BURNER FLAME ADJUSTMENT

Burner Removal

OPERATING GUIDELINES AND MAINTENANCE INSTRUCTIONS

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BURNER FLAME ADJUSTMENT

The air shutter, located at the underside of the main burner (see Figure 48), has been factory preset to the proper air-to-gas ratio which results in an even, clean burning flame across the burner (see Figure 49). If readjustment is necessary, you can restore the proper air-to-gas ratio by loosening the air shutter screw and rotating the air shutter until the proper flame setting is achieved (the shutter's normal setting is “full opened”. Do not forget to retighten the air shutter screws.

Air Shutter

Orifice

Burner

Venturi Tube

Firebox Bottom

Burner Gas Line

 

Figure 48 - Connecting Venturi and Orifice

CORRECT

Long, Blue Flame with Yellow Tips

INCORRECT

CLOSE SHUTTER

Short, Sharp, Blowing Flame

INCORRECT

OPEN SHUTTER

Long, Uneven, Yellow Flame

Figure 49 - Burner Flame Patterns

BURNER REMOVAL

CAUTION: Before proceeding, make sure the entire unit is cool.

1.Remove the top and bottom louvers and screen. Open the glass door (left or right side).

2.Carefully remove the log set.

3.Remove the screw that attaches the burner to the bracket.

4.Slide the burner towards the front of the unit, lift, and remove from the firebox.

5.To reinstall the burner, slide the burner towards the rear of the unit and secure burner to bracket with screw.

CAUTION: Make certain the orifice is inside the venturi tube's air shutter, see Figure 48.

6.Replace the log set, close door with latches, and attach screen and louvers.

OPERATING GUIDELINES AND MAINTENANCE INSTRUCTIONS

When lit for the first time, the appliance may emit a slight odor for about 16 - 24 hours. This is normal and is due to the “curing” of the logs and the “burn-in” of internal paints and lubricants used in the manufacturing process. Keep compartments, logs, burners, and area surrounding the logs clean by vacuuming or brushing at least twice a year. Temporary removal of the log set may ease the cleaning of the burner and pilot assembly. In cleaning, take care not to alter the pilot or burner location. Be sure appliance is cool before each maintenance session.

CAUTION: The appliance and logs can get very hot - Handle only when cool.

WARNING: Turn off gas and wall switch before servicing appliance. Any safety screen or guard re- moved for servicing the appliance must be replaced prior to operating the appliance.

WARNING: Make certain wires and gas lines are not touching the underside of the firebox.

WARNING: Children and adults should be alerted to the hazards of high surface temperatures, and to stay away from the appliance to avoid burns or cloth- ing ignition. Young children should be carefully super- vised when they are in the same room as the appliance.

WARNING: Have a qualified agency periodically inspect the vent system at the start of each heating season, for any obstruction which may hinder its normal operation. Never obstruct the flow of com- bustion and ventilation air. Keep the front of the appliance clear of all obstacles and materials.

CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.

For further operating guidelines, contact your authorized dealer.

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105706-01B

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Desa VDVF36STN/STP, VDVF36PN/PP Burner Flame Adjustment, Operating Guidelines and Maintenance Instructions, Burner Removal