ATTACHMENTS AND OPTIONS AIR CONDITIONER AIR CONDITIONER CONTROLS 0. Cooling 0. If you smoke when the cooler is on, the smoke may start to hurt your eyes. Use both ventilation and cooling for a short time to remove the smoke. When running the air conditioner for a long time, use ventilation and cooling together once an hour. Cooling with Care 0. When the cooler is on, set the temperature so that it feels slightly cool when entering the cab (5 to 6єC (41 to 42.8єF) lower than the outside temperature). This temperature difference is considered to be the most suitable for your health. Adjust the temperature properly. 6-7