On Wed 22 Jul 2009 11:38:46p, The Daring Dufas told us...

dpb wrote:
Wayne Boatwright wrote: ...
When an AC system is properly designed and sized for the space, it
should actually be running more than it is off. One of the main
reasons
is to allow the unit to remove as much humidity as possible. ...

In arid/desert country, dewpoints when temperatures are in the 100s may
be as low as in the 20s-30s range (RH may be 10%). Ain't much point in
worrying about taking out "excess" humidity...even if didn't condense
any water, RH of cooled air might only be in the 40-50%RH range...

--

That's why swamp coolers work there, ain't it?

TDD


They work reasonably well during the non-monsoon season, especially if
you're not expecting extreme cooling and don't mind a fair amount of
humidity introduced into your living space. They definitely beat having
nothing. For economy reasons, many people have both swamp coolers and AC,
and use each according to their peak operation during the varyiing humidity
conditions.

--
Wayne Boatwright
------------------------------------------------------------------------
If soup isn't hot enough to make a grown man wince, it's
undrinkable. Grey Livingston