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  1. Replies
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    Views
    279

    I'm goin fishen tomorrow. I have successuffly...

    I'm goin fishen tomorrow.
    I have successuffly ran this unit since sunday on return air. I have installed a room sensor and will move control to that tommorow, amongst other parameter changes.
    The...
  2. Replies
    3
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    279

    mcquay mps set-up questions

    set a new mcquay mps062elas50 on a roof this weekend to replace an older model mcquay. The zone stat does not appear to be compatible with this new unit (p/n 665404b-09).
    The plan is to use this...
  3. sounds like a great idea. you just need to...

    sounds like a great idea.
    you just need to ask for a few numbers. obviously passing air across the coil and removing the moisture will remove btu's. cold air is going to come out the supply side...
  4. Replies
    2
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    292

    30*F suction line temp. ya, you're probably...

    30*F suction line temp. ya, you're probably bringing liquid back, or poor heat exchange at the evap.
    I guess the slugging problem was never resolved from the first burn-out. with a 16*f split, i...
  5. Replies
    6
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    468

    Thank you gentleman, york supplier never...

    Thank you gentleman, york supplier never mentioned superseded part. the camstat that's in ther is performing as should now that I corrected the rotation. I think with it facing the heat exchanger and...
  6. Replies
    6
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    468

    old york fan limit question

    Fan limit switch for this older model york furnace is no longer available. Some one (who knows who or when) replaced it with a camstat p/n fal3c05td120a .
    It looks to have been installed wrong,...
  7. Replies
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    210

    Zones is very basic, simple is always nice. I...

    Zones is very basic, simple is always nice. I have seen a handful of these operate for years with out a hitch. I find most zoning problems are related to set point adjustments, bypass damper issues,...
  8. Replies
    1
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    161

    honeywell temp set point controller

    I see these around once in a blue-moon. Could never find the iom for Honeywell T678B.
    anyone know at what temp of osa this sets the set point up?

    My understanding of this controller is:
    1...
  9. Replies
    2
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    186

    which did you choose? I think rubber pads sounds...

    which did you choose?
    I think rubber pads sounds cheap and easy, but springs sound good if you proportion them correctly. I just replaced broken springs on a Copeland semi herm.
    go to carrier's...
  10. Replies
    2
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    218

    mason industries makes great stuff. i like the...

    mason industries makes great stuff. i like the I-beam idea too, easy. I'm assuming this raising is for run-off of water? whatever you put down there, make sure the rain and sun won't rust/disolve it.
  11. Replies
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    708

    5 plus years? commercial isn't really some...

    5 plus years? commercial isn't really some specialized industry, just a few changes from the residential market. Be prepared to be low guy on the totem pole. Most shops need a few cheap guys to run...
  12. Replies
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    1,001

    phosgene gas takes my breath away, not sure what...

    phosgene gas takes my breath away, not sure what the epa would have to say about this.
    Does refrigerant cook at brazing temp. we all know about burn-outs, but I bet those are flashes well over...
  13. Replies
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    1,733

    so, $25 an hour is about 50k a year? what's an...

    so, $25 an hour is about 50k a year? what's an automotive mechanic in west palm beach cost you an hour? I believe that's a good starting point to reference journeyman wage in your area.
    A valuable...
  14. Replies
    16
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    809

    don't you feel kinda cheap, when someone starts a...

    don't you feel kinda cheap, when someone starts a post, but never lets you know how it turned out. some of the best knowledge is gained from others experiences.
  15. burned out? like caught on fire? voltage drop...

    burned out? like caught on fire?
    voltage drop would be my first suspect. When the voltage goes down, the current goes up, and so does the heat. If it's a coil for a load, like the strip heat, maybe...
  16. Comp Contactor Fail - Circuit 2 Problem: The...

    Comp Contactor Fail -
    Circuit 2
    Problem: The Compressor
    Contactor for Circuit. #2 has
    malfunctioned.
    The circuit #2 compressor
    proving input is detected
    closed continuously for more
    than 3...
  17. Shoot me your email address, and the model you...

    Shoot me your email address, and the model you have, i'll mail you the iom. Can't disiffer your problem from your thread... ne more details?
  18. Replies
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    716

    replay

    Had a similar problem on another brand. Found the ice sheets forming from ice not completley falling off the sheet, defrost was running too long, and poor cube formation.
    I cleaned the float assy,...
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    836

    statitrac update

    After speaking with tech support, found out my rtm and ecem boards are 15 years old. Apparently the more updated boards allow for instant ex fan enabeling, as apposed to the lag of exhaust fan coming...
  20. Replies
    7
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    836

    shotgun this problem

    Gentlemen, thank you for the replies.
    I have isolated this issue to exhaust not keeping up with economizer. Building doors swing open at .12inwc, the osa dampers are at a min 5% 100vfd, 12% 0vfd. I...
  21. Replies
    7
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    836

    intellipak building static issue

    Problem is occasional opening of building doors.
    two intellipaks and two duct furnaces for dual duct vav system. Bot intellis use statitrac, setpoint for bldg static on bot is. 03, .04 dead band....
  22. Replies
    8
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    759

    love me them books

    Folks,
    I would like some reconmondations on refer books. I have found over the years my training in other asspects of the hvac trade help me though refer service calls, but i need to get some...
  23. Replies
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    873

    He hit the nail right on the head. Anything below...

    He hit the nail right on the head. Anything below 130 deg causes condensing, unless this is a high-e boiler, it won't like that at all. BTW, are your cool only stats pneumatic? If so, you may be able...
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    5
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    873

    at such a low return temp, do you get a lot of...

    at such a low return temp, do you get a lot of condensation from the boiler?
  25. Replies
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    Trane Voyager low loads

    My customer is interested in using two exsisting Trane YSC120A4RLA's to condition a large space of about 6,000 ft2, 8' ceilings at 64 to 68 degrees 24/7. Each unit is ducted for it's aprox 3,000ft2....
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