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  1. 27-02-2009, 06:46 AM #1
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    ginger jiang
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    Question glycol in the heat pump



    How to use glycol in the heat pump to ensure it can work in very low temperature?


  2. 27-02-2009, 06:54 AM #2
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    Re: glycol in the heat pump

    You need to know lowest system temperature before safety alarm switch off unit and according to that, find right mixture of water and ethylene or propylene glycol.
    Also, you need to consider capacity change and flow change due different density of fluid.
    Chiller manufacturers gives tables of glycol mixtures for their products.
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