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This chapter is intended to be an overview of HVAC security considerationsrelative to natural events, accidents, terrorism, and national threats, as wellas addressing chemical, biological, radiological, and explosive (CBRE) incidentsthat do not cause major structural damage to a building or its infrastructure.This added focus on CBRE incidents, either accidental (e.g., an industrial spill)or premeditated, is intended to be a general overview and not used as designguidelines.OWNER’S PROJECT REQUIREMENTSRISK EVALUATIONHVAC SYSTEM SECURITY AND ENVIRONMENTAL HEALTH AND SAFETYDESIGNCHEMICAL INCIDENTSBIOLOGICAL INCIDENTSRADIOLOGICAL INCIDENTSEXPLOSIVE INCIDENTSNo. of Pages: 13A62, Ultraviolet Air and Surface TreatmentThis chapter discusses common approaches to the applicationof short-wave ultraviolet (UVC) products. It also surveys the most recent UVCdesign guidelines, standards, and practices and discusses energy use and economicconsiderations that arise when applying UVC systems. Other UV-based HVACapplications, such as photocatalytic oxidation (PCO), are not discussed in thischapter.FundamentalsTerminologyUVGI Air Treatment SystemsHVAC System Surface TreatmentEnergy and Economic ConsiderationsRoom Surface TreatmentSafetyInstallation, Start-Up, and CommissioningMaintenanceNo. of Pages: 17

Citation: 2019 ASHRAE Handbook¿¿¿HVAC Applications