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Application
Note
Maximizing Energy Savings for Bi-Level Lighting with
Manual-On Low Voltage Wall/Corner Mounted
Occupancy Sensing Controls
Overview
North America Headquarters
203 Cooper Circle
Peachtree City, GA 30269
P: 800-553-3879
F: 800-954-7016
By using an occupancy sensor configured for Manual-On control or Bi-level Automatic-On
(just one lighting level comes on automatically when occupancy is detected) energy savings
during occupied periods can be increased to 46-52%*. A recent study showed that Bi-level
Automatic-On saved the most energy because persons typically do not turn on the second
lighting load.
Technical Details
International Headquarters
20 Greenhill Crescent
Watford Business Park
Watford, Herts, WD18 8XG. UK
P: +44 (0)1923 495495
F: +44 (0)1923 228796
Lv(a)
a,b
a,b
a,b
SS
Service & Support Center
6 Green Tree Drive
South Burlington, VT 05403
P: 800-553-3879
F: 800-954-7016
Lv(b)
a
a,b
SP20-MV
b
SP20-MV
a,b
a,b
a,b
Diagram of space
• Zone A turns on automatically upon occupancy
• Zone B does not turn on unless the occupant presses the switch
Page 1 of 2
*California Lighting Technology Center, February 1, 2010
a,b
Application
Note
Wiring Example
North America Headquarters
203 Cooper Circle
Peachtree City, GA 30269
P: 800-553-3879
F: 800-954-7016
Service & Support Center
6 Green Tree Drive
South Burlington, VT 05403
P: 800-553-3879
F: 800-954-7016
International Headquarters
20 Greenhill Crescent
Watford Business Park
Watford, Herts, WD18 8XG. UK
P: +44 (0)1923 495495
F: +44 (0)1923 228796
Bill of Material
Catalog Number
Description
Quantity
OAWC-D-120-R
Low Voltage Wall/Corner Dual Technology Sensor
1
SP20-MV
Switchpack, 120/277V, 50/60 Hz
2
GMDS-*
Low Voltage Momentary Decorator Switch
2
*Available in white & Ivory
Relevant Codes
• CA Title 24 - Requires bi-level lighting control
• ASHRAE 2003 & 2006 - Requires bi-level lighting control
• Section 146 of California’s Title 24-2005
—— 20% Lighting Power Density Credit - Employ Manual-On or Bi-level Automatic-On in conjunction with multi-level circuitry and switching in commercial spaces less than or equal to 250 square feet, or in
any classroom, corridor, conference room or waiting room regardless of size
Conclusion
Manual-On control or Bi-level Automatic-On lighting control strategies maximize energy savings.
Page 2 of 2
ACC101044
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