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Forum: AOP Commercial HVAC

FOR EQUIPMENT OWNERS ONLY Questions and discussions regarding Commercial Buildings

  1. Sticky Thread Sticky Threads

  2. Sticky Thread >>READ THIS FIRST<< NO DIY? Why NOT??

    Started by Dad, 10-31-2011 07:41 PM
    • Replies: 0
    • Views: 39,971
    Dad
    10-31-2011, 07:41 PM Go to last post

  1. Normal Thread Normal Threads

  2. carrier 30gb circa 1988

    Started by stanbyyourword, 07-18-2009 03:36 AM
    • Replies: 11
    • Views: 4,232
    consolidmech
    07-21-2010, 06:28 PM Go to last post

  3. Landis&Gyr thermostats with override

    Started by geochurchi, 07-20-2010 02:09 PM
    • Replies: 8
    • Views: 1,857
    joey791
    07-21-2010, 06:04 PM Go to last post

  4. Westinghouse chiller

    Started by Heavymetalmover, 07-21-2010 11:24 AM
    • Replies: 1
    • Views: 1,660
    Heavymetalmover
    07-21-2010, 11:29 AM Go to last post

  5. Help me with a sequence for dual duct VAV boxes in a 1972 building? All Pneumatic

    Started by Rhizzlebop, 07-16-2010 10:44 AM
    2 Pages •
    1 2
    • Replies: 21
    • Views: 8,910
    HVAC Teacher
    07-21-2010, 09:52 AM Go to last post

  6. Confused High Discharge PDIG

    Started by BIG KEITH, 07-20-2010 10:18 PM
    • Replies: 1
    • Views: 1,030
    cperk
    07-20-2010, 10:33 PM Go to last post

  7. Confused AAON TRouble

    Started by hvactech80, 07-20-2010 06:06 PM
    • Replies: 1
    • Views: 3,396
    doubleduece
    07-20-2010, 09:53 PM Go to last post

  8. setting your suction press.

    Started by newbe0507, 07-18-2010 10:52 PM
    • Replies: 9
    • Views: 1,799
    cperk
    07-20-2010, 06:10 PM Go to last post

  9. 410a Conversion from r-22

    Started by pringlel, 07-01-2010 01:21 PM
    3 Pages •
    1 2 3
    • Replies: 51
    • Views: 8,778
    mcewans
    07-20-2010, 01:30 PM Go to last post

  10. York 410A 20 ton startup

    Started by The Reaper, 07-20-2010 12:49 PM
    • Replies: 0
    • Views: 1,188
    The Reaper
    07-20-2010, 12:49 PM Go to last post

  11. Cool Air cooled Chiller from Italy

    Started by whitepoundog, 07-13-2010 09:35 PM
    • Replies: 6
    • Views: 2,276
    jdcoolj
    07-20-2010, 11:44 AM Go to last post

  12. PUMPOUT UINT COMPRESSOR

    Started by can, 07-18-2010 01:38 AM
    • Replies: 4
    • Views: 1,462
    bob_scheel
    07-20-2010, 12:37 AM Go to last post

  13. OLD Swimming Pool, NEW HVAC reqd

    Started by acstewart25, 07-13-2010 02:51 AM
    4 Attachment(s)
    • Replies: 8
    • Views: 2,319
    HeyBob
    07-19-2010, 10:47 AM Go to last post

  14. Old York Embassy Model# 2501 /w A old Marley Aquatower Model# 4350

    Started by cook42, 07-19-2010 12:28 AM
    • Replies: 0
    • Views: 1,301
    cook42
    07-19-2010, 12:28 AM Go to last post

  15. Confused SIMPLE HONEYWELL TSTAT QUESTION

    Started by gtt, 07-18-2010 12:05 PM
    • Replies: 3
    • Views: 1,696
    fxb80
    07-18-2010, 10:39 PM Go to last post

  16. Hmm 06D breakdown; mixed refrigerant?

    Started by whoaghi, 07-14-2010 08:45 PM
    • Replies: 16
    • Views: 3,562
    whoaghi
    07-18-2010, 07:58 PM Go to last post

  17. GLYCOL DEGRADATION

    Started by pat461, 07-06-2010 06:11 PM
    • Replies: 8
    • Views: 7,822
    incontrol
    07-18-2010, 07:52 PM Go to last post

  18. ESP on large air handlers?

    Started by jpsmith1cm, 07-16-2010 10:21 PM
    3 Pages •
    1 2 3
    • Replies: 57
    • Views: 9,961
    Carnak
    07-18-2010, 03:30 PM Go to last post

  19. AIRFLOW LVLT

    Started by ruzfactor, 06-29-2010 10:29 AM
    2 Attachment(s)
    • Replies: 2
    • Views: 1,416
    Carnak
    07-18-2010, 12:35 AM Go to last post

  20. Unhappy It's been a MONTH and swamp cooler STILL not fixed. Help!!

    Started by doodlebug1, 07-12-2010 02:14 PM
    • Replies: 14
    • Views: 3,506
    DavyB
    07-17-2010, 01:04 PM Go to last post

  21. ROBUR

    Started by HvAckid82, 09-06-2009 07:45 AM
    • Replies: 7
    • Views: 5,716
    fxb80
    07-17-2010, 10:35 AM Go to last post

  22. Looking For OEM TXV

    Started by KQQLCAT, 07-16-2010 11:15 AM
    • Replies: 6
    • Views: 1,982
    codgy
    07-17-2010, 07:01 AM Go to last post

  23. BAC Tower Failures

    Started by Heavyevans, 04-13-2009 10:34 AM
    • Replies: 11
    • Views: 6,570
    cperk
    07-16-2010, 06:51 PM Go to last post

  24. Parallel Compressor Troubleshooting

    Started by mcairrepair, 07-15-2010 04:06 PM
    • Replies: 10
    • Views: 4,992
    redfive
    07-16-2010, 04:21 PM Go to last post

  25. Jumping out Trane and other different type of RTU's?

    Started by Parksy, 07-12-2010 11:34 PM
    1 Attachment(s)
    • Replies: 19
    • Views: 6,748
    VTP99
    07-16-2010, 12:45 AM Go to last post

  26. comfortlink Faq

    Started by bob1234567, 01-21-2008 07:53 PM
    • Replies: 16
    • Views: 7,325
    Cousin Tony
    07-16-2010, 12:34 AM Go to last post

  27. Confused Can Anyone ID This???

    Started by TraneDave, 07-14-2010 02:20 PM
    1 Attachment(s)
    • Replies: 4
    • Views: 1,739
    HVACJOEK
    07-15-2010, 11:06 PM Go to last post

  28. Mueller 691-FAB Duplex Strainer

    Started by JStar, 07-14-2010 08:31 PM
    • Replies: 5
    • Views: 2,647
    JStar
    07-15-2010, 06:42 PM Go to last post

  29. old york heat pump

    Started by drifter99, 08-17-2006 09:35 PM
    • Replies: 4
    • Views: 11,572
    tlebarb
    07-15-2010, 06:16 PM Go to last post

  30. Need a recommendation for a good solid chiller textbook

    Started by Pgh HVAC Teache, 07-13-2010 04:55 PM
    • Replies: 4
    • Views: 1,642
    maustin
    07-14-2010, 02:13 PM Go to last post

  31. Old Mr. Cray Koldfeld

    Started by jtsmech, 07-13-2010 11:45 PM
    • Replies: 0
    • Views: 911
    jtsmech
    07-13-2010, 11:45 PM Go to last post

  32. LOOKING FOR POE OIL INFO

    Started by acjourneyman, 07-13-2010 10:54 PM
    • Replies: 0
    • Views: 956
    acjourneyman
    07-13-2010, 10:54 PM Go to last post

  33. YORK YCAR0230 current sensor reads 50% to high

    Started by Fmech, 07-08-2010 08:51 PM
    • Replies: 13
    • Views: 2,887
    klove
    07-13-2010, 10:31 PM Go to last post

  34. Fair price on used tools and equipment

    Started by Retread, 07-13-2010 09:16 PM
    • Replies: 2
    • Views: 1,134
    jdblack
    07-13-2010, 09:31 PM Go to last post

  35. Century Unit

    Started by JLyoung, 07-13-2010 08:35 PM
    • Replies: 2
    • Views: 1,421
    JLyoung
    07-13-2010, 09:21 PM Go to last post

  36. Reset relays and tattle tales

    Started by hvac248, 07-13-2010 12:40 AM
    • Replies: 6
    • Views: 5,764
    jayguy
    07-13-2010, 07:11 PM Go to last post

  37. O-rings, when to use rubber, when to use teflon

    Started by The Doctor, 07-13-2010 05:52 AM
    • Replies: 2
    • Views: 2,563
    klove
    07-13-2010, 07:01 PM Go to last post

  38. york max e motor bearing lube asap

    Started by racerswil, 07-13-2010 09:28 AM
    • Replies: 1
    • Views: 1,429
    klove
    07-13-2010, 06:51 PM Go to last post

  39. suggested system for laundromat?

    Started by dkliman, 07-08-2010 04:28 PM
    efficient, laundromat, mini-spits, recovery
    • Replies: 6
    • Views: 8,009
    fotofx
    07-12-2010, 10:31 PM Go to last post

  40. Have high subcooling on carrier 5 ton rooftop with the following numbers

    Started by bwd111, 07-12-2010 07:49 PM
    • Replies: 2
    • Views: 1,777
    bwd111
    07-12-2010, 08:14 PM Go to last post

  41. Question Condesate overflow switch for Trane T-Series AHU

    Started by LightGuy48, 07-12-2010 06:53 PM
    • Replies: 0
    • Views: 2,710
    LightGuy48
    07-12-2010, 06:53 PM Go to last post
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