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  1. Replies
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    Sysem Pumping Down

    I have a Trane Heat Pump Md# 2TWB3036A1000AA that keeps pumping down and shutting off on LP control!!! Nameplate says it takes 7lbs. 6 ozs. R22. I start out with around 170 head and 80 suction then...
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    Sysem Pumping Down

    I have a Trane Heat Pump Md# 2TWB3036A1000AA that keeps pumping down and shutting off on LP control!!! Nameplate says it takes 7lbs. 6 ozs. R22. I start out with around 170 head and 80 suction then...
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    450

    !

    !
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    Wiring in ranco digintal t/stat

    Need help on wiring this in. Do I use the jumper or not? H3 goes to 2 on the grasslin timer on the condensing unit on the roof. I am at a daaa! Normally I just come off of 4 to the stat off the other...
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    Refrigeration Line Sizing

    I need help with sizing these refrigeration line sizes! Heatcraft engineering said they would not help with sizing these lines because they were burnt before. Here are the details:

    30' from...
  6. Thread: tecumseh

    by NANOTECH
    Replies
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    554

    Awsome !! Thanks!!!!!!

    Wow works great!! Thank you very much!!!
  7. Thread: tecumseh

    by NANOTECH
    Replies
    8
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    554

    Oh Ok, so all I have to do is download their...

    Oh Ok, so all I have to do is download their phone App. ? Do you have the info where I can go to download it?
  8. Thread: tecumseh

    by NANOTECH
    Replies
    8
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    554

    Hey pecmsg, I went too the website and typed in...

    Hey pecmsg, I went too the website and typed in model # and nothing came back! What am I doing wrong? I selected compressors and model number and do not have the BM #
  9. Thread: tecumseh

    by NANOTECH
    Replies
    8
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    554

    Thank You!!!

    Thanks, I did not see it in there!! Really appriciate your help!!:cheers:
  10. Thread: tecumseh

    by NANOTECH
    Replies
    8
    Views
    554

    tecumseh

    Need help finding new compressor for Tecumseh! Could only locate two numbers on the cond. unit. First one I think is the cond. unit # ( 2A2166-1 ) and the second one is either the BM or Model # of...
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    Copeland compressor performance curves

    Gess my old set of copeland manuals are not much good now days. Anyone know where to go online for the old style curves that shows as your SST goes up how many btu's the pump is good for?
  12. Thread: york

    by NANOTECH
    Replies
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    508

    york

    Relize this is an A/C issue but hoping some of you old refrigeration dogs may have some insight!


    I have a 7.5 ton York packaged RTU with electric heat. The problem I'm having is it keeps locking...
  13. Thread: superheat

    by NANOTECH
    Replies
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    562

    superheat

    Is it correct if you lower the superheat at the compressor you lower capacity and the overall refrigeration effect ?

    Thanks,
  14. Replies
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    R22 Margaux Rack

    What should the desuperheater ci and co be set at? R22 Low temp.
  15. Thread: Danfoss AK255

    by NANOTECH
    Replies
    3
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    818

    So if I have a 5 1.1 it would be com 5 bd 1 pt 1 ?

    So if I have a 5 1.1 it would be com 5 bd 1 pt 1 ?
  16. Thread: Danfoss AK255

    by NANOTECH
    Replies
    3
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    818

    Danfoss AK255

    When setting up Board assignments what is the .1 or .2 ? Example: Board 8 Point 5 ( what is the third number bd 8 pt 5,4) ?

    Thanks,
  17. Thread: AB Oil

    by NANOTECH
    Replies
    10
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    1,685

    Does copeland have a recommended oil to use when...

    Does copeland have a recommended oil to use when converting to R422 from R22 LT Rack!! ? Seems the best I have heard from the field when doning an oil change prior to the conversion it is best to do...
  18. Thread: AB Oil

    by NANOTECH
    Replies
    10
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    1,685

    AB Oil

    The company I'm working for is wanting us to come back in with AB Oil to replace the minerial oil on LT R22 Racks. Would it not be better to use POE ? Pros and Cons choosing one over the other would...
  19. Thread: POE Oil

    by NANOTECH
    Replies
    16
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    2,496

    Thanks Phase I was not sure if you could use POE...

    Thanks Phase I was not sure if you could use POE Oil with R22 !!
  20. Thread: POE Oil

    by NANOTECH
    Replies
    16
    Views
    2,496

    POE Oil

    On a small system using R22 when installing new compressor that comes with POE Oil do you have to drain it out and put Minerial oil back in ?

    Thanks
  21. Thread: Rack

    by NANOTECH
    Replies
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    1,173

    Brick has been nice to me thus far due to the...

    Brick has been nice to me thus far due to the fact he is still under contract till the end of the year. He custom designed these stores about 25yrs. ago using all the NC25's and a computer in every...
  22. Thread: Rack

    by NANOTECH
    Replies
    11
    Views
    1,173

    OK thanks Phase !! Got about 20 stores we picked...

    OK thanks Phase !! Got about 20 stores we picked up that still have these in them. We are changing them out along with the 55 upgrated to the 255's. They are pretty staight forward but having a hard...
  23. Thread: Rack

    by NANOTECH
    Replies
    11
    Views
    1,173

    If I remember you are familiar with the old...

    If I remember you are familiar with the old NC25's ?
  24. Thread: Rack

    by NANOTECH
    Replies
    11
    Views
    1,173

    Hey phase how you doing? Got a few questions for...

    Hey phase how you doing? Got a few questions for you if You have the time!
  25. Thread: Rack

    by NANOTECH
    Replies
    11
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    1,173

    JP did you get my message?

    JP did you get my message?
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