Return to the Heating & Air Conditioning Forum | Post a Follow-Up

o
Another IAQ/Humidifier/Furnace setup question

clip this post email this post what is this?
see most clipped and recent clippings
Posted by jdougjo (My Page) on
Thu, Apr 7, 11 at 10:44

This might be too much to ask, but...

Had my 2 systems put in and the installers did a nice job, but after I noticed my Honeywell HE250A bypass humidifier was not working I looked and am pretty sure the installer didn't configure things right for the humidifier or for dehumidifying. They are coming back tomorrow, but I would like to understand this so I know they do it right.

Upstairs system is Trane XV90 2 stage var speed furnace with Trane XR15 single stage heat pump.

Downstairs system is Trane XV95 2 stage var speed furnace with Trane XR15 single stage heat pump and Honeywell TRUEEase HE250A bypass humidifier.

First the Humidifier. According to this picture the top dip switch should be set to the right and the lower to the left. Am I right? Installer did not set them to this.

From HVAC

Then on the IAQ it appears he should have installed a jumper between RH and H1 as shown in Fig 14 below. Correct?

From HVAC

And finally, for the general tstat to furnace/heat pump with dehumidify on demand how should this be wired and jumpered?
As for DOD from the IAQ diagram it looks as though DHM2 connects to the low speed fan terminal on the furnace. Is that the BK terminal? Why does the furnace install guide say "between R and BK"? I haven't actually looked at the board on the furnace but that doesn't make sense to me. Can someone help clear this up?

From HVAC

Follow-Up Postings:

o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Heating & Air Conditioning Forum

Instructions

  • You must be a registered member and logged in to post messages on our forums.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review the contents and make changes.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • It is illegal to post copyrighted material without the owner's consent.
  • HTML codes are allowed in the message field only.
  • No advertising is allowed in any of the forums.
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.



 
Click here to learn more about in-text links on this page.