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The Sneaky Effects of Radiant Heat Transfer
If you've ever sat close to a bonfire on a really cold night, you may have noticed that your face starts to get really warm. The minute you put your hands up and shield your face from the light of the flame, your face cools off almost immediately. That happens because the flame is heating […]Read more
What is Compressor Volumetric Efficiency?
Simply stated, a compressor’s volumetric efficiency (VE) is a compressor’s ability to pump the most pounds of refrigerant over time. The compressor’s function is right in the name: it compresses gaseous refrigerant. After compression, the gas moves on to the condenser and continues the refrigeration cycle. However, some of the refrigerant vapor that enters the […]Read more
Why Measuring Static First Isn't Always Productive
There is a big move in residential and light commercial HVAC toward measuring static pressure regularly during commissioning, service and maintenance. And don't get me wrong Measuring static pressure is VERY important The challenge comes in when techs begin taking measurements without understanding where to take them, what they mean, or worse… they use measurements […]Read more