• Terwhilliger (unregistered) in reply to BobB
    BobB:
    Everything went pretty well, until we found out whoever installed the backup power for the data center did not properly ground it...

    Remember, it's not safe cybersex unless you're properly grounded...

  • Random832 (unregistered) in reply to Overworked, Underpaid...
    Overworked:
    As more and more servers were installed we approached the limit that our current 20 ton unit could handle. When the coolest the room could get was 78F, it was agreed that a new AC would have to be installed. An additional 20 ton unit was installed.

    The old AC unit came with the building, and the new unit had a bad thermostat, so someone just set the unit to On until the new thermostat arrived in a few days.

    We get an alarm that the server room is at 85F, so I start heading in... along the way get 3 more alarms... 93F, 99F, 107F... within 15 minutes... and I start to wonder WTF?

    The old AC was working in unison with the new AC until the room hit 68F and shutdown... and the new AC took the room down to <57F at which point the old AC switched to HEAT MODE...

    The new AC couldn't keep the equipment cool with the old AC heating the room too...

    Since then the old AC's controller has been replaced with one identical to the new one.

    Why didn't the old AC stop heating once the room came back up above 60? Was the new AC blowing directly onto the old AC's thermostat?

  • Random832 (unregistered) in reply to Overworked, Underpaid...
    Overworked:
    our current 20 ton unit .... An additional 20 ton unit was installed.

    speaking of obscure non-metric units... Does anyone but me know what a "ton" is in this context? The amount of energy needed to freeze one short ton (2000 lb ~= 907 kg) of water at its freezing point (i.e. heat of fusion). 12k BTU/hour or 3.516 kW. (that's the rate at which it removes heat from the air, not its own power consumption)

  • Random832 (unregistered) in reply to Random832
    Random832:
    The amount of energy needed to freeze one short ton (2000 lb ~= 907 kg) of water
    Per day, that is.
  • (cs) in reply to DOA
    DOA:
    I'm ashamed to say I had something similar happen at home. The microwave stopped working one day and we went without for a month or two. Until one day someone noticed something in the breaker box...

    One time the power in our whole house went out... we very puzzled for a while at how the lights everywhere else on the street were still on. It took a few hours before someone finally thought of checking the main circuit breaker.

  • danopia (unregistered)

    Too bad I never had these adventures, except for phone lines (with the check the cables). Our phones lines are wired by the previous owner/contractor in CAT6 cable plus an extra pair (came in handy later on for CAT6 + a parallel phone line). The phone cables are all connected using what appears to be an industrial-sized electronics breadboard, only it used a different connectors (as to not die over times like breadboard springs do).

    Needless to say, it took a while to correct all the weird wiring, standardize the colors, and use the rails instead of running the source wires up and down for all the cables. It was even more fun adding the CAT6 router to the mix, and we cut a few 3ft patch cables in half. :P

    Now it looks like spaghetti and it's just a phone board for a residential household with one phone line. We don't even use the CAT6 now that my dad found wifi cards.

  • Ben (unregistered)

    This made me think of a place I worked. The server room was cooled by 3 box fans. 1 was on the floor, 1 was jammed into a rack and the third was in the rails of the drop down ceiling. The cooling system worked fine but looked ghetto as hell.

  • http://itsaboutcats.blogspot.com/ (unregistered)

    nice site

  • gaoyue (unregistered)

    the city heating system in the cold winter is quite well. It seldomly gets broken, and it is clear and we can wear in the cold winter.

  • Nick Price (unregistered)

    My AC unit would shut down so much during the day that it drove me crazy. I was prepared to just throw it out when my brother recommended Atlas Trillo in San Jose CA. I’m so happy I listened... They did an amazing job! My AC now works like new! I recommend them for AC servicing, visit their website www.atlastrillo.com.

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