Author Topic: I need Electric Help... Any electricians out there?  (Read 24044 times)

Offline ExGingi

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Re: I need Electric Help... Any electricians out there?
« Reply #345 on: Yesterday at 01:32:13 AM »
You quoted the switch question and responded with: My only fear is running 110V rather than 24V.
Either way we are good and just blame me as usual.  ;)

You are right. I missed that. I confused myself by asking two questions concurrently. My bad.
I've been waiting over 5 years with bated breath for someone to say that!
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Offline ExGingi

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Re: I need Electric Help... Any electricians out there?
« Reply #346 on: Yesterday at 01:32:58 AM »
Doesn't C wire supply constant power?

That is what I always thought. But some online reading seems to indicate otherwise.
I've been waiting over 5 years with bated breath for someone to say that!
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Offline CountValentine

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Re: I need Electric Help... Any electricians out there?
« Reply #347 on: Yesterday at 10:00:30 AM »
Where did this quote come from?

Quote
Yellow/Y is the AC compressor.
White/W is the Heating element
Green/G runs the fan.
Blue or Black/C should be a ground and will be used by both Rh and Rc, and apparently your thermostat.
You're so far up Trump's a** you can see Giuliani's feet.  HT Baruch

Offline ExGingi

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Re: I need Electric Help... Any electricians out there?
« Reply #348 on: Yesterday at 10:26:22 AM »
Where did this quote come from?

Comments at:

https://smartthermostatguide.com/thermostat-c-wire-explained/

From what I gather Rc is 24VAC for cooling, RH is 24VAC for heating. Circuit can bet closed with either of Y, W, or G, for AC compressor, heating, or fan (respectively) the C wire allows for a closed circuit and powering the Thermostat even when none of those are running.
I've been waiting over 5 years with bated breath for someone to say that!
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Offline CountValentine

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Re: I need Electric Help... Any electricians out there?
« Reply #349 on: Yesterday at 10:58:13 AM »
Comments at:

From what I gather Rc is 24VAC for cooling, RH is 24VAC for heating. Circuit can bet closed with either of Y, W, or G, for AC compressor, heating, or fan (respectively) the C wire allows for a closed circuit and powering the Thermostat even when none of those are running.
This gets confusing. There is no ground in this circuit. So to your earlier question you just can't use a ground.
The transformer used to supply the 24V is an isolation transformer (pretty much the standard now). It is used to isolate it from the 110V circuit.
This diagram lays it all out. If you want to get into it I can explain it.  :)
https://i.stack.imgur.com/QeZbQ.png
« Last Edit: Yesterday at 11:01:20 AM by CountValentine »
You're so far up Trump's a** you can see Giuliani's feet.  HT Baruch