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Frequently Asked Questions:
Toxicity & Corrosiveness Flammability Environmental Efficiency & Effectiveness Miscellaneous Usage & Installation

Q: What setting should the evacuator be on when evacuting a system?
A: Vacuum settings should be set between 7-15 inches on the low side ideally. If a major evacuation has happened and a major component has been changed such as a compressor or evaporator than a hard vauum should be pulled to 29 inches.
Q: Will thie product harm my evacuator?
A: Absolutely not, it is not corrosive and therefore cannor harm your evacuator. DURACOOL® is one of the friendliest products produced today. It will actually enhance performance and provide natural lubrication.
Q: Will DURACOOL® harm my Air Conditioning and/or it's components?
A: DURACOOL® will not harm your AC system or it's components. In fact, it will actually add life to air conditioning and refrigeration equipment. This is because it is non-corrosive as compared to R-134a and the R-22 products that may breakdown into highly corrosive components. We even guarantee in writing that the use of our refrigerants will not harm your air-conditioning system.
Q: Is DURACOOL® Toxic?
A: No. DURACOOL® 12a® is non-toxic, and totally organic. This is one of the major differences between the DURACOOL 12a® and the R-134a product which is highly toxic.
Q: Is DURACOOL® flammable?
A: Like all hydrocarbons, DURACOOL® is flammable, and must be handled accordingly. Practically all lubricants, additives and oils used in the engine of a car are flammable. Gasoline is flammable. Hair spray, deodorant and whipped cream aerosol propellants are flammable. All must be transported, handled and utilized (or installed) using safe practices and following instructions where possible.
Q: Have there been studies to determine the potential level of incidence, in terms of ignited automobile compartment leakage?
A: Internationally respected risk accessors Arthur D. Little, in a detailed UK-based study, estimated the risk of an ignited refrigerant leak in the passenger compartment of a motor vehicle as being in the area of 3 in 10 million. Their findings, from a local perspective, mean that if every car in the USA (some 50 to 60 million vehicles) were to use a hydrocarbon refrigerant such an accident might occur once in every 50 years.
Q: What would the impact of and "incident level, once every 50 years" ignited automobile compartment leakage actually be?
A: In terms of the "impact", it is important to recognize that automobiles generally have 12-15 ounces of DURACOOL® refrigerant. If there were a full amount leak into an automobile compartment and it ignited, it would theoretically create a "flash" which would last 1-1.5 seconds.
Q: What is the difference between regular propane and the refrigerant propane that is used to manufacture the DURACOOL ® products?
A: The propane that is regularly used for barbecues, and general consumer or commercial use is a by product or deritive of the hydrocarbon manufacturing process(the production and refining of raw oil products.) The propane used for standard applications (such as your home barbeque). In order to utilize the product as "refrigerant grade" the product is further refined to render out methane gases and other impurities. This refrigerant propane is different in many ways, most notably is the disparity in the auto ignition. Essentially this refining makes the product safer and more stable. The Auto ignition for regular grade propane is ~842 F., while the DURACOOL® products auto ignition is ~1635F.
Q: Why does DURACOOL® have the scent of propane?
A: The additive "ethyl mercaptin" is actually a stenching agent that is added for safety reasons. Mercaptan, as it is commonly known, is added to natural gas, propane, butune and virtually all gases as an agent that will alert the user to any leakage. The addition of mercapan should be viewed as a safety feature (see below). Mercaptan is also condensable in the AC system and can not limit performance in any way and will not negatively impact components. The mercaptan smell is not detectable under regular working conditions or undre normal install conditions.

Note: It is important to recognize that, whether a refrigerant is toxic or flammable, the risk of leakage into the automobile compartment is very, very minimal. The great thing about DURAOOL 12a® is that the product provides for a built-in safety feature that ensures IMMEDIATE notification to t he driver and the drivers family when there is a leak. This safety feature is the addition of 'mercaptan' and this feature is not available with R-134a. Overall, the safety aspects of the DURACOOL® Refrigerants by far outweigh those of the toxic alternatives available today.
Q: Is DURACOOL® Environmentally friendly?
A: Yes. The DURACOOL® line of products are NON-OZONE DEPLETING and NON-GLOBAL WARMING. Only hydrocarbon refrigerants can claim to achieve both of these criteria. GREENPEACE have been long singing the praises of the hydrocarbon technology, and encouraging governments and industry to adopt it over the current products.
Q: Is Global Warming really an issue?
A: The government first found that use of R-12 greatly contributes to the depletion of our ozone and has accordingly outlawed the use of the R-12 through a phased-out plan that was greatly accelerated. Now the Governement has found that R-134a greatly contributes to the high global warming potential (GWP). The GWP issue has been the focus of the Kyoto Protocol Branch of the United Nations Industrial Development Organization and the issues of temperature changes throughout the world are receiving a great deal of focus. In fact, there has been an agreement with the countries in the United Nations to go forth with a gradual phase-out of HFC's such as R-134a (following in the footsteps of the R-12). We anticipate that the phase-out will be accelerated just as the R-12 phase-out was as investigation and forecasting of global warming is completed and published.
Q: Is DURACOOL 12a® efficient?
A: Yes. It has been found to operate even more efficiently than FREON R-12, and significantly better than R-134a. We have recorded energy savings up to 35%. There are also effciency increases over the long term because the DURACOOL 12a® offers longevity to the air conditioning systems and components. This equates to long term savings on repairs and maintenance of refrigeration and air conditioning equipment.
Q: Do you have clear supporting evidence of higher efficiency, etc?
A: DURACOOL® labs have converted and documented the energy effectiveness and the superior cooling capabilities. These studiesare available through our customer service department of Deepfreeze Refrigerants Inc., the contact information can be found in this document.
Q: Does DURACOOL® manufacture any other hydrocarbons under private label?
A: No, however, there have been businesses in the US, Canada or via the Internet which have claimed that their product is DURACOOL ® "private labeled" and this is absolutely untrue. These businesses are attempting to pass off a poor quality product using the DURACOOL® name for its reputation and acknowledged level of integrity.
Q: I've been informed that if I put DURACOOL® in my AC system, that it will void the compressor warranty.
A: Many compressor manufacturers claim that they will void a warranty if there is any product other than R-12 or R-134a installed in the system. We can only speculate as to why this statement has been made, with all the benefits over the R-134a product. This statement is biased and demonstrates a strong allegiance between the OEMs and the compressor manufacturers - such is business these days. These statements are made despite the fact that the DURACOOL® product is less corrosive and has been repeatedly tested and proven to not harm any portion of the air conditioning system. Duracool A/C Compressors are fully warranted with the use of Duracool ® refrigerants. The use of DURACOOL® Refrigerants can not void a manufacturers warranty.
Although the compressor companies have made this statement it is virtually untrue. additionally, compressor manufacturers freely admit that their business is fully aware that DURACOOL® can not harm the system. Compressor manufacturers also freely admit that they do not return compressors when DURACOOL ® is installed. although their printed warranty states otherwise.
Q: Where is DURACOOL® Manufactured?
A: The DURACOOL® product is manufactured by DURACOOL® Refrigerants Inc. DURACOOL® is a company incorporated and operating in Alberta, Canada. DURACOOL® has made Quality Control the over-riding goal, and offer comprehensive technical and back up service. The company is built on integrity and professionalism, and their distributors and employees reflect this in their work ethics and honesty.
Q: Is Duracool® all-natural?
A: Yes, DURACOOL® is absolutely all natural and organic. All components and additives are also natural and and the blends are fully "condensable" which means that they condense within the AC system.
Q: Is DURACOOL 12a® a "drop in replacement?"
A: It is important to understand that there are two types of automobile air conditioning units, those charged with R-12 and those charged with R-134a (R-134a in in all automobiles manufactured after 1994, some during 1993). DURACOOL 12a ® is a drop in replacement for R-134 automobiles, but requires a high and a low side fitting to convert R-12 systems. This is a very inexpensive conversion.
Q: Does the system need to be completely empty?
A: Although mixing DURACOOL 12a® with R-12 or R-134a in your A/C systemwould not damage or harm your system, it is illegal to charge your AC system without first evacuting the refrigerant that is currently in the A/C unit.
Q: Are the pressure and volume charts absolutely correct?
A: No, just like any other refrigerant, the pressure and volume charts should be used as a GUIDE.

We have found that you can have three of the same cars, same age, and they will all take different amounts of refrigerant, not significant differences, but different in volume. The key is to use the chart as a guide rather than the rule. Often systems have component changes such as longer or shorter hoses - these types of changes may affect the volume which will affectthe stated or recommended charge.
Q: I'm charging a car and it's not going into the system, what's wrong?
A: 1. The compressor may be seized or damaged, in this case the refrigerant will not be pulled through the system. Check the fuse to make sure that there is power actually getting to the compressor.

2. It could be that there is a problem with the installation hose system. To check this, install the can tapper to the hose and do not attach the hose to the automobile low fitting. Insert the DC 0095 low side fitting into the quick disconnect and test for restrictions by releasing a small amount of refrigerant through the hose (pointing the hose away from you or others). If the refrigerant sprays through the hose and low side quick disconnect, this means that the can tapper and the hose components are working effectively.

3. Next, install the quick release to hose end and then put a low side fitting (0095) into the quick release fitting, open your can tap and the refrigerant should flow through the fitting. If this happens then the kit is not blocked in any way.

If the compressor os working well and the kit seems to be working well but the refrigerant is not flowing into the system, you can contact Perry's Auto Parts at (413)536.0310.
Q: Why can't I fit the low side fitting on to my low side?
A: The low fittings are internationally generic on every R-134a system. This would mean everything from 1993/94 onwards. The high side fittings have changed slightly during specific model years but generally the Duracool® DC401 or DC403 kits should accomodate most models and years.

If you find that the fitting appears to be too large to fit the hose attachment, this means that you are trying to fit the hose onto the "high fitting".

The low fitting is usually on the line from the accumulator or on the accumulator itself. The accumulator generally sits (on most cars) to the left of the engine rear (when facing the automobile as the installer). A line will run from the compressor to the accumulator, through the accumulator and run down towards the firewall. The low side fitting will be somewhere between the compressor and the firewall (generally); however, there are some cars that have their low side fitting under the car before the hose runs back into the compressor ( such as some '92 Pontiac Grand Prix's which is right underneath the car). If the low side cannot be located, our technical assistance line may be able to locate it in the Mitchell Automotive Air Conditioning and Heating manual(s) - if the low fitting has been indicated on the engine diagrams. If not available, the only alternative is to contact a dealership and request further information.
Q: How come the air is too cold or too warm?
A: Too warm:

Compressor may not be working or the sustem may have a leak and has lost the entire refrigeratnt charge.
The automobile may have been overcharged with too much refrigerant. Check the pressures to know whether or not the system has been overcharged. A DURACOOL® pencil guage or the DURACOOL® low side pressure guage can be used to check the low side fitting psi. Low side pressure should ideally be in the 28-45 psi range.

Too cold:

The system may need another ounce or two of DURACOOL® refrigerant. A system running too cold can indicate that it has been undercharged. Check the pressures to determine whether or not the system has been undercharged. A DURACOOL ® pencil guage or the Duracool® Low Side Pressure guage can be used to check the low side fitting psi. If the system is uncharged the pressure will generally read less than 28 psi. Low side pressure should ideally be in the 28-45 psi range.
Q: When you reclaim DURACOOL® do yuou have to use seperate containers from the other refrigerants if you are not reusing and if you are reusing?
A: Whether you are reusing the refrigerant or arranging for disposal, you should always use separate reclaiming bottles for different refrigerants. For the following reasons; reused refrigerants cannot be blended by law. Secondly, disposal of the individual refrigerants require different disposal procedures.
Q: Can you use the same tank for different refrigerants? Is there residual refrigerants left in the cylinders?
A: Yes, you can use the same cylinders and there will be some residual refrigerant left in the cylinder, but not enough to affect performance.
Q: When you recycle does the oil seperate, friction-fighting additive?
A: The oil will not separate when the refrigerant is being recycled.
Q: Are hydrocarbons used in other areas of the world?
A: Overall, the experiences in Europe with ozone depletion and global warming have facilitated the need for government and industry to recognize and deal with the ever-growing environmental issues that face the planet. This has essentially galvanized many world leaders and governments to swing in behind the trend to hydrocarbon refrigerant.

Overseas, there have been over 8 million domestic refrigerators and freezers maunfactured out of Germany over the last few years alone, using hydrocarbon refrigerant.

Europe has adopted a new Standard (EN-378) that recognizes the use of hydrocarbons. The Danish government has embraced the use and development of hydrocarbons and applications. German technology is leading the world in applications of hydrocarbon technology in domestic refrigeration..

Most countries have embraced the commitment of the Kyoto agreement to phase out HFCs, which includes the R134a product, and all SNAP approved products. Most countries have recognized that the only alternative is hydrocarbons.
Q: Have there been many automobiles converted to Hydrocarbons? What do you base your conversion estimates on?
A: In Canada and the United States it is eastimated that there already have been millions of conversions to hydrocarbon refrigerants within auotmobiles. These estimates have been based solely on the sales figures for hydrocarbon refrigerant sales (since 1990) and the average system installation charge.
Q: Does DURACOOL 12a® contain an additive?
A: Yes. It is a trade marked special sythetic additive and is not available to any other company, (Duracool A/C Oil Chill) is engineered to our exact specifications. This proprietary additive enhances it's uniqueness and was developed after years of testing and study. The addition of Duracool A/C Oil Chill enhances performance and safety to both DURACOOL 12a® and the equipment that it operates in.

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