Evolution Series E9000 User Manual
10
Installation of Flooring
For most installations, the MCC floor sills can rest on the
finished floor. The foundation for the equipment should
be level and even. Although not normally required, the
purchaser may elect to install, level and grout the steel
members or MCC floor sills in the floor, as illustrated in
Figure 8 and Figure 9. If the floor sills are removed, lifting
and moving the shipping sections must be done carefully.
Figure 7C. Low bus position of ground and neutral bus (minimum
available space for conduit entry) in 13-inch deep section, 6-inch cover
Figure 7D. Upper position of ground and neutral bus (maximum
space available for conduit entry), 6-inch bottom cover
Figure 8. Control center floor sills grouted to the floor before
installation to provide a level foundation
Note: Cannot be rolled (as in Figure 5) without floor sills
Figure 9. Installing steel floor members
Note the front alignment of the 13-inch-deep section
Surface under motor control center base must
be of non-combustible material unless bottom
covers are installed in each vertical section.
The overall height of the equipment should be considered
with respect to headroom, top conduit entry space and
alignment with other equipment.
Note:
• If anchor bolts are to be imbedded in the foundation,
they must be located according to the drawing furnished
by GE for the specific equipment. Locate one in the
center front and one in the center back. Anchor bolts
should be 1/2" in diameter, of Grade 2 steel (minimum)
in non-seismic locations. Bolts must extend a minimum
of 2 11/32" above grade to 3/4" above the channel
sill. If 13" (330.2mm) deep sections are used, anchor
bolts or some form of external bracing is required.
• Seismic Zone 4/IBC testing was performed using 1/2" –
13 Grade 5 bolts, torqued to 70 foot-pounds, located in
each of the four corners in each section.
If there are vertical sections of varying depths
(such as 13, 20, or 22 inches) in a single lineup,
the fronts of the sections must be lined up for
proper alignment of the main bus bars.
Figure 9 illustrates this point..
