Category Archives: 410A

R22 Refigerant Phase Out – Environmental Impact

What does the R-22 Refrigerant Phase out mean for your Hvac system?

The current phase of of R-22 Refrigerant in residential and commercial properties leaves home and business owners with unanswered questions. As R-22 is gradually phased out, alternative refrigerants are being introduced. One of these substitutes is R-410A, a blend of hydro-fluorocarbons (HFCs) that does not contribute to depletion of the ozone layer.

HCFC Phase out

Service to current HVAC systems

Production of new air conditioning units charged with R-22 ended in 2010, and by 2020, the servicing of R-22 based systems will rely solely on recycled or reclaimed refrigerants.

If your air conditioner was manufactured before 2010, it probably utilizes R-22. The good news is existing units using R-22 can continue to be serviced with R-22 as there is no EPA requirement for change or conversion of these units.

More than likely, your heating and cooling units will have sufficient R-22, unless a leak occurs. Since production is limited, costs to charge existing units leaking R-22 refrigerant have gone up and are expected to rise. We urge our customers to take the necessary steps to protect yourself from the rising cost of refrigerant. The best thing you can do properly maintain your unit to prevent leaks. You can do so by participating in routine tune-ups in the spring and fall. Remember, routine maintenance is far less expensive than emergency repairs.

Retrofits and Converting units

Retrofit units, converted R-22 units utilize a substitute refrigerant, are allowed if the alternative has been found acceptable for that type of use. Substitute refrigerant can work well in R-22 units with a few changes to system components. For example, simply replacing R-22 refrigerant with R-410A in a preexisting R-22 unit is not recommended due to its higher worker pressure. However, a certified professional can replace R-22 condensers with R-410A condensers, as long as the system coil is also updated. This provides consistency in the refrigerant  cycle, as one coil cannot be replaced without the other, and allows the retrofit to get you by for several more years.

The EPA wanrs of potential safety hazards related to the use of unapproved refrigerants in home air conditioning systems as they are not designed to handle flammable refrigerants.

Impact on the environment

Properly installed home comfort systems rarely develop major refrigerant leaks, and with proper servicing, a system using R-22, R-410A, or another refrigerant will reduce its impact on the environment. Remember to always select a reputable dealer to handle refrigerants.

Refrigerant R-22 is used in a number of refrigeration and air conditioning systems. R-22 is the halocarbon compound named monochlorodifluoromethane with chemical formula CHCIF2 and it is the hydrochlorofluorocarbon (HCFC). R-22 is one of the most popular refrigerant used in cooling system, but unfortunately, the halocarbons (chlorine and fluorine) present in these compounds have the potential to cause depletion of the ozone layer in the atmosphere leading to greenhouse effect. The ozone layer destroying potential of R-22, which is HCFC is much lesser than the other chlorofluorocarbons (CFCs), still in the long-term they do have detrimental effects on the atmosphere.

The depletion of ozone layer from the upper layers of atmosphere results in ultraviolet rays of the sun to reach the surface of the earth. This leads to high temperature on the earth and the ultraviolet ray themselves are very harmful to the skin of humans. To avoid the long-term dangers of the R-22 and other CFCs, it has been decided to phase out the use and production of R-22 completely along with other CFC refrigerants.

ozone depletion

New units

A important thing a homeowner can do for the environment is to purchase a highly energy efficient system. Today’s air conditioners use much less energy, provide cost savings in maintenance an electric costs, and offer a green alternative to R-22 units. Rebates and tax credits also help to offset the cost of new systems.

The best time to switch is before your hit by the high costs of repairing a refrigerant system. Take into account the age of your current unit (as a general rule, systems should be older than 10 years) look for the energy star label to save up to 40 percent on utility bills and consider the minimum seasonal energy efficiency ratio (SEER) specification.

montreal protocol imagechlorine vs oxygen