Best Practice Guide for Office Buildings

OFFICE BUILDINGS Open Office • The best practice for open office areas is dependent upon the building size and the owner’s needs. For small, single floor office buildings or an open office area in a leased space, occupancy sensors are a good strategy. For larger, owner occupied, or multi-floor tenants, scheduling using lighting control panels is recommended because one time clock can control lighting on multiple floors. Combining both scheduled and occupancy sensor control offers the benefit and convenience of keeping lighting on during normal hours of operation, yet after hours allows occupancy based control for additional energy savings. • For maximum energy efficiency after hours, lighting control zones should be designed as small as reasonable so fewer lights are turned on by an occupant after hours and less energy is used. • When occupancy sensors are used in spaces with partitions, use ceiling-mounted ultrasonic sensors because they can detect motion over partition walls. Follow proper spacing guidelines for optimum sensor coverage (see page 49). Restrooms • Use ceiling mounted ultrasonic sensors for restrooms with stalls. Stairwells • Use an ultrasonic sensor mounted above the doorway, or door swing, to control stairwell lighting. Storage Closets • Use a digital time switch for allowing manual activation and to turn lights off automatically. Exterior Lighting Control • Use a lighting control panel with time clock and photosensor to turn lighting on at dusk and off at dawn. Turn nonsecurity lighting off earlier in the evening for energy savings. • Circuit lighting fixtures to be controlled in logical groups by the lighting control panel, according to the needs of the application. For example, circuit entry lighting separately so that it can turn on earlier than parking lot lighting. Whole-building Lighting Control Design • When designing lighting controls to meet individual space needs, one must recognize that spaces may be linked to an overall lighting control system. In a small office building, this may be a single lighting control panel and time clock located in an electrical room. In an office campus with multiple buildings, this may be multiple lighting control panels in each building sharing lighting control information over a dataline network - all centrally operated from a facility manager’s office. Additionally, these lighting control systems may be linked to mechanical systems for integrated control. • In buildings requiring multiple lighting control panels, it is more convenient to centralize the time clock and exterior photosensor in a lighting control panel. Use a dataline network to communicate time schedules and light level events to other lighting control panels in the system. • If the features of centralized lighting control programming, monitoring and trend analysis are needed (as would be typically needed for medium to large sized office buildings or multiple building sites), use a system with lighting control software that operates on a personal computer. 7 www.wattstopper.com • 800.879.8585 http://www.wattstopper.com

Table of Contents Feed for the Digital Edition of Best Practice Guide for Office Buildings

Best Practice Guide for Office Buildings Contents Lighting Control Best Practice Guide for Office Buildings Value of Lighting Control for Office Buildings Office Building Space Usage Influential Factors for Lighting Control Office Building Lighting Control Design Guidelines Office Building Best Practice Guide Roadmap Summary of Best Practices for Lighting Control in Office Buildings Buildings Conference Rooms Cubicles Hallways Kitchens Open Offices Private Offices Restrooms Stairwells Storage Closets Exterior Lighting Summary of Energy Codes

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