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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: 9,836
    08-10-2011, 04:34 PM Go to last post
  1. Normal Thread Normal Threads

  2. TRANSFORMATIVE WAVE

    Started by HvAckid82, 09-10-2013 08:56 PM
    4 Pages
    1 2 3 4
    • Replies: 48
    • Views: 8,543
    Today, 12:14 AM Go to last post
  3. Question Motor Grease Relief fitting

    Started by Push It, 02-22-2017 02:09 PM
    • Replies: 3
    • Views: 182
    Yesterday, 08:24 PM Go to last post
  4. Help identify room stat

    Started by poptop22, 02-22-2017 09:26 PM
    • Replies: 5
    • Views: 241
    Yesterday, 05:47 PM Go to last post
  5. ROTORY Compressor Phasing

    Started by Kasari, 02-22-2017 02:56 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 433
    Yesterday, 02:41 PM Go to last post
  6. Airtrack Control for Large Burners

    Started by McFridgeGuy, 02-16-2017 10:50 PM
    • Replies: 7
    • Views: 232
    Yesterday, 09:54 AM 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: 48
    • Views: 7,602
    02-22-2017, 11:07 PM Go to last post
  8. Split bearings

    Started by buttwheat, 02-18-2017 12:03 AM
    • Replies: 7
    • Views: 387
    02-22-2017, 08:18 PM Go to last post
  9. Skymark Skypak's

    Started by cmajerus, 09-25-2013 01:09 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 5,527
    02-22-2017, 04:18 PM Go to last post
  10. Carrier 39MW Air Handler

    Started by jav3467, 02-22-2017 04:13 PM
    • Replies: 0
    • Views: 95
    02-22-2017, 04:13 PM Go to last post
  11. Will Trump make R-22 Great Again ?

    Started by jmiles, 01-21-2017 06:52 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 1,265
    02-21-2017, 04:48 PM Go to last post
    • Replies: 8
    • Views: 275
    02-21-2017, 01:13 PM Go to last post
  12. Cleaning Liebert Humidifier bulbs?

    Started by obieone, 02-19-2017 02:08 PM
    • Replies: 4
    • Views: 239
    02-21-2017, 06:22 AM Go to last post
  13. Gordon piatt burners

    Started by bcharlesm30, 02-14-2017 08:38 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 100
    • Views: 2,103
    02-20-2017, 05:53 PM Go to last post
  14. 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: 1,879
    02-18-2017, 11:43 AM Go to last post
  15. Carrier package unit, Subcooling circuit, why?

    Started by CHAINIK, 02-08-2017 08:11 PM
    4 Pages
    1 2 3 4
    • Replies: 46
    • Views: 1,566
    02-18-2017, 12:37 AM Go to last post
  16. Blower belts cooking!

    Started by fitzyfitta, 04-09-2013 11:02 AM
    4 Pages
    1 2 3 4
    • Replies: 49
    • Views: 5,021
    02-17-2017, 04:04 PM Go to last post
  17. Confused Leak search using trace

    Started by Alantoy13, 02-16-2017 08:59 PM
    • Replies: 3
    • Views: 219
    02-16-2017, 10:30 PM Go to last post
  18. Trane CTI Controls

    Started by 11austinlee, 02-16-2017 02:02 PM
    • Replies: 4
    • Views: 201
    02-16-2017, 04:44 PM Go to last post
  19. Sanyo ECOI mini

    Started by ckartson, 02-16-2017 06:51 AM
    • Replies: 3
    • Views: 186
    02-16-2017, 10:16 AM Go to last post
  20. potential relays

    Started by coolerinfrederick, 02-12-2017 10:07 AM
    • Replies: 8
    • Views: 489
    02-14-2017, 10:11 PM Go to last post
    • Replies: 3
    • Views: 333
    02-14-2017, 07:30 PM Go to last post
  21. Post Clocking Gas Meter

    Started by Push It, 02-14-2017 11:23 AM
    • Replies: 2
    • Views: 234
    02-14-2017, 11:46 AM Go to last post
  22. What tonnage is this?

    Started by VanMan812, 02-13-2017 10:17 PM
    • Replies: 3
    • Views: 269
    02-13-2017, 11:44 PM Go to last post
  23. Greenheck ignition cable flame rod cable

    Started by Service93, 02-11-2017 01:07 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 526
    02-13-2017, 10:51 PM Go to last post
  24. "ECONOFRESH" from Hitachi.

    Started by Juan Madera, 12-07-2016 05:50 PM
    economizer, variable refrigerant flow
    • Replies: 2
    • Views: 292
    02-12-2017, 11:35 PM Go to last post
  25. 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: 2,426
    02-12-2017, 11:10 PM Go to last post
  26. Looking For Reccomended Readings

    Started by Connor Harkness, 02-09-2017 09:43 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 590
    02-12-2017, 10:59 PM Go to last post
  27. Trane RTU 20x35x2 Filters

    Started by Mileo407, 01-28-2017 09:50 PM
    • Replies: 7
    • Views: 482
    02-12-2017, 09:41 PM Go to last post
  28. from HP80 to 404A with no oil change

    Started by bwd111, 02-11-2017 08:59 PM
    • Replies: 2
    • Views: 231
    02-12-2017, 09:25 AM Go to last post
  29. VRF Commissioner

    Started by ra88wfo, 02-04-2017 01:13 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 693
    02-11-2017, 11:34 PM Go to last post
  30. Low ambient control

    Started by icy78, 02-09-2017 06:28 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 543
    02-11-2017, 10:48 AM Go to last post
  31. York Chiller

    Started by Charlie1776, 08-01-2012 10:04 AM
    2 Pages
    1 2
    • Replies: 20
    • Views: 4,689
    02-09-2017, 10:19 PM Go to last post
  32. Carrier Wire diagram needed

    Started by HSI, 02-09-2017 06:07 PM
    • Replies: 1
    • Views: 242
    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: 442
    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: 16,984
    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: 464
    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: 269
    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: 2,148
    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: 316
    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: 276
    02-04-2017, 10:36 PM Go to last post
    • Replies: 3
    • Views: 353
    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: 927
    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: 350
    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: 1,743
    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: 7,788
    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: 428
    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: 7,547
    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: 838
    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: 16,532
    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: 279
    02-02-2017, 09:49 AM Go to last post

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