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Complete Compiled Specification.pdf - Peck Ormsby Construction

Complete Compiled Specification.pdf - Peck Ormsby Construction

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T. Ultrasonic microphone receiver frequency shall be 25 KHz or greater and shall be<br />

temperature and humidity resistant.<br />

1. All sensors shall provide a red LED indication light to verify that motion is being<br />

detected and that the unit is working.<br />

U. All ultrasonic sensors shall comply with the State of California Safety and Health<br />

Requirements. Decibel levels for ultrasonic sensors shall comply with the following California<br />

Energy Commission criteria:<br />

Midfrequency of Sound Minimum dB level within<br />

Pressure Third Octave Third Octave Band (in dB<br />

Band (KHz) reference 20 micropascals)<br />

Less than 20 80<br />

20 or more to less than 25 105<br />

25 or more to less than 31.5 110<br />

31.5 or more 115<br />

The Contractor shall certify in writing that installed sensors comply with the specified<br />

California Energy Commission criteria for ultrasonic sound.<br />

V. All sensors shall have no leakage current in OFF mode and shall have voltage drop<br />

protection.<br />

W. Sensors shall be suitable for N.E.C. 725 Class 2 wiring and use plenum cable where<br />

approved. Where plenum cable is not approved, provide conduit to within 6 inches of sensor<br />

location.<br />

2.7 POWER PACKS:<br />

A. Power Packs shall be mounted on external J boxes and be an integrated self-contained unit<br />

consisting of a load switching relay and a transformer.<br />

B. Relay Contacts shall have ratings of:<br />

10A - 120 VAC Tungsten<br />

20A - 120 VAC Ballast<br />

15A - 277 VAC Ballast<br />

C. Relay contacts shall be isolated.<br />

D. Power Packs: Wattstopper A-120E, A-277E<br />

E. Between sensors and controls units shall be three (3) conductors, 18 AWG, stranded U.L.<br />

Classified, PVC insulated or TEFLON jacketed cable approved for use in plenums. One<br />

sensor shall be capable of driving four Power Packs.<br />

F. Enclosures for Power Packs shall be NEMA I construction with mounting and barriers to<br />

provide separation between line and low voltage wiring or a standard four (4") inch junction<br />

box with control unit mounting to cover plate with ! inch knockout. Boxes not located above<br />

accessible ceilings shall be painted to match finish color of mounting surface.<br />

G. Occupancy sensors shall have calibration at the occupancy sensor head, not at the power<br />

pack above the ceiling.<br />

SEGO LILY ELEMENTARY SCHOOL CLASSROOM ADDITION March 2, 2009<br />

OCCUPANCY SENSED LIGHTING CONTROL 16550-5

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