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Type: Posts; User: Allen Anders

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  1. trane bcu

    You may be right but remember their comm is 3 packets short from being modbus tsu, and 7 packets short from being modbus rtu
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    screw compressors

    A slipper seal is like a oring going around the slide valve it works like a piston ring.

    The FSU screw comp is one screw that only the manafacturerer should control because of its itricate...
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    sorry to give complete answer.

    yes you do energize fast unload at shut down or any operating alarm
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    hitachi

    with these screws you can use a w-7100 for screw chillers
  5. trane bcus

    only comm 5 controllers are lon all others 3 and 4 you cannot communicate with directly
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    DB

    which model screw compressors are on chiller
  7. Trane intergration

    Trane is already 100% bacnet, according what model as to what you need to do. Trane does not speak any language thru their controls . The BCU is the bacnet connection thru ethernet or ethernet\IP...
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    screw comp

    support oil separator discharge housing when removing.
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    screw comp

    You need to have large metric allen wrenchs and take it slow because the slipper seal is tender. Most importantly if there are any wear marks on slide valve you must rebuild the whole mechanical end...
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    DB-danfoss upgrade

    I used to be the National Service Manager for Dunham Bush and this upgrade to the new controls will make all operations smoother and this upgrade is easy just be careful of terminal markings
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    rtaa 300

    Try checking subcooling should be 10 -12 f at full load and make sure that that evap water flow meets chart in machine . Water flow can change charge
    and subcooling will tell you that
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    jci

    Try CTS Services at 1-800-791-7088 ask for Steve Wells
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    trane bcu

    we need to know if you have a BMTS or BMTW, BMTX model of BCU
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    dx-9100

    You can print all point info and addressing from gx-9100 guide
  15. condensor problems

    With out seeing the problem 1st hand we are all guessing, high water flow and condensor fouling produce the same effects the fouling can be tested with citric acid which will not hurt the metals but...
  16. APC

    this problem is due to high water flow infringing on the metals, remember for
    condensors you should have 3 GPM per ton any more will not pick up enough heat which can add to the errosion. I have...
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