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HVAC/R Evacuation Quiz May 18, 2023, 1:56 am
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What's the scoop on PM10 and PM2.5 Particles?
MATLAB Handle Graphics It was December 5th, 1952, only seven years after the end of WWII in London, England, when the “great smog” settled across the city. The “great smog” was the result of a meteorological anomaly combined with unchecked industrial pollution. Still, even once it settled on the city, bringing business to a screeching […]Read more
Thoughtful Termination (Of Wires)
When you are checking a unit of any kind, you should be keeping your eyes open for signs of arcing and melting at all of your wire connections and contact points. We find issues with melting terminals on contactors and in disconnects regularly. Still, We rarely think about the relationship between circuit ampacity, wire size, […]Read more
Defrost Time & Temperature
The most common method to defrost appropriately in refrigeration involves both time for initiation and a combination of time and temperature for defrost termination (ending defrost). But why can't we just use temperature or time alone? (You may wonder.) Imagine a common freezer with a designed box temperature of -10°F and a coil temperature of […]Read more