Quote:
Originally Posted by retiredguy123
My system, and many others in The Villages, do not have a reheat function. So, they are not true dehumidifiers. They reduce humidity by "overcooling" the house to reduce humidity. So, if you set the temperature at 78 degrees, and the humidity at 60 percent, the system will cool the house down to about 75 degrees when the humidity rises above 60 percent. This is a compromise that works fine for snowbirds who want to save a few dollars on electricity by controlling the humidity with a higher than desired temperature. But, if you are living in the house, you want to maintain a comfortable temperature that stays at the setpoint. That is why I turn off the dehumidify feature on the thermostat. It is an optional feature. If you want to control both the temperature and the humidity, you need a true dehumidifier with a reheat function.
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Running the compressor more by lowering your temperature setpoint will remove more water vapor and send it down the drain but may or may not lower relative humidity. (both the numerator and denominator are lowered).
Does it lower your relative humidity as measured by the thermostat or HVAC controller?
I have programmed commercial controls for HVAC. Heater controls are based on temperature and relative humidity. No dehumidifiers needed for human comfort in most regions. They are needed for controlling the environment in sensitive areas such as a laboratory or computer/server rooms.