Want Blower to Activate Humidifier

[Rastaman190e]

Hello All: New to the community. And am hoping to get a bit of help with the following problem: I recently had a carrier HUMCCLBP installed. It is linked to a carrier furnace/airconditioner (not sure of this) combo unit. Everything works fine but the humidifier only comes on when the furnace lights up but I want the humidifier to come on when the blower fan comes on. My sense, from reading the replies on this topic, is that this can be done. So my question is how? How can I, a newby but fairly confident with a multimeter, etc, get this done?
Picasa Web Albums - Corie - Untitled Album
Picasa Web Albums - Corie - Untitled Album
Picasa Web Albums - Corie - Untitled Album
Picasa Web Albums - Corie - Untitled Album
Picasa Web Albums - Corie - Untitled Album

PS: that brown wire that is most anterior in the pictures comes from the humidifier's humidistat, in care you are wondering.

Oh yea, even though I am confident with a multimeter you probably want to outline how I am going to do this as if you are talking to a 6 year old --cuts down on confusion. Go ahead, my ego can handle it.

Thanks for your help.

[Jay11J]

Originally Posted by Rastaman190e

Everything works fine but the humidifier only comes on when the furnace lights up but I want the humidifier to come on when the blower fan comes on.

Why do you want it to come on with the blower? Do you run the fan only all the time, and want to run the humidifier with the blower?

I've tried it in the past to see if it did much or not.. I saw it did not do much with fan only, and more water was wasted.. So I end up switching my control to only come on with the call of heat.

My sense, from reading the replies on this topic, is that this can be done. So my question is how?

It could be done, but you are going to need to get a step down transformer to make it work.

[Rastaman190e]

Originally Posted by Jay11J

Why do you want it to come on with the blower? Do you run the fan only all the time, and want to run the humidifier with the blower?.

We do run the fan only most of the time to circulate the air.

Originally Posted by Jay11J

I've tried it in the past to see if it did much or not.. I saw it did not do much with fan only, and more water was wasted.. So I end up switching my control to only come on with the call of heat.

I read where you had said this already but I still wanna give it a try to see how it turns out. Right now, our furnace hardly comes on as our home is buttoned down really tight and there is little heat loss to the sorrounding.

Originally Posted by Jay11J

It could be done, but you are going to need to get a step down transformer to make it work.

what is this? where do I get one, and how difficullt is it to wire up? The other option I heard about is to get a pressure sensing switch or something that senses the change in pressure in the inlet to the humdifiier and uses this change to activate the humidifier. Does this sound right?

Thanks for your reply.

[Jay11J]

Originally Posted by Rastaman190e

Right now, our furnace hardly comes on as our home is buttoned down really tight and there is little heat loss to the sorroundinurg.

The furnace comes on for short a short time?
Give me the details of your home, make and model of the furnace and t-stat.

what is this? where do I get one, and how difficullt is it to wire up?

Transformer is a unit that drops the voltage from 120 volts down to 24 volts. You can get them anywhere, and you can get them with the door bells at a home center/hardware stores.

For your furnace, you wire it to EAC1 and EAC2. Then move the humidifier low voltage from HUM and C to the R and C on the transformer.

The other option I heard about is to get a pressure sensing switch or something that senses the change in pressure in the inlet to the humdifiier and uses this change to activate the humidifier. Does this sound right?

You could do this,. but you don't need it. The EAC will power on and off with the blower... If you didn't wire the transformer to EAC, and to a steady power, then yes, those switches above will be needed.

[Rastaman190e]

Jay:

Thanks for responding and for your help.

Home: 2100 sq feet, approx 3 yrs old, situated close to Boston, MA. Thermostat: Honeywell TH8110U1003 Vision Pro Digital Thermostat: with fan set to recirculate and running the built in full week program for greatest energy efficiency.

This picture shows the both the product and model number for my funance, me thinks: Picasa Web Albums - Corie - Untitled Album.

It is branded as Carrier Comfort 92 and the product and model numbers seem to be: product: 58MXA080-F-17112/model: 58MXA080-12. And the humidifier is also a Carrier--see below for model info.


I found this: Honeywell AT72D1006 Step Down Transformer. Is this what you had in mind as a step down transformer


Thanks.

[Jay11J]

Originally Posted by Rastaman190e

Thermostat: Honeywell TH8110U1003 Vision Pro Digital Thermostat:

What is "Installer Set up" #240 set to?

I found this: Honeywell AT72D1006 Step Down Transformer. Is this what you had in mind as a step down transformer

Yes, that will work. Nice thing about this, you can mount a metal box, and mount this in place.

[Rastaman190e]

Jay: not home right now, travelling, but will check this and get back to you in a few days. thanks.

[Jay11J]

Allright, sounds good.. Have a safe trip!

[Rastaman190e]

Jay:

function 240 was set to 5 but changed it to 3 after reading some of your earlier posts. Is that what you had in mind?

Thanks,

[Jay11J]

Yes, 3 is going to give the furnace a longer run time, and will allow the humidifer to have more hot air to do it's job.

[Rastaman190e]

Originally Posted by Jay11J

Yes, 3 is going to give the furnace a longer run time, and will allow the humidifer to have more hot air to do it's job.

Jay/Moderator:

Winter returns to the Northeast once again and having to turn on the heat returns this issue to the forefront. Just bought this,

Picasa Web Albums - Corie - Step down

my step down transformer and am asking for explicit instruction of what to connect to where, exactly.

Thanks much for your help.

[Jay11J]

Welcome back!

Did you get the Honeywell AT72D1006 transformer?

I'll try to draw it up soon as I can, it may be a few days before I have a chance to do it.

[Rastaman190e]

Originally Posted by Jay11J

Welcome back!

Did you get the Honeywell AT72D1006 transformer?

I'll try to draw it up soon as I can, it may be a few days before I have a chance to do it.

Thanks for responding. No, i got one from a company called RIB, the model # is TR50VA005, if this helps. No need for a drawing. I have four wires: black, white, yellow, and a yellow white candy stripe. I just need to know which one goes to which connector on the furnace and on the humidifier. Thanks much,

[Jay11J]

Ok, Black goes to EAC1. White goes to EAC2.

Yellow goes to the humidistat

Otherside of humidifier wires to Yellow/white

[Rastaman190e]

Originally Posted by Jay11J

Ok, Black goes to EAC1. White goes to EAC2.

Yellow goes to the humidistat

Otherside of humidifier wires to Yellow/white

Done!! Pain free. Thanks to jay for his selfless help. Thanks much,

[Jay11J]

Originally Posted by Rastaman190e

Done!! Pain free. Thanks to jay for his selfless help. Thanks much,

Glad to hear it was pain free. I'm happy to help out here.