Operation; Adjustments; Pilot Burner Adjustment; Venturi Adjustment - Napoleon Roxbury Série Manuel D'installation Et D'opération

There is a thermally activated switch, attached to the back of the appliance and extending up into the dilution draft
hood, which senses the change in temperature and shuts down the gas valve in the event of a severe downdraft of
air or a blocked or disconnected vent.
It acts as a safety shut-off to prevent a build up of carbon monoxide or an explosion of unburnt gases during start
up. If the fl ue is blocked or has no "draw", the spill switch will automatically shut off the supply of gas within about
5-10 minutes.
TAMPERING WITH THE SWITCH CAN RESULT IN CARBON MONOXIDE (CO) POISONING AND POSSIBLE
DEATH. A CHECK FOR CORRECT VENTING ACTION MUST BE MADE BEFORE THE INSTALLED INSERT
IS LEFT WITH THE CUSTOMER.
Test after installing the appliance into a vented non-combustible fi replace in the following manner:
1. Close all doors and windows in the room; start exhaust fans in the home; turn the appliance blower off.
2. Set controls to "high" and light the appliance.
3. Wait 5 minutes. Light a match and hold it to the spill tube opening.
4. Venting action is satisfactory if smoke is drawn into the spill tube. Venting action is unsatisfactory if the fl ame
and smoke are not drawn into the tube.
5. If venting action is unsatisfactory, turn the appliance off, wait 10 minutes and try again. If the smoke or fl ame is
still not drawn into the spill tube, turn the appliance off and check for vent blockage or restriction. If necessary,
consult with a qualifi ed air quality specialist.

5.0 adjustments

5.1

pilot burner adjustment

1. Remove the pilot adjustment cap.
2. Adjust the pilot screw to provide properly sized fl ame.
3. Replace the adjustment cap.
5.2

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 GI3600
NG 1/16 (2mm)
P 3/8 (10mm)
PILOT SCREW
THERMOPILE
PILOT BURNER
VENTURI
BURNER
ORIFICE

operation

ELECTRODE
AIR
SHUTTER
OPENING
W415-2341 / A / 11.14.19
EN
15