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Forum: AOP Commercial HVAC

FOR EQUIPMENT OWNERS ONLY Questions and discussions regarding Commercial Buildings

  1. Sticky Thread Sticky Threads

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

    Started by Dad, 10-31-2011 07:41 PM
    • Replies: 0
    • Views: 11,503
    10-31-2011, 07:41 PM Go to last post
    • Replies: 0
    • Views: 9,968
    10-31-2011, 07:37 PM Go to last post
  1. Normal Thread Normal Threads

  2. Trane zone sensor recomendation

    Started by ChuckHVAC, 01-09-2009 03:02 PM
    • Replies: 2
    • Views: 1,884
    01-10-2009, 01:20 AM Go to last post
  3. Stupid Roll-Out Limits!!

    Started by thegeneral, 01-08-2009 08:06 PM
    • Replies: 10
    • Views: 1,487
    01-09-2009, 11:28 PM Go to last post
  4. Hmm Twinned furnaces keep replacing blowers!!!!

    Started by Mr. Thermo, 10-12-2008 02:32 PM
    • Replies: 11
    • Views: 4,561
    01-09-2009, 02:13 PM Go to last post
  5. York Equipment Literature

    Started by chadtech, 01-06-2009 09:17 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 3,510
    01-09-2009, 01:37 PM Go to last post
  6. Duct static vs CFM

    Started by djken, 12-29-2004 09:09 PM
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 12,013
    01-09-2009, 11:28 AM Go to last post
  7. 30GX- EXV / DSIO problem

    Started by HeatXfer, 09-06-2008 05:39 PM
    • Replies: 11
    • Views: 2,234
    01-09-2009, 09:18 AM Go to last post
  8. need wiring schematic

    Started by codyjay, 01-07-2009 09:17 PM
    • Replies: 2
    • Views: 911
    01-08-2009, 06:32 PM Go to last post
  9. Help!!! Old J/C SCR problem

    Started by duckfitter, 01-08-2009 02:40 PM
    • Replies: 1
    • Views: 617
    01-08-2009, 05:24 PM Go to last post
  10. Confused HELP!Model 203C Lawler Pour Pt Bath

    Started by sanantoniotech, 01-08-2009 11:07 AM
    • Replies: 0
    • Views: 505
    01-08-2009, 11:07 AM Go to last post
  11. Hey york56

    Started by rnoel, 01-07-2009 11:15 PM
    • Replies: 1
    • Views: 658
    01-08-2009, 09:47 AM Go to last post
  12. York 'YT'

    Started by rnoel, 12-29-2008 09:05 PM
    • Replies: 5
    • Views: 1,234
    01-07-2009, 11:10 PM Go to last post
  13. York YCAV0187

    Started by cjobe, 01-02-2009 04:55 PM
    • Replies: 5
    • Views: 1,617
    01-07-2009, 09:13 PM Go to last post
  14. older trane unit

    Started by emtim, 01-07-2009 09:09 PM
    • Replies: 0
    • Views: 625
    01-07-2009, 09:09 PM Go to last post
  15. 80 Ton Chiller, Compressor 1 FAILURE

    Started by crised, 12-29-2008 05:16 PM
    5 Pages
    1 2 3 4 5
    • Replies: 64
    • Views: 6,324
    01-07-2009, 08:48 PM Go to last post
  16. direct fired units / exhaust requirements

    Started by Billll, 01-01-2009 02:05 AM
    • Replies: 5
    • Views: 1,222
    01-07-2009, 08:28 PM Go to last post
  17. Carrier Heat Pump

    Started by johndief, 01-05-2009 03:37 PM
    • Replies: 7
    • Views: 2,018
    01-07-2009, 08:07 PM Go to last post
  18. Confused Novar system

    Started by creiken, 12-02-2008 12:47 AM
    2 Pages
    1 2
    • Replies: 23
    • Views: 6,466
    01-07-2009, 08:04 PM Go to last post
  19. ANY CHILLER GUYS SLOW

    Started by acjourneyman, 01-04-2009 10:49 PM
    • Replies: 11
    • Views: 1,515
    01-07-2009, 11:11 AM Go to last post
  20. trane chiller

    Started by JEFF CROWDER, 01-02-2009 09:40 AM
    2 Pages
    1 2
    • Replies: 23
    • Views: 2,489
    01-06-2009, 08:14 PM Go to last post
  21. AUTOMATED LOGIC

    Started by sandersonhpitx, 01-06-2009 01:58 PM
    • Replies: 1
    • Views: 677
    01-06-2009, 07:55 PM Go to last post
  22. Trane RTHB255 Phase Seq Monitor:Phase Reversal

    Started by CASpro, 01-06-2009 01:25 PM
    • Replies: 2
    • Views: 2,031
    01-06-2009, 07:52 PM Go to last post
  23. York ZB6W Oil pump drive problem.

    Started by RonBrown, 11-11-2008 04:58 PM
    2 Pages
    1 2
    • Replies: 22
    • Views: 5,307
    01-06-2009, 03:27 AM Go to last post
  24. Carrier chiller controls?

    Started by pecmsg, 01-03-2009 12:29 PM
    • Replies: 6
    • Views: 1,758
    01-05-2009, 10:38 PM Go to last post
  25. Repairing water cooled condenser tube sheet

    Started by pete_d, 12-04-2008 11:32 PM
    • Replies: 7
    • Views: 3,810
    01-05-2009, 08:48 PM Go to last post
  26. Water coil freezepumps: how to size them?

    Started by robert morrison, 01-05-2009 08:58 AM
    • Replies: 1
    • Views: 525
    01-05-2009, 10:23 AM Go to last post
  27. trane rtaa155 condensor fans

    Started by habs, 01-04-2009 10:39 PM
    • Replies: 2
    • Views: 1,540
    01-05-2009, 12:11 AM Go to last post
  28. pressure switch

    Started by emtim, 01-04-2009 08:51 PM
    • Replies: 3
    • Views: 798
    01-04-2009, 10:47 PM Go to last post
  29. York Model # YSBBBBSO Questions

    Started by davo, 10-16-2008 11:39 AM
    • Replies: 6
    • Views: 1,038
    01-04-2009, 09:46 PM Go to last post
  30. Exclamation cracked HE 2 year ICP rooftop

    Started by supernova72, 01-04-2009 12:52 PM
    • Replies: 4
    • Views: 1,528
    01-04-2009, 08:22 PM Go to last post
  31. Heat pump goin into lockout!!

    Started by Tommy1010, 01-04-2009 08:07 PM
    • Replies: 1
    • Views: 602
    01-04-2009, 08:14 PM Go to last post
  32. York chiller

    Started by town, 10-31-2008 02:30 PM
    • Replies: 4
    • Views: 1,727
    01-04-2009, 07:00 PM Go to last post
  33. VFD YT's and bellows seals

    Started by Randy S., 01-02-2009 11:05 PM
    • Replies: 8
    • Views: 979
    01-03-2009, 04:47 PM Go to last post
  34. Liebert humidifier pans

    Started by bowhunter21, 12-01-2008 03:38 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 6,142
    01-03-2009, 02:57 PM Go to last post
  35. Gas Furnace

    Started by grendil, 01-03-2009 10:34 AM
    • Replies: 5
    • Views: 819
    01-03-2009, 01:49 PM Go to last post
  36. Knucklehead!

    Started by iamcanadiandave, 10-30-2008 09:32 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 3,028
    01-03-2009, 12:50 AM Go to last post
  37. Hot water valves

    Started by gazoo, 12-31-2008 11:40 AM
    • Replies: 2
    • Views: 704
    01-02-2009, 08:00 PM Go to last post
  38. Carrier Chiller 80 ton ReplacementMueller Valves

    Started by crised, 12-31-2008 11:14 AM
    • Replies: 11
    • Views: 2,394
    01-02-2009, 07:32 PM Go to last post
  39. Thumbs down Trane Screws moving to Mexico??

    Started by drivewizard, 12-18-2008 01:38 AM
    4 Pages
    1 2 3 4
    • Replies: 48
    • Views: 9,264
    01-01-2009, 07:21 PM Go to last post
    • Replies: 3
    • Views: 660
    01-01-2009, 10:34 AM Go to last post
  40. UCON 22

    Started by chillerguru, 12-30-2008 07:44 PM
    • Replies: 1
    • Views: 999
    12-31-2008, 08:17 PM Go to last post
  41. Climate Master water source hp freezing-up

    Started by dttx2222, 12-22-2008 11:15 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 1,950
    12-31-2008, 08:13 PM Go to last post
  42. Honeywell Modutrol IV Motor

    Started by refermech, 12-30-2008 03:58 PM
    • Replies: 4
    • Views: 1,655
    12-31-2008, 06:52 PM Go to last post
  43. bubble wrap duct insulation

    Started by richper, 12-29-2008 10:04 PM
    • Replies: 6
    • Views: 2,491
    12-31-2008, 06:46 PM Go to last post
  44. Tempspec

    Started by sampson777, 11-02-2007 03:12 PM
    • Replies: 3
    • Views: 2,932
    12-31-2008, 11:53 AM Go to last post
  45. why do Air handlers need a secondary drain pan

    Started by seyedaed, 12-19-2008 10:50 AM
    • Replies: 8
    • Views: 1,815
    12-31-2008, 07:58 AM Go to last post
  46. Confused York Split for Server Room

    Started by kanodogg, 12-06-2008 04:32 PM
    • Replies: 8
    • Views: 2,927
    12-30-2008, 07:49 AM Go to last post
  47. Trane 7.5 Ton Split Heat Pump

    Started by ts ac tech, 12-18-2008 08:35 AM
    2 Pages
    1 2
    • Replies: 21
    • Views: 8,136
    12-29-2008, 09:55 PM Go to last post
  48. Liquid line

    Started by herschmidt, 12-29-2008 09:01 PM
    • Replies: 4
    • Views: 783
    12-29-2008, 09:52 PM Go to last post
  49. York Chiller going off on low amps?

    Started by jimmyd5, 07-11-2008 11:15 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 3,756
    12-29-2008, 08:42 PM Go to last post
  50. phnuematic control problem

    Started by mechforlife, 12-18-2008 01:29 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 1,675
    12-29-2008, 05:35 PM Go to last post

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