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how contractors really size aircon nicksanspam 10-05-2007
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Posted by Bubba on October 6, 2007, 11:36 am
wrote:

>On 5 Oct 2007 13:00:28 -0400, nicksanspam@ece.villanova.edu wrote:
>
>>I like the "front door rule" :-)
>>
>>http://www.fsec.ucf.edu/en/publications/html/FSEC-PF-289-95/index.htm
>>
>>Nick
>
>One of the most telling bits of info is the "reasons for oversizing".
>The most common reason is because the customer requested it. That
>suggests to me that in the real world the Manual J and other "correct"
>ways of sizing are too often giving undersized results and the
>customers have learned from past experience that they need a bigger
>unit then the "experts" tell them they need. Almost every place I've
>lived in has had undersized cooling.


You then are obviously clueless.
Manual J works this way:
"Correct iinfo put in.......Correct info put out"
"Garbage in................Garbage out"
That is plain and simple.
It seems however that you have just been too cheap to either hire a
competent home inspector or a competent hvac company when you bought
all your homes.
Perhaps if you had done it the correct way you would have then had the
proper info to negotiate the purchase of all those homes so you could
live in a comfortable home.
Next time, try and Expert, not an "expert".
Bubba

Posted by udarrell on October 6, 2007, 11:56 am
Ashton Crusher wrote:

>On 5 Oct 2007 13:00:28 -0400, nicksanspam@ece.villanova.edu wrote:
>
>
>
>>I like the "front door rule" :-)
>>
>>http://www.fsec.ucf.edu/en/publications/html/FSEC-PF-289-95/index.htm
>>
>>Nick
>>
>>
>
>One of the most telling bits of info is the "reasons for oversizing".
>The most common reason is because the customer requested it. That
>suggests to me that in the real world the Manual J and other "correct"
>ways of sizing are too often giving undersized results and the
>customers have learned from past experience that they need a bigger
>unit then the "experts" tell them they need. Almost every place I've
>lived in has had undersized cooling.
>
>
A manual J would provide the correct size unit, however, the reason the
correct sized unit does not cool to design is because of multiplicity of
other factors, that need correcting!
http://www.udarrell.com/proper_cfm_btuh_duct_sizing_air_conditioning_systems.html

Click on the Anchor link: "Specifications VS Reality," = 95% failures of
an AC's Major Performance factors: Ductwork - Airflow - Proper Charge,
Installation, etc.
- udarrell

--
WISDOM PRINCIPLE DIRECTED EMPOWERMENT COMMUNICATIONS -
THE REAL POLITICAL ISSUES and WISDOM BASED PEOPLE EMPOWERMENT

http://www.udarrell.com/ (Updated) Mike Gravel PBS No War - Iran
How much can your constructive communicated Ideas be worth, trillions?
Bush's destructive ideas cost us Trillions?

http://www.udarrell.com/my_pages2.htm (Gravel's Audio concerning Iran)
(* My Airconditioning Links, Hunting Shooting, Angus Cattle)
Reality Is Not An Easy Thing To Be Confronted With, or to Accept.


Posted by Tony Hwang on October 6, 2007, 12:36 pm
Ashton Crusher wrote:

> On 5 Oct 2007 13:00:28 -0400, nicksanspam@ece.villanova.edu wrote:
>
>
>>I like the "front door rule" :-)
>>
>>http://www.fsec.ucf.edu/en/publications/html/FSEC-PF-289-95/index.htm
>>
>>Nick
>
>
> One of the most telling bits of info is the "reasons for oversizing".
> The most common reason is because the customer requested it. That
> suggests to me that in the real world the Manual J and other "correct"
> ways of sizing are too often giving undersized results and the
> customers have learned from past experience that they need a bigger
> unit then the "experts" tell them they need. Almost every place I've
> lived in has had undersized cooling.
Hmmm,
Are you trying to show your fine ignorance?
Deal with competent techs from reputable outfits.
And educate yourself as well.
Quality of work is doing it first time right. Cheap techs, cheap
customers will never get quality. You can interchange words cheap and
ignorance. As a plain consumer, at least I know this much.

Posted by The Freon Cowboy on October 6, 2007, 9:14 am
an interesting read , thanks for the link

nicksanspam@ece.villanova.edu wrote:
>I like the "front door rule" :-)


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