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  1. Replies
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    This manufacturer is a custom fabricator...there...

    This manufacturer is a custom fabricator...there will be no standard manuals. I suggest calling the company with model # serial # and what issue you need to resolve.
  2. Thread: TurboCore

    by thermo
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    87
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    21,953

    You guys are a riot!! I suggest you all stop...

    You guys are a riot!! I suggest you all stop drinking the Kool-aid...you never know who you may be working for next year.......Btw the York dual really does look like bucket of iron tossed in the...
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    1,321

    RCI typhoon if you want a storm....Gob to United...

    RCI typhoon if you want a storm....Gob to United Cool-aire or Skil-Aire....... Typhoon stuff is complete junk
  4. Replies
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    3,286

    I might be mistaken but the Danfoss/Maneurope...

    I might be mistaken but the Danfoss/Maneurope compressor is the original Trane Cornerstone one compressor.......used to be the orange compressor.....Danfoss paints it blue.

    The Trane Cornerstone...
  5. Thread: AAON Problems

    by thermo
    Replies
    13
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    6,269

    Unfortunatly AAON and problems are a redundant...

    Unfortunatly AAON and problems are a redundant statement. The units are notorious for wiring errors and voltage drop at the contactors. Upgrading the transformer is a first step and going to the cube...
  6. Replies
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    WSHP's should have a 12 degree rise in cooling...

    WSHP's should have a 12 degree rise in cooling across the condenser and a 6 degree drop in heating. This is at ARI flow rates....McQuay catalogues entering water temps up to 110 EWT. This application...
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    746

    Is this unit a upflow or downflow? Data-Aire had...

    Is this unit a upflow or downflow? Data-Aire had many problems with evaporator airflow at the time of this unit.

    The slab coil arrangement they used back then was horrid on airside pressure drop. ...
  8. Thread: McQuay 7.5 Ton

    by thermo
    Replies
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    754

    A simple test for proper flow is you should have...

    A simple test for proper flow is you should have a 12 degree rise in water temp in cooling and a 6 degree drop in heating.
  9. Replies
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    1,002

    Dectron is ok, but somewhat over priced and...

    Dectron is ok, but somewhat over priced and difficult to service. 15 tons and under I would go with Desert-Aire..they have been around since late 80's very releiable stuff.Milwaukee Wi. company...
  10. Replies
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    4,200

    Hey Outside Rep...good luck with Artichill and...

    Hey Outside Rep...good luck with Artichill and the Turbocores. They had to turn back a large order in Indianapolis about 4 months ago. Also I understand that Artichill is in patent litigation for...
  11. Replies
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    Ya can't stop a Trane but ya can hear one a mile...

    Ya can't stop a Trane but ya can hear one a mile away..

    You guys need to wake up and understand that Trane is not Trane anymore...it's American Standard..
  12. Replies
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    1,501

    McQuay has an optional Erie motorized valve...

    McQuay has an optional Erie motorized valve option for heat pumps with Mark IV controls. The applications used are for either positive water shutoff when the unit is in the unoccupied mode (tenant...
  13. Replies
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    2,002

    BSC = Baltimore Spot Cooler....went sunnyside up...

    BSC = Baltimore Spot Cooler....went sunnyside up 10 to 15 years ago.
  14. Replies
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    1,615

    Then I would go with 3- 20 ton modules which...

    Then I would go with 3- 20 ton modules which would have the -20 ambient flooded recievers . This would give you 6 steps of capacity control and the ability to unload to 10 tons.Use the existing fluid...
  15. Replies
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    1,615

    The fan speed option may allow the chiller to run...

    The fan speed option may allow the chiller to run at 0 degrees but can be a problem starting at 0 degrees. Especially with a low load....You may add a small fluid cooler into the system for...
  16. Replies
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    805

    1 1/2 ton 208 volt

    1 1/2 ton 208 volt
  17. Replies
    1,275
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    125,540

    Dear Serverroom, Approx. 32 pages ago (give or...

    Dear Serverroom,

    Approx. 32 pages ago (give or take a hundred) I warned you about dealing with APC for coolng solutions. I doubt you will ever get a unit since word has it that they are getting...
  18. Replies
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    2,164

    The original question was which chiller was most...

    The original question was which chiller was most efficient.

    The best efficiency I have ever seen is a McQuay dual compressor centrifugal with a full load kw/ton around a .54 with a IPLV about .31...
  19. Replies
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    1,721

    We always recommend 70 degree loop temp in winter...

    We always recommend 70 degree loop temp in winter (avoids nuicance trips on low temp) and stage 1st stage heat of rejection at 88 degrees with a 2 degree deadband....
  20. Replies
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    2,659

    The unit you guys are talking about is called a...

    The unit you guys are talking about is called a water cooled verticle self contained unit the uses condenser water to remove the heat of rejection. Most applications are VAV which means the unit has...
  21. Replies
    1,275
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    125,540

    Hokey smokes Bullwinkle, how about we subtract...

    Hokey smokes Bullwinkle, how about we subtract the diameter of the sphinkter valve by the circumphrense of a dogs nose...will that work!!! put a fork in it!!
    \
  22. If you cannot find any data on the existing...

    If you cannot find any data on the existing models I would suggest measuring the height and length of the coil and overall cabinet and compare that to new models. There has been no new technology on...
  23. Replies
    1,275
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    125,540

    I understand your frustration serveroom...my...

    I understand your frustration serveroom...my summary did not intend to cover all points of view.just commentary..but you have a point....lot's of HVAC guys including engineers do not understand the...
  24. Replies
    1,275
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    125,540

    Having been involved in the design and sale of...

    Having been involved in the design and sale of A/C units for data centers and small computer/server rooms for over 25 years this thread is amusing as it is typical.
    1. Not the proper budget to do...
  25. Thread: McQuay anyone?

    by thermo
    Replies
    15
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    2,749

    nope ...

    nope ...
  26. Thread: McQuay anyone?

    by thermo
    Replies
    15
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    2,749

    787 guy is correct.....only centrifugals and...

    787 guy is correct.....only centrifugals and screws have a manditory first year parts and labor warranty as standard.It is also manditory for the factory to provide start-up. I would never take on a...
  27. Replies
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    1,414

    I have seen this on 277 volt motors running on...

    I have seen this on 277 volt motors running on high speed ....otherwise I haven't heard of the problem.
  28. Replies
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    721

    Microtech 1 controllers are Energy Line...

    Microtech 1 controllers are Energy Line controllers that were discontinued for the newer Microtech 2 controllers.
    Like all manufacturers replacement boards are re-built and they charge a core charge...
  29. Thread: Mcquay screw

    by thermo
    Replies
    66
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    7,840

    Hey Chilly, I agree where you are going with...

    Hey Chilly, I agree where you are going with this....mass volume and start/to load issues are usually at the root cause of ALSa,b vintage machines. We deal with several ALS issues that are more...
  30. Replies
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    1,386

    You are not going to get anywhere giving them the...

    You are not going to get anywhere giving them the model and serial # of the Airflow unit. You need to:
    determine that it is a Nortec canister (look at the circuit board that controls the humidifier)...
  31. Replies
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    Airflow Co. was purchased by APC. they mostly...

    Airflow Co. was purchased by APC. they mostly used Nortec canisters and can be purchased from the Nortec rep....they also used Carel humidifiers also but the controller of the humidifier should have...
  32. Thread: Heat pump loop

    by thermo
    Replies
    4
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    668

    The optimal water loop temp in heating mode is 70...

    The optimal water loop temp in heating mode is 70 degrees and in cooling mode the usual first stage of heat rejection from the tower is 85 to 88 degrees. Water flow rates should be min 1.8 gpm/ton to...
  33. Replies
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    You got to love the Trane company.....they don't...

    You got to love the Trane company.....they don't tell anybody what R-123 will cost in the future...as for stock piles of R-123...it is the least used refrigerant out there.. DuPont can't wait to...
  34. Replies
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    best price and availability is United Cool-air ...

    best price and availability is United Cool-air
    1-877-905-1111
  35. Thread: Desiccant Wheel

    by thermo
    Replies
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    4,878

    You have a company in Owattona, Mn. that makes...

    You have a company in Owattona, Mn. that makes dissicant units.. website is CDI-HVAC.com I have used several on ice rink projects and find them very reliable..
  36. Replies
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    They are 7.5 ton condensing units, they were the...

    They are 7.5 ton condensing units, they were the old Singer/Snyder General design that was sold to ICP
  37. Replies
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    2,557

    just found out that from "Smitty"

    just found out that from "Smitty"
  38. Replies
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    The McQuay ALS "c" vintage units have been bullet...

    The McQuay ALS "c" vintage units have been bullet proof the new AGS has been pretty good also...the ALS "a" and "b" vintage were bad news .....Cek kits help but not a fix all .
  39. Replies
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    2,557

    They stopped Snyder General after the purchase of...

    They stopped Snyder General after the purchase of McQuay when they tried to buy York......
  40. Replies
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    2,557

    Trane is not in a financial position to buy...

    Trane is not in a financial position to buy anybody right now....also the technology has not been developed for all of the air cooled platforms necesary to make this product or company attractive for...
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