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  1. Replies
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    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.
  2. Replies
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    352

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

    Thanks guys, I really appreciate the posts!!!!
  3. Replies
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    428

    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...
  4. Replies
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    352

    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.
  5. 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...
  6. Replies
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    690

    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...
  7. Replies
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    690

    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...
  8. Replies
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    9,851

    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...
  9. Thread: New/ not Virgin

    by simux
    Replies
    10
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    842

    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 ...
  10. 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.
  11. Thread: BAS System

    by simux
    Replies
    9
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    977

    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...
  12. Thread: BAS System

    by simux
    Replies
    9
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    977

    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...
  13. Replies
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    4,172

    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...
  14. Replies
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    3,931

    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...
  15. Replies
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    1,055

    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...
  16. Replies
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    1,055

    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.
  17. 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./
  18. Replies
    11
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    1,447

    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...
  19. Replies
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    4,172

    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)...
  20. Replies
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    1,447

    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...
  21. Replies
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    1,822

    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...
  22. Thread: Niagara 4

    by simux
    Replies
    6
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    1,004

    Like rounded corners!!!!

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

    by simux
    Replies
    6
    Views
    1,004

    Niagara 4

    What's everybodys take on Niagara 4?
  24. Replies
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    5,028

    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...
  25. Replies
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    520

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

    Honeywell EBI R410.2. So far it's just one point!!!
  26. Replies
    2
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    520

    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...
  27. 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...
  28. Replies
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    3,406

    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...
  29. Replies
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    2,049

    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.
  30. Replies
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    1,518

    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...
  31. Replies
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    1,469

    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.
  32. Replies
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    15,697

    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...
  33. Replies
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    1,225

    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...
  34. Replies
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    796

    Try this pdf

    http://www.mass.gov/eohhs/docs/dph/environmental/iaq/ventilation-schools-2.pdf
  35. Replies
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    15,697

    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.
  36. Replies
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    15,697

    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...
  37. Replies
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    885

    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...
  38. Replies
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    15,697

    This may help, I recently did a cabinet unit...

    This may help, I recently did a cabinet unit heater with a 5 to 10 PSi normally open hotwater valve and a pneumatic to electric switch that brings on the fan. I left the sensitivity at 2.5 PSi change...
  39. Replies
    4
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    976

    Not sure if there is just one book....

    Not sure if there is just one book. http://cgproducts.johnsoncontrols.com/default.aspx?main.aspx=&2=
  40. Replies
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    14,475

    If it's the old N-2 devices I would read the...

    If it's the old N-2 devices I would read the Metasys Network Technical Manual 636 Network Communications Section
    Technical Bulletin
    Issue Date 1199
  41. Replies
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    1,229

    I always like to have a new AHU controller on...

    I always like to have a new AHU controller on hand in case it won't take a down load!
  42. Replies
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    3,302

    Actually the most important thing to do is hide...

    Actually the most important thing to do is hide them so no one else can find them quickly. So when you get a call you can look like a genius because you know where the power supplies are located. Job...
  43. Thread: Controls Novice

    by simux
    Replies
    4
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    795

    Sure!!!

    Sure!!!
  44. I think I know what your looking for in a...

    I think I know what your looking for in a Facility Manager. I use to work for Johnson Controls and now I'm a Director for a facility. Althought we have an old Honeywell system thats on its last leg....
  45. Replies
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    1,374

    Check invoices to control companies. Normally a...

    Check invoices to control companies. Normally a person who understands controls cuts down on the number of calls etc...
  46. Replies
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    1,039

    My biggest concern is to own all the programming...

    My biggest concern is to own all the programming software and tools so you can do the work yourself or bring in multiple contractors.
  47. Replies
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    935

    PLC is normally for more critical processes, such...

    PLC is normally for more critical processes, such as manufacturing. DDc is usually for HVAC control. So with that you have to weigh the cost and PLC is normally more expensive.
  48. Replies
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    542

    I remember going out and throwing water on them...

    I remember going out and throwing water on them to get the rest of the snow and ice off the sidewalks.
  49. Replies
    10
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    1,344

    The point is that you could accomplish almost any...

    The point is that you could accomplish almost any control strategy with enough controllers, adapters, and ingenuity. I can remember multiple large wall cabinets with hundreds of devices with...
  50. Replies
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    1,344

    Actually, for more complex pneumatic systems they...

    Actually, for more complex pneumatic systems they would do master submaster control with receiver controllers and control point adjustment.
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