In the form it was mentioned "Provide supporting documentation for non-default Life value(s) in Table. Refrigerant Impact Calculation such as a manufacturers' life guarantee and equivalent long term service contract"
I assume if I am usig life values mentioned in the LEED handbook so nothing is non-default value.but what is meant by the other part "Refrigerant Impact Calculation such as a manufacturers' life guarantee and equivalent long term service contract"