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  1. Replies
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    As stated the "T" wire was hooked to an outdoor...

    As stated the "T" wire was hooked to an outdoor thermistor for heating anticipation of a mercury bulb thermostat, just omit it.
  2. There are many factors that go into making an...

    There are many factors that go into making an informed decision, warranty is just one of them. I will put Honeywell's' track record up against Nest any day of the week. just my $.015
  3. A "King Valve" is the liquid line shut off valve...

    A "King Valve" is the liquid line shut off valve at a receiver tank. A liquid line service valve is what you find on outdoor units. I ALWAYS wrap and cool with water ANY valve that I solder in, or...
  4. Is this a multi-stage unit?

    Is this a multi-stage unit?
  5. Replies
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    It is a little over 20 tons (024 = 20tons) and...

    It is a little over 20 tons (024 = 20tons) and was made the 45th week of 1993. It should be a standard Carlyle cast iron compressor with one or two unloaders, most likely suction cut-off unloading.
  6. Isn't "H1" the humidity sensor? Do you get a...

    Isn't "H1" the humidity sensor? Do you get a humidity reading at the stat now?
  7. The Vision Pro 8000 has a five year warranty,...

    The Vision Pro 8000 has a five year warranty, what does the Nest have. The 8000 is a rock solid stat with years of proven performance. I have installed many ecobee's and was not all that impressed...
  8. Sounds like you are talking about PTAC (package...

    Sounds like you are talking about PTAC (package terminal air conditioner) units not window shakers. They must be pulled and chemically cleaned (and lubed if equipped) before the cooling season to get...
  9. Being a VAV unit all it knows is discharge air...

    Being a VAV unit all it knows is discharge air temp setting and static pressure setting. It will ramp up and stage up accordingly. Make sure the time delay between rooftop units is set to allow...
  10. Lennox = Dec 1999 (2.5ton) Payne = 11th week...

    Lennox = Dec 1999 (2.5ton)

    Payne = 11th week of 2003 (4 ton)
  11. Replies
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    Thank you for the manual and information. John

    Thank you for the manual and information.
    John
  12. Replies
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    969

    I am in Chesterfield Co. Thanks, John

    I am in Chesterfield Co.
    Thanks,
    John
  13. Replies
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    969

    Teletrol 186 info needed

    I ran into an old Teletrol 186 Integrator today that is has the "error light" on solid. They lost their building's transformer and now the system will not run. There is no information on site about...
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    Sounds like Precedent models.

    Sounds like Precedent models.
  15. I would suggest you look at fan speed control...

    I would suggest you look at fan speed control along with auto-reset freeze stats.
  16. Replies
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    If it was "Snowball" it would take twenty years...

    If it was "Snowball" it would take twenty years of that to kill it.
  17. Replies
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    1,196

    Is the underside of the head smooth or does it...

    Is the underside of the head smooth or does it have a square plate bolted on?

    Smooth = hot gas bypass
    Square plate = Suction cut-off.
  18. Did they run a "Heat Load" on your house to...

    Did they run a "Heat Load" on your house to determine exactly what was needed for upstairs and downstairs, not just replace "like for like"? Houses change over time with trees growing up and more or...
  19. Carrier and Data Aire (IMHO) can not tie...

    Carrier and Data Aire (IMHO) can not tie Liebert's shoes (even though a lot of older Liebert units used Carlyle cast iron compressors). I take care of three at a local TV station that have been...
  20. Replies
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    All "39 Series" Carrier air handlers are purpose...

    All "39 Series" Carrier air handlers are purpose built so you will have to call Carrier( and hope you get someone that even knows what they are) to decipher its numbers. It appears to be built in the...
  21. Does it have anything attached to its "Emergency...

    Does it have anything attached to its "Emergency Stop" terminals? And if yes have you tried jumping them out?
  22. Replies
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    Is this a Trane Voyager with the UCP? If yes,...

    Is this a Trane Voyager with the UCP? If yes, have you taken the outdoor air sensor and discharge air sensors and checked their ohm readings? Also have you taken the outdoor sensor loose, pulled the...
  23. More information please. Are you trying to...

    More information please. Are you trying to replace the remote condenser, the indoor unit or what? How is Mitsubishi involved?

    Data Aire is a poor man's Liebert.
  24. Best bet is to take it to a motor shop for...

    Best bet is to take it to a motor shop for confirmation.
  25. Replies
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    Amen Brother! What, you mean I can't take a...

    Amen Brother!

    What, you mean I can't take a little pill that will cure all the world's ailments? You mean that I ACTUALLY have to do my job? :gah: :grin2:
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