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Honeywell M204A modulator valve

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Dan Parker
Dan Parker Member Posts: 1
in Thermostats and Controls
I am looking for a wire diagram for a Honeywell M204A modulator valve. If anyone has one or could point me in the direction to find one that would be great.

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  • carol_3
    carol_3 Member Posts: 397
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    I didn't find an M204 anywhere. Could it possibly be a V2045A? That's the only thing I see at all close. It's a motorized powerhead for a V5045A valve body.
  • bob_50
    bob_50 Member Posts: 306
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    Dan

    this help? bob
  • carol_3
    carol_3 Member Posts: 397
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    Amazing, Bob. Is this thing old?
  • bob_50
    bob_50 Member Posts: 306
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    Carol

    that is from a Honeywell engineering manual from 1954. I started running service in 60 there was still quite a bit of series 10 around then. I don't remember seeing much series 20, I think it was pretty much obsolete by then. bob
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