Arkansas HVACR NewsMagazine March 2022

HVACR NewsMagazine March 2022

Tech News

Low-Voltage Wiring for Heat Pumps Emily Gutowski HVAC https://hvacrschool.com/low- voltage-wiring-for-heat-pumps/ Time and time again, low-voltage wiring gets the better of HVAC technicians everywhere. Sure, the wires are color-coded, but that doesn't mean they're easy to understand. On top of that, schematics sometimes look like ancient tablets written in hieroglyphics or something. But that's where HVAC School comes in. There is a new 3D animation video on the YouTube channel showing how the low-voltage electrical circuit works and how it's wired. You can watch it below, but we're also going to go over the same information in this article.

to go over the same information in this article. Before we can begin to understand low-voltage wiring, we have to know how to read the wiring diagrams and understand what each component type does. Schematics show how components are connected and whether connections are normally open or normally closed. These connections are at switches, which are power- passing devices that don't consume power but merely allow it to move. Normally open switches do not allow electricity to flow through, as the circuit is incomplete. A normally closed switch would allow electricity to flow because there is Switches and contacts

Brushing up on basics