WARNING! Risk of contact with high-speed, rotating fan impeller blades. Can cause injury or
death. Open all local and remote electrical-supply disconnect switches, verify with a voltmeter
that power is off, and verify that all fan impellers have stopped rotating before working in the
unit.
WARNING! Risk of top-heavy unit falling over. Improper handling can cause equipment
damage, injury or death. Read all of the following instructions and verify that all lifting and
moving equipment is rated for the weight of the unit before attempting to move, lift, remove
packaging from or prepare the unit for installation.
WARNING! Risk of unsecured unit rolling off skid. Can cause equipment damage, injury or
death. The 300-mm (12-in.) DX unit is on casters. Ensure that the unit/skid is located on a flat
surface before loosening the hardware securing the to its shipping pallet.
WARNING! Risk of hair, clothing and jewelry entanglement with high speed rotating fan blades.
Can cause equipment damage, serious injury or death. Keep hair, jewelry and loose clothing
secured and away from rotating fan blades during unit operation.
WARNING! Risk of contact with extremely hot and/or cold surfaces. Can cause equipment
damage, injury and death. Open all local and remote electric power supply disconnect switches,
verify with a voltmeter that power is Off, and verify that all components have reached a
temperature that is safe for human contact or wear appropriate, OSHA-approved PPE before
working within the electric connection enclosures or unit cabinet. Perform maintenance only
when the system is de-energized and component temperatures have become safe for human
contact.
CAUTION: Risk of contact with sharp edges, splinters, and exposed fasteners. Can cause
injury. Only properly trained and qualified personnel wearing appropriate, OSHA-approved PPE
should attempt to move, lift, remove packaging from or prepare the unit for installation.
NOTICE
Risk of oil contamination with water. Can cause equipment damage.
Liebert systems require the use of POE (polyolester) oil. POE oil absorbs water at a much
faster rate when exposed to air than previously used oils. Because water is the enemy of a
reliable refrigeration system, extreme care must be used when opening systems during
installation or service. If water is absorbed into the POE oil, it will not be easily removed and will
not be removed through the normal evacuation process. If the oil is too wet, it may require an oil
change. POE oils also have a property that makes them act as a solvent in a refrigeration
system. Maintaining system cleanliness is extremely important because the oil will tend to
bring any foreign matter back to the compressor.
Vertiv | Liebert CRV Installer/User Guide | 8
To Next Page
Loading...
