Honeywell Humidifier on Trane XL80 - http://www.hvacmechanic.com/ Forums

Original message

kefxb24

63.80.251.75

"Honeywell Humidifier on Trane XL80" , posted Mon 19 Jan 12:19

Just installed a Honeywell HE360 humidifier on the upflow plenum exiting a Trane TUD120R954H3 furnace. Now on to the wiring part.

Looks like the Trane provides a 120vac circuit for connection to a humidifier. I assume that this circuit is switched to operate only when the furnace fan is running. Please confirm or correct this assumption.

If the 120vac HUM circuit is switched, my plan is the following. Please advise if this is sound.

1. Connect 120v HUM wires from Trane to a standard three-pronged outlet on the outside of the furnace jacket.
2. Plug Honeywell humidifier into outlet described above.
3. Since the two yellow wires on the Honeywell humidifier provide 24vac, run two 22awg wires to the provided Honeywell H908A humidistat installed into return duct.

Thank you for your help.

Replies:

xenos
Webmaster

67.71.22.117

"Re(1):Honeywell Humidifier on Trane XL80" , posted Mon 19 Jan 18:02

Sounds sound:) just verify the rated curent the Hum terminal is rated at 1 amp.

Xenos.

The best way to escape a problem is to solve it.

kefxb24

63.80.251.75

"Re(2):Honeywell Humidifier on Trane XL80" , posted Tue 20 Jan 15:15

The water line is in and the wiring is working.

I might have a solenoid valve issue, as no water is making it to the distribution tray. The supply line is filled to the valve. Although I can hear the valve actuate, it is only putting out about one drip per second, not enough to make it up the feed tube.

Any thoughts on troubleshooting and/or adjusting the valve output?

Thank you very much.

xenos
Webmaster

64.230.163.65

"Re(3):Honeywell Humidifier on Trane XL80" , posted Tue 20 Jan 19:58

If your on a well you may need to increase the restrictor size as its designed for 60Lbs water pressure.

Xenos.

The best way to escape a problem is to solve it.

kefxb24

63.80.251.75

"Replaced restrictor screen" , posted Wed 21 Jan 09:43

On city water will enough pressure.

Spent an hour taking apart the water valve. Even though this was new unit, it sat in the box for a few years before I got around to installing it. The screen on the water input side of the valve seemed to be causing the problem. Cleaned it with a little water and air, and we were good to go.

Thank you very, very much for such excellent advice and support. This is the best advice site I have ever found - really!

peewee27

65.247.90.59

"Re(1):Replaced restrictor screen" , posted Thu 1 Feb 13:06

quote:
On city water will enough pressure.Spent an hour taking apart the water valve. Even though this was new unit, it sat in the box for a few years before I got around to installing it. The screen on ...

I am hoping you could help me.

I am having a problem with my solenoid valve on the HE360 as well. I ordered a new one just in case but haven't opened the package yet. Could you tell me how to remove the 2 black wires that leads from the solenoid to the connector? There are metal contacts on the end of these wires inside the plastic connector. I do not want to cut the wires if I do not have to. Can you disconnect it by inserting a small screwdriver into the plastic connector? I can figure out the rest unless you have some tips. Your help is greatly appreciated!!

dp1

160.33.82.119

"Re(2):Honeywell Humidifier on Trane XL80" , posted Tue 20 Jan 09:23

Shouldn't you also fuse (in this case 1A if the humidifier draws 0.7A max) the 120VAC output from the furnace control board? This will protect the control board if the humidifier goes bad.

kefxb24

63.80.251.75

"That is a good idea" , posted Tue 20 Jan 15:10

Your suggestion is excellent. For a few pennies, you get a lot of protection.

Thanks for the suggestion.