Save These Instructions - Emerson Liebert CRV User Manual

I S
MPORTANT AFETY

SAVE THESE INSTRUCTIONS

This manual contains important safety instructions that should be followed during the installation
and maintenance of the Liebert CRV. Read this manual thoroughly before attempting to carry out
any operations on the Liebert CRV, including installation and operation. Retain this manual for the
entire service life of the Liebert CRV.
Only properly trained and qualified personnel should move, install or service this equipment.
Adhere to all warnings, cautions and installation, operating and safety instructions on the unit and in
this manual. Follow all operating and user instructions.
Any operation that requires opening doors or equipment panels must be carried out only by properly
trained and qualified personnel.
Each machine is equipped with an electric insulation device that allows the operator to work safely.
Switch Off the machine with this electric insulation device before beginning any maintenance
operation to eliminate remaining risks (electric shocks, burns, automatic restarting, moving parts
and remote control).
To identify the unit by model and serial number in order to obtain assistance or spare parts, locate
the identification label on the outside of the unit.
A warning label on the front and back panels reminds users that:
• the Liebert CRV restarts automatically
• the main switch must be opened before opening the internal compartments for any operation.
WARNING
!
Arc flash and electric shock hazard. Can cause injury and death.
Open all local and remote electric power supplies, verify with a voltmeter that power is Off
and wear appropriate personal protective equipment per NFPA 70E before working within
the electric control enclosures.
Before proceeding with installation, read all instructions, verify that all the parts are included
and check the nameplate to be sure the voltage matches available utility power.
The Liebert iCOM
mode.
Some internal components require and receive power even during the Unit Off mode of the
Liebert iCOM control.
The factory-supplied optional disconnect switch is inside the unit. The line side of this switch
contains live hazardous voltage potential.
Install and open a remote disconnect switch and verify with a voltmeter that live hazardous
voltage potential is not present inside the unit cabinet before working within. Refer to the
unit electrical schematic.
Follow all national and local codes.
I
NSTRUCTIONS
microprocessor does not isolate power from the unit, even in the Unit Off
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1
Important Safety Instructions
®
Liebert CRV
™