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z z is offline
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Default high humidity with newly installed system


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?


First, I admit I know nothing about all the technical details, but
since nobody has replied yet:

Most sources seem to recommend RH 30-50%. I just bought a rh meter a
couple of weeks ago so I'm still interested in watching it in different
rooms, with my AC off it's often over 50% this time of year, sometimes
over 60% without discomfort. I have no doubt that's happy time for
molds, though. My old decrepit AC struggles a lot to keep up, so I
don't get a real stable humidity level when it's on. I keep the
dehumidifier in the basement at 40%, and that's made a huge difference
in livability.

Dehumidification is related to how long the AC is on. I.e., if AC is
oversized and only goes on briefly, it won't dehumidify as much as one
that is undersized and struggles and is on all the time. I'm sure that
relates to your hard data you give on your system, but I'm not sure
exactly what it means in terms of OK installation or not.