This may sound stupid as I've been owning my own home for 42 years now and I've never actually had to deal with the low voltage power 24 VAC
I know that I use 24 VAC (nominal it actually measures 27.6 at my thermostat) for my two Thermostats (upstairs and downstairs) and the doorbell.
I think there is one transformer I see screwed to a stud up in my attic with an AC switch next to it.
Is this likely that one transformer provides 24VAC to all my thermostats and doorbell system?
Or does each AC/Heating unit have its own 24 VAC source?
I'm finally installing a Nest Thermostat and was trying to figure out the easiest way to turn off the power to the thermostat. I don't think just turning off the AC system breakers will kill the 24 V, if its its not normally provided by the AC, is it?
I know that I use 24 VAC (nominal it actually measures 27.6 at my thermostat) for my two Thermostats (upstairs and downstairs) and the doorbell.
I think there is one transformer I see screwed to a stud up in my attic with an AC switch next to it.
Is this likely that one transformer provides 24VAC to all my thermostats and doorbell system?
Or does each AC/Heating unit have its own 24 VAC source?
I'm finally installing a Nest Thermostat and was trying to figure out the easiest way to turn off the power to the thermostat. I don't think just turning off the AC system breakers will kill the 24 V, if its its not normally provided by the AC, is it?
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