i always set my thermostat at the 3/4 level ngayong tag-init. fan lang ang nilalakasan ko pag bagong andar. the thermostat only regulates the time the compressor turns on or off. the coolness of the air is constant whether it is turn to full or halfway (wag lang sa minimum). the sensor na nakatutuk sa evaporator coils senses the temperature of the coil (not the cabin). kinda like a refrigerator.