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Orange County Health Department Improvements Smith Sinnett /2024008 <br />Hillsborough,NC Orange County Asset Management Services <br />LIGHTING CONTROL DEVICES 26 09 23 - 2 <br />2.02 OCCUPANCY SENSORS <br />A Manufacturers: <br />1.Lutron Electronics Company,Inc. <br />2.Sensor Switch Inc. <br />3.WattStopper. <br />4.Approved Equal. <br />5.Source Limitations: Furnish products produced by a single manufacturer and obtained from a single <br />supplier. <br />B All Occupancy Sensors: <br />1.Description: Factory-assembled commercial specification grade devices for indoor use capable of <br />sensing both major motion,such as walking,and minor motion,such as small desktop level <br />movements,according to published coverage areas,for automatic control of load indicated. <br />2.Sensor Technology: <br />a.Passive Infrared (PIR)Occupancy Sensors: Designed to detect occupancy by sensing movement <br />of thermal energy between zones. <br />b.Ultrasonic Occupancy Sensors: Designed to detect occupancy by sensing frequency shifts in <br />emitted and reflected inaudible sound waves. <br />c.Passive Infrared/Ultrasonic Dual Technology Occupancy Sensors: Designed to detect occupancy <br />using a combination of both passive infrared and ultrasonic technologies. <br />3.Provide LED to visually indicate motion detection. <br />4.Operation: Unless otherwise indicated,occupancy sensor to turn load on when occupant presence is <br />detected and to turn load off when no occupant presence is detected during an adjustable turn-off delay <br />time interval. <br />5.Dual Technology Occupancy Sensors: Field configurable turn-on and hold-on activation with settings <br />for activation by either or both sensing technologies. <br />6.Passive Infrared Lens Field of View: Field customizable by addition of factory masking material, <br />adjustment of integral blinders,or similar means to block motion detection in selected areas. <br />7.Turn-Off Delay: Field adjustable,with time delay settings up to 30 minutes. <br />8.Sensitivity: Field adjustable. <br />9.Adaptive Technology: Field selectable;capable of self-adjusting sensitivity and time delay according <br />to conditions. <br />10.Isolated Relay for Low Voltage Occupancy Sensors: SPDT dry contacts,for interface with HVAC <br />systems. <br />C Wall Switch Occupancy Sensors: <br />1.All Wall Switch Occupancy Sensors: <br />a.Description: Occupancy sensors designed for installation in standard wall box at standard wall <br />switch mounting height with a field of view of 180 degrees,integrated manual control capability, <br />and no leakage current to load in off mode. <br />b.Unless otherwise indicated or required to control the load indicated on drawings,provide line <br />voltage units with self-contained relay. <br />c.Where indicated,provide two-circuit units for control of two separate lighting loads,with separate <br />manual controls and separately programmable operation for each load. <br />d.Finish: Match finishes specified for wiring devices in Section 26 27 26,unless otherwise <br />indicated. <br />2.Dual Technology wall switch occupancy sensors: Capable of detecting motion within an area of 35 x <br />30 foot area for major motion and a 20 x 15 foot area for minor motion. <br />a.Products: <br />1)Single Button:Wattstopper DW-100. <br />2)Two Button:Wattstopper DW-200. <br />Docusign Envelope ID: 2D852F9B-A7CF-462A-9536-444A53AA848A