Trane xc95m, Trane XL 1050 and GeneralAire flow through humidifier

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Old 02-14-21, 03:35 PM
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Trane xc95m, Trane XL 1050 and GeneralAire flow through humidifier

Furnace and tstat are set up in communicating mode. This means that the W1 wire is no longer connected to the tstat and as such not available to provide the 24vac that my humidifier solenoid requires to open. I am not sure how to hook all of this up such that the humidifier solenoid opens when the furnace is running. Any ideas on wiring would be great. Current connections on the board are in the attached picture.

Current connections. Communicating tstat hooked up like this.

Old connections, non-communicating mode with nest tstat. Humidifier was hooked to w1 and b/c.


Thanks
 
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Old 02-22-21, 10:50 AM
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Welcome to the forums.

Sorry for the delay.
Please post the model/part number off the control board for me.
 
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Old 02-24-21, 04:52 PM
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Does this picture help.


 
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Old 02-24-21, 05:38 PM
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I cannot find a answer.

Take a flashlight and look completely over your board. We're looking for a slide on terminal labeled HUM. It will look just like the terminals used for line, neutral, etc.


If you don't find it..... look for the 4" metal junction box where the main power enters the furnace.
Turn the power off and remove that cover. See if there are unconnected wires in there.
There may be one labeled HUM and one EAC.

If not..... post the model number of the furnace. It'll be near the burner on the side wall.
 
 

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