Hi everyone,

Newbie here that's never done any HVAC work other than replacing a furnace air filter

I'm trying to install a Honeywell HE220 (with installation kit) onto my Amana AMS9 furnace. I'm not sure that it makes any difference in this situation but the furnace also has an Aprilaire model 6203 zone control system installed and the house has two thermostats/zones hooked up to that.

So far I have hooked up the humidifier to the return duct and the bypass to the warm air duct but that's where I stopped. I was reading the instructions and it wanted me to hook up a sail switch and transformer and then wire the whole shebang to a plug and plug that into an outlet. However, based on what I've been reading in this forum, it seems as though I may not need to do all that.

I read this thread which gives me a lot of help but I waned to ask a few clarifying questions:

1.) There are two black wires coming from the selnoid on the humidifier. One should go to one wire on the humidistat and the other should go to the C connection inside the furnace (or should it go to the equipment output C connection on the zone control?)

2.) Where does the other wire from the humidistat go on my furnace?

Thanks for any help you can lend!!

 

I just had another thought...

Each zone has a Ritetemp 8082c thermostat with the following wires hooked up:

red -> RH and a jumper to RC
white -> W
green -> G
yellow -> Y
blue -> nothing

... and at the zone control the other end of those wires go to...

red -> R
white -> W
green -> G
yellow -> Y
blue -> nothing

Is there any way I could use one or both of the thermostats to control the humidity rather than relying on the humidistat that came with the installation kit?

Thanks again for any help you can lend!!

 

Yeah I was wondering about that too. I've got the Ritetemp with the Humidity control built -in. I'm hoping we can make use of that instead of the seperate humidistat. If I find anything out I'll post it.

 

Found this info on the 8082c...

Yes, you can control humidity by using a Ritetemp thermostat equipped with a built in humidistat (models 8082C and 8085C).
If you have an existing humidifier, with an external humidistat, and wish it to be active only when the thermostat is switched to HEAT, connect the power wire (R) from your humidistat to the B terminal of the thermostat.

When the mode switch is put in HEAT, the B terminal is powered from the RH terminal, which will power the external humidistat. The humidistat will then operate independent of the thermostat settings. When the thermostat is switched to OFF or COOL, the external humidistat will be off.

If you wish the external humidistat to be active only when the heat is running, connect its power terminal to W instead of B.

If you wish the external humidistat to be always active, connect its power terminal to RH instead of B or W. It will then operate independent of the thermostats mode switch.

 

Hmmm.. but what if you were hoping not to use the external humidistat whatsoever? Is there an option to use only the 8082c thermostat and no humidistat?

 

Yes, You can use that t-stat's humidistat to control your humidity... How ever, if there is no call for heat, the humidifier is going to be running... So you will have to use the A50 relay or Sail switch to turn on the humidifier when the furnace blower is running.

 

Okay forget using the 8082cs then... I really don't want to use a sail switch or an A50 relay as that's just something more to go wrong (especially the sail switch.)

Any thoughts on my original post to this thread?

Thanks

 

By any chance you have C at T-stat, and Zone control? If you do have a C wire it up, and you won't have to depend on the battery to run the t-stat as much.

 

On the zone control there is a C for each zone but it says "damper" next to it. Can I tap into it or would it only get power when the damper is opening/closing? Never mind... I just read the back of the zone control panel and it shows an optional connection from the C to the thermostat, so that is what I'll do. Thanks for the idea!!

As far as the wiring for my humidifer goes...

There are two black wires coming from the selnoid on the humidifier. From what I can tell, one should go to one wire on the humidistat and the other should go to the C connection inside the furnace.

What I can't seem to figure out is where should the other wire from the humidistat go on my furnace?

Thanks!

 

What is the make/model of the furnace?

 

It's an Amana AMS9

 

I ended up connecting the other humidistat wire to the COM connection on the pressure switch and that did the trick. It turns on AND off :-)

Two last questions though:

1.) The COM connection on the pressue switch has a flat "male" connector and the wire has a "female" connector. My wire was jut a wire so I ended up using electrical tape to connect the two. I'm sure this won't last for very long. Is there some sort of "Y" connector that I can buy and if so, what is the name?

2.) As I didn't use the sail switch I have three leftover parts: a sail switch and a transformer and a plug. Any takers? Jay11J I'll ship them to you if you give me an address... a little thank you from all of us that rely on your expertise each day!!

 

1/4" wire spade. You can find them in hardware store or home center in electrical dept.

Thanks for the offer on the parts, but I have no need for them.. Throw them on E-Bay, I am sure someone would buy them off your hands.