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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: 10,546
    08-10-2011, 04:34 PM Go to last post
  1. Normal Thread Normal Threads

  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: 18,727
    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: 731
    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: 422
    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: 940
    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: 10,444
    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: 9,611
    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: 404
    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: 570
    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: 930
    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: 499
    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: 770
    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: 359
    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: 2,334
    02-21-2017, 04:48 PM Go to last post
    • Replies: 8
    • Views: 682
    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: 534
    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: 2,924
    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: 2,586
    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: 6,397
    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: 501
    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: 436
    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: 459
    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: 789
    02-14-2017, 10:11 PM Go to last post
    • Replies: 3
    • Views: 562
    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: 480
    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: 490
    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: 919
    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: 494
    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: 3,895
    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: 911
    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: 1,044
    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: 423
    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: 962
    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: 433
    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: 726
    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: 18,463
    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: 694
    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: 415
    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: 2,461
    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: 493
    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: 442
    02-04-2017, 10:36 PM Go to last post
    • Replies: 3
    • Views: 538
    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: 1,428
    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: 528
    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: 2,454
    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: 8,471
    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: 651
    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: 8,282
    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: 934
    02-03-2017, 12:16 AM Go to last post
  47. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 01:48 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 65
    • Views: 17,263
    02-02-2017, 05:25 PM Go to last post
  48. How does one read Dunham Bush Model Numbers?

    Started by Wallywimple, 02-01-2017 01:29 PM
    • Replies: 4
    • Views: 520
    02-02-2017, 09:49 AM Go to last post

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