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Refrigeration Basics Quiz July 5, 2021, 1:31 am
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What the Heck is a Friction Rate?
Friction rate is a value located on a ductulator. We use it during the design phase of a duct system to predict the operating static pressure of a duct system. The challenge with friction rate is that it is often misapplied by folks using a rule of thumb (ROT). In order to apply friction rate properly, […]Read more
What is a GFI?
First off, the correct acronym for a GFI (ground fault interrupter) is a GFCI (ground fault circuit interrupter). The purpose is to act as a safety device to protect from electrical shock. GFCIs can be built into outlets, circuit breakers, and even extension cords and are generally used for safety in wet environments like bathrooms, […]Read more
Refrigerant Oil Basics
First, a quick summary of the role of oil in the refrigerant circuit: The compressor requires oil for the lubrication of the moving parts in the compressor. If we could, we would keep 100% of the oil in the compressor, but since that is generally unrealistic, we need to utilize oils and oil strategies that […]Read more