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  1. A Mfg'ers SEER Rating is only a potential that is...

    A Mfg'ers SEER Rating is only a potential that is supported perfectly by all the other factors that actually determine how much of the SEER all the conditions within your home fully support.

    You...
  2. Opinions are often wrong; the 3.5-Ton probably...

    Opinions are often wrong; the 3.5-Ton probably was not operating/performing near to its Ratings.

    I do not understand why 3.5-Ton will not be more than enough for a 1700-sf home; that is a very low...
  3. Just because you're a great candidate for a 4-Ton...

    Just because you're a great candidate for a 4-Ton system - does NOT mean you should put a 4-Ton in - verses a 3.5-Ton which will be operating more efficiently.

    For many good reasons, it always...
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    Louisville KY 2.5% summer design is 93F dry...

    Louisville KY 2.5% summer design is 93F dry bulb; 74F-wet bulb for around 40% relative humidity.
    What size hone do U have?

    The heating heat-loss seems high for your location.

    It's wasteful...
  5. Don't think U can say a TXV makes exactly a...

    Don't think U can say a TXV makes exactly a .5-SEER difference; could be more or less, depends on a lot of other factors that determine what SEER level Rating is actually achieved.
  6. IMO; 14-SEER & above ought to come with the TXV...

    IMO; 14-SEER & above ought to come with the TXV installed as standard equipment.

    I wouldn't want a system without a TXV metering device on it; it handles all the variables better.
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    I think; when it shorts supplies; some regulation...

    I think; when it shorts supplies; some regulation to prevent the selling of propane to other countries to make a quick buck ought to be passed. That is what caused this extremely cold past winter...
  8. You need to get a humidity gauge because it...

    You need to get a humidity gauge because it affects the indoor temp-split that saylor240 is talking about; what he stated is right for 50% indoor relative humidity.

    A higher humidity will lower...
  9. It had a 3.5-Ton condenser that probably didn't...

    It had a 3.5-Ton condenser that probably didn't have adequately designed supporting factors, so it couldn't deliver near its capacity.
    Actually, a 3-Ton is only 567-sf per/ton of cooling. What kind...
  10. Don't rush into making a decision; take your time...

    Don't rush into making a decision; take your time & consider all aspects of you homes factors that might be cost-effectively improved.

    The energy audit if with a blower door & infrared scan can be...
  11. Had several GE condensers with a plugged strainer...

    Had several GE condensers with a plugged strainer in the condenser coil; back then put a tap on the small area of copper, blew the charge, removed the strainer brazed a piece of copper tubing in that...
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    That duct system & Return-Air filter areas were...

    That duct system & Return-Air filter areas were probably No sized for 4-Ton 1600-CFM of airflow.

    So, you're located in Sacramento California; 98F dry-bulb; 70F wet-bulb for a low relative...
  13. NO, NOT LIKELY! So, you think if the tag says...

    NO, NOT LIKELY!

    So, you think if the tag says 18 or 20 SEER it automatically achieves that Rating, Huh!
    Guess again...all the other design factors determine the SEER Level that is achievable.
    ...
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    Mr Bill is being realistic... Some help may be...

    Mr Bill is being realistic...

    Some help may be on the way; however the higher the SEER the more difficult to get all the factors in tact to come anywhere near achieving a high SEER Rating; other...
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    Don't worry about your above questions, they will...

    Don't worry about your above questions, they will have the required training & special software to help them know how the usual DOWNSIZING of equipment will help make the duct sizing & filter area...
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    Always remember; there are a host of other...

    Always remember; there are a host of other critically important factors that actually determine what SEER Level is actually achieved, irrespective of the Mfg'ers laboratory-condition Ratings, that...
  17. Just another example of extremely poor...

    Just another example of extremely poor design-engineering; or total lack thereof...
    There are far too many companies that don't use the ACCA Manuals to design anything...just do quick shabby work &...
  18. It's oversizing 'coupled with all the other...

    It's oversizing 'coupled with all the other critical factors that don't get done right' that screws-up the functioning of the entire HVAC system.

    The customer/consumer may call several contractors...
  19. As you reduce the size of the A/C you can also...

    As you reduce the size of the A/C you can also reduce the size of the furnace; sometimes in some northern climate areas the required CFM for both heating & cooling can come out almost the same.

    My...
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    Maybe he is an electrician, occasionally they...

    Maybe he is an electrician, occasionally they don't know that much about A/C units. :whistle:
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    The picture showed up... That is a Return-Air...

    The picture showed up...
    That is a Return-Air adjustable grille.
    It has a typical 16X25X1" RA Filter.
    Wonder what the heating & cooling CFMs are?

    Depends on what other vented burners there may...
  22. I sympathize with you concerning not finding good...

    I sympathize with you concerning not finding good resi-HVAC technicians; it shouldn't be that way & we need to work to change that situation.

    Many of us have done nearly as much work fixing what...
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    In post #2, I gave you a link to a free...

    In post #2, I gave you a link to a free load-calc; give it your best shot... the LOAD-CALC

    I wouldn't worry about those few +90F hours during those few days, the Calc's SIZER link has a little...
  24. If possible, I'd go with natural gas furnace...

    If possible, I'd go with natural gas furnace otherwise I'd go with propane over the oil furnace.
    It is usually more difficult to get full airflow due to the large heat-exchanger near the top of the...
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    Seattle WA 2.5% summer design is 80F dry bulb;...

    Seattle WA 2.5% summer design is 80F dry bulb; 64F WB; around 41% Relative Humidity.
    New construction should be energy efficient; it should take very little tonnage to cool your home.

    I...
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