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  1. I might be able to save you some trouble. When a...

    I might be able to save you some trouble. When a breaker is tripped assume it was telling the truth and don't reset it to see if you get another result. Get your meter out and try to discern where...
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    They are far from hype. I installed 46 on a hotel...

    They are far from hype. I installed 46 on a hotel and in over ten years had two board failures and one compressor fail (because of the board). People would leave their rooms all day but first crank...
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    A lot of what you said is what is the effect on...

    A lot of what you said is what is the effect on the customer. System size is always a factor. Risk/reward is a business consideration. I agree that with little pressure drop, little affect. Problem...
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    The acid, like in a battery is an electrical...

    The acid, like in a battery is an electrical conductor. The compressor windings might not have been affected yet and the megger readings were through the acid.
    Not uncommon.
    Your right of course,...
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    $$$$$$$$$

    $$$$$$$$$
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    I believe you were taught right. Along with what...

    I believe you were taught right. Along with what you said there should be a way to test pressure drop so you know if it's maxed out.
    Then there is the economics a company has to consider and that's...
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    Depends on the type. I did work for an engineer...

    Depends on the type. I did work for an engineer that always wanted a felt core filter installed on new piping. Not everyone used nitro then and he was trying to keep the system clean.
    I have read...
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    Maybe you didn't you understand the process or...

    Maybe you didn't you understand the process or maybe I didn't enplane.
    Liquid might not get removed in a water contaminated system by just blowing some nitro through. Also there is no good way to...
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    I was born in Chicago and consider the city to...

    I was born in Chicago and consider the city to have the prettiest skyline in the world.
    I've fished Michigan a couple of times for salmon and had a ball. I've also lived on the chain in Wauconda,...
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    Ya hit the suds and the lead hits the a$$. I...

    Ya hit the suds and the lead hits the a$$.
    I mostly cook things that are in combo like gumbo or something and I let the wife cook the meat. She is a tech with the meat and does it with a timer also...
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    Ya maybe but I bet your boss would likely vote...

    Ya maybe but I bet your boss would likely vote for efficiency so you might be able run another call. It's really hard to collect high end calls. Just try it.
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    Because of the time spent, would you consider...

    Because of the time spent, would you consider alcohol as a shortcut next time?
    I know you're a tech head and might not answer until you have researched this. And that's a good thing.
  13. Well Crabnaster, as it seems the op is AWOL we...

    Well Crabnaster, as it seems the op is AWOL we might need to guess and maybe guess he was mistaken. He said the transformer was powered of a DO. Depending on the natural of the controller a more...
  14. Digital In, digital out, analog in, analog out. ...

    Digital In, digital out, analog in, analog out.
    When programming a controller most often the input is given to the controller and and it assigns an attribute and directs the information to an...
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    And how long did that take? I'm more concerned...

    And how long did that take?
    I'm more concerned with effectiveness. Because something will eventually work makes me want to find a better way.
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    I've been watching "The Donald" And would like...

    I've been watching "The Donald" And would like put this out there. "The Donald" is still a Democrat. I read the reporter that was with him in his last incarnation in the last election cycle and the...
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    JP, I was aware of the affect of alcohol with...

    JP, I was aware of the affect of alcohol with water but my research with compressor manufactures warned me of introducing alcohol to the system where the oil in the compressor might be exposed but...
  18. Noonbob, What's missing here is what is the DI....

    Noonbob, What's missing here is what is the DI. W/o this info no one can't make a judgement. I hope it's not line voltage to power the transformer. I don't like that. Too energetic.
    The answer is...
  19. Thread: Nest T Stat

    by hvacker
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    639

    Along that line if your decorating sucks have a...

    Along that line if your decorating sucks have a decorating pro come in and get rid of all your worn out furniture and bring substitute furniture to jazz the place up a bit. Of course the problem...
  20. Thread: Nest T Stat

    by hvacker
    Replies
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    639

    I did a bunch of resi AC installs in the 70's and...

    I did a bunch of resi AC installs in the 70's and the fun part was explaining how to set the T'stat. These were only Honeywell T87's. I would have to ask who the mechanic of the house was so I didn't...
  21. What's on the DI?

    What's on the DI?
  22. Replies
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    When I've had liquid water in a system I've...

    When I've had liquid water in a system I've pumped denatured alcohol into the system avoiding the compressor by isolating it as you don't want to contaminate the oil, then blowing the alcohol out...
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    If all you have is water vapor a simple sweep...

    If all you have is water vapor a simple sweep with nitro will do it. If you have liquid water nitro will have little affect.

    On a new piping install where the vac pump couldn't pull down I asked...
  24. Thread: AC maintenance

    by hvacker
    Replies
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    800

    I always wanted gauges with no hoses. I'm still...

    I always wanted gauges with no hoses. I'm still waiting for little transducers that go on directly.
    Every time hoses are hooked up there is refrigerant losses unless the pressure isn't released....
  25. Thread: Hot tap

    by hvacker
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    Looks like you know how to have a good time.

    Looks like you know how to have a good time.
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    He did more good than the psychiatrists.

    He did more good than the psychiatrists.
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    These guys seem to want you to suffer. I have a...

    These guys seem to want you to suffer. I have a different idea. Is this field your passion? I mean to the point you can't put it down. Maybe your passion is in another field/area. Mine was the arts....
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    Why isn't the HG bypass keeping the suction...

    Why isn't the HG bypass keeping the suction pressure higher? The HG bypass should return your oil.
    Be careful about too much oil. It could interfere with the crankshaft.
  29. There is a free program called eQUEST that might...

    There is a free program called eQUEST that might help. I think it's put out by the DOE. Google
    It does part loads.
  30. On some "why" jobs where fault might be in ??...

    On some "why" jobs where fault might be in ?? sometimes a relay can be interfaced where the board pulls in the relay and the relay feeds the device. I've done it at times where the inrush current...
  31. X2 probably

    X2 probably
  32. What was the failure mode?

    What was the failure mode?
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    It might be a failure that didn't become a total...

    It might be a failure that didn't become a total roast. I don't know if you are given time to cut it open. That's the only way you might be able to determine failure mode. Electrical or mechanical....
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    Yes, thanks Ice. The book actually was a SMACNA...

    Yes, thanks Ice. The book actually was a SMACNA Test and Balance text book back when I got certified. (1985) It bothered me because it seemed to make no sense and there was no explanation other than...
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    I agree with capacity losses due to wear....

    I agree with capacity losses due to wear. Compressors seem to fail somewhat differently today than say 30 years ago. Maybe like car engines today go for a much longer time.
    I thought the old timer...
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    Ice, in post #11 you said : Remember though, for...

    Ice, in post #11 you said :
    Remember though, for subcooling to increase the system capacity, the heat removed must go outside the system. For example, subcooling from a suction liquid heat exchanger...
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    Ammoniadog, I agree with you but only if I can...

    Ammoniadog, I agree with you but only if I can open the failed comp and go from there. Clean ups are not as troublesome as the days of pumping R11 through the system. It kind of depends on the...
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    Hello Intermatic. I was wondering if the company...

    Hello Intermatic. I was wondering if the company is still in Spring Grove Ill. The reason is I worked for an Hvac contractor that did subcontracting for the company. I left the area in 87 but still...
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    The "Free"idea might have come from the free...

    The "Free"idea might have come from the free estimates so many shops offer. All time spent of free estimates needs to be included in your OH. But free diagnosis won't work because work was performed....
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    In New Mexico the GC's will require workers comp...

    In New Mexico the GC's will require workers comp on all subs. Their thinking is a sub could bring other labor to the job and if the other labor got hurt it would fall on the GC. They don't want that...
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    Thee is a company here that has it's employers...

    Thee is a company here that has it's employers get their licenses, insurance etc. Then presents the jobs available and the "Subs" bid against each other. He 1099's them. As far as I can tell it's no...
  42. Thread: Shots Fired

    by hvacker
    Replies
    2
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    370

    Shots Fired

    I was informed that in Albuquerque on duty police will at midnight of the forth, park their cars under bridges to protect themselves from gun shots fired in celebration.

    This is mainly in an area...
  43. Yes. It's often said that if the problem isn't...

    Yes. It's often said that if the problem isn't found the new compressor will fail. Failures are most often external.
    I once had a failure. When I pulled the end bell to see what the failure mode was...
  44. Thread: Stereo Systems

    by hvacker
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    619

    I still listen to vinyl and can get good buys at...

    I still listen to vinyl and can get good buys at 2nd hand stores. Some still in the wrapper. I used to run a TCC pre -amp but my wife bought us a new Audio-Techneca turn table and it had a built in...
  45. I once spent a day at a compressor...

    I once spent a day at a compressor remanufacturing facility in Phoenix and was very impressed with the thoroughness I saw. I would have no problem ordering compressors from them.
    I have seen...
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    I doubt your problem is the thread sealant. Pipe...

    I doubt your problem is the thread sealant. Pipe threads are tapered and require a lubricant. Almost anything will allow the thread to seal. I think your problem is with the thread. Be suspicious if...
  47. On an inspection even engineers will sometimes...

    On an inspection even engineers will sometimes disagree on failure mode.

    Even though you seem to be focusing on the compressor having failed I'd open the electric panels to be sure everything is...
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    Start with knowing where North is. Then there...

    Start with knowing where North is.
    Then there are contractors that don't follow all that close to the prints and change orders.
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    Everyone knows it's all Freezone.

    Everyone knows it's all Freezone.
  50. I have worn Keen Gypsum hikers for several years...

    I have worn Keen Gypsum hikers for several years for everyday. I just recently found out Keen makes work boots.
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