15 to 20 degrees air temperature difference is what an a.c. will do. 75 degrees return air should be 60 degrees in the supply. If your machine is in that range it is working fine and is cooling all it is ever going to cool. Hope this helps!!
If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79
Answers & Comments
15 to 20 degrees air temperature difference is what an a.c. will do. 75 degrees return air should be 60 degrees in the supply. If your machine is in that range it is working fine and is cooling all it is ever going to cool. Hope this helps!!
If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79
Thank you Thomas