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    joseito's Avatar
    joseito Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 13, 2007, 05:28 PM
    r-503
    Hi friends, I want to know about the retrofit of r-503, in cascade system
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jan 17, 2007, 04:29 AM
    You are in the wrong place for that professional question. Sorry but the retro fit of any refrigerant is complex. Look at the honeywell/gentron web site for that kind of information.
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