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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: 10,005
    08-10-2011, 04:34 PM Go to last post
  1. Normal Thread Normal Threads

  2. Question Motor Grease Relief fitting

    Started by Push It, 02-22-2017 02:09 PM
    • Replies: 7
    • Views: 582
    02-27-2017, 03:18 PM Go to last post
  3. Exeter XL Controller

    Started by Region Rat, 02-25-2017 11:24 AM
    • Replies: 2
    • Views: 315
    02-25-2017, 08:35 PM Go to last post
  4. Addition to tool bag.

    Started by technocratic, 02-24-2017 06:30 PM
    • Replies: 9
    • Views: 760
    02-25-2017, 07:16 PM Go to last post
  5. TRANSFORMATIVE WAVE

    Started by HvAckid82, 09-10-2013 08:56 PM
    5 Pages
    1 2 3 4 5
    • Replies: 52
    • Views: 9,525
    02-25-2017, 05:40 PM Go to last post
  6. L1 and L2!!

    Started by eye in the sky, 11-28-2011 12:51 AM
    4 Pages
    1 2 3 4
    • Replies: 49
    • Views: 8,660
    02-24-2017, 01:44 PM Go to last post
  7. Sports hall HVAC

    Started by Pinokio, 02-24-2017 01:24 PM
    • Replies: 0
    • Views: 321
    02-24-2017, 01:24 PM Go to last post
  8. Help identify room stat

    Started by poptop22, 02-22-2017 09:26 PM
    • Replies: 5
    • Views: 460
    02-23-2017, 05:47 PM Go to last post
  9. ROTORY Compressor Phasing

    Started by Kasari, 02-22-2017 02:56 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 756
    02-23-2017, 02:41 PM Go to last post
  10. Airtrack Control for Large Burners

    Started by McFridgeGuy, 02-16-2017 10:50 PM
    • Replies: 7
    • Views: 391
    02-23-2017, 09:54 AM Go to last post
  11. Split bearings

    Started by buttwheat, 02-18-2017 12:03 AM
    • Replies: 7
    • Views: 608
    02-22-2017, 08:18 PM Go to last post
  12. Carrier 39MW Air Handler

    Started by jav3467, 02-22-2017 04:13 PM
    • Replies: 0
    • Views: 239
    02-22-2017, 04:13 PM Go to last post
  13. Will Trump make R-22 Great Again ?

    Started by jmiles, 01-21-2017 06:52 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 1,701
    02-21-2017, 04:48 PM Go to last post
    • Replies: 8
    • Views: 484
    02-21-2017, 01:13 PM Go to last post
  14. Cleaning Liebert Humidifier bulbs?

    Started by obieone, 02-19-2017 02:08 PM
    • Replies: 4
    • Views: 423
    02-21-2017, 06:22 AM Go to last post
  15. 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: 2,451
    02-18-2017, 11:43 AM Go to last post
  16. Carrier package unit, Subcooling circuit, why?

    Started by CHAINIK, 02-08-2017 08:11 PM
    4 Pages
    1 2 3 4
    • Replies: 46
    • Views: 2,065
    02-18-2017, 12:37 AM Go to last post
  17. Blower belts cooking!

    Started by fitzyfitta, 04-09-2013 11:02 AM
    4 Pages
    1 2 3 4
    • Replies: 49
    • Views: 5,653
    02-17-2017, 04:04 PM Go to last post
  18. Confused Leak search using trace

    Started by Alantoy13, 02-16-2017 08:59 PM
    • Replies: 3
    • Views: 366
    02-16-2017, 10:30 PM Go to last post
  19. Trane CTI Controls

    Started by 11austinlee, 02-16-2017 02:02 PM
    • Replies: 4
    • Views: 327
    02-16-2017, 04:44 PM Go to last post
  20. Sanyo ECOI mini

    Started by ckartson, 02-16-2017 06:51 AM
    • Replies: 3
    • Views: 312
    02-16-2017, 10:16 AM Go to last post
  21. potential relays

    Started by coolerinfrederick, 02-12-2017 10:07 AM
    • Replies: 8
    • Views: 647
    02-14-2017, 10:11 PM Go to last post
    • Replies: 3
    • Views: 447
    02-14-2017, 07:30 PM Go to last post
  22. Post Clocking Gas Meter

    Started by Push It, 02-14-2017 11:23 AM
    • Replies: 2
    • Views: 347
    02-14-2017, 11:46 AM Go to last post
  23. What tonnage is this?

    Started by VanMan812, 02-13-2017 10:17 PM
    • Replies: 3
    • Views: 390
    02-13-2017, 11:44 PM Go to last post
  24. Greenheck ignition cable flame rod cable

    Started by Service93, 02-11-2017 01:07 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 732
    02-13-2017, 10:51 PM Go to last post
  25. "ECONOFRESH" from Hitachi.

    Started by Juan Madera, 12-07-2016 05:50 PM
    economizer, variable refrigerant flow
    • Replies: 2
    • Views: 387
    02-12-2017, 11:35 PM Go to last post
  26. 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: 3,118
    02-12-2017, 11:10 PM Go to last post
  27. Looking For Reccomended Readings

    Started by Connor Harkness, 02-09-2017 09:43 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 724
    02-12-2017, 10:59 PM Go to last post
  28. Trane RTU 20x35x2 Filters

    Started by Mileo407, 01-28-2017 09:50 PM
    • Replies: 7
    • Views: 680
    02-12-2017, 09:41 PM Go to last post
  29. from HP80 to 404A with no oil change

    Started by bwd111, 02-11-2017 08:59 PM
    • Replies: 2
    • Views: 339
    02-12-2017, 09:25 AM Go to last post
  30. Low ambient control

    Started by icy78, 02-09-2017 06:28 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 753
    02-11-2017, 10:48 AM Go to last post
  31. Carrier Wire diagram needed

    Started by HSI, 02-09-2017 06:07 PM
    • Replies: 1
    • Views: 333
    02-09-2017, 08:16 PM Go to last post
  32. Advice on a backflow preventer repair

    Started by mixsit, 02-01-2017 02:45 PM
    • Replies: 7
    • Views: 573
    02-08-2017, 08:38 PM Go to last post
  33. txv brazing techniques

    Started by mizzouhvac, 06-19-2011 08:56 AM
    5 Pages
    1 2 3 4 5
    • Replies: 53
    • Views: 17,607
    02-08-2017, 08:20 AM Go to last post
  34. Cool cleaning a Trane

    Started by VanMan812, 02-06-2017 12:27 PM
    • Replies: 3
    • Views: 598
    02-07-2017, 01:28 AM Go to last post
  35. Odd condenser location and freezing issues

    Started by slick101, 02-06-2017 12:06 AM
    • Replies: 0
    • Views: 342
    02-06-2017, 12:06 AM Go to last post
  36. I hate phantom voltage

    Started by 2sac, 12-09-2011 12:36 AM
    2 Pages
    1 2
    • Replies: 17
    • Views: 2,306
    02-05-2017, 11:18 AM Go to last post
  37. Mitsubishi Condensing Unit Problems

    Started by western, 02-02-2017 09:56 PM
    • Replies: 1
    • Views: 395
    02-05-2017, 06:28 AM Go to last post
  38. Carrier 48AKE050-G-111HK Economizer question

    Started by cfe, 02-04-2017 11:57 AM
    • Replies: 4
    • Views: 367
    02-04-2017, 10:36 PM Go to last post
    • Replies: 3
    • Views: 440
    02-04-2017, 06:17 PM Go to last post
  39. Intellipak gas heat question

    Started by acjourneyman, 01-24-2017 01:45 PM
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 1,198
    02-04-2017, 02:06 PM Go to last post
  40. heatpump design

    Started by johnnyb, 02-02-2017 11:53 PM
    • Replies: 6
    • Views: 444
    02-04-2017, 01:08 PM Go to last post
  41. 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: 2,058
    02-03-2017, 08:38 PM Go to last post
  42. Furnace Intermittent Pilot Problem

    Started by SpyGuy, 11-22-2011 04:13 AM
    2 Pages
    1 2
    • Replies: 14
    • Views: 8,118
    02-03-2017, 07:52 AM Go to last post
  43. Carrier, defrost and freeze stat.

    Started by mccann, 01-26-2017 09:26 AM
    • Replies: 8
    • Views: 498
    02-03-2017, 07:33 AM Go to last post
  44. What am I missing?

    Started by 280zx, 07-22-2015 09:06 PM
    4 Pages
    1 2 3 4
    • Replies: 39
    • Views: 7,839
    02-03-2017, 12:48 AM Go to last post
  45. systems with dual tx valves and check valves

    Started by 12gauge, 07-26-2013 04:07 AM
    • Replies: 2
    • Views: 863
    02-03-2017, 12:16 AM Go to last post
  46. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 01:48 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 65
    • Views: 16,764
    02-02-2017, 05:25 PM 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: 352
    02-02-2017, 09:49 AM Go to last post
  48. Inrush current for HVAC applications

    Started by jw-lu597, 01-28-2017 08:04 PM
    4 Pages
    1 2 3 4
    • Replies: 43
    • Views: 1,421
    02-01-2017, 08:33 PM Go to last post

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