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Emerson Precision Cooling Fascicule

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Precision Cooling
For Business-Critical Continuity™
Liebert
®
Variable Speed Upgrade Kits
Liebert
®
Variable Speed Upgrade Kits
Save Money Through Energy Efficient Operation
VSD Features
Get more efficient operation from your existing Chilled 
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
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.  
Save from 
$1,700 to 
$5 100/year 
Flexibility
„
Easy field installation by a 
factory trained technician
Higher Availability
„
Variable fan speed increases 
the life of the fan and motor
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.  
$5,100/year 
per unit
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
„
In IT operations looking for fast 
„
In IT operations looking for fast 
ROI on cost saving initiatives
…a 20% reduction 
in fan speed 
Liebert Deluxe System/3 Chilled 
Water systems  are easily field 
retrofitted with the VSD/VFD 
motor kit to maximize energy 
efficiency
in fan speed 
provides almost 
50% savings in 
power 
consumption