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  1. HVAC Controls Technician / Project Manager

    Seeking HVAC Controls Technician / Project Manager willing to travel, Must have BACnet experience, Alerton knowledge is a plus. Main Office Located in Dallas Texas
  2. Replies
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    1,532

    AAON VFD Scroll Compressors

    Gents, Working on my first AAON VFD Drive Scroll Compressor, start up.

    VFD=Yaskawa Z100 rated at 77amps
    Compressor = Bitzer 380 Vac

    Problem; The VFD Drive faults in a oL2 (Drive Overload)...
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    9
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    1,961

    KW anyway to get this link updated? I'm in dire...

    KW anyway to get this link updated? I'm in dire need
  4. Replies
    19
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    1,113

    Radient Floor Control

    Gents I just got handed a job where we are controlling Radient Floor Heating. My question what type of floor sensors should I use? Do I need a well or do they just lay in the floor? Should I add...
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    10
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    1,587

    ZBOX Configuration

    Any one ever have the chance to work with the old zbox'es? Like to get some info on them and the pneumatic control system
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    14
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    1,809

    78.6

    78.6
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    14
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    1,809

    More Info

    The control system is Alerton.

    The Chillers use a York talk to Microtalk Bacnet interface. We are connected to the Microtalk using MS/TP and have the MS/TP working (see topic: major comm problem...
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    11
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    1,983

    Troubleshooting

    The troubleshooting went like this.

    There are two chillers with microtalk bacnet interface we connected the ms/tp device to device in a parellel format but not branched. MS/TP shield tied...
  9. Replies
    14
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    1,809

    York Chiller and Bacnet

    The problem is trying to get the chiller to talk on the ms/tp without a router. I have 72 total devices on the network, the leg that the chiller is on I have used a repeter and the total number of...
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    1,983

    The Fix

    Thanks all for your advise, The fix however was to ground the Comm at the Microtalk Bacnet connection and at the router. Its not normal comm but it works.

    Now the problem is trying to get the...
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    1,983

    Major Comm Problems with York Chiller

    History: Bacnet Control project on new construction school, Alerton Controls to interface with York Chiller. All control wiring in conduit, seperate from high voltage.

    York chiller setup with...
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    15
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    3,410

    Thanks

    Thanks

    Kempdog sends
  13. Replies
    15
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    3,410

    Belimo Sizing and Selection Tool

    Does any one have a copy of the Belimo Valve Sizing and Selection Tool (US ) Version? I found one for the euro market and the Belimo web page says that the tool is under construction, hoping to get...
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    3
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    1,067

    Siemens Apogee / Bacnet

    Is the Siemens/Apogee a true BACNET system?
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    2
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    2,795

    VAV Air Balance

    Background: We are working on a Hospital Operating Room
    renovation project, the specifications call for the replacement of the supply
    VAV for each of the OR’s. The original return VAV's have not...
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    2
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    754

    Lighting Graphics

    any of you have lighting graphics, you'd like to share?

    respectfully bob kempsell
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    7
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    790

    Thanks I have the application info ie 2054 and...

    Thanks I have the application info ie 2054 and 2032, what I'm looking for now is the front end users stuff
  18. Replies
    7
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    790

    Appogee info ???? anything

    Appogee info ???? anything
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    7
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    790

    Siemans Controls

    Does any one have a siemans control manual? Operator Manual? DDC Manual? anything? working on intergrating siemans devices with bacnet and would like to know how they work before I switch them...
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    Visual Logic

    Anyone using Visio Logic for programing?

    we use the Alerton system. If so I'm tring to write a stencil for cfm.
    The equations are

    CFM=V * A

    CFM Cubic Feet Per Minuite
    V (Velocity)=...
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    1
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    914

    I believe alerton will sell it to you, You'll...

    I believe alerton will sell it to you, You'll need there key to make it work, so I don't believe a copy would work. Additionally several versions have been updated since the 1.1
  22. Thread: trane

    by kempdawg34
    Replies
    2
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    948

    what are you trying to do with it? Looks like a...

    what are you trying to do with it? Looks like a heat/cool programable with night setback and lcd indicator, you should be able to replace it with any 019b series stat. I have a tech manual on the...
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    2,642

    United States Navy 1981-2002 AEC, HS-75, HSL-94,...

    United States Navy 1981-2002 AEC, HS-75, HSL-94, NAS Glenview, NAS Moffett Field, VF-201, VFA-201. Miss it every day.
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    7,668

    Trane RTU MD# YCD180B4LFDE OAT=95 IAT= 75 ...

    Trane RTU MD# YCD180B4LFDE

    OAT=95 IAT= 75

    Cir#1
    Suction Pressure=62
    Suction Temp=35.6
    Suction Line Temp =60
    Liquid Pressure=276
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    836

    Humidity

    Humidity
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