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  1. Thread: Start to Start

    by greg r
    Replies
    0
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    311

    Start to Start

    I should know this, but just not familiar or I have a brain freeze. On compressor staging in a recip chiller; the book shows a compressor anti-recycle strategy as 15 minute start to start delay and...
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    800

    It was a campus wide inspection; they never do...

    It was a campus wide inspection; they never do "just one concern".
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    800

    Sect. 608 Compliance

    I work at a large university. We have many many refrigeration systems from larger chillers, 20 ton Lieberts, to 1/2 ton walk-ins and laboratory appliances such as -80 freezers. We may go through...
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    1,743

    Any glycol, ethylene or polypropylene, will break...

    Any glycol, ethylene or polypropylene, will break down to glycolic acids. Bacteria is another big problem in new or old systems. A water treatment specialist should be used to keep things tip top.
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    860

    All Lieberts I've worked on had the schematic...

    All Lieberts I've worked on had the schematic pasted on the dead front. Is that gone too? FH model has to be about 12 to 20 years old.
  6. Visit a power transmission vendor where you can...

    Visit a power transmission vendor where you can get bearings, couplings, sheaves, belts, etc. This ain't rocket science so with a shaft size and a distance between them dimension, you should be...
  7. My experience has seen it is not just govt....

    My experience has seen it is not just govt. employees; read your labor laws.

    Suspension with pay is where the employer is investigating allegations, so the employee is not penalized for what could...
  8. Replies
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    3,446

    OOPs, that work is older than me. It's just that...

    OOPs, that work is older than me. It's just that the cellar looked like the old homestead's one.
  9. Replies
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    1,476

    I'm on your side. You made a good call. I've...

    I'm on your side. You made a good call.

    I've found little in this trade to make me a hero.
  10. Replies
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    3,446

    I thought the cellar looked kinda familiar with...

    I thought the cellar looked kinda familiar with the rock foundation.

    Then I saw the location, Lancaster, my home town.
  11. Replies
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    2,888

    Thanks guys, keep 'em coming. I seem to recall...

    Thanks guys, keep 'em coming. I seem to recall awhile back some people I talked to mentioned control problems. I would think these modular units have to talk to each other in some fashion, and that...
  12. Replies
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    2,888

    MultiStack or AirStack chillers

    Hello all.
    Our department at Oregon State Univ. is embarking on a project to replace a chiller in one of our science buildings.

    The present 160 tonTrane absorption unit is being replaced with an...
  13. Thread: Copeland

    by greg r
    Replies
    22
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    1,744

    RLA, FLA, they're pretty much the same thing. ...

    RLA, FLA, they're pretty much the same thing. They are a RANGE of operating current. As rocket and stonewall have pointed out, actual conditions can influence them. LRA is given for overcurrent...
  14. Replies
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    4,946

    I've had this problem AND belt wear. What I did...

    I've had this problem AND belt wear. What I did was go to a larger motor sheave, and fan sheave to keep the ratio the same; you have to know the ratio to start with. With more contact area on the...
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    2,365

    The local rep for Canatal informed me a year or...

    The local rep for Canatal informed me a year or so ago they've folded.
    Goodbye and good ridance.
  16. Replies
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    681

    Thanks again. I'm not go'in anywhere near the...

    Thanks again. I'm not go'in anywhere near the switches, for as you say, it's a completely different platform.
    I am working on getting stuff up to speed in case classes come up for the taking. I'll...
  17. Replies
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    440

    Could be an OL issue. My thinking is towards a...

    Could be an OL issue.
    My thinking is towards a winding failure, or impending ground issue you won't see with an ohm meter.

    Consider this your lucky day!
    You've been spared a possible burnout.
  18. Thread: Ammonia?

    by greg r
    Replies
    4
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    443

    I was going to suggest a specialty gas/welding...

    I was going to suggest a specialty gas/welding gas supplier, or even your A/C&R parts guy. The one we use can get it, though it knocks them off the counter stool as most of them associate it with...
  19. Replies
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    835

    Your Liebert has the Advanced Micro Processor,...

    Your Liebert has the Advanced Micro Processor, and it can run both DX AND Glycool depending on what it thinks it needs to match the load. If you've selected Glycooling in the setup menu, it will...
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    2,687

    The fact that you asked, says a lot. Attitude,...

    The fact that you asked, says a lot. Attitude, is the major component of any success in anything you do.
    Personally I prefer commercial, I have some patience for "tin" boxes but I'm more used to...
  21. Replies
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    2,424

    I've been involved in a few issues like that here...

    I've been involved in a few issues like that here on a college campus. 1st off, the TYPE of noise has to be identified, and what octave range it's in. Air noise anyone can hear, but the focus is to...
  22. You didn't know?!!! It is, and other...

    You didn't know?!!!
    It is, and other refrigerants of it's day, why Freon(TM) was such a "miracle" refrigerant.
  23. Braze/solder are by far the ONLY way to go. I...

    Braze/solder are by far the ONLY way to go. I only use the clamp on for recovery or to "nurse" something through until a repair. They're never permanent for me.

    That's quite a technological leap...
  24. Replies
    7
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    681

    Well ain't that sump'tin, right yonder in the...

    Well ain't that sump'tin, right yonder in the Portland metro!
    Your boss wouldn't happen to have 2 capital See's in the biz name would he?
    That number is ALWAYS in ma haid and at the front fer quick...
  25. Thread: Dihydrous Oxide

    by greg r
    Replies
    18
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    4,127

    I heard on the news, I think it might have been...

    I heard on the news, I think it might have been Paul Harvey, jeese it was years ago, that some town council near Santa Barbara wanted to ban their coffee cups because someone told them the cups where...
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