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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: 9,013
    10-31-2011, 07:41 PM Go to last post
    • Replies: 0
    • Views: 7,859
    10-31-2011, 07:37 PM Go to last post
  1. Normal Thread Normal Threads

  2. large ductless split a/c

    Started by baub, 03-07-2008 12:04 PM
    • Replies: 10
    • Views: 1,168
    03-16-2008, 10:12 PM Go to last post
  3. How do I price the recovery of R-22

    Started by atc-hvac, 03-16-2008 01:36 PM
    • Replies: 9
    • Views: 1,202
    03-16-2008, 06:19 PM Go to last post
  4. Electrical Room Latent Heat

    Started by swoosh172, 03-13-2008 11:14 PM
    • Replies: 12
    • Views: 1,687
    03-16-2008, 04:38 PM Go to last post
  5. Recurring Problem with New RTU's

    Started by bby, 03-13-2008 08:24 PM
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 3,352
    03-16-2008, 10:41 AM Go to last post
  6. Confused Please Help

    Started by BMX521, 03-13-2008 09:51 PM
    • Replies: 5
    • Views: 739
    03-16-2008, 04:26 AM Go to last post
  7. New Forum for UA 38 members, San Francisco

    Started by little john, 03-16-2008 04:13 AM
    • Replies: 0
    • Views: 503
    03-16-2008, 04:13 AM Go to last post
  8. TechView

    Started by DrumCrazy, 03-13-2008 11:03 PM
    • Replies: 2
    • Views: 808
    03-15-2008, 10:37 PM Go to last post
  9. cvhe oil pressure regulator

    Started by chi 597, 03-13-2008 06:01 PM
    • Replies: 9
    • Views: 1,050
    03-15-2008, 07:17 PM Go to last post
  10. hotshot

    Started by NESS925, 03-15-2008 12:26 PM
    • Replies: 1
    • Views: 630
    03-15-2008, 12:39 PM Go to last post
  11. Cvhe Oil Heater

    Started by supertek65, 03-10-2008 07:44 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 2,678
    03-14-2008, 09:17 PM Go to last post
  12. Cool Oil sample

    Started by chillermafi, 03-14-2008 10:19 AM
    • Replies: 3
    • Views: 934
    03-14-2008, 04:06 PM Go to last post
  13. CVHA anti recycle

    Started by referteacher, 03-09-2008 02:50 PM
    • Replies: 12
    • Views: 1,222
    03-14-2008, 09:55 AM Go to last post
  14. Confused Help! Trane RTDH Cold Condeser Water Start

    Started by Dmeek, 03-11-2008 12:07 PM
    • Replies: 10
    • Views: 2,387
    03-13-2008, 06:40 PM Go to last post
  15. Flue Gas Condensing Temperature

    Started by jogas, 03-11-2008 09:28 PM
    • Replies: 9
    • Views: 6,114
    03-13-2008, 04:47 PM Go to last post
  16. Bomb proof return air grille

    Started by Binderman, 03-13-2008 09:30 AM
    • Replies: 4
    • Views: 616
    03-13-2008, 04:12 PM Go to last post
  17. Modbus Integration of LS CABLES Chillers

    Started by xolas, 03-13-2008 01:00 PM
    • Replies: 0
    • Views: 530
    03-13-2008, 01:00 PM Go to last post
  18. Confused York Model Number Troubles

    Started by Pitts30, 03-12-2008 02:03 PM
    • Replies: 2
    • Views: 1,329
    03-13-2008, 12:50 PM Go to last post
  19. Confused heat pump replacements & seer ratings

    Started by BCTech, 03-12-2008 07:12 PM
    • Replies: 3
    • Views: 527
    03-13-2008, 12:41 PM Go to last post
  20. Ground Source Heat Pump - cost per ton?

    Started by marauderx, 03-12-2008 11:19 AM
    • Replies: 3
    • Views: 1,553
    03-13-2008, 10:00 AM Go to last post
  21. Help - HVAC Universities??

    Started by bigwayne, 03-05-2008 12:14 PM
    • Replies: 8
    • Views: 1,105
    03-13-2008, 09:24 AM Go to last post
  22. Sears/K-Mart maintenace follow-ups/service

    Started by Biblepoet, 02-29-2008 10:09 PM
    • Replies: 11
    • Views: 2,787
    03-13-2008, 02:16 AM Go to last post
  23. Turbocor for YCAS

    Started by hands, 11-09-2007 09:23 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 67
    • Views: 9,492
    03-13-2008, 01:30 AM Go to last post
  24. Can someone explain primary/seconday loops?

    Started by Grawburg, 03-11-2008 09:28 AM
    • Replies: 11
    • Views: 1,406
    03-13-2008, 12:09 AM Go to last post
  25. Question Rebuilding a 15 ton 3 stage heat pump

    Started by ohiohupla, 03-06-2008 06:37 PM
    • Replies: 6
    • Views: 1,081
    03-12-2008, 05:13 PM Go to last post
  26. Confused mac77

    Started by mac77, 03-10-2008 04:35 PM
    • Replies: 3
    • Views: 619
    03-12-2008, 12:02 PM Go to last post
  27. Personal tool list

    Started by blue32, 03-12-2008 12:46 AM
    • Replies: 3
    • Views: 858
    03-12-2008, 11:04 AM Go to last post
  28. Chiller Plant Control

    Started by Ausccn, 03-08-2008 07:55 AM
    2 Pages
    1 2
    • Replies: 14
    • Views: 2,197
    03-12-2008, 05:37 AM Go to last post
  29. Confused Circuit breakers

    Started by mruiz, 03-11-2008 06:25 PM
    • Replies: 2
    • Views: 619
    03-11-2008, 06:35 PM Go to last post
  30. Confused Mr Slim ductless a/c-problem

    Started by 9yriceman, 03-10-2008 10:23 PM
    • Replies: 2
    • Views: 717
    03-11-2008, 06:16 PM Go to last post
  31. Lochinvar CHN0990 Burner Problem

    Started by jogas, 03-01-2008 10:26 AM
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 6,090
    03-11-2008, 05:23 PM Go to last post
  32. Building pressure

    Started by soundbalance, 02-26-2008 02:53 AM
    2 Pages
    1 2
    • Replies: 16
    • Views: 2,513
    03-11-2008, 12:10 PM Go to last post
  33. WSHP wet side economizers

    Started by soundbalance, 03-06-2008 07:04 PM
    • Replies: 8
    • Views: 1,821
    03-11-2008, 06:06 AM Go to last post
  34. Carrier condenser coil issues

    Started by Bald Menace, 01-08-2007 11:26 PM
    • Replies: 12
    • Views: 8,797
    03-10-2008, 11:39 PM Go to last post
    • Replies: 5
    • Views: 1,723
    03-10-2008, 09:38 PM Go to last post
  35. Absorbers

    Started by trane_stud, 03-03-2008 12:08 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 4,551
    03-10-2008, 08:48 PM Go to last post
  36. Condensate Pan Coatings ?

    Started by ohiohupla, 03-10-2008 03:36 PM
    • Replies: 6
    • Views: 1,551
    03-10-2008, 08:46 PM Go to last post
  37. C/U air flow discharge - limited static

    Started by MHIAU, 03-06-2008 01:46 AM
    • Replies: 3
    • Views: 551
    03-10-2008, 07:33 PM Go to last post
  38. Steam from rooftops

    Started by DCN289, 03-07-2008 11:30 AM
    • Replies: 11
    • Views: 918
    03-10-2008, 01:49 PM Go to last post
  39. Lcha York Chiller

    Started by ala_elmac, 03-10-2008 10:48 AM
    • Replies: 0
    • Views: 1,411
    03-10-2008, 10:48 AM Go to last post
  40. Amount of Exhaust Air

    Started by AtoZhvac, 03-05-2008 05:19 PM
    • Replies: 7
    • Views: 1,510
    03-10-2008, 08:34 AM Go to last post
  41. Red face is there work in sc

    Started by gmc3500, 03-09-2008 09:27 PM
    • Replies: 2
    • Views: 605
    03-10-2008, 07:46 AM Go to last post
  42. talking about transformers!

    Started by maxster, 03-09-2008 12:12 PM
    • Replies: 2
    • Views: 810
    03-09-2008, 09:43 PM Go to last post
  43. Residential heat/ac for laboratory use

    Started by cheese9988, 03-07-2008 12:55 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 1,297
    03-09-2008, 07:31 PM Go to last post
  44. Question R407c Mc Quay

    Started by mrhvacmechanic, 03-04-2008 04:20 PM
    • Replies: 8
    • Views: 1,014
    03-09-2008, 03:16 PM Go to last post
  45. Why would you use a preforated supply grille?

    Started by Grawburg, 03-04-2008 05:16 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 1,542
    03-09-2008, 06:58 AM Go to last post
  46. carrier closed loop

    Started by harley4dad, 03-06-2008 09:52 PM
    • Replies: 2
    • Views: 671
    03-08-2008, 09:26 PM Go to last post
  47. davenet

    Started by b-cool, 03-08-2008 02:56 PM
    • Replies: 3
    • Views: 1,453
    03-08-2008, 03:38 PM Go to last post
  48. All cooling~no heat

    Started by DCN289, 03-07-2008 11:37 AM
    • Replies: 10
    • Views: 928
    03-08-2008, 12:27 PM Go to last post
  49. Wdc 087

    Started by hvacr, 03-06-2008 09:08 PM
    • Replies: 9
    • Views: 1,028
    03-08-2008, 09:11 AM Go to last post
  50. SMACNA Leakage Class

    Started by Gib's Son, 03-07-2008 11:43 AM
    • Replies: 3
    • Views: 9,101
    03-08-2008, 02:00 AM Go to last post

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