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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: 9,132
    10-31-2011, 07:41 PM Go to last post
    • Replies: 0
    • Views: 7,961
    10-31-2011, 07:37 PM Go to last post
  1. Normal Thread Normal Threads

  2. Split System - Compressors and Estimate

    Started by Sharon121, 07-29-2012 09:42 PM
    • Replies: 1
    • Views: 860
    07-29-2012, 09:46 PM Go to last post
  3. Overflow Pan Fills On Central A/C

    Started by PM5K, 07-22-2012 11:32 PM
    • Replies: 10
    • Views: 2,417
    07-29-2012, 09:38 PM Go to last post
  4. How to design a duct?

    Started by zero14, 07-28-2012 12:04 AM
    • Replies: 3
    • Views: 1,245
    07-28-2012, 08:40 AM Go to last post
  5. Confused 100% Fresh Air Feed

    Started by FloridaWolf, 07-25-2012 03:25 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 2,700
    07-27-2012, 05:30 PM Go to last post
  6. Cooling fan reversing direction

    Started by cjbasye, 07-27-2012 09:16 AM
    • Replies: 2
    • Views: 1,095
    07-27-2012, 05:08 PM Go to last post
  7. Mini Split

    Started by Antonio129, 07-26-2012 03:46 PM
    • Replies: 2
    • Views: 1,084
    07-27-2012, 04:18 PM Go to last post
    • Replies: 0
    • Views: 765
    07-27-2012, 04:10 PM Go to last post
  8. Book On AHU

    Started by okieracing, 07-26-2012 02:53 PM
    • Replies: 0
    • Views: 938
    07-26-2012, 02:53 PM Go to last post
  9. Replacement for R22 (M099)

    Started by rains612, 07-25-2012 08:21 AM
    • Replies: 0
    • Views: 1,944
    07-25-2012, 08:21 AM Go to last post
  10. Simplicity program download from york

    Started by malaydave69, 07-24-2012 10:06 AM
    • Replies: 2
    • Views: 2,332
    07-24-2012, 09:03 PM Go to last post
  11. Confused Hydronic system: 3-way valve piping

    Started by government kid, 07-12-2012 09:09 AM
    • Replies: 7
    • Views: 3,720
    07-24-2012, 08:21 AM Go to last post
  12. John Zink

    Started by alanh7165, 07-23-2012 04:05 PM
    • Replies: 0
    • Views: 892
    07-23-2012, 04:05 PM Go to last post
  13. How long will a cooling tower last?

    Started by Maikerum, 06-22-2012 09:49 AM
    • Replies: 2
    • Views: 2,387
    07-23-2012, 06:26 AM Go to last post
    • Replies: 77
    • Views: 35,846
    07-22-2012, 05:58 PM Go to last post
  14. Question on boilers in Summertime

    Started by Maikerum, 07-16-2012 03:28 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 2,866
    07-21-2012, 10:29 PM Go to last post
  15. TRANE Chiller - RTHD SOLID STATE STARTER

    Started by HINDUSTANI, 07-20-2012 06:57 PM
    • Replies: 0
    • Views: 1,439
    07-20-2012, 06:57 PM Go to last post
  16. Hmm cooling tower, can it be too large?

    Started by Steve Rhodes, 07-18-2012 04:41 PM
    • Replies: 3
    • Views: 1,611
    07-20-2012, 01:17 PM Go to last post
  17. air lock in chilled water HVAC piping??

    Started by Steve Rhodes, 07-18-2012 03:47 PM
    • Replies: 4
    • Views: 3,069
    07-20-2012, 12:26 PM Go to last post
  18. Help Identify Larkin Condensing unit

    Started by ormondac, 07-20-2012 07:42 AM
    • Replies: 0
    • Views: 1,104
    07-20-2012, 07:42 AM Go to last post
  19. Air Handler Start-Up 1.3M Btu

    Started by Wombat, 07-18-2012 01:54 PM
    • Replies: 0
    • Views: 737
    07-18-2012, 01:54 PM Go to last post
  20. Cooling Tower Question

    Started by Mechcontr, 07-13-2012 10:03 AM
    • Replies: 7
    • Views: 2,038
    07-18-2012, 08:06 AM Go to last post
  21. Trane Blackbook link request

    Started by Murre, 07-17-2012 12:24 AM
    • Replies: 4
    • Views: 1,491
    07-18-2012, 12:29 AM Go to last post
  22. Refrigerant effects

    Started by Turbineer, 07-09-2012 12:31 PM
    • Replies: 4
    • Views: 1,454
    07-16-2012, 07:28 AM Go to last post
  23. Trane ac unit identification

    Started by WayneParis, 07-06-2012 05:21 PM
    • Replies: 6
    • Views: 2,828
    07-14-2012, 07:09 AM Go to last post
  24. Question on set-up for new pizza restaurant

    Started by davedmaine, 07-11-2012 03:59 PM
    • Replies: 6
    • Views: 2,076
    07-14-2012, 03:29 AM Go to last post
  25. desuper and heat pump water heater questions

    Started by bl23, 07-11-2012 02:33 AM
    • Replies: 4
    • Views: 1,356
    07-13-2012, 05:08 PM Go to last post
  26. TRANE, RTAC maintenance

    Started by franpac20, 06-19-2012 08:09 PM
    • Replies: 6
    • Views: 2,513
    07-12-2012, 05:35 PM Go to last post
  27. HVAC Survey - Independent Consultant

    Started by bpuccio, 07-10-2012 09:11 AM
    • Replies: 3
    • Views: 1,533
    07-10-2012, 11:40 PM Go to last post
  28. Emerson/CPC E2 Controller

    Started by swhatIdo, 06-21-2012 07:12 PM
    • Replies: 3
    • Views: 4,289
    07-10-2012, 10:19 PM Go to last post
  29. Mr Slim -inverter-

    Started by gilt, 07-06-2012 10:52 AM
    • Replies: 1
    • Views: 1,597
    07-10-2012, 08:33 PM Go to last post
  30. ultra low temp scientific freezers

    Started by thielges, 07-09-2012 08:17 PM
    • Replies: 4
    • Views: 2,092
    07-10-2012, 08:29 PM Go to last post
  31. Cool HVAC and I-cloud

    Started by RabeLR1, 07-10-2012 07:15 PM
    • Replies: 0
    • Views: 806
    07-10-2012, 07:15 PM Go to last post
    • Replies: 8
    • Views: 2,202
    07-10-2012, 05:42 PM Go to last post
  32. Problem with Liebert icom

    Started by khaxan, 07-06-2012 04:34 PM
    • Replies: 1
    • Views: 1,567
    07-09-2012, 05:58 PM Go to last post
  33. Commercial Walk In Freezer - PMs

    Started by DiningDirector100, 07-02-2012 12:46 PM
    • Replies: 2
    • Views: 1,279
    07-07-2012, 03:19 PM Go to last post
  34. carrier 30hxc oil problems????????

    Started by djgribbell, 11-12-2009 10:26 PM
    • Replies: 10
    • Views: 4,059
    07-06-2012, 08:31 PM Go to last post
  35. Specking Rooftop York gaspak A/C

    Started by Maikerum, 07-06-2012 03:06 PM
    • Replies: 1
    • Views: 1,146
    07-06-2012, 07:22 PM Go to last post
  36. York XTI-045 X 084-HAKA 046A

    Started by corny, 07-22-2011 07:18 AM
    • Replies: 4
    • Views: 3,922
    07-05-2012, 09:49 PM Go to last post
  37. Yet another carrier model #

    Started by Maikerum, 07-02-2012 01:59 PM
    • Replies: 2
    • Views: 1,246
    07-05-2012, 09:36 AM Go to last post
  38. Piping material for sprinkler system

    Started by hasni, 07-02-2012 09:22 AM
    • Replies: 0
    • Views: 956
    07-02-2012, 09:22 AM Go to last post
  39. Carrier Rooftop Gaspack Model #s

    Started by Maikerum, 06-29-2012 01:43 PM
    • Replies: 4
    • Views: 2,149
    07-01-2012, 01:41 PM Go to last post
  40. R22 Retrofit question

    Started by Straick, 06-27-2012 04:47 PM
    • Replies: 9
    • Views: 2,586
    06-30-2012, 10:24 PM Go to last post
  41. Atlanta HVAC contractor

    Started by MariettaGA, 06-20-2012 03:01 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 2,663
    06-28-2012, 02:06 PM Go to last post
  42. Dust Issue in Warehouse home.

    Started by Amitayus, 06-15-2012 05:16 AM
    • Replies: 11
    • Views: 3,006
    06-27-2012, 08:33 PM Go to last post
  43. CLOSED LOOP HVAC SEDIMENT

    Started by calypso, 06-27-2012 08:14 PM
    • Replies: 0
    • Views: 1,118
    06-27-2012, 08:14 PM Go to last post
  44. McQuay Alarm code

    Started by Lloyd Mc, 06-20-2012 01:17 PM
    • Replies: 2
    • Views: 2,118
    06-27-2012, 05:16 PM Go to last post
  45. Is there a chiller type comparison chart?

    Started by Grawburg, 05-22-2008 09:10 PM
    • Replies: 3
    • Views: 2,277
    06-27-2012, 05:12 PM Go to last post
  46. System controller recommendations ? PLC ?

    Started by Nihilist, 06-27-2012 11:09 AM
    • Replies: 1
    • Views: 839
    06-27-2012, 03:03 PM Go to last post
  47. Liebert 3000 Challenger freezing up

    Started by frontierfrost, 06-26-2012 09:31 AM
    freeze problems, liebert commercial hvac
    • Replies: 5
    • Views: 1,441
    06-27-2012, 08:39 AM Go to last post
  48. Confused Low pressure cut-off switch

    Started by Bobby67, 06-25-2012 02:58 PM
    • Replies: 5
    • Views: 3,637
    06-26-2012, 10:14 PM Go to last post

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