Results 1 to 7 of 7
  1. #1
    Join Date
    Sep 2006
    Posts
    136

    What brands/models offer demand defrost control on HP's?

    I'm trying to find which brands and/or models offer demand defrost control on HP's? Seems like hard info to find.

    Also, which brands don't would be just as helpful.
    Thanks,

    Mark

  2. #2
    Join Date
    Aug 2004
    Location
    North Richland Hills, Texas
    Posts
    14,914
    All American Standard and Trane heat pumps have demand defrost.
    Lennox uses demand defrost on their top end units, I'm not sure about their lower end units.
    I think Carrier uses it on some units, I'm not sure though.
    Rheem/Ruud use it on at least some of their units.

    I have no idea what other brands are doing on their newer equipment.
    If more government is the answer, then it's a really stupid question.

  3. #3
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    34,040
    York uses it on a lot of units
    I don't think Carrier/Bryant use it at all
    Rheem/Ruud and even the cubes use it

  4. #4
    Join Date
    Sep 2006
    Location
    Shenadoah Valley
    Posts
    185
    all of rheems have it even have it,even the corse air line
    WORK HARDER!!!!! millions on welfare depend on you...
    opinions are like bungholes everbody has one...

  5. #5
    What about Goodman?

  6. #6
    Join Date
    Sep 2006
    Posts
    136
    I don't think Goodman/Amana have it. But I wish they did.
    Thanks,

    Mark

  7. #7
    Join Date
    Apr 2005
    Location
    NE PA
    Posts
    698
    I have a 1.5 ton Goodman with demand defrost.

    I retrofitted it myself using a YorkGuard IV controller from leftover part stock. Works great and rarely defrosts, only when needed, as advertised.

    It was not a difficult retro, but having all of the parts and sensors available was a key part. I actually did it in the mid of the first winter season when I got tired of hearing it defrost every 90 minutes, and not seeing any frost.

    paul

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