Plumbing, heating, electrical, ventilating, air-conditioning,
refrigerating, cooking, fire-protection and radiation-production equipment,
elevators, dumbwaiters, escalators and other mechanical additions, installations
or systems for the use of the building shall be installed, located and maintained
so that under normal conditions of use such equipment and systems will not
be a danger to health or welfare, a danger because of structural defects or
a source of ignition or a radiation hazard and will not create excessive noise
or otherwise become a nuisance. Equipment and systems include, but are not
limited to, apparatus, devices, fixtures, piping, pipe hangers, pipe covering,
wiring, fittings and materials used as part of or in connection with such
installations.