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  1. Replies
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    on call

    recheck your specs. for indoor unit fe4anf003 airflow 1050, that what was installed with 38ydb
    Thermostat is infinity electronic stat. It is good as it gets.
    You should find total for combo at 95...
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    beenthere, thanks

    Yes I believe a 31/2 would have been ok, but as you say infinity system doesn't come 31/2 ton.
    So again my thinking is the four ton being a little oversize, depending on outside temp, will be ok...
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    Thanks Dash

    I'm just a home owner, wanting to make sure it is right.
    I'm not interested in who was right or wrong, just that it is the right size unit for job.
    Thanks again
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    On call, If you figure just total, it sounds as...

    On call,
    If you figure just total, it sounds as if you are correct in 4 ton being over size so a three ton should do the job.
    If you seperate the numbers and look up output for unit, it is totally...
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    yes, figures for 70 inside included derating. It...

    yes, figures for 70 inside included derating.
    It is my understanding (may or may not be correct) is heatpump or ac unit has to put out enough sensable to carry load with no more than 15% oversize at...
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    Just would like opinion on this..Infinity system...

    Just would like opinion on this..Infinity system
    Well, like I said if I calculated everything right, the three ton using design spec. set forth by Hvac calc. program for my area.
    latent needed...
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    633

    4 ton unit infinity system installed. Static...

    4 ton unit infinity system installed.
    Static reading on high fan .45
    Fan speed 1470 on high
    Gulf coast area..Is static out of line?
    What would ideal number be?
    Thanks,
  8. Replies
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    Docholiday

    Well, like I said if I calculated everything right, the three ton using design spec. set forth by Hvac calc. program for my area.
    latent needed 28,563 at outside 95 indoor 75
    3 ton sensable output...
  9. Replies
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    3,062

    I can't believe I'm the only person in the world...

    I can't believe I'm the only person in the world that keeps there house 70 degrees year round.
  10. Replies
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    Docholiday

    They installed a 3 ton in April of this year. I'm not home much so I didn't see how well it performed on a daily basis.
    Finally have a little time off, did a manuel j of my own.
    Sensable 30,752...
  11. Replies
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    Can someone tell me why the fan speed at top end...

    Can someone tell me why the fan speed at top end (1470cfm)is so much higher than 003 model(1050cfm)?
    As these are being switched from 03 to 05 next week, I was just curious and if the higher speed...
  12. Replies
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    611

    Is lineset different size for 3 ton heatpump vs...

    Is lineset different size for 3 ton heatpump vs four ton?
    The equipment in question is carrier infinity system.
    Is breaker and wire size also different?
  13. Replies
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    Smokin

    Just wanting to make sure I have numbers right for Manuel j which states I need 30,000 sensible. My hvac company is well respected and been around awhile. I just think they made a mistake installing...
  14. Replies
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    633

    Would just like someone to confirm I'm reading...

    Would just like someone to confirm I'm reading and figureing this correctly.

    38ydb036 carrier heatpump..goal is sensible cooling at 95 outdoor and 70 indoor, cfm 1050
    I came up with: 17,411...
  15. Replies
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    417

    Can you please tell me about EWB in the cooling...

    Can you please tell me about EWB in the cooling capacity spec. The range goes from 72 to 57. Capacity changes with numbers. 63 seems to be the magic number.
  16. Thread: Any answers?

    by flajoker
    Replies
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    1,881

    Dan

    The 2 1/2 ton unit that was called out for came from HVAC-Calc. That is what was listed on page when printed.
    It wasn't something just made up. If you run program and "check" show tonnage, it will...
  17. Replies
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    more help, please

    Dash...us fatboys gotta be cool:)

    Dan, now I'm really confused. Why does manuel j even give a tonnage size? Doesn't it use the design criteria that you input at the beginning?
    Did I state the...
  18. Replies
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    Did the manuel J on my house last week and now...

    Did the manuel J on my house last week and now i'm trying to establish if infinity ydb 3ton 2 speed heat pump and fe4annf003 has enough btu to cool to 70 degrees.
    Looking on spec. chart it shows a...
  19. Replies
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    Thanks to all that replied...maybe I'm asking to...

    Thanks to all that replied...maybe I'm asking to much
    I have to say I do love the quiteness and I'm convinced it is a great product, even in my thirty year old home.
    I would recommend the infinity...
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    Dan

    What would the derating be trying to lower to sevendy degrees?
    As I explained in an earlier post, the time I was at home in the summer the unit kicked on about 10:00am and never shut down again...
  21. Replies
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    John I have a fairly new installed 3 ton ydb 2...

    John I have a fairly new installed 3 ton ydb 2 speed heat pump. It is the infinity system. Didn't seem to cool like I like it in summer. I work out of town alot so I didn't get to see how it is...
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    Numbers are as follows: summer temp. 70 winter...

    Numbers are as follows:
    summer temp. 70
    winter temp. 74
    relative humidity 50
    Outdoor temp. 95
    winter temp. 29
    summer grains of moisture 116
    temp. range medium

    sensible gain 25,327
  23. Replies
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    What is everyone's opinion on sizing heat pump....

    What is everyone's opinion on sizing heat pump. If manuel j called for 31/2 ton but unit comes in 1 ton sizes, would you go 3 ton or 4 ton. Area would be n.w. fl.
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    Carrier infinity system...taken from advanced,...

    Carrier infinity system...taken from advanced, service of thermostat
    Fan on low
    Airflow 519 cfm
    Blower 442 rpm
    Static pressure .10

    Fan on high
    Airflow 1050 cfm
    Blower 772 rpm
    Static...
  25. Thread: Is this bad?

    by flajoker
    Replies
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    903

    Dash

    My living room and dining room seem to stay a little warmer in summer than the rest of the house. But I also have stereo, and home theather equipment in that room also that generates heat. Maybe get...
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