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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: NO AOP posts here please. ONLY Tech to Tech chatter

    Started by Dad, 08-10-2011 04:34 PM
    • Replies: 0
    • Views: 2,669
    Dad
    08-10-2011, 04:34 PM Go to last post

  1. Confused York RTU Nightmare

    Started by qwerty hvac, 10-30-2012 07:44 PM
    4 Pages •
    1 2 3 4
    5 Attachment(s)
    • Replies: 47
    • Views: 2,718
    tim79
    11-04-2012, 01:36 PM Go to last post

  2. Restaraunt HVAC Challenge

    Started by LibertyTree, 10-17-2012 02:02 AM
    • Replies: 12
    • Views: 1,438
    coolerik
    11-04-2012, 12:33 PM Go to last post

  3. APC FM35M Computer room unit

    Started by jonesg088, 11-03-2012 03:11 PM
    • Replies: 3
    • Views: 579
    atmosphere
    11-04-2012, 06:41 AM Go to last post

  4. heat pump problems

    Started by trai, 10-19-2012 07:53 AM
    • Replies: 8
    • Views: 796
    2many??
    11-03-2012, 10:51 PM Go to last post

  5. trane rtu model# YCD240B3HAJB

    Started by tech master, 10-23-2012 01:24 PM
    2 Pages •
    1 2
    • Replies: 19
    • Views: 1,609
    luv2cruiserccl
    11-03-2012, 07:32 PM Go to last post

  6. Data Aire DAAU-3034

    Started by atufano, 10-30-2012 02:48 PM
    • Replies: 6
    • Views: 593
    atufano
    11-03-2012, 07:00 PM Go to last post

  7. VAV Boxes

    Started by ascj, 11-02-2012 05:30 PM
    • Replies: 11
    • Views: 864
    ascj
    11-03-2012, 05:23 PM Go to last post

  8. Copeland tandem compressors over amping.

    Started by acguy951, 10-20-2012 11:35 AM
    2 Pages •
    1 2
    • Replies: 22
    • Views: 1,692
    alcomech
    11-02-2012, 11:07 PM Go to last post

  9. Trane RAUJ 40 ton - wiring and sequence questions

    Started by Ancoma Tom, 10-31-2012 08:03 AM
    • Replies: 2
    • Views: 557
    Ancoma Tom
    11-01-2012, 06:53 AM Go to last post

  10. correct value Starting capacitor should i use

    Started by bob5573, 10-31-2012 10:16 PM
    • Replies: 2
    • Views: 398
    beenthere
    11-01-2012, 06:14 AM Go to last post

  11. 10ton heat pump split Carrier unit Solenoid Valve?

    Started by jayjayjayjay, 10-31-2012 11:23 AM
    • Replies: 4
    • Views: 597
    beenthere
    11-01-2012, 05:59 AM Go to last post

  12. Changeing out 40 ton condensers

    Started by captn-b, 10-25-2012 08:42 PM
    3 Pages •
    1 2 3
    • Replies: 32
    • Views: 1,941
    captn-b
    11-01-2012, 12:14 AM Go to last post

  13. high head pressure

    Started by refrigeration johnny, 09-22-2012 09:56 PM
    2 Pages •
    1 2
    1 Attachment(s)
    • Replies: 18
    • Views: 2,329
    GT Jets
    10-31-2012, 06:02 PM Go to last post

  14. TXV question

    Started by mikeacman, 10-24-2012 07:20 PM
    3 Pages •
    1 2 3
    1 Attachment(s)
    • Replies: 38
    • Views: 1,964
    steve wright
    10-31-2012, 04:47 PM Go to last post

  15. Siemans SIMOVERT MASTERDRIVES

    Started by chillerguru, 10-31-2012 12:19 PM
    • Replies: 0
    • Views: 153
    chillerguru
    10-31-2012, 12:19 PM Go to last post

  16. Hmm Help with Lennox RTU Mod GCS24

    Started by MES Jess Local 636, 10-31-2012 06:58 AM
    • Replies: 1
    • Views: 343
    MES Jess Local 636
    10-31-2012, 09:00 AM Go to last post

  17. Hydronics 3-Way Valve Port Identification ABC

    Started by Theref, 10-29-2012 03:17 PM
    1 Attachment(s)
    • Replies: 6
    • Views: 672
    atmosphere
    10-30-2012, 11:29 PM Go to last post

  18. carrier rtu on walgreens contactor issues

    Started by snowbird225, 07-23-2012 02:15 PM
    3 Pages •
    1 2 3
    • Replies: 27
    • Views: 2,104
    atmosphere
    10-29-2012, 10:39 AM Go to last post

  19. PTAC units and 3 phase

    Started by joelw2, 11-30-2011 03:04 PM
    1 Attachment(s)
    • Replies: 6
    • Views: 745
    Mrak
    10-28-2012, 01:38 PM Go to last post

  20. Liebert manual

    Started by menaphnx, 10-10-2012 07:20 PM
    • Replies: 2
    • Views: 501
    Mrak
    10-28-2012, 03:08 AM Go to last post

  21. Confused blown 5 amp fuse

    Started by davidc17, 10-25-2012 02:13 AM
    • Replies: 12
    • Views: 936
    mikeacman
    10-27-2012, 09:34 PM Go to last post

  22. Gordon Piatt burners

    Started by michael16, 10-21-2012 03:57 PM
    • Replies: 8
    • Views: 724
    OhioTech
    10-27-2012, 12:26 PM Go to last post

  23. RTUA 100 fan control bias

    Started by james mo, 10-26-2012 09:48 PM
    • Replies: 4
    • Views: 364
    valdelocc
    10-27-2012, 09:18 AM Go to last post

  24. Pressure Dependent Systems and Econo

    Started by ascj, 10-25-2012 06:45 PM
    • Replies: 8
    • Views: 456
    ascj
    10-26-2012, 06:14 PM Go to last post

  25. Confused Carrier split condensing unit, what's the tonnage?

    Started by Youngbeechnut78, 10-25-2012 02:16 PM
    • Replies: 2
    • Views: 368
    Youngbeechnut78
    10-25-2012, 09:21 PM Go to last post

  26. changeing out 40 ton condensers

    Started by captn-b, 10-24-2012 09:05 PM
    • Replies: 6
    • Views: 633
    captn-b
    10-25-2012, 08:36 PM Go to last post

  27. Question Cell Tower Temperature Controls

    Started by tuba, 10-11-2012 09:14 AM
    • Replies: 11
    • Views: 1,145
    tuba
    10-25-2012, 08:48 AM Go to last post

  28. McQuay PTAC mek009

    Started by jare215th, 07-26-2012 10:15 PM
    • Replies: 3
    • Views: 668
    jare215th
    10-25-2012, 01:22 AM Go to last post

  29. white rodgers zone valve

    Started by hvac2379, 10-17-2012 08:00 PM
    • Replies: 7
    • Views: 735
    hvac2379
    10-24-2012, 10:13 PM Go to last post

  30. looking for lennox GCS3-957-250A-10J manual

    Started by blitz, 10-24-2012 07:52 AM
    • Replies: 2
    • Views: 518
    blitz
    10-24-2012, 09:39 PM Go to last post

  31. old carrier

    Started by crazzycajun, 10-24-2012 08:50 AM
    • Replies: 3
    • Views: 322
    crazzycajun
    10-24-2012, 03:29 PM Go to last post

  32. Trend Modbus integration

    Started by C_h_a_z, 10-24-2012 07:54 AM
    • Replies: 0
    • Views: 240
    C_h_a_z
    10-24-2012, 07:54 AM Go to last post

  33. Leak Lock

    Started by hands, 10-09-2012 07:58 PM
    2 Pages •
    1 2
    • Replies: 25
    • Views: 2,297
    hands
    10-23-2012, 09:03 PM Go to last post

  34. Carrier RTU contactors buzzing and chattering

    Started by airproguyrick, 10-04-2012 07:51 PM
    2 Pages •
    1 2
    • Replies: 13
    • Views: 1,351
    jaysipes
    10-23-2012, 08:43 PM Go to last post

  35. heatpump bi flow drier

    Started by thirty years, 10-22-2012 07:31 PM
    2 Pages •
    1 2
    • Replies: 13
    • Views: 567
    SBKold
    10-23-2012, 07:59 PM Go to last post

  36. carrier 50tc - heavy condensation

    Started by KittenMittens, 10-22-2012 09:32 AM
    2 Pages •
    1 2
    1 Attachment(s)
    • Replies: 21
    • Views: 1,027
    Antarctic Fox
    10-23-2012, 04:56 PM Go to last post

  37. Confused ENG AIR DJ-100 wont light pilot real STUMPER !!!

    Started by b5srt, 10-12-2012 09:07 PM
    2 Pages •
    1 2
    • Replies: 20
    • Views: 1,839
    michael16
    10-21-2012, 04:05 PM Go to last post

  38. mcquay rtu m. rps040 heat exchanger

    Started by billyp7999, 10-21-2012 08:27 AM
    • Replies: 0
    • Views: 281
    billyp7999
    10-21-2012, 08:27 AM Go to last post

  39. REZNOR RDF2-120 schematic HELP

    Started by Alitakjack, 10-19-2012 10:40 PM
    • Replies: 7
    • Views: 633
    rundawg
    10-20-2012, 03:10 PM Go to last post

  40. Petra PPH55 manuals

    Started by waltervan, 10-20-2012 10:02 AM
    • Replies: 0
    • Views: 292
    waltervan
    10-20-2012, 10:02 AM Go to last post

  41. coil cleaning

    Started by mldp68, 09-20-2012 09:57 PM
    2 Pages •
    1 2
    • Replies: 17
    • Views: 1,769
    Antarctic Fox
    10-19-2012, 08:48 PM Go to last post

  42. Lennox GCS11 blower runs all the time

    Started by iceage, 10-11-2012 07:05 PM
    • Replies: 1
    • Views: 544
    DPinst
    10-19-2012, 01:38 PM Go to last post

  43. Exclamation Wrong sized curb adapter.... Need to salvage this job ... Help

    Started by KittenMittens, 10-16-2012 12:12 AM
    2 Pages •
    1 2
    3 Attachment(s)
    • Replies: 14
    • Views: 1,111
    KittenMittens
    10-19-2012, 09:31 AM Go to last post

  44. Help New Unit Freezstats? Location

    Started by CHAMBERS87, 10-18-2012 04:52 PM
    • Replies: 2
    • Views: 268
    CHAMBERS87
    10-19-2012, 06:23 AM Go to last post

  45. Post Need Trane Info. on units

    Started by keviekev70, 10-18-2012 09:04 PM
    • Replies: 2
    • Views: 332
    alcomech
    10-18-2012, 11:45 PM Go to last post

  46. Age of this GE rtu is???

    Started by Crazecodyk, 10-18-2012 07:04 PM
    • Replies: 3
    • Views: 338
    timebuilder
    10-18-2012, 09:01 PM Go to last post

  47. russell id

    Started by John E, 10-17-2012 06:20 PM
    3 Attachment(s)
    • Replies: 2
    • Views: 356
    John E
    10-18-2012, 07:32 PM Go to last post

  48. hot water pump VFD Status

    Started by newtohvac13, 10-18-2012 08:47 AM
    • Replies: 8
    • Views: 468
    hvac69
    10-18-2012, 07:10 PM Go to last post

  49. OAT failure effecting the heating cycle?

    Started by xxcels, 10-16-2012 09:41 AM
    • Replies: 10
    • Views: 566
    xxcels
    10-18-2012, 02:15 PM Go to last post

  50. cgafc304ade1a0c00gh000000t0w00

    Started by curdogg08, 10-17-2012 01:31 PM
    • Replies: 1
    • Views: 291
    jayguy
    10-17-2012, 11:16 PM Go to last post
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