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  1. York ycva55 chiller

    Does anyone have or know where I could get a manual or wiring diagram for this old chiller.

  2. 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.

    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.
  3. Presure-Entalpy chart explained

  4. New freezing plant on H/G trawler *First Visit* VIDEO

    I was watching one of the welders as he was laying the second string of weld on a weld on the main suction pipe and got very mesmerized by how he was swaying his whole arm when welding.

    In the days before welders had to be certified to weld on freon systems I used to TIG weld myself, but I always needed to rest my wrist on the pipe to get support and therefore could only weld 5-10 centimeter at a time before I had to stop to change position.

    Trying to weld without support, ...
  5. New freezing plant on H/G trawler *First Visit* part 3

    Click image for larger version. 

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    360 degree picture of the area where our welding contractor set up.
    Click image for larger version. 

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    General arrangement plan (GA-plan from now on) showing the layout of evaporators in the cargo hold, liquid separator can be seen below the first row of evaporators to the left in the picture
    Click image for larger version. 

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    All the valves for the plant neatly sorted and marked with according to the piping diagram (we were lucky the ...
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