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  1. Superheat and subcooling.

    Quote Originally Posted by nike123 View Post
    Superheat of TXV should be adjusted at commissioning or replacement of valve.
    Superheat should be adjusted at about 65% of evaporator design TD when ambient temperature of cooling equipment is 1-2 K near design temperature.

    http://maleki-hvac.ir/Portals/0/Kuba...ructions_2.pdf

    Subcooling should be adjusted with refrigerant charge when ambient temperature is near design temperature. Condenser could be partially covered to get that design condensation temperature.
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