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  1. I would look into the possibility of adding an...

    I would look into the possibility of adding an electro-mechanical start counter. I'm not going into details on an open forum. Do you have a trusted serviceman you can have look into it?
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    Has this setup ever worked well? When you said...

    Has this setup ever worked well?
    When you said "the blower motor", were you talking about a central blower, like an air handler? Or does this system have VAV boxes, each with its own fan?
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    Sorry, Klrogers. I wasn't copying you, just...

    Sorry, Klrogers. I wasn't copying you, just hunting and pecking while you were saying that... :cheers:
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    If it was my building, I would concentrate my...

    If it was my building, I would concentrate my efforts on restoring the current equipment to it's designed operation.
    I would expect the existing equipment to be capable of determining how to operate...
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    A few years ago a European member here started a...

    A few years ago a European member here started a thread about how, at that time, R11 was treated this way. Have an R11 chiller low on refrigerant? Either convert to new refrigerant or replace the...
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    Is this a correct application for duct heaters?...

    Is this a correct application for duct heaters? With heated air, from the furnace, being supplied to them? What is the temperature of the air entering the duct heaters? In the commercial world, I...
  7. Interesting thread. Does anyone know if the...

    Interesting thread.

    Does anyone know if the definition of "mixed air" changes with the presence of an economizer vs no economizer?
    Or between DX coils vs chilled water coils?

    I ask because,...
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    Thanks!

    Thanks!
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    Let's see if we can get this thread moved to a...

    Let's see if we can get this thread moved to a "Controls" forum. There are many members who visit there, who are very knowledgeable and experienced.

    I'll request it by clicking on the little "!"...
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    Good advice from Timebuilder about classes at the...

    Good advice from Timebuilder about classes at the local Trane office. They're held in my area, too.

    Maint. Super, I just remembered something else; this applies to Tracer Summit and maybe it also...
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    I believe the limits will be capable of having an...

    I believe the limits will be capable of having an effect with both the thumbwheel setpoint (with the thumbwheel enabled) and the Summit-programmed setpoint (with the thumbwheel disabled). It will...
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    Perhaps you could have Trane come on a trouble...

    Perhaps you could have Trane come on a trouble call; "won't change over from heating to cooling". My guess is that could take as little as an hour or so. Let them know that it is believed to be a...
  13. You may have noticed, but there are at least a...

    You may have noticed, but there are at least a couple of members here who are in the Caribbean.
    I don't know if it's possible to somehow do a search on the site to find them. Might be worth a try....
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    Funny, I became aware of this site much the same...

    Funny, I became aware of this site much the same way. I was searching for something, and this site was high up on the list of results.

    Unfortunately, I have found that it is not that uncommon for...
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    Sounds like you are headed down the right path,...

    Sounds like you are headed down the right path, Maint. Super. Well done!

    May I suggest you continue visiting this site, even if only to read? I have found that even after 30 years in the trade, I...
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    LOL!!! Hurtinhvac, that's got to be the best one...

    LOL!!!
    Hurtinhvac, that's got to be the best one of these I've seen.
    And your sig line works so well with it, too!
    Well done, sir, well done.
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    Very cool video! As far as which is my favorite,...

    Very cool video!
    As far as which is my favorite, I'm torn between the machine that sets out and picks up the highway lane barriers, and the last one - the home made automatic can crusher.
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    Yeah, working in commercial HVAC, you try to...

    Yeah, working in commercial HVAC, you try to forget some of the behind-the-scene stuff you see in the food industry.
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    Also, given the fact of the age of the equipment...

    Also, given the fact of the age of the equipment (<3 years on the controls, and micro controls on chiller) and the age of the building, it is very apparent that the building has been renovated. At...
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    Pictures would definitely help. Could you get...

    Pictures would definitely help. Could you get some kind of overall view of what I'd call the plant? One that includes the chillers, boiler, and associated piping.

    Model numbers of the equipment...
  21. I can understand that. You may want to start...

    I can understand that.

    You may want to start with researching the electrical output ratings of bike alternators. That could give you an idea of how feasible your target energy usage is.
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    Trane Tracer SC is, I believe, Trane's latest,...

    Trane Tracer SC is, I believe, Trane's latest, and current, control system. Unfortunately, I'm not familiar with it. I believe it would be helpful for you to get a Trane controls rep from your local...
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    LOL. And that's a long time to be feeling like...

    LOL. And that's a long time to be feeling like you've got to go to the bathroom, real bad. Ain't it?
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    The manual process you mention could be as simple...

    The manual process you mention could be as simple as a failed valve actuator. So that a normally automatic valve(s) is now required to be manually repositioned. That could a relatively inexpensive...
  25. There are already motorcycle rider air...

    There are already motorcycle rider air conditioners available. They utilize solid state technology. How do I know? Your question prompted me to think that maybe solid state would be preferable, so I...
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    What is the age of this building? I have not seen...

    What is the age of this building? I have not seen a building built with a "two pipe" system in the last 20 years or more. If that is indeed what you have, your job has become more difficult, IMO.. It...
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    Answer-Man, I think it was mentioned earlier...

    Answer-Man, I think it was mentioned earlier about the possibility of a ground detecting main. I once shut down the boiler/chiller plant of a textile mill by energizing a load that had a slight...
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    Unfortunately, it can be rather easy to be...

    Unfortunately, it can be rather easy to be intimidated by commercial equipment owners to not shut a machine down. And it can be difficult to determine when an owner is blowing smoke about it, or has...
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    I can only presume he meant "pulled the condenser...

    I can only presume he meant "pulled the condenser fan motor lead (or wire) off the condenser fan contactor". It's the only thing I can think of that makes sense.

    That is sometimes hard to avoid....
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    I could always use a laugh, which I did when I...

    I could always use a laugh, which I did when I realized my confusion. But I am kinda worried about why a vision of that other speedo popped into my head...
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    Well, it began to make sense once I figured out...

    Well, it began to make sense once I figured out what "speedo" and "Chry T&C" meant. I almost quit reading at "speedo"... :whistle:
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    Good to hear! But I'm not yet sure you have...

    Good to hear!

    But I'm not yet sure you have found the "Holy Grail" - that is, the control prints. I have seen it maybe once located in those binders, but usually it is "stand-alone". It almost...
  33. I remember years ago when a beach, in Spain - I...

    I remember years ago when a beach, in Spain - I think, had a catastrophic explosion of propane tanks on a beach during a national holiday, when the beach was full of people cooking out on their...
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    You're welcome. I have been on both sides of...

    You're welcome.

    I have been on both sides of this issue. First, as a chiller tech solving "chiller won't start" problems, only to find that some were actually building controls issues. And now,...
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    Also, many companies will agree to hold some...

    Also, many companies will agree to hold some on-site operator training on their system. There may be a charge involved.

    I would first attempt to find the control prints, or drawings.
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    The company that installed the current controls...

    The company that installed the current controls should have left a set of prints on site. Those prints should have a description of how the system is designed to operate. That description is called...
  37. WOW!! Although, I would have expected more...

    WOW!!
    Although, I would have expected more "missiles" like that one at the 3:30 mark.
    That was scary awesome!
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    I'm not a resi guy, but, in the commercial world,...

    I'm not a resi guy, but, in the commercial world, having to bleed air would have me looking at the make-up valve setting. Also called the PRV, or pressure regulating valve. Some portion could be in a...
  39. I'm the guy everybody's cussing at on the...

    I'm the guy everybody's cussing at on the highway, because I've got the ol' cruise control set at 1 mile per hour below the speed limit. So that I rarely have to change lanes to pass anybody else. My...
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    There should be at least one other protective...

    There should be at least one other protective device between the disconnect and the building main. It's failure to trip is significant, and is not your fault.
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    So what happens when power is restored after a...

    So what happens when power is restored after a power failure? I doubt the power company calls the clinic to warn them they are about to restore power to the neighborhood.
  42. That's a great idea, Buford!

    That's a great idea, Buford!
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    I left Trane 5 years ago. I was ready for a...

    I left Trane 5 years ago. I was ready for a change, and have no ill will towards them. You and I may be living in the same state. Feel free to ask me. Here, or PM, or Email (mine is in my profile).
  44. "...an additional floor above our units which...

    "...an additional floor above our units which houses heating and cooling equipment..."

    This, to me, implied an enclosed space. So, possibly boilers in there for heating a loop and a cooling tower...
  45. I'm not doubting that. Just putting another...

    I'm not doubting that. Just putting another possibility out there. It would be nice to know just what type of equipment is being discussed. We've been told heat pumps, but are they air to air or...
  46. I'm wondering if there are boilers supplying the...

    I'm wondering if there are boilers supplying the heat for the heat pumps' water loop...
  47. Looks like a classroom. Are you using your phone...

    Looks like a classroom. Are you using your phone and the internet to cheat?? :whistle:
  48. I'm a little confused by this. How many cooling...

    I'm a little confused by this. How many cooling towers? Does one supply a chiller? Does one supply the water source heat pumps? Does one supply a chiller and water source heat pumps? What is "DOAS"?
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    I understand and appreciate things like that....

    I understand and appreciate things like that. Well done!
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    Man! this thread is going out in at least three...

    Man! this thread is going out in at least three different directions! And I like it!

    If any of these discussions end up in it's own thread, please post a link if you don't mind. Thanks.
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