Air-Conditioner + Outside Temp. gauge

As these buses use Radiator/compressed air, you needa heaten the engines prior to using the Noisy fan or silent radiator
However,the problem stands when its hot outside,and the fans just heaten up the bus as you drive at 80C engine temp,even the levers at Blue/Outern air

Would it be possible to implement some buses,especially newer ones with less-loud climas,and provide better results at inside temp?