Datasheet

Liebert
®
MPX
™
Installation and Assembly
11
3.0 LIEBERT
®
MPX
™
INSTALLATION AND ASSEMBLY
All configuration steps must be completed before attempting to startup equipment connected to the
Liebert MPX.
3.1 Installation in a Knurr
®
Miracel Rack
Emerson recommends installing the MPX PRC
™
(Power Rail Chassis) in the rack, then attaching the
Liebert MPX modules to it.
Before beginning, consider how cables will be routed in the rack. Placing the MPX PEM
™
(Power
Entry Module) at the end of the MPX PRC
™
that is nearest the entry point for its input power cable
can ease cable routing and help separate control and power cables to reduce electromagnetic
interference.
A Liebert MPX can be installed in a Knurr
®
Miracel
™
rack on either the upright or horizontal frame
member with the included hardware. The unit can be installed on the face of the frame member or on
the side of the frame member.
Installation requires inserting two spring nuts into the Liebert MPX, screwing Liebert MPX
mounting screws into the spring nuts and attaching two brackets to the Knurr Miracel frame
members. The Liebert MPX hangs on the brackets and is supported by the Liebert MPX mounting
screws.
3.1.1 Mounting Hardware Included
• Z-shaped brackets: 2
• L-shaped bracket: 2
• Spring-nuts, M5: 6
• Screws, M5x10: 6
• Liebert MPX mounting screws, 2
3.1.2 Tools Required—Field-Supplied
• Slotted screwdriver
• 4mm Allen wrench
!
WARNING
Risk of connecting two MPX PEMs to one MPX PRC. Can cause equipment damage, injury or
death.
Connect only one MPX PEM
™
(Power Entry Module) to an MPX PRC (Power Rail Chassis).
Connecting more than one MPX PEM could cause cross-conduction. A cross-conduction can
cause upstream overcurrent protective devices (OCPD) trip or the resulting short circuit
current may exceed the OCPD A.I.C. ratings.