Are My Carrier Air Conditioners Oversized ?

[DaveCoolFl]

Those runtimes are way too short!
There isn't even enough runtime to reach an optimally cold coil; & virtually no runtime for dehumidification...

Is the RM-TH where supply air could be affecting it?

You need a SWING or cycles per hour adjustable setting RM-TH so you can achieve longer on-time run-times.

The blower may already be set for 350-CFM per/ton of cooling; if not, I would try that setting for a colder coil & longer runtimes; for better humidity control.

Thanks, I thought run times were low.

Thermostats are located about 2' horizontally away from ceiling register. Register blows away from thermostat.

My thermostats do not have a CPH setting (that I am aware of), and I know they don't have humidity control. Do you have a recommendation for thermostats with these features which will work with my AC's?

[Southern Mech]

My personal opinion is CPH is not fixing the problem.

In the commercial world that is building automation controls. Dont try and fix a building problem with controls, you will end up with an automated problem.

Most new digi stats have Cph setpoints

[Shophound]

Lower your thermostat to 76 degrees and see what that does for the humidity in the house.