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by Better Technolgy Trust

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ENVIRO-SAFE: OZONE SAFE REFRIGERANTS

How efficient is ENVIRO-SAFE?

Extremely efficient! ENVIRO-SAFE  R-134a REPLACEMENT (ES-12a) is up to 32% more efficient than R-12 and much more efficient than R-134a. This means less wear on your refrigeration system, substantial energy savings and reduced operating costs. With ENVIRO-SAFE the compressor will only load approximately 2-3 hp. ENVIRO-SAFE R-134a REPLACEMENT's boiling temperature is -30.4ºF. ENVIRO-SAFE R-134a REPLACEMENT was designed as an R-12 & R-134a replacement in all R-12 & R-134a applications. Click to view the Pressure Temperature Chart:

ES-12a

ES-22a

ES-502a

Is ENVIRO-SAFE safe?

Yes! ENVIRO-SAFE is an "ENVIRONMENTALLY SAFE" organic, non-toxic, non-ozone depleting hydrocarbon compound with the following ratings: ISO 5149; BS 4434 & AS/NZS 1677. ENVIRO-SAFE refrigerants are hydrocarbon refrigerants which have been endorsed by Greenpeace and is in full compliance with the UN Montreal Protocol. Like most organic materials ENVIRO-SAFE R-134a REPLACEMENT is flammable, but its ignition temperature is 1585ºF at both 5 psi and 0 psi (which is better than the DuPont R-134a's ignition temperature of 368ºF at 5 psi and 1411ºF at 0 psi). Nevertheless, a pine odor has been added to the product so that any leak in a refrigeration system can be readily detected. To locate the precise origin of a leak, it is recommended that a hydrocarbon detector be utilized. Most mid and higher priced conventional leak detectors will detect hydrocarbon refrigerants. In the alternative, either soap bubbles or ENVIRO-SAFE DYE CHARGE can be used. ENVIRO-SAFE DYE CHARGE is both visually detectable and responsive to black light.

In a safety study, the prestigious Arthur D. Little scientists concluded that hydrocarbon refrigerants pose no significant increased risk or hazard over freon.

• ENVIRO-SAFE does not become caustic if contaminated with moisture or oxygen.
• ENVIRO-SAFE is a better conductor of heat and requires less horsepower to compress, which reduces compressor wear and extends compressor life.
• ENVIRO-SAFE does not require a compressor oil change.
• ENVIRO-SAFE has a very low Global Warming Potential and a Zero Ozone Depletion Potential.

ENVIRO-SAFE is covered by OSHA Hazard Communication Standard. To view the Material Safety Data Sheets, click on the following link:

How does ENVIRO-SAFE compare?

Properties	R-12	R-134a	ES-12a
Atmospheric Lifetime Year	130	16	less than 1
G.W.P. (CO2=.05)	3650	600	4
O.D.P. (R-12=1.0)	1.0	0	0
Thermal Performance	0	-8%	+12-32%
Oils Compatibility	Mineral	Synthetic	Both
Components, changes and/or wear	No	Yes	No
Potential Corrosion	Yes	Yes	No
Toxic Thermal Decomposition	Phosgene Gas	Hydogen Fluoride Gas	None
Long Term Health Effects	None	Tumors on testicles	None
Short Term Health Risks	None	May cause death	None
Leak Detection	Halide	Halide	Hydrocarbon
Boiling Point (f)	-21	-15	-30.4
Critical Temp. (f)	233.6	214	205
Auto-ignition (f) 0 psi	Nonflamable	1411	1585
Auto-ignition (f) 5 psi	Nonflamable	368	1585

How is ENVIRO-SAFE packaged?

ENVIRO-SAFE is available in cans (12 cans per case), 30lb. cylinders and also 50lb. cylinders.

Does ENVIRO-SAFE require retrofitting?

No! ENVIRO-SAFE R-134a REPLACEMENT is a direct drop-in R-134a replacement. It requires no retrofitting or redesigning of the refrigeration system because it is completely compatible with all the materials, hoses, O-rings, seals and oils (mineral, pag or synthetic) in all systems. The savings can be enormous! If you have an automotive R-12 system you must change the two vehicle fittings to the 134a type fittings and properly remove any freon in accordance with EPA procedures. Changing the fittings can be easily done by screwing on (over the existing R-12 fittings) R-134a adapter fittings which we offer on our ENVIRO-SAFE Prices page.

How do I install ENVIRO-SAFE?

There are no new procedures or techniques to learn! The same equipment and gauges are used. The refrigeration system is charged in the same manner as with the refrigerant being replaced using approximately the same pressure levels. (Note: ENVIRO-SAFE ES R-134a REPLACEMENT, ES-22a & ES-502a pressure on the high side may run up to 15 psi lower than what your high side pressure normally is. The low side pressure should be approximately the same as your low side pressure at any given ambient temp.) For those who install by weight, the equivalency ratios are: [.33 lb. of ENVIRO-SAFE R-134a REPLACEMENT is equivalent to 1 lb. of R-12] [.38 lb. of ENVIRO-SAFE R-134a REPLACEMENT is equivalent to 1 lb. or R-134a] [.41 lb. of ES-22a is equivalent to 1 lb. of R-22] [.40 lb. of ES-502a is equivalent to 1 lb. of R-502] ENVIRO-SAFE is completely compatible with synthetic, pag or organic oils in all systems. No flushing or oil changes are required. The only difference in charging is that ENVIRO-SAFE is installed as a liquid.

• 1 - If you do not know the refrigerant capacity of your system, check the capacity page click here.
• 2 - If system is charged, check system for leaks or defective components. Replace or repair as necessary. Determine that compressor has proper amount of lubricant according to manufacturer's specifications. Completely evacuate the system in accordance with EPA approved procedures.
• 3 - If desired, pull a vacuum to check for leaks. On small AC systems like all passenger motor vehicles - COMPLETELY RELEASE VACUUM BEFORE CHARGING. Unlike freon, ENVIRO-SAFE does not become caustic if moisture is present. Charging under a vacuum on small AC systems may result in an overcharge. Any overcharge may cause loss of cooling efficiency. On larger systems found in RVs, Buses and in all applications of ES-22a and ES-502a CHARGE UNDER VACUUM.
• 4 - Connect gauges and hoses. With compressor off, open cylinder "liquid" valve or invert can (do not shake can while filling - hold can steady) to install ENVIRO-SAFE on low pressure side of compressor (installing as a liquid will not harm the compressor). Establish flow. After an initial minimum charge is achieved, start compressor and set system to high. Continue adding ENVIRO-SAFE as needed to achieve either the proper amount as determined by the equivalency ratio or the proper pressure level according to manufacturer's specifications. DO NOT OVERCHARGE! Exceeding 60 psig on the low side may damage compressor. In some cases, clearing the site glass overcharges the unit. Any overcharge may cause loss of cooling efficiency.
• 5 - After verifying that the pressures and temperatures are correct, shut off compressor, disconnect guages, install service port caps and place the ENVIRO-SAFE "stick on" tag (shipped along with each refrigerant purchase) in a clearly visible area.
• 6 - If a system has been overcharged or has a leak and must be recharged, completely evacuate the system using reclaiming equipment and start the charging procedure over.

Does ENVIRO-SAFE have EPA approval?

ENVIRO-SAFE is a zero ozone depleting "second generation" replacement for R-134a and all other substitutes for freon that are non-ozone depleting. EPA's Final Rule, issued April 1, 1994, states:

"In this final rule, the Agency has determined that second generation replacements, if they are non-ozone depleting and are replacing non-ozone depleting first generation alternatives, are exempt from reporting requirements under Section 612"

If an automotive system is "first generation" (ie.- has 134a fittings, contains no freon, has the appropriate sticker, etc.) it may accept a "second generation" refrigerant like ENVIRO-SAFE R-134a REPLACEMENT.

Is ENVIRO-SAFE guaranteed?

ENVIRO-SAFE is guaranteed to be ozone safe and to perform as an efficient refrigerant in all systems. ENVIRO-SAFE is guaranteed to be up to 32% more efficient than freon. ENVIRO-SAFE is guaranteed not to become caustic if contaminated with moisture and oxygen. ENVIRO-SAFE is further guaranteed not to harm air conditioning system components or any other related mechanical equipment if installed and used according to factory directions.