Is it just okey to input design,operating and ambient temperature only and installation temperature is not inputted. My reason is that the value of installation and ambient are just closed. For installation temperature 27 degree celsius and for ambient temperature 22 degree celsius.The differece is just 5 degree celsius.

I input at special execution parameters the value of ambient temperature which is 27.For extended operating temperatures, i only inputted the values for design and operating.For installation,it is being neglected.

Do my inputting strategy right?

Please give me nice idea.Thank you in advance.