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Forum: Tech to Tech Chat - Commercial

FOR TECHNICAL CHAT BETWEEN INDUSTRY WORKERS ONLY. NO AOP OR DIY** This forum is for Technical Chat in the Commercial Industry and only within the limits of the Open area Rules concerning DIY. Any technical chat that goes too far will be removed or moved to the Pro Area.

  1. Sticky Thread Sticky Threads

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  2. Sticky Thread NO AOP posts here please. ONLY Tech to Tech chatter

    Started by Dad, 08-10-2011 05:34 PM
    • Replies: 0
    • Views: 4,487
    08-10-2011, 05:34 PM Go to last post
  1. Normal Thread Normal Threads

    Title / Thread Starter Replies / Views Last Post By
  2. cooling a small server room

    Started by serverroomcooling, 11-16-2004 12:04 PM
    99 Pages
    1 2 3 4 5 6 ... 99
    • Replies: 1,275
    • Views: 125,411
    07-28-2013, 10:10 AM Go to last post
  3. refrigerant restriction

    Started by johnnyb, 05-03-2014 11:37 AM
    19 Pages
    1 2 3 4 5 6 ... 19
    • Replies: 240
    • Views: 8,793
    08-02-2014, 10:11 PM Go to last post
    • Replies: 176
    • Views: 6,720
    07-25-2014, 05:26 PM Go to last post
  4. on call

    Started by northeastbeast, 08-02-2013 08:03 AM
    11 Pages
    1 2 3 4 5 6 ... 11
    • Replies: 134
    • Views: 12,581
    09-15-2013, 11:56 AM Go to last post
  5. Confused I NEED SOME HELP YCD180 gas fired LOW HEAT ON A CHURCH

    Started by pandatimer, 11-21-2014 06:50 PM
    10 Pages
    1 2 3 4 5 6 ... 10
    • Replies: 119
    • Views: 3,677
    11-30-2014, 03:46 AM Go to last post
  6. CO2 Purge for brazing?

    Started by dprimrose, 08-18-2009 11:19 PM
    9 Pages
    1 2 3 4 5 6 ... 9
    • Replies: 109
    • Views: 12,665
    10-20-2014, 07:02 PM Go to last post
    • Replies: 106
    • Views: 8,798
    01-29-2013, 08:00 PM Go to last post
  7. Confused Commercial technician, thinking about switching to residential.

    Started by comoutsid322, 04-23-2013 12:43 AM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 101
    • Views: 8,559
    09-28-2013, 03:17 PM Go to last post
  8. Carlyle compressor

    Started by Chris1570, 08-22-2013 09:03 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 97
    • Views: 8,541
    05-11-2014, 04:23 PM Go to last post
  9. Plant operator??

    Started by newtradesman, 10-21-2004 05:59 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 96
    • Views: 8,784
    01-21-2013, 06:50 PM Go to last post
    • Replies: 96
    • Views: 7,288
    02-04-2013, 12:14 PM Go to last post
  10. Anyone doing Family Dollar or Dollar General service?

    Started by MechTech2013, 06-06-2014 03:04 AM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 92
    • Views: 7,112
    09-02-2014, 12:15 AM Go to last post
  11. EXV problems on Carrier 30GT Chiller

    Started by hvac-alan, 09-02-2005 08:23 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 91
    • Views: 32,528
    08-08-2013, 07:59 PM Go to last post
  12. A Fun Question . . .

    Started by BBeerme, 06-27-2014 11:01 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 90
    • Views: 3,730
    07-04-2014, 02:38 AM Go to last post
  13. Brazing with refrigerant in pipe

    Started by HuNGRYTeCH, 05-22-2012 04:15 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 86
    • Views: 10,292
    06-21-2012, 11:06 PM Go to last post
  14. VRF

    Started by acman17, 05-19-2014 09:20 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 86
    • Views: 7,140
    07-09-2014, 07:20 PM Go to last post
  15. Trane compressor not coming on

    Started by bwd111, 08-15-2014 03:51 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 84
    • Views: 4,014
    08-30-2014, 12:42 AM Go to last post
  16. R22 replacements

    Started by rhumbard, 09-19-2014 10:46 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 84
    • Views: 3,457
    10-03-2014, 06:56 AM Go to last post
  17. Thumbs up 460V 1PH condenser fan motor ????

    Started by AcDOCnTRAINING, 02-07-2008 06:15 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 9,086
    09-17-2011, 11:28 PM Go to last post
  18. HIGH SUCTION PRESSURE / LOW HEAD PRESSURE ISSUE

    Started by EdHvacr, 09-02-2014 07:04 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 3,059
    09-06-2014, 07:09 PM Go to last post
  19. Flame sensor testing

    Started by btglow2894, 11-15-2014 03:19 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 2,999
    12-16-2014, 11:17 PM Go to last post
  20. Diagnosing a Weak Compressor

    Started by BBeerme, 06-08-2014 09:00 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 79
    • Views: 5,547
    10-02-2014, 09:42 PM Go to last post
  21. Question oil pressure problem

    Started by welling service, 11-17-2012 03:57 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 76
    • Views: 8,458
    01-15-2013, 01:13 AM Go to last post
  22. York Heat Exchangers

    Started by coolerik, 11-22-2013 10:35 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 76
    • Views: 4,013
    02-09-2014, 12:25 AM Go to last post
  23. Trane package unit

    Started by caheiman30, 08-15-2012 04:16 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 73
    • Views: 6,878
    08-22-2012, 01:45 AM Go to last post
  24. Nitrogen or No Nitrogen?

    Started by Grayline, 04-18-2013 08:49 AM
    6 Pages
    1 2 3 4 5 6
    • Replies: 73
    • Views: 6,103
    04-25-2013, 10:31 AM Go to last post
  25. Dolphin chemical free water treatment

    Started by colorado dave, 02-22-2005 07:38 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 71
    • Views: 21,361
    08-20-2014, 11:22 PM Go to last post
  26. Johnson Controls

    Started by huckleberryjay, 06-10-2010 11:33 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 10,326
    09-14-2011, 10:03 PM Go to last post
  27. Torching evaps

    Started by leaker2, 10-23-2013 10:23 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 3,932
    11-14-2013, 04:58 PM Go to last post
  28. compressor black over current box tripping

    Started by raven22, 05-17-2013 08:51 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 69
    • Views: 3,489
    05-24-2013, 07:37 PM Go to last post
  29. No one ever replaces sheeves

    Started by marter, 09-13-2014 10:37 AM
    6 Pages
    1 2 3 4 5 6
    • Replies: 69
    • Views: 3,149
    10-02-2014, 08:19 PM Go to last post
  30. Brazing copper to brass

    Started by OBogue, 07-28-2014 06:16 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 66
    • Views: 3,564
    11-02-2014, 05:40 PM Go to last post
  31. Hours to Pm a rooftop.

    Started by mikepinnacle, 08-14-2013 02:22 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 65
    • Views: 5,888
    12-12-2013, 11:08 PM Go to last post
  32. Frown Maybe bypassing compressor

    Started by anders13, 08-08-2014 03:47 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 65
    • Views: 3,292
    08-16-2014, 01:19 AM Go to last post
  33. This is why Preventive Maintenance is a waste of money.

    Started by Mike19, 08-21-2014 01:16 AM
    5 Pages
    1 2 3 4 5
    • Replies: 64
    • Views: 4,903
    10-15-2014, 11:52 PM Go to last post
  34. True GDM 49F

    Started by tootiredtoargue, 11-30-2014 06:33 PM
    5 Pages
    1 2 3 4 5
    • Replies: 64
    • Views: 1,696
    12-06-2014, 05:00 PM Go to last post
  35. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 01:48 PM
    5 Pages
    1 2 3 4 5
    • Replies: 62
    • Views: 10,280
    07-15-2014, 12:57 PM Go to last post
  36. RTU's not cooling the building enough

    Started by abcando, 07-06-2012 01:41 AM
    5 Pages
    1 2 3 4 5
    • Replies: 61
    • Views: 6,446
    07-14-2012, 10:33 PM Go to last post
  37. High superheat with NU22B

    Started by Jbart, 07-06-2013 10:02 PM
    5 Pages
    1 2 3 4 5
    • Replies: 61
    • Views: 4,185
    07-21-2013, 05:56 PM Go to last post
    • Replies: 61
    • Views: 4,848
    03-10-2014, 05:16 AM Go to last post
  38. liebert rep

    Started by energy mech, 02-11-2014 04:27 PM
    5 Pages
    1 2 3 4 5
    • Replies: 61
    • Views: 4,715
    03-26-2014, 10:01 PM Go to last post
  39. RTAA125 low on 22 or ...?

    Started by valdelocc, 04-22-2013 09:12 PM
    5 Pages
    1 2 3 4 5
    • Replies: 60
    • Views: 4,339
    10-23-2013, 09:56 AM Go to last post
  40. Roof Top AC unit not cooling

    Started by Matthonda98, 09-02-2014 02:30 PM
    5 Pages
    1 2 3 4 5
    • Replies: 60
    • Views: 2,444
    09-08-2014, 11:15 PM Go to last post
  41. Rooftop Heat Exchanger Failure Causes???

    Started by andrewd33, 12-07-2011 04:52 PM
    5 Pages
    1 2 3 4 5
    • Replies: 58
    • Views: 4,788
    01-21-2012, 04:01 PM Go to last post
  42. Move to union?

    Started by CFESAmasterEGSR, 07-07-2014 11:49 PM
    5 Pages
    1 2 3 4 5
    • Replies: 58
    • Views: 2,586
    07-27-2014, 02:07 AM Go to last post
  43. TRANE UCP BOARD - HEAT DOES NOT WORK ???

    Started by edcolonhvacr, 11-08-2014 06:50 PM
    5 Pages
    1 2 3 4 5
    • Replies: 57
    • Views: 2,358
    11-19-2014, 02:10 AM Go to last post
  44. Moving compressor to roof

    Started by Capz, 07-24-2013 09:40 PM
    5 Pages
    1 2 3 4 5
    • Replies: 55
    • Views: 3,977
    08-18-2013, 09:18 PM Go to last post
  45. Typical overtime policies?

    Started by mcairrepair, 07-26-2012 11:06 PM
    5 Pages
    1 2 3 4 5
    • Replies: 54
    • Views: 9,289
    11-13-2012, 09:37 AM Go to last post
  46. ISCEON® MO99™ refrigerant ( R-438a )

    Started by freonguy, 08-18-2009 06:15 PM
    5 Pages
    1 2 3 4 5
    • Replies: 53
    • Views: 26,173
    09-20-2012, 12:16 PM Go to last post
  47. First day of a new career

    Started by colortwang, 02-03-2012 11:37 PM
    5 Pages
    1 2 3 4 5
    • Replies: 52
    • Views: 3,747
    02-07-2012, 01:45 AM Go to last post

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