Venting; Type Of Vent; Installing Pellet Vent - Napoleon Auburn NPS40 Installation And Operating Instruction

PELLET VENT MUST MAINTAIN A MINIMUM 3"
CLEARANCE TO ANY COMBUSTIBLE (install vent
at clearances specifi ed by the vent manufacturer).
DO NOT CONNECT THE PELLET VENT TO A
VENT SERVING ANY OTHER APPLIANCE OR
HEATER.
DO NOT INSTALL A FLUE DAMPER IN THE EX-
HAUST VENTING SYSTEM OF THIS UNIT.

TYPE OF VENT

Must be an approved 3" or 4" Diameter Type "L" vent,
vented to the outside or connect the vent to a factory
built type "A" chimney using an adaptor; and/or stain-
less steel chimney liner for masonry fi replace instal-
lations. Use 4" diameter vent if vent or liner height
is over 15' or if installation is over 4,000' above sea
level.
INSTALLING THE PELLET VENT
The vent must have a support bracket every 5' when
on the exterior wall.
To achieve optimum performance, keep vent runs as
short as possible, especially on horizontal installa-
tions.
MAXIMUM VENTING:
Maximum venting height is 33'. Maximum horizontal
offset is 10'. Use no more than 180' of elbows (two
90' elbows, or two 45' elbows and one 90' elbow,
etc), plus termination.
VENT INSTALLATION:
Termination must exhaust above the air inlet eleva-
tion, and parallel or above the exhaust output of the
pellet appliance. It is recommended that at least 3' of
vertical pipe be installed to create some natural draft.
This is to help prevent the possibility of smoke or
odour during the appliance shut down.
Horizontal sections must have a 1/4" rise every 12" of
travel after 3' long.
The pellet vent connections must be sealed with
HI-Temp RTV Silicone and screwed together with at
least 3 3/8" long stainless steel screws. Seal each
vent section by injecting a liberal amount of 500°F
(260°C) RTV silicone sealant into the gap. We rec-
ommend sealing the outside of the vent connections
to permit easier access when servicing.

VENTING

Figure 6
VENTING THE PELLET HEATER
Use an approved wall thimble when passing the vent
through walls and a ceiling support/fi re stop spacer
when passing the vent through ceilings (maintain a 3"
clearance to any combustibles).
PELLET VENT TERMINATION
The vent termination must have an approved cap (to
prevent water from entering) or a 45° downturn.
If the termination is located on a windy side of the
house, an approved house shield is recommended
to prevent soot from building up on the side of the
house.
Horizontal terminations must protrude 12" from the
wall, vertical terminations require 24".
Depending on pellet quality, vent confi guration and
air settings, black soot may occur on the terminal
wall.
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W415-0587