Whether you’re a business owner or want to create an HVAC education program, you’re going to need to create an identity for your organization and put it out there. That’s called “branding” or “creating a brand.” Nowadays, we hear the term “brand” thrown around quite often with influencers and large corporations. As such, the word […]

Relays can be used for many different control applications, including controlling fans, blowers, other relays, or contactors, valves, dampers, pumps, and much more. A 90-340 is a very common, versatile relay that many techs have on their truck. So, we will use it as an example. A relay is just a remotely controlled switch that […]

In a series circuit (loads connected in a row end to end), it's easy to calculate total circuit resistance because you simply add up all the resistances to get the total. In a parallel circuit, the voltage is the same across all the loads; the amperage is simply added up, but the resistance is a […]