Convert R-22 To R-421 No Equipment Change!

In today’s society, things change at an alarming rate. Make sure your HVAC professional is up to date on the new technology. Your HVAC system is a big investment, If you allow under trained technicians to work on it, it could cost you a lot.
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R-22 price
Air Conditioning
Heating & Cooling

• Hvac

Hollister - Missouri - US

Feb. 11, 2013 - PRLog -- As a member of Air Conditioner Contractors of America (ACCA), The Refrigeration Service Engineers Society (RSES), and other industry organizations. As well as being the only technician in the Branson, MO area that has a North American Technical Excellence (N.A.T.E.) certification. He also has written articles and blogs, both for his colleagues and home owners alike, Tony Martin of Allied Air Heating and Cooling is the authority for the HVAC industry in the Branson, MO area. Tony has trained and tests other professionals in the industry on, EPA section 608 that covers the law and procedures for handling all refrigerants, for many years. Now he is training others on the correct procedures for converting your existing A/C equipment from the R-22 refrigerant to the new drop in replacement, R-421. With the price of R-22 sky rocketing, more and more people are switching to the new environmentally friendly and more energy efficient R-410a refrigerant. For many however, the cost of new equipment is not in the budget. Tony tells us, “Finally there is a cost effective solution for keeping your existing equipment while changing your refrigerant to a good, safe, and eco-friendly substance that does as well if not better than R-22.”  We asked him how to choose a technician to do this conversion properly? He said “Don’t be afraid to ask to see his EPA card and other credentials. Make him explain what all is involved. Ask for references, and then check the references. And last ask for the price before the work starts. If he can’t give you a price before the work is started, then he does not know how to charge your unit correctly.”

What you should hear from a qualified technician:    

·        It starts by a full recovery of the R-22 that is in the system for disposal (30 to 60 min.)

·        Followed by a nitrogen charge and leak test (minimum 30 min.)

·        If leak is found, repair and repeat leak test

·        Flush the line- set and evaporator coil with nitrogen

·        Flush the same with RX11 line flush kit

·        Repeat nitrogen flush

·        Do the same for the condenser ( from low side to high side as not to lose the oil)

·        Replace or add the correct size liquid line filter/dryer

·        Charge with minimum 75psig maximum 125psig for leak test (30 min.)

·        If leak is found, repair and repeat leak test

·        421 does requier  a vacuum  of 500 microns held for at least 5 minutes is mandatory

·        Charge with 421 using the equipment manufactures charge table

·        Add the prescribed charge for the length of line-set.

·        Start system and operate for 20 minutes

·        Calculate and check for the prescribed sub-cool and superheat readings  

·        Adjust as necessary to achieve required levels
Source:Allied Air Heating ans Cooling
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Tags:R-22 price, Air Conditioning, Heating & Cooling, HVAC
Location:Hollister - Missouri - United States
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