WARNING! Risk of improper wire sizing/rating and loose electrical connections. Can cause overheated wire
and electrical connection terminals resulting in smoke, fire, equipment and building damage, injury or death.
Use correctly sized copper wire only and verify that all electrical connections are tight before turning power
On. Check all electrical connections periodically and tighten as necessary.
WARNING! Risk of improper wiring, piping, moving, lifting and handling. Can cause equipment damage,
serious injury or death. Installation and service of this equipment should be done only by qualified personnel
who have been specially-trained in the installation of air-conditioning equipment and who are wearing
appropriate, OSHA-approved PPE. See Table 3.1 on page11, and Table 3.2 on page13, for weights.
WARNING! Risk of improper moving, lifting, or handling of the unit. 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.
Table 3.1 on page11, and Table 3.2 on page13, for weights.
WARNING! Risk of contact with high-speed rotating fan blades. Can cause serious injury or death. Open all
local and remote electric power-supply disconnect switches, verify with a voltmeter that power is off, and
verify that all fan blades have stopped rotating before working in the unit cabinet or on the fan assembly. If
control voltage is applied, the fan motor can restart without warning after a power failure. Do not operate the
unit with any or all cabinet panels removed.
CAUTION: Risk of unsecured strap ends with sharp edges flying uncontrollably in any direction when cut.
Can cause serious injury. Secure both ends of strap when cutting and wear OSHA-approved protective
headgear, gloves, and eye protection when working with the securing straps.
CAUTION: Risk of contact with hot surfaces. Can cause injury. Personal burn injury can be the result of
touching some electrical components that are extremely hot during unit operation. Allow sufficient time for
them to cool to a touch-safe temperature before working within the unit cabinet. Use extreme caution and
wear appropriate, OSHA-approved PPE when working on or near hot components.
Vertiv | Liebert® Drycooler Installer/User Guide
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