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  1. Replies
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    603

    Well, that's good, I'm not going nut. I'm...

    Well, that's good, I'm not going nut.

    I'm quite set at this point to go with another dealer but mystery like this bugs me. I have emailed him back and ask for the specific model number and so far...
  2. Replies
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    603

    So does anyone ever heard of this Coleman 88%...

    So does anyone ever heard of this Coleman 88% furnace?
  3. Replies
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    603

    The mystery 88% furnace + liner question

    Ok guys, I'm getting bids on replacement of a 40yo gas furnace... nothing surprised me so far but one local contractor is having me scratching my head. I need a pro in residental system to set me...
  4. Replies
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    821

    Yes, I can confirm the status light was off. I...

    Yes, I can confirm the status light was off. I didn't notice it until it came back on and I was like... hey, that's different...

    Oh, I'm sorry, should add I did power off before pulling the...
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    821

    Thanks for the help, I got the thing going away...

    Thanks for the help, I got the thing going away from the factory dude showed up.

    I already tried all the above including trying to connect with Datamate and Hyperterminal. Finally, I said the...
  6. Replies
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    821

    Problem with Siemens MEC

    I think the model is 210 FE.

    Anyhow, lost ethernet communication with it this morning, came back after a power cycle then went offline again and I couldn't get it up again.

    Also tried going to...
  7. Replies
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    829

    Native Modbus VAV Controler?

    I'm looking for Modbus VAV Controller. The network will be small so modbus limitation is not a problem and I will be integrating it with industrial network. So far I have found one at CW Industry,...
  8. Replies
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    907

    I would like to have a PDF version of the TEC...

    I would like to have a PDF version of the TEC manual if anyone got one, thanks.
  9. Replies
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    1,742

    These VAV are about 14 years old and yes, I think...

    These VAV are about 14 years old and yes, I think they are all conical shaped. Feedback is nice to have but I think if I can replicate the calibration program it should be just fine. There is dP...
  10. Replies
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    1,742

    I'm sure TEC is just as good as any other VAV...

    I'm sure TEC is just as good as any other VAV controller. Our system is showing its age in other places as well at DPU panel, BMC, etc... I like to use this oppertunity to move toward an open...
  11. Replies
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    1,742

    Thanks, that's what I'm looking for. I can...

    Thanks, that's what I'm looking for.

    I can easily duplicate that functionality in a PLC using a pair of DO. This way I can use the same VAV and my home brew controller.
  12. Replies
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    1,742

    Thanks, it makes more sense now. So I guess the...

    Thanks, it makes more sense now. So I guess the position I'm seeing when I use Datamate Base (Siemens) is just an estimate rather than actual feedback.

    I post in another thread that I want to go...
  13. Replies
    14
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    1,742

    How are VAV damper controlled?

    Ya, I know, very basic question...

    We got Trane VAV units controlled with Siemen TEC (Terminal Equipment Controller). Looking on the wiring diagram the damper is wired to DO (digital output). ...
  14. Aw, shucks... I was afraid of that. Thanks for...

    Aw, shucks... I was afraid of that. Thanks for the info though.

    Yes, we do have a few MEC and BMC as well and I think I can still access them through Database Mate even without Insight, right?
    ...
  15. Help on Integrate Siemens Apogee with Control Network

    I'm hoping someone familiar with the Siemens BMS can give me some advice.

    We got a factory that is currently using Siemens BMS with Insight frontend. Most of the place is heated by MAU that go...
  16. Replies
    12
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    1,243

    IF he got a properly worded contract, if not... ...

    IF he got a properly worded contract, if not...

    In Oregon, as an example, there were so many lawsuit and dispute on buried oil tank the state made law to require the seller fix the problem.

    I...
  17. Replies
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    4,728

    WoW! What's the story behind the pics?

    WoW!

    What's the story behind the pics?
  18. Replies
    15
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    8,608

    Huh, something must be lost in translation. You...

    Huh, something must be lost in translation. You think I was making that up, or?
  19. Replies
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    8,608

    Got an email on new post in this thread... The...

    Got an email on new post in this thread...

    The problem I mentioned was resolved. Turned out the HSI was mis-aligned.
  20. Replies
    14
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    1,625

    Have an exhaust fan installed regardless. It's...

    Have an exhaust fan installed regardless. It's INSANE to not have one in a newly built house, just INSANE. Make me wonder what else this builder skimp on?

    Nope, I have no idea how this creates...
  21. Replies
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    961

    ^^^^^ wHaT IS ThaT?! ^^^^^

    ^^^^^ wHaT IS ThaT?! ^^^^^
  22. Replies
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    2,581

    I think this is much to do about nothing. First,...

    I think this is much to do about nothing. First, there is no evidence to suggest that your furnace is not operating at the highest efficiency. Not to bash you, but your 'test' is meaningless.
    ...
  23. Replies
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    2,493

    Some good info here: ...

    Some good info here:

    http://www.basementsystems.com

    [Edited by Lusker on 01-27-2006 at 09:46 PM]
  24. Replies
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    3,068

    Agrees with craig1. It maybe the standard way...

    Agrees with craig1.

    It maybe the standard way of expressing efficiency over there. However AFUE is not a "TRUE" efficiency either.
  25. Replies
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    3,068

    Oh, I also like to add, if this is how they...

    Oh, I also like to add, if this is how they describe efficiency then all the 90% + condensing furnace in the USA would likely be above "100% PLUS" as well.

    Now someone answer me, why do people...
  26. Replies
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    3,068

    Ok guys, I just read the PDF quickly. Most high...

    Ok guys, I just read the PDF quickly. Most high school chemistry/physic teacher can tell you they are playing with numbers.

    Note the following paragraph from the PDF:

    "The net calorific value...
  27. Replies
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    3,068

    Stupid engineer here... unless I'm missing...

    Stupid engineer here... unless I'm missing something, don't the same physical law applies over in Germany as well?
  28. Water Heat could be one reason. Also, many local...

    Water Heat could be one reason. Also, many local utilities offer free energy audit.
  29. Replies
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    hey Ryan, lucky post # :) For safety reason...

    hey Ryan, lucky post # :)

    For safety reason alone, I would it replaced, if not now, budget for it later. Residential boiler is hard to get service for. You do know the historical reason for...
  30. I was like huh, no combustion air intake then I...

    I was like huh, no combustion air intake then I looked at the XV90 at home and go... OH MY GOD.

    Can't see return air from the pics.
  31. Replies
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    3,086

    I asked about the use of H.P. in Seattle before...

    I asked about the use of H.P. in Seattle before and someone reminded me that HP is a lot more expensive to maintain.. just something to keep in mind. Not sure about rules for posting company name...
  32. Replies
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    1,395

    There used to be a section on this forum for the...

    There used to be a section on this forum for the Pros to offer their service. What happened to it? The "Find a Contractor" thing appear to be very limited.
  33. Replies
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    1,271

    Pico is not a full PLC, more like a *smart*...

    Pico is not a full PLC, more like a *smart* relay. It is not made to talk to anything except through hard-wire, ie wire output to input or vice-versa.

    some Pico stuff can be found here:
    ...
  34. Bel-Red is huge on the Eastside but I hear horror...

    Bel-Red is huge on the Eastside but I hear horror stories... I used UMS out of Redmond, they are quite good, even the city inspector said so.
  35. Replies
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    Dumb question: What's the purpose of a flue...

    Dumb question: What's the purpose of a flue liner? To make the exhaust smaller?
  36. Well, I am a home-owner who sought advise here...

    Well, I am a home-owner who sought advise here before. These guys are more than helpful otherwise they won't be here. I am not against DIY but some basic skill is required.. like READING. READ THE...
  37. Replies
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    596

    Holy cow... why would someone call China?!

    Holy cow... why would someone call China?!
  38. Replies
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    1,689

    wow....

    red, the number you shown surpised me.

    So how come I don't see more Heat Pump in the Seattle area? Come to think of it, Seattle does have the prefect temperture for a Heat Pump... PM me the...
  39. Replies
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    8,608

    Anyone? It is acting up again and this time...

    Anyone?

    It is acting up again and this time I took the top cover off to look at it. I noticed some water/rust stain below the ID fan and some "ash" in the burner window. The "click" sound...
  40. Replies
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    I will call for the installer to come out next...

    I will call for the installer to come out next week for a tune-up but since this is a intermitten problem I am hoping you guys with your pooled experience can offer me some possible thing to look at...
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