1 Important Safety Information
SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed during operation and maintenance of the Vertiv™
CoolChip CDU 600.
WARNING! Arc flash and electric shock hazard. Can cause serious injury or death. Building and equipment
damage may also result. Disconnect all local and remote electric power supplies and wear appropriate, OSHA-
approved personal protective equipment (PPE) per NFPA 70E before working within the electric control
enclosure. Customer must provide earth ground to unit, per NEC, CEC and local codes, as applicable.
Verify with a voltmeter that power is Off. The controller does not isolate power from the unit, even in the
“Unit Off” mode. Some internal components still require and receive power even during the Unit Off mode of
the controller. The factory-supplied, optional disconnect switch is inside the unit. The line side of this switch
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.
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. Follow all local codes.
WARNING! Risk of electric shock. Can cause serious injury or death. Building and equipment damage may also
result. Open all local and remote electric power supply disconnect switches and verify that power is off with a
voltmeter before working within any electric connection enclosures. The controller 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 controller. The controller 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 model of the controller.
Installation, service, and maintenance work must be performed only by properly trained and qualified
personnel and in accordance with applicable regulations and manufacturers’ specifications. Opening or
removing the covers to any equipment may expose personnel to lethal voltages within the unit even when it
is apparently not operating and the input wiring is disconnected from the electrical source.
WARNING! Risk of short circuits and electric shock. Can cause serious injury or death. Building and
equipment damage can result from cut insulation or damaged wires. Can cause overheated wiring, smoke,
fire, activation of fire suppression systems and EMS personnel, and loss of power to fans. Verify that all
wiring connections are tight and that all wiring is contained within the junction box prior to closing and
securing the cover.
Insert CSA-certified or UL-listed bushings into holes and/or knockouts used to route wiring through metal
panels to protect the wire insulation from contact with sheet metal edges.
1 Important Safety Information Proprietary and Confidential ©2025 Vertiv Group Corp. 1
Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide
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