28
ADJUSTMENTS
PILOT BURNER ADJUSTMENT
Adjust the pilot screw to provide properly sized fl ame. Turn in a clockwise direction to reduce the gas fl ow.
FIGURE 62
FIGURE 63
! WARNING
This is a fast acting ther- mocouple. It is an inte- gral safety component. Replace only with a fast acting thermocouple sup- plied by Wolf Steel Ltd.
RESTRICTING VERTICAL VENTS
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,
1. Open the glass viewing door. | FIGURE |
SCREWS |
|
2. Remove the three screws for mounting the restrictor plate located in the top of the fi rebox.
VENTURI ADJUSTMENT
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 fl ame, but can lead to carboning. Opening the air shutter will cause a more blue fl ame, but can cause fl ame lifting from the burner ports. The flame may not appear yellow immediately; allow 15 to 30 minutes for the fi nal fl ame colour to be established.
FIGURE 64
AIR SHUTTER ADJUSTMENT MUST ONLY BE DONE BY A QUALIFIED GAS INSTALLER!
FLAME CHARACTERISTICS
It is important to periodically perform a visual check of the pilot and burner fl ames. Compare them to the illustrations provided.
VENT
RESTRICTOR
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.