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Thread: Pull back to 2.5 Ton and be OK?
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06-22-2008, 09:41 PM #14
God's Speed Bruce - 3/23/10
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The home in Key Largo was a special built class 5 hurricane house. 2' thick poured concrete with block glass windows, etc.
Originally Posted by hvaclover
He must have a Telescoping thumb
HEY APRA: What were the main architectural dieeferences between the two homes you just mentioned?
The other home, absolutely none what so ever insulation...
I could not belive the calcs. But , after numerous times running them, I installed the systems and they are cooling....perfectly.
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06-22-2008, 10:22 PM #15
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most new homes have R-30 or R-38 which is slightly more than the older homes, but at 500 sq ft. per ton they keep up just fine... so they're "new" calcs if they are even doing them
, are 400 sq. ft. per ton so obviously they are leaving some to spare... unless they are planning on everyone adding on to their house LOL... the solid concrete basement homes I've seen were always 700-1000 sq. ft. per ton...
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06-22-2008, 10:36 PM #16
Banned
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A Man J will tell what is needed.
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06-22-2008, 11:03 PM #17
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They are not doing them, just guessing.
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06-23-2008, 09:57 AM #18
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Amazing
Simply amazing. Originally Posted by arpa
Wonder if it'd withstand our annual F-3 tornadoes?
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06-23-2008, 10:19 AM #19
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Kinda funny to me because cause in Modern Refrigeration (Class text book) Originally Posted by arpa
they gave an example on doing a cooling calc on a 900 sq ft home with no insulation.
Can't remember the design temp but it was a hotter part of the use.
After 6 pages of data the class figured five tons of cooling.
I always thought there was something wrong with the numbers but the instructor hand book showed five tons too.
I'm just glad I know my territory and the building practices that are used.
Makes sizing a lot easier.
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