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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: 4,369
    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: 3,648
    10-31-2011, 07:37 PM Go to last post
  1. York Chiller Half phase fault

    Started by snsici, 01-08-2012 11:00 PM
    • Replies: 1
    • Views: 1,081
    01-09-2012, 04:45 AM Go to last post
  2. Defrost cycle detail

    Started by Armor, 01-01-2012 10:10 PM
    • Replies: 3
    • Views: 736
    01-07-2012, 10:46 PM Go to last post
  3. Confused Flame failure

    Started by shadow1461, 01-06-2012 08:41 AM
    • Replies: 3
    • Views: 912
    01-06-2012, 05:46 PM Go to last post
  4. Large Storage Garage Ventilation

    Started by csm088, 01-05-2012 03:05 PM
    • Replies: 1
    • Views: 1,031
    01-05-2012, 05:03 PM Go to last post
  5. ventilation fire stopper

    Started by tehas, 12-20-2011 04:39 AM
    • Replies: 5
    • Views: 1,109
    01-05-2012, 12:18 PM Go to last post
    • Replies: 6
    • Views: 1,863
    01-04-2012, 04:16 PM Go to last post
  6. Add Workbench Embedded after purchase?

    Started by screel, 01-04-2012 08:32 AM
    • Replies: 0
    • Views: 708
    01-04-2012, 08:32 AM Go to last post
  7. Too little supply no return??

    Started by stebs, 01-01-2012 06:20 PM
    • Replies: 5
    • Views: 1,454
    01-04-2012, 12:52 AM Go to last post
  8. COMMERCIAL APARTMENT REMODEL

    Started by JEFF123, 12-29-2011 01:51 PM
    • Replies: 8
    • Views: 1,018
    01-03-2012, 05:51 PM Go to last post
  9. Confused Trane Benifits Changes

    Started by mecanik, 04-13-2007 12:27 AM
    • Replies: 9
    • Views: 2,969
    01-02-2012, 10:26 PM Go to last post
  10. Dating units and insulation not supported

    Started by Maikerum, 12-30-2011 02:29 PM
    • Replies: 7
    • Views: 996
    01-01-2012, 07:18 PM Go to last post
  11. high head pressure

    Started by mfi, 06-09-2006 09:27 PM
    • Replies: 11
    • Views: 15,377
    01-01-2012, 07:23 AM Go to last post
  12. Condensing units vs dry coolers?

    Started by Grawburg, 06-21-2008 03:47 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 21,427
    12-30-2011, 01:14 PM Go to last post
  13. Class I Div. II HVAC controls

    Started by gmf70, 12-26-2011 02:25 PM
    class, thermostat
    • Replies: 2
    • Views: 2,155
    12-29-2011, 07:20 PM Go to last post
  14. Trane propane rooftop heatfail

    Started by mrmatt, 12-29-2011 08:44 AM
    • Replies: 1
    • Views: 588
    12-29-2011, 08:49 AM Go to last post
  15. propane oven

    Started by mrmatt, 12-26-2011 02:10 PM
    • Replies: 2
    • Views: 765
    12-29-2011, 08:21 AM Go to last post
  16. Question Bad Idea "Heat pumps"for elderly care facility?

    Started by Joewf, 12-24-2011 12:32 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 1,579
    12-28-2011, 09:37 PM Go to last post
  17. How old is this unit?

    Started by Maikerum, 12-19-2011 12:43 PM
    • Replies: 4
    • Views: 1,116
    12-28-2011, 03:53 PM Go to last post
    • Replies: 5
    • Views: 1,582
    12-27-2011, 09:27 PM Go to last post
  18. How old is this 2nd unit?

    Started by Maikerum, 12-19-2011 12:51 PM
    • Replies: 5
    • Views: 891
    12-19-2011, 04:54 PM Go to last post
  19. changing out an economizer moter

    Started by Stan the man, 12-16-2011 09:08 PM
    • Replies: 2
    • Views: 1,060
    12-19-2011, 11:51 AM Go to last post
    • Replies: 7
    • Views: 4,731
    12-16-2011, 10:37 PM Go to last post
  20. Trane YCD151 IDM NEVER STOPS

    Started by SeanH, 12-15-2011 12:31 AM
    • Replies: 3
    • Views: 7,193
    12-15-2011, 08:17 PM Go to last post
  21. how to heat just to keep above freezing

    Started by garfields, 12-08-2011 08:31 AM
    • Replies: 4
    • Views: 1,213
    12-15-2011, 05:16 PM Go to last post
  22. Fan Coil / Dehumidification

    Started by bbtman, 12-12-2011 05:01 PM
    • Replies: 1
    • Views: 6,392
    12-13-2011, 08:01 PM Go to last post
  23. Liebert 3000 humidifier

    Started by blckclvr, 11-17-2011 09:18 AM
    • Replies: 3
    • Views: 6,825
    12-13-2011, 10:02 AM Go to last post
  24. Question Boiler not calculating hot water

    Started by SubaruB4, 12-11-2011 06:51 PM
    • Replies: 1
    • Views: 668
    12-11-2011, 07:18 PM Go to last post
  25. Power Flame Burner Setup Problem

    Started by jogas, 11-16-2006 05:28 AM
    • Replies: 6
    • Views: 9,961
    12-11-2011, 01:03 PM Go to last post
  26. Hmm wat should i do

    Started by moncho, 12-09-2011 12:13 AM
    • Replies: 3
    • Views: 866
    12-10-2011, 10:06 PM Go to last post
  27. Hmm CUSTOMER DID NOT WINTERIZE PROPERLY NOW WHAT?

    Started by hvacdoctor, 03-20-2009 12:47 PM
    • Replies: 3
    • Views: 1,368
    12-08-2011, 05:30 AM Go to last post
  28. Ellectronic ignition problems

    Started by Mr. Nobody, 12-06-2011 04:15 PM
    • Replies: 2
    • Views: 776
    12-07-2011, 05:40 PM Go to last post
  29. Trane rtu reheat problems

    Started by carman, 05-10-2010 08:25 PM
    • Replies: 7
    • Views: 2,255
    12-07-2011, 04:46 PM Go to last post
  30. compressor changeout ( 3 phase to 1 phase )

    Started by craig andersen, 12-04-2011 08:14 PM
    • Replies: 10
    • Views: 1,372
    12-06-2011, 09:53 PM Go to last post
  31. Coil Cleaning

    Started by ascj, 12-21-2008 12:12 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 2,596
    12-05-2011, 05:33 PM Go to last post
  32. Partner on projects

    Started by Powertech, 12-05-2011 11:51 AM
    • Replies: 0
    • Views: 619
    12-05-2011, 11:51 AM Go to last post
  33. Measuring cycles

    Started by Powertech, 12-05-2011 11:38 AM
    • Replies: 0
    • Views: 553
    12-05-2011, 11:38 AM Go to last post
  34. McQuay AVD-121B Replacement

    Started by ctechmd, 11-16-2011 06:32 PM
    • Replies: 2
    • Views: 976
    12-04-2011, 08:10 PM Go to last post
  35. Reliatel replacement ignition module

    Started by wvuboarder, 12-04-2011 10:28 AM
    • Replies: 1
    • Views: 674
    12-04-2011, 10:41 AM Go to last post
  36. Confused Resistance heating - Single vs Three Phase

    Started by SAM73, 11-30-2011 09:50 AM
    • Replies: 5
    • Views: 1,715
    12-04-2011, 03:52 AM Go to last post
  37. Help to choose new Rooftop HVAC Unit

    Started by Helplease, 11-16-2011 07:37 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 2,478
    12-03-2011, 03:49 AM Go to last post
  38. Lennox Heat Pump Roof Top Unit.

    Started by kanodogg, 04-01-2008 03:31 PM
    • Replies: 5
    • Views: 3,474
    12-01-2011, 04:28 PM Go to last post
  39. Walk In Freezer Defrost Cycle Question

    Started by Maven445, 11-28-2011 07:18 PM
    • Replies: 6
    • Views: 1,965
    11-29-2011, 10:06 PM Go to last post
  40. Red face Code Information

    Started by W Ahlberg, 11-27-2011 08:58 PM
    • Replies: 5
    • Views: 1,095
    11-29-2011, 06:54 AM Go to last post
  41. LCHA25 CHILLER

    Started by melyork11, 11-28-2011 07:59 AM
    • Replies: 1
    • Views: 651
    11-28-2011, 06:29 PM Go to last post
  42. Modine duct gas furnace

    Started by Jbenson, 11-27-2011 11:48 AM
    • Replies: 1
    • Views: 992
    11-27-2011, 08:37 PM Go to last post
  43. Elevator HVAC

    Started by mcguire07, 06-24-2011 12:56 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 4,781
    11-26-2011, 11:02 PM Go to last post
  44. design a very long exhaust air duct (300 metres)

    Started by aerojason, 09-05-2011 07:49 PM
    • Replies: 6
    • Views: 1,735
    11-26-2011, 09:34 AM Go to last post
  45. Trane Tracker displays question marks

    Started by jerryhaney, 11-23-2011 02:41 PM
    tracker, trane, voyager
    • Replies: 1
    • Views: 1,301
    11-24-2011, 11:13 PM Go to last post
  46. York RTU Model: D7CG060

    Started by Fixedit, 10-31-2011 11:44 AM
    2 Pages
    1 2
    • Replies: 14
    • Views: 4,141
    11-24-2011, 12:02 AM Go to last post

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