HVAC/R Evacuation Quiz June 27, 2021, 6:08 am

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What are Dry and Wet Contacts?
I was talking about dry contacts with one of my techs, and he looked at me like I had three heads—and one of them was on fire. So, I figured it would be good to cover the difference between wet and dry contacts in a tech tip. Basically, “dry” contacts are switches with no shared […]
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Pressure / Enthalpy Diagram Example
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Diffuser Placement is Important
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