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    patter8222's Avatar
    patter8222 Posts: 1, Reputation: 1
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    #1

    Apr 1, 2012, 01:41 PM
    Replace lennox 1dacb48-5p with r410a unit
    Can I replace lennox air r22 to r410a with any unit
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Apr 2, 2012, 05:47 AM
    No. The refrigerants are of different composition and use different lubricating oils. Not saying it cannot be done but the trouble is not worth it. The indoor coil for R-410A is also much larger to get the energy rate so it would be a looser all the way around. Get a matched coil for indoor and a quality unit for outdoor. Also replace the copper line set. NOTE: There are a few company's that are still making R-22 units for replacement only. They do not come charged with refrigerant. Contact a local qualified/knowledgeable contractor for more info.
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