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  1. mfi2000

    Over capacity chiller

    What options can you use? Can you downsize, sell the chiller and put in a different one? What about the air side. What type of air distribution do you use. The constant start stop isn't good for the motor. Need a little more info. In my building we can go to outside air when it's cold enough.
  2. mfi2000

    surging centrifugal chiller, lowering condenser water temp helps. Why

    I'll try to take a stab at this as it is similar to the way my plant used to run. Our plant had 3 4000 ton chillers, 4 7000 gpm chw pumps, which fed riser pumps which then fed HX's on up to the higher floors. We also fed 10 other buildings. We also had 2 large bypass lines which we could moniter...
  3. mfi2000

    surging centrifugal chiller, lowering condenser water temp helps. Why

    Why are the chilled water temps so low. I've run many plants in NYC and never supplied this low water. Even when supplying 7 million sq. ft. of building space we supplied 42 water. These machines are not really designed for this, although they can produce it. If the original design specs where...
  4. mfi2000

    Vibration in Suction piping

    Does the pump vibrate? Is it aligned properly. A lot of places use vibration eliminators on the suction and discharge piping due to turbulence in the system which cannot be cured. Are there any other pumps which do this?
  5. mfi2000

    flash tank vent blowing water

    Well it turned out to be a simple problem. A bad trap. When I asked the boss if the traps had tested good he said yes. I guess he didn't read the report. One of the traps feeding the tank tested bad. Even if didn't I would have replaced them, there are only 3. I spent the night listening and...
  6. mfi2000

    flash tank vent blowing water

    Hello again, back at work. I'm going to have to open the main trap up sometime to see if it is working. The plant is going full blast, too hot to do it now. I asked the senior engineer about this and he said it has been happening for some time. I will also put a gauge on the tank. I'm wondering...
  7. mfi2000

    flash tank vent blowing water

    Hello all, first time post here. We have a flash tank next to our main steam lines in the subcellar. The tank is being fed from 2 condensate line off the steam legs. The tank has a vent going up to the 3rd floor into a plenum. The tank is supposed to drain into a trap, past a check valve, and...

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