Direct expansion coils (usually shortened to DX coils) are everywhere in HVAC and process cooling, yet they’re often treated as a default choice rather than a deliberate one. They show up in rooftop units, split systems, air handlers, and countless packaged solutions. Because they’re so common, it’s easy to assume they’re always the right answer. […]
https://www.moneyunder30.com/pros-and-cons-of-dx-coils/
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