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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

    Title / Thread Starter Replies / Views Last Post By
  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: 4,696
    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: 127,566
    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: 9,437
    08-02-2014, 10:11 PM Go to last post
    • Replies: 176
    • Views: 7,036
    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: 12,880
    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: 4,226
    11-30-2014, 03:46 AM Go to last post
  6. 3 phase question

    Started by YatYas, 01-08-2015 07:18 PM
    10 Pages
    1 2 3 4 5 6 ... 10
    • Replies: 117
    • Views: 2,793
    01-15-2015, 04:45 PM Go to last post
  7. 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: 13,047
    10-20-2014, 07:02 PM Go to last post
    • Replies: 106
    • Views: 9,228
    01-29-2013, 08:00 PM Go to last post
  8. 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: 8,778
    09-28-2013, 03:17 PM Go to last post
  9. Carlyle compressor

    Started by Chris1570, 08-22-2013 09:03 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 97
    • Views: 8,786
    05-11-2014, 04:23 PM Go to last post
  10. Plant operator??

    Started by newtradesman, 10-21-2004 05:59 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 96
    • Views: 8,977
    01-21-2013, 06:50 PM Go to last post
    • Replies: 96
    • Views: 7,712
    02-04-2013, 12:14 PM Go to last post
  11. 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: 94
    • Views: 7,852
    01-20-2015, 10:24 AM Go to last post
  12. 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: 33,014
    08-08-2013, 07:59 PM Go to last post
  13. A Fun Question . . .

    Started by BBeerme, 06-27-2014 11:01 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 90
    • Views: 3,963
    07-04-2014, 02:38 AM Go to last post
  14. 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: 10,588
    06-21-2012, 11:06 PM Go to last post
  15. VRF

    Started by acman17, 05-19-2014 09:20 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 86
    • Views: 7,513
    07-09-2014, 07:20 PM Go to last post
  16. 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: 4,255
    08-30-2014, 12:42 AM Go to last post
  17. R22 replacements

    Started by rhumbard, 09-19-2014 10:46 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 84
    • Views: 3,735
    10-03-2014, 06:56 AM Go to last post
  18. 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: 9,384
    09-17-2011, 11:28 PM Go to last post
  19. 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: 3,338
    09-06-2014, 07:09 PM Go to last post
  20. Flame sensor testing

    Started by btglow2894, 11-15-2014 03:19 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 4,145
    12-16-2014, 11:17 PM Go to last post
  21. 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: 5,804
    10-02-2014, 09:42 PM Go to last post
  22. 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: 8,802
    01-15-2013, 01:13 AM Go to last post
  23. York Heat Exchangers

    Started by coolerik, 11-22-2013 10:35 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 76
    • Views: 4,218
    02-09-2014, 12:25 AM Go to last post
  24. Trane package unit

    Started by caheiman30, 08-15-2012 04:16 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 73
    • Views: 7,201
    08-22-2012, 01:45 AM Go to last post
  25. Nitrogen or No Nitrogen?

    Started by Grayline, 04-18-2013 08:49 AM
    6 Pages
    1 2 3 4 5 6
    • Replies: 73
    • Views: 6,251
    04-25-2013, 10:31 AM Go to last post
  26. 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: 22,290
    08-20-2014, 11:22 PM Go to last post
  27. A hat tip to rooftop guys.

    Started by Glennhvac, 01-02-2015 11:37 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 71
    • Views: 2,524
    01-11-2015, 11:57 PM Go to last post
  28. Johnson Controls

    Started by huckleberryjay, 06-10-2010 11:33 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 10,600
    09-14-2011, 10:03 PM Go to last post
  29. Torching evaps

    Started by leaker2, 10-23-2013 10:23 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 4,106
    11-14-2013, 04:58 PM Go to last post
  30. 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: 3,565
    05-24-2013, 07:37 PM Go to last post
  31. 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: 3,371
    10-02-2014, 08:19 PM Go to last post
  32. Brazing copper to brass

    Started by OBogue, 07-28-2014 06:16 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 66
    • Views: 3,747
    11-02-2014, 05:40 PM Go to last post
  33. 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: 6,010
    12-12-2013, 11:08 PM Go to last post
  34. Frown Maybe bypassing compressor

    Started by anders13, 08-08-2014 03:47 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 65
    • Views: 3,449
    08-16-2014, 01:19 AM Go to last post
  35. Holiday Pay

    Started by BBeerme, 12-20-2014 02:23 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 65
    • Views: 2,521
    Yesterday, 08:09 PM Go to last post
  36. 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: 5,132
    10-15-2014, 11:52 PM Go to last post
  37. True GDM 49F

    Started by tootiredtoargue, 11-30-2014 06:33 PM
    5 Pages
    1 2 3 4 5
    • Replies: 64
    • Views: 2,041
    12-06-2014, 05:00 PM Go to last post
  38. How many Amps max on a 2 pole contactir 30amp FLA

    Started by Carlos_me, 01-13-2015 05:47 PM
    5 Pages
    1 2 3 4 5
    • Replies: 64
    • Views: 1,482
    01-29-2015, 11:01 PM Go to last post
  39. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 01:48 PM
    5 Pages
    1 2 3 4 5
    • Replies: 62
    • Views: 10,554
    07-15-2014, 12:57 PM Go to last post
  40. 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: 6,746
    07-14-2012, 10:33 PM Go to last post
  41. High superheat with NU22B

    Started by Jbart, 07-06-2013 10:02 PM
    5 Pages
    1 2 3 4 5
    • Replies: 61
    • Views: 4,329
    07-21-2013, 05:56 PM Go to last post
    • Replies: 61
    • Views: 4,972
    03-10-2014, 05:16 AM Go to last post
  42. liebert rep

    Started by energy mech, 02-11-2014 04:27 PM
    5 Pages
    1 2 3 4 5
    • Replies: 61
    • Views: 4,985
    03-26-2014, 10:01 PM Go to last post
  43. RTAA125 low on 22 or ...?

    Started by valdelocc, 04-22-2013 09:12 PM
    5 Pages
    1 2 3 4 5
    • Replies: 60
    • Views: 4,471
    10-23-2013, 09:56 AM Go to last post
  44. 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: 2,589
    09-08-2014, 11:15 PM Go to last post
  45. Rooftop Heat Exchanger Failure Causes???

    Started by andrewd33, 12-07-2011 04:52 PM
    5 Pages
    1 2 3 4 5
    • Replies: 58
    • Views: 4,932
    01-21-2012, 04:01 PM Go to last post
  46. Move to union?

    Started by CFESAmasterEGSR, 07-07-2014 11:49 PM
    5 Pages
    1 2 3 4 5
    • Replies: 58
    • Views: 2,708
    07-27-2014, 02:07 AM Go to last post
  47. 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: 2,799
    11-19-2014, 02:10 AM Go to last post

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