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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: 6,715
    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: 141,037
    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: 15,225
    08-02-2014, 09:11 PM Go to last post
    • Replies: 176
    • Views: 10,722
    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: 16,299
    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: 7,094
    11-30-2014, 03:46 AM Go to last post
  6. Anyone doing Family Dollar or Dollar General service?

    Started by MechTech2013, 06-06-2014 02:04 AM
    10 Pages
    1 2 3 4 5 6 ... 10
    • Replies: 117
    • Views: 15,119
    08-12-2015, 11:12 AM Go to last post
  7. 3 phase question

    Started by YatYas, 01-08-2015 07:18 PM
    10 Pages
    1 2 3 4 5 6 ... 10
    • Replies: 117
    • Views: 6,480
    01-15-2015, 04:45 PM Go to last post
  8. 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: 16,838
    10-20-2014, 06:02 PM Go to last post
    • Replies: 106
    • Views: 11,466
    01-29-2013, 08:00 PM Go to last post
  9. Diagnosing a Weak Compressor

    Started by BBeerme, 06-08-2014 08:00 PM
    9 Pages
    1 2 3 4 5 6 ... 9
    • Replies: 104
    • Views: 10,727
    07-14-2015, 09:28 AM Go to last post
  10. 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: 11,309
    09-28-2013, 02:17 PM Go to last post
  11. Carlyle compressor

    Started by Chris1570, 08-22-2013 08:03 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 97
    • Views: 11,397
    05-11-2014, 03:23 PM Go to last post
  12. Plant operator??

    Started by newtradesman, 10-21-2004 04:59 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 96
    • Views: 10,447
    01-21-2013, 06:50 PM Go to last post
    • Replies: 96
    • Views: 9,874
    02-04-2013, 12:14 PM Go to last post
  13. 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: 36,679
    08-08-2013, 06:59 PM Go to last post
  14. A Fun Question . . .

    Started by BBeerme, 06-27-2014 10:01 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 90
    • Views: 5,802
    07-04-2014, 01:38 AM Go to last post
  15. Compressor not starting.

    Started by Rick Dreyer, 04-29-2015 01:02 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 90
    • Views: 7,109
    06-28-2015, 11:28 AM Go to last post
  16. 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: 7,591
    04-14-2015, 10:59 AM Go to last post
  17. Help! Uneven amp draw on fan motor.

    Started by DanDaMan370, 08-28-2015 12:29 AM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 89
    • Views: 1,807
    08-30-2015, 06:08 PM Go to last post
  18. 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: 12,482
    06-21-2012, 10:06 PM Go to last post
  19. VRF

    Started by acman17, 05-19-2014 08:20 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 86
    • Views: 10,578
    07-09-2014, 06:20 PM Go to last post
  20. 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: 6,106
    08-29-2014, 11:42 PM Go to last post
  21. R22 replacements

    Started by rhumbard, 09-19-2014 09:46 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 84
    • Views: 6,373
    10-03-2014, 05:56 AM Go to last post
  22. Evacuation process?

    Started by Junior1983, 06-26-2015 08:47 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 81
    • Views: 3,371
    07-08-2015, 12:26 AM Go to last post
  23. 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: 11,268
    09-17-2011, 10:28 PM Go to last post
  24. 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: 5,621
    09-06-2014, 06:09 PM Go to last post
  25. Flame sensor testing

    Started by btglow2894, 11-15-2014 03:19 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 7,998
    12-16-2014, 11:17 PM Go to last post
  26. 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: 7,811
    04-17-2015, 09:28 AM Go to last post
  27. 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: 10,871
    01-15-2013, 01:13 AM Go to last post
  28. York Heat Exchangers

    Started by coolerik, 11-22-2013 10:35 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 76
    • Views: 6,046
    02-09-2014, 12:25 AM Go to last post
  29. Trane package unit

    Started by caheiman30, 08-15-2012 03:16 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 73
    • Views: 8,989
    08-22-2012, 12:45 AM Go to last post
  30. Nitrogen or No Nitrogen?

    Started by Grayline, 04-18-2013 07:49 AM
    6 Pages
    1 2 3 4 5 6
    • Replies: 73
    • Views: 7,950
    04-25-2013, 09:31 AM Go to last post
  31. 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: 24,749
    08-20-2014, 10:22 PM Go to last post
  32. 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: 5,637
    01-11-2015, 11:57 PM Go to last post
  33. 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: 4,511
    02-12-2015, 07:36 PM Go to last post
  34. Johnson Controls

    Started by huckleberryjay, 06-10-2010 10:33 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 12,616
    09-14-2011, 09:03 PM Go to last post
  35. Torching evaps

    Started by leaker2, 10-23-2013 09:23 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 5,576
    11-14-2013, 04:58 PM Go to last post
  36. 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: 5,065
    05-24-2013, 06:37 PM Go to last post
  37. 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: 5,018
    10-02-2014, 07:19 PM Go to last post
  38. 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: 7,257
    12-12-2013, 11:08 PM Go to last post
  39. Frown Maybe bypassing compressor

    Started by anders13, 08-08-2014 02:47 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 65
    • Views: 4,762
    08-16-2014, 12:19 AM Go to last post
  40. Holiday Pay

    Started by BBeerme, 12-20-2014 02:23 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 65
    • Views: 5,494
    01-31-2015, 08:09 PM Go to last post
  41. 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: 7,213
    10-15-2014, 10:52 PM Go to last post
  42. True GDM 49F

    Started by tootiredtoargue, 11-30-2014 06:33 PM
    5 Pages
    1 2 3 4 5
    • Replies: 64
    • Views: 4,160
    12-06-2014, 05:00 PM Go to last post
  43. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 01:48 PM
    5 Pages
    1 2 3 4 5
    • Replies: 63
    • Views: 13,194
    04-16-2015, 07:42 AM Go to last post
  44. 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: 8,320
    07-14-2012, 09:33 PM Go to last post
  45. High superheat with NU22B

    Started by Jbart, 07-06-2013 09:02 PM
    5 Pages
    1 2 3 4 5
    • Replies: 61
    • Views: 5,680
    07-21-2013, 04:56 PM Go to last post
    • Replies: 61
    • Views: 6,781
    03-10-2014, 04:16 AM Go to last post
  46. liebert rep

    Started by energy mech, 02-11-2014 04:27 PM
    5 Pages
    1 2 3 4 5
    • Replies: 61
    • Views: 7,187
    03-26-2014, 09:01 PM Go to last post
  47. RTAA125 low on 22 or ...?

    Started by valdelocc, 04-22-2013 08:12 PM
    5 Pages
    1 2 3 4 5
    • Replies: 60
    • Views: 5,993
    10-23-2013, 08:56 AM Go to last post

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