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  • Single phase chiller?

    Looking in brewery equipment, but only have single phase power. Is it possible to run a 10 hp chiller with out 3 phase, or is that crazy?

  • #2
    We bought a used phase converter that changes single phase to 3 phase to run our chiller. We got it used on craigslist for $700, not sure what they cost new, but a 3 phase drop to our building was going to cost us $17k (reduced somewhat on 1 years projected power usage but still unreasonable). It runs constantly but it does the trick. It's not very noisy. We just ran another circuit panel off of our single phase panel that contains 3 phase breakers after going through the converter (I think, we had an electrician do it).
    _______________________
    Chris Burcher, Wolf Hills
    Abingdon, VA

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    • #3
      Thanks for the quick reply. Do you have any idea of the efficiency loss as compared to having a direct 3 phase supply? Do you need a seperate phase converter for each 3 phase motor?

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      • #4
        there are some here http://www.driveswarehouse.com/Drive...FQsGbAoduilKhw, I would oversize it by at least 20%
        Last edited by Scott M; 10-30-2010, 11:59 AM.

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        • #5
          I have only second hand knowledge of these units- but do know of customers having issues using a single converter to feed the multiple motors contained on the chiller system. I'd make sure and explain to the phase converter supplier that you will have multiple motors operating off a single power supply:

          1) Compressor Motor- cycles off and on based on cooling demand
          2) Condenser Fan Motor(s)- cycles off and on based on head pressure
          3) Glycol Pump Motor(s)- typically run all the time, sometimes will cycle off with cooling demand.

          Good Luck,

          Jim
          Pro Chiller Systems
          jimvgjr@prorefrigeration.com

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          • #6
            Re: Phase Converters

            I oversee a property where one of these devices is used to run a line of Milnor Commercial Washers. While they do work, I find them a bit quirky. This particular brand is Phase Master I believe. By the book,one of the phase to phase readings will be quite high with no load on the system, like around 290V on a 240V system. This tends to come into line some when the unit is loaded, but on such a line the diversity of load is constantly changing. That wild leg caused me some problems on some of the on board controls. After taking the high leg off the control feed in the machine which is single phase, the problems were rectified.
            Said problems were repeated burned components. Depending on how the chiller is setup, this type of unit might not be a problem. They are sized by the load to be run. This one burns about 5 AMPS with no load.

            SC
            Rogue Refrigeration Tech at Large
            Warren Turner
            Industrial Engineering Technician
            HVACR-Electrical Systems Specialist
            Moab Brewery
            The Thought Police are Attempting to Suppress Free Speech and Sugar coat everything. This is both Cowardice and Treason given to their own kind.

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            • #7
              Single phase chiller?

              I have the same issues. I do not have three phase and had to increase my cooling demand. I found a company named TEMCo out of CA. They have great customer service and warranty the product for 5 years as a constant running device. They sized it for me and were available through out the entire installation for questions, etc. FYI the "third" leg the motor generates is the "wild" leg. Meaning it will be suitable for a three phase device but any 110 v or 220 v be sure to connect to your power company's lines.

              TEMCo. Ph # (510) 403-4067

              The quote on their mailer says "We'll do what ever it takes to win your business". Pretty bold statement but I was very please with my decision.
              Chuck Williamson
              Butternuts Beer & Ale
              (607) 263-5070
              butternuts@frontiernet.net

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