Venturi Adjustment; Flame Characteristics - Napoleon HD35NT-2 Manuel D'installation Et D'utilisation

adjustment
EN
11.3

venturi adjustment

This appliance has an air shutter that has been factory set open according to
the chart below:
Regardless of venturi orientation, closing the air shutter will cause a more
yellow flame, but can lead to carbonization. Opening the air shutter will cause
a more blue flame, but can cause flame lifting from the burner ports. The flame
may not appear yellow immediately; allow 15 to 30 minutes for the final flame
colour to be established.
AIR SHUTTER ADJUSTMENT MUST ONLY BE DONE BY A QUALIFIED
INSTALLER.
note:
It is important that the orifice is securely inserted into the venturi.
To access the air shutter, remove the control access panel, remove the glass door assembly and carefully remove the
log set. Remove the four screws attached to the burner pan. Slide the burner pan to the left roughly 1" (25mm) then lift
up.
Air shutters have been factory set open according to the Venturi Adjustment Chart. These settings are for (maximum)
horizontal termination. Adjustment may be required depending on fuel type, vent configuration and altitude.
VENTURI ADJUSTMENT CHART
FUEL HD35-2
NG
3/8"
P
(10mm)
11.2

flame characteristics

It's important to periodically perform a visual check of
the pilot and burner flames. Compare them to the
illustration provided. If any flames appear abnormal,
call a service person.
HD35-2 / HD40-2
50
W415-2197 / C / 10.14.20
HD40-2 HD46-2
1/8" (3mm)
7/16" 3/8"
(11mm) (10mm)
VENTURI
BURNER
ORIFICE
33.1
DEXEN EI 2-WAY PILOT
(9.5mm - 12.7mm)
Flame must envelop
upper
3/8" to 1/2"
(12.7mm - 9.5mm) of
Flame sensor
DEXEN EI
ADD IMAGE
HERE
36.1
ODS - MILLIVOLT
HD46-2
PSE THERMOCOUPLE
3/8" - 1/2"
(9.5mm - 12.7mm)
Flame must envelop
upper
3/8" to 1/2"
(12.7mm - 9.5mm) of
AIR
SHUTTER
OPENING
3/8" - 1/2"