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Thread: R290 as replacement of R404a
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30-04-2015, 07:22 PM #12
Re: R290 as replacement of R404a
having had a lucky escape from a call out i went to were cowboys had filled a r134a system with r290 without telling anyone or even labeling the unit up as a flammable gas i would say stick with r404a as long as possible because when that stuff goes up it really goes up