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Old 10-09-12, 04:29 PM   #27
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Originally Posted by Mikesolar View Post
Like this?

Danfoss Heating - North America

These 24vac motors will drive with any signal. I would think one of the guys could come up with an outdoor reset control that uses the PID control I saw on here. tekmar has one but it is more fun to make it.
That seems to be exactly what I'm looking for! I might be able to drive this directly from the Raspberry Pi's GPIO, with a little protection circuit in between - I'm not sure how they determine direction, since there's only one signal wire. The data sheet doesn't provide much insight, how does one change actuation direction through the input signal?
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diy, flooring, heating, hydronic, radiant

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