John Wood Noritz N-069M-DV - Manual (Page 70)

70
Vent terminal installation precautions
Note the following vent terminal installation
requirements.
1) Do not install the vent terminal indoors
2) Install the vent terminal with a downward slope
3) Install with the proper length protruding through the wall
4) Avoid installing the terminal where obstacles will block it
• This restriction will not be applied to an area
where an effective shield makes a clearance of
24" or more in front of the exhaust outlet.
Above
There must be a
clearance of 24" or
more in front of the
vent terminal.
Vent terminal
3.
Installation Requirements Caution
sloping
up sloping
down
The red line is
not visible.
Distance A
24" or more
12" or more
If the front wall is
flammable.
If the front wall is
nonflammable.
Vent terminal Vent terminal
12" or more
12" or more
12" or more
Vent terminal
12" or more
Sides
Below
Vent terminal
12" or more
Vent terminal
A
Front
Vent terminal Vent terminal
12" or more
12" or more
12" or more 12" or more
12" or more
There must be no
building opening
within this area.
Flue terminal
Vent Terminal Clearance Requirements
Clearances from obstacles Clearances from combustibles
Clearances from combustibles
not far
enough
too far
The red rectangle
is visible.
Proper installation. The
red line is visible, but the
red rectangle in not
visible from the outdoors
Snow
drift Tree
Gasoline
Gas
Clearance between two terminals
Vent
terminal
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