Times Square Irish Gastropub, The Long Room is located in the heart of New York City’s Times Square. 50 Beers by the bottle, The Long Room is one of New York City’s Best Beer Bars. Hi Im a new service tech and was talking with my instructors about delta temps. One instructor said that I you always want a 30 degree delta across the condenser and a 20 degree delta across the coil. I maybe average a 20 degree delta across the condenser and a 15 degree delta across the coil.
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For the evaporator you want at least 15 TD but 20TD is best. And that TD really depends on humidity factors. Condenser coil TD really is not that important. Sub cool is the most import factor.