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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: 2,669
    Dad
    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: 1,274
    • Views: 93,648
    john dalton
    02-14-2013, 02:10 PM Go to last post

  2. Cool FengsHVAC a Professional HVAC Tech teach you how to fix the heat on Bryant Pkg Unit

    Started by fengshvac, 01-15-2013 08:25 PM
    9 Pages •
    1 2 3 4 5 6 ... 9
    4 Attachment(s)
    • Replies: 106
    • Views: 4,757
    alcomech
    01-29-2013, 07:00 PM Go to last post

  3. Plant operator??

    Started by newtradesman, 10-21-2004 04:59 PM
    8 Pages •
    1 2 3 4 5 6 ... 8
    • Replies: 96
    • Views: 5,476
    jpsmith1cm
    01-21-2013, 05:50 PM Go to last post

  4. Cool FengsHVAC a Professional HVAC Tech teach you how to fix Ice Cream Unit from Turkey

    Started by fengshvac, 01-30-2013 09:24 PM
    8 Pages •
    1 2 3 4 5 6 ... 8
    7 Attachment(s)
    • Replies: 96
    • Views: 4,067
    chaard
    02-04-2013, 11:14 AM Go to last post

  5. 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: 7,172
    waterworld
    05-15-2012, 07:08 PM Go to last post

  6. 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: 91
    • Views: 3,122
    dlove
    Today, 12:57 PM Go to last post

  7. EXV problems on Carrier 30GT Chiller

    Started by hvac-alan, 09-02-2005 07:23 PM
    7 Pages •
    1 2 3 4 5 6 ... 7
    1 Attachment(s)
    • Replies: 88
    • Views: 23,547
    Ausccn
    09-10-2011, 05:54 AM Go to last post

  8. Brazing with refrigerant in pipe

    Started by HuNGRYTeCH, 05-22-2012 03:15 PM
    7 Pages •
    1 2 3 4 5 6 ... 7
    1 Attachment(s)
    • Replies: 86
    • Views: 6,824
    HuNGRYTeCH
    06-21-2012, 10:06 PM Go to last post

  9. 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: 5,642
    allan38
    09-17-2011, 10:28 PM Go to last post

  10. Water mist help cooling my AC condenser unit

    Started by RickCyin, 09-05-2010 05:44 PM
    7 Pages •
    1 2 3 4 5 6 ... 7
    4 Attachment(s)
    • Replies: 79
    • Views: 6,727
    Random1634
    05-07-2013, 12:51 AM Go to last post

  11. Question oil pressure problem

    Started by welling service, 11-17-2012 02:57 PM
    6 Pages •
    1 2 3 4 5 6
    1 Attachment(s)
    • Replies: 76
    • Views: 4,766
    sweater
    01-15-2013, 12:13 AM Go to last post

  12. Trane package unit

    Started by caheiman30, 08-15-2012 03:16 PM
    6 Pages •
    1 2 3 4 5 6
    2 Attachment(s)
    • Replies: 73
    • Views: 3,247
    ericc54321
    08-22-2012, 12:45 AM Go to last post

  13. Nitrogen or No Nitrogen?

    Started by Grayline, 04-18-2013 07:49 AM
    6 Pages •
    1 2 3 4 5 6
    2 Attachment(s)
    • Replies: 73
    • Views: 2,823
    ga-hvac-tech
    04-25-2013, 09:31 AM Go to last post

  14. Johnson Controls

    Started by huckleberryjay, 06-10-2010 10:33 PM
    6 Pages •
    1 2 3 4 5 6
    • Replies: 70
    • Views: 6,955
    largetonnage
    09-14-2011, 09:03 PM Go to last post

  15. compressor black over current box tripping

    Started by raven22, 05-17-2013 07:51 PM
    6 Pages •
    1 2 3 4 5 6
    11 Attachment(s)
    • Replies: 68
    • Views: 928
    Elfshadow
    Today, 05:16 AM Go to last post

  16. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 12:48 PM
    5 Pages •
    1 2 3 4 5
    12 Attachment(s)
    • Replies: 61
    • Views: 6,527
    Back2It
    08-21-2012, 02:32 PM Go to last post

  17. RTU's not cooling the building enough

    Started by abcando, 07-06-2012 12:41 AM
    5 Pages •
    1 2 3 4 5
    3 Attachment(s)
    • Replies: 61
    • Views: 3,859
    gwoner
    07-14-2012, 09:33 PM Go to last post

  18. RTAA125 low on 22 or ...?

    Started by valdelocc, 04-22-2013 08:12 PM
    5 Pages •
    1 2 3 4 5
    • Replies: 59
    • Views: 1,621
    valdelocc
    05-20-2013, 05:38 PM Go to last post

  19. Rooftop Heat Exchanger Failure Causes???

    Started by andrewd33, 12-07-2011 03:52 PM
    5 Pages •
    1 2 3 4 5
    3 Attachment(s)
    • Replies: 58
    • Views: 3,152
    Beacon Tech
    01-21-2012, 03:01 PM Go to last post

  20. Typical overtime policies?

    Started by mcairrepair, 07-26-2012 10:06 PM
    5 Pages •
    1 2 3 4 5
    • Replies: 54
    • Views: 6,314
    jasonmech
    11-13-2012, 08:37 AM Go to last post

  21. ISCEON® MO99™ refrigerant ( R-438a )

    Started by freonguy, 08-18-2009 05:15 PM
    5 Pages •
    1 2 3 4 5
    mo99, r22 2 Attachment(s)
    • Replies: 53
    • Views: 10,329
    Pete954
    09-20-2012, 11:16 AM Go to last post

  22. First day of a new career

    Started by colortwang, 02-03-2012 10:37 PM
    5 Pages •
    1 2 3 4 5
    1 Attachment(s)
    • Replies: 52
    • Views: 2,006
    colortwang
    02-07-2012, 12:45 AM Go to last post

  23. Question Carrier RTU second stage freezing up

    Started by qwerty hvac, 05-12-2012 09:15 AM
    5 Pages •
    1 2 3 4 5
    5 Attachment(s)
    • Replies: 52
    • Views: 2,880
    qwerty hvac
    05-18-2012, 07:24 PM Go to last post

  24. Ground short ?

    Started by AddMore22, 06-07-2012 09:20 PM
    5 Pages •
    1 2 3 4 5
    1 Attachment(s)
    • Replies: 52
    • Views: 1,937
    timebuilder
    06-10-2012, 04:31 PM Go to last post

  25. 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: 4,854
    dunkman
    09-05-2012, 07:46 AM Go to last post

  26. Trane Voyager rooftop poopie

    Started by WorkHardThenDie, 06-21-2012 02:41 PM
    4 Pages •
    1 2 3 4
    1 Attachment(s)
    • Replies: 50
    • Views: 2,927
    Dallas Duster
    07-05-2012, 04:59 PM Go to last post

  27. Exclamation Military A/C Need help

    Started by puddlestomper, 10-19-2006 01:33 AM
    4 Pages •
    1 2 3 4
    • Replies: 49
    • Views: 4,008
    timebuilder
    09-21-2012, 12:28 PM Go to last post

  28. GROUNDED B PHASE

    Started by VTP99, 01-29-2012 02:43 PM
    4 Pages •
    1 2 3 4
    • Replies: 47
    • Views: 3,724
    stanbyyourword
    03-25-2012, 07:32 AM Go to last post

  29. What does everyone thing about Economizers?

    Started by hcong, 06-11-2012 05:52 AM
    4 Pages •
    1 2 3 4
    • Replies: 47
    • Views: 2,931
    ICanHas
    07-03-2012, 07:08 AM Go to last post

  30. Confused York RTU Nightmare

    Started by qwerty hvac, 10-30-2012 07:44 PM
    4 Pages •
    1 2 3 4
    5 Attachment(s)
    • Replies: 47
    • Views: 2,713
    tim79
    11-04-2012, 01:36 PM Go to last post

  31. Best Recovery Machines

    Started by softtail, 01-01-2007 01:00 PM
    4 Pages •
    1 2 3 4
    • Replies: 46
    • Views: 12,190
    supertek65
    08-02-2012, 07:34 PM Go to last post

  32. UA Star Preparation?

    Started by alliedtech12887, 01-26-2012 06:50 PM
    4 Pages •
    1 2 3 4
    2 Attachment(s)
    • Replies: 46
    • Views: 1,876
    artman934
    02-17-2012, 03:00 PM Go to last post

  33. coil cleaning

    Started by socotech, 04-10-2012 10:58 PM
    4 Pages •
    1 2 3 4
    1 Attachment(s)
    • Replies: 46
    • Views: 2,516
    hvac wiz 79
    05-08-2012, 03:46 PM Go to last post

  34. Internal OL tripping

    Started by tonydykes55, 06-27-2012 11:09 PM
    4 Pages •
    1 2 3 4
    • Replies: 46
    • Views: 2,720
    tonydykes55
    07-14-2012, 10:21 AM Go to last post

  35. 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: 3,396
    R123
    09-20-2012, 11:15 PM Go to last post

  36. Blower Cuts Out In Cooling

    Started by flanders, 05-17-2012 09:31 PM
    4 Pages •
    1 2 3 4
    • Replies: 44
    • Views: 3,445
    Bklyntek
    07-07-2012, 11:49 PM Go to last post

  37. Confused Noob Tech.. noob mistake??!!

    Started by jurtaman, 07-15-2012 02:07 PM
    4 Pages •
    1 2 3 4
    • Replies: 44
    • Views: 2,686
    76olds
    07-25-2012, 05:14 PM Go to last post

  38. Help with a water cooled Liebert

    Started by Isaac3384, 03-18-2013 10:15 PM
    4 Pages •
    1 2 3 4
    1 Attachment(s)
    • Replies: 43
    • Views: 1,523
    dobbin
    03-30-2013, 06:00 AM Go to last post

  39. NEW WINTER COAT

    Started by Some Dude, 11-12-2011 11:51 AM
    4 Pages •
    1 2 3 4
    1 Attachment(s)
    • Replies: 42
    • Views: 1,386
    Some Dude
    11-13-2011, 06:02 PM Go to last post

  40. 1 phase 460v cond. motor?

    Started by jarganda83, 11-15-2012 08:53 PM
    4 Pages •
    1 2 3 4
    • Replies: 42
    • Views: 2,846
    COOLJIM
    12-09-2012, 11:09 PM Go to last post

  41. Trane Voyager combustion motors

    Started by chillrdude, 10-31-2008 08:25 AM
    4 Pages •
    1 2 3 4
    13 Attachment(s)
    • Replies: 41
    • Views: 4,285
    hvac wiz 79
    01-25-2012, 10:35 PM Go to last post

  42. controls test

    Started by skleetly, 02-16-2012 10:35 PM
    4 Pages •
    1 2 3 4
    1 Attachment(s)
    • Replies: 41
    • Views: 2,056
    supertek65
    02-23-2012, 06:50 PM Go to last post

  43. 3 phase scroll rotation

    Started by n-e-w Jerz!, 09-08-2012 08:24 PM
    4 Pages •
    1 2 3 4
    1 Attachment(s)
    • Replies: 41
    • Views: 1,987
    gravity
    09-10-2012, 09:31 PM Go to last post

  44. Trane Voyager

    Started by JTCHVAC, 12-18-2011 12:20 AM
    4 Pages •
    1 2 3 4
    • Replies: 40
    • Views: 2,854
    timebuilder
    04-15-2012, 08:21 PM Go to last post

  45. HELP understanding inductive and capacative loads

    Started by WestcoastApprentice, 07-01-2012 01:54 AM
    4 Pages •
    1 2 3 4
    • Replies: 40
    • Views: 2,144
    hvacker
    07-04-2012, 07:32 PM Go to last post

  46. ICE help, No temperature rise

    Started by breegle1313, 01-21-2013 09:38 PM
    4 Pages •
    1 2 3 4
    • Replies: 39
    • Views: 1,879
    rfhcms
    03-25-2013, 08:34 PM Go to last post

  47. r-22 with poe oil

    Started by anthonyac1, 03-12-2012 09:48 PM
    3 Pages •
    1 2 3
    • Replies: 38
    • Views: 4,454
    koolkahuna
    03-27-2012, 09:05 PM Go to last post

  48. TXV question

    Started by mikeacman, 10-24-2012 07:20 PM
    3 Pages •
    1 2 3
    1 Attachment(s)
    • Replies: 38
    • Views: 1,964
    steve wright
    10-31-2012, 04:47 PM Go to last post

  49. LennoX LGH180.. Tripping High Limits on all 4 Identical Units

    Started by coolerik, 03-12-2012 07:49 PM
    3 Pages •
    1 2 3
    • Replies: 37
    • Views: 1,797
    coolerik
    03-15-2012, 06:36 PM Go to last post

  50. copeland discus oil pressure

    Started by socotech, 07-30-2012 08:27 PM
    3 Pages •
    1 2 3
    • Replies: 37
    • Views: 1,731
    Six
    08-02-2012, 10:18 PM Go to last post
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