Napoleon Fireplaces BGD40-N - Manual (Page 28)

28
W415-0299 / F / 01.16.07
Adjust the pilot screw to provide properly sized flame. Turn
in a clockwise direction to reduce the gas flow.
Natural gas models have air shutters set at 1/4 (.250") inch
open. Propane gas models have air shutters set at 7/16
(.437) inch open. Closing the air shutter will cause a more
yellow flame, but can lead to carboning. 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.
FIGURE 66
FIGURE 64
FIGURE 65
AIR SHUTTER ADJUSTMENT MUST ONLY BE DONE BY A
QUALIFIED GAS INSTALLER!
WARNING: This is a fast act-
ing thermocouple. It is an in-
tegral safety component.
Replace only with a fast act-
ing thermocouple supplied
by Wolf Steel Ltd.
Vertical installations may display a very active flame. If this
appearance is not desirable, the vent exit must be restricted
using the optional restrictor vent kit, RP40-KT. This will
reduce the velocity of the exhaust gases, slowing down the
flame pattern and creating a more traditional gentle ap-
pearance.
ADJUSTMENTS
PILOT BURNER ADJUSTMENT
VENTURI ADJUSTMENT
RESTRICTING VERTICAL VENTS
1. Open the glass viewing door.
2. Remove the three screws for mounting the restrictor
plate located in the top of the firebox.
SCREWS
3. Line up the holes on vent restrictor plate with the three
holes from which the screws were removed.
4. Secure the vent restrictor plate into position using the
three screws removed in step 2.
5. Replace the viewing door.
VENT
RESTRICTOR