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What is ISavePower Compress ShieldTM?
ISavePower Compress ShieldTM is a patented refrigeration system treatment developed specifically to improve the efficiency of heat exchangers in air-conditioners, chillers, and refrigeration systems (U.S. Patent #4,963,280). Developed in 1990 after 10 years of research, its unique patented formulation distinguishes it from all other oil additives.
ISavePower Compress ShieldTM is a pure refrigeration lubricant that has two unique properties: A) it is negatively polarized so it has an attraction for metal surfaces and B) it conducts heat.
ISavePower Compress ShieldTM is backed by a manufacturer’s guaranteed 10% KW/Ton reduction, though 95% of the installations generated a minimum 15% savings. Payback is also guaranteed at 36 months or less.
What does ISavePower Compress ShieldTM do?
Increased heat transfer:
ISavePower Compress ShieldTM increases efficiency: because it’s a pure lubricant with characteristics of metal that transfers heat. It breaks up stagnant refrigeration oil in the condenser and evaporator restoring the system's ability to transfer heat. It effectively cleans the surface and prevents future oil build up. Results can be seen on the coils, on the compressor and even in the oil temperature. 
What does ISavePower Compress ShieldTM do? (continued)
Reduced mechanical friction:
ISavePower Compress ShieldTM creates a barrier lubricant film that protects industrial pumps and motors from lubrication breakdown and subsequent damage
The boundary film remains on the surface, protecting the metal. It does not wash off during refrigerant flooding.
The combination of ISavePower Compress ShieldTM and the oil is stronger than the oil alone. ISavePower Compress ShieldTM reduces the operational load, thereby reducing abrasion and extending the life of the equipment.
It also reduces excess heat generated and oil foaming, extends drip down time, reduces valve noise, and maintains seal pliability.
Reduced run time:
By improving the heat transfer rate of the evaporator and condenser, the system capacity is restored. With capacity restored, compressors don't need to run as long to produce the same amount of heat transfer, and thus cycle off sooner.
Typically, how much is the heat transfer capability of an untreated chiller diminished?
A study published by ASHRAE (the American Society of Heating, Refrigerating and Air-Conditioning Engineers) conclusively shows that system performance is degraded by as much as 30% due to lubricant build-up on internal surfaces throughout the refrigeration system. This build-up is gradual (approximately 2% per year) and causes heat transfer degradation, which increases pressure drops, elevates boiling points and reduces the latent heat capacity of the equipment. The end results of these problems are substantial loss of cooling capacity, loss of lubricity, significantly increased operating costs and shortened equipment life.
When is friction worst in a chiller? How does ISavePower Compress ShieldTM help?
Friction is worst at start-up. Chillers are regularly cycling on and off to satisfy demand. When off for a period of time, the oil drains to the bottom, leaving moving metal parts without a protective lubrication barrier when the ‘on’ cycle resumes. ISavePower Compress ShieldTM helps by staying bonded to metal surfaces after the oil drains, providing excellent lubricity on start-up.
What is the most common cause of compressor failure? Does ISavePower Compress ShieldTM help?
60% To 70% of all compressor failures start with refrigerant flooding! Refrigerant returning to a compressor should always be in a gas form, When it enters as a liquid, it is called “Flooding”.
Compress ShieldTM has staying power. It will not “Wash-off” of the metal parts like refrigeration oil does, therefore, it continues to protect!
Where did ISavePower Compress ShieldTM come from?
ISavePower Compress ShieldTM was invented by three scientists: Dr. Charles Wilkins, a former Dean of the Department of Metallurgy at the University of Alabama (deceased); Dr. Charles Thompson, a lead scientist for DuPont for 26 years (deceased); and Mr. Jack Hammack a lubrication expert (consultant to ISavePower Compress ShieldTM).
What applications does ISavePower Compress ShieldTM work well with and why should I use it?
ISavePower Compress ShieldTM can be used to treat air-conditioners, refrigeration units, and heat pumps. It can be used to treat rotary and screw-type compressors, hermetically and semi-hermetically sealed positive displacement (reciprocating) compressors, scroll compressors, and centrifugal chillers. It works in any system where operating temperatures range between – 65o F To 400o F. ISavePower Compress ShieldTM can be applied to all sized air-conditioning and refrigeration systems.
It protects the mechanical parts within the systems thereby saving energy, reducing maintenance problems and extending the life of the equipment. If you believe in protecting the environment, then this is one of the greenest products you can buy.
How long should I expect before I see my return on investment?
ISavePower.com guarantees a 36 month payback, though most installations have much faster paybacks.
There are lots of factors on what kind of savings your systems will achieve. Installations with heavier use their air conditioning chillers can achieve much faster paybacks (i.e. - refrigeration businesses, warmer climate installations, etc...). Older chillers have greater build-up of residue than newer ones, so they achieve greater relative savings when that residue is removed.
The bottom line is when you purchase ISavePower Compress ShieldTM, your worst-case scenario is a 36 month payback (or ~30% annualized return on investment). If you don’t achieve that, ISavePower.com will adjust your purchase price downward, until you do. It’s as risk-free an investment in your chillers as possible.
How do I know ISavePower Compress ShieldTM is working?
ISavePower.com’s professionals measure the electricity draw and the chiller temperature before and after the installation of ISavePower Compress ShieldTM. A tangible drop in both occurs within minutes of installation, because the residue in the system has been displaced by the electrostatically charged ISavePower Compress ShieldTM. Both lubricity and heat transfer occur at that point.
With treatment Without treatment
LOAD 0.85 KWH/TON LOAD 1.11 KWH/TON
Why should I believe that it actually works?
It has been certified by independent lab tests and independently field-tested by the Department of Energy. Besides the many clients that are using ISavePower Compress ShieldTM, the U.S. government has done tests on refrigerant oil additives and has proven that they are effective in saving energy.
Is ISavePower Compress ShieldTM effective in a heat pump or geothermal system?
ISavePower Compress ShieldTM will work in any type of air conditioning or refrigeration system. Because the heat pump and geothermal systems run year-round, the wear on the system will be greatly reduced.
Why would my air conditioning company say it doesn’t work or that they don’t recommend using it in my system?
This can be an initial reaction due to unfamiliarity with the product. We have contractors, hospitals, hotels, casinos and manufacturing plants that have been using the product for years. We will be glad to provide you with a list of references that you may contact. Many of the people now using and selling ISavePower Compress ShieldTM were initially skeptical of its efficacy when first introduced to the product. Lack of knowledge about the product is the main reason that some air conditioning companies do not endorse our product.
Will ISavePower Compress ShieldTM void the manufacturer's warranty?
No, it will not void any manufacturer’s warranty. ISavePower Compress ShieldTM doesn’t have any chemicals that are damaging in any way to any of the metal contained of the engine. It’s simply a super lubricant that is electrostatically attracted to metallic engine surfaces, resulting is the displacement of heat-transfer-eliminating residue.
Will ISavePower Compress ShieldTM work in a new unit/compressor?
Yes. A typical unit/compressor loses 2%-4% efficiency per year. ISavePower Compress ShieldTM will help maintain the system’s peak efficiency and its lubrication properties will reduce wear and tear, hence increasing the life of the unit/compressor. Older units tend to have oil built up within the system that robs them of efficiency. ISavePower Compress ShieldTM eliminates that in old systems and prevents it from developing in new systems.
Will ISavePower Compress ShieldTM allow my 5-ton unit run like a 6-ton unit?
ISavePower Compress ShieldTM will bring your unit back to the manufacturer's specifications with the increased efficiency and cooling capacity. If an undersized unit is not cooling the area, chances are ISavePower Compress ShieldTM won’t solve that problem.
How will ISavePower Compress ShieldTM help with the new 13 SEER standard and cost?
ISavePower Compress ShieldTM can alleviate your worries about the new 13 SEER standard and associated costs. ISavePower Compress ShieldTM will increase the life of a unit 2-5 years, thus helping delay the purchase of a new system until the cost of the new 13 SEER units have decreased. In addition, ISavePower Compress ShieldTM will increase the efficiency of your current unit, therefore saving you energy and money.
Can I purchase ISavePower Compress ShieldTM in a store or on the Internet?
No, it can only be purchased from an ISavePower Compress ShieldTM sales agent or an authorized distributor. Only licensed HVAC companies and/or licensed individuals can install ISavePower Compress ShieldTM. This is for two reasons: A) the equipment must be operating properly prior to installation and B) we guarantee an increase in efficiency and therefore temperature and amperage readings must be taken to provide a baseline indicating how the unit was performing prior to installation. To inquire about an ISavePower Compress ShieldTM installation, contact us at
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or 800-551-3535 and we will schedule a pre-installation consultation.
Is ISavePower Compress ShieldTM compatible with all refrigerants?
As far as we know, ISavePower Compress ShieldTM is compatible with all refrigerants. The following is a list of refrigerants that it’s been tested successully with:
- R-134A, R-124, R-125, R-22
- Refrigerants From the Methane Series; R-10 to R-170
- Refrigerants From the Propane Series; R-216ca to R-290
- Chloro-difluormethane; R-502
- Sulfur Dioxide; R-764
- Carbon Dioxide; R-744
- Ammonia Based Systems
However, to protect against the possibility of the existence of a non-compatible refrigerant and to ensure the integrity of the warranty, an ISavePower.com pre-installation consultation must be performed prior to any installation. Contact us at
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or 800-551-3535 to schedule a pre-installation consultation.
Is ISavePower Compress ShieldTM compatible with all refrigeration oils?
ISavePower Compress ShieldTM has been tested and used with all major refrigeration oils – mineral oil, alkylbenzine, and POE. Before installing in a system with an oil other than those, the system should be reviewed by an ISavePower Compress ShieldTM engineer.
After I install ISavePower Compress ShieldTM is there anything I need to do?
Yes, depending on the equipment, we recommend that oil levels and pressures be monitored for a period after the installation. Units that experience extreme oil migration may have a large amount of oil returning to the compressor. We also advise that the technician check the filter dryer on the next scheduled PM. Occasionally, trash in the system will migrate to the filter and the filter will require a change. These same circumstances may also lead to the saturation of filter driers also.
Will I need to re-install ISavePower Compress ShieldTM every year?
No, ISavePower Compress ShieldTM is permanently in the system. If your system experiences a refrigerant leak, the loss of ISavePower Compress ShieldTM would be minor. If the oil is lost or requires replacement, then only a small amount of ISavePower Compress ShieldTM would be required. Please consult our technical department for the proper amount.
Does ISavePower Compress ShieldTM have any government certifications?
U.S. Dept of Energy
Federal Energy Management Program - FEMP
Pacific Northwest National Laboratory - Richland, WA - Sept 1995
Compress Shield is approved for purchase by the U.S. Government National Stock Number (NSN) 680-13775405; Average energy savings of 14.8%.
U. S. Dept. of Energy, Florida Department Of Energy
Energy Conservation Assistance Programs - ECAP
Universal Studios - Orlando, FL - Nov 2002
Average increased efficiency of 12.63%
U.S. Dept of Energy, Florida Department Of Energy
Energy Conservation Assistance Programs - ECAP
Mobil Exxon - Orlando FL - May & July 2003
"[ISavePower Compress ShieldTM] has reduced compressor run times, amperage loads and decreased KW usage (according to the data collected by the utility company).
[ISavePower Compress ShieldTM] qualifies as an energy conservation product for the small business community under state funded programs such as The Florida Energy Loan Program - FELP."
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