide vertical support every
12' or as required by the vent
pipe manufacturer's instructions.
• Slope the horizontal vent 1/4"
downwards for every 12".
• Do not vent straight upwards.
Always have a horizontal section
of venting.
• Install a condensation drain in
the horizontal section of the
venting.