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Adjustments – Napoleon Fireplaces GDIZC-P User Manual

Page 11

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11

W415-0223 / D / 01.12.04

Remove the pilot screw cap. Adjust the pilot screw to pro-
vide properly sized flame. Turn in a clockwise direction to
reduce the gas flow. Replace the pilot screw cap.

FIGURE 27

Air shutter adjustment
must only be done by a
qualified gas installer!

FIGURE 30

This unit is approved for use with a 2" liner for air intake
and a 3" liner for exhaust. For best performance, however,
it is recommended to use two 3" liners.
Air shutter settings will differ depending on the liner sys-
tem used. Use the charts below to determine the correct
air shutter setting:

Some vent configurations may display a very active flame. If
this appearance is not desirable, the vent exit may be re-
stricted using the restrictor plate shown in FIGURE 6b. Bend
the flap up as shown to reduce the velocity of the exhaust
gases, slowing down the flame pattern and creating a more
traditional appearance.

FIGURE 29

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 estab-
lished.

FIGURE 28

ADJUSTMENTS

PILOT BURNER ADJUSTMENT

VENTURI ADJUSTMENT

VENT RESTRICTION

HELPFUL HINT:
A mirror will let you see the opening of
the air shutter without removing the
burner. Scribe a line along the venturi
tube and air shutter cap. Open or close
according to the original opening by
using the scribed line as your datum.

3"/ 3" LINER SYSTEM

NG

1/16"

LP

3/16"

AIR SHUTTER SETTING

2"/ 3" LINER SYSTEM

NG

1/8"

LP

5/16"

AIR SHUTTER SETTING

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