User manual

Important Safety Instructions
1Liebert
®
InteleCool
™
2
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important safety instructions that should be followed during the installation
and maintenance of the Liebert InteleCool2. 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 and installation, operating and safety instructions on the unit and in this manual. Follow all
operating and user instructions.
!
WARNING
Arc flash and electric shock hazard. Open all local and remote electric power disconnect
switches, verify that power is Off with a voltmeter and wear appropriate personal protective
equipment per NFPA 70E before working within the electrical control enclosure. Failure to
comply can cause 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 microprocessor control 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
control.
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.
Follow all national, state and local codes.
!
WARNING
Risk of explosive discharge from high-pressure refrigerant. Can cause injury or death.
This unit contains fluids and gases under high pressure. Relieve pressure before working with
piping.
!
WARNING
Risk of refrigerant system rupture or explosion. Can cause equipment damage, injury or
death.
Do not install a shutoff valve between the compressor and the field-installed pressure relief
valve.
For systems requiring EU CE compliance (50Hz), the system installer must provide and
install a discharge pressure relief valve rated for a maximum of 650psig (45bar) in the high
side refrigerant circuit. The pressure relief valve must be CE-certified to the EU Pressure
Equipment Directive by an EU “Notified Body.”
!
WARNING
Risk of improper moving. Can cause equipment damage, injury or death.
Use only lifting equipment that is rated for the unit weight by an OSHA-certified rating
organization. Shipping weights and unit weights are listed in Tables 6-13.
!
WARNING
Risk of contact with high-speed rotating fan blades. Can cause injury or death.
Disconnect all local and remote electric power supplies and verify that the fan blades have
stopped rotating before working in the unit.
Do not operate unit with any or all cabinet panels removed.