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  1. #1
    Join Date
    Sep 2007
    Posts
    155

    Max vertical lift

    If the recomended maximum vertical lift of a lineset for a given split system unit is say 20 ft and you were to push that lift 1/2 again past the recomended to 30 ft what would the result be ? any short term issues such as pressures or freezing problems or long term damage. New and curios about this limit and its effects

  2. #2
    Join Date
    Feb 2008
    Location
    Western NC
    Posts
    2,504
    The lineset needs to be properly sized according to the application it is being used. As long as its sized properly, shouldn't be too many effects.


    Here on the beach, we have run linesets with close to 80 ft of lift.
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    If you don't know, then don't do. If you don't know and still do, then be prepared to pay someone else a lot to undo what you did and then do it right.

    If you do know, then do. But do it right. Otherwise, you may not be doing it long.

  3. #3
    Join Date
    Mar 2008
    Location
    Kitchener, Ontario
    Posts
    508
    Quote Originally Posted by westmorelnd View Post
    If the recomended maximum vertical lift of a lineset for a given split system unit is say 20 ft and you were to push that lift 1/2 again past the recomended to 30 ft what would the result be ? any short term issues such as pressures or freezing problems or long term damage. New and curios about this limit and its effects
    put your traps in every 15 feet and if you are running your lineset longer the manu's specs add oil and charge to suit

  4. #4
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,870
    Quote Originally Posted by bdivell View Post
    put your traps in every 15 feet and if you are running your lineset longer the manu's specs add oil and charge to suit
    If his ev ap is higher then teh condenser, then he doesn't need traps in teh line.
    With the exception of an inverted trap at the top.
    Some manufacutrers don't want traps even if the condenser is above the evap.

    Read the instructions for the unit your installing. If your height is outside of what the install manual has instructions for, call the manufacturer, and find out what they want.

    The ectra 10' of height will reduce teh head pressure at your metering devince by 5 PSIG for the height alone.
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