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When we say that there is “flash gas” at a particular point in the system, it can either be a bad thing or a good thing, depending on where it is occurring.
Flash gas is just another term for boiling.
It is perfectly normal (and required) that refrigerant “flashes” or begins boiling directly after the metering device and as ...
Take a look at the specs from this Copeland scroll compressor pulled from the Copeland Mobile App (which is an incredible app, by the way).
These specs are for a single-phase compressor, so the amperages listed are based on an amperage reading from the wire connected to the common terminal.
LRA is the locked rotor amperage, which is the expected measurab...
This article is not a full lesson on making a flare, but it will give you some best practices to make a flare that doesn't leak.
First off, we need to clarify that very few unitary manufacturers use flares anymore. You will most often find flares on ductless and VRF/VRV systems and in refrigeration. A flare uses a flared female cone that's formed into tubing (u...
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 screech...
I was fresh out of school, working as an apprentice at my first real HVAC job, and I was listening in on a shop conversation between a few techs.
They were talking about finding so many overcharged systems. One of the techs turns to me and says, “I had a unit yesterday that was so overcharged it was running minus five degrees of superheat.” I don't remember EXA...