Vertiv Liebert MBSM - Page 5

Vertiv
™
| Liebert
®
MBSM
™
User Manual | 1
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed during transport,
installation, operation and maintenance of your Liebert MBSM or (Multiple Bus Synchronization
Module). Read this manual thoroughly, paying special attention to the sections that apply to your
installation, before working with the UPS system. Retain this manual for use by installing
personnel.
The Liebert MBSM with phase control (10B14545G1) has been designed for operation with N+N
UPS systems consisting of modules of either the Liebert EXL
™
S1 or the Liebert NX
™
225-600kVA
UPS. This document is not valid for any application with different UPS models.
Read and follow all warnings, cautions and notices in this document and comply with all national
and local codes and practices.
WARNING
Risk of electrical shock. Can cause personal injury and death.
Special safety precautions are required for procedures involving handling, installation and
maintenance of the Liebert MBSM. Only properly trained and qualified personnel wearing
appropriate personal protective equipment should be involved in installing, operating or
maintaining the Liebert MBSM or preparing the system for installation.
Be constantly aware that the Liebert MBSM contains high voltages. Check for voltage with
AC and DC voltmeters before making contact.
Observe all safety precautions before working on or near the Liebert MBSM or the UPS
system.
WARNING
Risk of electric shock. Can cause personal injury and death.
In case of fire involving electrical equipment, use only carbon dioxide fire extinguishers or
those approved for use in fighting electrical fires.
WARNING
Risk of heavy unit falling over. Can cause equipment damage, injury and death.
Exercise extreme care when handling the Liebert MBSM to avoid equipment damage or
injury to personnel. The Liebert MBSM weighs 150 lb. (66kg).
Locate center of gravity symbols and consider the unit weight before handling the
Liebert MBSM. Test lift and balance the unit before transporting it. Maintain minimum tilt
from vertical at all times.
WARNING
Risk of electric shock. Can cause property damage, injury and death.
Hazardous voltages exist in the Liebert MBSM. The front panel must not be removed while
the UPS system is energized. If, for any reason, it is necessary to remove this panel, the entire
system must be switched Off and de-energized. Check for voltage with AC and DC
voltmeters to verify that the system is de-energized before working within.