John Wood Noritz N-069M_N-069S - Manual (Page 45)

45
8.
Vent Pipe Installation
• The first vertical run from the top of the heater
should be no longer than 3'.
• Make sure vent pipe is gas tight and will not
leak. Use silicon sealant wherever necessary.
• Do not common vent or connect more than
one appliance to this venting system.
• The total vent length including horizontal &
vertical vent runs should be no less than 3'.
• Do not place any dangerous objects at the end
of the exhaust vent.
• Steam (smoke) or water drops may come out
from the end of the exhaust pipe. Select the
location for the end of the vent so that steam is
not visible, and the vent is not wet with drip-
ping water.
• If snow is expected to accumulate, take care
the end of the pipe is not covered with snow or
hit by falling lumps of snow.
• Consult the vent pipe manufacturer's install-
ation instructions for chimney connections.
Appliance Adapters
• Use the following adapters to connect the
unit to the venting system.
Vent Piping
• Use only listed category III vent materials.
• Follow the vent pipe manufacturer's installation
instructions.
• Make the vertical section of the exhaust vent
as short as possible.
• Maintain the same vent pipe diameter from the
heater flue to the vent termination.
Pipe diameter 4"
No. of Elbows Max. Straight Vent Length
3 15'
2 27'
1 39'
Clearances
Manufacturer and Enclosed Unenclosed
Product Hor. Vert. Hor. Vert.
Noritz N-Vent 4" 3" 3"
Protech FasNSeal 4" 3" 3"
Protech FasNSeal W2 6" 4" 3" 3"
HeatFab SafTVent 6" 6" 2" 2"
Z-Flex Z-Vent 8" 4" 1" 1"
Flex-L StaR-34 8" 4" 1" 1"
These clearances are subject to change.
Refer to the UL listing for the proper clearances.
Horizontal Vent Termination
• Terminate at least 12" above
grade or above snow line.
• Terminate at least 7' above a
public walkway, 6' from the
combustion air intake of any
appliance, and 3' from any
other building opening, gas
utility meter, service regulator
etc.
• Terminate at least 3' above any
forced air inlet within 10', 4'
below, 4' horizontally from or
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 12".
• Use a condensation drain if
necessary.
Appliance
Adapter
Elbow
Hanger
Straps
Wall
Thimble
Termination
3'
Max.
Slope vent
Downwards
(Indoor Installation Only)
8" (sides)
12"(top)
4"(bottom)
Manufacturer and
Product
Protech FasNSeal FSAA4
HeatFab SafTVent 9401RYPK
Z-Flex Z-Vent 2SVWA04
Flex-L Star-34 SRASPSA4
Part No.
10" (sides)
15"(top)
6"(bottom)