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Finding the Right Balance for VAV Energy Savings with Multiple-Zone VAV Systems

Fan pressure optimization and supply-air temperature reset are both energy conservation measures, prescriptively required by ASHRAE Standard 90.1 (see PDF).

They can be implemented relatively easily with modern controls. Both have been used simultaneously to significantly reduce the energy usage and operational cost of multiple-zone VAV systems. Not using one or both should be the exception. Too often energy savings is left on the table.


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