Overview of parallel rack refrigeration systems. This presentation includes detail on compressors, oil controls, pressure regulation, and system controls.

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20 thoughts on “Equipment 4 – Parallel Rack Systems

  1. Ba++y says:

    Thanks heaps for this info mate, I'm watching this from Australia and everything here is similar too what you've demonstrated. This may be a silly question but..
    When you were talking about sizing the rack appropriately and saying the biggest compressor doesn't get alot of run time due to it being almost like a back up, and stating that oversizing back in the day was problem. Would it be beneficial NOW to oversize a rack today and just have some VSD's (Variable Speed Drives) on the motors to reduce performance/amps/compressor speed etc? Pros and cons?

    Thanks again for the info

  2. Ebrahim Tirgardoun says:

    Thanks, does it matter what type of condenser (air-cooled or water-cooled) we have to decide about our subcool and also would it make a difference that we have very low or medium temp walking freezer to decide about our superheat

  3. Kris Baldwin says:

    Thank you for sharing this, im hoping to move in career and have never worked on a rack system in my life. Great info and I feel a little more prepared for my interview

  4. hg2 says:

    This is great to have because it's online – you can STOP, rewind, take the time to study the diagrams, then go back and replay the dialog to match the dialog with the diagram.

  5. hg2 says:

    These guys are "doers" first and "teachers" second… That's ok, but as a learning experience, it could be better.
    I'll have to watch this several times to "get it" – can't keep up with the complicated flow-diagrams, then the overly folksy "your xyz valve" and "your xyz meter".

    But here on YouTube we can stop/rewind/repeat.
    "It's a start."

  6. hg2 says:

    For the beginners watching this, don't expect yourself to be able to "pass the test" for the this video. It is for people who already know the reefer business.
    Nevertheless, after the 2nd or 3rd play, try challenging yourself by just listening to the audio and see if you can follow flow and jump-arounds, sentence by sentence, and clause by clause.

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