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  1. Replies
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    644

    Hi Jharrold1122, This just shows that you have...

    Hi Jharrold1122,
    This just shows that you have to work the bugs out of any unit.
    I'm sorry, I couldn't resist.

    Yes, the blockage was probably doing what you stated.

    Good Luck.
    Allen
  2. Replies
    5
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    451

    Hi Timtanguay, I use a piece of software titled...

    Hi Timtanguay,
    I use a piece of software titled Smartdraw. http://www.smartdraw.com/
    It is a simple program to use, and you can create your own symbols.

    Good Luck,
    Allen
  3. Replies
    5
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    377

    Hi Twinpop, With the UCP having 24 vac to it and...

    Hi Twinpop,
    With the UCP having 24 vac to it and the fuse is good, but the red LED is not lit.
    The UCP is bad, it must be replaced. That is from page 46, Section 9.1 of the Black Book.
    I agree...
  4. Replies
    41
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    2,033

    Hi Jbaur, I agree with Hands, Never use...

    Hi Jbaur,
    I agree with Hands, Never use Acidaway.
    I heard a chemist speak about it in reference to system clean up, her comment was "Acidaway is horrible."
    You should follow Hands directions, you...
  5. Replies
    6
    Views
    473

    Hi D1DR, I agree with Alcomech, that Shortridge...

    Hi D1DR,
    I agree with Alcomech, that Shortridge is the best.

    About calibration, considering the amount of money that you will be spending for these instruments, no matter what brand you choose,...
  6. Hi Nipper, If the solenoid fails, the VCM is...

    Hi Nipper,
    If the solenoid fails, the VCM is going to still go through the calibration process. Since it cannot vent the high port to the low port the pressure difference will not go to zero. When...
  7. Replies
    10
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    1,638

    Hi Waregl82, Thank you for the information on...

    Hi Waregl82,
    Thank you for the information on the app.
    Local 602 serves Washington, DC, Maryland and Northern Virginia.

    Good luck to you my friend.
    Allen
  8. Replies
    10
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    1,638

    Hi Waregl82, Where did you get your...

    Hi Waregl82,
    Where did you get your psychrometric app for your Iphone?
    Thank you,
    Allen
  9. Replies
    10
    Views
    1,638

    Hi Durable Machinery, Welcome. Your leaving...

    Hi Durable Machinery,
    Welcome.

    Your leaving wet bulb temperature is too low, does not make sense.
    I would expect the wet bulb temperature to be around the 55 degrees.
    When the air leaves the...
  10. Replies
    2
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    554

    Hi Allstar08, Is the armature (moving part of...

    Hi Allstar08,
    Is the armature (moving part of the starter) pulled completely in?
    If it is not pulled completely in, the coil of the starter will pull more current than it should.
    The coil of the...
  11. Replies
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    2,419

    Hi Nrmika, You must weigh the refrigerant charge...

    Hi Nrmika,
    You must weigh the refrigerant charge into the RTU.

    Keep warm thoughts.
    Good luck,
    Allen
  12. Thread: Arc guards

    by Allen
    Replies
    5
    Views
    970

    Hi Socotech, They are arc guards or also called...

    Hi Socotech,
    They are arc guards or also called arc chutes. Their purpose is to give a path to the arc that is created from the inductive "kick" when the contactor opens. They are there for safety...
  13. Great job!!! Allen

    Great job!!!
    Allen
  14. Hi RG1966, The VCM goes through calibration once...

    Hi RG1966,
    The VCM goes through calibration once every minute. The calibration sequence is initiated by the firmware in the VCM.
    The actual process is: 1. calibration sequence is initiated
    ...
  15. Thread: TRANE scrolls

    by Allen
    Replies
    13
    Views
    1,701

    Hi Dave, Did you check the bellyband crankcase...

    Hi Dave,
    Did you check the bellyband crankcase heaters?

    The "cornerstone" scrolls must have crankcase heaters.
    If the compressors are getting noisy, it could be refrigerant washing the oil off...
  16. Hi CommtechinVA, There is nothing wrong with the...

    Hi CommtechinVA,
    There is nothing wrong with the UCM.

    If the VAVs are connected to Summit, Summit is stopping your override, and returning it to normal operation. Or what it perceives as normal....
  17. Replies
    7
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    1,357

    Hi echocrewchief, Do you know what the tonnage...

    Hi echocrewchief,
    Do you know what the tonnage of the unit or model number?
    The model number would be best.
    I have pulled the GE book out of the attic.

    Let me know.

    Allen
  18. Replies
    7
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    1,357

    Hi echocrewchief, I will scan it for your...

    Hi echocrewchief,
    I will scan it for your tomorrow.
    I thought I had it here on this computer
    but it is a BTC, cooling only not a heat pump.

    By the way, Trane bought GE's air conditioning...
  19. Replies
    6
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    1,192

    Hi ramesh031, The piping material will be...

    Hi ramesh031,
    The piping material will be determined by the size of the piping being run.
    Typically, what I have seen is, 2.5 inches (63.5 mm) or less is copper.
    3 inch (76.2 mm) or larger is...
  20. Replies
    6
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    1,192

    Hi ramesh031, The advantage of a direct return...

    Hi ramesh031,
    The advantage of a direct return system is lower cost of materials and labor.
    The terminal unit piping is returned to the system return directly, so those returns are of different...
  21. Thread: Trane Intelipak

    by Allen
    Replies
    3
    Views
    720

    Hi ascj, The contacts that you are referring to...

    Hi ascj,
    The contacts that you are referring to change state when going from unoccupied to occupied, as you read.

    Trane considers heating in a VAV RTU to be an unoccupied operation.
    When your 90...
  22. Replies
    12
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    2,065

    Thank you. Allen

    Thank you.
    Allen
  23. Replies
    3
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    1,519

    Hi Helgy, You have a model M compressor in the...

    Hi Helgy,
    You have a model M compressor in the condensing unit. and there is a two step process to determine what in the Guard Pak (GP) shut the compressor down.
    The two things are oil pressure as...
  24. Replies
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    2,065

    Hi Vic Expert, I teach in our Local's...

    Hi Vic Expert,
    I teach in our Local's apprenticeship school.
    Is there any training literature or videos available for the Vic fittings and systems?

    Thank you,
    Allen
  25. Replies
    6
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    1,643

    Hi BDervishian, I had learned the different...

    Hi BDervishian,
    I had learned the different formulas through the years doing my job. Knowing those formulas helped me to do my job as a serviceman.

    There is a good book available from the...
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