Vertiv Liebert XDU 060, Installer/User Manual

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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 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: backup 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 within ±10% of the load nameplate nominal voltage. Also, ensure
that no three-phase sources are single-phased at any time.
NOTICE
Risk of piping system corrosion and freezing fluids. Can cause leaks resulting in equipment and very expensive
building damage. Cooling coils 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. The water or water/glycol solution must be analyzed by a competent local water treatment
specialist before start up to establish the inhibitor and antifreeze solution requirement and at regularly
scheduled intervals throughout the life of the system to determine the pattern of inhibitor depletion.
The complexity of water/glycol solution condition problems and the variations of required treatment programs
make it extremely important to obtain the advice of a competent and experienced water treatment specialist
and follow a regularly scheduled coolant fluid system maintenance program.
Water chemistry varies greatly by location, as do the required additives, called inhibitors, that reduce the
corrosive effect of the fluids on the piping systems and components. The chemistry of the water used must be
considered, because water from some sources may contain corrosive elements that reduce the effectiveness of
the inhibited formulation. Sediment deposits prevent the formation of a protective oxide layer on the inside of
the coolant system components and piping. The water/coolant fluid must be treated and circulating through
the system continuously to prevent the buildup of sediment deposits and or growth of sulfate reducing
bacteria.
Proper inhibitor maintenance must be performed in order to prevent corrosion of the system. Consult glycol
manufacturer for testing and maintenance of inhibitors.
Commercial ethylene glycol, when pure, is generally less corrosive to the common metals of construction than
water itself. It will, however, assume the corrosivity of the water from which it is prepared and may become
increasingly corrosive with use if not properly inhibited.
We recommend installing a monitored fluid detection system that is wired to activate the automatic closure of
field installed coolant fluid supply and return shut-off valves to reduce the amount of coolant fluid leakage and
consequential equipment and building damage. The shut-off valves must be sized to close off against the
maximum coolant fluid system pressure in case of a catastrophic fluid leak.
1 Important Safety Instructions
3