possible to anchor a floor-mounted chair carrier to the floor slab.
3.16.5.1
Concrete or Solid Masonry Construction
Chair carrier shall be anchored to the floor slab. Where a floor-anchored
chair carrier cannot be used, a suitable wall plate shall be imbedded in
the masonry wall.
3.16.5.2
Cellular-Masonry Wall Construction
Chair carrier shall be anchored to floor slab. Where a floor-anchored
chair carrier cannot be used, a suitable wall plate shall be fastened to
the cellular wall using through bolts and a back-up plate.
3.16.5.3
Steel Stud Frame Partitions
Chair carriers shall be used. The anchor feet and tubular uprights shall
be of the heavy duty design. Feet (bases) shall be steel and welded to a
square or rectangular steel tube upright. Wall plates, in lieu of
floor-anchored chair carriers, may be used only if adjoining steel
partition studs are suitably reinforced to support a wall plate bolted to
these studs.
3.16.5.4
Wood Stud Construction
Where entire construction is wood, wood crosspieces shall be installed.
Fixture hanger plates, supports, brackets, or mounting lugs shall be
fastened with not less than No. 10 wood screws, 6 mm 1/4 inch thick minimum
steel hangar, or toggle bolts with nut. The wood crosspieces shall extend
the full width of the fixture and shall be securely supported.
3.16.5.5
Wall-Mounted Water Closet Gaskets
When wall-mounted water closets are provided, reinforced wax, treated felt,
or neoprene gaskets shall be provided. The type of gasket furnished shall
be as recommended by the chair carrier manufacturer.
3.16.6
Backflow Prevention Devices
Plumbing fixtures, equipment, and pipe connections shall not cross connect
or interconnect between a potable water supply and any source of nonpotable
water. Backflow preventers shall be installed where indicated and in
accordance with ICC IPC at all other locations necessary to preclude a
cross-connect or interconnect between a potable water supply and any
nonpotable substance. In addition backflow preventers shall be installed
at all locations where the potable water outlet is below the flood level of
the equipment, or where the potable water outlet will be located below the
level of the nonpotable substance. Backflow preventers shall be located so
that no part of the device will be submerged. Backflow preventers shall be
of sufficient size to allow unrestricted flow of water to the equipment,
and preclude the backflow of any nonpotable substance into the potable
water system. Bypass piping shall not be provided around backflow
preventers. Access shall be provided for maintenance and testing. Each
device shall be a standard commercial unit.
3.16.7
Access Panels
Access panels shall be provided for concealed valves and controls or any
item requiring inspection or maintenance. Access panels shall be of
SECTION 15405A
Page 97
Previous Page
