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  1. #1
    Join Date
    Oct 2012
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    Same unit, different efficiency numbers...???

    Hi all,

    I'm breaking this question off on a new thread since it's very specific.

    I have 2 proposals for basically the exact same configuration, at least in the heat pump compressor and air handler. The problem is, I get 2 different efficiency numbers from different installers. Shouldn't it be the same?

    The system is a Carrier Performance
    SEER 15
    25HCC530 unit
    FV4CNF002 air handler
    2.5 ton systems

    Installer #1 says:
    EER: 12.5
    HSPF: 8.5

    Installer #2 says:
    EER: 12
    HSPF: 8.1

    What gives? Are there minor changes within each model # that may affect this?

    Thanks in advance.

  2. #2
    Join Date
    Jan 2009
    Saint Joseph, MI
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    One might be using the actual online ARI database. THe other might be using the product data sheets which are not as accurate or updated as regularly and contain fewer matches.

  3. #3
    Join Date
    May 2000
    Indianapolis, IN, USA
    Post Likes
    AHRI# 3676250

    says #1 is right.

  4. #4
    Join Date
    Oct 2012
    Post Likes
    Thread Starter
    Interesting that the higher, more favorable numbers are the correct ones. It's usually the opposite.
    Thank you all!

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