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Type: Posts; User: combustioneer

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  1. Replies
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    definitely the sparking neutral. open neutrals...

    definitely the sparking neutral. open neutrals are tough because you'll always get voltage to ground, but the eqpt uses neutral. shiny.
  2. used to butt in to some sketchy conversations in...

    used to butt in to some sketchy conversations in my tip&ring (telephone) days. clicked the line and was always amused by the hasty hangups. you have my sympathy. would rather face off with the...
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    google rib relay. self-contained, multi-voltage...

    google rib relay. self-contained, multi-voltage by tap. no/nc.
  4. Replies
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    yeah, change the cap, and the contactor... AND...

    yeah, change the cap, and the contactor... AND add a pound or two... just don't wash that coil in case the mud is plugging a leak!
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    don't contaminate your ductwork with smoke. are...

    don't contaminate your ductwork with smoke. are the returns ducted or run through joist/stud bays?
  6. water pipe could be a worse ground than none. ...

    water pipe could be a worse ground than none. have an electrician confirm ground through the line voltage supply ground back to the breaker panel and proper grounding of the panel. and... refer...
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    we had an apartment house meter locked for lack...

    we had an apartment house meter locked for lack of bonding on a csst system. they now give a 30-day notice .
  8. recommend that the tech install a threaded plug. ...

    recommend that the tech install a threaded plug. if the tape comes loose or is punctured, gasses are released under positive pressure. notice that modcon boilers provide a threaded cap or plug in...
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    421

    the clean effects unit is usually powered or...

    the clean effects unit is usually powered or switched on/off by the furnace control board. the two units were likely wired from different sources causing them to shut down at different times. find...
  10. Replies
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    both rusted and cracked. seize the opportunity!

    both rusted and cracked. seize the opportunity!
  11. Replies
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    great point - a lot of our 'snow birds' proudly...

    great point - a lot of our 'snow birds' proudly drop the temp to 45 or 50. now i have a better argument for them.
  12. Replies
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    beautiful and well-maintained!

    beautiful and well-maintained!
  13. the point is made in steam heating literature...

    the point is made in steam heating literature that water needs to be heated to 180* for oxygen to come out of solution. the closed loop side of your system will never get near that while being...
  14. Replies
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    1,445

    +1 hvac marc - common mistake is to re-install...

    +1 hvac marc - common mistake is to re-install the flapper without the washer in the middle so it doesn't... flap. i have never "heard" the spark on a pulse, so i would guess that you spark is not...
  15. whatever the eventual repair is, the source of...

    whatever the eventual repair is, the source of the problem is oxygen that is not being purged from a low temp loop with a steel pump. consider having a brass or stainless pump installed along with...
  16. Replies
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    monitor supply and manifold pressure... got bit...

    monitor supply and manifold pressure... got bit this weekend by a bad regulator on the utility meter, thought it was the GV.
  17. Replies
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    1,895

    clean and careful!

    clean and careful!
  18. I interviewed with Perot Systems in 1986-or-so...

    I interviewed with Perot Systems in 1986-or-so for data comm. parting words were you'll have to shave your beard, but we now allow a mustache... have worn a beard for 33 years with no ill effect on...
  19. i plan to do a simple hvac talk and demo for the...

    i plan to do a simple hvac talk and demo for the electrical class at the high school votech. instructor and my boss are very supportive... will include this topic.
  20. code or home inspection probably insisted on...

    code or home inspection probably insisted on sealing the ductwork! keep some professional grade duct tape handy and fresh batteries in the CO detectors...
  21. Replies
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    506

    only matters if HO leaves it in for 4 years and...

    only matters if HO leaves it in for 4 years and it needs the bottle cap or mesh to keep it from collapsing...
  22. Replies
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    528

    success as a tech requires customer skills,...

    success as a tech requires customer skills, troubleshooting skills, knowledge of national and local codes, and a broad knowledge of systems. financial security as a tech requires years of honing...
  23. Replies
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    1,450

    had to be the loose stakons...

    had to be the loose stakons...
  24. Replies
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    1,170

    already had no heat in august... and a no AC...

    already had no heat in august... and a no AC report today! put the fork in a 14yo miller CMF and a 41yo w/m 65 series firing several years without a backwall. need the spiffs to pay for new laundry...
  25. Replies
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    typically no reset on a cast iron gas boiler. +1...

    typically no reset on a cast iron gas boiler. +1 with rider, get a licensed gas service tech to get it started.
  26. sound like you figured it out... boiler control...

    sound like you figured it out... boiler control would work better installed in the casting instead of letting the temp spike to 220! not being able to flow will cause temp to spike, boiler control...
  27. Replies
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    buyer beware. thanks for the post, will talk it...

    buyer beware. thanks for the post, will talk it up at the shop, haven't seen this in our area. without talking $$$, i'm guessing this would have been a much more expensive job than mentioned by OP?
  28. Replies
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    residential = 8 foot folding ladder at most. ...

    residential = 8 foot folding ladder at most. commercial = 32 ft extension in 5* snowstorm or 95* monsoon. we all do both in my shop in NH. rooftop controls will be more complex, but really just an...
  29. Replies
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    Cannot upload pictures to album in my profile. ...

    Cannot upload pictures to album in my profile. all jpeg under 1.9MB limit. i get a counter at lower left indicating a download is proceeding, then get waiting for hvactalk.com, then no file info. ...
  30. Replies
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    apollo 5010 in NC

    i'm in nh. my buddy in Cary, NC bought a 1996 house with an apollo 5010 standing-pilot/chimney vented dhw tank which feeds a hydrocoil. does this tank have space heating taps like the bradford...
  31. You need some static pressure to create contact...

    You need some static pressure to create contact with the coil. Easily read with a manometer, then your tech can add ducting and registers.
  32. Copper trap may still be plugged. Appears that...

    Copper trap may still be plugged. Appears that evap is on the supply side of blower. Repipe with pvc using union, no trap. Properly set up with a union you can blow down or vac in both directions....
  33. Replies
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    456

    Just rust.

    Just rust.
  34. Replies
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    condensate killed the furnace

    call to replace control board on a nordyne kg6 90+ furnace - would not run blower, coil had iced up. swapped board, heat won't run - 3 blinks for pressure sw closed before inducer starts. now the...
  35. Replies
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    breaking the C terminal will darken a common...

    breaking the C terminal will darken a common powered stat without batteries. if the batteries are still in, the stat will still work and you soak the ceiling . if you are breaking the C lead to the...
  36. Replies
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    duct hood and dampers. they need to follow up...

    duct hood and dampers. they need to follow up with duct balancing. look in your installation manual that the very capable installation crew left on site per code and good practice. there should be...
  37. Replies
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    3 calls to get it right on an old goodman 2 ton. ...

    3 calls to get it right on an old goodman 2 ton. blade rusted on. tech picked up generic motor and blade, installed, washed coil, called it good. second tech condemns new motor as overamped, no...
  38. Moisture in the coil is due to condensate left...

    Moisture in the coil is due to condensate left over when the room reaches temp and the blower shuts off. If it were coming from the lineset, it might just run out the drain, or, worst case, dribble...
  39. Condensate is normal on the larger copper vapor...

    Condensate is normal on the larger copper vapor line and may be pooling at the low point of the insulation. The condensate drain is separate from the refrigerant lines. The mist and odor indicate...
  40. Replies
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    R to kill air handler and condensor. Y to kill...

    R to kill air handler and condensor. Y to kill condensor and leave blower running. If you have a condensing gas burner, breaking r will kill the heat, bad policy up north...
  41. Replies
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    too high a blower speed will cause whistling when...

    too high a blower speed will cause whistling when it is trying to move more air than the return duct can provide as air pulls in through any little hole, filter rack, etc.
  42. Replies
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    curious how you will accomplish air exchange just...

    curious how you will accomplish air exchange just using the furnace? i am not a duct guy...
  43. Replies
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    "the thermostat is an on-off switch, not a gas...

    "the thermostat is an on-off switch, not a gas pedal... set where you are normally comfortable and go to the mall for a few hours..."
  44. Replies
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    pulled several 4 year old filters this season...

    pulled several 4 year old filters this season...
  45. Replies
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    still 80's in nh, but it has slowed down enough...

    still 80's in nh, but it has slowed down enough for me to return to oil pms. oh joy.
  46. Replies
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    341

    not a hp guy, but curious... are there two wires...

    not a hp guy, but curious... are there two wires on your tstat aux terminal - one from the oil burner and one from the hp?
  47. great job. on-demand DHW next?

    great job. on-demand DHW next?
  48. deleted.

    deleted.
  49. critical question as firecontrol asked, #1 is the...

    critical question as firecontrol asked, #1 is the indoor blower shutting off as well as the outdoor unit? #2 or is the outdoor unit shutting down while the blower continues to run? #1 would be the...
  50. Replies
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    just joking about the humidity... my coldest...

    just joking about the humidity... my coldest winter was a july in san francisco, as a famous author ance said. used to watch it roll in at 3pm from my office near candlestick
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