ASHRAE 90.1 - 2010

Lighting Controls Code Changes

WHY BOTHER?

• Future Energy Questions

• Uncertain supply

• Bulk of country’s energy comes from petroleum-based products

• Capacity constraints

• Cost and Environmental impact to build new power plants

• Environmental Concerns

• Sustainable Building Design – LEED

• Light Pollution -Dark sky

UNITED STATES ENERGY USE

Source: U.S. Energy Information Administration/Annual Energy Review 2010

• Methods states utilize for implementing energy codes

1. Most states adopt, in entirety, one of the national energy codes (i.e. ASHRAE 90.1, IECC)

2. Some states, such as California (Title 24), develop their own energy codes

3. Some states adopt one of the national energy codes and then add state-specific amendments to the national codes.

ENERGY CODES - STATE ACCEPTANCE LEVELS

PRIMARY ENERGY CODES

• National Energy Codes

• ASHRAE Standard 90.1

– Versions 1999, 2001, 2004, 2007, 2010

• IECC

– 2003, 2004s, 2006, 2009, 2012

• State Codes

• California

• Washington

• City Codes

• Seattle

• Albuquerque

WHERE DO ENERGY CODES COME FROM?

• In United States – created in response to the energy and economic crises of the 1970s

• 1978 – Congress passed legislation requiring states to initiate energy efficiency standards for new buildings

• 1992 – Energy Policy Act (EPact) – states must review and consider adopting national model energy standard

Source: http://bcap-ocean.org/energycodes101

ASHRAE Energy Code Status (Commercial)

Source: http://bcap-ocean.org/code-status-commercial

DOE AND ASHRAE 90.1-2010

• July 2011 – DOE issued determination 2007 version saves more energy than 2004 version (3.7%)

• States have until July, 2013 to file certification that energy code meets or exceeds 2007 version

• October 2011 - DOE issued determination 2010 version saves more energy than 2007 version (18.2%)

• States have until October, 2013 to file certification that energy code meets or exceeds 2010 version

• States can file 1 certification to address both determinations

IECC Energy Code Status

ENERGY SAVINGS RESULTING FROM ENERGY CODES (STD. 90A-1980 AS BASELINE)

Std 90.1-2004

Std 90.1-2010

IECC 2006

IECC 2012

ENERGY CODES AND LIGHTING CONTROLS

ASHRAE Standard 90.1 & International Energy Conservation Code

(IECC)

***ASHRAE 90.1 – 2013 has been released to the public

OVERVIEW - ASHRAE 90.1 & IECC

ASHRAE 90.1 IECC

2010 2004/2007 2012 2006/2009

Energy Code

Power Section 8

Lighting Section 9 Section 9

Electrical Power & Lighting Systems Section C405 Section 505

Note: IECC references

ASHRAE 90.1 as an

alternative compliance path

THRESHOLD FOR TRIGGERING CODE COMPLIANCE

ASHRAE 90.1 IECC

2010 Section 9.1.2

2004/2007 Section 9.1.2

2012 Section C101.4.3

2006/2009 Section 505.1

New Construction X X X X

Alterations > 10% of connected lighting load

X

Alterations > 50% of connected lighting load

X X X (2009)

AUTOMATIC LIGHTING SHUTOFF

ASHRAE 90.1 IECC

2010 Section 9.4.1.1

2004/2007 Section 9.4.1.1

2012 Section C405.2.2.1 2006/2009 Section C505.2.2.2

Required in all spaces X X

Required in buildings > 5,000 sq ft X X

Scheduled shutoff (time of day) X XX (automatic time switch

control device)X

Occupancy Sensors X X X X

Signal from another control or alarm system (such as BAS)

X X X

Exceptions

Lighting used for 24 hr operation X X X

Automatic shutoff endangers safety/security

X X X X

Spaces providing patient care X X X

Sleeping unit X

ADDITIONAL CONTROLASHRAE 90.1 IECC

2010 Section 9.4.1

2004/ 2007 2012 Section C405.2.2 2006/ 2009

Controls installed to meet space control, automatic lighting shutoff, and sidelighteddaylighting control requirements

Manual-on or auto-on to <

50%

Space Controls = manual device + automatic time switch or occ

sensor + daylighting zone control (some enclosed spaces require manual-on or auto-on

to < 50%)

Exceptions

Public areas (corridors, stairwells, restrooms, primary building entrances, lobbies)

X

Areas where manual-on operation would endanger the safety/security of the room or building occupants

X

Sleeping units X

Spaces where patient care provided X

Spaces where automatic shutoff would endanger occupant safety/security

X

Lighting intended for continuous operation X

SPACE CONTROL

ASHRAE 90.1 IECC

2010 Section 9.4.1.2

2004/2007 Section 9.4.1.2

2012 Section C405.2.1.1

2006/2009 Section 505.2.1

At least one control device needs toindependently control the general lighting in enclosed spaces

X (switch or occsensor)

X (switch or occsensor)

X (switch) X (switch)

Exceptions

Areas designated as security or emergency areas required to be continuously lighted

X

Egress lighting in stairways or corridors X

SPACE CONTROL (CONT.)ASHRAE 90.1 IECC

2010 Section 9.4.1.2

2004/2007 Section 9.4.1.2

2012 Section C405.2.2.2

2006/2009

Must turn lighting off automatically within 30 minutes after last occupant leaves in the following spaces:

X (time switch or occ sensor)

XX (occ sensor

manual-on or auto-on to < 50%)

Classrooms X X X

Lecture halls X

Conference and meeting rooms X X X

Training rooms X

Employee lunch and break rooms X X X

Storage and supply roomsX (between 50-

1000 sq ft)X

Janitorial closet X

All spaces < 300 sq ft enclosed by ceiling height partitions

X

Rooms used for document copying and printing X X

Offices X (< 250 sq ft) X

Restrooms XX (100% auto-on

allowed)

Dressing, locker, and fitting rooms X

MAXIMUM CONTROL ZONESASHRAE 90.1 IECC

2010 Section 9.4.1.2

2004/2007 Section9.4.1.2

2012 Section

C405.2.2.1

2006/2009 Section

505.2.2.2.1

Max control zone

2500 sq ft for spaces 10,000 sq ft or less

OR10,000 sq ft for spacesgreater than 10,000 sq

ft

2500 sq ft for spaces 10,000 sq ft or less

OR10,000 sq ft for spaces

greater than 10,000 sq ft

5,000 sq ft 5,000 sq ft

Max override time2 hrs (time-of-day

schedule)4 hrs (time-of-day

schedule)2 hrs 2 hrs

LIGHT LEVEL REDUCTION

ASHRAE 90.1 IECC

2010 Section 9.4.1.2

2004/2007 2012 Section C405.2.1.2

2006/2009 Section

505.2.2.1

Enclosed spaces have uniform light level reduction of connected lighting load

X (30-70%) X (50%) X (50%)

Exceptions

Spaces with only one luminaire X (<100W) X (<100W) X

Areas controlled by occupancy sensor X X

Corridors, storerooms, restrooms, & public libraries

X X X

Equipment rooms, electrical & mechanical rooms

X (electrical/ mechanical)

X

Sleeping units X X

Space with LPD <0.6W/sq ft <0.6W/sq ft <0.6W/sq ft

Daylit spaces with automatic daylightingcontrol

X

LIGHTING CONTROL IN DAYLIT ZONES

ASHRAE 90.1 IECC

2010 Section 9.4.1.4 & 9.4.1.5

2004/ 2007

2012 Section C405.2.2.3 & C402.3

2006/2009 Section 505.2.2.3

Threshold for triggering daylit zone requirements (lighting in daylit zones in enclosed spaces must be controlled separately from general lighting in the space)

Sidelit: > 250 sq ft;skylit: > 900 sq ft

Sidelit & skylit w/ > 2 fixtures

Sidelit & skylit w/ > 2 fixtures(2009)

Exception

Retail spaces X

Manual daylighting requirementsTriggered based on

fenestration and skylightarea

Threshold for triggering automatic daylight control requirements

Same as aboveTriggered based on

increased fenestration and skylight area

Automatic daylighting controls must be multi-level

X (one control step b/w 50-70% design power

and second control step < 35%)

X (continuous dimming to < 35% or stepped dimming with one control step b/w50-70% design power and second control step < 35%

Separate switching of sidelit and skylit daylitzones

When skylight is > 15’ from the perimeter

When skylight is > 15’ from the perimeter

(2009)

LIGHTING CONTROL IN DAYLIT ZONES (CONT.)

ASHRAE 90.1 IECC

2010 2004/ 2007

2012 Section

C405.2.2.3

2006/ 2009

Daylight control zone cannot exceed 2500 sq ft X

One control device can control contiguous daylight zones adjacent to vertical fenestration when the zone includes < 2 adjacent orientations (north, south, east, west)

X X (2009)

Skylit areas require at least one multi-level lighting control that controls the lighting in the daylit zone separately from general lighting and reduces the lighting power in the daylit zone in response to available daylight

X

When areas with multi-level lighting controls are receiving daylight illuminance levels greater than the illuminance from the controlled lighting when no daylight is available the controlled power consumption must be < 35% of the rated power of the controlled lighting

X

Light sensor must be remote from where the calibration adjustments are made and calibration adjustments must be readily accessible

X (automatic daylighting

control)

X (multi-level lighting control)

PARKING GARAGE LIGHTING CONTROL

ASHRAE 90.1 IECC

2010 Section 9.4.1.3

2004/ 2007

2012 2006/ 2009

Automatic shutoff using scheduled basis control device, occupancy sensor that turns lighting off within 30 minutes or a signal from another control or alarm system

X

Automatically reduce lighting power of each luminaire by at least 30% when there is no activity in a lighting zone (3,600 sq ft or less) for < 30 minutes

X

Daylight transition zone lighting separately controlled to automatically turn lighting on during daylight hours and off at sunset

X

Automatically reduce luminaires in response to daylight within 20 ft of any perimeter wall structure

X

Exceptions

Daylight transition zones and ramps without parking are exempt from 30% reduction and wall ratio requirements

X

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

X

EXTERIOR LIGHTING CONTROLASHRAE 90.1 IECC

2010 Section 9.4.1.7

2004/2007 Section

9.4.1.3 & 9.4.4

2012 Section

C405.6.1

2006/ 2009

Section505.2.4&

505.6

Exterior lighting automatically turned off when sufficient daylight available or when not required during nighttime hours

X (when sufficient daylight available)

X X (2006)

Building façade and landscape lighting

Automatically shutoff between midnight or

business closing (whichever is later) and 6am or business

opening (whichever is earlier)

All other exterior lighting, including advertising signage

Automatically reduce by 30% b/w midnight or within 1

hour of business closing and 6am or business opening ORduring any period when no activity has been detected

for < 15 min

All building grounds lighting that operate at 100W must have lamps with minimum efficacy of 60 lumens/W unless controlled by a motion sensor

X X X

EXTERIOR LIGHTING CONTROL (CONT.)

ASHRAE 90.1 IECC

2010 2004/2007 2012 Section

C405.2.4

2006/2009

Lighting not designated for dusk-to-dawn operation controlled by either:

Photosensor and time switch or X (2007) X X (2009)

Astronomical time switch X X X

Dusk-to-dawn lighting controlled by either:

Astronomical time switch or X X X

Photosensor X X X

GUEST ROOM LIGHTING

ASHRAE 90.1 IECC

2010 Section 9.4.1.6

2004/2007 Section 9.4.1.4

2012 Section

C405.2.3

2006/2009 Section 505.2.3

Rooms in hotels and motels must have one or more control devices at the entry door that collectively controls all permanently installed luminaires and switched receptacles

X X X X

Exception

bathrooms X X

Suites must have controls at the entry to each room or at the primary entry to the suite

X X

Bathrooms must have a control device to automatically turn off bathroom lighting except for nightlighting not exceeding 5W within 60 minutes of the occupant leaving the space

X

TASK LIGHTING

ASHRAE 90.1 IECC

2010 Section 9.4.1.6 &

9.2.2.3

2004/2007 Section 9.4.1.4

& 9.2.2.3

2012 Section

C405.2.3 &

C405.5.1

2006/2009 Section 505.5.1

Integral control device or readily accessible wall-mounted device

X X X

Furniture mounted task lighting controlled by automatic shutoff device may be excludable from space LPA calculation if it is in addition to general area lighting

X X X X (2009)

STAIRWELL LIGHTING

ASHRAE 90.1 IECC

2010 Section 9.4.1.6

2004/2007 Section 9.4.1.4

2012 2006/2009

Automatically reduce lighting power in any one controlled zone by at least 50% within 30 minutes of all occupants leaving that zone

X

AUTOMATIC RECEPTACLE CONTROL

ASHRAE 90.1 IECC

2010 Section 8.4.2

2004/ 2007

2012 2006/ 2009

Automatic shutoff of 50% of all receptacles in private offices, open offices, and classrooms via:

X

Scheduled shutoff X

Occupancy sensor that receptacles off within 30 minutes following non-occupancy of space

X

Signal from another control system X

Exceptions

Receptacles dedicated to equipment with 24-hour operation X

Spaces where automatic shutoff would endanger the safety/security of occupants

X

SYSTEM COMMISSIONING

ASHRAE 90.1 IECC

2010 Section 9.4.4

2004/ 2007

2012 Section C408.3

2006/ 2009

Perform functional testing X X

Confirm acceptable performance of the placement, sensitivity, and time-out adjustments for occupancy sensors

X X

Confirm time switches and programmable schedule controls are programmed to turn the lights off

X X

Confirm placement and sensitivity adjustments of photosensors reduce electric light in the space as specified

X X

Submit documentation certifying performance X X

RESOURCES

• Building Codes Assistance Project (BCAP)

• http://www.bcap-ocean.org/

• ASHRAE

• www.ashrae.org

• IESNA

• www.iesna.org

• International Codes Council (ICC)

• www.iccsafe.org

What questions do you have?

Thank You!