1. When to turn on the passenger car air conditioner.
Regardless of whether the temperature inside the car is very high in the sun, or the car is parked in the garage without being exposed to the sun, the air conditioner can be turned on immediately after the engine speed stabilizes for more than ten seconds after the car is started. At this time, the air volume can be increased, and all four windows can be lowered. When the air volume is high, the dirt and hot air will be blown out, and it can be adjusted to normal air volume after about a minute or two.
2. When to turn off the car air conditioner.
It is recommended to turn off the AC switch of the air conditioner two or three minutes before arriving at the destination. At this time, do not turn off the air volume switch, and let the blower continue to blow air. The purpose of this is to let the wind dry the air conditioning evaporator and prevent it from breeding bacteria.
3. In which direction should the wind blow.
According to the principle of cold air sinking, the air conditioner should blow upwards or horizontally, that is to say, it is best to adjust the air outlet to a horizontal or slightly upward direction, but not directly towards the driver. If it blows downward, people in the back seat may feel hot.
