HVAC Transformer
So the way this works, you can see there's a lot of, a lot of numbers and words written here on this transformer, and this tells you what you need to know. I have this board operating off of a 1 10, 1 20 outlet. So when I wired this transformer in, I used the 120 volt. Side of this, which was the black wire.
So you can see I've got the black wire here, and then our whites are common. If I were running this off of 2 0 8, I would use the red wire, which is up here. If I were running this off of two 40, I would use the orange wire. Okay. So I'm not using those. So they are up here, tucked away. I'm using the one 20 because I'm operating this off of a standard.
One 20 outlet. Now the blue and yellow are your 24 volt wires, so that's how our transformer is stepping down. The one 20 to the 24 volt. Uh, we've got wired in a little circuit breaker here just in case we do something wrong out here. This will pop and then we can always reset it, but this supplies power.
To our terminal block, and this then goes into our thermostat. Um, so that's how we're powering our 24 volt is this transformer. Transformers can go bad, just like a lot of other electrical components. Uh, there could be absolutely nothing wrong and it could just go bad, um, due to just, just normal use.
However, it can also go bad due to, um, temperature settings, coils, if it demands power all the time. If lightning strikes, uh, just, you know, a lot of typical electrical current issues, uh, can cause transformers to go bad. So this is something that, while it's not necessarily, um. Something that does happen all the time.
It is something that can happen. Transformers can go bad, uh, but you would just swap it out, plug and play. Uh, use the same wires. If you're doing HVAC, you're, you're gonna be using your white and your orange wire for your 240 volts. Um, but again, for this instance, I've got it step down to one 20. Um, but that is the purpose of your transformer.
Uh, it does offer the high voltage, but then steps it down to 24 volts.
