Vertiv Liebert Drycooler Installer/User Manual page 8

NOTICE
Risk of excessive coolant fluid pressure, improper piping material, and unsupported piping. Can cause piping
rupture, coolant fluid leaks and building and/or equipment damage.
To avoid the possibility of burst pipes, the system installer must supply and install a relief valve in the system.
Galvanized pipe must not be used in glycol systems. To help prevent piping failures, supply and return lines
must be supported such that their weight does not bear on the piping of the unit or pumps.
NOTICE
Risk of overheated pump seals. Can cause piping system damage, coolant fluid leaks, and substantial building
damage.
Do not run pumps without fluid in the system. Pump seals require fluid to keep them cool; running them without
fluid for any amount of time will damage the seals, which may cause a failure.
NOTICE
Risk of damage from forklift. Can cause unit damage. Keep tines of the forklift level and at a height suitable to
fit below the skid and/or unit to prevent exterior and/or underside damage.
NOTICE
Risk of a catastrophic water circuit rupture. Can cause expensive building and equipment damage.
Install shutoff valves in the supply and return water lines that automatically close if water is detected by the
leak detection system. The shutoff valves should be spring return and must be rated for a close-off pressure
that is the same as or higher than the supply water pressure. A monitored leak detection system should be
installed in the base of the unit or under the unit to actuate the shutoff valves immediately on a leak detection
signal.
NOTICE
Risk of no-flow condition. Can cause equipment damage.
Do not leave the water/coolant fluid-supply circuit in a no-flow condition. Idle fluid allows the collection of
sediment that prevents the formation of a protective oxide layer on the inside of tubes. Keep unit switched On
and water/coolant fluid-supply circuit system operating continuously.
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Vertiv | Liebert® Drycooler Installer/User Guide