Listing And Code Approvals; Appliance Certifi Cation; Btu Specifi Cations; High Altitude Installations - Heat & Glo CERONA-42 Owner's Manual

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Listing and Code Approvals

A. Appliance Certifi cation
MODELS: CERONA-36, CERONA-42
LABORATORY: Underwriters Laboratories, Inc. (UL)
TYPE: Direct Vent Gas Appliance Heater
STANDARD: ANSI Z21.88b-2005 • CSA2.33b-M2005 • UL307B
This product is listed to ANSI standards for "Vented Gas
Appliance Heaters" and applicable sections of "Gas Burn-
ing Heating Appliances for Manufactured Homes and
Recreational Vehicles", and "Gas Fired Appliances for
Use at High Altitudes".
NOT INTENDED FOR USE AS A PRIMARY HEAT SOURCE.
This appliance is tested and approved as either supplemen-
tal room heat or as a decorative appliance. It should not be
factored as primary heat in residential heating calculations.
Note: This installation must conform with local codes. In the
absence of local codes you must comply with the National
Fuel Gas Code, ANSI Z223.1-latest edition in the U.S.A. and
the CAN/CGA B149 Installation Codes in Canada.
This model may be installed in a bedroom or bed-sitting
room in the U.S.A. and Canada.
B. BTU Specifi cations
Model
(U.S. or Canada)
US
(0-2000 FT)
Cerona-36 (NG)
CAN
(2000-4500 FT)
US
(0-2000 FT)
Cerona-42 (NG)
CAN
(2000-4500 FT)
4
Orifi ce
Maximum Minimum
Size
Input BTU/h Input BTU/h
(DMS)
37,500 25,000 32
33,750 22,300 33
48,000 32,000 29
40,500 28,800 30
Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. H • 11/08
C. High Altitude Installations
U.L. Listed gas appliances are tested and approved with-
out requiring changes for elevations from 0 to 2000 feet in
the U.S.A. and Canada.
When installing this appliance at an elevation above 2000
feet, it may be necessary to decrease the input rating
by changing the existing burner orifi ce to a smaller size.
Input rate should be reduced by 4% for each 1000 feet
above a 2000 foot elevation in the U.S.A., or 10% for el-
evations between 2000 and 4500 feet in Canada. If the
heating value of the gas has been reduced, these rules
do not apply. To identify the proper orifi ce size, check with
the local gas utility.
If installing this appliance at an elevation above 4500 feet
(in Canada), check with local authorities.
WARNING
Do NOT use this appliance if any part has been under water.
Immediately call a qualifi ed service technician to inspect the
appliance and to replace any part of the control system and
any gas control which has been under water.
D. 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,
Standard Test Method for Behavior of Materials in a
Vertical Tube Furnace at 750ºC, shall be considered
non-combustible materials.
E. 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 whether
plastered or unplastered shall be considered combustible
materials.
F. 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.