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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 or Homeowner posts here please. ONLY Tech to Tech chatter

    Started by Dad, 08-10-2011 04:34 PM
    • Replies: 0
    • Views: 42,919
    Dad
    08-10-2011, 04:34 PM Go to last post

  1. Normal Thread Normal Threads

  2. Does anyone have a diagram of the oil circuit for a coolpak6000

    Started by CryoBoy, 10-26-2023 11:30 AM
    • Replies: 1
    • Views: 6,778
    71CHOPS
    10-28-2023, 01:38 PM Go to last post

  3. Boiler blowdown.

    Started by ksefan, 10-19-2023 09:44 AM
    3 Attachment(s)
    • Replies: 6
    • Views: 8,648
    heatingman
    10-26-2023, 08:57 PM Go to last post

  4. Hmm Banging noise in secondary condenser piping

    Started by MammothAire, 09-30-2023 10:17 PM
    • Replies: 8
    • Views: 12,064
    Unlimited1
    10-21-2023, 04:14 PM Go to last post

  5. R438A compressor problems

    Started by HVACNINJA78, 10-18-2023 08:52 PM
    1 Attachment(s)
    • Replies: 15
    • Views: 8,785
    BBeerme
    10-21-2023, 10:19 AM Go to last post

  6. Trane YSJ series: High speed cooling?

    Started by Atipic, 10-17-2023 01:41 PM
    • Replies: 2
    • Views: 8,946
    rundawg
    10-18-2023, 05:39 AM Go to last post

  7. Carrier 38AUD start up in cooler weather

    Started by JabronySandwich, 10-12-2023 03:52 PM
    • Replies: 15
    • Views: 10,017
    JabronySandwich
    10-13-2023, 01:47 PM Go to last post

  8. American standard Odyssey with symbio controls

    Started by Debbie B, 09-23-2023 07:50 PM
    • Replies: 3
    • Views: 13,210
    JabronySandwich
    10-12-2023, 04:05 PM Go to last post

  9. York YLAA0065

    Started by Robert George, 10-12-2023 09:16 AM
    • Replies: 3
    • Views: 9,841
    jayguy
    10-12-2023, 01:25 PM Go to last post

  10. 3 phase motor resistance

    Started by muffinman540, 10-01-2023 04:54 PM
    • Replies: 18
    • Views: 13,354
    causa
    10-12-2023, 07:51 AM Go to last post

  11. What is this valve (hydronics)

    Started by 2sac, 10-03-2023 11:42 AM
    1 Attachment(s)
    • Replies: 18
    • Views: 12,369
    2sac
    10-11-2023, 08:18 PM Go to last post

  12. Lennox Prodigy 2.0 Issue

    Started by HoelscherCJ, 11-03-2022 10:19 AM
    • Replies: 5
    • Views: 11,880
    HoelscherCJ
    10-10-2023, 11:08 AM Go to last post

  13. Trane DC 3 ph PM motor parameters on on Eaton DC1-12015 VFD VAriable speed HTPump

    Started by GEO1980, 04-30-2022 08:50 AM
    • Replies: 9
    • Views: 11,048
    RCinFLA
    10-10-2023, 11:04 AM Go to last post

  14. Liebert Chilled WaterValves

    Started by markgHVAC, 10-10-2023 07:43 AM
    • Replies: 2
    • Views: 10,191
    ehsx
    10-10-2023, 10:59 AM Go to last post

  15. Mega press on chilled water piping??

    Started by anthonyac1, 10-08-2023 11:32 AM
    1 Attachment(s)
    • Replies: 2
    • Views: 9,845
    VTP99
    10-08-2023, 11:42 AM Go to last post

  16. AWS Data Center BMS Engineer | Preparation

    Started by nishanthmaha, 10-05-2023 01:47 PM
    • Replies: 1
    • Views: 10,186
    AIS Pros
    10-08-2023, 05:28 AM Go to last post

  17. Mobil Delvac Extreme Grease Mixed With Mobile Polyrex EM In Cooling Tower Bearings

    Started by PhoenixTech, 09-28-2023 02:22 PM
    • Replies: 5
    • Views: 10,757
    gbfromsd
    10-08-2023, 04:34 AM Go to last post

  18. Hmm The mixing of refrigerants

    Started by adamastone78, 10-02-2023 10:51 AM
    • Replies: 8
    • Views: 10,174
    Snapperhead
    10-07-2023, 11:45 PM Go to last post

  19. FORMER company owner seeking company to purchase

    Started by RMG, 10-04-2023 11:38 AM
    • Replies: 0
    • Views: 9,598
    RMG
    10-04-2023, 11:38 AM Go to last post

  20. Another capacitor replacement question

    Started by Oodly, 10-01-2023 11:05 AM
    1 Attachment(s)
    • Replies: 13
    • Views: 10,374
    kdean1
    10-02-2023, 12:43 PM Go to last post

  21. Trane 20 Ton Split

    Started by JSRefrigeration, 09-29-2023 07:05 PM
    2 Attachment(s)
    • Replies: 4
    • Views: 9,933
    ehsx
    10-01-2023, 09:48 AM Go to last post

  22. NIC Commercial air balancing

    Started by TM2424, 09-27-2023 03:00 PM
    • Replies: 5
    • Views: 10,143
    TM2424
    09-27-2023, 07:02 PM Go to last post

  23. Lowest Micron ever??

    Started by ARTICHILL, 08-31-2014 11:49 PM
    2 Pages •
    1 2
    • Replies: 24
    • Views: 16,146
    vin lashon
    09-26-2023, 04:00 PM Go to last post

  24. Thumbs up Motor and fan bearing grease….preferences and compatibility

    Started by Sausage King, 09-22-2023 01:22 PM
    4 Attachment(s)
    • Replies: 8
    • Views: 11,553
    VTP99
    09-23-2023, 01:24 PM Go to last post

  25. OCTAGON AIR SYSTYEM UNITS

    Started by Chrisnat, 09-22-2023 11:51 AM
    • Replies: 2
    • Views: 9,811
    Chrisnat
    09-22-2023, 11:58 AM Go to last post

  26. Bard exterior wall mounts obsolete? Mini Splits the way of the future?

    Started by aslone, 09-08-2023 10:58 AM
    2 Pages •
    1 2
    1 Attachment(s)
    • Replies: 23
    • Views: 12,678
    Jeffboi12
    09-21-2023, 05:20 PM Go to last post

  27. Supply Fan Issue

    Started by SergeyB, 08-10-2023 12:37 PM
    2 Attachment(s)
    • Replies: 14
    • Views: 13,263
    71CHOPS
    09-21-2023, 09:28 AM Go to last post

  28. McQuay SWT023 package R22 replacement

    Started by Bermydiver, 09-11-2023 10:16 AM
    • Replies: 6
    • Views: 10,958
    71CHOPS
    09-20-2023, 11:27 PM Go to last post

  29. Tonnage of Carrier RTU

    Started by love2bTech, 09-18-2023 04:11 PM
    • Replies: 5
    • Views: 8,625
    BaldLoonie
    09-19-2023, 12:40 PM Go to last post

  30. Correct run capacitor size for Trane DP13D-VW1-KA

    Started by davidjones, 09-16-2023 09:53 AM
    1 Attachment(s)
    • Replies: 17
    • Views: 9,276
    VTP99
    09-18-2023, 10:08 AM Go to last post

  31. Carrier VRF tech support

    Started by daniel_110, 09-11-2023 02:53 PM
    • Replies: 1
    • Views: 9,596
    fitzyfitta
    09-15-2023, 03:30 PM Go to last post

  32. Carrier 48A3S040 40 ton HSST

    Started by Holmbergz, 09-08-2023 02:55 PM
    • Replies: 5
    • Views: 9,837
    Holmbergz
    09-11-2023, 04:27 PM Go to last post

  33. Receiver above or below condenser oulet.

    Started by jlunt, 09-09-2023 09:54 PM
    • Replies: 2
    • Views: 9,627
    ehsx
    09-10-2023, 01:25 PM Go to last post

  34. Question The building's plenum has positive pressure!?

    Started by Fractalz, 09-08-2023 03:42 PM
    4 Pages •
    1 2 3 4
    2 Attachment(s)
    • Replies: 63
    • Views: 10,847
    71CHOPS
    09-09-2023, 11:34 PM Go to last post

  35. Question YVAA high motor temp. alarm

    Started by Mfawzy04, 09-08-2023 05:20 PM
    1 Attachment(s)
    • Replies: 6
    • Views: 9,433
    jayguy
    09-09-2023, 09:06 AM Go to last post

  36. Riddle Me This . . . 22/410A

    Started by BBeerme, 03-21-2017 07:19 PM
    10 Pages •
    1 2 3 4 5 6 ... 10
    1 Attachment(s)
    • Replies: 184
    • Views: 36,553
    BBeerme
    09-08-2023, 10:04 AM Go to last post

  37. Lennox m2 Prodigy controller stays in fan only mode

    Started by Shad111892, 09-06-2023 07:00 PM
    • Replies: 1
    • Views: 8,905
    Makeitcold
    09-08-2023, 03:25 AM Go to last post

  38. Best Brand to Replace an Old Lennox RTU With?

    Started by puron1, 09-07-2023 08:36 AM
    lennox, rtu
    • Replies: 7
    • Views: 8,917
    supers_5
    09-08-2023, 12:46 AM Go to last post

  39. 3 or 6 ton?

    Started by MItech123, 09-07-2023 10:07 PM
    5 Attachment(s)
    • Replies: 14
    • Views: 8,282
    jtrammel
    09-07-2023, 11:11 PM Go to last post

  40. Managing room pressure

    Started by Snow23, 09-07-2023 12:42 PM
    • Replies: 4
    • Views: 7,485
    slctech
    09-07-2023, 08:00 PM Go to last post

  41. I Need A Plasma Table Water Chiller

    Started by Bill mcC, 09-04-2023 09:02 AM
    • Replies: 10
    • Views: 7,711
    HVAC_Marc
    09-06-2023, 04:47 PM Go to last post
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