1. Building Lighting Controls
Energy Savings & Code Requirements for Your Building
Presented by:
Alyssa Weber, EIT, LEED AP BD+C
Controls Manager
Visual Interest

2. How are Lighting Controls Utilized in Your Building?
What type(s) of systems are you working with?
Centralized
Distributed
Standalone sensors/switches
Switching or dimming
What are the advantages/disadvantages of your system(s)?
What are the primary issues you have with lighting controls in your building?
What occupant issues do you deal with as a result of lighting control systems?
How often are you renovating your building/spaces?

3. Lighting Control Best Practices: Standalone Lighting Control
Occupancy sensors, daylight sensors, local dimmers & switches.
Advantages:
Simple to install and maintain
Short wiring runs
No complicated programming!
Disadvantages:
No global override or sweep on/off
Simple on/off/dim control – advanced programming functions typically not available
Does not meet requirements of new energy codes for every application

4. Lighting Control Best Practices: Networked Centralized or Distributed?
Networked Centralized Lighting Control: Relay or Dimming Panels
Advantages:
Centrally located equipment - ease of maintenance
Straightforward maintenance and programming – been around for years!
Disadvantages:
Takes up valuable space in electrical rooms
Long control wiring runs back to panel
Less flexibility – what’s wired is wired!

5. Lighting Control Best Practices: Networked Centralized or Distributed?
Networked Distributed Lighting Control: Switching or Dimming
Advantages:
Less space taken in electrical rooms
Less/shorter wiring requirements
More flexibility – keeping control in the space it is needed
Disadvantages:
Equipment located throughout the building ceiling space, closets, etc
Newer technology – programming often required for small changes
Requires costly processor to network distributed equipment

6. Lighting Control Best Practices: Networked Centralized or Distributed?

7. Lighting Control Best Practices: Standalone Distributed Control
Standalone Distributed Lighting Control
Short wiring runs, more flexibility, equipment located throughout the building spaces
Removes requirement for costly processor
Meets new energy code requirements for less cost!

8. Lighting Control Best Practices: Integration Considerations
What level of integration do your buildings have?
Does your lighting control to integrate with:
BAS
Fire Alarm
Security Systems AV
Automated Shades

9. IECC 2015
Any project pulling a permit in Denver after September 2016 will be required to meet IECC 2015.
Many jurisdictions have already adopted it.
Controls must be upgraded if 50% or more of existing light fixtures are replaced.
Major differences in control strategies from the last IECC code (2009 or 2012).
Expect a higher cost for additional control requirements.

10. IECC 2015: Occupancy Control
Vacancy control requirements:
Manual override must be provided
Sensors must be programmed for manual on/automatic off, aka vacancy functionality.
OR sensors must be programmed such that the lights automatically turn on to 50%, with manual control to 100%.
Vacancy control is required in:
Training, multi-purpose, meeting, classrooms
Copy/print rooms
Lounges and employee break rooms
Private offices
Storage rooms, janitorial closet
Locker rooms
Warehouses
Any enclosed room > 300SF
Occupancy control requirements:
Sensors can be programmed for automatic on/automatic off, aka occupancy functionality.
No manual override switch/dimmer is required.
Occupancy control is required in:
Public corridors
Stairways
Restrooms
Primary entrances
Lobbies

11. IECC 2015: Occupancy Control
What does this mean for your building?
Manual overrides/switches where only occupancy sensors were previously required.
Programmable control may be required where standalone was previously acceptable.

12. IECC 2015: Daylight Control
Daylight Control: Major Code Change!
Required in spaces adjacent to windows or skylights.
NOT required where 150W or less of lighting is connected.
NOT required where openings are less than 24SF
Automatic dimming control of daylight zones required!

13. IECC 2015: Daylight Control
What does this mean for your building?
Major change from previous energy code!
Daylight sensors and dimmable fixtures will be required adjacent to any windows/skylights.
Programmable control WILL be required where standalone was previously acceptable.

14. IECC 2015: Light Reduction Control
Spaces are required to have manual control that allows occupant to reduce the lighting by at least 50%.
Achieved by dimming, dual-level switching, or alternate switching fixtures in space.
Not required where daylight control is provided.
What does this mean for your building?
Dimming, dual-level switching, or dual-level zoning is required.
Multiple-levels of control are required where single-level was previously provided.
LED fixtures inherently are dimmable, so dimming will be much more common.

15. IECC 2015: Time Scheduling Control
Time-clock requirements
7-day timeclock schedules and programmed holiday shutoffs. Manual override switches with maximum 2-hour sweep.
Required for:
Malls, arcades
Auditoriums
Retail spaces
Industrial facilities
Arenas
Any area not required to have light reduction control
What does this mean for your building?
Not much has changed. Continue to have timeclock override/sweeps for many spaces in your building.

16. IECC 2015: Time Scheduling Control
Site Lighting Requirements
Photocell to control lights based on daylight.
Timeclock programmed to turn lights on/off with dawn/dusk
Required to reduce exterior lighting by at least 30% between 12am-6pm (depending on operating hours)
Completed projects must have engineer’s stamp on functional testing reports for lighting control system.
What does this mean for your building?
Major change from previous energy code!
Site fixtures will need to be dimmable or step-dimmed (dual-circuit)
Control system will expand to accommodate additional zones/dimming.
Option for site fixture-integrated controls in lieu of centralized to achieve this requirement.

17. Building Lighting Controls
Questions?
Thank you!