Vermont Casting DV580 Burner Lava Rock Placement, Large Lava Rock, Flame & Temperature Adjustment

DV360/580 Series Direct Vent Gas Fireplace

Burner Lava Rock Placement

Place burner lava rock on the burner in front of the front logs. Do not place burner lava rock in the inside corners of the front logs.

Large Lava Rock

The large lava rock provided with this fireplace must be placed on the firebox base around the sides of the burner assembly and on the tray beneath the grate.

Under no circumstances should this large lava rock be placed on any part of the burner assembly.

Flame & Temperature Adjustment

For fireplaces equipped with Hi/Lo valves, flame adjust- ment is accomplished by rotating the Hi/Lo adjustment knob located near the center of the gas control. (Fig. 56 or 57)

Turn
counterclockwise	LO	HI	Turn clockwise
to decrease			to increase
flame height			flame height
Fig. 56 Flame adjustment knob for Honeywell valve.
Turn		IH	Turn clockwise
counterclockwise
to increase			to decrease
flame height		LO	flame height

Fig. 57 Flame adjustment knob for SIT valve.

Flame Characteristics

It is important to periodically perform a visual check of the pilot and the burner flames. Compare them to the illustrations below (Figs. 58, 59). If any of the flames appear abnormal call a service person.

3/8” - 1/2”		PSE Pilot
(10 - 13 mm)
F584-703	SIT Pilot
Fig. 58	Correct pilot flame appearance.

Inspecting the Venting System

This appliance venting system is designed and con- structed to develop a positive flow adequate to remove flue gases to the outside atmosphere.

Any foreign objects in the venting system, except those designed specifically for the venting system, may cause spillage of flue gases.

To inspect the venting system, make sure the main gas valve is off. Remove window frame assembly (Refer to Window Frame Assembly Removal Section). Using a flashlight, check the area above the baffle in the com- bustion dome. Clean if necessary.

28 20010667