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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: 6,551
    10-31-2011, 07:41 PM Go to last post
    • Replies: 0
    • Views: 5,623
    10-31-2011, 07:37 PM Go to last post
  1. Normal Thread Normal Threads

  2. Filters In Fan Powered Boxes

    Started by rains612, 05-29-2012 08:42 AM
    • Replies: 2
    • Views: 1,390
    05-30-2012, 11:37 PM Go to last post
  3. HVAC in the mushroom industry?

    Started by ConnorMeyers, 05-29-2012 09:27 AM
    commercial, commercial hvac, hvac
    • Replies: 6
    • Views: 3,195
    05-30-2012, 09:48 PM Go to last post
  4. Hmm Trane Model #

    Started by dhigs, 05-29-2012 07:58 PM
    • Replies: 2
    • Views: 1,199
    05-30-2012, 08:56 AM Go to last post
  5. another liebert humidity problem

    Started by brownplus, 03-27-2012 06:41 PM
    • Replies: 2
    • Views: 1,803
    05-29-2012, 10:42 AM Go to last post
  6. I have a liebert humidity problem also

    Started by CargCorleg, 05-28-2012 11:37 AM
    • Replies: 2
    • Views: 747
    05-29-2012, 10:14 AM Go to last post
  7. wastewater lineset failure

    Started by jswin, 04-23-2012 01:26 PM
    • Replies: 9
    • Views: 1,507
    05-29-2012, 10:05 AM Go to last post
  8. Variable air volume (VAV)

    Started by Sami Sarhan, 05-19-2012 02:19 AM
    • Replies: 2
    • Views: 1,037
    05-28-2012, 11:52 PM Go to last post
  9. Condo cooling - Fan coil issue or Insuffiency

    Started by QuantumJump, 05-25-2012 12:22 PM
    • Replies: 4
    • Views: 3,808
    05-26-2012, 07:37 PM Go to last post
  10. Dual circuit over lapping condensers

    Started by Cat_Utilities, 05-24-2012 08:31 PM
    • Replies: 3
    • Views: 941
    05-25-2012, 08:49 PM Go to last post
  11. Replacement for an Invensys MN-S4?

    Started by Ra25, 05-25-2012 01:00 PM
    • Replies: 1
    • Views: 1,162
    05-25-2012, 06:47 PM Go to last post
  12. Thumbs up HVAC equipment selection

    Started by abbasamazai, 05-11-2012 02:08 PM
    • Replies: 5
    • Views: 1,578
    05-18-2012, 12:42 PM Go to last post
  13. Question Another Txv power head

    Started by bwd111, 05-04-2012 11:52 AM
    • Replies: 3
    • Views: 1,391
    05-17-2012, 05:54 PM Go to last post
  14. !!!! RC Group - Eagle T300.P.4.Y2.D !!!!

    Started by mateiserban, 05-17-2012 07:04 AM
    • Replies: 0
    • Views: 986
    05-17-2012, 07:04 AM Go to last post
  15. Tracer Summit Database Error, please help

    Started by Dwaino, 04-24-2012 02:16 PM
    • Replies: 3
    • Views: 987
    05-15-2012, 06:25 AM Go to last post
  16. Smoke detectors / rtu units

    Started by Acmaster111, 05-02-2012 03:41 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 4,077
    05-12-2012, 09:20 AM Go to last post
  17. Chiller 30Ran10 fault T116

    Started by jdejesus, 05-09-2012 09:15 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 2,729
    05-12-2012, 08:53 AM Go to last post
  18. heresite factory coating

    Started by mack*is*tired, 02-01-2006 04:41 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 7,228
    05-09-2012, 10:06 PM Go to last post
  19. York YS correct oil types

    Started by Cadrion, 05-08-2012 06:08 PM
    • Replies: 1
    • Views: 932
    05-08-2012, 09:25 PM Go to last post
  20. York Optiview problems

    Started by poppop, 05-17-2007 10:16 AM
    • Replies: 12
    • Views: 4,321
    05-08-2012, 03:56 PM Go to last post
  21. Thermmostat settings

    Started by BobbyL, 04-19-2012 09:37 PM
    • Replies: 6
    • Views: 1,415
    05-08-2012, 11:00 AM Go to last post
  22. Question Tonnage of a Trane unit?

    Started by Electron_Sam78, 05-08-2012 09:12 AM
    • Replies: 3
    • Views: 2,814
    05-08-2012, 10:49 AM Go to last post
  23. Lightbulb Pipe Material Selection

    Started by ChilledOutAussie, 05-06-2012 08:17 PM
    copper, stainless, steel
    • Replies: 6
    • Views: 2,962
    05-07-2012, 09:55 PM Go to last post
  24. 36'' chilled water pipes??

    Started by glennwith2ns, 01-30-2007 10:40 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 3,801
    05-06-2012, 10:17 AM Go to last post
  25. Floor level cold air distribution

    Started by innova, 05-05-2012 06:53 AM
    • Replies: 1
    • Views: 871
    05-05-2012, 07:51 AM Go to last post
  26. Mcquay alr help

    Started by Kerik7, 05-04-2012 11:33 AM
    • Replies: 0
    • Views: 799
    05-04-2012, 11:33 AM Go to last post
  27. cactus56

    Started by choya56, 04-18-2012 03:36 PM
    • Replies: 7
    • Views: 1,322
    05-04-2012, 11:02 AM Go to last post
  28. Fan-powered VAV's with a ducted return

    Started by psu104, 05-03-2012 02:38 PM
    • Replies: 4
    • Views: 1,471
    05-04-2012, 10:37 AM Go to last post
    • Replies: 1
    • Views: 1,553
    05-03-2012, 02:16 PM Go to last post
  29. Question Turbocor Compressor

    Started by chillywilly961, 06-28-2004 11:09 AM
    • Replies: 12
    • Views: 2,817
    05-02-2012, 09:11 PM Go to last post
  30. TRANE air cooled Chillers RTAD RTAC

    Started by Therock7979, 04-22-2012 03:02 PM
    • Replies: 8
    • Views: 2,521
    05-02-2012, 03:25 AM Go to last post
  31. Question 30 gx carrie chiller tripping

    Started by moideen, 05-30-2008 11:22 PM
    • Replies: 8
    • Views: 3,191
    04-27-2012, 05:55 PM Go to last post
    • Replies: 6
    • Views: 4,628
    04-27-2012, 05:24 PM Go to last post
  32. 40 ton refrig. rack oil pressure issue

    Started by iahvac, 04-26-2012 08:40 PM
    • Replies: 0
    • Views: 890
    04-26-2012, 08:40 PM Go to last post
  33. York YCAJ76SU646PB

    Started by MaxR, 04-26-2012 05:14 PM
    • Replies: 0
    • Views: 830
    04-26-2012, 05:14 PM Go to last post
  34. Renewaire ERV units

    Started by zuke19, 04-24-2012 09:08 AM
    • Replies: 1
    • Views: 1,505
    04-25-2012, 05:56 PM Go to last post
  35. Disconnected ducts in the ceiling

    Started by Insights, 04-25-2012 10:20 AM
    • Replies: 2
    • Views: 1,206
    04-25-2012, 03:58 PM Go to last post
  36. voyager fan

    Started by Stump659, 04-24-2012 07:25 AM
    • Replies: 4
    • Views: 1,015
    04-25-2012, 05:57 AM Go to last post
  37. YCAS Slide valve problem?

    Started by CJ868, 04-18-2012 12:25 PM
    • Replies: 6
    • Views: 1,778
    04-22-2012, 11:43 PM Go to last post
  38. Hmm Trane Model Numbers?

    Started by Paulio, 03-09-2008 11:02 PM
    3 Pages
    1 2 3
    • Replies: 33
    • Views: 64,958
    04-22-2012, 04:19 PM Go to last post
  39. 0-10 vdc actuator with a 4-20 ma output

    Started by iahvac, 04-19-2012 08:42 PM
    • Replies: 1
    • Views: 1,412
    04-22-2012, 12:07 AM Go to last post
  40. Question on a gas electric package unit

    Started by Cienfuegos, 04-18-2012 11:54 PM
    • Replies: 2
    • Views: 1,110
    04-21-2012, 11:50 AM Go to last post
  41. Question BTU Meter Billing

    Started by ratheepkrk, 05-29-2011 07:33 AM
    • Replies: 2
    • Views: 2,697
    04-20-2012, 09:40 PM Go to last post
  42. Question HVAC software recommendations

    Started by blackpotter, 09-23-2003 09:11 AM
    • Replies: 4
    • Views: 2,373
    04-20-2012, 06:11 PM Go to last post
  43. freeze stat tripping

    Started by rcjohn, 03-12-2012 04:38 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 4,441
    04-19-2012, 04:31 PM Go to last post
  44. Life of humidifier heating elements?

    Started by moshmont, 04-19-2012 06:37 AM
    • Replies: 0
    • Views: 812
    04-19-2012, 06:37 AM Go to last post
  45. Thumbs down High oil temp trip?

    Started by prestonegreen, 04-16-2012 09:50 AM
    • Replies: 3
    • Views: 886
    04-18-2012, 08:46 AM Go to last post
  46. What SEER would an 18 year old unit be?

    Started by Maikerum, 04-12-2012 04:04 PM
    • Replies: 4
    • Views: 1,328
    04-16-2012, 10:21 PM Go to last post
  47. Internally Grounded RTU Compressor

    Started by bandit2012, 04-06-2012 02:52 PM
    • Replies: 11
    • Views: 2,039
    04-16-2012, 09:20 PM Go to last post
  48. York ECO2 BACnet IP

    Started by pmstate, 04-16-2012 10:03 AM
    • Replies: 2
    • Views: 1,290
    04-16-2012, 04:50 PM Go to last post
  49. Lennox

    Started by mrbean, 04-14-2012 11:42 AM
    • Replies: 5
    • Views: 1,255
    04-15-2012, 08:56 AM Go to last post

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