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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: 9,082
    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: 152,924
    07-28-2013, 09:10 AM Go to last post
  3. ISCEON® MO99™ refrigerant ( R-438a )

    Started by freonguy, 08-18-2009 05:15 PM
    5 Pages
    1 2 3 4 5
    • Replies: 53
    • Views: 49,537
    09-20-2012, 11:16 AM Go to last post
  4. 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: 42,783
    08-08-2013, 06:59 PM Go to last post
  5. Best Recovery Machines

    Started by softtail, 01-01-2007 02:00 PM
    4 Pages
    1 2 3 4
    • Replies: 46
    • Views: 37,615
    08-02-2012, 07:34 PM Go to last post
  6. r-22 with poe oil

    Started by anthonyac1, 03-12-2012 09:48 PM
    4 Pages
    1 2 3 4
    • Replies: 44
    • Views: 33,423
    06-27-2016, 08:13 PM Go to last post
  7. Anyone doing Family Dollar or Dollar General service?

    Started by MechTech2013, 06-06-2014 02:04 AM
    15 Pages
    1 2 3 4 5 6 ... 15
    • Replies: 186
    • Views: 30,098
    11-19-2015, 12:10 AM Go to last post
  8. How much refrigerant can a recovery tank hold?

    Started by bgrich2003, 07-30-2012 10:28 AM
    • Replies: 11
    • Views: 29,965
    08-01-2012, 08:26 AM Go to last post
  9. 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: 27,968
    08-20-2014, 10:22 PM Go to last post
  10. refrigerant restriction

    Started by johnnyb, 05-03-2014 10:37 AM
    19 Pages
    1 2 3 4 5 6 ... 19
    • Replies: 240
    • Views: 25,084
    08-02-2014, 09:11 PM Go to last post
  11. 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: 22,093
    10-20-2014, 06:02 PM Go to last post
  12. face velocity formula

    Started by oldtimer2, 08-23-2010 04:54 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 21,708
    05-20-2014, 01:39 AM Go to last post
  13. Oil foaming in Compressor sight glass

    Started by elvis66, 08-16-2011 11:57 AM
    3 Pages
    1 2 3
    • Replies: 32
    • Views: 21,511
    12-06-2011, 11:06 PM Go to last post
  14. on call

    Started by northeastbeast, 08-02-2013 07:03 AM
    11 Pages
    1 2 3 4 5 6 ... 11
    • Replies: 134
    • Views: 20,593
    09-15-2013, 10:56 AM Go to last post
  15. High suction pressure low to normal head?

    Started by Gonzo2611, 08-28-2012 10:13 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 18,807
    09-16-2012, 03:00 AM Go to last post
    • Replies: 176
    • Views: 18,020
    07-25-2014, 04:26 PM Go to last post
  16. VRF

    Started by acman17, 05-19-2014 08:20 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 91
    • Views: 17,835
    05-08-2016, 02:32 PM Go to last post
  17. 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: 17,134
    07-14-2015, 09:28 AM Go to last post
  18. 3 phase ac compressor

    Started by biggi, 04-16-2013 08:34 PM
    3 Pages
    1 2 3
    • Replies: 36
    • Views: 16,829
    07-23-2016, 10:33 AM Go to last post
  19. quiet 230V contactor

    Started by SolarMike, 12-10-2011 02:07 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 16,825
    12-13-2011, 09:42 PM Go to last post
  20. Water source heat pump high head pressure

    Started by PolarBearAir, 09-16-2011 09:57 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 16,642
    11-01-2014, 09:13 AM Go to last post
  21. Johnson Controls

    Started by huckleberryjay, 06-10-2010 10:33 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 15,944
    09-14-2011, 09:03 PM Go to last post
  22. Diagnosing Faulty TXV

    Started by dixie2005, 07-20-2005 09:22 PM
    • Replies: 9
    • Views: 15,493
    04-26-2013, 07:42 AM Go to last post
  23. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 01:48 PM
    5 Pages
    1 2 3 4 5
    • Replies: 63
    • Views: 15,480
    04-16-2015, 07:42 AM Go to last post
  24. 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: 15,284
    06-21-2012, 10:06 PM Go to last post
  25. txv brazing techniques

    Started by mizzouhvac, 06-19-2011 08:56 AM
    4 Pages
    1 2 3 4
    • Replies: 51
    • Views: 15,023
    10-28-2015, 09:17 PM Go to last post
  26. Carlyle compressor

    Started by Chris1570, 08-22-2013 08:03 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 97
    • Views: 14,835
    05-11-2014, 03:23 PM Go to last post
  27. Loss of flow alarms on new trane chiller!?!?

    Started by Wes G., 08-23-2012 11:23 PM
    4 Pages
    1 2 3 4
    • Replies: 47
    • Views: 14,814
    10-14-2015, 05:01 PM Go to last post
  28. Flame sensor testing

    Started by btglow2894, 11-15-2014 03:19 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 14,454
    12-16-2014, 11:17 PM Go to last post
  29. Carrier will lay off 2100 peaple

    Started by servicefitter, 02-11-2016 10:18 PM
    21 Pages
    1 2 3 4 5 6 ... 21
    • Replies: 260
    • Views: 14,440
    07-24-2016, 08:11 PM Go to last post
  30. 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: 14,210
    09-17-2011, 10:28 PM Go to last post
  31. 3 phase question

    Started by YatYas, 01-08-2015 07:18 PM
    10 Pages
    1 2 3 4 5 6 ... 10
    • Replies: 117
    • Views: 14,081
    01-15-2015, 04:45 PM Go to last post
  32. 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: 14,015
    04-14-2015, 10:59 AM Go to last post
    • Replies: 106
    • Views: 13,989
    01-29-2013, 08:00 PM Go to last post
  33. 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: 13,899
    01-15-2013, 01:13 AM Go to last post
  34. 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: 13,850
    09-28-2013, 02:17 PM Go to last post
  35. anyone know how trane reliatel system works?

    Started by deon1116, 02-02-2007 01:26 AM
    2 Pages
    1 2
    • Replies: 17
    • Views: 13,662
    04-10-2013, 08:41 PM Go to last post
  36. Work Pants

    Started by Pascone10, 05-31-2014 03:03 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 72
    • Views: 13,555
    09-11-2016, 12:08 PM Go to last post
  37. Typical overtime policies?

    Started by mcairrepair, 07-26-2012 10:06 PM
    5 Pages
    1 2 3 4 5
    • Replies: 54
    • Views: 13,119
    11-13-2012, 09:37 AM Go to last post
  38. Old Modine Make Up Air

    Started by Trevor11, 12-14-2011 12:22 AM
    • Replies: 4
    • Views: 12,816
    12-14-2011, 09:34 PM Go to last post
  39. 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: 12,804
    06-28-2015, 11:28 AM Go to last post
  40. Refrigerant Stop Leak

    Started by gmac100, 03-16-2012 09:19 AM
    3 Pages
    1 2 3
    • Replies: 36
    • Views: 12,699
    05-21-2012, 03:37 PM Go to last post
  41. Daikin VRV

    Started by ChaseW, 05-27-2012 10:05 AM
    4 Pages
    1 2 3 4
    • Replies: 49
    • Views: 12,603
    11-13-2013, 07:35 AM Go to last post
  42. 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: 12,600
    11-30-2014, 03:46 AM Go to last post
    • Replies: 96
    • Views: 12,368
    02-04-2013, 12:14 PM Go to last post
  43. Plant operator??

    Started by newtradesman, 10-21-2004 04:59 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 96
    • Views: 12,345
    01-21-2013, 06:50 PM Go to last post
  44. 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: 11,992
    04-17-2015, 09:28 AM Go to last post
  45. Lennox RTU Problem

    Started by mattster72, 12-15-2011 10:04 AM
    2 Pages
    1 2
    • Replies: 24
    • Views: 11,903
    12-24-2011, 03:28 PM Go to last post
  46. GROUNDED B PHASE

    Started by VTP99, 01-29-2012 03:43 PM
    4 Pages
    1 2 3 4
    • Replies: 47
    • Views: 11,796
    03-25-2012, 07:32 AM Go to last post
  47. Using a megger for hvac/r

    Started by akelesis, 08-12-2012 01:26 PM
    3 Pages
    1 2 3
    • Replies: 31
    • Views: 11,554
    09-05-2012, 07:02 AM Go to last post
  48. Confused King National Air Systems heaters

    Started by hvaccompowner, 08-01-2007 06:02 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 11,232
    09-18-2013, 05:50 AM Go to last post

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