John Wood Noritz Concentric Vent - NR98-DVC (N-0751M) - Manual (Page 12)

12
• Do not common vent or connect more than
one appliance to this venting system.
• Terminate at least 300mm (12")above grade or
snow line.
• Terminate at least 2.1m (7') above a public
walkway.
• Use a condensation drain if necessary.
• Maintain the same vent pipe diameter all the
way to the end.
• Noritz Concentric vent pipe is approved for use
on this appliance with zero clearance to com-
bustibles.
Horizontal Vent Termination
• Terminate at least 300mm (12") above
grade or above snow line.
• Terminate at least 2.1m (7') above a pub-
lic walkway, 1.8m (6') from the combus-
tion air intake of any appliance, and 0.9m
(3') from any other building opening, gas
utility meter, service regulator etc.
• Terminate at least 0.9m (3') above any
forced air inlet within 3m (10'), 0.3m (1')
below, 0.3m (1') horizontally from or
0.3m (1') above any door, window, or
gravity air inlet into any building per National
Fuel Gas Code ANSI Z223.1/NFPA 54.
• Slope the horizontal vent 1/4" downwards for
every 300mm (12") towards the termination.
• Install a condensate drain directly on the
water heater flue if the vertical run
exceeds 0.9m (3').
• In the Commonwealth of Massachusetts
a carbon monoxide detector is required
for all side wall horizontally vented gas
fuel equipment. Please refer to Technical
Bulletin TB 010606 for full installation in-
structions.
Elbow
Hanger
Straps
Flange
Adapter
Plate
Termination
*0.9m (3') Max.
Slope vent
Downwards
* Install a condensate
drain if the vertical run
exceeds 0.9m (3').
Condensation
Drain (Install
According to
Local Codes)*
• Use only Noritz specified venting products.
• Connect the vent pipe firmly so that it will prevent
exhaust gases from leaking.
• Steam or condensed water may drip out of the
vent terminal. Dispose of this condensed water
according to local codes and in order to prevent
injury or property damage.
• If this product will be installed in an area where
snow is known to accumulate,protect the vent
termination from blockage by snow drifts or dam-
age from snow falling off of roofs.
• Support the vent pipe with hangers at a minimum
of every 2.1m (7').
• Make the vertical pipe as short as possible.
• Exceeding the maximum vent length is danger-
ous and may result in bad combustion.
• Install the vent terminal so that all exhaust is di-
rected to and all intake air is taken from outdoors.
• In the Commonwealth of Massachusetts a car-
bon monoxide detector is required for all side
wall horizontally vented gas fuel equipment.
Please refer to Technical Bulletin TB 010606 for
full installation instructions.
• Do not store hazardous or flammable sub-
stances near the vent terminal.
• Slope the vent pipe downwards 1/4" for every
300mm (12") towards the termination if a con-
densate drain is not being used.