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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: 8,953
    08-10-2011, 04:34 PM Go to last post
  1. Normal Thread Normal Threads

    • Replies: 18
    • Views: 2,603
    03-23-2015, 05:01 PM Go to last post
  2. Very old airtemp system

    Started by eliteair, 03-19-2015 01:08 PM
    • Replies: 4
    • Views: 780
    03-23-2015, 04:28 PM Go to last post
  3. Liebert System4

    Started by narkom, 03-20-2015 02:52 PM
    • Replies: 7
    • Views: 1,483
    03-23-2015, 02:44 AM Go to last post
  4. EEPR Valve for discharge temp control

    Started by MarcosHVAC, 03-20-2015 10:06 PM
    • Replies: 3
    • Views: 772
    03-22-2015, 10:41 PM Go to last post
  5. Hussman 3 door freezer

    Started by tootiredtoargue, 03-10-2015 05:04 PM
    • Replies: 10
    • Views: 1,750
    03-22-2015, 07:10 PM Go to last post
  6. Favorite VFD

    Started by ACFIXR, 04-18-2012 12:34 AM
    4 Pages
    1 2 3 4
    • Replies: 49
    • Views: 9,323
    03-20-2015, 06:56 PM Go to last post
  7. TCONT802

    Started by jeremyr325, 03-19-2015 08:50 AM
    • Replies: 4
    • Views: 742
    03-20-2015, 10:12 AM Go to last post
    • Replies: 4
    • Views: 738
    03-19-2015, 07:39 AM Go to last post
  8. Belimo to controller change output

    Started by mccann, 02-27-2015 08:46 AM
    • Replies: 8
    • Views: 1,914
    03-19-2015, 02:36 AM Go to last post
  9. 5h126

    Started by Aircon1985, 03-18-2015 07:40 AM
    • Replies: 9
    • Views: 1,201
    03-18-2015, 11:29 PM Go to last post
  10. Txv aux side connector

    Started by targetman, 03-18-2015 08:08 PM
    • Replies: 4
    • Views: 802
    03-18-2015, 09:40 PM Go to last post
  11. freeze stat

    Started by targetman, 03-18-2015 07:13 PM
    • Replies: 0
    • Views: 612
    03-18-2015, 07:13 PM Go to last post
    • Replies: 31
    • Views: 4,574
    03-18-2015, 07:12 PM Go to last post
    • Replies: 8
    • Views: 1,039
    03-18-2015, 05:40 PM Go to last post
  12. Lennox 51M42 Tstat not cycling poperly.

    Started by 3rdlaw, 03-17-2015 10:29 PM
    • Replies: 1
    • Views: 475
    03-17-2015, 10:42 PM Go to last post
  13. Using a circuit breaker finder to find 208 breaker

    Started by travbus, 03-12-2015 11:14 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 2,998
    03-17-2015, 09:52 PM Go to last post
    • Replies: 2
    • Views: 601
    03-16-2015, 08:15 PM Go to last post
  14. Hmm by emerson-check & charge app-- in op now?????

    Started by doug1111, 03-14-2015 11:13 PM
    • Replies: 2
    • Views: 1,417
    03-15-2015, 11:01 PM Go to last post
  15. Drilling gas orifices

    Started by sgagne199, 03-06-2015 06:15 PM
    3 Pages
    1 2 3
    • Replies: 26
    • Views: 4,781
    03-15-2015, 10:53 PM Go to last post
  16. Static Pressure

    Started by mjm88, 03-04-2015 10:08 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 2,724
    03-14-2015, 11:12 AM Go to last post
  17. Trane economizers

    Started by jstoyas5772, 04-28-2014 10:43 PM
    • Replies: 6
    • Views: 3,434
    03-13-2015, 12:45 PM Go to last post
  18. Trane VAV stumper

    Started by gravity, 03-12-2015 08:43 PM
    • Replies: 0
    • Views: 669
    03-12-2015, 08:43 PM Go to last post
    • Replies: 1
    • Views: 1,182
    03-11-2015, 10:34 PM Go to last post
    • Replies: 10
    • Views: 3,466
    03-11-2015, 07:50 PM Go to last post
  19. What does it take to get into commercial?

    Started by CircusEnvy, 02-07-2015 12:53 PM
    4 Pages
    1 2 3 4
    • Replies: 48
    • Views: 8,058
    03-11-2015, 06:48 PM Go to last post
  20. Curious about trane ucp boards

    Started by ed3350, 03-11-2015 05:21 PM
    • Replies: 0
    • Views: 668
    03-11-2015, 05:21 PM Go to last post
  21. islandaire PTAC

    Started by northeastbeast, 11-21-2014 06:08 PM
    • Replies: 10
    • Views: 2,876
    03-11-2015, 03:30 PM Go to last post
  22. Confused WINDSTORM PROBLEMS

    Started by angel, 03-11-2015 02:38 AM
    • Replies: 3
    • Views: 825
    03-11-2015, 09:39 AM Go to last post
  23. Duct jack as a work platform to access fan powered boxes

    Started by Tool-Slinger, 03-07-2015 09:21 PM
    3 Pages
    1 2 3
    • Replies: 32
    • Views: 3,526
    03-09-2015, 09:43 PM Go to last post
  24. File? Or angle grinder?

    Started by BBeerme, 03-06-2015 09:01 AM
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 3,782
    03-08-2015, 11:00 AM Go to last post
  25. trane TDC240B400FB schematic ?

    Started by tonydykes55, 03-08-2015 02:00 AM
    • Replies: 1
    • Views: 775
    03-08-2015, 08:56 AM Go to last post
  26. service manuals

    Started by joeschmo, 03-05-2015 01:34 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 2,204
    03-07-2015, 09:52 AM Go to last post
    • Replies: 7
    • Views: 2,012
    03-05-2015, 09:58 AM Go to last post
  27. Ductless braided freon lines

    Started by jeremyr325, 03-03-2015 02:33 PM
    • Replies: 6
    • Views: 1,334
    03-05-2015, 04:32 AM Go to last post
  28. Lennox tonnage

    Started by jimmyboy85, 03-04-2015 12:49 PM
    • Replies: 5
    • Views: 1,080
    03-04-2015, 01:46 PM Go to last post
  29. Confused Cold Flow Water Source Heat Pump

    Started by anacdoctor, 03-04-2015 12:19 PM
    • Replies: 0
    • Views: 676
    03-04-2015, 12:19 PM Go to last post
    • Replies: 0
    • Views: 534
    03-04-2015, 12:00 PM Go to last post
  30. Trane Precedent 1 + 1 + 1 hybrid coil cleaning

    Started by lowtech, 03-04-2015 07:02 AM
    • Replies: 0
    • Views: 646
    03-04-2015, 07:02 AM Go to last post
  31. Carrier 48DK PSIO board replacement - need help

    Started by hvacstud, 03-03-2015 10:15 AM
    • Replies: 3
    • Views: 898
    03-03-2015, 11:37 PM Go to last post
  32. Wink lennox GCS20R-411-75-35 MANUAL & PARTS

    Started by mrhvacmechanic, 12-31-2011 06:08 PM
    • Replies: 9
    • Views: 3,617
    03-03-2015, 09:08 PM Go to last post
  33. VRF equipments

    Started by brztech, 11-20-2014 08:16 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 5,174
    03-03-2015, 09:27 AM Go to last post
  34. Lennox "fresh air tempering" ?

    Started by IRBH, 03-02-2015 08:32 PM
    • Replies: 5
    • Views: 1,691
    03-02-2015, 09:12 PM Go to last post
  35. Confused Aaon -RQ-005 and reheat

    Started by sodak al, 02-20-2015 05:57 PM
    • Replies: 2
    • Views: 1,479
    03-02-2015, 01:51 PM Go to last post
  36. Engineered Air DJ-40-O Pre purge problem

    Started by b-roq, 12-16-2013 08:51 PM
    • Replies: 1
    • Views: 1,395
    03-01-2015, 07:38 PM Go to last post
  37. gas piping question

    Started by jason2117, 02-28-2015 04:56 PM
    • Replies: 2
    • Views: 1,282
    02-28-2015, 05:28 PM Go to last post
  38. Belt tension and alignment

    Started by malans12, 02-15-2015 07:43 PM
    3 Pages
    1 2 3
    • Replies: 36
    • Views: 7,426
    02-28-2015, 03:48 PM Go to last post
  39. JCI Metasys NAE or NCE?

    Started by CHAMBERS87, 11-29-2012 11:33 AM
    • Replies: 3
    • Views: 2,926
    02-28-2015, 08:33 AM Go to last post
  40. Boiler expansion tank replace

    Started by poptop22, 02-27-2015 09:39 AM
    • Replies: 9
    • Views: 2,593
    02-28-2015, 12:18 AM Go to last post
  41. compressor/electric heat lock outsensor location

    Started by malans12, 02-15-2015 09:14 PM
    • Replies: 6
    • Views: 1,330
    02-27-2015, 10:09 PM Go to last post
  42. converting 230v compressor to 277v by changing capacitor???

    Started by vh, 02-22-2015 07:26 PM
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 5,362
    02-27-2015, 01:43 AM Go to last post

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