Goodman Furnace, Aprilaire 600a, communicating TSTAT

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Old 01-05-16, 05:56 AM
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Goodman Furnace, Aprilaire 600a, communicating TSTAT

Hello all,

I am hooking up an Aprilaire 600 with automatic control to my Goodman GMVC95 furance. I have a comfortnet communicating thermostat also. After searching the forums and internet, I used my best artistic ability to draw up how I would wire up the humidifier. I need someone to confirm I am on the right track and also where I can land one of my transformer leads that you will see with a question mark in the picasso picture. You will see I left G empty, I will not be running the humidifier with fan control only, just heat so I left it out. If I didn't have the communicating stat, this would have been a lot easier I think. Note: HUM out of the furance is 120V, hence why I have the transformer. Is it ok to wire teh 24V from the R C on the furnace, or should I 110v and transform from external power. Thanks for the help.

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Old 01-05-16, 11:32 AM
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There is a wiring diagram in the book in the link.
http://www.goodmanmfg.com/portals/0/.../ss-gmvc95.pdf

The following diagram is what you'll need to follow. There may be another way using the HUM IN and HUM OUT terminals but I'm not entirely sure.

The brown wire connects from the 12 pin plug on the main control board to one of the pressure switches. You may find a tail at the switch for a connection.

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Old 01-05-16, 11:38 AM
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Thanks, I will give that a shot. I must have been over thinking it.
 
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