When you first start checking your supply air with a thermo-hygrometer, you may notice that the relative humidity is REALLY HIGH. Often, the RH in a supply duct will be between 85% and 96% relative humidity on a system that is functioning as designed. The reason for this is fairly simple: In order for dehumidification […]

The most common diagnosis with expansion valves is failed closed or restricted, resulting in underfeeding of the evaporator. The symptoms are low suction, normal subcooling, and high superheat when a TXV fails “shut,” but there are some other issues to watch for that can actually result in overfeeding the coil. Schrader in the Port The […]

WARNING: THIS ARTICLE IS FULL OF CHEESY SPORTS REFERNCES – I UNDERSTAND IF YOU PASS ON THIS ONE, BUT PLEASE REFRAIN FROM SENDING THE REPLY EMAIL ABOUT WHY SPORTS OR STUPID OR WHY YOU DON'T WATCH THE NFL ANYMORE…. I GET IT… IT'S ALL GOOD  I really like an underdog story. I live for stories […]