Humidifiers and Dehumidifiers - Honeywell H360A and Lennox G43UF connections

I am looking for confirmation on how I plan on connecting these two unit via the HUM terminal on the furnace. I just don't want to damage anything. I am planning on mounting a 120vac-24vdc transformer as the HUM terminal is 120 vac (black wire to HUM and white wire to N) and on the 24vdc side run one wire to one of the yellow wires on the humidifier unit. The other side of the 24vdc (transformer) to one of the wires on the humidistat. And then one wire from the humidistat to the other yellow wire on the humidifier. Can someone please confirm this wiring as it doesn't make sense to put 2 24vdc sources in the circuit. It is my understanding that there is already 24vdc from the humidifer unit and then a second source would be from the transformer.
I would like to make it so the humidifier only comes on when the furnace is actually pumping heat out as I have a HRV system on the furnace that runs all the time and I don't want the water running all day.

Thanks

Can I just install a 120vac (coil) relay and use the contacts to connect into the circuit in the same manner as a sail switch

Hey D

Your thinking of connecting the 2-24 vdc is correct. Don't do it as I did this and fried the transformer inside the humidifier. I want to do the same thing and connect my unit to the 120 VAC hum terminal as well. I'm not a electrical expert but thankfully the place I bought it exchanged it.

Unless someone replies back, I'll ask an HVAC guy and post his response.

The best thing to do is wire in a single outlet to the HUM-H on the board. The HUM is 120v, and plug the 360 into that outlet.

Hey Jay

So If I were to wire an outlet to the hum-h connection and then plug the 360 into that outlet then I'm assuming that the humidifier would go on when the furnace is running. Therefore the HUM connection would serve 2 purposes.
1. supply power to the humidifier.
2. Act as the sail switch.
And all I need to do is connect the humidistat directly to the humidifier.

Is this correct?

Thanks

So If I were to wire an outlet to the hum-h connection and then plug the 360 into that outlet then I'm assuming that the humidifier would go on when the furnace is running.

Therefore the HUM connection would serve 2 purposes.
1. supply power to the humidifier.
2. Act as the sail switch.
And all I need to do is connect the humidistat directly to the humidifier.

Is this correct?

Correct. When you do put the outlet in, get the single outlet so that way something else can't get plugged into it.

Thanks for the information. That makes things easy and will do that tonight. I have a HRV system on the furnace and want to run that without the sail switch setting off the humidifier.

Works like a charm. Thanks for the help

Thanks for the update, and glad to hear it's working.