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Type: Posts; User: Jbart

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  1. Replies
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    I would tend to disagree on water cooled...

    I would tend to disagree on water cooled chillers, at least the newer ones. A 1250 ton Trane centrifugal chiller ( maybe others too) can easily produce well over 1250 tons if piping, CW temp and...
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    I'm going back to retrofit another unit at this...

    I'm going back to retrofit another unit at this facility later this week. I will take more temps and pressures in existing. So far they say that the performance is very good. Ill update after
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    Not yet, but I will call them if I don't find a...

    Not yet, but I will call them if I don't find a good resolution.
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    They do recommend it.

    They do recommend it.
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    I agree, but at the same time I wanted to try...

    I agree, but at the same time I wanted to try some and they were begging me to find something less expensive. I always label my systems when converted.
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    Thank you for a post with actual first hand...

    Thank you for a post with actual first hand experience. I just wanted to hear from someone that has used it and seen it work.
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    I won't, I can't expect you to understand all...

    I won't, I can't expect you to understand all that's going on here.
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    Agreed, but this facility will be used for only...

    Agreed, but this facility will be used for only about 2-5 more years before being torn down.
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    Again, I am just looking for experience with...

    Again, I am just looking for experience with NU22B. Not opinions.
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    Thanks for that genius of an idea, I never...

    Thanks for that genius of an idea, I never thought would have thought that a system designed for R22 should have R22 put in it! What was I thinking! Does that mean I should pull out the 1300 lbs of...
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    But the R22 circuit has no problem with high...

    But the R22 circuit has no problem with high superheat, only the NU22B
  12. Replies
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    Thanks for your comments but I'm looking for...

    Thanks for your comments but I'm looking for answers. 20% reduced capacity has nothing to do with my high superheat. Has anyone used this stuff?
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    It seems like the evaperator coil is starved. ???

    It seems like the evaperator coil is starved. ???
  14. Replies
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    I am using the NU22b chart

    I am using the NU22b chart
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    High superheat with NU22B

    I changed out one 6 ton circuit on a 2 circuit 12 ton RTU and converted a 5 ton split system both to NU22B. The building owner wants something less expensive than R22 to use when we find units with...
  16. Good job! Good to know

    Good job! Good to know
  17. I didn't have time Friday, worked 15 hours. Our...

    I didn't have time Friday, worked 15 hours. Our system does not have Internet access so its hard to email reports.
  18. That's a lot of scanning. We are changing them...

    That's a lot of scanning. We are changing them out one by one as they show their ugly faces. I have no idea if there would be a fix in there or not. I appreciate the offer but hate for you to do that...
  19. Yes to system profile and sure, you want it...

    Yes to system profile and sure, you want it emailed?
  20. If you are controlling through comm it sure can....

    If you are controlling through comm it sure can. Otherwise no.
  21. Yes I have tried that

    Yes I have tried that
  22. Old Landis and Gyr TEC air flow problems application 33

    We have hundreds if not thousands of TEC's in our facility. I have been running into a problem more so on the older L&G TEC with application 33. The newer Siemens TEC 2033 don't seem to have this...
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    What is a drsa? I'm not sure. I can't see...

    What is a drsa? I'm not sure. I can't see Ritchie engineering putting their name in it without them making it.
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    I have a Testo and Yellow Jacket system...

    I have a Testo and Yellow Jacket system analyzers, have you compared this to either of these? I paid about $800 for YJ and $650 for Testo. I like the dize of Testo but the Yellow Jacket has more...
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    I used to carry one of three different ones, now...

    I used to carry one of three different ones, now no fire arms are allowed in the place I work so it has to stay in the truck. I was more inclined to have it on my for some of these sick dogs people...
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