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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

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

    Started by Dad, 08-10-2011 04:34 PM
    • Replies: 0
    • Views: 5,487
    08-10-2011, 04:34 PM Go to last post
  1. Normal Thread Normal Threads

  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: 132,144
    07-28-2013, 09:10 AM Go to last post
  3. refrigerant restriction

    Started by johnnyb, 05-03-2014 10:37 AM
    19 Pages
    1 2 3 4 5 6 ... 19
    • Replies: 240
    • Views: 11,141
    08-02-2014, 09:11 PM Go to last post
    • Replies: 176
    • Views: 8,102
    07-25-2014, 04:26 PM Go to last post
  4. on call

    Started by northeastbeast, 08-02-2013 07:03 AM
    11 Pages
    1 2 3 4 5 6 ... 11
    • Replies: 134
    • Views: 13,884
    09-15-2013, 10:56 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: 5,033
    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: 4,364
    01-15-2015, 04:45 PM Go to last post
  7. CO2 Purge for brazing?

    Started by dprimrose, 08-18-2009 10:19 PM
    9 Pages
    1 2 3 4 5 6 ... 9
    • Replies: 109
    • Views: 14,239
    10-20-2014, 06:02 PM Go to last post
    • Replies: 106
    • Views: 9,807
    01-29-2013, 08:00 PM Go to last post
  8. Confused Commercial technician, thinking about switching to residential.

    Started by comoutsid322, 04-22-2013 11:43 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 101
    • Views: 9,378
    09-28-2013, 02:17 PM Go to last post
  9. Carlyle compressor

    Started by Chris1570, 08-22-2013 08:03 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 97
    • Views: 9,456
    05-11-2014, 03:23 PM Go to last post
  10. Plant operator??

    Started by newtradesman, 10-21-2004 04:59 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 96
    • Views: 9,416
    01-21-2013, 06:50 PM Go to last post
    • Replies: 96
    • Views: 8,292
    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 02:04 AM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 94
    • Views: 9,240
    01-20-2015, 10:24 AM Go to last post
  12. EXV problems on Carrier 30GT Chiller

    Started by hvac-alan, 09-02-2005 07:23 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 91
    • Views: 34,159
    08-08-2013, 06:59 PM Go to last post
  13. A Fun Question . . .

    Started by BBeerme, 06-27-2014 10:01 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 90
    • Views: 4,484
    07-04-2014, 01:38 AM Go to last post
  14. So, would you fire me?

    Started by Turnertech41, 03-10-2015 05:23 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 89
    • Views: 5,788
    04-14-2015, 10:59 AM Go to last post
  15. Brazing with refrigerant in pipe

    Started by HuNGRYTeCH, 05-22-2012 03:15 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 86
    • Views: 11,237
    06-21-2012, 10:06 PM Go to last post
  16. VRF

    Started by acman17, 05-19-2014 08:20 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 86
    • Views: 8,410
    07-09-2014, 06:20 PM Go to last post
  17. Trane compressor not coming on

    Started by bwd111, 08-15-2014 02:51 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 84
    • Views: 4,798
    08-29-2014, 11:42 PM Go to last post
  18. R22 replacements

    Started by rhumbard, 09-19-2014 09:46 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 84
    • Views: 4,490
    10-03-2014, 05:56 AM Go to last post
  19. 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: 9,962
    09-17-2011, 10:28 PM Go to last post
  20. HIGH SUCTION PRESSURE / LOW HEAD PRESSURE ISSUE

    Started by EdHvacr, 09-02-2014 06:04 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 3,975
    09-06-2014, 06:09 PM Go to last post
  21. Flame sensor testing

    Started by btglow2894, 11-15-2014 03:19 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 5,700
    12-16-2014, 11:17 PM Go to last post
  22. Diagnosing a Weak Compressor

    Started by BBeerme, 06-08-2014 08:00 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 79
    • Views: 6,741
    10-02-2014, 08:42 PM Go to last post
  23. Brazing copper to brass

    Started by OBogue, 07-28-2014 05:16 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 79
    • Views: 5,216
    04-17-2015, 09:28 AM Go to last post
  24. 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: 9,429
    01-15-2013, 01:13 AM Go to last post
  25. York Heat Exchangers

    Started by coolerik, 11-22-2013 10:35 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 76
    • Views: 4,754
    02-09-2014, 12:25 AM Go to last post
  26. Trane package unit

    Started by caheiman30, 08-15-2012 03:16 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 73
    • Views: 7,771
    08-22-2012, 12:45 AM Go to last post
  27. Nitrogen or No Nitrogen?

    Started by Grayline, 04-18-2013 07:49 AM
    6 Pages
    1 2 3 4 5 6
    • Replies: 73
    • Views: 6,757
    04-25-2013, 09:31 AM Go to last post
  28. 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: 23,185
    08-20-2014, 10:22 PM Go to last post
  29. 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: 3,832
    01-11-2015, 11:57 PM Go to last post
  30. How many Amps max on a 2 pole contactir 30amp FLA

    Started by Carlos_me, 01-13-2015 05:47 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 71
    • Views: 3,115
    02-12-2015, 07:36 PM Go to last post
  31. Johnson Controls

    Started by huckleberryjay, 06-10-2010 10:33 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 11,190
    09-14-2011, 09:03 PM Go to last post
  32. Torching evaps

    Started by leaker2, 10-23-2013 09:23 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 4,487
    11-14-2013, 04:58 PM Go to last post
  33. compressor black over current box tripping

    Started by raven22, 05-17-2013 07:51 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 69
    • Views: 3,930
    05-24-2013, 06:37 PM Go to last post
  34. No one ever replaces sheeves

    Started by marter, 09-13-2014 09:37 AM
    6 Pages
    1 2 3 4 5 6
    • Replies: 69
    • Views: 3,805
    10-02-2014, 07:19 PM Go to last post
  35. Hours to Pm a rooftop.

    Started by mikepinnacle, 08-14-2013 01:22 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 65
    • Views: 6,372
    12-12-2013, 11:08 PM Go to last post
  36. Frown Maybe bypassing compressor

    Started by anders13, 08-08-2014 02:47 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 65
    • Views: 3,826
    08-16-2014, 12:19 AM Go to last post
  37. Holiday Pay

    Started by BBeerme, 12-20-2014 02:23 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 65
    • Views: 3,783
    01-31-2015, 08:09 PM Go to last post
  38. This is why Preventive Maintenance is a waste of money.

    Started by Mike19, 08-21-2014 12:16 AM
    5 Pages
    1 2 3 4 5
    • Replies: 64
    • Views: 5,792
    10-15-2014, 10:52 PM Go to last post
  39. True GDM 49F

    Started by tootiredtoargue, 11-30-2014 06:33 PM
    5 Pages
    1 2 3 4 5
    • Replies: 64
    • Views: 2,731
    12-06-2014, 05:00 PM Go to last post
  40. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 01:48 PM
    5 Pages
    1 2 3 4 5
    • Replies: 63
    • Views: 11,417
    04-16-2015, 07:42 AM Go to last post
  41. RTU's not cooling the building enough

    Started by abcando, 07-06-2012 12:41 AM
    5 Pages
    1 2 3 4 5
    • Replies: 61
    • Views: 7,217
    07-14-2012, 09:33 PM Go to last post
  42. High superheat with NU22B

    Started by Jbart, 07-06-2013 09:02 PM
    5 Pages
    1 2 3 4 5
    • Replies: 61
    • Views: 4,717
    07-21-2013, 04:56 PM Go to last post
    • Replies: 61
    • Views: 5,532
    03-10-2014, 04:16 AM Go to last post
  43. liebert rep

    Started by energy mech, 02-11-2014 04:27 PM
    5 Pages
    1 2 3 4 5
    • Replies: 61
    • Views: 5,598
    03-26-2014, 09:01 PM Go to last post
  44. RTAA125 low on 22 or ...?

    Started by valdelocc, 04-22-2013 08:12 PM
    5 Pages
    1 2 3 4 5
    • Replies: 60
    • Views: 4,839
    10-23-2013, 08:56 AM Go to last post
  45. Roof Top AC unit not cooling

    Started by Matthonda98, 09-02-2014 01:30 PM
    5 Pages
    1 2 3 4 5
    • Replies: 60
    • Views: 2,987
    09-08-2014, 10:15 PM Go to last post
  46. Rooftop Heat Exchanger Failure Causes???

    Started by andrewd33, 12-07-2011 04:52 PM
    5 Pages
    1 2 3 4 5
    • Replies: 58
    • Views: 5,211
    01-21-2012, 04:01 PM Go to last post
  47. Move to union?

    Started by CFESAmasterEGSR, 07-07-2014 10:49 PM
    5 Pages
    1 2 3 4 5
    • Replies: 58
    • Views: 3,055
    07-27-2014, 01:07 AM Go to last post

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