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  1. Presure-Entalpy chart explained



  2. 9 superheat & subcooling scenarios

    Quote Originally Posted by nike123 View Post
    • LOW CHARGE = High superheat. Low suction pressure, indoor TD, subcooling, head pressure & compressor current draw.
    • OVER CHARGE = Low superheat. Normal indoor TD. High suction pressure, subcooling, head pressure & compressor current draw.
    • LOW INDOOR AIR FLOW = Low superheat & suction pressure. Low to normal head pressure. High indoor TD. High to normal subcooling. Not much effect on current draw.
    • MILD LOW OUTDOOR AIR FLOW = Low superheat & subcooling. High suction
    ...
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  3. Extending torque wrench correctly

  4. What is the purpose of having the capillary tube soldered to the suction line.

  5. Refrigerant circuit animation video

    Here is nice explanation:

    Updated 28-09-2013 at 08:10 AM by nike123

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