Yes, temperatures are nice to set in your car- it’s your very own climate that you can control! Sometimes though, what’s nice for us to enjoy isn’t always best for our cars. When you set a temperature in the control head of an HVAC system, what does it do to the car? Let’s find out… Seventy-two degrees could mean many different settings depending on the outside temperature, humidity and even the position of the sun—whether it’s rising, setting, or beating down the heat.
When a passenger decides that 70 degrees is a better temperature for their zone, things get even more complicated than before. Automatic Temperature Control (ATC) systems require a complex array of internal and external sensors that include ambient air temperature sensors, interior temperature sensors, outlet duct and evaporator temperature sensors, pressure sensors, humidity sensors, blend door position sensors and sunload sensors. Read more here