that guy wrote:
I recently had a geo comfort pardyne system installed. i have 3 ton
horizontol loop field with a 2.5 ton paradyne system.

i have air handler in attic (no basement) with everything insulated.

my issue is that my weather station in my house shows R.H. from 53-65%.
I complained to the installer and he had the supply rep come out to my
house with him and they went over everything.

I am getting some condensate from the drain, but not sure how much
itshould be. the thing cools great no problems. the unit is now short
cycling. I checked the coil and there is no air bypassing around the
coil, and even thought the istallers left some blown fiber glass
insulation in duct there was VERY little on coil.

the supply rep tells me that the "TXV" valve is always trying to
balance the freon and where you used to get 20 degree temp drop across
the coil you now get more like 14 degrees and so just can't de-humidify
like the old a/c systems.

he says I should not worry about the R.H., his instruments show it was
around 54%.

I have not paid the installer yet because of this and want to pay if I
should but don't want to if something needs to be fixed because I will
not have a "carrot" then.

I've read where humidty levels above 50% can lead to mold, dust mite
issues, etc. am I just being paranoid and should pay?

Probably...

Not sure exactly what you mean by "short cycling" -- if you mean the
unit only runs for very short periods at a time in maintaining the
temperature setpoint, unless the outside temperature at the present is
quite cool that would indicate perhaps the unit is oversized for the
house and so isn't running long enough to have time to adequately
dehumidify.

How hot is it outside and what is outside humidity? If it's cool and
very damp, I wouldn't worry. If it's very hot and damp, that's a
little concern. If it's very hot and outside humidity isn't much
higher than inside, _then_ I think the sizing calculations (there were
sizing calculations weren't there?) may have been in error.

It would sound like little real reason to not pay unless there is some
indication of a gross oversizing. What was the previous unit this one
replaced?

BTW, I had a WaterFurnace brand geothermal unit in previous location
and like it very much...I think you will be pleased.

Oh, and the above just reminded me of one thing when we did ours--it
was sized on basis of heating capacity more than cooling so it had the
ability to essentially eliminate the strip heaters at all. Depending
on your climate, could a similar scenario have taken place here so you
do have some excess capacity?

Also, do you have a variable or multiple speed compressor perchance?
If so, could it be arranged to operate at lower end so could increase
the cycle time and increase dehumidification some if it is a comfort
issue? As for the mold, w/o a basement I wouldn't think it a major
problem at that level unless you're having this high a inside RH and
the outside conditions are not quite high humidity at the moment.

All this is of course subjective--I don't know where to point you to a
real definitive source on the web for judging whether is "good",
"acceptable", or "poor".