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  1. Replies
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    510

    Trane TU software ?

    Hey guys I need to know if there is a free download for tracer TU software I need to connect to a new unit and set address and baud rates and configure the unit for the bacnet controls any help would...
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    1,720

    MO99 is worth a try I just put it in an older...

    MO99 is worth a try I just put it in an older 12.5ton carrier split system and the head runs lower ,suction runs lower, but 20 degree drop across the evaporator. The cost is a lot better than a drum...
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    896

    Turn power off and lock it out

    Here is the easy way, pull the fuses from the starter should be 2- 12amp ,1- 2amp on the transformer and 1 small in size 30 amp turn off line voltage of course [460] or [208] open the control panel...
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    22
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    1,745

    bearing bracket retrofit

    I can tell you if you do not get the new retrofit parts you can plan on a wrecked machine! One of our techs replaced the outboard bearings with out pre load of 2800# and no crush ring and of course...
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    9,562

    I Believe I Answered Your ? Under Another Post!

    :D GO THE THE POST ABOUT THE RTAA WITH TANDEM CIRCUITS OIL PROBLEM AND YOU WILL SEE YOUR ANSWER!!!!
  6. Replies
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    1,863

    Check Your Net Oil Pressure Across The Filter!

    :D THE COILS R DIRTY OR FANS ARE OUT... but if you add an access tee in at the 1/4 inch line on the low side of the oil dp switch where it comes off the h line then using a highside gauge check the...
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    1,863

    This Is Not A Tandem Circuit!!!!!!

    :eek: the compressors are single circuit,with independent oil seperators and the oil temp sensors are located in the front of each compressor.The oil temp is checked after 30 minutes of the...
  8. Thread: compressor

    by cold-n-mode
    Replies
    11
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    928

    Screw Compressors

    What sir would you like to know about screw compressors? A model and serial number would also help trane,york,carrier or what brand?
  9. Replies
    8
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    1,007

    ?

    What is the temperature of the entering chilled water? Just woundering if the other compressor is not coming on until the load pulls down.One compressor should come on and load up to 100% before the...
  10. Replies
    3
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    685

    ?

    What kind of problems are you having?
  11. oil pressure?

    I have seen this problem when the discharge oil pressure reads above 30#s when the chiller is in pre-lube,what is your machines high oil pressure reading before the compressor starts?It should read...
  12. Replies
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    919

    oil carrier over

    Sounds like the chiller has been losing oil and some excess has been added,i don't claim to be a york expert but i recently overhauled a trane cvhe that had a suction cover full of oil,found the oil...
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    2,076

    trim balance

    Do you work for Johnson Controls?
  14. Thread: York- YK

    by cold-n-mode
    Replies
    2
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    810

    I just picked up 3 1500 ton York YK machines...

    I just picked up 3 1500 ton York YK machines under full coverage contract,my salesman has no idea what we just got into,for that matter i am also new to the OptiView control panel,can someone tell me...
  15. Replies
    6
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    893

    york

    Hey, i'm here sorry we never did get an oil sample done and i have not seen the chiller in about a year,glad to know i'm not the only one to find such weird problems,So are you going to tear the...
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    16
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    2,000

    ?

    Do you have a solid state starter on that chiller? 4 wires on each pole of the starter?
  17. Replies
    8
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    1,916

    MPL

    Ohm out your current transformers in the starter and check them with the wires disconnected. What size machine are you working on?
  18. Replies
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    893

    carry over

    No i had to put in a new shaft seal and the chiller was 200#s short on gas, this was the first time i ever worked on this chiller.So if it had carried over it was before i had been there.The chiller...
  19. Replies
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    893

    eliminator

    I have found these same type of metal pieces in the liquid line on the purge tank blocking the oriface that feeds the cooling coil in the purge.Let me know if your purge works ok when you get the...
  20. rtha-sb-15

    The 215 ton chiller has a copper line that supplies oil to and from the piston on page 18 figure 11 you can see the line,the place i have seen this line crack is around the flare fitting close to the...
  21. give me the m/n, s/n and i may be able to help i...

    give me the m/n, s/n and i may be able to help i would suspect a cracked flare line that supplies oil to the slide piston.i have repaired all sizes from 150 to 450 not all of them have the copper...
  22. Renew

    Trane company knows these machines well and you sound like a bean counter not keeping them on board.The guys that logs the chiller probably can tell if any problems exist by just the readings he...
  23. Replies
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    2,445

    If you do not know how to put the refrigerant in...

    If you do not know how to put the refrigerant in you should not try it .I say this hoping you do not suck the machine full of air trying to add some charge to it.The charging valve is located below...
  24. Thread: YORK-YT

    by cold-n-mode
    Replies
    2
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    646

    I have seen the 1/4" liquid supply to the purge...

    I have seen the 1/4" liquid supply to the purge cooling coil stopped up on the last 2 machines i have worked on.This been a problem with anyone else,or am i the only one that thinks the valve is...
  25. Replies
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    1,181

    I missed the last thread but i see no reason for...

    I missed the last thread but i see no reason for the liquid level sight glass,were there some low evap temp. issues before,sound like someone sold the a bill of goods,JMHO
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