doorbell parts section below for more information). The red wire shown in the diagrams can connect to either terminal of the transformer and push button ( ref.
The output side of the transformer doesn’t have positive and negative terminals. Either terminal of the push button can be mounted to the red or white wires shown in the diagram ( ref. Doorbell push buttons don’t have a positive and negative. These are just the products we chose to work with, but the provided wiring diagrams and in-depth description of parts are universal and should apply to all brands of low-voltage wired combination doorbells. To put it in parallel, I can connect 2 and 6 (matching the polarity dots) and then 1 and 5 and on the output I can look at it and go through the same decision making process.The following doorbell wiring information focuses on combination doorbells (front and rear chime in a combined unit) and uses Broan-Nutone, more specifically the NuTone doorbell parts as reference. And in this schematic I can look at it, identify the polarity dots, and realize that to put this in series, I can connect 2 and 5. Make sure you're buying the right equipment.Ģ) Jump in and look at the schematic. For this example, I needed 12 volts out of this and so I got the VPS24 because I knew that I could configure the output in parallel to get 12 volts. Now that we've briefly discussed the theory, let's actually go over these steps on how you should do this.ġ) Figure out what you want to do with your transformer before you buy it - make sure it is what you want. And once you take your time and do all of that, you should be fine. You need to get the incoming voltage correct, the outgoing voltage correct, that you get the association between the schematic and the actual, physical transformer correct. This may seem self-evident, but it's more a matter of not messing up a series of simple steps. The hardest thing about all of this is making sure that you do it right. 
In this case 7 and 11 and 8 and 12 hooked up together so that I'm getting 12 volts out. And then because this is a VPS24 and we want 12 volts out of it, not 24 volts, I have the output in parallel as well.
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