Results 1 to 5 of 5
  1. #1
    Join Date
    Sep 2007
    Location
    State College, PA
    Posts
    1,055

    Heat Pump Question

    My brother has a Lennox heat pump (sorry no Model or Serial #) about 10 years old, with a 3 ton condenser and a 4 to air handler. He asked a question as to why the temp in the winter coming out of the vents seems to modulate so much. He says it goes anywhere from 85* to 110* F. Seems to start out at higher temp and the more it runs, the lower the temp goes. I have not had a chance to look at it yet.

    Any idea what might be going on with this system. He lives out of town but I will be over to see him next weekend.

    Thanks for any help.

  2. #2
    Join Date
    May 2007
    Location
    DC Metro Area (MD)
    Posts
    3,371
    With temps around 110* plus, the electric heat elements ("auxiliary" heat) could be active during those periods of time to meet the temperature differential quicker. Also, outdoor temperature will affect the air temperature coming out of the registers.

  3. #3
    Join Date
    Sep 2007
    Location
    State College, PA
    Posts
    1,055

    Thanks

    Hey Ryan - thanks

    You make a good point. Must be having brain meltdown from working on a/c last few months. I should have know about heat strips coming on to meet demand.

  4. #4
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    34,090
    Depends on outdoor temp and frost buildup on the coil too. But to get 110 air, likely the strips.

  5. #5
    Join Date
    Sep 2007
    Location
    State College, PA
    Posts
    1,055
    Me thinks you are right.

    Thanks

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