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  1. Thread: Delta t

    by hvacmike85
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    2
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    499

    prob wouldn't change much either way but shut the...

    prob wouldn't change much either way but shut the bypass damper... Done
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    879

    I had a make-up air keep tripping about once...

    I had a make-up air keep tripping about once every couple weeks or so. It had the internal breaker switch on it. I thought great this oughta be fun, but to start I put a new 75va xfmer (orig was 40)...
  3. Don't count out the possibility of getting...

    Don't count out the possibility of getting another bad board, if it were me I'd get another board and the harness. I also wouldn't count out the module either, maybe with the harness being plugged in...
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    2,377

    Get a meter with a mfd setting, you wont look...

    Get a meter with a mfd setting, you wont look back.. My fieldpiece does it and their not the most expensive but professional grade for sure. Then you can buy other attachments like monometer,...
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    762

    I put a stat on already, I think when I go back...

    I put a stat on already, I think when I go back I'll put a 75va back in, and change wire, contactor, and fan relay. that's gotta do it!
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    12
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    762

    first time 24v side, second time common side....

    first time 24v side, second time common side. that's another thing throwin me, I cant recall ever havin a common side of a xfmer bad usually 24v side
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    12
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    762

    transformer slow blows?

    I got a carrier A/h keeps blowing transformers about one a month, older unit not my install, first time called noticed several old transformers sitting on a shelf next to furnace thought hum that's...
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    1,070

    transformer was blown no voltage so still doesnt...

    transformer was blown no voltage so still doesnt explain the voltage, was my first thought also
  9. Replies
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    1,070

    that wasnt the case or I woudnt be on here...

    that wasnt the case or I woudnt be on here asking, all wiring was in tact
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    1,070

    dont see that as a possibility,theres no low...

    dont see that as a possibility,theres no low voltage wiring involved in a cap
  11. Replies
    14
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    1,070

    120v through stat wire???

    Just wondered if any body has seen this before. First for me. h/p-a/h r22 30kw heat. all were burnt up: capacitor, contactor, o/d stat, defrost board, thermostat, fan relay, transformer,

    call was...
  12. Replies
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    556

    If so couldn't that be bad if sent into the ref...

    If so couldn't that be bad if sent into the ref system??
  13. Replies
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    556

    I guess that could be possible cause I always...

    I guess that could be possible cause I always shut my guages then the pump then the pump valve. I don't know if I had oil at the guages, I seen it on the Micron guages port and the vac port
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    556

    oil in hoses.

    I had oil in my hoses the other day after a good vac on a new coil and Ac flushed lineset. It's happened once before but can't recall the circumstances. Just weird I though I have a few theorys but...
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    3,883

    yes its one of four must have components....

    yes its one of four must have components. Compressor, metering device, evapoator, condenser
  16. Replies
    43
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    3,883

    A lot of residential guys are briefly trained and...

    A lot of residential guys are briefly trained and sent out on their own, commercial not so much. So if their not purposely ripping you their just incompitent. Find someone that works for a company...
  17. Replies
    43
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    3,883

    It's good to get info from people who's not...

    It's good to get info from people who's not trying to sell you something
  18. Replies
    43
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    3,883

    This is all you need to do ^^^. These are basic...

    This is all you need to do ^^^. These are basic refridgeration issues and should be fixed without having to replace the whole system, these companies kill me these days when it come to fixing your...
  19. bing bing! try this first, its an array of...

    bing bing! try this first, its an array of problems it seems, overcharged, restriction, and prob low air on a dirty old furnace fan, check the side of the coil the air goes through, not the side it...
  20. Replies
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    9,123

    what program or method do you guys use for load...

    what program or method do you guys use for load calculations? Are commercial calcs easy once manual j is learned
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    1,991

    I would try to put it in a closet if possible,...

    I would try to put it in a closet if possible, attic units can cause you headaches down the road, not to mention service-ability. The second unit would be the smart choice because the upstairs wont...
  22. I have had coils from factory so oily water would...

    I have had coils from factory so oily water would drip off of it before it hit the pan, not always but I try to hit a new coil with some foam cleaner helps em drain, as far as the rest stated above...
  23. Man you are a IAQ guru! I'm pretty good at...

    Man you are a IAQ guru! I'm pretty good at service now so the Air stuff intrest's me and is really technical I think, just another step in this trade i guess
  24. Sounds like it isnt working right at all to me,...

    Sounds like it isnt working right at all to me, to have a 10 deg drop acroos your (inside unit) thats bad cooling! They did not install that correctly, by the mod #'s the units should work fine with...
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    4,087

    better check that pot relay on that start kit, if...

    better check that pot relay on that start kit, if it;s stuck closed that start winding is overheating, nott likely it would run a half hour but it could I guess, if your not sure take it off and see...
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