Venturi Adjustment - Napoleon LV50N2 Installation And Operating Instructions Manual

10.3

VENTURI ADJUSTMENT

This appliance is equipped with an externally adjustable air shutter that is not preset from factory. Any
adjustments made to the shutter must be done with the burner and all media installed into the appliance.
It is important to operate the appliance and verify that the air shutter is opened to the correct amount
to prevent either fl ame lifting or carbonizing. To open or close the shutter, pull the rod away from the
appliance or push the rod towards the appliance respectively.
Small adjustments on the shutter can have a drastic effect on the fl ame appearance; it is recommended to
adjust the shutter in 1/8" increments.
• NG, close primary air fully, then open 1/8" for main burner and 1/16" for secondary burner.
• LP, close primary air fully, then open 1/4" for main burner and 3/16" for secondary burner
MAIN
BURNER
WARNING: AIR SHUTTER ADJUSTMENT
MUST BE DONE BY A QUALIFIED INSTALLER.
Regardless of air shutter location closing the air shutter will cause a more yellow fl ame, but can lead to
carbonizing. Opening the air shutter will cause a more blue fl ame, but can cause fl ame lifting from the
burner ports. The fl ame may not appear yellow immediately, allow 15 to 30 minutes for the fl ame colour to
be established.
AIR SHUTTER
ADJUSTMENT
SECONDARY
BURNER
OPEN
57
EN
CLOSE
W415-1624 / D / 11.22.16