GE Industrial Solutions GE ZENITH SERIES MDU - Manual (Page 8)

Installation Procedures
GE Z ENITH C ONTROLS
MDU Owner’s Manual
601 S HILOH R OAD January 2013
Plano, TX 75074 Page 8
3.1.2. Raised Floor
If the MDU is placed on a raised floor, it is recommended that the casters rest as close as
possible to the corners of the floor tiles. This will allow the unit to span (1) one complete
floor tile, permitting cutouts in the tile.
3.1.3. Cabling
The unit location may be specified on a floor plan which shows related equipment as well
as identifying distribution cable runs. These cable runs should be recorded on panel board
legend cards. Each legend card specifies the circuit location on the panel board and the
computer or peripheral description.
3.1.4. Cabinet Leveling
Once the MDU has been positioned in its permanent location, turn down the (2) two front
and the (2) two rear (optional) leveling pads on the base of the MDU until they make firm
contact with the floor or landing surface. Level the unit and assure that the leveling pads
are always in contact with the floor or landing surface. The primary purpose of the leveling
pads is to prevent movement of the cabinet before and during attachment of the output
cables. Casters, if provided with the MDU, will support the weight of the unit.
3.1.5. Raised floor loading
Additional floor bracing is recommended for all units. The weight of larger units should be
considered in the room design. The raised floor system must be able to support both the
MDU as well as any other associated equipment. GE recommends that the end user
properly compute raised floor loading and supply proper floor bracing when needed.
Floor stands can also be provided by GE to support the MDU’s weight on the raised floor.
Note: GE does not recommend the removal of Casters for MDU sizes up to 300kVA.
Floor stands are designed to support your MDU with casters in place. Placing
the MDU on the floor or stand without casters may damage the MDU cabinet
which may void your warranty.
For typical floor weights of the MDU, please refer to Figure 1 on the previous page, or your
submittal package.
3.1.6. Raised floor cable entry
When applicable, provisions must be made for cable entry through the raised floor once
the MDU has been properly located. The cable entry configuration should be free of any
sharp edges and designed to allow permanent access for the distribution cables and input
power cables. The tile directly in front of the unit should be easily removable for access to
these cables.