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5.
Installation Clearances
Before installing, check for the following:
Install in accordance with relevant building and mechanical codes, as well as any local, state or national
regulations, or in the absence of local and state codes, to the National Fuel Gas Code ANSI Z223.1/
NFPA 54 – latest edition.
Item
• Maintain the following clearance from both combustible
and non-combustible materials.
• When installing the unit in a common side corridor, provide
a clearance of 47" (1,190mm) or more in front of the unit.
• Set the bottom edge of the exhaust port about
84" (2,130mm) from the corridor floor.
• When installing the unit on a balcony, etc., secure an
evacuation route of 24" (600mm) or more in width.
• Provide clearance of 24" (600mm) or more in front of
the unit to facilitate inspection and repair. Do install the
unit in a location where the unit is out of reach, such as
the wall of the second floor.
▲The illustration is an example. Please check with the actual water heater about the position of piping, and form.
WARNING
Check
Illustration
24" (600mm)
or more
36" (900mm)
or more
6" (150mm)
or more
47" (1,190mm) or more
about 84"
(2,130mm)
Handrail
common side
corridor
24" (600mm)
or more
Handrail
balcony, etc.
5
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