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Type: Posts; User: burto

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  1. Replies
    22
    Views
    990

    hey guys, went back to job site to do...

    hey guys,
    went back to job site to do some work and took another peek at that compressor.
    unit has been off since my last visit. ohmed out compressor and it was open.
    used my supco...
  2. Replies
    22
    Views
    990

    I did check the wires and there was no short to...

    I did check the wires and there was no short to ground. right when I plug in compressor it trips instantly. I wish I had my clamp meter on to see if it was LRA , it was Friday at the end of the day.
  3. Replies
    22
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    990

    will give it a try. indoor blower was going in...

    will give it a try. indoor blower was going in right direction though, maybe factory mistake.
  4. Replies
    22
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    990

    compressor was cold. 3 phase so no starting...

    compressor was cold. 3 phase so no starting components.
  5. Replies
    22
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    990

    btw not getting short to ground.

    btw not getting short to ground.
  6. Replies
    22
    Views
    990

    new lennox rtu tripping breaker

    hey guys,
    just started up eight new lennox rtus. m# ZGA072S4BH1Y s# 5615G02133
    one of the units trips the breaker when the compressor tries to start. when I ohm out
    the compressor all the...
  7. Its good you want to dabble in controls a little...

    Its good you want to dabble in controls a little but I wouldn't stress about it, its tough enough to stay current in the mechanical side of things.
  8. Replies
    11
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    1,114

    OK board stays, and thanks for advice. I had...

    OK board stays, and thanks for advice. I had replaced old contactors and pressures switches ( some had been jumped out) so thought I was good to go but will keep at it.
  9. Replies
    11
    Views
    1,114

    bypassing expensive control boards on rtu's

    Hi guys. Was wondering if anyone ever bypasses those expensive control boards particularly the ones on the older tranes and carriers. Replaced a board on a trane this week at $ our cost and the...
  10. Replies
    6
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    644

    OK, I was under the impression wire nuts do crazy...

    OK, I was under the impression wire nuts do crazy things to the signal. Good to know.
  11. Replies
    6
    Views
    644

    relocating controls on old Parker System

    Hey guys

    My company wants me to relocate a bunch of t- stats,bypass stats and a bunch more controls associated with the Parker System. As soon as I saw it I knew we should call our control...
  12. Thread: A/C renew

    by burto
    Replies
    17
    Views
    3,771

    I went to johnstones to get some and a 4 oz....

    I went to johnstones to get some and a 4 oz. bottle is $106 . you got to kidding me
  13. Replies
    9
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    960

    installing humidifires on second floors

    the company i work for has gotten into residential to keep business going and is doing a great job. one thing
    that scares me is installing humidifires on second floors. some of these houses look...
  14. remember when I was cutting my teeth we did a lot...

    remember when I was cutting my teeth we did a lot of bar rooms and restaurants and would carry a jug of refrigerant and just blast out condensing units. using a map book was a drag especially trying...
  15. Replies
    4
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    583

    its for a hot water loop in a wicked dated...

    its for a hot water loop in a wicked dated apartment building. there's a old carrier chiller for the chilled water in summer
  16. Replies
    28
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    4,296

    show us some pics

    show us some pics
  17. Replies
    4
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    583

    economite conversion burner sighting

    was cutting thru mechanical room and saw a nice surprise. was amazed how well they where still running.
  18. Replies
    2
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    767

    Ancient HB Smith #34 Boiler

    Have a boiler that heats up a bunch of suspended unit heaters. I wish I took a pic of the steam traps. I think their bucket traps. Are theses the only thing that returns the condensate to the boiler...
  19. Thread: sweet bee hive

    by burto
    Replies
    9
    Views
    2,933

    sweet bee hive

    Has anyone come across these lately. Always a nice surprise after taking off a panel.
  20. Replies
    11
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    1,629

    hadn't seen them but will definitely try thanks....

    hadn't seen them but will definitely try thanks. like the idea of a different manufacturer.
  21. Replies
    11
    Views
    1,629

    noisey ductless split pumps

    513491513501513511513521

    had to install a bunch of these pumps and have had nothing but trouble.my biggest...
  22. Replies
    8
    Views
    1,008

    Put one in recently on a motion picture movie...

    Put one in recently on a motion picture movie trailer {115 volt model} and was very impressed. Indoor section was very light and the condencer seemed well thought out. I haven't had to call tech...
  23. Replies
    14
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    2,008

    I've had trouble with those CLO's. If all else...

    I've had trouble with those CLO's. If all else fails if you jump out the CLO it still uses the safties but wont lock out.
  24. Replies
    5
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    874

    good idea I will look them up, a second opinion...

    good idea I will look them up, a second opinion would be great. wish I could have gotten that bypass going.
  25. Replies
    3
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    579

    the times there a changing vfd's

    trying to stay current in this field is like a part time job. been hanging in there my whole career but knew these vfd's would get me eventually. took a day class from Honeywell but that's not...
  26. Replies
    5
    Views
    874

    its about 15 yrs old and we just inherited it....

    its about 15 yrs old and we just inherited it. tried powering on and off but nothing. not much you can do when it goes blank. the control side of vfd"s has always giving me trouble .the whole speed...
  27. Replies
    5
    Views
    874

    vfd with blank display on voyager

    hi guys, I have a trane m-TED600AEBE s-C99H14449M rtu. vfd has a blank display and the fault light is on. it has a bypass but cant even get that to come on. the vfd is a telemecanique m-atv66d16m2...
  28. Replies
    14
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    2,013

    475251475261 What a difference with the new...

    475251475261

    What a difference with the new burner plate.
  29. Replies
    14
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    2,013

    Ignitor and inducer are good.Will check orifice...

    Ignitor and inducer are good.Will check orifice tomorrow. Bringing out new burner plate.Never changed one before,hope that's it.
  30. Replies
    14
    Views
    2,013

    trane ych120 backfiring badly

    Hi Guys, Worked on a M- YCH120B3HODB S- J4B102135D RTU that when it starts it almost explodes.Once it gets going everything checks out fine. pressure is -.20 . The burner plate with...
  31. Replies
    0
    Views
    411

    old honeywell floating t-stat question

    Hi Guys,

    I have some old fan powered boxes with electric reheat and some vav`s with straight cooling. They were controlled with honeywells T641A1003 and T874C1018 floating...
  32. Replies
    1
    Views
    587

    Repairing a Testo 550

    Hi guys, I have a Testo 550 that just started leaking internally on the high side.Has anyone ever ran into this and has anyone ever tried opening their 550 up?
  33. checking charge on aircooled heat pumps in winter

    Hi guys, I can remember checking the refrigerant on air cooled split heat pumps in winter with the factory charge chart
    they used to print on the inside of the panels. Besides weighing in the...
  34. Replies
    19
    Views
    2,635

    Don't know why but when a condencer fan motor...

    Don't know why but when a condencer fan motor goes on a aaon your better off getting repl. directly from aaon. Had a summer when I tried everything then someone from talk straightened me out,almost a...
  35. Replies
    0
    Views
    724

    BAC COOLING TOWER

    Hey Guys,
    Have a BAC Cooling Tower M#VTO-102-MMXR S#U013301602 Center bearing is making some pretty good noise.My question is do i have to rebuild entire fan section or can i just do center...
  36. Replies
    8
    Views
    2,239

    Got it,If I put in 300psi and return in a day or...

    Got it,If I put in 300psi and return in a day or two and temps are ten degrees of each other,what do you think 5psi give or take?
  37. Replies
    8
    Views
    2,239

    Leak testing with nitrogen

    I always thought nitrogen stayed the same pressure in a system even if ambient temps change from one day to another.Do you guys see this to be true?
  38. Thread: blown 5 amp fuse

    by burto
    Replies
    12
    Views
    5,062

    Bet its the economizer.If the factory molex style...

    Bet its the economizer.If the factory molex style plug is still there you could bypass it for now.
  39. Replies
    8
    Views
    1,103

    Usually when I see a bypass from the supply to...

    Usually when I see a bypass from the supply to help control static it just dumps up in the ceiling,not connected to return,doesnt seem very efficient though.
  40. Replies
    11
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    2,465

    ICM makes a nice Leed/Lag control thats easy to...

    ICM makes a nice Leed/Lag control thats easy to install,havnt had any trouble yet.
  41. Replies
    6
    Views
    1,520

    I used to like using the old Ranco pres. controls...

    I used to like using the old Ranco pres. controls to control pressures but dont see manafacturers recommending them anymore.
  42. Replies
    6
    Views
    1,520

    motor master install

    Hey guys, Have some basic A C condencing units and where installing motor-masters to control head preasure. Was wondering who leaves the factory sleeve bearing motors in and who puts in ball bearings...
  43. Replies
    14
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    3,344

    that makes alittle sence.was working in a school...

    that makes alittle sence.was working in a school and the control guy said on his end (building automaition)they dont ground the common,something to do with interference.
  44. Replies
    14
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    3,344

    floating ground ?

    hey guys, been a hvac tech for awhile but never heard of this before.if i come across a 24 volt transformer in say a rtu one side of secondary is grounded,in the control world sometimes you dont have...
  45. Thread: trane tam7 ahu

    by burto
    Replies
    1
    Views
    950

    trane tam7 ahu

    model-tam7a0c42h31sba serial-12212n8tav

    was wondering if this unit comes with any info on the computer board.
    tried starting one late friday and noticed board has lots of l.e.ds incuding police...
  46. Replies
    2
    Views
    842

    having all that stuff in the attic would be kind...

    having all that stuff in the attic would be kind of noisey,any chance of
    zoning the basement unit?
  47. Replies
    75
    Views
    12,583

    verbally should be fine,leaving a notice is...

    verbally should be fine,leaving a notice is good,dont burn any bridges
    its a small a/c world out there.
  48. Replies
    9
    Views
    2,988

    definely still out there ,ran into a m# 800 n 33...

    definely still out there ,ran into a m# 800 n 33 today.
    800k output, and purring like a kitten.
  49. Replies
    12
    Views
    1,641

    jinxed myself, came back in tonite. will try all...

    jinxed myself, came back in tonite.
    will try all these suggestions tomorrow.:gah:
  50. Replies
    12
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    1,641

    ended up putting one of the large white-rogers...

    ended up putting one of the large white-rogers universal glow coils in
    and so far so good.
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