Hearth and Home Technologies 4055-187 owner manual Place the Rockwool, Place the Lava Rock

G. Place the Rockwool

WARNING! Risk of Explosion! Follow rockwool place- ment instructions. DO NOT place rockwool directly over burner ports. Replace rockwool material annually. Improp- erly placed rockwool interferes with proper burner opera- tion.

•Rockwool is shipped with this gas appliance.

•Place a small amount of 1/2 in. diameter pieces (dime- size) rockwool on the burner pan so that the rockwool touches, but does not cover, the holes in the burner pan (refer to Figure 15.4). This will provide the “glowing embers” look.

•It is not necessary to use the entire bag. Save the remaining rockwool for future use.

H. Place the Lava Rock

See Figure 15.5.

Rockwool

Lava Rock &

Vermiculite

Figure 15.5 Placement of Rockwool, Lava Rock and Vermiculite

I. Place the Vermiculite

Sprinkle on top of lava rock.

J. Replacing Fixed Glass Assembly

•Set the glass panel on the lower two or four glass assembly latches, ensuring the glass panel is centered in the opening.

•Replace glass latches. See Figure 15.4.

K. Air Shutter Setting

Air shutter setting should be adjusted by a qualified in- staller at the time of installation.

•The air shutter is set at the factory for minimum vertical vent run.

•Adjust air shutter for longer vertical runs. See Figure 15.6.

•Turn the thumbscrew to open and close.

Close Open

Figure 15.6 Adjusting Air Shutter

56 Heatilator • Novus NDV Series • 4055-187 Rev. V • 1/12