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Forum: AOP Commercial HVAC

FOR EQUIPMENT OWNERS ONLY Questions and discussions regarding Commercial Buildings

  1. Sticky Thread Sticky: >>READ THIS FIRST<< NO DIY? Why NOT??

    Started by Dad, 10-31-2011 07:41 PM
    • Replies: 0
    • Views: 4,372
    10-31-2011, 07:41 PM Go to last post
  2. Sticky Thread Sticky: A must read for all members...Who can reply to the AOP area

    Started by Dad, 10-31-2011 07:37 PM
    • Replies: 0
    • Views: 3,656
    10-31-2011, 07:37 PM Go to last post
  1. Command Aire WSHPs

    Started by corny, 06-16-2010 07:47 PM
    • Replies: 0
    • Views: 1,268
    06-16-2010, 07:47 PM Go to last post
  2. Sporlan HGB

    Started by ascj, 06-15-2010 04:26 PM
    • Replies: 4
    • Views: 714
    06-16-2010, 01:19 PM Go to last post
  3. Liebert 00 board question

    Started by freonguy, 05-25-2010 09:27 AM
    2 Pages
    1 2
    • Replies: 16
    • Views: 1,464
    06-16-2010, 10:08 AM Go to last post
  4. revisit trane low oil flow problem

    Started by rkane, 06-16-2010 08:48 AM
    • Replies: 0
    • Views: 521
    06-16-2010, 08:48 AM Go to last post
  5. RTAA 217 trane chiller oil problem

    Started by Jikhleb Anwar, 05-09-2007 11:22 AM
    2 Pages
    1 2
    • Replies: 24
    • Views: 9,956
    06-16-2010, 08:39 AM Go to last post
  6. Confused suction line freezing

    Started by shultz440, 06-11-2010 07:44 PM
    4 Pages
    1 2 3 4
    • Replies: 39
    • Views: 12,904
    06-15-2010, 08:14 PM Go to last post
  7. blower static press. ?

    Started by newbe0507, 06-15-2010 07:11 PM
    • Replies: 2
    • Views: 451
    06-15-2010, 07:36 PM Go to last post
  8. Hmm RHEEM RRGF200075CKA

    Started by silver, 06-15-2010 04:09 PM
    • Replies: 0
    • Views: 333
    06-15-2010, 04:09 PM Go to last post
  9. permafrost??

    Started by trane_stud, 11-05-2008 04:00 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 4,385
    06-15-2010, 03:28 PM Go to last post
  10. Frown CGAF chiller tripping on low pressure

    Started by randystoker, 06-10-2010 10:32 PM
    • Replies: 7
    • Views: 2,056
    06-15-2010, 12:26 PM Go to last post
  11. Pharma pressure differential

    Started by Davidinnj, 06-11-2010 02:37 PM
    • Replies: 9
    • Views: 2,694
    06-14-2010, 09:54 PM Go to last post
  12. Obsolete Burners Needed!

    Started by jimmyjas, 06-14-2010 10:21 AM
    • Replies: 1
    • Views: 499
    06-14-2010, 02:15 PM Go to last post
  13. RTAA manual reset alarm ?

    Started by coolerinfrederick, 06-13-2010 07:07 PM
    • Replies: 7
    • Views: 1,042
    06-14-2010, 12:50 AM Go to last post
  14. trane intellepak

    Started by free cooling, 06-11-2010 09:26 PM
    • Replies: 8
    • Views: 869
    06-14-2010, 12:15 AM Go to last post
  15. High Head Pressure? What have I gotten myself into!

    Started by ZeroTolerance, 05-17-2010 09:22 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 97
    • Views: 6,431
    06-13-2010, 10:33 PM Go to last post
  16. Carrier Constant Air Voulme A/C Problem

    Started by mcewans, 06-08-2010 06:46 PM
    • Replies: 4
    • Views: 810
    06-13-2010, 06:52 PM Go to last post
  17. copeland engineering manual

    Started by supertek65, 06-12-2010 05:05 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 3,575
    06-13-2010, 11:35 AM Go to last post
  18. Hmm Whalen water source heat pumps

    Started by hvacsteve, 06-09-2010 07:32 PM
    • Replies: 6
    • Views: 1,555
    06-13-2010, 08:11 AM Go to last post
  19. Dehumidifying a commercial building

    Started by zer0, 06-12-2010 10:44 AM
    2 Pages
    1 2
    • Replies: 13
    • Views: 2,918
    06-13-2010, 07:45 AM Go to last post
  20. YORK RECIP CHILLER

    Started by svc, 06-12-2010 07:06 PM
    • Replies: 2
    • Views: 617
    06-13-2010, 06:44 AM Go to last post
  21. TR1 Series VFD

    Started by crow1, 05-09-2010 04:24 PM
    • Replies: 12
    • Views: 4,313
    06-13-2010, 12:31 AM Go to last post
  22. Sanyo mini-split

    Started by dave1234, 06-10-2010 10:38 PM
    • Replies: 2
    • Views: 1,896
    06-13-2010, 12:29 AM Go to last post
  23. Voyager Eats EAC motors

    Started by madhat, 06-12-2010 08:29 PM
    • Replies: 2
    • Views: 532
    06-12-2010, 08:42 PM Go to last post
  24. Trane Heat Pump

    Started by davemaldo, 06-12-2010 06:00 PM
    • Replies: 0
    • Views: 365
    06-12-2010, 06:00 PM Go to last post
  25. chw piping design ?

    Started by newbe0507, 06-11-2010 05:26 PM
    • Replies: 5
    • Views: 2,428
    06-12-2010, 04:09 PM Go to last post
  26. COPELAMETIC

    Started by supertek65, 06-11-2010 08:52 PM
    • Replies: 2
    • Views: 659
    06-12-2010, 03:24 PM Go to last post
  27. Trane Precedent ran backwards

    Started by Randy S., 06-12-2010 11:22 AM
    • Replies: 1
    • Views: 720
    06-12-2010, 12:23 PM Go to last post
    • Replies: 1
    • Views: 526
    06-12-2010, 11:09 AM Go to last post
  28. Please Help! School Project

    Started by ayn, 06-11-2010 07:50 PM
    • Replies: 7
    • Views: 677
    06-12-2010, 09:09 AM Go to last post
  29. Trying to decide - 13 vs 17 SEER and economizer

    Started by FargoGuy, 06-23-2008 11:55 AM
    2 Pages
    1 2
    • Replies: 15
    • Views: 4,163
    06-11-2010, 07:49 PM Go to last post
  30. Very Poor Air Circulation

    Started by CoolB, 06-11-2010 11:56 AM
    • Replies: 3
    • Views: 1,075
    06-11-2010, 07:49 PM Go to last post
  31. Loud Trane screw compressor

    Started by terpfan_, 06-03-2010 08:50 PM
    • Replies: 12
    • Views: 2,528
    06-11-2010, 01:02 AM Go to last post
  32. Bard w/Hotgass Bypass

    Started by rowen, 05-29-2010 09:24 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 1,328
    06-10-2010, 09:45 PM Go to last post
  33. Hmm retrofitting 410 handler to run on 22

    Started by rav555, 06-10-2010 04:51 PM
    r410, r410 coil to 22
    • Replies: 4
    • Views: 571
    06-10-2010, 09:43 PM Go to last post
  34. NEED HELP WITH TROUBLESHOOTING COMPRESSOR PLEASE.

    Started by BRYON MEYER, 06-08-2010 10:20 AM
    2 Pages
    1 2
    • Replies: 15
    • Views: 1,211
    06-10-2010, 01:52 PM Go to last post
  35. CVGF Manuals??

    Started by bertoh, 07-10-2008 01:54 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 2,891
    06-10-2010, 09:06 AM Go to last post
  36. York YCAJ Millenium Can't Change FL Amps

    Started by Fmech, 06-06-2010 04:35 PM
    • Replies: 6
    • Views: 1,221
    06-09-2010, 10:14 PM Go to last post
  37. Trane xdx valves

    Started by iron, 02-10-2009 02:22 PM
    • Replies: 4
    • Views: 2,536
    06-09-2010, 09:50 PM Go to last post
  38. Sq. D model 6 motor control center ?

    Started by newbe0507, 06-09-2010 04:28 PM
    • Replies: 1
    • Views: 569
    06-09-2010, 07:40 PM Go to last post
  39. Trane rooftop unit

    Started by narkom, 05-28-2010 03:04 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 3,434
    06-09-2010, 03:14 PM Go to last post
  40. Dual Pilot Boiler

    Started by dejomatic, 06-01-2010 08:44 AM
    • Replies: 2
    • Views: 621
    06-08-2010, 03:05 PM Go to last post
  41. Electric Furnace Needed

    Started by sgraefe, 06-07-2010 05:01 PM
    • Replies: 3
    • Views: 415
    06-08-2010, 11:21 AM Go to last post
  42. 20 ton WSHP ?

    Started by newbe0507, 06-05-2010 11:35 AM
    • Replies: 9
    • Views: 817
    06-07-2010, 09:47 PM Go to last post
  43. trane i pak vfd

    Started by mesahvac, 05-28-2010 05:48 PM
    • Replies: 6
    • Views: 1,210
    06-06-2010, 10:25 AM Go to last post
  44. Confused Rooftop Heat Pump Creative Wiring?

    Started by ApplianceTech9, 05-30-2010 10:12 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 1,497
    06-06-2010, 12:28 AM Go to last post
    • Replies: 7
    • Views: 2,672
    06-05-2010, 09:10 PM Go to last post
  45. 19XR oil leak from sight glass

    Started by consolidmech, 06-04-2010 11:12 PM
    • Replies: 2
    • Views: 603
    06-05-2010, 08:15 PM Go to last post
  46. compressor question

    Started by bsw52876, 06-02-2010 09:27 PM
    • Replies: 10
    • Views: 869
    06-05-2010, 07:24 PM Go to last post
  47. AC UNIT FAILURES :-(

    Started by tiaochiyu, 06-01-2010 07:20 PM
    • Replies: 5
    • Views: 701
    06-05-2010, 03:42 PM Go to last post
  48. What is a "VFD Dew Prevention" on a chiller

    Started by hvac399, 06-02-2010 05:49 PM
    • Replies: 3
    • Views: 805
    06-05-2010, 11:33 AM Go to last post

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