Image source: IO HVAC Controls In any electrical circuit, a relay acts as a switch to open or close the circuit using an electric current. In the HVAC world, the same principle is applied to …
Official Guide to Everything About Smart Home Automation
Image source: IO HVAC Controls In any electrical circuit, a relay acts as a switch to open or close the circuit using an electric current. In the HVAC world, the same principle is applied to …
