On Friday, July 4, 2014 11:34:11 AM UTC-4, Tim Wescott wrote:
On Fri, 04 Jul 2014 04:06:11 -0400, rickman wrote:



On 7/4/2014 12:57 AM, Tim Wescott wrote:

On Thu, 03 Jul 2014 22:28:23 -0400, krw wrote:



On Thu, 3 Jul 2014 17:00:16 -0700, "Pico Rico"

wrote:





"RobertMacy" wrote in message

newsp.xif3so2o2cx0wh@ajm...

On Thu, 03 Jul 2014 16:29:47 -0700, Pico Rico



wrote:





"RobertMacy" wrote in message

newsp.xif3f3zo2cx0wh@ajm...

...snip...

So my question is WHICH way is this !@#$#@ system designed for? UP

or DOWN air in the summer?



it depends if you have air conditioning.



again which way? for what reason? elaborate?



heat rises. If you have ac, you want to push the warm air down so it

can become ac'd. If you don't have ac, you might as well leave the

warm air up there were it will be less noticed.



But you can cool to a higher temperature if you help the convection

off your skin. Add in evaporative cooling and a breeze is a big win,

at least in small rooms, like a home.



We have air conditioning which keeps the house at 78, and a way

undersized room dehumidifier which we set up in the master shower, turn

on the circulating fan in the furnace, and basically slowly and

inefficiently dry out the whole house.



It makes a huge huge difference how hot it feels -- and we're in

Oregon,

where everyone is a humidity wimp.



Do you realize the dehumidifier is just an AC unit where the heat is

exhausted back into the room? You could do the same thing by running a

small space heater which would make the AC run more often which does a

much better job of taking the humidity out of the air. Actually, I've

never seen a house with AC that still had high humidity, but then I'm

not in the Pacific northwest.



Our AC is a heat pump which does not remove the moisture from the air --

it just cools it. Don't ask me how -- for all I know they have the thing

arranged to do it on purpose.



--

Tim Wescott

Have you looked for a condensate drain line coming out of the air handler
and for water coming out of it when the AC is running? It's a virtual
certainty that it's removing water from the air, it's a direct result of
the physics. The humidity is likely still high because with it set at 78F,
unless it's real hot outside, it doesn't run enough to take the humidity
out. A significantly oversized system could result in it cooling off too
quickly, but my bet is 78F is the main issue, especially in Oregon. The
system most likely just isn't running enough.