User's Manual

Important Safety Instructions
1Liebert
®
DCP
™
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important safety instructions that should be followed during the installation
and maintenance of the Liebert DCP. Read this manual thoroughly before attempting to install or
operate this unit.
Only qualified personnel should move, install or service this equipment.
Adhere to all warnings, cautions, notices and installation, operating and safety instructions on the
unit and in this manual. Follow all operating and user instructions.
Follow all local codes.
!
WARNING
Risk of arc flash and electric shock. Can cause property damage, injury or death.
Open all local and remote electric power supply disconnect switches, verify with a voltmeter
that power is off and wear protective equipment per NFPA 70E before working within electric
control enclosure. Failure to comply can cause serious injury or death.
Customer must provide earth ground to unit, per NEC, CEC and local codes, as applicable.
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
®
microprocessor does not isolate power from the unit, even in the Unit Off
mode. Some internal components require and receive power even during the Unit Off mode of
Liebert iCOM.
The line side of the disconnect switch on the front of the unit contains live high-voltage.
The only way to ensure that there is NO voltage inside the unit is to install and open a remote
disconnect switch. Refer to unit electrical schematic.
Follow all local codes.
!
WARNING
Risk of unit falling over. Can cause property damage, injury or death.
The Liebert DCP is top-heavy. Use extreme caution and care when moving and installing this
unit.Verify that all equipment used for lifting and moving is rated for the weight of the unit.
See Table 5 for unit weights.
!
CAUTION
Risk of sharp edges, splinters and exposed fasteners. Can cause injury.
Only properly trained and qualified personnel wearing appropriate safety headgear, gloves,
shoes and glasses should attempt to move, lift, remove packaging from or prepare the unit for
installation.
NOTE
This document is intended to be used together with site specific documentation and
documentation for other parts of the system (heat rejection devices and cooling modules).
NOTE
Inform the facility manager before beginning any action that could cause a disturbance in the
Liebert DCW
™
system’s cooling function. In addition, inform the facility manager after the
action is taken and the work is finished.