lighting & title 24 2013 - kw engineering 24 ensures that lighting controls are setup and...

Lighting &Title 24 2013

www.kw-engineering.com July 23, 2014

About your Presenters

• kW’s Lighting Expert• Diverse Project Load

Energy Audits Lighting Design Design Review Strategic Energy

Planning Construction

Administration Retro-commissioning

(RCx)

• kW’s Lead CxA• Triple Talent

• HVAC Design• Construction• Startup

• Specialist• Commissioning• Design Review• Meme generator

© 2013 kW Engineering, Inc.

James Donson, PE, LC, MIES Lyn Gomes, PE, LEED AP, CLCATT

21st NCBC Conference

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What We’ll Cover Today

What & Why’s of Title 24 Code Changes

Lighting Controls Lighting Additions &

Alterations Acceptance Tests

Closing Thoughts

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W&W Code Controls Lights A&A AT

What & Why Title 24 (T24)?4

California Building Standards Code 12 Parts Part 6 California Energy Code 1979: maintain 2013: net-zero


§130.1 – Indoor§130.2 – Outdoor§140.6 – Indoor§140.7 – Outdoor §141.0 – Additions & Alterations§130.4 Acceptance Tests

Code Changes5


Lunch ‘n’ LearnThursday, 7/31

Lighting Controls

Lighting

Mandatory, Area, Multi-Level, Shutoff, Daylighting, Demand Response, Outdoor lighting controls, that is

It’s all about controls…6

§130 Mandatory Controls7

All non-residential New construction Additions Increase in lighting power (W) Some retrofits


§130.1 Area & Multi-Level Controls

Local control Each room Play nice with other

tech Exceptions:

Large areas (i.e. auditoriums)

Security/safetyOn egress path

Multi-Level = dimming fixtures Depends on technology

(see support slides) Requires controls

Exceptions: Small rooms (≤ 100 ft²) Low power (≤ 0.5 W/ft²) Few fixtures (≤ 2)

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(a) Area Controls (b) Multi-Level Controls

§130.1 (c) Shut-Off Controls

Get it scheduled After hours Holidays & weekends Time-clock Automated Sweeps ≤ 2 hour override

Reduce when occupied Partial on Occupancy sensors

Exceptions: 0.05 W/ft² for

overnight security/egress

Occupancy Sensors: Offices ≤ 250 ft² Multi-purpose rooms

≤ 1,000 ft² Conference Rooms Classrooms

Partial On/Off Corridors & Stairwells

(50%) Activates at all points

of egress Warehouses Library stacks

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§130.1 (d) Daylighting10

Daylighting Primary Daylit Zone Skylit Zone Secondary Daylit Zone

in new construction or addition/alteration

Exceptions Small windows (< 24 ft²) Low load in daylit zone

(< 120W) No dimming if daylit

zone < 0.3W/ft²W&W Code Controls Lights A&A AT

§130.1 (e) Demand Response11

Buildings > 10,000 ft² Automatic response Not enabled,

necessarily Shed 15% lighting power Exceptions Non-habitable spaces Spaces < 0.5W/ft²


§130.2 –Outdoor Controls Incandescent >100W:

Motion sensor Excludes health/life safety,

pools, temporary, theme parks, LED/neon, sign lighting

> 150W comply with BUG rating No Back-light requirement Exceptions

Sign/Façade/Architecture/ Statue/

Health/Life Safety Some Retrofits Roadway & Public Right of

Way (sidewalk/bikes)


§130.2 –Outdoor Controls

Photocell or astronomical time switch

Separate circuit Excludes

Health & Safety Lighting

24/7 Tunnel Lights

Luminaires ≤ 24 ft Motion Controls –

reduce on vacancy Control Circuit

<1500W Includes wall packs

Excludes Special cases (see

next few slides) Poles ≤ 75W, non-

poles ≤ 30W Linear lighting ≤ 4W/ft


§130.2 –Outdoor Controls

Sales Frontage, Lots, & Canopies Part-night reduction or Motion sensors

Façade, Ornamental Hardscape, Dining Motion sensors or Part-night or Central timeclock

reduce to 50% Excludes wall-packs

Lighting

21st NCBC ConferenceW&W Code Controls Lights A&A AT

§140.6 Performance & Prescriptive

Very similar toTitle 24-2008

Installed lighting maximum power density

Reasonably achievable

Private Office 1.0 W/ft² Large Office 0.75 W/ft² Classrooms 1.2 W/ft² Cafeteria 1.1 W/ft² Corridors 0.6 W/ft² Auditorium 1.5 W/ft² Multipurpose 1.4 W/ft² Locker Room 0.8 W/ft² Library 1.2 W/ft² Library Stack 1.5 W/ft²

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§140.7 Exterior Lighting17

General Hardscape Area allowance (W/ft²) Perimeter Allowance (W/ft) Flat “Freebie” Watts (W)

Specific Applications Very specific Based on eitherFlat max watts (W)Area (W/ft²)

Landscape lighting not regulated


Section 141.0 - Paving new ground in code

Additions and Alterations18


§141 – Modification-in-Place


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Fixture components ≥40 fixtures touched 1 “space” 1 calendar year If very efficient: local wall switch & shut-off controls Otherwise, Local wall switch & shut-off controls Multi-level controls Automatic daylighting

Space:1. Complete 1-story

building2. Complete floor of a

multi-floor building3. Entire tenant area 4. Core spaces

§141 – Alterations Remove or replace fixtures >10% fixtures 1 “space” 1 calendar year Very efficient

Local wall switch & shut-off controls

Otherwise Local wall switch & shut-off

controls Multi-level controls Automatic daylighting Demand Response (DR)

controls

Wiring changes Mandatory controls:

Local Switches Multi-level controls Shut-Off Controls Daylighting Demand Response

Acceptance testing

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Space Definition:An enclosed area bounded by walls (i.e. a single room)

Impact of §141


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Retrofit More code compliance Savings not eligible for Utility incentive programs No money for enforcement Utility likely to ask for permit documents if

incentive sought AHJ may not require strict compliance Exterior lighting not covered in §141 50% rule applies

By a California Lighting Controls Acceptance Test Technician (CLCATT)

Acceptance Testing22


§130.4 Acceptance Testing23

Required for certificate of occupancy Acceptance Test forms California Lighting Controls

Acceptance Test Technician (CLCATT) Applies to retro-fits triggering

Title 24 Ensures that lighting controls

are setup and functioning after installation


Closing Thoughts24

Effective July 1, 2014 Exceptions Lighting controls New construction AND retro-fits Several projects can trigger

Good design can alleviate some of the T24 requirements, but may not provide the best, long-term value

Acceptance testing adds costs while ensuring lighting control systems work

Questions?25

James Donson, PE, [email protected](510) 229-5625

Lyn Gomes, PE, LEED AP, [email protected](510) 229-5639

Resources

This presentation T24 Flow Chart See website:

http://bit.ly/1sLBcvC

http://kw-engineering.com/ resources/presentations/ presentations.php

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