Brochures and Data Sheets

Economical Chilled Water Systems
EC Plug Fans in underfloor
configuration (available on all
Liebert CW downflow models)
EC Plug Fans in-unit
configuration (available on all
Liebert CW downflow models)
By taking advantage of your existing central air conditioning chiller,
the Liebert CW provides thrifty, durable cooling and humidity control
around the clock, throughout the year.
The Liebert CW chilled water system offers rugged, yet
affordable cooling and humidity control where a central
water chiller is available as a year-round cooling source. In
these applications, a single chiller can be used for multiple air
conditioning units, providing savings on additional heat
rejection components.
The full line of Liebert chilled water systems use Liebert
iCOM microprocessor-based controls to maintain precise
temperature and humidity levels, while the cooling hardware is
designed and built for continuous, trouble-free operation.
More Cooling Capacities
Available in ten cooling capacities, with either upflow or
downflow configurations.
Chilled Water Control Valve
The chilled water valve provides proportional control action
in response to room temperature and humidity as sensed
by the microprocessor control. It includes operating linkage
and electronic motor. Unlike other systems of this nature it
requires no over-travel linkage or end switches to be adjusted.
The control uses “intelligent logic” to eliminate valve hunting,
thus greatly increasing the life of the valve. The valve can be a
3-way or 2-way to meet the appropriate requirements of the
installed system.
Economizer operation
For economical, free-cooling operation, Liebert CW is
compatible with the Liebert Air Economizer solution, and
also works with Chiller Plant Series Economizer applications.
Economizers can reduce operating costs by up to 50%, based
on regional ambient conditions.
Premium efficiency centrifugal
fans, and optional Variable
Speed Drive fan motors,
(available on all models)
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Liebert CW
™
Chilled Water Cooled Precision Air Conditioning For Data Centers
All Liebert CW Downflow Models Are Now Available With
Energy Efficient EC Plug Fans.
The energy saving capabilities
of the Liebert CW with EC Plug
Fans or variable speed drive
fans result in a quick payback
through lower electricity costs.