
MUA-SVX003B-EN 7
General Safety Requirements
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1. Open all disconnect switches before installing the unit. Failure to do so may result
in personal in ury or death from electrical shock.
2. Failure to comply with the general requirements may result in extensive property
damage, severe personal in ury or death.
3. This product must be installed by a licensed plumber or gas fitter when installed
within the Commonwealth of Massachusetts.
4. Do not alter the duct furnace in any way or damage to the unit, severe personal
in ury or death will occur.
5. Never service any component without first disconnecting all electrical and gas
supplies to the unit or severe personal in ury or death may occur.
6. Insure that all power sources conform to the unit requirements or damage to the
unit may result.
• The use or storage of gasoline or other flammable vapors or liquids in open containers in the
vicinity of this appliance is hazardous
• If you smell gas:
–Do not touch electrical switches
–Extinguish any open flames
–Immediately call your gas supplier
• For all units that are equipped with gas fired outdoor duct furnaces (certified by ETL)
installation must be made in accordance with local codes, or in the absence of local codes,
with the latest edition of ANSI Standard Z223 1 (N F P A No 54) National Fuel Gas Code All
of the ANSI and NFPA Standards referred to in these installation instructions are those that
were applicable at the time the design was certified The ANSI Standards are available from
the American National Standards Institute, Inc , 11 West 42nd Street, New York, NY, 10036 or
www ansi org The NFPA Standards are available from the National Fire Protection
Association, Batterymarch Park, Quincy, MA 02269
• If installed in Canada, the installation must conform with local building codes, or in the
absence of local building codes, with CSA B149 1 “Installation Codes for Natural Gas Burning
Appliances and Equipment” or CSA B149 2 “Installation Codes for Propane Gas Burning
Appliances and Equipment” These outdoor duct furnaces have been designed for and
certified to comply with CSA 2 8
• These units have been designed certified for outdoor use only, and may be located on the
roof of the building or at any convenient location external to the building to be heated
• Make certain that the power sources conform to the requirements of the heater
• Follow installation instructions CAREFULLY to avoid creating unsafe conditions All wiring
should be done and checked by a qualified electrician, using copper wire only All gas