Napoleon B42NTR Ascent 42

User Manual - Page 23

For B42NTR. Also, The document are for others Napoleon models: B42NTRE, B42PTR, B42PTRE

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B42NTR photo
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EN
W415-2367 / B / 12.09.20
23
venting requirements
2.12 top exit
A. Remove the safety barrier and glass front (see "safety
barrier / door removal and installation" section).
B. Remove the contents from the firebox and set aside. You
will need the exhaust collar from the top of the log carton.
C. To ease assembly, remove the four hex head screws
securing the deflector from inside the top front of the firebox.
D. Remove the single screw from the outer cover on the
back of the appliance.
E. Remove the four screws on the 7" (178mm) intake collar
assembly; set the intake collar and gasket aside. Ensure
not to damage gasket.
F. Remove the single screw from the outer cover (with
knockout intact) on the top of the appliance and set aside.
G. Remove the inner cover plate and gasket by removing the
four screws. Reinstall the inner cover plate and gasket
onto the back of the appliance.
H. Take the outer cover (with knockout intact) and secure
onto the back of the appliance.
I. Remove and discard the 1 1/2" thick batt of insulation
from the top opening.
J. Place the 7" (178mm) intake collar and
gasket onto the top of the appliance
and secure with the four screws.
K. Reinstall the outer cover (without
knock out) over the 7" (178mm)
exhaust collar assembly and secure.
L. From inside the firebox, install the 4"
(102mm) exhaust collar up through the top
of the firebox and secure with the the four hex
head 3/8" thread cutting screws.
M. Reattach the top deflector, log set, glass door,
and safety barrier.
EXHAUST FLUE COLLAR
FLUE PIPE
WITH GASKET
INTAKE COLLAR
ASSEMBLY
GASKET
OUTER COVER
TO TOP VENT
FLUE PIPE
WITH GASKET
INNER
COVERPLATE
GASKET
F
I
G
D
E
E
OUTER
COVER
PLATE
(without
knockout)
FLUE PIPE
WITH GASKET
INTAKE COLLAR
ASSEMBLY
GASKET
OUTER COVER
TO TOP VENT
FLUE PIPE
WITH GASKET
INNER
COVERPLATE
GASKET
F
I
G
D
E
E
OUTER
COVER
PLATE
(without
knockout)
DEFLECTOR
DÉFLECTEUR
This appliance is factory shipped as a rear vent model equipped with a #44 burner orifice. This orifice
size is suitable for rear vent installations with 0" vertical rise only. For top exit applications, the main
burner orifice should be changed to the #43 burner orifice (supplied) for natural gas. For propane
models, the appliance is converted to a #55 burner orifice for rear vent applications or a #54 burner
orifice for top vent applications.
Failure to install the cover plate and gasket will cause the appliance to function improperly and can cause injury
or property damage.
!
WARNING
Do not overtighten. The gasket needs only to be
snug against the firebox.
note:
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