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Threads 51 to 100 of 13546

Forum: AOP Commercial HVAC

FOR EQUIPMENT OWNERS ONLY Questions and discussions regarding Commercial Buildings

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

    Started by Dad, 10-31-2011 07:41 PM
    • Replies: 0
    • Views: 2,926
    Dad
    10-31-2011, 07:41 PM Go to last post

  2. Sticky Thread Sticky: A must read for all members...Who can reply to the AOP area

    Started by Dad, 10-31-2011 07:37 PM
    • Replies: 0
    • Views: 2,410
    Dad
    10-31-2011, 07:37 PM Go to last post

  1. York Chiller (YT) Coupling Damage

    Started by snsici, 05-02-2013 02:26 AM
    • Replies: 4
    • Views: 290
    snsici
    05-03-2013, 05:14 AM Go to last post

  2. York manual for zf090n15n2 ryu

    Started by leaker2, 05-01-2013 10:23 PM
    • Replies: 1
    • Views: 147
    leaker2
    05-02-2013, 09:40 AM Go to last post

  3. Question Mcquay Screw

    Started by chillerguru, 07-28-2004 12:57 AM
    • Replies: 12
    • Views: 1,912
    jpsmith1cm
    05-01-2013, 08:18 PM Go to last post

  4. Copper line sets stolen from 10 units do units need replaced

    Started by hageman6, 04-17-2013 03:13 PM
    • Replies: 3
    • Views: 513
    929rc51
    04-30-2013, 03:32 PM Go to last post

  5. Carrier master/slave communication

    Started by tmkllr, 04-26-2013 04:04 AM
    • Replies: 3
    • Views: 236
    rscamaro
    04-28-2013, 12:18 PM Go to last post

  6. York YT shaft seal replacement procedure?

    Started by fixerup, 04-01-2009 04:34 PM
    2 Pages •
    1 2
    6 Attachment(s)
    • Replies: 19
    • Views: 4,064
    beenthere
    04-28-2013, 06:48 AM Go to last post

  7. 6.5 tons for sub 1000sq ft restaurant?

    Started by evoluzione, 04-23-2013 08:12 AM
    • Replies: 8
    • Views: 450
    beenthere
    04-28-2013, 06:34 AM Go to last post

  8. Typical Chiller Parameters

    Started by Animax007, 04-23-2013 05:48 AM
    • Replies: 2
    • Views: 311
    rscamaro
    04-27-2013, 10:33 PM Go to last post

  9. HVAC Compressor overload question

    Started by m3rheino, 04-25-2013 04:04 PM
    • Replies: 3
    • Views: 288
    ga1279
    04-27-2013, 10:47 AM Go to last post

  10. Question Another 30 GX Chiller tripping

    Started by Sucurro, 04-27-2012 06:32 AM
    2 Pages •
    1 2
    • Replies: 13
    • Views: 2,048
    pecmsg
    04-26-2013, 07:55 AM Go to last post

  11. extract fan motor making noise.

    Started by bellaman, 04-25-2013 10:28 AM
    • Replies: 1
    • Views: 155
    Drazen
    04-25-2013, 01:58 PM Go to last post

  12. Trane GBAS 0-5VDC with Siemens Apogee

    Started by bgmncwj, 04-24-2013 08:37 PM
    • Replies: 0
    • Views: 236
    bgmncwj
    04-24-2013, 08:37 PM Go to last post

  13. Heat/Cool multiple areas without zoning

    Started by rankhornjp, 03-20-2013 12:20 PM
    • Replies: 6
    • Views: 428
    btuhack
    04-22-2013, 05:53 PM Go to last post

  14. Swapping r-22 for r-12

    Started by Bobby67, 03-24-2013 01:52 PM
    • Replies: 12
    • Views: 761
    brian.cornell
    04-21-2013, 08:58 AM Go to last post

  15. Confused Portland OR C store Daikin vs MHI or a new HVAC?

    Started by gbrawley, 04-16-2013 10:03 AM
    • Replies: 2
    • Views: 355
    SkyHeating
    04-20-2013, 01:41 AM Go to last post

  16. carrier 30gxn225 low economizer pressure transducer fail-2

    Started by michael26, 11-03-2009 09:33 PM
    • Replies: 4
    • Views: 941
    jpsmith1cm
    04-19-2013, 07:35 PM Go to last post

  17. Honeywell Subbase question

    Started by twobad, 04-18-2013 10:41 AM
    • Replies: 5
    • Views: 285
    oldhweller
    04-19-2013, 10:31 AM Go to last post

  18. Any HVAC guys near Madison, WI

    Started by dspiffy, 04-19-2013 01:51 AM
    • Replies: 0
    • Views: 223
    dspiffy
    04-19-2013, 01:51 AM Go to last post

  19. Confused Carrier Chiller 30XA0852 Cooler flow switch failure (I am in RED ALERT)

    Started by Abdul shukkoor, 04-16-2013 05:52 AM
    • Replies: 2
    • Views: 299
    rscamaro
    04-18-2013, 08:45 AM Go to last post

  20. Nu-Calgon liquid scale remover turns purple (Neutralizes) fast

    Started by cleancondenser, 04-17-2013 08:23 PM
    • Replies: 0
    • Views: 194
    cleancondenser
    04-17-2013, 08:23 PM Go to last post

  21. Ancient exhaust fan rehab - couple questions please

    Started by cubicdissection, 04-17-2013 11:54 AM
    2 Attachment(s)
    • Replies: 1
    • Views: 185
    pecmsg
    04-17-2013, 12:11 PM Go to last post

  22. This is something related to Ventilation of the Substaion room,help needed

    Started by manjeet singh, 04-11-2013 05:48 AM
    • Replies: 2
    • Views: 249
    manjeet singh
    04-17-2013, 06:05 AM Go to last post

  23. Viconics thermostat

    Started by Dalton92, 04-09-2013 01:00 PM
    1 Attachment(s)
    • Replies: 8
    • Views: 544
    toocoolforschool
    04-11-2013, 11:37 AM Go to last post

  24. external control

    Started by Jeff the Brewer, 04-10-2013 01:14 PM
    • Replies: 0
    • Views: 203
    Jeff the Brewer
    04-10-2013, 01:14 PM Go to last post

  25. Sect. 608 Compliance

    Started by greg r, 04-09-2013 10:53 AM
    • Replies: 1
    • Views: 379
    pecmsg
    04-09-2013, 12:29 PM Go to last post

  26. for Andy Schoen of Sporlan

    Started by jayguy, 08-24-2007 10:21 PM
    2 Pages •
    1 2
    • Replies: 13
    • Views: 1,339
    Pascone10
    04-08-2013, 09:09 PM Go to last post

  27. Strong sewer smell in office building

    Started by bikenbc, 03-21-2013 07:08 PM
    2 Pages •
    1 2
    4 Attachment(s)
    • Replies: 15
    • Views: 994
    beenthere
    04-07-2013, 07:51 PM Go to last post

  28. Saltwater in refer system?

    Started by Captain Mike, 04-03-2013 10:01 PM
    • Replies: 9
    • Views: 420
    jpsmith1cm
    04-04-2013, 08:35 PM Go to last post

  29. Variable Chilled Water Flow conversion

    Started by ewmoore85, 03-18-2013 12:32 PM
    • Replies: 9
    • Views: 517
    jpsmith1cm
    04-03-2013, 07:38 PM Go to last post

  30. Question Rooftop unit - shut down during winter?

    Started by gabrielr, 03-29-2013 12:28 PM
    • Replies: 7
    • Views: 643
    motoguy128
    04-02-2013, 10:31 AM Go to last post

  31. Newbie stuff, but what kind of system do I have?

    Started by PM5K, 03-28-2013 06:16 PM
    • Replies: 5
    • Views: 405
    dandyme
    03-29-2013, 02:20 PM Go to last post

  32. cooling from refrigerated cases?

    Started by Sweetnighter, 03-28-2013 09:04 AM
    • Replies: 1
    • Views: 203
    jpsmith1cm
    03-28-2013, 10:07 PM Go to last post

  33. RAYPAK MVB BOILER

    Started by Jersey Boy, 04-28-2011 03:10 PM
    • Replies: 8
    • Views: 703
    Jersey Boy
    03-28-2013, 08:42 PM Go to last post

  34. Chilled water temp. increased from design temp. and now causing issues

    Started by Buzzard67, 03-28-2013 01:54 PM
    • Replies: 0
    • Views: 228
    Buzzard67
    03-28-2013, 01:54 PM Go to last post

  35. TRANE liquid level tank leak.

    Started by sajidsgn, 03-18-2013 03:54 PM
    • Replies: 2
    • Views: 351
    R123
    03-25-2013, 10:20 PM Go to last post

  36. Smile How to deciper Trane Date Code

    Started by goldteabean, 03-21-2013 07:41 PM
    • Replies: 2
    • Views: 370
    BaldLoonie
    03-22-2013, 06:09 PM Go to last post

  37. Could someone help on sizing an ac unit for my building?

    Started by cajunheat, 03-22-2013 11:55 AM
    • Replies: 2
    • Views: 405
    cajunheat
    03-22-2013, 01:51 PM Go to last post

  38. Chilled water closed loop

    Started by crackerman, 03-17-2013 09:55 AM
    chilled water, chillers
    • Replies: 4
    • Views: 377
    ga1279
    03-21-2013, 06:39 PM Go to last post

  39. Wrench1

    Started by Wrench1, 03-21-2013 01:29 PM
    • Replies: 0
    • Views: 264
    Wrench1
    03-21-2013, 01:29 PM Go to last post

  40. carrier chillers

    Started by dennis golic, 03-20-2013 01:37 PM
    • Replies: 1
    • Views: 325
    rscamaro
    03-20-2013, 09:59 PM Go to last post

  41. Height of air duct inside warehouse

    Started by Hasny, 12-10-2012 08:41 AM
    • Replies: 2
    • Views: 702
    brian.cornell
    03-20-2013, 08:25 PM Go to last post

  42. Confused Phase rotation reversed

    Started by HVACAMAR, 03-13-2013 12:25 PM
    • Replies: 10
    • Views: 794
    brian.cornell
    03-20-2013, 08:19 PM Go to last post

  43. Heat Pump Sizing

    Started by mspmushrooms, 03-19-2013 11:54 PM
    • Replies: 0
    • Views: 300
    mspmushrooms
    03-19-2013, 11:54 PM Go to last post

  44. Trane chiller oil return line iceing up.

    Started by jimmyd5, 03-17-2013 10:21 AM
    • Replies: 4
    • Views: 375
    jpsmith1cm
    03-19-2013, 07:16 PM Go to last post

  45. Confused Managing static pressure

    Started by ctom, 03-17-2013 05:05 PM
    • Replies: 7
    • Views: 421
    genduct
    03-18-2013, 09:21 PM Go to last post

  46. Old Pepsi Machine Compressor

    Started by HOPPEL, 03-13-2013 02:16 PM
    • Replies: 3
    • Views: 617
    rscamaro
    03-16-2013, 10:45 PM Go to last post

  47. Daikin’s VRVIII system

    Started by 50Panhead, 12-07-2012 09:57 AM
    3 Pages •
    1 2 3
    1 Attachment(s)
    • Replies: 26
    • Views: 2,735
    davo
    03-15-2013, 05:33 PM Go to last post

  48. Arrow VAV vs VVT

    Started by dneil75, 01-26-2005 12:39 PM
    2 Pages •
    1 2
    • Replies: 23
    • Views: 27,743
    jpsmith1cm
    03-11-2013, 09:54 PM Go to last post

  49. Taking suggestions for a good direction

    Started by rjk42, 01-19-2013 05:25 PM
    2 Pages •
    1 2
    • Replies: 13
    • Views: 1,096
    timebuilder
    03-09-2013, 06:33 AM Go to last post

  50. CVHF surging

    Started by murphman, 04-12-2009 09:28 PM
    4 Pages •
    1 2 3 4
    1 Attachment(s)
    • Replies: 39
    • Views: 2,894
    Tech Rob
    03-05-2013, 07:21 PM Go to last post
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