Heatilator • Novus NDV Series • 4055-187 Rev J • 08/09
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G. Place the Rockwool
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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.
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I. Place the Vermiculite
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Rockwool
Lava Rock &
Vermiculite
Figure 15.5 Placement of Rockwool, Lava Rock and Vermiculite
H. Place the Lava Rock
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J. Replacing Fixed Glass Assembly
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K. Air Shutter Setting
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Figure 15.6 Adjusting Air Shutter