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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: 10,789
    08-10-2011, 04:34 PM Go to last post
  1. Normal Thread Normal Threads

    • Replies: 8
    • Views: 1,012
    03-01-2017, 04:26 PM Go to last post
  2. 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: 49
    • Views: 20,125
    03-01-2017, 07:38 AM Go to last post
  3. Pool room unit

    Started by Giannis T, 02-26-2017 01:13 PM
    • Replies: 9
    • Views: 824
    02-27-2017, 07:54 PM Go to last post
  4. Exeter XL Controller

    Started by Region Rat, 02-25-2017 11:24 AM
    • Replies: 2
    • Views: 479
    02-25-2017, 08:35 PM Go to last post
  5. Addition to tool bag.

    Started by technocratic, 02-24-2017 06:30 PM
    • Replies: 9
    • Views: 1,070
    02-25-2017, 07:16 PM Go to last post
  6. TRANSFORMATIVE WAVE

    Started by HvAckid82, 09-10-2013 08:56 PM
    5 Pages
    1 2 3 4 5
    • Replies: 52
    • Views: 11,072
    02-25-2017, 05:40 PM Go to last post
  7. L1 and L2!!

    Started by eye in the sky, 11-28-2011 12:51 AM
    4 Pages
    1 2 3 4
    • Replies: 49
    • Views: 10,837
    02-24-2017, 01:44 PM Go to last post
  8. Sports hall HVAC

    Started by Pinokio, 02-24-2017 01:24 PM
    • Replies: 0
    • Views: 442
    02-24-2017, 01:24 PM Go to last post
  9. Help identify room stat

    Started by poptop22, 02-22-2017 09:26 PM
    • Replies: 5
    • Views: 625
    02-23-2017, 05:47 PM Go to last post
  10. ROTORY Compressor Phasing

    Started by Kasari, 02-22-2017 02:56 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 1,053
    02-23-2017, 02:41 PM Go to last post
  11. Airtrack Control for Large Burners

    Started by McFridgeGuy, 02-16-2017 10:50 PM
    • Replies: 7
    • Views: 590
    02-23-2017, 09:54 AM Go to last post
  12. Split bearings

    Started by buttwheat, 02-18-2017 12:03 AM
    • Replies: 7
    • Views: 916
    02-22-2017, 08:18 PM Go to last post
  13. Carrier 39MW Air Handler

    Started by jav3467, 02-22-2017 04:13 PM
    • Replies: 0
    • Views: 440
    02-22-2017, 04:13 PM Go to last post
  14. Will Trump make R-22 Great Again ?

    Started by jmiles, 01-21-2017 06:52 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 2,794
    02-21-2017, 04:48 PM Go to last post
    • Replies: 8
    • Views: 867
    02-21-2017, 01:13 PM Go to last post
  15. Cleaning Liebert Humidifier bulbs?

    Started by obieone, 02-19-2017 02:08 PM
    • Replies: 4
    • Views: 592
    02-21-2017, 06:22 AM Go to last post
  16. Lennox humiditrol predator , no second fan or comp

    Started by Snapperhead, 11-04-2016 06:58 AM
    5 Pages
    1 2 3 4 5
    • Replies: 61
    • Views: 3,355
    02-18-2017, 11:43 AM Go to last post
  17. Carrier package unit, Subcooling circuit, why?

    Started by CHAINIK, 02-08-2017 08:11 PM
    4 Pages
    1 2 3 4
    • Replies: 46
    • Views: 3,075
    02-18-2017, 12:37 AM Go to last post
  18. Blower belts cooking!

    Started by fitzyfitta, 04-09-2013 11:02 AM
    4 Pages
    1 2 3 4
    • Replies: 49
    • Views: 7,087
    02-17-2017, 04:04 PM Go to last post
  19. Confused Leak search using trace

    Started by Alantoy13, 02-16-2017 08:59 PM
    • Replies: 3
    • Views: 578
    02-16-2017, 10:30 PM Go to last post
  20. Trane CTI Controls

    Started by 11austinlee, 02-16-2017 02:02 PM
    • Replies: 4
    • Views: 518
    02-16-2017, 04:44 PM Go to last post
  21. Sanyo ECOI mini

    Started by ckartson, 02-16-2017 06:51 AM
    • Replies: 3
    • Views: 565
    02-16-2017, 10:16 AM Go to last post
  22. potential relays

    Started by coolerinfrederick, 02-12-2017 10:07 AM
    • Replies: 8
    • Views: 855
    02-14-2017, 10:11 PM Go to last post
    • Replies: 3
    • Views: 630
    02-14-2017, 07:30 PM Go to last post
  23. Post Clocking Gas Meter

    Started by Push It, 02-14-2017 11:23 AM
    • Replies: 2
    • Views: 560
    02-14-2017, 11:46 AM Go to last post
  24. What tonnage is this?

    Started by VanMan812, 02-13-2017 10:17 PM
    • Replies: 3
    • Views: 540
    02-13-2017, 11:44 PM Go to last post
  25. Greenheck ignition cable flame rod cable

    Started by Service93, 02-11-2017 01:07 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 1,059
    02-13-2017, 10:51 PM Go to last post
  26. "ECONOFRESH" from Hitachi.

    Started by Juan Madera, 12-07-2016 05:50 PM
    economizer, variable refrigerant flow
    • Replies: 2
    • Views: 553
    02-12-2017, 11:35 PM Go to last post
  27. High sub-cooling, high super heat but flashing sight glass

    Started by hvacmo, 02-03-2017 11:19 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 81
    • Views: 4,345
    02-12-2017, 11:10 PM Go to last post
  28. Looking For Reccomended Readings

    Started by Connor Harkness, 02-09-2017 09:43 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 1,042
    02-12-2017, 10:59 PM Go to last post
  29. Trane RTU 20x35x2 Filters

    Started by Mileo407, 01-28-2017 09:50 PM
    • Replies: 7
    • Views: 1,282
    02-12-2017, 09:41 PM Go to last post
  30. from HP80 to 404A with no oil change

    Started by bwd111, 02-11-2017 08:59 PM
    • Replies: 2
    • Views: 489
    02-12-2017, 09:25 AM Go to last post
  31. Low ambient control

    Started by icy78, 02-09-2017 06:28 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 1,142
    02-11-2017, 10:48 AM Go to last post
  32. Carrier Wire diagram needed

    Started by HSI, 02-09-2017 06:07 PM
    • Replies: 1
    • Views: 488
    02-09-2017, 08:16 PM Go to last post
  33. Advice on a backflow preventer repair

    Started by mixsit, 02-01-2017 02:45 PM
    • Replies: 7
    • Views: 831
    02-08-2017, 08:38 PM Go to last post
  34. txv brazing techniques

    Started by mizzouhvac, 06-19-2011 08:56 AM
    5 Pages
    1 2 3 4 5
    • Replies: 53
    • Views: 19,181
    02-08-2017, 08:20 AM Go to last post
  35. Cool cleaning a Trane

    Started by VanMan812, 02-06-2017 12:27 PM
    • Replies: 3
    • Views: 766
    02-07-2017, 01:28 AM Go to last post
  36. Odd condenser location and freezing issues

    Started by slick101, 02-06-2017 12:06 AM
    • Replies: 0
    • Views: 472
    02-06-2017, 12:06 AM Go to last post
  37. I hate phantom voltage

    Started by 2sac, 12-09-2011 12:36 AM
    2 Pages
    1 2
    • Replies: 17
    • Views: 2,555
    02-05-2017, 11:18 AM Go to last post
  38. Mitsubishi Condensing Unit Problems

    Started by western, 02-02-2017 09:56 PM
    • Replies: 1
    • Views: 555
    02-05-2017, 06:28 AM Go to last post
  39. Carrier 48AKE050-G-111HK Economizer question

    Started by cfe, 02-04-2017 11:57 AM
    • Replies: 4
    • Views: 493
    02-04-2017, 10:36 PM Go to last post
    • Replies: 3
    • Views: 608
    02-04-2017, 06:17 PM Go to last post
  40. Intellipak gas heat question

    Started by acjourneyman, 01-24-2017 01:45 PM
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 1,590
    02-04-2017, 02:06 PM Go to last post
  41. heatpump design

    Started by johnnyb, 02-02-2017 11:53 PM
    • Replies: 6
    • Views: 579
    02-04-2017, 01:08 PM Go to last post
  42. Job post : requirement handle 30' ext. ladder .

    Started by jmiles, 01-24-2017 09:53 AM
    4 Pages
    1 2 3 4
    • Replies: 42
    • Views: 2,827
    02-03-2017, 08:38 PM Go to last post
  43. Furnace Intermittent Pilot Problem

    Started by SpyGuy, 11-22-2011 04:13 AM
    2 Pages
    1 2
    • Replies: 14
    • Views: 8,674
    02-03-2017, 07:52 AM Go to last post
  44. Carrier, defrost and freeze stat.

    Started by mccann, 01-26-2017 09:26 AM
    • Replies: 8
    • Views: 780
    02-03-2017, 07:33 AM Go to last post
  45. What am I missing?

    Started by 280zx, 07-22-2015 09:06 PM
    4 Pages
    1 2 3 4
    • Replies: 39
    • Views: 8,830
    02-03-2017, 12:48 AM Go to last post
  46. systems with dual tx valves and check valves

    Started by 12gauge, 07-26-2013 04:07 AM
    • Replies: 2
    • Views: 1,008
    02-03-2017, 12:16 AM Go to last post
  47. How does one read Dunham Bush Model Numbers?

    Started by Wallywimple, 02-01-2017 01:29 PM
    • Replies: 4
    • Views: 659
    02-02-2017, 09:49 AM Go to last post

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