Emerson Liebert CRV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 C R 0 2 0 R A 1 C 7 S D 1 8 1 1 E L 1 0 P A - Manual (Page 45)

Electrical Connections
37 Liebert ® CRV ™
8.0 E
LECTRICAL
C
ONNECTIONS
8.1 Electrical connections
Figure 26 Remove electrical panel and lower front panel
!
WARNING
Arc flash and electric shock hazard. Can cause injury and death.
Disconnect local and remote power supplies and wear appropriate personal protective
equipment per NFPA 70E before working within.
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 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.
!
WARNING
Risk of electric shock. Can cause injury or death.
This unit has a high leakage current potential. Proper earth ground connection per national
and local codes is required before connection to the electric power supply.
Remove these bolts
to access low voltage
electrical panel
Remove these bolts
to access high voltage
electrical panel
Remove these bolts to open
lower front baffle panel