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DocuSign Envelope ID: 9826C043- 4C32- 49CD- A4CC- DC28ABAB7CE7 <br />SECTION 237800 - IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT <br />G. Fasteners: Stainless -steel rivets or self- tapping screws. <br />H. Adhesive: Contact -type permanent adhesive, compatible with label and with substrate. <br />Duct Label Contents: Include identification of duct service using same designations or abbreviations <br />as used on Drawings, duct size, and an arrow indicating flow direction. <br />1. Flow- Direction Arrows: Integral with duct system service lettering to accommodate both <br />directions, or as separate unit on each duct label to indicate flow direction. <br />2. Lettering Size: At least 1 -1/2 inches high. <br />2.5 STENCILLED PAINTED LABELS <br />A. Material: Spray paint suitable for application on piping, ducts, and equipment, both insulated and <br />uninsulated. <br />B. Letter color: Black or other color contrasting with background surface. <br />C. Minimum Label Size: Length and width vary for required label content. <br />D. Minimum Letter Size: At least 1 -1/2 inches high. <br />E. Contents: As described in this section for piping, ducts, and equipment. <br />PART 3 - EXECUTION <br />3.1 PREPARATION <br />A. Clean piping and equipment surfaces of substances that could impair bond of identification devices, <br />including dirt, oil, grease, release agents, and incompatible primers, paints, and encapsulants. <br />3.2 EQUIPMENT LABEL INSTALLATION <br />A. Install or permanently fasten labels on each major item of mechanical equipment. <br />B. Locate equipment labels where accessible and visible. <br />3.3 PIPE LABEL INSTALLATION <br />A. Locate pipe labels where piping is exposed or above accessible ceilings in finished spaces; machine <br />rooms; accessible maintenance spaces such as shafts, tunnels, and plenums; and exterior exposed <br />locations as follows: <br />1. Near each valve and control device. <br />2. Near each branch connection, excluding short takeoffs for fixtures and terminal units. Where <br />flow pattern is not obvious, mark each pipe at branch. <br />3. Near penetrations through walls, floors, ceilings, and inaccessible enclosures. <br />4. At access doors, manholes, and similar access points that permit view of concealed piping. <br />5. Near major equipment items and other points of origination and termination. <br />6. Spaced at maximum intervals of 50 feet along each run. Reduce intervals to 25 feet in areas <br />of congested piping and equipment. <br />7. On piping above removable acoustical ceilings. Omit intermediately spaced labels. <br />3.4 DUCT LABEL INSTALLATION <br />A. Install self- adhesive duct labels with permanent adhesive or stenciled painted labels on air ducts. <br />Reece, Noland & McElrath, Inc. 237800-3 Orange County Board of Elections <br />Orange Co., NC 05/04/18 <br />