Napoleon GX42NTRE Manuel D'installation page 46

11.0 adjustments
adjustments
EN
11.1 restricting vertical vents
Vertical installations may display a very active fl ame. If this appearance is not desirable, the vent exit must be
restricted using a restrictor vent kit. Refer to the "replacement parts" section of the owner's manual for the
appropriate kit. This will reduce the velocity of the exhaust gases, slowing down the fl ame pattern and creating a
more traditional gentle fl ame appearance. Specifi c instructions are included with the kit.
11.2 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.
46
W415-1794 / 06.28.18
All manuals and user guides at all-guides.com
VENTURI ADJUSTMENT
CHART
NG 1/4" (6.3mm)
P 1/2" (12.7mm)
16.6A
VENTURI
BURNER
AIR
SHUTTER
OPENING
ORIFICE
33.1