I replaced my old thermostat with a lyric. My doorbell transformed was unused and 16 V. I replaced that with a 24 and wired it directly to my lyric. Everything works great.
If I do an additional thermostat in a different zone can I just add more wire to that existing transformer? Will multiple devices on the 24v cause issues?
Thanks
Best Answer
I have run multiple thermostats and even a 24v damper off a single transformer. Most thermostats are very low draw but to make sure look up the power requirements for each and add them together. Now compare that to the transformer wattage/ amperage. If less is needed from the 2 stats than the transformers rated output you are good to go. If the same or more than the transformers output you can get a larger single or another smaller transformer (usually cheaper) and have 1 for each stat.