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  1. Replies
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    Wow... didn't expect to see a 10-year-old thread...

    Wow... didn't expect to see a 10-year-old thread get rebooted. :)

    I'm a 4-year graduate from campus. I did both the AAS and BS. In that time, I decided I didn't want an 18-hour semester so I...
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    Daikin RXYMQ Night Mode

    Howdy folks,

    The Daikin guy will be out at my house today to make tweaks to my Daikin system after the cooling season has started.

    One of things we might end up tweaking is the Night Mode...
  3. Replies
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    308

    That figures. I used the automatic setting in...

    That figures.

    I used the automatic setting in the beginning, but it set the units to gale-force winds blowing through the house. I switched it back to manual mode and turned the air flow down to...
  4. Replies
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    Daikin discharge air temps

    Howdy, folks,

    My Daikin VRV-IIIS has been up and running for about 6 weeks now and I've had the pleasure of seeing it run in both heating and cooling. Thus far I'm happy with it. (Full review and...
  5. Found it! Thanks, Tech. Helped a ton!

    Found it! Thanks, Tech. Helped a ton!
  6. Replies
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    837

    I cannot imagine any VRF manufacturer allowing...

    I cannot imagine any VRF manufacturer allowing this. Their pipe sizing rules, fittings, etc. are all made so that their systems work when the finished product is installed. That's how they guarantee...
  7. Daikin Navigation controller "Indoor Unit Status"

    Howdy folks,

    The Daikin system has been working in my house for about a month now. Seems to be doing OK; I'm going to have my rep out in a few weeks to make sure that I programmed everything OK.
    ...
  8. To an extent, I would agree with you. By...

    To an extent, I would agree with you.

    By virtue of their need to cool, compressors have a certain minimum RPM that they must maintain in order to ensure that they get adequate lubrication and...
  9. Replies
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    1,458

    Day 5 and 6

    Well, I got pooped last night so I didn't take any photos. Yesterday and today a great deal of progress was made. First, the refrigerant lines are run and ready for final connections to the piping...
  10. Replies
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    1,458

    Yep, you're right. There really was no other good...

    Yep, you're right. There really was no other good place to put it, though, considering that this is the unit that serves the room above it. If the blower does need to be replaced, I'll have to take...
  11. Replies
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    1,458

    Now Day 4...

    The fan coil in the laundry room is nearly complete. The main duct trunks to the fan coil were completed today. The biggest progress was in the crawlspace underneath the family room. This fan coil...
  12. Replies
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    1,458

    Day 3

    Contractors returned to the site today. One more fan coil is up and the ductwork has started. Many of the takeoffs have been connected and some are going to be a bit more difficult. The light fixture...
  13. Replies
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    1,458

    Day 2

    Nothing really happened on Sunday, so Monday was Day 2. In order to make way for the fan coil unit serving the living room and kitchen part of the house, the water heater needed to be moved. After a...
  14. Replies
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    1,458

    With the exception of the individual takeoffs to...

    With the exception of the individual takeoffs to diffusers, all ductwork is being demolished and replaced with properly sized ductwork with one inch of insulation lining for acoustics. (Since one...
  15. Replies
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    1,458

    Yes. I had the diffusers in my home that I wanted...

    Yes. I had the diffusers in my home that I wanted to reuse and I also have duct heaters for auxiliary heat as well.
  16. Replies
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    1,458

    Daikin's going in my house!!

    Howdy, folks,

    OK, so I really have no idea which section of the forum a post like this goes in, so I'll just file it in "General" for now and hopefully will be able to post its conclusion in "Wall...
  17. Replies
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    50PanHead, We are a consulting engineering...

    50PanHead,

    We are a consulting engineering firm that has done work on your campus before and we have a number of Daikin systems underneath our belt. We are working with TMI, as previously...
  18. Replies
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    2,819

    Yeah, I was a bit befuddled as well, but the...

    Yeah, I was a bit befuddled as well, but the Daikin guy tells me that the only thing "Auto" about the fan is that the fan goes off when the stats no longer call. Otherwise, they are running on...
  19. Replies
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    2,223

    I guess I'm confused because Daikin tells me that...

    I guess I'm confused because Daikin tells me that the fan speed doesn't change... It only shuts the fan off when the thermostat is satisfied. Otherwise, it's a CAV system, with three user-selectable...
  20. Replies
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    Thank you for all of the input. To comment and...

    Thank you for all of the input.

    To comment and respond to some posts, the ducted units that I will be using ("P" series) I have confirmed have an "Auto" fan mode, although, curiously, the mode...
  21. Replies
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    2,819

    Residential Load Calc for Daikin VRVIII-S

    Howdy folks,

    I'm applying a Daikin VRVIII-S to my house. I've run loads for four zones in my home and want opinions as to what equipment size I end up going with.

    Zone 1: Bedrooms
    12.6 MBH...
  22. Replies
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    2,177

    How big is the condenser? How big is the space...

    How big is the condenser? How big is the space the condenser is sitting in? How often will the machine run?

    I've done similar things in basements before with very small condensers cooling a small...
  23. Replies
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    2,223

    Daikin Operation Question

    Howdy folks,

    Got a question for the Daikin guys out there... how does your VRV system maintain room setpoint?

    My understanding is that indoor fan coil units (all of them) are basically constant...
  24. Jim, Yes, they are in the 435/Lackman area of...

    Jim,

    Yes, they are in the 435/Lackman area of suppliers. They have an 8-ton 3-phase model available and various configurations of indoor equipment.

    I've got dibs on the 4-ton single phase until...
  25. Thanks for the replies. The reason why the...

    Thanks for the replies.

    The reason why the equipment was removed was to make way for for the new brands that the vendor wanted to showcase. The units themselves were fully functional at the time...
  26. Hygroscopicity of POE (and whether or not it should be replaced)

    Howdy folks,

    I've been given an opportunity to purchase some second-hand VRV equipment that I am very interested in installing in my home. The equipment is out of a small office building that...
  27. I agree with you wholeheartedly. That...

    I agree with you wholeheartedly. That relationship is the reason why I'm looking at the Daikin units and not another brand. (Other than Nordyne) It's not that anybody else is any less capable from an...
  28. The experience I have had with my Daikin guys has...

    The experience I have had with my Daikin guys has been the same. They have very much been evolutionary in their design approach, starting with my loads for individual rooms, developing coincident...
  29. jkish, The heat pump, the zoning system, or...

    jkish,

    The heat pump, the zoning system, or both?

    Thanks!
  30. mchild, That is a very good idea that I hadn't...

    mchild,

    That is a very good idea that I hadn't considered. Thanks for the advice.

    Scac,
    You cannot put a traditional zoning system on an iQ Drive system, you are correct. However, Nordyne has...
  31. To answer some of your questions: You're most...

    To answer some of your questions:

    You're most correct: Having multiple indoor units connected to one outdoor unit is a much more efficient way to go, plus you don't have to waste extra energy on a...
  32. Hey Maytag/Nordyne guys, where's your iQ Drive Heat Pump???

    Howdy folks,

    Been a while since I've been to the forum. It's changed quite a bit!

    To the point: I will be a first-time home-buyer soon enough. I am anticipating buying a home which will need...
  33. Replies
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    Thanks!

    Thanks!
  34. Replies
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    6,951

    Trane chiller serial number nomenclature

    Howdy folks,

    I can't believe that I'm not finding this in the forums, but does anybody have Trane's serial number nomenclature on hand? I'm trying to figure out how old this RTAA-125 chiller is. I...
  35. Replies
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    6,544

    The units are being provided pre-conditioned air...

    The units are being provided pre-conditioned air from an energy-recovery DOAS system, yes.

    The only exception is a heat pump we are using as an OA ventilation unit, but its air is being tempered...
  36. Replies
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    6,544

    Could you please elaborate on "interface?" Do you...

    Could you please elaborate on "interface?" Do you mean the LON interface?

    To address concerns raised above, the school district has a maintenance contract with a mechanical firm which will take...
  37. Replies
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    6,544

    WaterFurnace vs. ClimateMaster

    Good Morning/Day/Afternoon all!

    I'm seeking opinions on two different manufacturers of water-source heat pumps. While I know it is somewhat looked-down upon to compare brands on the forum, I need...
  38. Thank you to all who posted. Gives me a better...

    Thank you to all who posted. Gives me a better idea of what's out there.

    I'm on my internship out in Tacoma, WA at Air System's Engineering, and lo and behold one of my first jobs was to do a load...
  39. Replies
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    3,795

    I am at Ferris now working towards the 4-year...

    I am at Ferris now working towards the 4-year HVACR engineering technology degree. I would be happy to answer any questions that you guys might have about the school or program.

    It is an awesome...
  40. Howdy folks, If I have been keeping track of...

    Howdy folks,

    If I have been keeping track of time correctly, it has been 1 1/2 years since I made my last post on this forum. School work and jobs have kept me from enjoying the pleasure of your...
  41. Replies
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    I bought a Canon Powershot A80 about a year ago....

    I bought a Canon Powershot A80 about a year ago. At the time, most internet websites rated it the best all around digital camera in the $300 price, with the only complaint being minor purple-fringing...
  42. Replies
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    Republicans= People who think they can do it...

    Republicans= People who think they can do it better than the government.
    Democrats= People who think the government can do it better than them.
    Neo Cons= Don't know.
  43. Thread: Nintendo

    by gschra11
    Replies
    39
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    2,749

    Dad rebuilt our Nintendo this past summer. I...

    Dad rebuilt our Nintendo this past summer. I FINALLY beat Zelda. I've been trying to do that since I was 5. :)

    Mario I II and III, Zelda and Zelda II, Contra, Duck Hunt, Tetris, Mega Man, and The...
  44. Replies
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    Thanks swanny!

    Thanks swanny!
  45. Replies
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    2,558

    I am looking for a formula to calculate both the...

    I am looking for a formula to calculate both the Heat of Extraction (HE) and Heat of Rejection (HR) for Ground Source Heat Pumps.

    I have the following variables to plug into the formula:

    Return...
  46. ct2, Actually, I am still in school. The place...

    ct2,

    Actually, I am still in school. The place that you described sounds deplorable; I applaud you for recognizing that it was time to go. A small victory has been won that way. I can understand,...
  47. I don't think this is an educational problem. ...

    I don't think this is an educational problem.

    While pathetic excuses of educational institutions can turn off students who are pursuing a degree at that institution, I would think that someone...
  48. Replies
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    It has been awhile since this thread has been...

    It has been awhile since this thread has been replied to. After getting the reply E-Mail, I noticed that the pictures need to be updated! The building is done now!

    I'll work on that and try to put...
  49. I whole-heartedly agree, lmtd. Grades, SATs...

    I whole-heartedly agree, lmtd.

    Grades, SATs and ACTs are a big game, and quite frankly, some are bad at playing it.

    If only society could realize that there is more to a person than pure...
  50. While the colleges and Universities certainly...

    While the colleges and Universities certainly boast their beautiful campuses and elitest attitudes, there still exists the stereotype that if you are getting Cs in late elementary school that you...
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