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               Chiller Optimizer

Welcome to chiller energy efficiency technology.

The Chiller Optimizer is an economical system for application in commercial and industrial facilities that yields 20 to 30% energy savings, reduces peak energy demand, improves temperature control, extends chiller life and reduces chiller maintenance.

This self-contained microprocessor system is specifically designed for use with chillers and comes factory-programmed with ELECTRA" software. Only the Millennium Series Chiller Optimizer" combines the highest quality state-of-the-art hardware with custom ELECTRA" software with specialized chiller algorithms developed after hundreds of Chiller Optimizer" installations and 35 years of chiller and chiller control experience. There are NO compromises to comfort or chiller performance. Only improved efficiency.

A multitude of companies, including many FORTUNE 500 companies, have dramatically reduced their  
energy costs by having Energy Optimization's Chiller Optimizers installed. These companies have seen         return-on-investments (ROIs) of a minimum of 500% over the 15-years life of their Chiller Optimizers.
Chiller Optimizer is a registered trademark of K&A Americas, LLC - 6021 University Blvd., Suite 320 
Ellicott City, Maryland 21043


Imperial Palace Hotel Las Vegas, Nevada Four Seasons Hotel (3) Toronto, Canada Nationwide Insurance Raleigh, NC Cal Poly Pomona (6) Pomona, CA
Windward Mall 
Kaneohe, Hawaii
Koll Center Newport (KCN-9)  
Newport Beach, CA
Fruit Of The Loom Spinning Plant, Aliceville, AL Kaiser Hospitals Pasadena, CA 
(Regional headquarters)
Los Angeles, CA
Apple Computer Fremont, CA Loral Imaging Systems Fremont, CA Port Plaza Mall 
Green Bay, WI
Teledyne Components Division, 
Mountain View, CA
Xerox Corp. 
Santa Ana, CA
Marquis Resort, Palm Springs, CA Holiday Inn Hotel
Key West, FL
Holiday Inn
Cancun, Mexico
Wyndham Garden Hotel, Costa Mesa, CA Intel Corp. 
Manila, Philippines
King Of Prussia, PA

Click Here: Chiller Optimizer Brochure

Click Here: Case Study Hilton/California 

Click Here: View The Chiller Optimizer Video

Frequently Asked Questions:

When does the Optimizer save energy?

It's really most of the time. These are some of the conditions when savings occur: Early morning, at night, Spring, Fall, Winter if chillers run, a cloudy day, if chiller is oversized, if chillers cycle frequently, when occupancy is low, when production is less than maximum.

What kind of savings can I expect?
Annual savings are 25-30% but can be more during low load conditions.

If savings are 25-30% what will my dollar savings be?
Actual dollar savings are dependant on the size of chillers, the operating hours, and the kWh rate. The larger the chiller the larger the savings. Also, facilities that operate 24 hrs/day such as hotels, hospitals, or factories will realize the greatest dollar savings often $30-80,000.
Yes, these are perfect applications. Efficiency improvements are greatest on older chillers. If considering a refrigerant conversion to a non-CFC refrigerant the addition of a Chiller Optimizer" provides savings to pay for this conversion. Without an Optimizer, there is no financial incentive as the conversion only solves the environmental requirement and routinely degrades the efficiency of the chiller.

If I have an EMS (Energy Management System), BMS (Building Management System), or BAS (Building Automation System) is there an application for a Chiller Optimizer"?
In most cases, yes. Most control companies (Honeywell, Johnson Controls, Landis & Gyr, Staefa, Alerton, Andover, Siemens, CSI, etc.) only start and stop chillers and do not provide chiller control strategies that improve the operating efficiency. The Chiller Optimizer" provides the link between the EMS/BMS and the chiller to improve efficiency and the Optimizer is controlled by the EMS. An engineer must verify functions of your EMS.

In most cases no! Most chillers are bought from the low bidder and they do not include energy efficient controls unless specified. Even OEM microprocessors such as York's CodePak, Carrier's MP-3200's, Trane's UCP, or McQuay's MicroTech typically provide only digital read-outs of temperatures and pressures. In some cases they do provide a soft-start feature or only 10% of the Chiller Optimizer" benefits.

Do I lose cooling capacity or risk guest or tenant comfort using an Optimizer?
No, the Optimizer provides maximum cooling when required. Even if the Optimizer has off-loaded the chiller on a cool evening and the internal load increases for instance because of a large banquet in a hotel, the Optimizer recognizes this change and responds accordingly.
Absolutely! Especially in New York City where Con-Ed steam is very expensive and many highrise buildings in Manhattan have large absorbers. Savings are huge and paybacks very attractive. Con-Ed may even offer incentives for efficiency. Some large buildings also have both an absorber and a centrifugal chiller. A Chiller Optimizer" can control and Optimize both chillers.
No! None of the existing chiller controls, safeties, or alarms are removed. A by-pass switch is installed to isolate the Optimizer and for service or failure the original controls can be used.
Two ways. The decision of when to start the second or lag chiller is usually not a scientific one. It's started at a specific time or temperature because that's the way it's always been done or because a staff engineer believes it's time to start it. For the engineering staff it's better to have too much cooling than too little even though it's not the most efficient. The Chiller Optimizer TM starts the lag chiller only when the load requires it.

Also, when the lead chiller is operating at full load and the lag chiller starts, it too ramps to full load. Now both chillers are operating at capacity. If this condition lasts for 15 minutes it's almost certain the Peak Demand level will be exceeded and depending on location these Demand charges can remain all month or all year and can amount to mid to high five digit figures (dollars).

Under Chiller Optimizer" control, when the lead chiller reaches approximately 90% load the Optimizer begins to soft start the lag chiller. When assured the lag chiller has started, the Optimizer off-loads the lead chiller to 45% load and load the lag to 45%. As load increases each chiller is ramped up in 2% increments. This strategy prevents the chillers from breaching the 15 minute Peak Demand window.

Are there any disadvantages to installing a Chiller Optimizer"?

Absolutely none!. It offers substantial savings, impressive paybacks, improves temperature control, extends chiller life, and enhances manpower efficiency.

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