Installation Clearances - Noritz ecoTOUGH NRC98-DV-NG Installation Manual

6.

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. In Canada, see NSCNGPIC for detailed requirements.
Item
• Maintain the following clearances
from both combustible and
non-combustible materials.
• If possible, leave 8" (200mm) or more on
either side of the unit to facilitate inspection.
• If possible, leave 24" (600mm) or more in
front of the unit to facilitate maintenance
and service if necessary.
• If possible, leave 3" (75mm) or more
above and below the vent pipe to facilitate
inspection and repair if necessary
<When the indoor air supply>
• If the unit will be installed in the vicinity of
a permanent kitchen range or stove that
has the possibility of generating steam
that contains fats or oils, use a dividing
plate or other measure to ensure that the
unit is not exposed to air containing such
impurities.
* The dividing plate should be of noncom-
bust-ible material of a width greater than
the water heater.
WARNING
Check Illustration
2" (50mm)
or more
Distance from
the side
8" (200mm)
or more
8" (200mm)
or more
24" (600mm)
or more
Exhaust hood
Dividing plate
Range
12" (300mm)
or more
4" (100mm)
or more
3" (75mm) or more
3" (75mm) or more
Water
heater
7