2. Leviton, your single source for energy management lighting control.

3. Energy Conservation Codes “Lighting Automation is now becoming the rule rather then the exception”…. According to a new market research study conducted by Ducker Research. The study found that lighting automation is being used in a majority of the new construction and renovation projects in the office and school markets. Approximately 65% of these projects feature lighting automation. The California Energy Commission’s Pier Lighting Research Program, in support of Project 5.4: DALI Lighting Control Device Standard Development, results of a study conducted by Ducker Research, 2003.

4. Occupancy sensors

5. What they do

6. Occupancy Sensors For Every Application Occupancy areaEnergy savings Private office13-50% Classroom40-46% Conference room22-65% Restrooms30-90% Corridors30-80% Storage areas45-80%

7. Variables ► Technology ► Sensitivity ► Time delay ► Self calibrating ► Coverage area ► Mounting ► Special features

8. Technology ► PIR ► Ultrasonic ► Dual technology

9. Passive infrared (PIR) ► Senses differences in heat ► Requires line of sight ► Lens defines coverage area as series of fan-shaped zones ► Gaps widen with distance, reducing sensitivity Graphic courtesy of New Buildings Institute

10. Passive Infrared (PIR) Pyrometer Sensor 9.8 Microns Infrared Light from Body Heat Major Body Motion

11. LAYOUT ALERT KEEP 6’ AWAY FROM INCANDESCENT LIGHT SOURCES

12. NATIONALLY RECOGNIZED TECHNOLOGY AS DEPICTED IN THE SYNDICATED COMIC STRIP DILBERT “FALSE OFF” is the biggest concern. “FALSE OFF” is the biggest concern.

13. Ultrasonic The sensor is not a “line of sight” device since the transmitted energy signals can bounce or wrap around objects. Sensors transmit ultrasonic frequencies (32kHz - 40kHz) and monitor changes in the return signal in order to detect occupancy. Uses doppler principal

14. Ultrasonic ► Uses Doppler principle to detect motion ► Line of sight not required ► Greater sensitivity Transmitter Receiver 32kHz or 40kHz Sound Sensitive to Hand Motion Motion causes Doppler Frequency Shift

15. Ultrasonic Coverage Pattern Note AIR REGISTER SENSOR 6’

16. No gaps, greater sensitivity (but more vulnerable to nuisance switching) Ultrasonic “FALSE ON” is the biggest concern

17. Dual technology ► PIR and ultrasonic methods ► Greater reliability ► Ideal when high degree of detection needed ► Standard for new construction ► Another technology combines PIR and acoustic

18. Variables ► Technology ► Sensitivity ► Time delay ► Self calibrating ► Coverage area ► Mounting ► Special features

19. Sensitivity ► Major vs. minor motion coverage ► How much movement causes sensor to turn on lights ► Changing sensitivity changes coverage ► Field adjustable to fit application

20. Sensitivity MethodPIRUltrasonic Detects hand movementUp to 15 ft.Up to 25 ft. Detects full body movement Up to 40 ft. Coverage area300-1000 sq.ft.275-2000 sq.ft. Highest sensitivityMotion lateral to sensorMotion to and from sensor

21. Variables ► Technology ► Sensitivity ► Time delay ► Self calibrating ► Coverage area ► Mounting ► Special features

22. Time delay ► Longer delay: Less switching and false-OFF, longer lamp life, less energy savings ► Shorter delay: Higher energy savings, shorter lamp life ► Recommended time delay settings ► Instant start vs. programmed start ballasts

23. Variables ► Technology ► Sensitivity ► Time delay ► Self calibrating ► Coverage area ► Mounting ► Special features

24. Self-adjusting sensors ► Require little or no adjustment of sensitivity and time delay settings ► Micro-chip within sensor monitors space and adjusts accordingly ► Starts adjusting from first day of installation

25. Variables ► Technology ► Sensitivity ► Time delay ► Self calibrating ► Coverage area ► Mounting ► Special features

26. Coverage ► Range (ft.), field of view (°) coverage area (sq.ft.) ► Pattern based on technology used ► PIR 300-1,500 sq.ft., Ultrasonic 500-2,000 sq.ft. ► Many coverage sizes available

27. Variables ► Technology ► Sensitivity ► Time delay ► Self calibrating ► Coverage area ► Mounting ► Special features

28. Mounting Sensor TypeApplicationsNotes Ceiling mountPartitioned offices, copy & file rooms, conference rooms, restrooms (US only), garages (PIR only) Most effective with drop ceiling tile for mounting Provides for 360° coverage Corner mount/ Wide view Large office spaces, conference rooms Mount high on wall Wall switchPrivate offices, copy rooms, residences, closets Especially suitable for retrofits, but not with obstructions Source: 2001 Advanced Lighting Guidelines, New Buildings Institute

29. Variables ► Technology ► Sensitivity ► Time delay ► Self calibrating ► Coverage area ► Mounting ► Special features

30. Special features ► Manual ON / Auto off ► Manual OFF override ► Combination dimmer/sensor ► Second relay for bi-level switching ► Daylight switching ► Isolated relay (HVAC) ► Network connectivity

31. Specification Considerations ► Require factory layout of sensors at time of submittal to determine adequate coverage and location of sensors ► Occupancy sensors shall be tested after installation of furniture and recalibrated in the field ► Self-calibrating sensors ► Dual technology sensors for most areas, partitioned bathrooms should have ultrasonic sensors ► Zero sine wave crossing of power pack for long relay life

32. Calibration and testing “Electrical Subcontractor shall perform the below functional testing under the observation of the Commissioning Authority, who will record the results of the functional test procedures. “All specified occupancy sensor functions and features, including time delay and sensitivity, shall be set up, debugged and verified as fully operable.“All specified occupancy sensor functions and features, including time delay and sensitivity, shall be set up, debugged and verified as fully operable. “Occupancy sensor placement and orientation shall be verified as matching construction drawings and/or specifications.“Occupancy sensor placement and orientation shall be verified as matching construction drawings and/or specifications. “The sequence of operation for all occupancy sensor features and modes shall be tested to confirm match to design specifications and acceptable operating practice for all conditions.”“The sequence of operation for all occupancy sensor features and modes shall be tested to confirm match to design specifications and acceptable operating practice for all conditions.” Adapted from “Section 260800, Electrical Testing and Commissioning,” Performing Arts Center, City College San Francisco

33. Performance test ► Entry test: Sensor should turn on lighting within 2 steps of entering space; should not detect outside control zone ► Hand motion test: Sensor should turn if you wave hand different directions within minor motion area ► Walk and wave your hand in different places of the room to find spots of poor coverage

34. Troubleshooting

37. Refer to, “Lighting Controls Association Guide to Troubleshooting Nuisance Switching in Occupancy Sensors,” for helpful guidance on troubleshooting potential problems related to false-ON and false-OFF triggering. www.aboutlightingcontrols.com

38. Any questions?

39. Wireless Occupancy Sensor no wires, no batteries no problem

41. Leviton, your single source for energy management lighting control.