Results 1 to 10 of 10
  1. #1

    Did they wire the tstat correctly?

    Hi,

    I was double-checking the installer's work (they have a little more to do tomorrow until they're finished; installing a new HP and AH) and noticed that they didn't pull a new thermostat wire bundle.

    Originally, I had a single-speed blower and I've since upgraded to a Carrier variable-speed (FV4) along with the Edge thermostat. From what I can gather in the Edge installation instructions, you're "supposed" to have wire running to D1/D2. I don't, since the old thermostat wire bundle doesn't have enough extra wires.

    In the thermostat to fan coil wiring diagram, it looks like you can jumper D1 to R (on the fan coil side) and then jumper R to DH (again, on the fan coil side). However, there is a note to "remove [that] jumper for dehumidify modes". The diagram also shows a connection from D2 to DH (fan coil side).

    See this PDF, page 68, for the diagram I'm looking at: http://www.favret.com/pdf_files/ther...si_install.pdf

    I'm not an expert, but it seems to me like they really need to pull a new tstat wire bundle so D2 can be wired to the thermostat. Otherwise, I guess I'm losing out on the dehumidify-on-demand functionality that I paid for. Do the experts agree?

    Thanks!

  2. #2
    Join Date
    May 2012
    Location
    Upper Michigan
    Posts
    3,589
    Maybe they are waiting until tomorrow if they are, I sometimes make it things work until I finish the next day, I would just ask them, that would be the simplest thing.


    Sent from my iPhone using Tapatalk

  3. #3
    Yeah, I'll ask, but my only concern is that these are pretty young guys, and seem to want to get in and out, so they'd be likely to hem and haw in order to get out of pulling a new wire. I would think the first thing you would do before wiring up the tstat is to make sure there actually _are_ enough wires available. Thanks.

  4. #4
    Join Date
    Jan 2008
    Posts
    2,128
    Ask them to clearly explain all the options of the system and the thermostat.
    If they can't do that, you may have hired the wrong guy.
    "Hey Lama, hey, how about a little something, you know, for the effort." And he says, "there won't be any money, but when you die, on your deathbed, you will receive total consciousness." So I got that goin' for me, which is nice. - Carl Spackler

  5. #5
    Join Date
    Jul 2005
    Posts
    5,576
    The Edge t-stat can be installed using a two-wire connection.

  6. #6
    Join Date
    Mar 2010
    Location
    Spud Country
    Posts
    326
    I second that
    I am an experienced, caring, trusted, service provider who solves my customers issues beyond there expectations by educating them and guiding them with value-building options to make excellent buying decisions while building security and wealth for my company, myself and my family.

  7. #7
    Join Date
    Jul 2006
    Location
    Virginia
    Posts
    4,905
    That is your dehumidify on demand function it has to be wired up and turned on to work .i am a big fan of this function although many installers dont hook it up
    We really need change now

  8. #8
    Join Date
    Aug 2004
    Location
    North Richland Hills, Texas
    Posts
    14,915
    It sounds like they may doing a "one piece" installation of the thermostat with the equipment control module used as a sub base for the display.
    Nothing wrong with that, but to avoid having to pull a new thermostat wire, the thermostat can be installed as 2 pieces with the control module mounted at the equipment, with a 2 wire connection between it and the display on the wall.
    If more government is the answer, then it's a really stupid question.

  9. #9
    Oh, you can do that? Neat, I'll run that idea by them. Thanks!

  10. #10
    Join Date
    Aug 2004
    Location
    North Richland Hills, Texas
    Posts
    14,915
    Quote Originally Posted by xienze View Post
    Oh, you can do that? Neat, I'll run that idea by them. Thanks!
    The instructions for it start on page 12 of the PDF file you linked.
    If more government is the answer, then it's a really stupid question.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event