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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: NO AOP posts here please. ONLY Tech to Tech chatter

    Started by Dad, 08-10-2011 04:34 PM
    • Replies: 0
    • Views: 3,907
    08-10-2011, 04:34 PM Go to last post
  1. cooling a small server room

    Started by serverroomcooling, 11-16-2004 11:04 AM
    99 Pages
    1 2 3 4 5 6 ... 99
    • Replies: 1,275
    • Views: 114,647
    07-28-2013, 09:10 AM Go to last post
  2. 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: 30,671
    08-08-2013, 06:59 PM 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: 23,673
    09-20-2012, 11:16 AM Go to last post
  4. Best Recovery Machines

    Started by softtail, 01-01-2007 01:00 PM
    4 Pages
    1 2 3 4
    • Replies: 46
    • Views: 20,586
    08-02-2012, 07:34 PM Go to last post
  5. Dolphin chemical free water treatment

    Started by colorado dave, 02-22-2005 06:38 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 71
    • Views: 19,798
    08-20-2014, 10:22 PM Go to last post
  6. quiet 230V contactor

    Started by SolarMike, 12-10-2011 01:07 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 14,220
    12-13-2011, 08:42 PM Go to last post
  7. r-22 with poe oil

    Started by anthonyac1, 03-12-2012 09:48 PM
    4 Pages
    1 2 3 4
    • Replies: 40
    • Views: 13,275
    08-13-2014, 05:34 PM Go to last post
  8. Old Modine Make Up Air

    Started by Trevor11, 12-13-2011 11:22 PM
    • Replies: 4
    • Views: 12,352
    12-14-2011, 08:34 PM Go to last post
  9. face velocity formula

    Started by oldtimer2, 08-23-2010 04:54 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 11,667
    05-20-2014, 01:39 AM Go to last post
  10. Diagnosing Faulty TXV

    Started by dixie2005, 07-20-2005 09:22 PM
    • Replies: 9
    • Views: 11,572
    04-26-2013, 07:42 AM Go to last post
  11. on call

    Started by northeastbeast, 08-02-2013 07:03 AM
    11 Pages
    1 2 3 4 5 6 ... 11
    • Replies: 134
    • Views: 11,157
    09-15-2013, 10:56 AM Go to last post
  12. CO2 Purge for brazing?

    Started by dprimrose, 08-18-2009 10:19 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 95
    • Views: 10,222
    05-15-2012, 07:08 PM 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: 10,003
    12-06-2011, 10:06 PM Go to last post
  14. Trane Voyager 1, 2, & 3

    Started by Scott10, 12-15-2011 03:07 PM
    • Replies: 8
    • Views: 9,980
    12-23-2011, 11:47 PM 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: 9,587
    06-21-2012, 10:06 PM Go to last post
  16. Johnson Controls

    Started by huckleberryjay, 06-10-2010 10:33 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 9,345
    09-14-2011, 09:03 PM Go to last post
  17. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 12:48 PM
    5 Pages
    1 2 3 4 5
    • Replies: 62
    • Views: 9,236
    07-15-2014, 11:57 AM Go to last post
  18. Typical overtime policies?

    Started by mcairrepair, 07-26-2012 10:06 PM
    5 Pages
    1 2 3 4 5
    • Replies: 54
    • Views: 8,656
    11-13-2012, 08:37 AM Go to last post
  19. Confused King National Air Systems heaters

    Started by hvaccompowner, 08-01-2007 06:02 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 8,439
    09-18-2013, 05:50 AM Go to last post
  20. How much refrigerant can a recovery tank hold?

    Started by bgrich2003, 07-30-2012 10:28 AM
    • Replies: 11
    • Views: 8,414
    08-01-2012, 08:26 AM Go to last post
  21. Lennox RTU Problem

    Started by mattster72, 12-15-2011 09:04 AM
    2 Pages
    1 2
    • Replies: 24
    • Views: 8,400
    12-24-2011, 02:28 PM Go to last post
  22. Bitzer screw compressor

    Started by moideen, 05-20-2009 02:37 PM
    • Replies: 12
    • Views: 8,078
    09-22-2012, 01:32 PM Go to last post
  23. Thumbs up 460V 1PH condenser fan motor ????

    Started by AcDOCnTRAINING, 02-07-2008 05:15 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 8,049
    09-17-2011, 10:28 PM Go to last post
  24. anyone know how trane reliatel system works?

    Started by deon1116, 02-02-2007 12:26 AM
    2 Pages
    1 2
    • Replies: 17
    • Views: 7,833
    04-10-2013, 08:41 PM Go to last post
    • Replies: 106
    • Views: 7,782
    01-29-2013, 07:00 PM Go to last post
  25. Plant operator??

    Started by newtradesman, 10-21-2004 04:59 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 96
    • Views: 7,743
    01-21-2013, 05:50 PM Go to last post
  26. Question oil pressure problem

    Started by welling service, 11-17-2012 02:57 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 76
    • Views: 7,652
    01-15-2013, 12:13 AM Go to last post
  27. YCD Powerburner Issues

    Started by vin lashon, 12-09-2011 08:02 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 7,630
    04-08-2012, 07:14 PM Go to last post
  28. 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: 7,461
    09-28-2013, 02:17 PM Go to last post
  29. Carlyle compressor

    Started by Chris1570, 08-22-2013 08:03 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 97
    • Views: 7,178
    05-11-2014, 03:23 PM Go to last post
  30. Refrigerant Stop Leak

    Started by gmac100, 03-16-2012 09:19 AM
    3 Pages
    1 2 3
    • Replies: 36
    • Views: 7,177
    05-21-2012, 03:37 PM Go to last post
  31. Pleats Vs. Poly Rolls

    Started by MicahWes, 12-08-2011 11:23 PM
    • Replies: 9
    • Views: 7,095
    12-15-2011, 09:19 AM Go to last post
  32. High suction pressure low to normal head?

    Started by Gonzo2611, 08-28-2012 10:13 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 7,086
    09-16-2012, 03:00 AM Go to last post
  33. 30 ton split R-22 to 410a

    Started by allstar08, 07-08-2011 07:41 PM
    4 Pages
    1 2 3 4
    • Replies: 51
    • Views: 6,840
    09-05-2012, 07:46 AM Go to last post
  34. Using a megger for hvac/r

    Started by akelesis, 08-12-2012 01:26 PM
    3 Pages
    1 2 3
    • Replies: 31
    • Views: 6,724
    09-05-2012, 07:02 AM Go to last post
  35. txv brazing techniques

    Started by mizzouhvac, 06-19-2011 08:56 AM
    3 Pages
    1 2 3
    • Replies: 33
    • Views: 6,661
    08-24-2011, 11:37 PM Go to last post
  36. COMPRESSOR LIFT

    Started by low pressure guy, 07-19-2009 09:08 AM
    4 Pages
    1 2 3 4
    • Replies: 44
    • Views: 6,513
    05-03-2014, 11:49 AM Go to last post
    • Replies: 96
    • Views: 6,506
    02-04-2013, 11:14 AM Go to last post
  37. Buensod vav box..

    Started by Air_Head73, 07-06-2007 02:58 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 6,497
    12-21-2011, 01:31 PM Go to last post
  38. Daikin VRV

    Started by ChaseW, 05-27-2012 10:05 AM
    4 Pages
    1 2 3 4
    • Replies: 49
    • Views: 6,309
    11-13-2013, 06:35 AM Go to last post
  39. 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: 45
    • Views: 6,276
    09-20-2012, 11:15 PM Go to last post
  40. Trane package unit

    Started by caheiman30, 08-15-2012 03:16 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 73
    • Views: 6,124
    08-22-2012, 12:45 AM Go to last post
  41. GROUNDED B PHASE

    Started by VTP99, 01-29-2012 02:43 PM
    4 Pages
    1 2 3 4
    • Replies: 47
    • Views: 6,100
    03-25-2012, 07:32 AM Go to last post
  42. Trane Voyager combustion motors

    Started by chillrdude, 10-31-2008 08:25 AM
    4 Pages
    1 2 3 4
    • Replies: 41
    • Views: 5,968
    01-25-2012, 10:35 PM Go to last post
  43. Trane voyager service Manual

    Started by epacertified, 12-12-2009 02:29 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 5,964
    01-07-2013, 10:02 AM Go to last post
  44. refrigerant restriction

    Started by johnnyb, 05-03-2014 10:37 AM
    19 Pages
    1 2 3 4 5 6 ... 19
    • Replies: 240
    • Views: 5,936
    08-02-2014, 09:11 PM Go to last post
  45. 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: 5,849
    07-14-2012, 09:33 PM Go to last post
  46. VRF

    Started by acman17, 05-19-2014 08:20 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 86
    • Views: 5,823
    07-09-2014, 06:20 PM Go to last post
  47. Chiller surging - need your expertise

    Started by Sancho Pancho, 07-28-2009 06:46 PM
    2 Pages
    1 2
    19xr, carrier chiller, chiller, chiller trouble, surge, surging
    • Replies: 23
    • Views: 5,779
    08-19-2011, 05:01 PM Go to last post
  48. txv with no expasion

    Started by dectradison, 10-05-2011 12:26 AM
    3 Pages
    1 2 3
    • Replies: 32
    • Views: 5,724
    02-06-2012, 09:10 PM Go to last post

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