Orange County NC Website
DocuSign Envelope ID: B94F2D40-3B3C-47A7-86C2-6F1 B4F92C62C <br /> Orange County Emergency Services Building Construction Documents <br /> spring device or screw to ensure against air leakage. Where openings are provided in insulated <br /> ductwork, install insulation material inside a metal ring. <br /> F. Locate ducts with sufficient space around equipment to allow normal operating and maintenance <br /> activities. <br /> G. Use double nuts and lock washers on threaded rod supports. <br /> H. Connect terminal units to supply ducts with hard duct. Maintain minimum three (3)feet or three (3) <br /> duct diameters (whichever is greater) of straight duct prior to inlet of box. <br /> I. At exterior wall louvers, seal duct to louver frame and install blank-out panels. <br /> END OF SECTION 23 31 00 <br /> PDC Project 18102 HVAC DUCTS AND CASINGS 2331 00-3 <br /> 12/17/2018 <br />