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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: 6,896
    10-31-2011, 07:41 PM Go to last post
    • Replies: 0
    • Views: 5,945
    10-31-2011, 07:37 PM Go to last post
  1. Normal Thread Normal Threads

  2. Hmm COMFORT AIR HP R410A PRESS PROBLEMS

    Started by mrhvacmechanic, 03-02-2011 10:45 PM
    • Replies: 7
    • Views: 2,066
    03-11-2011, 11:54 PM Go to last post
  3. ABB basin heater controller

    Started by nun, 03-11-2011 11:12 PM
    • Replies: 0
    • Views: 457
    03-11-2011, 11:12 PM Go to last post
  4. Swivel Duct Elbows

    Started by Lash, 03-11-2011 06:59 PM
    • Replies: 0
    • Views: 1,500
    03-11-2011, 06:59 PM Go to last post
  5. Nortec Humidifier

    Started by Truck43, 01-28-2009 01:59 PM
    • Replies: 11
    • Views: 3,840
    03-11-2011, 05:43 PM Go to last post
  6. Commercial Kitchen: Make-up Air

    Started by Green_Energy, 03-10-2011 11:21 AM
    • Replies: 4
    • Views: 1,565
    03-11-2011, 05:28 PM Go to last post
  7. Johnson (York) IOM Manual

    Started by dmd-marc, 03-10-2011 06:43 PM
    • Replies: 4
    • Views: 1,243
    03-11-2011, 05:15 PM Go to last post
  8. TRANE VOYAGER RTU - CONDENSATE IN CONTROLS PANEL

    Started by macmec, 03-09-2011 12:10 PM
    • Replies: 10
    • Views: 1,503
    03-10-2011, 11:29 PM Go to last post
  9. 12.5ton lennox 11 years old 2 superh 2 subc

    Started by BatesTech, 03-09-2011 09:27 PM
    • Replies: 9
    • Views: 833
    03-10-2011, 10:40 PM Go to last post
  10. make up air with heat

    Started by ISD, 03-10-2011 09:53 PM
    • Replies: 3
    • Views: 815
    03-10-2011, 10:12 PM Go to last post
  11. carel humidifier....leaking ducts....HELP!

    Started by hmscool, 03-08-2011 06:29 PM
    • Replies: 5
    • Views: 1,238
    03-10-2011, 08:46 PM Go to last post
  12. York compressor Z style

    Started by brztech, 03-09-2011 10:30 AM
    • Replies: 3
    • Views: 1,007
    03-10-2011, 03:34 PM Go to last post
  13. Chiller Trouble

    Started by wormy, 05-07-2009 10:34 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 2,390
    03-10-2011, 03:20 PM Go to last post
  14. hvac replacement

    Started by tavos7, 01-26-2011 05:52 PM
    • Replies: 6
    • Views: 920
    03-10-2011, 01:53 PM Go to last post
  15. COMMERCIAL PROPOSAL SOFTWARE

    Started by dholladay, 02-17-2009 07:34 PM
    • Replies: 5
    • Views: 2,193
    03-10-2011, 09:43 AM Go to last post
  16. Need a Thermostat

    Started by ascj, 03-09-2011 06:21 PM
    • Replies: 5
    • Views: 825
    03-10-2011, 01:37 AM Go to last post
  17. Question CAREL Mtr Protector resistance values

    Started by mrhvacmechanic, 03-08-2011 10:44 PM
    • Replies: 3
    • Views: 644
    03-10-2011, 01:11 AM Go to last post
  18. VAV K-Factor

    Started by leoxxl, 03-09-2011 11:20 PM
    • Replies: 1
    • Views: 973
    03-10-2011, 12:45 AM Go to last post
  19. Frown Hole in Scroll Housing

    Started by ReferTek, 03-09-2011 12:09 AM
    carrier, copeland, leak, scroll
    • Replies: 6
    • Views: 1,770
    03-09-2011, 11:58 PM Go to last post
  20. Obsolete?

    Started by airpro71, 03-05-2011 08:26 PM
    • Replies: 5
    • Views: 875
    03-09-2011, 10:38 PM Go to last post
  21. Yokagawa GE Leak Detector H-10 G

    Started by al o, 03-07-2011 06:31 PM
    • Replies: 3
    • Views: 1,008
    03-09-2011, 07:53 PM Go to last post
  22. Enviro Tech

    Started by ascj, 02-28-2011 06:25 PM
    • Replies: 9
    • Views: 2,637
    03-09-2011, 04:29 PM Go to last post
  23. WaterFurnace Heat Pump Woes

    Started by blabath, 02-24-2011 01:28 AM
    2 Pages
    1 2
    • Replies: 16
    • Views: 2,341
    03-09-2011, 01:36 PM Go to last post
  24. Repeated broken hot surface ignitors on Lochinvar

    Started by Lugs, 01-08-2010 06:50 PM
    2 Pages
    1 2
    • Replies: 22
    • Views: 5,987
    03-09-2011, 11:58 AM Go to last post
  25. Question 22 substitutes

    Started by Randy S., 03-05-2011 08:42 PM
    • Replies: 9
    • Views: 1,850
    03-09-2011, 06:18 AM Go to last post
  26. Average KW/hr calculation on Trane Voyager 25 Tons

    Started by atamai, 03-01-2011 12:53 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 2,830
    03-08-2011, 03:50 PM Go to last post
  27. Molex plug tools

    Started by Dilp172, 03-04-2011 03:05 PM
    • Replies: 4
    • Views: 1,258
    03-08-2011, 12:59 PM Go to last post
  28. Carrier "Comfort View" HVAC control software

    Started by bwd111, 03-07-2011 06:23 PM
    • Replies: 2
    • Views: 1,886
    03-08-2011, 11:17 AM Go to last post
  29. Confused Carrier 50TJ low voltage Issue

    Started by coolitdown, 03-07-2011 09:33 PM
    • Replies: 3
    • Views: 1,458
    03-08-2011, 08:31 AM Go to last post
  30. propane applications

    Started by hvac1966, 01-25-2011 06:10 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 1,622
    03-07-2011, 07:52 PM Go to last post
  31. control voltage transformer nuisance tripping

    Started by carwel, 02-14-2011 09:19 PM
    • Replies: 6
    • Views: 2,302
    03-07-2011, 09:00 AM Go to last post
  32. Liebert Mini Mate and Humidity Issues

    Started by turbo50mike, 03-05-2011 10:56 AM
    2 Pages
    1 2
    • Replies: 13
    • Views: 2,916
    03-06-2011, 02:37 PM Go to last post
  33. w 7100a Discharge air controller

    Started by james mo, 09-15-2008 04:44 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 1,823
    03-06-2011, 10:14 AM Go to last post
    • Replies: 9
    • Views: 2,799
    03-05-2011, 11:32 PM Go to last post
  34. Cleaver Brooks CBH

    Started by Clauster, 02-14-2011 10:08 PM
    • Replies: 6
    • Views: 1,536
    03-05-2011, 11:24 PM Go to last post
  35. Carrier 30GT-080 Chiller controls question

    Started by elvis66, 03-02-2011 05:59 PM
    • Replies: 3
    • Views: 1,860
    03-04-2011, 10:09 PM Go to last post
  36. Servicing R11 and R134a Machines

    Started by Catfly, 02-17-2011 12:36 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 2,382
    03-04-2011, 09:02 PM Go to last post
  37. Propylene or ethylene glycol?

    Started by hvac n-j-near, 11-30-2010 03:23 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 4,240
    03-03-2011, 10:33 PM Go to last post
  38. ICP 15 Ton Keeps blowing fuses

    Started by dagarair, 02-26-2011 11:50 AM
    • Replies: 9
    • Views: 1,598
    03-03-2011, 10:20 PM Go to last post
  39. 3 phase Vs single phase package unit

    Started by gevans, 03-02-2011 04:34 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 4,848
    03-03-2011, 10:20 PM Go to last post
    • Replies: 1
    • Views: 565
    03-03-2011, 10:10 PM Go to last post
  40. heater contactor always closed

    Started by guysmilely, 01-27-2011 10:25 PM
    • Replies: 8
    • Views: 1,122
    03-03-2011, 08:33 PM Go to last post
  41. Removal of Copeland compressor sight glass

    Started by Joelfu27, 03-03-2011 12:55 PM
    • Replies: 4
    • Views: 2,312
    03-03-2011, 04:00 PM Go to last post
  42. Confused Subcooling- proper measurement

    Started by Mikeymoe, 03-01-2011 11:48 AM
    • Replies: 12
    • Views: 8,099
    03-03-2011, 01:02 PM Go to last post
  43. oem vs. remanufactured compressors

    Started by jabeu, 02-18-2011 11:21 PM
    • Replies: 9
    • Views: 1,687
    03-02-2011, 11:22 PM Go to last post
  44. Question Any Rack Tech Convert to Chiller Techs?

    Started by 94blowncobra, 03-02-2011 09:55 PM
    • Replies: 0
    • Views: 425
    03-02-2011, 09:55 PM Go to last post
  45. Hot leg

    Started by airdocc, 03-03-2009 09:01 PM
    5 Pages
    1 2 3 4 5
    • Replies: 56
    • Views: 5,461
    03-02-2011, 09:01 PM Go to last post
  46. Brushing Tubes

    Started by gary254, 05-21-2009 05:13 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 2,104
    03-02-2011, 04:46 PM Go to last post
  47. Ice in cooling tower

    Started by incontrol, 12-12-2010 06:05 PM
    • Replies: 10
    • Views: 2,445
    03-02-2011, 04:01 PM Go to last post
  48. Question Trane Model Question

    Started by coffee4me, 08-18-2006 09:10 AM
    • Replies: 3
    • Views: 4,154
    03-02-2011, 01:32 PM Go to last post
    • Replies: 3
    • Views: 894
    03-02-2011, 01:16 AM Go to last post

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