Emerson Liebert Precision Cooling User Manual

Liebert

Variable

Speed Upgrade Kits

Save Money Through Energy Efficient Operation

$5,100/year



In IT operations looking for fast

in fan speed

Precision Cooling For Business-Critical Continuity™

Save from

$1,700 to

per unit

Get more efficient operation from your existing Chilled Water CRAC systems and quick payback through lower electricity costs and utility rebates.

The Variable Speed Drive (VSD/VFD) Upgrade is easily installed on your Liebert Deluxe System/3 Chilled Water systems, providing immediate results with lower electrical bills.

Typically, CRAC fans run at a constant speed and deliver a constant

volume of air flow. Adding a Variable Speed Drive to the fan motor

allows fan speed and power draw to be reduced as load decreases. A 20

percent reduction in fan speed provides almost 50 percent savings in fan

power consumption.

VSD Features

Lowest Total Cost of Ownership

 Average payback on

electricity costs is less than two years

 Utility rebates available in

some regions, providing even faster payback

Flexibility

 Easy field installation by a

factory trained technician

Higher Availability

 Variable fan speed increases

the life of the fan and motor

The VSD/VFD Motor Upgrade Kit is Ideally Suited For Chilled Water Models of Liebert Deluxe System/3:

 In IT operations looking for

fast, easy methods of cutting costs long term

Liebert Deluxe System/3 Chilled Water systems are easily field retrofitted with the VSD/VFD motor kit to maximize energy efficiency

ROI on cost saving initiatives

…a 20% reduction

provides almost

50% savings in

power

consumption

Estimate your savings

Emerson Network Power



Embedded Power

$3,400 energy cost savings per

System/3 for VSD/VFD

$3,400 + $1,100 = $4,500 first

The example below shows the cost to operate a floormount chilled water cooling unit at $0.10/kWh. Average energy savings offer full payback on VSD/VFD upgrades in two years or less.

Liebert Corporation

1050 Dearborn Drive P.O. Box 29186 Columbus, Ohio 43229 800 877 9222 Phone (U.S. & Canada Only) 614 888 0246 Phone (Outside U.S.) 614 841 6022 FAX

$5,100/Year

Savings

$3,400/Year

$2,500/Year

Savings

$1,700/Year

Savings

Your Emerson Network Power/Liebert representative or local electric company can give you information about utility rebates for deploying energy efficiency initiatives. Rebates can lower the payback period to less than a year in many application s.

Real world payback

A customer in Texas has completed a VSD/VFD upgrade, and utility savings based on site kW measurement readings are:



unit per year (34,427 kWh/unit/year)

 $1,100 first year utility incentive per unit

year savings per unit.

A factory-trained service professional will assess your existing Liebert Deluxe

compatibility.

liebert.com

24 x 7 Tech Support

800 222 5877 Phone 614 841 6755 (outside U.S.)

While every precaution has been taken to ensure accuracy and completeness in this literature, Liebert Corporation assumes no responsibility, and disclaims all liability for damages resulting from use of this information or for any errors or omissions.

All names referred to are trademarks or registered trademarks of their respective owners.

® Liebert and the Liebert logo are registered tradem arks of the Liebert Corporation.

AP-20020 (01/09)

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Business-Critical Continuity™.

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