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Type: Posts; User: atmosphere

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  1. Replies
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    Check your condenser fans Tstat settings and...

    Check your condenser fans Tstat settings and calibration.
  2. Replies
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    546

    Most of the existing OEM's online give rigging...

    Most of the existing OEM's online give rigging instructions to avoid new non LEED skylights.
  3. Thank you.

    Thank you.
  4. Trane fan coil Old Unitrane model number description

    I am trying to get an old model number description (about 1983) in order to provide proper data to Trane for replacement units. What I am looking for are what the old system digits meant like 3 or 4...
  5. Replies
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    878

    And are your pumps on the roof or down below. Are...

    And are your pumps on the roof or down below. Are they on vfd's or constant volume. Are there three way valves or two way.
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    882

    You will need to get the head off whether you...

    You will need to get the head off whether you repair or replace...
    mixed brass pays less.
    And that makes for more salad, "bunny".
  7. Replies
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    828

    It is Tracer ZN510 or 524 with a baysens 006B...

    It is Tracer ZN510 or 524 with a baysens 006B ZSM.
    My question is, can I get a list of the current diagnostics thru an LED blinks code or do I have to sic "Rover" on it. The literature on the...
  8. Replies
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    828

    Trane expert WSHP GEHB048

    Does anyone know the model number of the ZSM with a set point only? Also the main board has only one LED w/ no test pins. Seeing no fan op, steady Green LED.
    There are no occupancy switches on the...
  9. Replies
    28
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    3,315

    Some of the AAON machines size their VA's very...

    Some of the AAON machines size their VA's very closely. Look for damper actuators,added relays (like for fire alarms) etc. Not much additional capacity is available with the OEM transformer.
  10. Where your boilers are located in reference to...

    Where your boilers are located in reference to your pump package will make a difference.
    Think about column weight in your risers.

    Ground control to Major Atwood...
  11. Thanks for the instruction.

    Thanks for the instruction.
  12. You could get a second opinion. Contractor 1...

    You could get a second opinion.
    Contractor 1 provided a well written explanation of his diagnosis and remedy.
    Contractor 2 might not be as sharp.
    The question you will have to answer is if you are...
  13. Replies
    27
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    5,415

    Thanks for this diagnostic tool. Brings me back...

    Thanks for this diagnostic tool. Brings me back to building my first vacuum pump from an old GM Fridgidaire refrigerator compressor (they ran in a vacuum normally). And the old Simpson 260, then when...
  14. How is the oil doing?

    How is the oil doing?
  15. Replies
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    1,343

    I have serviced alot of churches over the years...

    I have serviced alot of churches over the years and also have commonly found airflow issues. Certain wings and rooms get closed off so that only the office area(s) which are occupied daily are left...
  16. Replies
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    1,966

    Hi rheff, have you run this unit in "test" mode...

    Hi rheff, have you run this unit in "test" mode yet?
  17. Where your boiler is located in reference to your...

    Where your boiler is located in reference to your pumps is important to know. Also if you have a multi storey bldg. where are the pumps.
  18. Are your boilers on the same level as your pumps,...

    Are your boilers on the same level as your pumps, are are they lower? Your loop psi may be too high.
  19. Are the boilers tempering this loop directly, or...

    Are the boilers tempering this loop directly, or do they do it thru a heat exchanger?
  20. Replies
    7
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    1,343

    All diffusers open?

    All diffusers open?
  21. The expansion tank is okay..... meaning??

    The expansion tank is okay..... meaning??
  22. Data Center Knurr Cooltherm w/o CoolCon

    Anyone with experience on these racks could you email me?
    Thanks.
  23. Replies
    13
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    1,613

    If you have a VP motor sheave you could close it...

    If you have a VP motor sheave you could close it some and see what you get.
  24. Replies
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    2,332

    I guess you'd better. the guy in the picture is...

    I guess you'd better. the guy in the picture is already looking for a pipe chase.
  25. Replies
    13
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    1,613

    ARI (AHRI) is an HVACR product testing and...

    ARI (AHRI) is an HVACR product testing and performance verification entity. They test equipment according to their standards and publish them.

    For instance, they tested Dave "Attaboy" Lennox's...
  26. Replies
    3
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    1,090

    No Display = RS485 port on the drive. Windows 95...

    No Display = RS485 port on the drive. Windows 95 and later.
  27. Replies
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    2,716

    I know that this is obvious..... Air??

    I know that this is obvious..... Air??
  28. Replies
    6
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    1,327

    Are you using ball bearing motors on the p-66...

    Are you using ball bearing motors on the p-66 fans?
  29. Replies
    13
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    1,613

    If you would like to "economize" your time on the...

    If you would like to "economize" your time on the job I would start in those offices. Customers on the sales floor don't usually complain about the HVAC system but the day to day office people would....
  30. Thanks, Control man, I'll take that for future...

    Thanks, Control man, I'll take that for future use.
  31. Replies
    38
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    3,645

    Some baskets have handles for very convenient...

    Some baskets have handles for very convenient reasons.
  32. Replies
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    1,613

    I don't think looking for common small issues is...

    I don't think looking for common small issues is really being lazy, Mr. McCann. If this is a basic PM Contract you were probably trying to save the customer some T&M billing. Also, I think you are...
  33. Replies
    38
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    3,645

    That is correct on that unit. My experience has...

    That is correct on that unit. My experience has been that the best way to adjust superheat on these machines is with both circuits loaded.

    Does this have a P-66 or Lee-Temp? Your subcooling, if...
  34. Replies
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    5,138

    Some of my Union acquaintances never figured...

    Some of my Union acquaintances never figured there is also an Employer's union.

    They will GET YOU FIRED AND THEN HIRE YOU AT A LOWER RATE BECAUSE THEY THINK YOU WILL BE DESPERATE.

    Solution:...
  35. Replies
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    5,415

    Single phasing. Nothing unstuck. You have lost...

    Single phasing. Nothing unstuck.

    You have lost credibility.

    You appear to be a humble man and should bounce right back and smarter too.
  36. Replies
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    3,333

    IT IS A COMMON THING on these machines to have...

    IT IS A COMMON THING on these machines to have dust on the contactor plunger. You will have 24+ volts at the coil and just a light touch on the plunger while it is calling will allow it to pull all...
  37. Replies
    13
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    1,613

    Try recording your suction psi with all unit...

    Try recording your suction psi with all unit panels in place, then partially open a supply panel (downstream of the evap. coil) and watch your suction psi . If it goes up, you may have to open your...
  38. Replies
    38
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    3,645

    The Carousel at Euclid Beach

    Exactly. The airflow on these machines is erratic when one circuit is out to lunch.

    You will have alot of hunting going on as the coil begins to sweat, the valve reacts, the sweat diminishes, the...
  39. Replies
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    8,948

    Fieldpiece looks alot like the old Beckman meters...

    Fieldpiece looks alot like the old Beckman meters that were the HVAC industry standard in the '80's after the Simpson 260. The engineer left Beckman and went to Fieldpiece.Fieldpiece has always been...
  40. Replies
    3
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    801

    Thanks for the info- I agree they look like the...

    Thanks for the info- I agree they look like the product for our techs.

    In fact we are quite sold on them and just need some direction on making it happen.
  41. Replies
    3
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    801

    paperless paperwork

    We are going to switch from paper to notepads for all of our field techs for documenting job records, invoicing, etc., and especially one that receives signatures.

    I would appreciate input from...
  42. Replies
    5
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    1,201

    Does this machine pull the condenser in thru...

    Does this machine pull the condenser in thru auxiliary switches on the compressor contactors?

    I would add that to the lineup of usual suspects... loose connections, bad /fouled points, switch...
  43. Replies
    16
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    1,293

    A good tech should ask that question every time...

    A good tech should ask that question every time he enters a walk in.

    Maybe that was NATE's design... to make sure every walk in ... is also a walk OUT.
  44. Replies
    1
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    460

    Vfd programming

    It seems you are asking if on a present two speed motor (can I guess an Evapco tower?) whether the low speed operation delivers 50% capacity all the way around.

    For instance, at low spd. does it...
  45. Replies
    1
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    737

    Yes. When the combustion air is contaminated...

    Yes.
    When the combustion air is contaminated with chemicals, such as swimming pool heaters getting air from the same room the pool chemicals are stored.
    But usually the burner tubes go first.
    If...
  46. Replies
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    4,197

    We are selling the house... can you just get it...

    We are selling the house... can you just get it to work through the summer?

    Home gets listed.
    Central AC!!!!
  47. Replies
    16
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    1,229

    So when does the wolf strike?

    So when does the wolf strike?
  48. Replies
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    1,049

    Well some of us don't see alot of this type of...

    Well some of us don't see alot of this type of equipment everyday.
    Good to hear a story like that, but it kind of read like it was from the land of OZ.
  49. Thread: LLSV

    by atmosphere
    Replies
    17
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    1,855

    Sounds good to me too. If the old compressor was...

    Sounds good to me too.
    If the old compressor was acidic I can see the LLSV valve body being copper plated. If new guts were installed into the old valve body, I can see how the new parts would bind...
  50. When you switch it on and the transformer out...

    When you switch it on and the transformer out front launches from the power pole is a pretty good indicator as well.
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