Vermont Casting 20DVT Large Lava Rock, Flame & Temperature Adjustment, Flame Characteristics

Models: 20DVT

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Large Lava Rock

Large Lava Rock

The large bag of 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 centre of the gas control. (Fig. 33 or 34)

Honeywell Valve

 

Turn

 

 

 

counterclockwise

LO

HI

Turn clockwise

to decrease

 

to increase

 

 

flame height

 

 

flame height

 

 

 

 

Fig. 33 Flame adjustment knob for Honeywell valve.

Turn

SIT 820 Valve

 

 

Turn clockwise

counterclockwise

H

 

I

 

to increase

L

to decrease

O

flame height

flame height

 

 

 

Fig. 34 Flame adjustment knob for SIT valve.

Brookhaven Direct Vent Gas Fireplace

Flame Characteristics

It is important to periodically perform a visual check of the pilot and the burner flames. Compare them to Fig- ures 35 & 36. If any of the flames appear abnormal call a service person.

3/8” - 1/2”

PSE Pilot

 

(10 - 13 mm)

 

SIT Pilot

F584-703

Fig. 35 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.

Yellow Flame

Red Glow

LG473

Fig. 36 Correct burner flame appearance for the 20DVT.

10009459

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Vermont Casting 20DVT Large Lava Rock, Flame & Temperature Adjustment, Flame Characteristics, counterclockwise, 10009459