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    nadeem.usmani's Avatar
    nadeem.usmani Posts: 1, Reputation: 1
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    #1

    Dec 20, 2009, 08:46 AM
    Why we use R134a in Transportat air conditioning
    Why We use R134a in car air conditioning and in domestic refrigerators an freezers
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Dec 20, 2009, 08:49 AM
    R-134 was a replacement refrigerant for R-12. It was felt that R-12 was more damaging to our atmosphere of planet earth so the change was made.
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