Yes!  You have access to make changes to the factory defaults.  Keep in mind that some of the parameters are password protected.  Many of the system parameters are linked.  For example, if you change the primary set-point (Stp) of the system, you also change when the heaters kick on.  It is important to understand system operation before you start changing system defaults.  You can search for our Operation Logic Diagrams for more specific information.

see also: Customer Service Bulletin 2015_September: Changing Cooling Set-point from 77-79