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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: 4,163
    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: 116,801
    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: 31,488
    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: 24,946
    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: 21,878
    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: 20,385
    08-20-2014, 10:22 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: 40
    • Views: 14,684
    08-13-2014, 05:34 PM Go to last post
  7. quiet 230V contactor

    Started by SolarMike, 12-10-2011 01:07 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 14,408
    12-13-2011, 08:42 PM Go to last post
  8. Old Modine Make Up Air

    Started by Trevor11, 12-13-2011 11:22 PM
    • Replies: 4
    • Views: 12,387
    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: 12,273
    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: 11,880
    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: 11,871
    09-15-2013, 10:56 AM Go to last post
  12. 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: 11,390
    10-20-2014, 06:02 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: 10,627
    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: 10,046
    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: 9,923
    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: 9,665
    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: 9,596
    07-15-2014, 11:57 AM Go to last post
  18. How much refrigerant can a recovery tank hold?

    Started by bgrich2003, 07-30-2012 10:28 AM
    • Replies: 11
    • Views: 9,425
    08-01-2012, 08:26 AM Go to last post
  19. Typical overtime policies?

    Started by mcairrepair, 07-26-2012 10:06 PM
    5 Pages
    1 2 3 4 5
    • Replies: 54
    • Views: 8,983
    11-13-2012, 08:37 AM Go to last post
  20. Confused King National Air Systems heaters

    Started by hvaccompowner, 08-01-2007 06:02 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 8,657
    09-18-2013, 05:50 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: 8,579
    12-24-2011, 02:28 PM Go to last post
  22. 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: 8,538
    09-17-2011, 10:28 PM Go to last post
    • Replies: 106
    • Views: 8,359
    01-29-2013, 07:00 PM Go to last post
  23. Bitzer screw compressor

    Started by moideen, 05-20-2009 02:37 PM
    • Replies: 12
    • Views: 8,236
    09-22-2012, 01:32 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: 8,153
    04-10-2013, 08:41 PM Go to last post
  25. 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: 8,089
    01-15-2013, 12:13 AM Go to last post
  26. 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: 8,046
    09-28-2013, 02:17 PM Go to last post
  27. Plant operator??

    Started by newtradesman, 10-21-2004 04:59 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 96
    • Views: 8,003
    01-21-2013, 05:50 PM Go to last post
  28. Carlyle compressor

    Started by Chris1570, 08-22-2013 08:03 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 97
    • Views: 7,869
    05-11-2014, 03:23 PM Go to last post
  29. YCD Powerburner Issues

    Started by vin lashon, 12-09-2011 08:02 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 7,679
    04-08-2012, 07:14 PM Go to last post
  30. High suction pressure low to normal head?

    Started by Gonzo2611, 08-28-2012 10:13 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 7,619
    09-16-2012, 03:00 AM Go to last post
  31. Refrigerant Stop Leak

    Started by gmac100, 03-16-2012 09:19 AM
    3 Pages
    1 2 3
    • Replies: 36
    • Views: 7,454
    05-21-2012, 03:37 PM Go to last post
  32. refrigerant restriction

    Started by johnnyb, 05-03-2014 10:37 AM
    19 Pages
    1 2 3 4 5 6 ... 19
    • Replies: 240
    • Views: 7,185
    08-02-2014, 09:11 PM Go to last post
  33. Pleats Vs. Poly Rolls

    Started by MicahWes, 12-08-2011 11:23 PM
    • Replies: 9
    • Views: 7,157
    12-15-2011, 09:19 AM Go to last post
  34. 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: 7,143
    09-05-2012, 07:46 AM Go to last post
  35. Using a megger for hvac/r

    Started by akelesis, 08-12-2012 01:26 PM
    3 Pages
    1 2 3
    • Replies: 31
    • Views: 7,042
    09-05-2012, 07:02 AM Go to last post
    • Replies: 96
    • Views: 6,957
    02-04-2013, 11:14 AM Go to last post
  36. txv brazing techniques

    Started by mizzouhvac, 06-19-2011 08:56 AM
    3 Pages
    1 2 3
    • Replies: 33
    • Views: 6,922
    08-24-2011, 11:37 PM Go to last post
  37. COMPRESSOR LIFT

    Started by low pressure guy, 07-19-2009 09:08 AM
    4 Pages
    1 2 3 4
    • Replies: 44
    • Views: 6,795
    05-03-2014, 11:49 AM Go to last post
  38. Buensod vav box..

    Started by Air_Head73, 07-06-2007 02:58 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 6,792
    12-21-2011, 01:31 PM Go to last post
  39. Daikin VRV

    Started by ChaseW, 05-27-2012 10:05 AM
    4 Pages
    1 2 3 4
    • Replies: 49
    • Views: 6,669
    11-13-2013, 06:35 AM Go to last post
  40. 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: 6,616
    09-20-2012, 11:15 PM Go to last post
  41. Trane package unit

    Started by caheiman30, 08-15-2012 03:16 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 73
    • Views: 6,533
    08-22-2012, 12:45 AM Go to last post
  42. 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: 92
    • Views: 6,472
    09-01-2014, 11:15 PM Go to last post
  43. VRF

    Started by acman17, 05-19-2014 08:20 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 86
    • Views: 6,460
    07-09-2014, 06:20 PM Go to last post
  44. GROUNDED B PHASE

    Started by VTP99, 01-29-2012 02:43 PM
    4 Pages
    1 2 3 4
    • Replies: 47
    • Views: 6,440
    03-25-2012, 07:32 AM Go to last post
  45. Trane Voyager combustion motors

    Started by chillrdude, 10-31-2008 08:25 AM
    4 Pages
    1 2 3 4
    • Replies: 41
    • Views: 6,214
    01-25-2012, 10:35 PM Go to last post
  46. 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: 6,180
    07-14-2012, 09:33 PM Go to last post
  47. Trane voyager service Manual

    Started by epacertified, 12-12-2009 02:29 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 6,157
    01-07-2013, 10:02 AM Go to last post
    • Replies: 176
    • Views: 5,989
    07-25-2014, 04:26 PM Go to last post

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