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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. Unit heaters with high efficiency boiler?

    Started by MTDZ, 09-28-2022 07:59 PM
    • Replies: 2
    • Views: 954
    icy78
    09-28-2022, 09:47 PM Go to last post

  3. Considerations when replacing 13 Carrier 10 ton RTUs

    Started by Park West, 09-24-2022 05:22 PM
    • Replies: 7
    • Views: 1,148
    Park West
    09-27-2022, 07:01 PM Go to last post

  4. Question Gas Heat Apt Options

    Started by LSProperites, 09-26-2022 02:38 AM
    • Replies: 3
    • Views: 707
    kdean1
    09-26-2022, 01:42 PM Go to last post

  5. Question about propylene glycol

    Started by mel250, 09-23-2022 10:40 AM
    • Replies: 14
    • Views: 997
    ehsx
    09-25-2022, 12:07 PM Go to last post

  6. Computer room cooling - Condenser fan failure

    Started by dschultz307, 09-12-2022 06:05 PM
    • Replies: 12
    • Views: 1,617
    dschultz307
    09-21-2022, 08:11 PM Go to last post

  7. Excool adiabatic cooling systems, opinions sought

    Started by OHDataCenterGuy, 09-21-2022 01:56 PM
    • Replies: 6
    • Views: 713
    rider77
    09-21-2022, 06:47 PM Go to last post

  8. How do I know my Trane RTU meets the stated tonnage?

    Started by shark92651, 09-16-2022 02:22 PM
    1 Attachment(s)
    • Replies: 19
    • Views: 1,229
    shark92651
    09-21-2022, 02:44 PM Go to last post

  9. Location for MAU Temperature Sensor?

    Started by nielkfj, 09-05-2022 09:09 PM
    2 Pages •
    1 2
    1 Attachment(s)
    • Replies: 27
    • Views: 2,780
    nielkfj
    09-21-2022, 12:20 PM Go to last post

  10. Furnace Filter

    Started by airborne, 09-18-2022 04:21 PM
    1 Attachment(s)
    • Replies: 1
    • Views: 728
    Bazooka Joe
    09-18-2022, 04:44 PM Go to last post

  11. Finding a Carrier EXV replacment

    Started by EricL, 09-08-2022 05:17 PM
    • Replies: 1
    • Views: 646
    pecmsg
    09-09-2022, 10:17 AM Go to last post

  12. FX80 JACE Question about setting up Email settings for Trend/alerts

    Started by hvac_99, 04-06-2022 07:11 PM
    • Replies: 1
    • Views: 1,181
    zmanvortex
    09-08-2022, 02:45 PM Go to last post

  13. Dual Pressure Control Switch Replacement

    Started by charliebabb, 09-06-2022 06:34 PM
    2 Attachment(s)
    • Replies: 10
    • Views: 1,180
    pecmsg
    09-07-2022, 08:19 AM Go to last post

  14. Chilled water system losing pressure

    Started by Roagie8611, 09-05-2022 07:55 AM
    • Replies: 2
    • Views: 805
    pecmsg
    09-05-2022, 11:24 AM Go to last post

  15. Trane varitrac controlling non Trane equip

    Started by ac/dc, 12-30-2004 11:07 PM
    • Replies: 5
    • Views: 2,937
    rundawg
    08-31-2022, 01:41 PM Go to last post

  16. Med Temp Refrig Availability

    Started by JbbJbb, 08-21-2022 07:48 PM
    supply chain
    • Replies: 5
    • Views: 955
    aa7483
    08-29-2022, 03:59 PM Go to last post

  17. Duct size

    Started by Hvac_noobie, 08-28-2022 06:09 AM
    • Replies: 2
    • Views: 647
    jbhenergy
    08-28-2022, 07:38 AM Go to last post

  18. Belt question - forced air circulation units

    Started by 508gm1, 08-26-2022 09:07 AM
    3 Attachment(s)
    • Replies: 5
    • Views: 819
    508gm1
    08-26-2022, 01:09 PM Go to last post

  19. Carrier 24AHA4 modern thermostat with 2 set points

    Started by bubba198, 08-23-2022 09:37 AM
    carrier, thermostat
    • Replies: 0
    • Views: 762
    bubba198
    08-23-2022, 09:37 AM Go to last post

  20. Issues after moving compresor and condenser.

    Started by ShopManager, 04-02-2022 03:47 AM
    2 Pages •
    1 2
    2 Attachment(s)
    • Replies: 30
    • Views: 2,802
    ShopManager
    08-18-2022, 10:30 PM Go to last post

  21. Lifetime of chillers and components

    Started by kcho, 08-05-2022 05:12 AM
    • Replies: 11
    • Views: 1,399
    pecmsg
    08-08-2022, 08:30 AM Go to last post

  22. AC not working

    Started by Zihan888, 08-07-2022 01:15 PM
    • Replies: 4
    • Views: 1,347
    ksefan
    08-07-2022, 05:01 PM Go to last post

  23. need some advice

    Started by randyvadd, 07-28-2022 10:19 PM
    • Replies: 2
    • Views: 1,012
    HVAC_Marc
    07-29-2022, 05:33 PM Go to last post

  24. motor starter and overload relays

    Started by Hvac county, 07-28-2022 08:18 AM
    • Replies: 4
    • Views: 1,190
    Hvac county
    07-29-2022, 08:15 AM Go to last post

  25. York 266 Ton Chiller Voltage Faults

    Started by wfowa, 07-27-2022 03:33 PM
    • Replies: 0
    • Views: 961
    wfowa
    07-27-2022, 03:33 PM Go to last post

  26. Envision 1.1 create New Rep/Job

    Started by luiz.o, 07-27-2022 08:00 AM
    • Replies: 0
    • Views: 485
    luiz.o
    07-27-2022, 08:00 AM Go to last post

  27. RTU vs Split System

    Started by RC1992, 07-16-2022 07:22 PM
    • Replies: 12
    • Views: 2,089
    ss120396
    07-18-2022, 01:27 PM Go to last post

  28. Need help finding a replacement fan relay

    Started by cwhense, 07-14-2022 08:22 PM
    • Replies: 14
    • Views: 1,077
    pecmsg
    07-15-2022, 08:25 PM Go to last post

  29. Lightbulb Commercial Techs - Do you ever use "add-a-wire" kits instead of running C-wire?

    Started by bhensey, 06-22-2022 03:02 PM
    • Replies: 1
    • Views: 1,462
    bhensey
    06-22-2022, 03:07 PM Go to last post

  30. Update. Contactor

    Started by VRF, 06-22-2022 12:12 PM
    • Replies: 2
    • Views: 1,015
    pecmsg
    06-22-2022, 02:28 PM Go to last post

  31. Nightclub AC - need help

    Started by TreMiles, 06-18-2022 04:09 PM
    • Replies: 14
    • Views: 1,586
    BaldLoonie
    06-21-2022, 12:13 PM Go to last post

  32. Confused Niagara / Lon device replacement

    Started by LightGuy48, 06-20-2022 11:51 AM
    • Replies: 1
    • Views: 940
    LightGuy48
    06-20-2022, 05:25 PM Go to last post

  33. Floor damp outside walk-in floor panel seams

    Started by milkdemcows, 06-06-2022 04:45 PM
    • Replies: 7
    • Views: 1,361
    pecmsg
    06-07-2022, 10:32 AM Go to last post

  34. Preventing Galvanic Corrosion when repiping a hydronic expansion tank

    Started by ehbowen, 05-29-2022 09:13 AM
    expansion tanks, hydronic, piping techniques 1 Attachment(s)
    • Replies: 11
    • Views: 1,308
    ehbowen
    06-07-2022, 10:15 AM Go to last post

  35. filter replacement schedule

    Started by Hvactalk55, 06-02-2022 01:05 PM
    • Replies: 6
    • Views: 887
    BBeerme
    06-07-2022, 09:24 AM Go to last post

  36. Contactors

    Started by VRF, 06-03-2022 11:39 AM
    • Replies: 14
    • Views: 1,269
    HeyBob
    06-03-2022, 04:19 PM Go to last post

  37. Interview an HVAC business owner

    Started by shmekis, 05-31-2022 07:05 PM
    2 Pages •
    1 2
    1 Attachment(s)
    • Replies: 34
    • Views: 2,064
    BALloyd
    06-03-2022, 11:56 AM Go to last post

  38. noodle scratcher...randomly overcooling walk in cooler

    Started by PharmaPhridge, 03-22-2022 09:53 PM
    2 Pages •
    1 2
    7 Attachment(s)
    • Replies: 33
    • Views: 4,222
    Gary Warren Jr
    05-31-2022, 11:36 AM Go to last post

  39. Commercial Freezer - Brand and Model Recommendation

    Started by Delaina, 05-25-2022 02:25 PM
    commercial refrigeration
    • Replies: 11
    • Views: 1,816
    pecmsg
    05-26-2022, 07:37 AM Go to last post

  40. Highrise Condensate Drain Maintenance

    Started by keiser13, 05-23-2022 11:57 PM
    • Replies: 7
    • Views: 1,080
    keiser13
    05-24-2022, 12:02 PM Go to last post

  41. Commercial RTU Replacement - Can it be a different brand?

    Started by Roboito, 05-11-2022 08:50 PM
    brands, communication, compatibility, controls, replacement, rooftop unit 1 Attachment(s)
    • Replies: 15
    • Views: 2,437
    Roboito
    05-18-2022, 09:37 PM Go to last post
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