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Thread: Trap or not ?

  1. #1
    Join Date
    Oct 2009
    Location
    ma
    Posts
    40

    Trap or not ?

    I am piping in a split system, not sure of size yet dont have equipment, i was told to run 3/8 and 1 1/8 from first floor to roof, from coil on furnace run length is approximately 45' going in this pattern verticle 5' horizontal 15' vertical 11' horzontal 8' then vertical 5' through roof.


    I thought as long as condenser was higher than evap , then a trap at coil and reverse trap on roof was needed. I asked and was told it didnt need it, cant this cause lack of oil to return to comp and cause oil build up in evap


    just curious to what people think

  2. #2
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,101
    varies with system.

    Fill out your profile.
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    How many times must one fix something before it is fixed?

  3. #3
    Join Date
    Oct 2009
    Location
    ma
    Posts
    40
    its a carrier puron, dont know if that helps

  4. #4
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,101
    Not really.
    You need to check Carriers install manual.
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    How-to-apply-for-Professional

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

  5. #5
    Join Date
    Oct 2009
    Location
    ma
    Posts
    40
    ok thanks

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