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  1. Replies
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    I just got the Testo 557 and thought I would look...

    I just got the Testo 557 and thought I would look to see the experiences of others.

    Brent I can see your reasoning in thinking that the pressure and oil can have bad effects on the sensors. If...
  2. Replies
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    709

    Yes I did read the manual. I did setup the dip...

    Yes I did read the manual. I did setup the dip switches in the AHU for the heat package and for the cfm. Sorry I didn't make myself clear. The indoor unit communicates with the outdoor unit AFTER the...
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    709

    Thanks guys . No dumb thermostat. The CTK03 is a...

    Thanks guys . No dumb thermostat. The CTK03 is a wifi thermostat with a lot of bells and whistles which means probably more to go wrong. Yeah some post thinking made me reconsider the limit...
  4. Back when all was R-22 we used silver bearing...

    Back when all was R-22 we used silver bearing solder for install work. It has a melting point of somewhere around 460F compared to over 1000F for brazing rod.

    I'll never forget the first time I...
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    709

    Thanks for the suggestions guys. I'm not able to...

    Thanks for the suggestions guys. I'm not able to see the element when it's working but I can check voltages/amperage.

    I am a long time residential guy who went commercial and now I only get into...
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    Now we have X3- gotta try some ...

    Now we have X3- gotta try some

    http://www.cakewalk.com/products/SONAR/X3/

    X2 was good too. Sorry I'm "out there" sometimes

    X3 is part of my world but no one else knows what the hang I'm...
  7. Replies
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    709

    Goodman heat pump w 5kw pulsing?

    I'm looking over a Goodman 2 ton DSZC160241 with a AVPTC183014 AHU 5kw heat package. Two stage compressor 16seer. recent install. The unit is not coming to set point in heating mode on cold...
  8. Thread: Oils

    by Starise
    Replies
    10
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    843

    For the record. I always use a bi-flo filter...

    For the record. I always use a bi-flo filter dryer on a heat pump or make sure one was already in place ,and I'm well aware of what one is.

    While I can see the benefit especially of the bi-flow...
  9. Thread: Oils

    by Starise
    Replies
    10
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    843

    From Steeler country eh?:) They're ok I guess. ...

    From Steeler country eh?:) They're ok I guess.

    I jumped on this because I recently converted from an R-22 system to a R410A system. The line set is a real buggar to pull and I seriously...
  10. Replies
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    5,501

    Sorry I just seen you most recent reply. Glad you...

    Sorry I just seen you most recent reply. Glad you found the problem!
  11. Replies
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    Is this a 10-100% compressor? Not sure what AAON...

    Is this a 10-100% compressor? Not sure what AAON series is equipped with. In their spec. it looks like they install both staged and 10-100% compressors.

    We just had a similar problem with a large...
  12. Thread: Oils

    by Starise
    Replies
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    843

    Sicofthis what types of systems are you mixing...

    Sicofthis what types of systems are you mixing POE with mineral oils and doing it intentionally? If the system is R410 and POE then you want to avoid getting any mineral oil in the system if at all...
  13. Arcoaire 2 1/2 ton 16 seer A/C used R22 system

    I live in the Lancaster County area of Pennsylvania. I am taking this out of my house in order to put in a heat pump. There is absolutely nothing wrong with it. It is 9 years old but has a scroll...
  14. If the decision would have been more in my court...

    If the decision would have been more in my court I would have probably voted for an entirely different kind of system. Maybe a Mitsubishi multi unit. These things are power hogs for one thing....
  15. Trane 10 Ton unit serving 4 evaporators R22 to R410A change out question

    I work for a large university. Sometimes I think I should just go into business for myself ( but that's another story).

    With the above being the case. The parts aquisition is such that larger...
  16. Thread: Oils

    by Starise
    Replies
    10
    Views
    843

    I remember about 12 years ago when all of this...

    I remember about 12 years ago when all of this was new and POE was still the new kid on the block in HVAC. The training I received made it seem super critical that absolutely NO moisture of any kind...
  17. Replies
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    I'll try and get you exact numbers the next time...

    I'll try and get you exact numbers the next time I go up there which I hope is awhile from now ;)
  18. Replies
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    Keeping after the water treatment goes a long way...

    Keeping after the water treatment goes a long way toward preventing a lot of these kinds of problems.

    I realize that you are probably not involved in this and are doing the best you can with it....
  19. Replies
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    1,369

    Craig the only reason I ruled out a bad sensor is...

    Craig the only reason I ruled out a bad sensor is the problem is not consistent. I guess it could be an intermittent sensor though..thanks.
  20. Replies
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    I haven't hooked the display screen up to all of...

    I haven't hooked the display screen up to all of the units. It could well also be a flame failure issue this time round'.

    Time to get it out again I guess.
  21. Replies
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    Wow...are you sure it's safe to be up there? ...

    Wow...are you sure it's safe to be up there?

    Never had a bullet in a unit like that. I serviced a condenser that sat between buildings behind a bar and the drunks peeing in the condenser...
  22. Replies
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    Hey Tommy, the pressure switches all work fine...

    Hey Tommy, the pressure switches all work fine every time I'm there. I would need to jump a switch and then let the unit run for days or weeks with it jumped. A potentially unsafe and unprofessional...
  23. Replies
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    Gas Furnace RTU tripping out on safety

    I know your thinking ...duh...shouldn't it do that.

    This is on a campus in a concrete roof at the top of a gym in the ceiling of the gym(suspended ceiling underneath it.) and about 50ft. off the...
  24. Replies
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    FYI and FWIW not all embraco compressors agree...

    FYI and FWIW not all embraco compressors agree with that Johnstone kit recommended. I had a recent situation where the start components for the Embraco are not compatible and need the OEM parts.
    ...
  25. Collard greens yum.

    Collard greens yum.
  26. Replies
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    Apparently not everyone does.I have seen similar...

    Apparently not everyone does.I have seen similar thing in a Dr Suess book.
  27. I feel dirty just looking at that!

    I feel dirty just looking at that!
  28. Replies
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    I used to yank these out after the company...

    I used to yank these out after the company salesman talked the customer into a new heat pump. One good cleaning would have fixed the problem. The only difference I recall was the pet hair.
  29. Replies
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    If I were putting geo in my house it would be a...

    If I were putting geo in my house it would be a well no doubt. Most people doing that though are not doing it for any kind of financial reasons because any decent return on that investment is long...
  30. Thread: Mitsu Fan

    by Starise
    Replies
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    811

    Had tons of trouble with codes on a perfectly...

    Had tons of trouble with codes on a perfectly charged Mitsu with no problems other than the sensors and circuit board.

    After replacement of a circuit board that took 6 months to arrive and costed...
  31. Replies
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    On more than one occasion we have repaired these...

    On more than one occasion we have repaired these old towers. One recent incident reminded me of yours......on a three impeller two speed tower,the middle impeller just disintegrated but the motors...
  32. Replies
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    Hey guys I wish I could answer all of those...

    Hey guys I wish I could answer all of those questions, but since I didn't install the system we would need to go back to the contractor. There might be some info in the campus blue print room that...
  33. Replies
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    The system has two outlets/inlets for both return...

    The system has two outlets/inlets for both return and supply of the geo loop, and both a supply and a return circulator pump for each heat pump,those supply and return loops are headered together so...
  34. Replies
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    Low Geothermal loop temps??

    I am the HVAC tech at a local university and the university is in the process of going green in a big way. We even had a geothermal unit installed in the presidents house. The system in question is...
  35. Thread: KMC Hookup

    by Starise
    Replies
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    4,392

    Thanks

    Thank you gentlemen for your help .We have an older computer I can use to set up for programming and testing these boards. All I should need is a 24 volt power supply for the boards and some input...
  36. Thread: KMC Hookup

    by Starise
    Replies
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    OK dapper,thanks. I'll see about digging a little...

    OK dapper,thanks. I'll see about digging a little deeper into the manual.
  37. Thread: KMC Hookup

    by Starise
    Replies
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    4,392

    Yes I do in fact have the software but what I...

    Yes I do in fact have the software but what I don't seem to have is the ability to do anything but look at existing boards that have already been programmed. Pardon my ignorance. The KMC system was...
  38. Thread: KMC Hookup

    by Starise
    Replies
    14
    Views
    4,392

    KMC Incontrol software

    Dapper do you still have the incontrol software? Your email link is obviously dead. The reason I ask is that the company I work for is removing many older KMC boards 5500 series .I think I can get...
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