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Type: Posts; User: PJ's cool-aid

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    old miss-match Bahnson

    I am working on some old Bahnson units (1973) and have noticed the compressors are 60 ton 3E5R60 compressors turned by a 100 hp motor with a 100 ton condenser that is using 3 -30 ton valves per...
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    I found 4 SEO 70 in trane stock in Texas and...

    I found 4 SEO 70 in trane stock in Texas and bought all 4. I was told last year that there were none. but someone who took the time to look found some on the shelf. But I think they were all that...
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    Sensors checked out ok and the configuration was...

    Sensors checked out ok and the configuration was set for RTWA. Only thing I found was low refrigerent with a leak at the top of my EXV drive motor. One of the other service guys was charging it at...
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    That is the fault on the CLD is low differential...

    That is the fault on the CLD is low differential press..ckt #1
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    The fault is low differential press. which the...

    The fault is low differential press. which the book says has to do with fan algorithm
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    RTWA question

    Can you get a low differential pressure fault on a RTWA?? I thought that was only on the air cooled RTAA, but I got the fault now on my water cooled machine?? I don't thinK some one has been changing...
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    Does it have a external oil filter? I had the...

    Does it have a external oil filter? I had the same issue, found out that the fitting on the oil filter is a retrictor that looks like a regular brass 90. I did not know that and I put new brass 90s...
  8. Jay remind me again not to open your links at...

    Jay remind me again not to open your links at work with others around. There goes my ethics policy for the year.
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    SEO-70 EXV

    From what I can find out there are no more SEO-70 to be had, Correct??
    What is the replacement plan and does anyone have a cutsheet on the retrofit? How tough a change over is it to the new valve?
    ...
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    rewards program

    I have been asked to develop an incentive program for a job site and I need input for the criteria to use. Does anyone do such a program and money is not the reward. it my be time off or tools who...
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    Thanks for the chart and the help.

    Thanks for the chart and the help.
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    Trane CSHA

    Is there a preferred soilder for brazing steel to copper on Trane's scroll compressor or any steel to copper.Never seems to look near as good as the factory job. Thanks PJ
  13. Thread: RTAA

    by PJ's cool-aid
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    RTAA

    the default for the condenser limit is 90% ( adjustable 80% to 120%) so I thought that was tranes prefered setting, so I will now bump it up and see how that works. Thanks
  14. Thread: RTAA

    by PJ's cool-aid
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    RTAA

    I have a RTAA080 that is running one circuit at current limit of 90% and circuit 2 at 45% but it is still 5 degrees from set point. Will the control not let it load both to the 90% current limit to...
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    5H60 ON 407

    NO LEAKS TILL it BLEW UP AND BLEW THE SHAFT SEAL. Also blew a bolt out of the hand hole cover,cracked a valve plate and blew the unloader diaphram. lost 240 lbs in about 8 minutes. the other...
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    5H60 ON 407C

    I have got two carrier open-drive 5h-60 that were changed from Mineral oil to POE and 407c installed. I have lost both of these compressor in the three months they have been running. Anybody changed...
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    Trane CRHM

    Thanks a lot, that clears up what I wanted to know. Do you have to have some special insider info. to get into these service bulletins.

    Thanks PJ
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    Trane CRHM200

    Can you tell by looking at the head weather it unloads one cylinder or the whole head(2). Paper work I can find said the model number tells how many cyls. are unloaded but what if heads get changed....
  19. Thread: RTAA

    by PJ's cool-aid
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    RTAA

    Does anyone have a link to the service bulletin for this change.

    Thanks
  20. Thread: RTAA

    by PJ's cool-aid
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    RTAA

    Thanks but not the answer I wanted but the one I got. Thanks for the input, any idea how tough a retrofit it is??
  21. Thread: RTAA

    by PJ's cool-aid
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    839

    RTAA

    I was told today that the SEO 70 EXV was no longer available. this Trane RTAA chiller is a 99 model, I was told the replacement needed a new module and that I had to convert both circuits to the new...
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    RTAA phase reversal

    I have a RTAA-80 I am getting a phase reversal fault every couple of weeks. I check it reset it and every thing is find. no loose connection that I can find. ANY SUGGESTIONS. It happens at night and...
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    Trane CRHM-20

    on a Trane CRHM 20 does the unloader unload one cylinder or the whole head? Am I correct that carrier O6D and E and Copelands unload the whole head?

    Thanks
  24. Thread: RTAA-80

    by PJ's cool-aid
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    RTAA 80

    I DON'T TRY TO FIGURE THESE PEOPLE OUT we just lost a ten thousand dollar compressor and I guess the question came up. thank you for the input
    PJ
  25. Thread: RTAA-80

    by PJ's cool-aid
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    RTAA-80

    Does anyone know if Trane is recommending changing these chiller(RTAA-80) to a different refrigerant. I have a customer who wants to get away from R-22 can they be converted to 407 or anything else?...
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