Last week on April 14, the temperature outside reached 78 deg F. Heat trapped by our roof, windows and walls caused the temperature inside the house to rise to 85 deg F (30 C) from early afternoon through the next day.
I thought it prudent to turn on the central air conditioning unit.
Today (April 18, 2022), the outside temperature is 43 deg F and internally it is 45 F (7 C). I switched the Central Heating on.
The Freon in my antiquated AC system is flummoxed.