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  1. #1
    Join Date
    Mar 2016
    Location
    IRAN
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    Question about refrigerant charge



    Hi All,

    Would you please someone let me know :

    Why when temp. of evaporator is low we must charge system with more refrigerant.
    For example if a system working on air-conditioning system we must charge system with less refrigerant instead if that system works for example on -15C evaporator temperature.

    Sincerely yours.



  2. #2
    Join Date
    May 2017
    Location
    Cluj-Napoca, Romania
    Age
    29
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    Re: Question about refrigerant charge

    I'm not sure what's the science behind it, but I've been always told to do so.

  3. #3
    Join Date
    Oct 2001
    Location
    Nottingham UK
    Posts
    5,078
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    42

    Re: Question about refrigerant charge

    Any system, high temp (A/C) or low temp should be charged to the correct suction superheat.
    Different types or sized systems will have different charge amounts
    I'm back on the Pale

  4. #4
    Join Date
    Sep 2003
    Location
    ISRAEL
    Age
    65
    Posts
    4,109
    Rep Power
    37

    Re: Question about refrigerant charge

    AC system will not operate well in low evaporating temp. You need a low temp compressor for that.

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