4
IM 861
Safety Information
Use only with type of gas approved for this unit. Refer to the
unit rating plate.
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WARNING
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Install this unit only in a location and position as specified in
the location requirements and considerations section of
these instructions. Provide adequate combustion and
ventilation air to the unit space as specified in the venting
section of these instructions.
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WARNING
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Provide adequate combustion and ventilation air to the unit
space as specified in the combustion and ventilation air
section of these instructions.
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WARNING
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Combustion products must be discharged outdoors.
Connect this unit to an approved vent system only, as
specified in Vent Pipe Installation section of these
instructions.
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WARNING
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Never test for gas leaks with an open flame. Use a
commercially available soap solution made specifically for
the detection of leaks to check all connections, as specified
in Gas Supply and Piping section of these instructions.
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WARNING
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Always install unit to operate within the unit's intended
temperature-rise range with a duct system which has an
external static pressure within the allowable range, as
specified in ducting section of these instructions. See also
unit rating plate.
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WARNING
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When a unit is installed so that supply ducts carry air
circulated by the unit to areas outside the space containing
the unit, the return air shall also be handled by duct(s)
sealed to the unit casing and terminating outside the space
containing the unit.
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WARNING
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This unit may be used to heat the building or structure
during construction if the following installation requirements
are met. Installation must comply with all installation
instructions including:
• Proper vent installation;
• Furnace operating under thermostatic control;
• Return air duct sealed to the furnace;
• Air filters in place;
• Set furnace input rate and temperature rise per rating
plate marking;
• Means of providing outdoor air required for combustion;
• Return air temperature maintained between 55°F (13°C)
and 80°F (27°C); and
• Installation of exhaust and combustion air inlet hoods
completed;
• Clean furnace, duct work and components upon
substantial completion of the construction process, and
verify furnace operating conditions including ignition, input
rate, temperature rise and venting, according to the
instructions.
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WARNING
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