Get Tech Tips
Subscribe to free tech tips.
Whitt Gwin High-Efficiency Furnace Quiz September 8, 2021, 2:03 pm
Related Tech Tips
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
What is Net Refrigeration Effect (NRE)?
Net refrigeration effect (NRE) is the quantity of heat that each pound of the refrigerant absorbs in the refrigerated space to produce useful cooling. That’s a pretty vague definition. We know that it’s an amount of heat in processes that take place within the evaporator. Still, the phrase “useful cooling” seems rather broad. Even though […]Read more
How to Use a Manufacturer Fan Table and Why They are Important
Many installers and service technicians know how to read and use a manufacturer fan table, but this is a quick review with a few extra tips for newer techs. It’s also a good reminder to senior technicians about how this easy-to-use practice can also be easily abused. At installation, properly setting up airflow is imperative to the […]Read more