For systems with near-equal first cost, a registered PE+owner+proforma+contract path most defensibly uses which of the following (conceptual) as a primary LCC+NPV+O&M selection filter+design basis?
Choices
- (A) Select on lowest fan RPM only+always+...
- (B) Select on lowest EER+single point+in all+...
- (C) Blower door@50 Pa as only HVAC+or+in all+...
- (D) LCC+NPV+OPEX+O&M+utility+spares+maintenance+failure+service+owner risk+PE stamp+design-basis+exceptions
Correct answer: (D)
LCC+NPV+OPEX+O&M+utility+spares+maintenance+failure+service+owner risk+PE stamp+design-basis+exceptions
Explanation
LCC+NPV+OPEX+O&M+spares+utility+failure+risk+PE-stamped design basis—capstone for equal first-cost options.