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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: 8,024
    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: 147,866
    07-28-2013, 09:10 AM Go to last post
  3. 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: 38,944
    08-08-2013, 06:59 PM Go to last post
  4. ISCEON® MO99™ refrigerant ( R-438a )

    Started by freonguy, 08-18-2009 05:15 PM
    5 Pages
    1 2 3 4 5
    • Replies: 53
    • Views: 37,868
    09-20-2012, 11:16 AM 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: 32,350
    08-02-2012, 07:34 PM Go to last post
  6. 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: 26,571
    08-20-2014, 10:22 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: 26,378
    08-13-2014, 05:34 PM Go to last post
  8. 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: 23,920
    11-19-2015, 12:10 AM Go to last post
  9. How much refrigerant can a recovery tank hold?

    Started by bgrich2003, 07-30-2012 10:28 AM
    • Replies: 11
    • Views: 21,202
    08-01-2012, 08:26 AM 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: 21,118
    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: 19,366
    10-20-2014, 06:02 PM Go to last post
  12. on call

    Started by northeastbeast, 08-02-2013 07:03 AM
    11 Pages
    1 2 3 4 5 6 ... 11
    • Replies: 134
    • Views: 19,179
    09-15-2013, 10:56 AM Go to last post
  13. face velocity formula

    Started by oldtimer2, 08-23-2010 04:54 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 18,362
    05-20-2014, 01:39 AM Go to last post
  14. Oil foaming in Compressor sight glass

    Started by elvis66, 08-16-2011 11:57 AM
    3 Pages
    1 2 3
    • Replies: 32
    • Views: 17,309
    12-06-2011, 11:06 PM Go to last post
  15. quiet 230V contactor

    Started by SolarMike, 12-10-2011 02:07 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 16,040
    12-13-2011, 09:42 PM Go to last post
  16. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 01:48 PM
    5 Pages
    1 2 3 4 5
    • Replies: 63
    • Views: 14,405
    04-16-2015, 07:42 AM Go to last post
  17. Diagnosing Faulty TXV

    Started by dixie2005, 07-20-2005 09:22 PM
    • Replies: 9
    • Views: 14,362
    04-26-2013, 07:42 AM Go to last post
  18. Johnson Controls

    Started by huckleberryjay, 06-10-2010 10:33 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 14,303
    09-14-2011, 09:03 PM Go to last post
    • Replies: 176
    • Views: 14,288
    07-25-2014, 04:26 PM Go to last post
  19. 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: 14,129
    07-14-2015, 09:28 AM Go to last post
  20. 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: 14,018
    06-21-2012, 10:06 PM Go to last post
  21. Carlyle compressor

    Started by Chris1570, 08-22-2013 08:03 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 97
    • Views: 13,842
    05-11-2014, 03:23 PM Go to last post
  22. High suction pressure low to normal head?

    Started by Gonzo2611, 08-28-2012 10:13 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 13,725
    09-16-2012, 03:00 AM Go to last post
  23. VRF

    Started by acman17, 05-19-2014 08:20 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 86
    • Views: 13,675
    07-09-2014, 06:20 PM Go to last post
  24. txv brazing techniques

    Started by mizzouhvac, 06-19-2011 08:56 AM
    4 Pages
    1 2 3 4
    • Replies: 51
    • Views: 12,911
    10-28-2015, 09:17 PM Go to last post
  25. 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: 12,878
    09-17-2011, 10:28 PM Go to last post
  26. Old Modine Make Up Air

    Started by Trevor11, 12-14-2011 12:22 AM
    • Replies: 4
    • Views: 12,733
    12-14-2011, 09:34 PM Go to last post
    • Replies: 106
    • Views: 12,662
    01-29-2013, 08:00 PM Go to last post
  27. Water source heat pump high head pressure

    Started by PolarBearAir, 09-16-2011 09:57 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 12,631
    11-01-2014, 09:13 AM 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: 12,612
    09-28-2013, 02:17 PM Go to last post
  29. 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: 12,371
    01-15-2013, 01:13 AM Go to last post
  30. Typical overtime policies?

    Started by mcairrepair, 07-26-2012 10:06 PM
    5 Pages
    1 2 3 4 5
    • Replies: 54
    • Views: 12,263
    11-13-2012, 09:37 AM Go to last post
  31. 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: 12,104
    10-14-2015, 05:01 PM Go to last post
  32. anyone know how trane reliatel system works?

    Started by deon1116, 02-02-2007 01:26 AM
    2 Pages
    1 2
    • Replies: 17
    • Views: 11,753
    04-10-2013, 08:41 PM Go to last post
  33. 3 phase ac compressor

    Started by biggi, 04-16-2013 08:34 PM
    3 Pages
    1 2 3
    • Replies: 33
    • Views: 11,641
    04-20-2013, 07:09 AM Go to last post
  34. Plant operator??

    Started by newtradesman, 10-21-2004 04:59 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 96
    • Views: 11,519
    01-21-2013, 06:50 PM Go to last post
  35. Flame sensor testing

    Started by btglow2894, 11-15-2014 03:19 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 11,442
    12-16-2014, 11:17 PM Go to last post
    • Replies: 96
    • Views: 11,302
    02-04-2013, 12:14 PM Go to last post
  36. Daikin VRV

    Started by ChaseW, 05-27-2012 10:05 AM
    4 Pages
    1 2 3 4
    • Replies: 49
    • Views: 11,195
    11-13-2013, 07:35 AM Go to last post
  37. Lennox RTU Problem

    Started by mattster72, 12-15-2011 10:04 AM
    2 Pages
    1 2
    • Replies: 24
    • Views: 11,040
    12-24-2011, 03:28 PM Go to last post
  38. Refrigerant Stop Leak

    Started by gmac100, 03-16-2012 09:19 AM
    3 Pages
    1 2 3
    • Replies: 36
    • Views: 10,990
    05-21-2012, 03:37 PM Go to last post
  39. Trane Voyager 1, 2, & 3

    Started by Scott10, 12-15-2011 04:07 PM
    • Replies: 8
    • Views: 10,797
    12-24-2011, 12:47 AM Go to last post
  40. Confused King National Air Systems heaters

    Started by hvaccompowner, 08-01-2007 06:02 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 10,537
    09-18-2013, 05:50 AM Go to last post
  41. Work Pants

    Started by Pascone10, 05-31-2014 03:03 PM
    5 Pages
    1 2 3 4 5
    • Replies: 57
    • Views: 10,450
    05-31-2015, 11:23 PM Go to last post
  42. Trane package unit

    Started by caheiman30, 08-15-2012 03:16 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 73
    • Views: 10,223
    08-22-2012, 12:45 AM Go to last post
  43. 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: 10,118
    11-30-2014, 03:46 AM Go to last post
  44. 3 phase question

    Started by YatYas, 01-08-2015 07:18 PM
    10 Pages
    1 2 3 4 5 6 ... 10
    • Replies: 117
    • Views: 10,041
    01-15-2015, 04:45 PM Go to last post
  45. GROUNDED B PHASE

    Started by VTP99, 01-29-2012 03:43 PM
    4 Pages
    1 2 3 4
    • Replies: 47
    • Views: 10,029
    03-25-2012, 07:32 AM Go to last post
  46. Using a megger for hvac/r

    Started by akelesis, 08-12-2012 01:26 PM
    3 Pages
    1 2 3
    • Replies: 31
    • Views: 10,024
    09-05-2012, 07:02 AM Go to last post
  47. 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: 10,017
    04-17-2015, 09:28 AM Go to last post
  48. 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: 10,008
    04-14-2015, 10:59 AM Go to last post

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