APC MX28B-2400, MX28B-1200 manual Room/Locations, Mounting

MX28B-1200 PRODUCT MANUAL Revision B

5.1.5 Room/Locations

NOTE: The APC Model MX28B dc power plant is to be installed in a room, vault, or similar enclosure that is accessible only to qualified persons in accordance with the NEC or the authority having jurisdiction.

Prior to installation, drawings, floor loading requirements, external alarm points, ac service entrance, and grounding schemes should all be checked and confirmed. If batteries are to be mounted in a room separate from the power plant, careful attention should be paid to battery cable voltage drop effects. Environmental operating temperatures and ventilation/cooling considerations should also be noted, not just for the power system but for all other equipment that may reside in the power room area.

5.1.6 Mounting

The box frame housing the MX28B components is self-supporting, but designed to be bolted to the floor of the housing structure. Figure 5-1 shows the footprint of the box frame and the mounting points with dimensions (shown in inches). Consult the system design specifications to see if it is necessary to electrically isolate the frame from the floor structure. This is required in many installations.

FRONT

23.00

1.50

11.50 11.50

Figure 5-1 Floor Mounting Dimensions

Systems with multiple box frames are mounted with each frame touching, side by side. The side cover panels where two frames touch are removed so that bus work and control cables can pass between the frames. Three holes are provided in center vertical rail of each side to allow the frames to be mechanically secured to each other if desired.

14 MX28B-1200/2400