Seven models of the universal TR6 thermostatic expansion valve cover OEM air conditioner and heat pump designs in a wide range of applications, from 1.5 to 6 tons in R-22 and R-410A systems. According ...
No longer just a dire prediction, budget-breaking energy costs have arrived in the United States, long fortunate to have among the world’s very lowest utility costs. Though the winter of 2007-08 was ...
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