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  1. #16
    Join Date
    Jul 2007
    Location
    Melbourne
    Posts
    105

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    Quote Originally Posted by Termite View Post
    If the installer is telling you that it is normal then he is full of crap. It is definitely not normal.
    Yes he is

  2. #17
    Join Date
    Dec 2006
    Location
    Canberra
    Age
    45
    Posts
    93

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    My opinion is the refrigerant has a possible imbalance. 410a is a near azeotropic (the two components act the same causing no glide as long as it's in the right proportions) blend of r32 and r125 . If the system is dominated by either of these, the operating pressures change significantly.

    another thing to check is the evap fan. these are usually a shaded pole or brushless dc motor and a stiff bearing can really slow it down, causing the evap pressure to drop below 700 kpa causing the ice up.

    First thing i'd check is the suction pressure and superheat. High superheat- underfed coil. low superheat-low airflow.

  3. #18
    Join Date
    Jun 2006
    Location
    Barboursville, Virginia USA
    Age
    77
    Posts
    549

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    Quote Originally Posted by Timmo View Post
    First thing i'd check is the suction pressure and superheat. High superheat- underfed coil. low superheat-low airflow.
    First thing I'd check is why he is running his AC in the dead of Winter in Massachusetts in the US? Aha! This is a Lazarus thread, breathed back from the dead of 2006! Hopefully, he has it sorted by now.
    Cheers,

    Bob



  4. #19
    Join Date
    Jul 2007
    Location
    Melbourne
    Posts
    105

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    Quote Originally Posted by Honorary Bloke View Post
    First thing I'd check is why he is running his AC in the dead of Winter in Massachusetts in the US? Aha! This is a Lazarus thread, breathed back from the dead of 2006! Hopefully, he has it sorted by now.

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