speadie
February 12, 2021, 9:06pm
2
This device uses T T terminals, not standard 24V logic. you will need an external power supply to run the wyze.
These are your thermostat terminals They are low voltage, but not able to power a smart thermostat.
See the diagrams here for more info:
The wyze gets it’s own power from Rc and C, so technically, if you connected one of the normally switched lines to C, there might be enough juice to power the wyze and the other load, although putting them in series like that might drop the voltage to the point where it doesn’t work quite right. Normally the loads are in parallel, to minimize voltage drop.
For your second question, the wyze has internal circuitry that detects if something is connected to Rh and switches the heating loads to it …
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