Need help wiring 24v transformer with whole house humidifier

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Old 12-24-09, 11:21 AM
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Need help wiring 24v transformer with whole house humidifier

Hi, everyone. I'm new at this, and I have the entire humidifier, water, etc. set. However, I cannot figure out how to wire the transformer properly. The wiring that was provided with the package is bound together (black and white wires). The transformer's lead wires are connected to the furnace blower as instructed. However, the "front" part of the transformer is what I don't understand. It has two screws - one for 12VA and one for 24V.

Because the wiring is bound together, and I know not to normally cross black and white wires, I'm a bit lost at this point. The main humidifier unit has two solid blue 24V cords. The humidistat has one black and one blue.

ANY help would be appreciated. Hope I described it well.

Thanks!
 
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Old 12-26-09, 08:58 PM
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Originally Posted by devzin98 View Post
The transformer's lead wires are connected to the furnace blower as instructed.
You piggy back the wire on the blower??

It has two screws - one for 12VA and one for 24V.
12VA is 12 volt Amps. 24 is voltage.. It nothing to worry about, you can wire to the screw either way.

With low voltage set up, "hot" and "common" is not as important as a home electronics.

so for your set up, ignore the HUM and Com, those will eb your two screws on the transformer.

 
 

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