Garage DCV System Case Study: Donatello Hotel, San Francisco A 91.6% reduction in baseline energy consumption despite a 185% increase in garage fan runtime The Property The Donatello is a boutique hotel in the heart of San Francisco's shopping and theater district and nearby Union Square. The property possesses a four-story parking garage that accommodates approximately 150 hotel guest vehicles. The garage is open to hotel guests and the public seven days a week. The Code Adherence Challenge Recent revisions to the California Energy Code (Title 24) require commercial garages in properties with occupants (residents, guests, shoppers, employees, et al.) to run their garage ventilation systems during building-occupied hours. As such, simply shutting o

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