Results 1 to 9 of 9
  1. #1
    Join Date
    Aug 2000
    Location
    Austell, Ga.
    Posts
    1,296
    We started our first York "Mustang" This week....

    Air-Cooled Screw Chiller without "ANY" Slide Valve(s) or charged element Valves of any kind.(TXV's, EEV's etc.)

    Puuuuuuuuure' VSD Capacity control, It also has Sub-Cooled liquid down to 55°f "Without" heat exchanger.

    Last readings was 85% capacity while loafing @ 172hz.
    (100% would equal 200hz.

    Honestly all, Looks like York has a winner here...

    It was...and is the first one started....

    And oil return is not going to be a problem...
    Ain't "None" of us as smart as "All" of us..

  2. #2
    Join Date
    Aug 2000
    Location
    USA
    Posts
    4,995

    Thumbs up Well its about time!!!

    They using an economizer and side loading the screw for subcooling?
    Originally posted by RichardL
    We started our first York "Mustang" This week....

    Air-Cooled Screw Chiller without "ANY" Slide Valve(s) or charged element Valves of any kind.(TXV's, EEV's etc.)

    Puuuuuuuuure' VSD Capacity control, It also has Sub-Cooled liquid down to 55°f "Without" heat exchanger.

    Last readings was 85% capacity while loafing @ 172hz.
    (100% would equal 200hz.

    Honestly all, Looks like York has a winner here...

    It was...and is the first one started....

    And oil return is not going to be a problem...

  3. #3
    Join Date
    Mar 2004
    Posts
    72
    Richard,

    Any refrigerant schematics or other interesting information
    available?

    If 200Hz is 100%, what is the low end Hz? Does it track lift in any way to keep enough torque to the motor, or perhaps rely on the drive setup? I assume (always gets me in trouble) it is a volts per hertz drive situation.

    Quiet?

    Sounds very interesting!


  4. #4
    Join Date
    Aug 2000
    Location
    Austell, Ga.
    Posts
    1,296
    Lew2;
    No printed literature on this puppy yet..Zip...Nada..
    Yes uses part thread injection to sub-cool "The Tank"..
    "The Tank" has a stepper valve on the inlet & discharge.
    Internal compressor parts add up to a "Grand Total" of 11 pieces....
    VSD uses a Vf ratio but it a velly-velly strange voltage...
    Ain't "None" of us as smart as "All" of us..

  5. #5
    Richard, you are messing me up....I'm an inch away from going back to residential work, and you intice me with what might be the world's first WORKING screw chiller. You know i must learn more about this dude. Can you hear a freight train over it? I assume it's a 22 machine, what is the max tonnage available?

  6. #6
    Join Date
    Mar 2004
    Location
    North Carolina
    Posts
    400
    Hello yobro 1619 here . I can't wait to see one of these in n.y. Some of my compadres saw one of these in York .
    is this really happening or not

  7. #7
    Join Date
    Sep 2002
    Posts
    525

    Thumbs up

    WOW sounds very interesting!!

  8. #8
    Join Date
    Aug 2000
    Location
    Austell, Ga.
    Posts
    1,296
    [QUOTE]Originally posted by no8no3
    [B]Richard, you are messing me up....I'm an inch away from going back to residential work, and you intice me with what might be the world's first WORKING screw chiller. You know i must learn more about this dude. Can you hear a freight train over it? I assume it's a 22 machine, what is the max tonnage available?

    Presently the compressors are eiher 100 or 120 tons each.
    The one I was involved with was a 240 ton unit..
    We set this one up for 100HZ on the low side, although I am told it will operate much lower..But we kinda' Wooshy down heah', and wanted to stay on the safe side...
    Drive rotor spinning @ 9000RPM @ 100%..
    Smoooooooooth as silk too..
    Ain't "None" of us as smart as "All" of us..

  9. #9
    SWEET!!!!! I will stay on my York buddies to look at one they install ...if ever.

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