• Minimum requirements necessary to render HVAC components clean. • Verification of cleanliness through inspection and/or testing in accordance with NADCA Standards. HVAC System Component Inspections and Site Preparations • HVAC System Component Inspections • Site Evaluation and Preparations • Inspector Qualifications General HVAC System Cleaning Requirements • Containment • Particulate Collection • Controlling Odors • Component Cleaning • Air-Volume Control Devices • Service Openings • Ceiling sections (tile) • Air distribution devices (registers, grilles & diffusers) • Air handling units • VAV, Dual duct boxes, blowers and exhaust fans Contractor shall: • Clean all air handling units (AHU) internal surfaces, components and condensate collectors and drains. • Put operative drainage system in place prior to beginning wash down procedures. • Clean evaporator fins. • Create service openings as necessary to accommodate cleaning of otherwise inaccessible areas. • Mechanically clean all duct systems to remove all visible contaminants.
