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  1. #1

    two stage HP with older zone system

    I am thinking about upgrading my 10 SEER single stage HP system to a 20 SEER Trane unit. The question I have is will I need to replace the tstats and /or zone system if I upgrade to a 2 stage system. The zone system is a Honeywell EMM-3U with 2 T8011R tstats. The house was built in "05
    Home info. I live in NE Florida and have a 2155 sq ft house with bonus room. Bonus room has the other tstat. The rest of the house is controlled by the other tstat.

  2. #2
    thanks.. that is kinda what I thought....thanks for the conformation

  3. #3
    will I have an issue with newer tstats with this older zone system?

  4. #4
    Join Date
    Jul 2006
    Trane has avery nice zone system to work with the communcating 20i

  5. #5
    Join Date
    Jan 2004
    BillCheshire, this is the Ask Our Pro's forum, and only Pro members that have been vetted by the AOPC may post advise here. Please apply to the AOPC today, thank you.

    You can find the rules for posting and qualifications here.

    Further infractions may result in loss of posting privileges.
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  6. #6
    Join Date
    Dec 2002
    Quote Originally Posted by catmanacman View Post
    Trane has avery nice zone system to work with the communcating 20i
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