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  1. #1

    York YZE02411 Heat pump to a Miller Furnace

    I had an opportunity to buy a last year model York heat pump, at a deep discount form a local HVAC contractor. At the time of purchase both of us believed (well convinced ourselves) that an evaporator could be matched to my new Miller M7 gas furnace. Well no such luck, as I was unable to find a ARI match. So now I need some options and/or ideas on what would work the "best".

    The heat pump is a York YZE02411MXA Affinity 8T series, the Furnace is a Miller M7 High efficiency gas down flow furnace. I am an experienced HVAC installer, some time ago, but matching up systems was not part of the job. I also understand that I may not achieve full SEER rated efficiency.

    The way I see it I have two options:

    York H/P, w/required York TEV, and York evap hp/ac coil.

    or

    York H/P, w/required York TEV, and Miller evap hp/ac coil.

    Does anybody have other suggestions that might work?

    Thanks

  2. #2
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    33,898
    You will never find a cross brand rating. Pick the evap that fits the application and is an approved match with that outdoor unit. How are you going to handle slowing the blower for low stage?

  3. #3
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,722
    Does your miller furnace have a VS blower?
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  4. #4
    Quote Originally Posted by beenthere View Post
    Does your miller furnace have a VS blower?
    Yes it does, low 900, med low 1185, med high1355, High 1580 CFM.
    Last edited by Hoverfly; 08-07-2012 at 06:18 PM. Reason: RMP to CFM

  5. #5
    Join Date
    Jan 2004
    Location
    Lancaster PA
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    67,722
    Quote Originally Posted by Hoverfly View Post
    Yes it does, low 900, med low 1185, med high1355, High 1580 CFM.
    Is it a VS blower, or a multi speed blower?

    In first stage, if your blower isn't VS, it won't dehumidify, and in heat mode, it will be very cool air coming out.
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  6. #6
    Quote Originally Posted by beenthere View Post
    Is it a VS blower, or a multi speed blower?

    In first stage, if your blower isn't VS, it won't dehumidify, and in heat mode, it will be very cool air coming out.
    Good point, it's muti speed not VS. I know that Miller does have a heat pump option for their furnace. I will look into that.

  7. #7
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,722
    Ya, 2 stage on a multi speed doesn't work as well as 2 stage on a VS blower.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

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