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    psgcooldog's Avatar
    psgcooldog Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Mar 22, 2010, 08:16 AM
    Larger suction line than spec for a mini-split OK?
    I'm replacing one dead mini-split system with a different model. The original unit called for a 5/8" suction line, and the replacement specifies a 3/8" suction line.

    Will using the existing over-sized suction line with reducers cause a problem?

    Thanks!
    Paul
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Mar 22, 2010, 11:23 AM
    Use the proper suction line size for the new unit.
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #3

    Mar 22, 2010, 03:03 PM
    Yep,, you can ,might ,probably , will void the warranty by improper installation
    psgcooldog's Avatar
    psgcooldog Posts: 2, Reputation: 1
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    #4

    Apr 1, 2010, 06:00 AM

    Got it, thanks!
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