1. After starting the car, wait approximately 8-15 minutes for the water temperature to return to normal. You can now turn on the heater. (This is when the water temperature reaches the middle.)
2. Adjust the air conditioning mode to recirculate inside the car.
3. Switch to warm air mode. Some cars will have a red area, while others will have a sun.
4. Turn on the AC.
5. Adjust the air conditioning setting to the appropriate setting. Bus Ac Precautions
1. Do not turn on the AC immediately after exposure to the sun.
After a car has been exposed to the sun, the temperature inside the car will generally be very high. In this situation, do not turn on the AC immediately. It is best to open the windows first to ventilate the car and wait for the heat to dissipate before getting in and turning on the AC.
2. Turn off the AC before turning off the engine.
This allows the temperature inside the AC ducts to return to normal, eliminating the temperature difference with the outside air. This also keeps the AC system relatively dry. If you do not turn off the AC first, the humidity can easily cause mold to grow in the ducts.
How to start a bus AC in snowy weather
How to start a bus with air conditioning in snowy weather: First, start the vehicle and preheat it, which takes about 8 to 15 minutes. To turn on the air conditioning, press and hold the auto button. The AC will automatically turn on. In winter, the AC typically operates in warm mode, so the AC button should be turned off immediately. The AC button is the cooling mode. Turning the AC control button to the red position switches the system to heating.