Venturi Adjustment; Fl Ame Characteristics - Napoleon B46NTRE Installation And Operation Manual

adjustment
EN
12.2

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.
VENTURI ADJUSTMENT CHART
FUEL TOP
NG 1/8" (3.2mm)
P 3/16" (4.8mm)
12.3 fl ame 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.
58
W415-2370 / C / 03.19.20
REAR
3/8" (9.5mm)
VENTURI
BURNER
ORIFICE
3/8" - 1/2"
(9.5mm - 12.7mm)
Flame must envelop
upper
3/8" to 1/2"
(12.7mm - 9.5mm) of
thermocouple &
thermopile
MILLIVOLT
ILLUSTRATED
AIR
SHUTTER
OPENING