How to include new HVAC as part of cost base when selling rental property?

Hi,

  In 2020, I have HVAC contractor installed a grand new HVAC system in my rental property. I sold this rental property in 2021.

  Here is my understanding:

  My rental property cost base = original purchase price – depreciation over years + cost of grand new HVAC system – one year depreciation of grand new HAVC system.

   Here is my question:

Within Turbo tax,  what I need to do to tell Turbo Tax to include cost of grand new HVAC system as part of cost base?

Thanks,

Bob