Question: A building manager plan to replace all 10 CV (constant speed) air handling units (AHUs) with a 2-speed variable frequency drives (VFDs) in the building

A building manager plan to replace all 10 CV (constant speed) air handling units (AHUs) with a 2-speed variable frequency drives (VFDs) in the building complex. The existing AHUs are rated at 40 kW each. They operate for 5,000 hr/year. The VFD operates at two speeds: At 100 percent of its speed, 2,000 hr/year (i.e., 40 percent of total operating hours) At 50 percent of its capacity, 3,000 hr/year (i.e., 60 percent of total operating hours) Determine the measure's energy savings for the CV to VAV conversion for all the AHUs. Question 12 Select one: A. 1,000,000 kwh/year B. 200,000 kwh/year C. 110,000 kwh/year D. 900,000 kwh/year

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