Napoleon Fireplaces NPI45 - Manuel (Page 18)

W415-0702 / B / 04.04.12
18
4.0 VENTING
4.1 TYPE OF VENT
4.2 INSTALLING THE PELLET VENT
4.3 VENTING THE PELLET APPLIANCE
Must be an approved 3" or 4" diameter Type "L" or "PL" vent, vented to the outside or connect the vent to a
factory built type "A" chimney using an adaptor; and/or stainless steel chimney liner for masonry appliance in-
stallations. Use 4" diameter vent if vent or liner height is over 15' or if installation is over 4,000' above sea level.
Use an approved wall thimble when passing the vent through walls and a ceiling support / fi restop spacer when
passing the vent through ceilings (maintain a 3" clearance to any combustibles).
7.5C
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
installations.
MAXIMUM VENTING: Maximum venting height is 33’.
Maximum horizontal without vertical rise is 5’ straight
off the back of the appliance. Use no more than 180° of
elbows (two 90° elbows, or two 45° elbows and one 90°
elbow, etc), excluding the tee and the termination.
VENT INSTALLATION: Termination must exhaust above
the air inlet elevation, 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 entering the home during the appliance shut down
or in the event of a power outage. Horizontal sections
must have a 1/4” rise every 12” of travel if longer than 3’.
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 recommend sealing the outside
of the vent connections to permit easier access when
servicing.
5’
10’
15’
20’
33’
30’
25’
0’
5’ 10’ 0’
Use 4” diameter
“L” vent if
venting in this
shaded region.
Use 3” or 4”
diameter “L”
vent if venting
in this shaded
region.
!
WARNING
PELLET VENT MUST MAINTAIN A MINIMUM 3" CLEARANCE TO ANY COMBUSTIBLE (INSTALL VENT
AT CLEARANCES SPECIFIED BY THE VENT MANUFACTURER, CHIMNEY LINER EXCLUDED).
DO NOT CONNECT THE PELLET VENT TO A VENT OR CHIMNEY SERVING ANY OTHER APPLIANCE
OR HEATER.
DO NOT INSTALL A FLUE DAMPER IN THE EXHAUST VENTING SYSTEM OF THIS UNIT.