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  1. Replies
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    305

    I just wanted to update this post to share the...

    I just wanted to update this post to share the fix. Apparently we didn't have the right version of the Tcom driver.
  2. Replies
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    253

    I've used controllers to replace roof top...

    I've used controllers to replace roof top controls. It requirea a very configurable controller.
  3. Replies
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    550

    The voltages look good for the N-2 buss. I would...

    The voltages look good for the N-2 buss. I would suspect something with the S-4.
  4. Replies
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    305

    Jace to Easy IO controller

    We have just ordered some Jaces with the Tcom driver. Having issues with communications. Does it hook to the second port of the Jace. Help!!!!!!
  5. Thread: JCI

    by simux
    Replies
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    828

    You could have a back up NCM and workstation...

    You could have a back up NCM and workstation ready to go if anything happens. Makes it look like your prepared and such!!!!
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    721

    Reasons

    1. The fan air flow switch is inoperative during the weekend and you don't want to call the maintenance person in at overtime rates.

    2. You want to shut down all the air handlers during an...
  7. Replies
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    721

    Thanks

    Thanks man, I really needed a solution to permanent overrides!!!!
  8. Replies
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    330

    Thanks Jay_T

    Thanks Jay_T
  9. Replies
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    330

    Niagara AX Pointloop

    We have Vykon Jace's and would like some basic settings that work for Loop Control. We never really got that detailed during the AX certification course and I've struggled to stabilize the air...
  10. My question is which Metasys are you talking...

    My question is which Metasys are you talking about. PMI or a NAE?
  11. Direct N-2 Buss Connect Cable

    Direct N-2 Buss Connect Cable

    N-2 connect cable

    1. (Serial Port Connector. 5 to N2+, 2 to N2-, and 3 to ref, with a 470 ohm resistor between 2 and 5.

    2. Materials Old Serial cable, 470 Ohm...
  12. (X-9100

    I remember if you didn't have the original download files then you wouldn't have the tags. What that meant is that you could upload the program but the names were generic. So your sitting in front of...
  13. Replies
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    4,204

    Hey Stevo, will the S4 Open: Bacnet Router pick...

    Hey Stevo, will the S4 Open: Bacnet Router pick up DCM's?
  14. Replies
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    3,199

    I know this is a very old post, but i was...

    I know this is a very old post, but i was wondering how the direct connect cables worked out for you.
  15. Replies
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    492

    Thanks guys, I really appreciate the posts!!!!

    Thanks guys, I really appreciate the posts!!!!
  16. Replies
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    561

    It's so funny I always was told that it was just...

    It's so funny I always was told that it was just about impossible for pumps to have the same run time. Although i have seen it happen and because of that I put in a sub routine that selects one of...
  17. Replies
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    492

    Jace-300 E versus Jace-600

    Trying to determine whether to get the Jace-300 or Jace-600. They seem to do about the same thing and all.
    Just wondering the good and bad of both these controllers.
  18. The vav box needs a reverse acting signal to...

    The vav box needs a reverse acting signal to work. The reason for the reversing relay is because the volume controller reverses the signal as well as sets your min and max air flows. So when the...
  19. Replies
    3
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    876

    There are so many ways that the old school vav...

    There are so many ways that the old school vav boxes can be controlled... Anyways, the main thing to remember is the control action and whether you need direct or reverse acting for a control...
  20. Replies
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    876

    The diverting relays put the system in either...

    The diverting relays put the system in either summer (18 psi) or winter mode (23Psi). Then when in the winter mode the pneumatic signal from the Tstat is reversed and is fed into a low signal...
  21. Replies
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    10,663

    I also started out on pneumatics controls and...

    I also started out on pneumatics controls and then into ddc controls. I still prefer pneumatic actuators because of their power and ease of replacement. I'm so glad I came from the era of pneumatics...
  22. Thread: New/ not Virgin

    by simux
    Replies
    10
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    1,063

    Basics

    First off if you were to go through a design and add up all the max cfms in a building you would
    find out at maximum fan you would not have enough cfm to satisfy all the boxes. So it's really ...
  23. I think the main point is that some people are...

    I think the main point is that some people are driven to solve problems and the one's that can't blame others.
  24. Thread: BAS System

    by simux
    Replies
    9
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    1,319

    BAS

    If you make sure to get all the software, configuration tools, passwords, etc...and anything else required you will only be locked into the climate system for now. Later on you run another network...
  25. Thread: BAS System

    by simux
    Replies
    9
    Views
    1,319

    I think the Niagara Ax framework is the way to...

    I think the Niagara Ax framework is the way to go. I have a controls back ground and i'm also a facility manager. Once you have the Niagara system in place then you can replace the existing controls...
  26. Replies
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    5,425

    I remember these systems from back in the day....

    I remember these systems from back in the day. The fan coil units had aquastats that would determine how the thermostat responded. Basically if the water was above a certain temperature then the...
  27. Replies
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    4,929

    Have you considered working in maintenance. You...

    Have you considered working in maintenance. You at least know where your going to each morning. Also with your skills, you would be very valuable to an organization. Just think they wouldn't have to...
  28. Replies
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    1,465

    I seem to remember the "Systems" side were the...

    I seem to remember the "Systems" side were the guys doing the big installs. I remember when they told the Systems guys that they would be on salary and keys/badges hit the bosses desk as they walked...
  29. Replies
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    1,465

    Being a systems technican would be a good job if...

    Being a systems technican would be a good job if it's hourly. I would not want to be on salary working crazy hours.
  30. If you have an NCM with Metasys, then you can...

    If you have an NCM with Metasys, then you can copy the files and rename them to an excel format./
  31. Replies
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    2,435

    I remember taking over a Metasys building and...

    I remember taking over a Metasys building and found the NCM had crashed and everything was in manual control. Of course if your front-end doesn't work then the controllers will not have commands to...
  32. Replies
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    5,425

    I worked on systems back in the day that could...

    I worked on systems back in the day that could either be in heating or cooling. The systems had to be manually switched over for the season. Between the two seasons we would have a (no-heat no-cool)...
  33. Replies
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    2,435

    I would figure out how the system was keeping...

    I would figure out how the system was keeping your units from running. That way you can at least get the units running!!!! Are the unit controlled from a motor control center (MCC)or just a...
  34. Replies
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    2,301

    I've had to go to each controller and make sure...

    I've had to go to each controller and make sure the N-2 bus was ran right. Probably the only way to make sure your N-2 bus is wired right. All it takes is one person that didn't know what they were...
  35. Thread: Niagara 4

    by simux
    Replies
    6
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    1,301

    Like rounded corners!!!!

    Like rounded corners!!!!
  36. Thread: Niagara 4

    by simux
    Replies
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    1,301

    Niagara 4

    What's everybodys take on Niagara 4?
  37. Replies
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    6,244

    I totally agree with using a Niagra Tridium based...

    I totally agree with using a Niagra Tridium based system. I would not lock yourself into a proprietary based system if you want control. Not sure how your organization is set up but I would consider...
  38. Replies
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    670

    Honeywell EBI R410.2. So far it's just one...

    Honeywell EBI R410.2. So far it's just one point!!!
  39. Replies
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    670

    EBI and R7044 Controller

    I have an odd problem with a Honeywell EBI system controlling R-7044 controllers. The fan status always reads off and if you try to override the point it reverts back to off. I had a thought that...
  40. Pneumatic Sensor

    Sen = Sensor Sensitivity
    Span = Span of the sensor
    PS = Sensor Pressure
    TM = Temp/ Condition
    Base = Start point of sensor

    Sen = 12/Span
    PS = (TM-Base)(Sen) + 3
    TM = (PS - 3) (divided by...
  41. Replies
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    4,256

    I've worked on both pneumatic damper actuators...

    I've worked on both pneumatic damper actuators and electronic damper actuators. The biggest problem with pneumatic actuators is water in the lines and leaks throughout the facility. Electronic...
  42. Replies
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    2,352

    Good reason to make sure as a building owner or...

    Good reason to make sure as a building owner or representative to own all the software, configuration tools, adapters, etc... Otherwise you could be locked into a single provider.
  43. Replies
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    1,785

    Watched several of these units freeze the heating...

    Watched several of these units freeze the heating coil. Then everyone would say that can't happen because it doesn't get cold. The main thing is to have is an interlock which doesn't allow the face...
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    1,712

    Dressing neatly is a sign that you care. Also...

    Dressing neatly is a sign that you care. Also remember to take care of your shoes. I would also take the time to ask about on call requirements, travel, training, and vacation time.
  45. Replies
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    17,218

    One of the biggest problem with pneumatic...

    One of the biggest problem with pneumatic thermostats is when people in a room start tweaking the bi-metal strips. They learn they can get more heat if the thermostat hisses. I remember having to...
  46. Replies
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    1,373

    http://www.google.com/url?sa=t&rct=j&q=&esrc=s&frm...

    http://www.google.com/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=1&cad=rja&ved=0CCYQFjAA&url=http%3A%2F%2Fcustomer.honeywell.com%2Ftechlit%2Fpdf%2F77-0000s%2F77-E1100.pdf&ei=hSnwUrSXGoPYoASczoLQCg&u...
  47. Replies
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    908

    Try this pdf

    http://www.mass.gov/eohhs/docs/dph/environmental/iaq/ventilation-schools-2.pdf
  48. Replies
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    17,218

    Make sure you have supply air dry and oil free. ...

    Make sure you have supply air dry and oil free. A properly sized air dryer and a coalescing oil removal filter as well as an activated carbon oil
    vapor removal filter.
  49. Replies
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    17,218

    Back in the day we could also use a chart...

    Back in the day we could also use a chart recorder monitoring temperature and see how the thermostat reacts through the day. Then we could recalibrate as necessary to achieve our setpoint. Then once...
  50. Replies
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    1,073

    We would put common are thermostats in boxes...

    We would put common are thermostats in boxes placed into the wall with slots on them. Then the only way you could adjust the setpoint would to remove the cover. Honeywell TP970 Series14002424...
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