I have a carrier fk4 with a 38tra. The last time it was serviced, the
tech changed the settings on the air handler's configuration taps in
response to my asking if there was a setting that would reduce the
humidity, but the change resulted in the unit running for about 35
minutes and being off for about 15 and very uncomfortable humidity.
Before that it was on maybe 13-15 minutes and off about 12-13.

Does anyone know what the best settings should be for removing humidity
and improving comfort without the unit running for so long? Right now
it's set as follows:

size: 030
type: AC
AC/HP cfm adjust: Low
on/off delay: 30/90
yellow and red wires on y/y2

I thought of changing the "system type" to HP comfort or HP EFF, but
didn't know whether that would be correct with the 38tra.

There's something rattling around in the back of my head about whether
the yhellow wire should be on Y1 or y/y2.

The other thing it's been doing is blowing out warm air when it first
comes on. Hadn't been doing that before either.

Hope this had made sense. Thanks in advance for any suggestions.

"al" wrote in message
oups.com...
I have a carrier fk4 with a 38tra. The last time it was serviced, the
tech changed the settings on the air handler's configuration taps in
response to my asking if there was a setting that would reduce the
humidity, but the change resulted in the unit running for about 35
minutes and being off for about 15 and very uncomfortable humidity.
Before that it was on maybe 13-15 minutes and off about 12-13.

Does anyone know what the best settings should be for removing humidity
and improving comfort without the unit running for so long? Right now
it's set as follows:

size: 030
type: AC
AC/HP cfm adjust: Low
on/off delay: 30/90
yellow and red wires on y/y2

I thought of changing the "system type" to HP comfort or HP EFF, but
didn't know whether that would be correct with the 38tra.

There's something rattling around in the back of my head about whether
the yhellow wire should be on Y1 or y/y2.

The other thing it's been doing is blowing out warm air when it first
comes on. Hadn't been doing that before either.

You don't want to change the system type. You have an a/c. Not a heat pump.

You have to be color blind when it comes to low voltage wiring, but why is
there a red and a yellow wire on Y1???

Best thing to do is tell the guy to put it back the way it was. If it's not
removing the humidity properly, then it is not charged correctly or it's not
SIZED correctly. You could get a Thermididstat (Carrier has them). They will
bring the unit on to remove humidity even if it's cool enought in the house.

Dr. Hardcrab wrote:
"al" wrote in message

size: 030
type: AC
AC/HP cfm adjust: Low
on/off delay: 30/90
yellow and red wires on y/y2

You have to be color blind when it comes to low voltage wiring, but why is
there a red and a yellow wire on Y1???

Best thing to do is tell the guy to put it back the way it was. If it's not
removing the humidity properly, then it is not charged correctly or it's not
SIZED correctly. You could get a Thermididstat (Carrier has them). They will
bring the unit on to remove humidity even if it's cool enought in the house.

Sorry, the red and yellow are on y/y2. But it seems to me that a
carrier rep told me at one point a couple of years ago to put the
yellow on y1. But that could just be my middle aged memory playing
tricks on me. I suppose it could have been to change *from* y1 to
y/y2. I've thought of a thermidistadt, but the original setting wasn't
all that bad. I had just wondered at the time if it was optimal, and so
the tech changed it.

Anyway, thanks for the input...