Search:

Type: Posts; User: jc47

Page 1 of 2 1 2

Search: Search took 0.01 seconds.

  1. Thread: Trane BCU's

    by jc47
    Replies
    2
    Views
    749

    Do you have any more information, like what model...

    Do you have any more information, like what model BCUs are they? Are the BCUs networked together, if so, do you know if it is arcnet, ethernet, coax, twisted pair, etc? Is there a front end or...
  2. Replies
    19
    Views
    1,991

    How is changing chiller setpoints, start/stop,...

    How is changing chiller setpoints, start/stop, etc. going to 'destroy a system'? I don't see anyone wanting to hack into a network just to change a chiller setpoint. If you wanted to do real damage...
  3. Thread: Varitrane 3 VAV

    by jc47
    Replies
    0
    Views
    517

    Varitrane 3 VAV

    Does anyone have or know where to find PDF manuals/product literature for these VAV's? They are Varitrane 3 with heat, no fan.
  4. Thread: UPCM question

    by jc47
    Replies
    8
    Views
    783

    I've never had it lock up. I use Windows XP and...

    I've never had it lock up. I use Windows XP and I often have many other programs running at the same time. It may be a problem with your operating system or dos subsystem. You may need to...
  5. Replies
    13
    Views
    1,566

    It is really a tradeoff between efficiency and...

    It is really a tradeoff between efficiency and good filtration. Really, you could run the unit with no filters and it will be even more efficient, at least for the short term. Also like mentioned...
  6. Thread: Trane Summit ems

    by jc47
    Replies
    14
    Views
    1,899

    VNC software (free open source software that...

    VNC software (free open source software that remotely controls the host pc) sounds like a good solution in this case. Other pay subscription software would probably work fine also, but it sounds...
  7. Thread: Trane Tracker

    by jc47
    Replies
    10
    Views
    1,680

    Are you talking about setpoints that would...

    Are you talking about setpoints that would normally be set at the unit controller and you want to control them from the tracker panel; or are these thumbwheel setpoints?
  8. Replies
    22
    Views
    1,428

    Sorry, I was talking about the earlier post about...

    Sorry, I was talking about the earlier post about webops.
  9. Replies
    22
    Views
    1,428

    That's insane. Do you get similar functionality...

    That's insane. Do you get similar functionality to Summit?
  10. Replies
    8
    Views
    14,065

    I'd say about 300 watts per computer and 100 per...

    I'd say about 300 watts per computer and 100 per monitor while in use as a rough estimate. It's going to depend a lot on what is in the computers, and whether you are using LCD or CRT monitors...
  11. Thread: Summit Dial Out

    by jc47
    Replies
    13
    Views
    1,380

    With 11 it will work, but it will lock up after...

    With 11 it will work, but it will lock up after (I think) 10 consecutive hours of being open. If you close the program, you get another 10 hours.

    I'd guess that trane would have to let you...
  12. Thread: Summit Dial Out

    by jc47
    Replies
    13
    Views
    1,380

    If you only need to monitor alarms, you can set...

    If you only need to monitor alarms, you can set up pager alerts in summit to dial your pager when there is an alarm. It isn't as good as being able to bring up the whole site remotely, but it would...
  13. Replies
    2
    Views
    1,373

    OK, that doesn't sound too unreasonable, thanks. ...

    OK, that doesn't sound too unreasonable, thanks. What about the Network Service Tool package, is there anything that can be done with it that cannot be done with Comfortview? From the literature...
  14. Replies
    2
    Views
    1,373

    Does anyone know how much (approx.) Carrier...

    Does anyone know how much (approx.) Carrier charges for this software? Thanks.
  15. Replies
    23
    Views
    1,643

    Oh, right around the corner then. No, I'm not...

    Oh, right around the corner then. No, I'm not with GT. I don't really like dealing with them either, but sometimes we have to for an occasional part, etc. One of my friends got a job with them in...
  16. Replies
    23
    Views
    1,643

    Also, I see from your profile you are in Ohio. ...

    Also, I see from your profile you are in Ohio. Where is this job at (just curious)? I am in Cleveland.
  17. Replies
    23
    Views
    1,643

    Glad to hear you got it working. I'm not sure...

    Glad to hear you got it working. I'm not sure about the 'OA slope', it sounds like something someone else set up; but the charts I was talking about are in "Programming Guide for Universal PCM"...
  18. Replies
    23
    Views
    1,643

    As long as you don't have anything that is...

    As long as you don't have anything that is defined as an 'analog setpoints' on the left, you can do it. The value of a setpoint must be set by tracer or third party control outside of the upcm. You...
  19. Replies
    23
    Views
    1,643

    If you defined your "primary set point" as an...

    If you defined your "primary set point" as an actual analog set point, that may be your problem. Set points cannot be modified or set by the pcl routines. If you always want it to be 'secondary +...
  20. Replies
    23
    Views
    1,643

    It should work, can you post your code?

    It should work, can you post your code?
  21. Replies
    23
    Views
    1,643

    It just means that you can't use a point in the...

    It just means that you can't use a point in the pcl routines before you create it. You can create new points and add them to exsisting routines, so long as you define them first, i.e. you won't have...
  22. Replies
    23
    Views
    1,643

    Also, I'd proceed very slowly and carefully until...

    Also, I'd proceed very slowly and carefully until you get used to the program, since it is possible to erase everything in the UPCM using this program. Be sure to upload and back up before doing...
  23. Replies
    23
    Views
    1,643

    You should be able to select a UPCM without being...

    You should be able to select a UPCM without being connected. After you select, it should ask you if you want to connect. The only reason I can think of that it wouldn't work is if you are using...
  24. Replies
    23
    Views
    1,643

    I don't think any passwords can be set for the...

    I don't think any passwords can be set for the UPCM itself. You can set a password to access the edit software, and for the keypad on the 'custom status display' if the UPCM has this, but I don't...
  25. Replies
    6
    Views
    634

    In my opinion, the important part is that "If the...

    In my opinion, the important part is that "If the valves don't close and the heater stays on or the pump fails, the heater will cut out on thermal. Minor cleaning is required as long as the manual...
  26. Replies
    6
    Views
    634

    I don't get it, the ground and the neutral should...

    I don't get it, the ground and the neutral should both be essentially at the same voltage. Why do you need to use the ground to get 120v? Couldn't you just move it to the neutral? It probably...
  27. Thread: co2 sensor ?

    by jc47
    Replies
    17
    Views
    2,176

    This is a good idea. I would also think twice...

    This is a good idea. I would also think twice about co2 controlled ventilation in a restaurant, especially if there is any smoking inside. In a restaurant type environment, you may not want to...
  28. Thread: upcmedit

    by jc47
    Replies
    7
    Views
    853

    You should have added this to the other thread...

    You should have added this to the other thread instead of starting a new thread if you were having problems. The people that tried to answer your original question will then get an email alert that...
  29. Thread: Trane Intelipak

    by jc47
    Replies
    6
    Views
    1,020

    To me, they don't seem to be much more (or less)...

    To me, they don't seem to be much more (or less) complicated than other hvac units. From what I've seen they are very reliable as long as regular maintenance is done. I have some manuals, but they...
  30. Thread: trane upcm edit

    by jc47
    Replies
    3
    Views
    743

    You need to copy the files into the upcmedit data...

    You need to copy the files into the upcmedit data directory. It will be something like c:\upcmdata. It should be a directory where you have read/write access. You may also have to name the upcm in...
  31. Replies
    18
    Views
    1,074

    'Ohm's law' only works for circuits (or parts of...

    'Ohm's law' only works for circuits (or parts of circuits) that contain ONLY linear resistors. If you add anything else to the circuit besides linear resistors, then the answer to the question "If...
  32. Replies
    4
    Views
    1,967

    It isn't as simple as a media converter since the...

    It isn't as simple as a media converter since the packets need to be translated to Bacnet/IP. You would need a BACnet over Ethernet (or BACnet over Arcnet) to BACnet/IP router. I don't think you...
  33. Replies
    15
    Views
    1,586

    Did you check the FLA and service factor on the...

    Did you check the FLA and service factor on the replacement motors? Are they capacitor start/run motors? If so, the capacitor and/or wiring requirements can be different from motor to motor.
  34. Replies
    22
    Views
    1,931

    In the HVAC business, I can't imagine that one...

    In the HVAC business, I can't imagine that one would need a meter rated higher than Category III. According to the description on Fluke's website, any HVAC and related equipment would be Category...
  35. Replies
    19
    Views
    4,572

    It is my understanding that it isn't absolutely...

    It is my understanding that it isn't absolutely necessary to remove every last bit of oil if you will be using ester oil. The ester oil supposedly does not react to the r12 or the mineral oil at...
  36. Replies
    6
    Views
    1,411

    No, for load calculations, you definitely want...

    No, for load calculations, you definitely want the power consumed (watts, etc.). Lumens are units for the actual light output.

    I'd say 1.5 w/sq. ft sounds about right for a typical office. If...
  37. Thread: hot wire ?

    by jc47
    Replies
    7
    Views
    1,039

    Is it 107 degrees C or F? It makes a big...

    Is it 107 degrees C or F? It makes a big difference; 107F would be completely normal, 107C sounds high.
  38. Replies
    4
    Views
    2,777

    The efficiency is probably going to depend a lot...

    The efficiency is probably going to depend a lot on where you are getting your steam from. If you have a steam boiler, it probably isn't going to be very efficient, but if the steam comes as a side...
  39. Replies
    7
    Views
    931

    You have to be sure that the capacitor is wired...

    You have to be sure that the capacitor is wired correctly to the motor. Check both the nameplate of the motor and any wiring diagrams on the case of the condenser for reference. Also, normally you...
  40. Replies
    10
    Views
    1,050

    Motors with sealed bearings usually still have...

    Motors with sealed bearings usually still have grease ports, because the same castings are used. I've seen people remove the plugs from these ports and install grease fittings, so it is possible...
  41. Thread: Wireless Modems

    by jc47
    Replies
    5
    Views
    753

    If you have a newer cell phone, it probably can...

    If you have a newer cell phone, it probably can be used as a modem. Assuming your phone supports this, you'll need to get a usb interface cable with the proper drivers. This isn't a great option...
  42. Thread: rs 485 to RJ 11

    by jc47
    Replies
    12
    Views
    1,342

    Yeah, those are great. The nice thing about the...

    Yeah, those are great. The nice thing about the PCMCIA rs232 is that you can interface with both rs232 and rs485 devices using an rs232/rs485 converter (cheap). The PCMCIA rs485 card will work fine...
  43. Thread: rs 485 to RJ 11

    by jc47
    Replies
    12
    Views
    1,342

    From a Comfort Controller manual that I have: ...

    From a Comfort Controller manual that I have: Pin 1 - 24vdc (you probably don't need this), Pin 2 Comm(+), Pin 3 Comm (gnd), Pin 4 Gnd, Pin 5 Comm (-), Pin 6 (gnd). All you should need is Comm...
  44. Thread: rs 485 to RJ 11

    by jc47
    Replies
    12
    Views
    1,342

    Yeah, except it is a little expensive, and an...

    Yeah, except it is a little expensive, and an RS232/RS485 converter isn't going to help you if you already have an RS485 port on your pc and need to connect to another RS485 port. There is no need...
  45. Thread: rs 485 to RJ 11

    by jc47
    Replies
    12
    Views
    1,342

    Unfortunately, those rj11 connectors usually...

    Unfortunately, those rj11 connectors usually don't use any type of standard connection. It can vary from manufacturer to manufacturer; especially with rs485. The pinout for the controller should be...
  46. Thread: IT WEB Setup?

    by jc47
    Replies
    17
    Views
    1,357

    Web hosting probably isn't going to be of any use...

    Web hosting probably isn't going to be of any use to you if all of the equipment that needs to be accessed is at your facility. You really don't need to pay for a domain name/dns service either. ...
  47. Thread: Electrolysis

    by jc47
    Replies
    7
    Views
    1,042

    Get a chemistry textbook; there should be a...

    Get a chemistry textbook; there should be a section on electrolysis in any good one. I haven't heard of electrolysis in a natural gas line though; there needs to be some type of electrolyte (such as...
  48. Replies
    16
    Views
    1,742

    The card is probably backward compatible. Is...

    The card is probably backward compatible. Is there a key between the 8 and 16 bit portions of the connector? I've seen other cards like this, and when installing them into an 8 bit slot, the part...
  49. Replies
    9
    Views
    902

    It is true that it isn't going to be economical...

    It is true that it isn't going to be economical to have windows that open (plus the actual windows are significantly more expensive); and it is also likely that the hvac system won't be able to keep...
  50. Replies
    5
    Views
    681

    I wouldn't think 100 feet would be a problem, but...

    I wouldn't think 100 feet would be a problem, but there are many factors that can affect the maximum length of a cable run. Radio interference, closeness to other cable runs, hi temperature, etc....
Results 1 to 50 of 70
Page 1 of 2 1 2
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event