Humidifiers and Dehumidifiers - Old Carrier Furnace and Honeywell HE360A

I have read a lot of posts on here to try to understand how to install this humidifier, but after looking at the wiring on my furnace I don't have a clue how to wire up the 120 vac. My unit is a Carrier Model 40 AQ030330GM Pictures of the wiring are Here: http://share.shutterfly.com/share/received/album.sfly?sid=1IZuGLNyxZPJg&startIndex=0&fid=7b73df1622b195aa Please help!

I am afraid with your electric air handler, there is nothing to wire the humidifier to.

So you are going to need to plug it into a regular out let, and use the sail switch that came with the install kit.

Wire it as seen on Fig 7 of the install manual.

Or this may help out some more.

http://img243.imageshack.us/img243/1521/20081128161954lp4.png

Yellow triangle is the wire nuts.[/QUOTE]

Thanks. I debated on getting the bypass model HE260A instead since it was quite a bit cheaper. Would I be able to wire this model up to something?

From the research I have done on this very helpful forum (I don't know much about this stuff), I believe that you just need to wire up a 24v transformer that I assume controls the silenoid valve for the water. Would this work if I exchange the 360 for the 260?

Thanks for your help!

You can use either, but if you went with the 260, you'll have to get a transformer to drop from 240 volts down to 24 volts.. (transformer that comes with the 260 is 120 volts down to 24 volts).

To make things easier, you can either stay with the 360, or mount the transformer on a 120 volts outlet box near by the air handler.

Looks like you have one near the thing on the floor on photo 2. (http://img399.imageshack.us/img399/6119/20081129104438lm2.png) And, what is that thing?

Your still going to need to use the sail switch.

that box is for the heat pump. I saw in another thread where you said you can use a A50 relay or sail switch. I don't have either yet. which is better? Im not sure if that small outlet box is 120v it doesnt have a plug-in on it.

So either way I need a normal 120v plug in?

Yes, you are going to need a 120v outlet to run the humidifier. If you don't have one near by, then you need to install one.

I have the 120v outlet ran & ready.

What about the sail switch vs. a50 relay? From what I have read, the sail switch may not be as reliable in the long run.

I understand that this relay will work on either 120 or 240 v. Is this true? Does this just clip around one of the wires to the fan?

thanks

Yeah, the A50 will be better, and I didn't say anything saying it can't be used with 220v system.