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  1. #1
    Art McKenna's Avatar
    Art McKenna Guest

    Default Can You use a smaller coil to a bigger condenser

    Do these two work together
    Whirlpool M# WEMIP50Cw-1
    S# 6209D05207

    Nordyn
    M#NS4BD-O60KA
    S# NSA090400o71

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  2. #2
    Join Date
    Mar 2007
    Location
    Charlotte NC Licensed in NC and SC
    Posts
    597

    Default Re: Can You use a smaller coil to a bigger condenser

    It depends on several factors.
    You can get some hvac technical info here:
    HVAC-Talk: Heating, Air & Refrigeration Discussion - Powered by vBulletin

    Bruce King, B.A. King Home Inspections, LLC
    www.BAKingHomeInspections.com
    Certified Master Inspector, Independent Inspectorwww.IndependentInspectors.org

  3. #3
    Zibby Bujno's Avatar
    Zibby Bujno Guest

    Default Re: Can You use a smaller coil to a bigger condenser

    umm, bad idea. Symptoms, poor performance, compressor failure due to high superheat.


  4. #4
    Join Date
    Jul 2008
    Location
    Utah
    Posts
    389

    Default Re: Can You use a smaller coil to a bigger condenser

    I concur with the statements above. I'd also add that you could see frosting and freezing of the coil more often as well.

    It is generally a bad idea to under-size your coil.


  5. #5
    Art McKenna's Avatar
    Art McKenna Guest

    Default Re: Can You use a smaller coil to a bigger condenser

    Quote Originally Posted by Art McKenna View Post
    Do these two work together
    Whirlpool M# WEMIP50Cw-1
    S# 6209D05207

    Nordyn
    M#NS4BD-O60KA
    S# NSA090400o71
    Spec attached
    EM1P50 is the same as a WEM1P50
    What is it rated for 4 or 5

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  6. #6
    Art McKenna's Avatar
    Art McKenna Guest

    Default Blower motor to small

    What would happen if You put a smaller blower motor. On a 5 ton system say a 1/2 or a 1/4 horse power motor. The system still doesn't work they replaced the coil with a 5 ton coil.


  7. #7
    kevinvantassel's Avatar
    kevinvantassel Guest

    Default Re: Can You use a smaller coil to a bigger condenser

    Quote Originally Posted by Art McKenna View Post
    Do these two work together
    Whirlpool M# WEMIP50Cw-1
    S# 6209D05207

    Nordyn
    M#NS4BD-O60KA
    S# NSA090400o71


    You can go a little bigger on the coil, but it's a bad idea to go smaller.


  8. #8
    Join Date
    Oct 2010
    Location
    Southwest US
    Posts
    585

    Default Re: Can You use a smaller coil to a bigger condenser

    Quote Originally Posted by kevinvantassel View Post
    You can go a little bigger on the coil, but it's a bad idea to go smaller.
    I've run into this a few times lately and have called for HVAC to check it. Surely there must be some reason that the sizing is supposed to be matched, not larger or smaller. Mismatching must be a problem, otherwise why label the evaporator? The unit doesn't say "OK for 4 ton or smaller compressor".

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