by Steve_Cox » Tue Oct 30, 2007 12:22 am
I too have a 5000 btu AC in my tear and have had a humidity problem in the past. I ran some tests last September here in NE Florida on a day the temps were in the 90's and the humidity was 88 %. Here is what I found and what I did to stop the problem.
All tests were run with both side windows opened just a little for fresh air. I ran 4 tests, here are the results of the first and last as I was working my way toward the desired results.
Test 1.
AC on high cool.
TD 90 degrees at start
Humidity 88%
Dew point 86 degrees
One hour later
Temp at AC set point of 70 degrees
Humidity at 85 %
dew point 65 degrees (felt really damp, some condensation on ceiling)
Last test - I restricted the air flow into the front of the AC using some 1 micron polyester filter media that slowed the air flow to about 1/3 its normal flow.
Start of test conditions same as test 1.
One hour later
Temp at AC set point of 70 degrees
Humidity at 52%
Dew point 51.5 degrees
So, slowing the flow of air over the cooling coil will remove more moisture in the air, and it seemed to me that it was just more comfortable to not have the AC blowing as much air. I made sure I didn't just block part of the cooling coil off, but restricted the flow of air over the whole face of the coil. Hope this helps someone.
Steve