Btu Specifi Cations; High Altitude Installations; Non-Combustible Materials Specifi Cation; Combustible Materials Specifi Cation - Heatilator NBV3630I Owner's Manual

C. BTU Specifi cations
Novus NBV
Max/Min Input Rate (NG) 20,000/14,000 22,000/15,000
Orifi ce Size (NG)
Max/Min Input Rate (LP) 20,000/15,000 22,000/15,000
Orifi ce Size (LP)
Novus NBV
Max/Min Input Rate (NG) 25,000/17,000 30,000/20,500
Orifi ce Size (NG)
Max/Min Input Rate (LP) 25,000/17,000 30,000/20,500
Orifi ce Size (LP)
D. High Altitude Installations
NOTICE: If the heating value of the gas has been reduced,
these rules do not apply. Check with your local gas utility or
authorities having jurisdiction.
When installing above 2000 feet elevation:
• In the USA: Reduce input rate 4% for each 1000 feet
above 2000 feet.
• In CANADA: Reduce input rate 10% for elevations
between 2000 feet and 4500 feet. Above 4500 feet,
consult local gas utility.
Check with your local gas utility to determine proper
orifi ce size.
NBV3630 NBV3933
IPI
0.083 0.089 (#43)
0.053 0.055 (#54)
NBV4236 NBV4842
IPI
0.093 (#42) 0.104 (#37)
0.058 0.063 (#52)
Heatilator • Novus B-Vent Series • 4055-188 • Rev G • 03/09
E. Non-Combustible Materials Specifi cation
Material which will not ignite and burn. Such materials are
those consisting entirely of steel, iron, brick, tile, concrete,
slate, glass or plasters, or any combination thereof.
Materials that are reported as passing ASTM E 136, Stan-
dard Test Method for Behavior of Materials in a Vertical
Tube Furnace at 750 ºC and UL763 shall be considered
non-combustible materials.
F. Combustible Materials Specifi cation
Materials made of or surfaced with wood, compressed
paper, plant fi bers, plastics, or other material that can ig-
nite and burn, whether fl ame proofed or not, or plastered
or unplastered shall be considered combustible materials.
G. Electrical Codes
NOTICE: This appliance must be electrically wired
and grounded in accordance with local codes or, in the
absence of local codes, with National Electric Code
ANSI/NFPA 70-latest edition or the Canadian Electric
Code CSA C22.1.
• A 110-120 VAC circuit for this product must be protected
with ground-fault circuit-interrupter protection, in
compliance with the applicable electrical codes, when
it is installed in locations such as in bathrooms or near
sinks.
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