ASHRAE/IES 90.1-2010ASHRAE/IES 90.1-2010Lighting HighlightsLighting Highlights

Eric Richman, LC, LEED AP90.1 Lighting Subcommittee Chair

Pacific Northwest National Laboratory

Summary List - ASHRAE 90.1-2010 changes

Revised/corrected Interior LPDs (efficacy, geometry)Exterior LPD requirements expansion (exterior zones)Detailed daylighting control and skylight requirementsOccupancy sensor control (more spaces. Vacancy)Exterior lighting control (after-hours requirements)Parking garage lighting control (daylighting/after hours)Emergency (night light) shut-off and Stairwell controlControl incentives for advanced controlsGuest room bathroom lighting control (aw)Receptacle shut-off control (50% auto-off)Functional Testing (commissioning)

30 total addenda

►Detailed daylighting control and skylight requirements►Occupancy sensor control (more spaces. Vacancy)►Exterior lighting control (after-hours requirements)►Parking garage lighting control (daylighting/after hours)►Emergency (night light) shut-off and Stairwell control►Control incentives for advanced controls►Guest room bathroom lighting control (aw)►Receptacle shut-off control (50% auto-off)►Functional Testing (commissioning)

Building LPD Changes (sample)

[Addendum “by” - completed]

Most whole building values reduced or unchanged

Space Type LPD Changes (sample)

Mixed reduction and increase in LPDs based on technology improvements and model corrections.

TABLE 9.6.1 Lighting Power Densities Using the Space-by-Space Method Common Space Typesa

LPD, W/ft2 RCR Threshold

LPD, W/ft2 RCR Threshold

Atrium— First Three Floors First 40 feet in Height

0.6 0.03 per ft (height)

NA

Atrium— Each Additional Floor Height Above 40 Feet

0.2 0.02 per ft (height)

NA

Classroom/ Lecture/ Training

1.4 1.24 4

For Penitentiary 1.3 Conference/ Meeting/ Multipurpose

1.3 1.23 6

Corridor/ Transition 0.5 0.66 Width < 8 ft

Laboratory 1.4 For Classrooms 1.28 6 For Medical/ Industrial/ Research

1.81 6

Lobby 1.3 0.65 4 For Hotel 1.1 For Performing Arts Theater

3.3 2.00 6

For Motion Picture Theater

1.1 0.52 4

Dressing/ Locker/ Fitting Room

0.6 0.75 6

Lounge/ Recreation 1.2 0.73 4 For Hospital 0.8

Office—Enclosed 1.1 1.11 8 Office—Open Plan 1.1 0.98 4 Restrooms 0.9 0.98 8 Sales Area [for accent lighting, see Section 9.6.2(b)]

1.7 1.68 6

Stairs – Active Stairway 0.6 0.69 10 Active Storage 0.8 0.63 6

Added LPD Adjustment

Use only when applying the space by space method

Calculate the Room Cavity Ratio (RCR) for the empty room:

RCR = 2.5 x Room Cavity Height x room perimeter length room area

(Room Cavity Height = Luminaire mounting height – Workplane)

If RCR is greater than the RCR threshold for that space type, a 20% increase is allowed

For corridor/transition spaces, this adjustment is allowed when less than 8 feet wide, regardless of the RCR.

Room Cavity Ratio Adjustment for relief in unusual spaces

Retail Display Allowance Reductions

[Addendum “bq” to 90.1-2007 – Completed

Reduced additional allowance for lighting specifically designed and directed to highlight merchandise

Daylighting Control Additions…..

Three separate addenda (“d”, “ab”, “al”) that:Require the control of electric lighting when top and side daylight is present

…AND…

Require the installation of skylights when appropriate

Additional addenda “ct” and “dd” (in process) modify the area thresholds for top and side daylighting

Lighting Control for Toplighting

Applied based on “daylight area under skylights” + “daylight area under rooftop monitors” that exceed 900 ft2

Control is required for the general lighting over these areas Control must be multi-level photocontrol

At least two output levels at 0% - 35% and 50% - 70%OR

Continuous dimming

[Addenda “d” and “ab” to 90.1-2007 – Completed]

Requires control of electric lighting when toplighting daylight is available

“Daylight Area Under Skylights”

“Daylight Area Under Skylights”

Lighting Control for Sidelighting

Applied based on “primary sidelighted area” exceeding 250 ft2. Control is required for the general lighting over these areas Control must be multi-level photocontrol

At least two output levels at 0% - 35% and 50% - 70%

OR

Continuous dimming

Requires control of electric lighting when sidelighting daylight is available in appropriate areas

[Addenda “ab” (Completed review) and “ct” (In review) to 90.1-2007]

“Primary Sidelighted Area”

“Primary Sidelighted Area”

Zonal Exterior Power Allowance Revision

The existing single set of exterior power limits is expanded to be lighting zone based.

The expansion follows the current IESNA development work on Model Lighting Ordinances (MLO)

Exterior Lighting Zones

LightingZone

Description

1 Developed areas of National Parks, State Parks, Forest Land, and Rural areas

2 Areas predominantly consisting of residential zoning, neighborhood businessdistricts, light industrial with limited nighttime use and residential mixed use

areas

3 All other areas

4 High activity commercial districts in major metropolitan areas as designatedby the local jurisdiction

[Addendum “i” to 90.1-2007 - completed]

Zonal Exterior Power Allowance Revision (partial list)

    Zone 1 Zone 2 Zone 3 Zone 4

Base Site Allowance

  500 W 600 W 750 W 1300 W

Tradable Surfaces Uncovered Parking Areas

  Parking areas and drives

0.04 W/ft2

0.06 W/ft2 0.10 W/ft2

(0.15) 0.13 W/ft2

  Building Grounds

  Walkways less than 10 feet wide

0.7 W/linear foot

0.7 W/linear foot

0.8 W/linear foot

1.0 W/linear foot

  Walkways 10 feet wide or greater

0.14 W/ft2 0.14 W/ft2 0.16 W/ft2 0.2 W/ft2

  Plaza areas

  Special Feature Areas

  Stairways 0.75 W/ft2 1.0 W/ft2 1.0 W/ft2 1.0 W/ft2

  Pedestrian Tunnels 0.15 W/ft2 0.15 W/ft2 0.2 W/ft2 0.3 W/ft2

  Landscaping 0.04 W/ft2 0.05 W/ft2 0.05 W/ft2 0.05 W/ft2

Occupancy Based Control Additions

Requirement for specific occupancy sensor control in additional spaces (red).conference,/meeting rooms, and training rooms,

classrooms and lecture halls

employee lunch and break rooms.,

storage and supply rooms between 50 ft2 and 1000 ft2,

rooms used for document copying and printing,

office spaces up to 250 ft2,

restrooms

dressing, locker, and fitting rooms.

Exceptions updated (moved):Spaces with multi-scene lighting control systems

Shop and laboratory classrooms

Spaces where an automatic shutoff would endanger the safety or security of the room or building occupant(s)

Lighting required for 24-hour operation

[Addendum “x” to 90.1-2007 – Completed]

Occupancy Manual-on Control Requirement

Automatic control devices shall not be set to Automatically turn the lighting on. This effectively requires manual-on OR 50% auto-on function for automatic controls

Commonly known as a “vacancy sensor” type of control in the occupancy sensor industry

Exceptions (where automatic-on is allowed):public corridors and stairwells,

restrooms,

primary building entrance areas and lobbies ,

areas where manual-on operation would endanger the safety or security of the room or building occupant(s).

[Addenda “aa” and “bp” to 90.1-2007 – Completed]

“Bi-Level” Space Lighting Control

Exceptions:Lights in corridors, electrical/mechanical rooms, public lobbies, restrooms, stairways, and storage rooms

Spaces with only one luminaire with rated input power less than 100W.

Spaces types with a lighting power allowance of less than 0.6 W/ft2

[Addendum “ce” to 90.1-2007 – In process]

Requires the controlled lighting have at least one control step between 30% and 70% (inclusive) of full lighting power in addition to all off.

Changes to Alterations Requirements

Includes retrofits where luminaires are added, replaced, or removed.Also includes lamp plus ballast retrofitsAlterations of less than 10% of connected lighting load are exempted.

[Addendum “av” to 90.1-2007 – Completed]

Requires that BOTH Interior and Exterior alterations comply with LPD and automatic shutoff requirements

Parking Garage Control

Must reduce lighting power by minimum of 30% when no activity detected within a lighting zone (< 3,600 sf)Daylight transition zone lighting (66 ft wide by 50 ft) must be separately controlled to turn lighting on during daylight hours and off at sunset.Daylight control required for luminaires within 20 feet of perimeter wall with net opening to wall ratio of 40%.Exceptions:

Daylight transitions zones and ramps without parking are exempt from 30% reduction and daylight control.

Applications using HID of 150 watts or less or Induction lamps are exempt from 30% reduction.

 

[Addendum “cz” to 90.1-2007 – completed]

Requires Parking garage lighting to be automatically controlled including daylighting

Advanced Exterior Lighting Control

Lighting must turn off when there is sufficient daylight Building façade and landscape lighting must be shut off between midnight or business closing, whichever is later, and 6am or business opening, whichever comes first, or between times established by the authority having jurisdiction. The power for other lighting including advertising signage, shall be automatically reduced by at least 30%:

from 12 midnight or within one (1) hour of the end of business operations, whichever is later, until 6am or business opening ,whichever is earlier; OR

during any period when no activity has been detected for a time of no longer than 15 minutes.

[Addendum “cd” to 90.1-2007 – in process]

Requires specific daylight and building operation lighting controls for exterior

Receptacle (wall plug) Control

Applies to 125 volt 15- and 20-Ampere receptacles in Private offices, Open offices, and Computer ClassroomsRequires automatic control using:

Time-of-day schedule,

Occupancy sensor, or

Other automatic control based on occupancy

Exceptions:Spaces where automatic shutoff would be safety/security issue

Spaces where all loads require 24 hour operation.

[Addendum “bs” to 90.1-2007 – in process]

Requires that 50% of receptacles (wall plugs) in a space have automatic shutoff control

Hotel Room Bathroom Lighting Exception/Control Revision

Guestrooms in hotels, motels, boarding houses or similar buildings shall have one or more control device(s) at the entry door that collectively control all permanently installed luminaires and switched receptacles, except those in the bathroom(s).

Bathrooms shall have a control device installed to automatically turn off the bathroom lighting, except for night lighting not exceeding 5 watts, within 60 minutes of the occupant leaving the space.

[Addendum “aw” to 90.1-2007 – Completed]

Advanced Control Incentives

The allowance is based on conservative estimates of tradeoff (low percentage of expected savings)

Additional power can be used anywhere in the building

Additional Interior Lighting Power Allowance is calculated as:

Lighting Power Under Control x Control Factor

When all mandatory control requirements are met for a space AND advanced controls are installed in that space, THEN additional limited lighting power is allowed:

[Addendum “ac” to 90.1-2007 - completed]

Control Factors for Advanced Controls (partial list)

Control Factors Varying by space type  Space Type

Additional Control Method

OpenANDPrivateoffices

Conference meeting Classroom(lect./train.)

RetailSalesarea

Lobby, Atrium, Dining,Corridor/stairs, Gym/poolMall concourse, Parking

garage

Manual, continuous dimmingcontrol OR Programmablemulti-level dimming control

0.05 0.10* 0.1 0

Programmable multi-leveldimming control usingprogrammable time scheduling

0.05 0.10* 0.1 0.1

Multi-level occupancy sensors 0.05 0.05 0 0

Automatic bi-level or multi level switching in primary sidelighted

areas when EA > 0.15

0 0 0.1 0

*These control factors may only be used if the requirements of section 9.4.1.2 are met using an occupancy sensor.

Stairwell and “Emergency” Lighting Control

Applies to lighting in enclosed stairwellsMust have control to automatically reduce lighting power in any control zone by at least 50% within 30 minutes of all occupants leaving the zone. 

[Addenda “cu” and “cf” to 90.1-2007 – in process]

Stairwell lighting must have automatic shutoff control

Lighting with dual function as normal and “emergency” lighting must comply with automatic shutoff requirements

This was always the intent but now clarified

Functional Testing (commissioning) of Controls

Must be performed by individuals NOT involved in design, manufacture, or installationFor occupant sensors, time switches, programmable controls, or photosensors:

Verify all performance criteria is met

Confirm occupant sensor time-out and sensitivity settings

Confirm timers and programs set to turn lights off

Confirm photosensor controls effectively control electric lighting in response to daylight

[Addendum “az” to 90.1-2007 – Completed

Requires functional testing (calibrated/adjusted/programmed) for lighting control devices and systems within 90 days of occupancy

QUESTIONS

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