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Matthew, HVAC Technician
Category: HVAC
Satisfied Customers: 2014
Experience:  14 years experience in the HVAC field of service, installation, Manual J & D calculations
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Where on my Goodman GMV95 Furnace do I wire in an Aprilaire

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Where on my Goodman GMV95 Furnace do I wire in an Aprilaire Humidifier, with the Humidifier control mounted on the Living room Wall for Manual adjustments, as the outside Temperature changes?
Do you have a transformer for the humidifier?
Customer: replied 7 years ago.
Yes is that required?
either way doesn't matter better if you have a separate transformer for the humidifier though. One last question then an answer. what model humidifier do you have and are you using the humidistat that came with it or something else?

Edited by Matthew on 1/2/2010 at 8:51 PM EST
Customer: replied 7 years ago.

Aprilaire Model 500M and if the humidistat is the Manual Humidifer Control, Yes it came with the unit.

ok here you go.

If this humidistat is digital this is not the same so if it is let me know.


one wire from the solenoid goes to one wire on the humdistat


Other wire from solenoid goes to one side of the supplied 24v trasformer


Other wire from humidistat goes to other side of the 24v transformer


Then the high voltage black and white leads of the supplied humidistat


white wire goes to one of the unused Neutral spade terminals ont he control board


Black wire goes to the "HUM" spade terminal just to the left of this bank of nuetral terminals.

Edited by Matthew on 1/2/2010 at 9:02 PM EST
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Customer: replied 7 years ago.

The Manual Humidifier Control didn't come with high voltage black and white leads There is only 2 terminals That I wired with Thermostat wire.

sorry I mistyped that I meant the transformer supplied with the humidifier not the humidistat.
Customer: replied 7 years ago.
Thank You