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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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    1,760

    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)...
  3. Replies
    9
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    2,136

    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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    1,424

    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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    1,850

    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
  6. Replies
    14
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    1,986

    78.6

    78.6
  7. Replies
    14
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    1,986

    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...
  8. Replies
    11
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    2,138

    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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    1,986

    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...
  10. Replies
    11
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    2,138

    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...
  11. Replies
    11
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    2,138

    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...
  12. Replies
    15
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    3,641

    Thanks

    Thanks

    Kempdog sends
  13. Replies
    15
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    3,641

    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...
  14. Replies
    3
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    1,128

    Siemens Apogee / Bacnet

    Is the Siemens/Apogee a true BACNET system?
  15. Replies
    2
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    3,111

    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 ORís. The original return VAV's have not...
  16. Replies
    2
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    799

    Lighting Graphics

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

    respectfully bob kempsell
  17. Replies
    7
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    907

    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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    907

    Appogee info ???? anything

    Appogee info ???? anything
  19. Replies
    7
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    907

    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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    1
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    660

    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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    984

    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
    Views
    988

    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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    3,164

    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.
  24. Replies
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    8,185

    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
  25. Replies
    6
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    899

    Humidity

    Humidity
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    1
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    927

    had an ICP gni080a012ain, 1992 model that after...

    had an ICP gni080a012ain, 1992 model that after performing several test and combustion analysis plus flame stick test like you mentioned, with the same results breached heat exchanger. I believe the...
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    3,512

    That's Funny !!!!!!

    That's Funny !!!!!!
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    1,737

    sounds to me like there is a high resistance...

    sounds to me like there is a high resistance short to ground on the 120 side robing the transformer. Or pwr on the ground from another circuit. Secure the outside unit at the c/b box and start...
  29. Thread: Garage Heat

    by kempdawg34
    Replies
    9
    Views
    908

    how abot a wood stove?

    how abot a wood stove?
  30. Thread: JANITROL

    by kempdawg34
    Replies
    14
    Views
    1,533

    Ever think we get so many Goodman / Janitrol...

    Ever think we get so many Goodman / Janitrol calls cause there so many installed all over the country. I'd like to know by volume what mfg sells the most equipment. I'd bet the consumer will pay...
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    2,792

    Noticed that there where no proud texans in the...

    Noticed that there where no proud texans in the lot so here I am Fort Worth Texas
  32. Replies
    51
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    3,690

    sounds like mabey yor fan speed is mis configured...

    sounds like mabey yor fan speed is mis configured have the install crew check it
  33. There are several other indicators that...

    There are several other indicators that restricted air flow is a problem.

    1. Is the indoor coil icing over?
    2. excessive drainage / excessive water
    3. What was the technicians presures / SH...
  34. Replies
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    2,117

    Any chance that you have a moisture switch or a...

    Any chance that you have a moisture switch or a secoundary drip pan float switch? If so that will mess up things
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    4,424

    R12 Rules, clearly the best post on this site,...

    R12 Rules, clearly the best post on this site, have it in my office. All new guys must read
  36. you could do that but I would clean the IDB...

    you could do that but I would clean the IDB blower assy first and make sure there were no other ristrictions in the air flow system
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