CAUTION: Risk of contact with high-speed rotating fan blades. Can cause serious injury. 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 accidents and injuries. There is a risk of injury due to electric shock and rapidly rotating
parts. Repairs during live operation may only be carried out by qualified personnel with sufficient expertise,
knowledge of the hazards and appropriate protective equipment.
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.
CAUTION: Risk of contact with hot surfaces. Can cause injury. Personal burn injury can be the result of
touching an electronics housing, fan motor, and 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,
including when replacing or performing maintenance on the fans.
CAUTION: Risk of improper piping installation, leak checking, fluid chemistry and fluid maintenance. Can
cause injury. Building and equipment damage may also result. 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.
NOTICE
Risk of improper power-supply connection. Can cause equipment damage and loss of warranty coverage.
Prior to connecting any equipment to a main or alternate power source (for example back-up generator
systems) for start-up, commissioning, testing, or normal operation, ensure that these sources are correctly
adjusted to the nameplate voltage and frequency of all equipment to be connected. In general, power-source
voltages should be stabilized and regulated to /- 10% of the load nameplate nominal voltage.
See transformer label for primary tap connections. Installer will need to change transformer primary taps if
applied unit voltage is other than pre-wired tap voltage.
NOTICE
Risk of piping-system corrosion and freezing fluids. Can cause leaks resulting in equipment and very expensive
building damage. Heat exchangers and piping systems are at high risk of freezing and premature corrosion.
Fluids in these systems must contain the proper antifreeze and inhibitors to prevent freezing and premature coil
and piping corrosion. When the cooling unit or piping may be exposed to freezing temperatures, charge the
system with coolant fluid based on the coldest ambient design temperature. Automotive antifreeze is
unacceptable and must NOT be used in any fluid system. Use only coolant fluid solution that meets the
requirements of recommended industry practices. Do not use galvanized pipe.
1 Important Safety Instructions
2
Vertiv™ Liebert® DCDactive Fan Module User Manual
Содержание Liebert DCD
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