Presentation on theme: "Stuart Pieloch R C Lurie"— Presentation transcript:
1 Stuart Pieloch R C Lurie 623-299-0617 firstname.lastname@example.org IECC 2012 CodeStuart Pieloch R C LurieThank youStuartRC LurieEnergy Code update
2 R.C.Lurie Company is a Registered Provider with The American Institute of Architects Continuing Education Systems. Credit earned on completion of this program will be reported to CES Records for AIA members.Certificates of Completion for non-AIA members areavailable on request. This program is registered with the AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product.Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.
3 IECC 2012 Code Learning Objectives 1. Design code compliant Occupancy Sensor solutions for rooms with ‘4 walls and 1 door’.2. Design code compliant Lighting Control relay panel solutions for automatic sweep off controls.3. Design manual daylighting control zones and use lighting control panels to meet code for these areas.4. Understand the triggers for automatic daylighting control requirements based on skylight and fenestration area
4 Commercial Energy Efficiency IECC 2012 CodeCommercial Energy EfficiencyC401 - GENERALC402 - BUILDING ENVELOPE REQUIREMENTSC403 - BUILDING MECHANICAL SYSTEMSC404 - SERVICE WATER HEATING (Mandatory)C405 - ELECTRICAL POWER AND LIGHTING SYSTEMS (MANDATORY)C406 - ADDITIONAL EFFICIENCY PACKAGE OPTIONSC407 - TOTAL BUILDING PERFORMANCEC408 - SYSTEM COMMISSIONING
5 Manual Daylighting Controls C402 - BUILDING ENVELOPE REQUIREMENTS< 30% Glazing< 3% SkylightsManual Daylighting ControlsC Maximum area. The vertical fenestration area (not including opaque doors and opaque spandrel panels) shall not exceed 30 percent of the gross above-grade wall area. The skylight area shall not exceed 3 percent of the gross roof area.C Increased vertical fenestration area with daylighting controls. In Climate Zones 1 through 6, a maximum of 40 percent of the gross above-grade wall area shall be permitted to be vertical fenestration, provided:1. No less than 50 percent of the conditioned floor area is within a daylight zone;2. Automatic daylighting controls are installed in daylight zones; and3. Visible transmittance (VT) of vertical fenestration is greater than or equal to 1.1 times solar heat gain coefficient (SHGC). Exception: Fenestration that is outside the scope of NFRC 200 is not required to comply with Item 3.C Increased skylight area with daylighting controls. The skylight area shall be permitted to be a maximum of 5 percent of the roof area providedautomatic daylighting controls are installed in daylight zones under skylights.
6 Less than 0.5 Watts per square foot. C When an enclosed space is greater than 10,000 square feet with a ceilingheight greater than 15 ft skylights and daylighting controls are required.C Exception spaces where the designed general lighting power densities areLess than 0.5 Watts per square foot.
7 3rd party Commissioning agents C408 - SYSTEM COMMISSIONING“approved party independent from the design or construction of the project shall be responsible for the functional testing”3rd party Commissioning agentsC408.3 Lighting system functional testing. Controls for automatic lighting systems shall comply with Section C408.3. C Functional testing. Testing shall ensure that control hardware and software are calibrated, adjusted, programmed and in proper working condition in accordance with the construction documents and manufacturer’s installation instructions. The construction documents shall state the party who will conduct the required functional testing. Where required by the code official, an approved party independent from the design or construction of the project shall be responsible for the functional testing and shall provide documentation to the code official certifying that the installed lighting controls meet the provisions of Section C405. Where occupant sensors, time switches, programmable schedule controls, photosensors or daylighting controls are installed, the following procedures shall be performed:1. Confirm that the placement, sensitivity and time-out adjustments for occupant sensors yield acceptable performance.2. Confirm that the time switches and programmable schedule controls are programmed to turn the lights off.3. Confirm that the placement and sensitivity adjustments for photosensor controls reduce electric light based on the amount of usable daylight in the space as specified.
8 C405 - ELECTRICAL POWER AND LIGHTING SYSTEMS (MANDATORY) C405.1 General (Mandatory).C405.2 Lighting controls (Mandatory).C405.3 Tandem wiring (Mandatory).C405.4 Exit signs (Mandatory).C405.5 Interior lighting power requirements (Prescriptive).C405.6 Exterior lighting (Mandatory).C405.7 Electrical energy consumption (Mandatory).EXCEPT where high-frequency ballasts are usedUse electronic ( high-frequency ) ballastsInternally illuminated exit signs shall not exceed 5 watts per side. Use LED exitsINTERIOR LIGHTING POWER ALLOWANCES: BUILDING AREA METHOD SPACE-BY-SPACE METHOD INDIVIDUAL LIGHTING POWER ALLOWANCES FOR BUILDING EXTERIORS
9 C405.2 Lighting controls (Mandatory). C Manual lighting controls.C Interior lighting controls.C Light reduction controls.C Additional lighting controls.C Automatic time switch control devices.C Occupancy sensors.C Daylight zone control.C Manual daylighting controls.C Automatic daylighting controls.C Multi-level lighting controls.C Specific application controls.C Exterior lighting controls.Except : Occupancy SensorsExcept : Occupancy Sensors
15 C405.2.2.1 Automatic time switch control devices. Automatic time switch controls shall be installed to control lighting in all areas of the building ( Except where you have Occ Sensors )Many wallsMany doorsUp to 5000 sq ft per zone
19 C405.2.2.3 Daylight zone control. Switched separately from non-daylit zonesUp to 2500 sq ft per zoneManual controls are acceptableC Manual daylighting controls. Manual controls shall be installed in daylight zones unless automatic controls are installed in accordance with C Automatic daylighting controls.(C Continuous dimming or multilevel switching)
23 C405.2.4 Exterior lighting controls Lighting not designed for dusk to dawn operation shall be controlled by either a combinationof a photosensor and a time switch, or an astronomical time switch. Lighting designatedfor dusk to dawn operation shall be controlled by an astronomical time switch or photosensor.C Exterior Lighting ZonesLighting Zone 1Developed areas of national parks, state parks, forest land, and rural areasLighting Zone 2Areas predominantly consisting of residential zoning, neighborhood business districts, light industrial with limited nighttime use and residential mixed use areasLighting Zone 3All other areasLighting Zone 4High-activity commercial districts in major metropolitan areas as designated by the local land use planning authority
24 C405.6.2 POWER ALLOWANCES FOR BUILDING EXTERIORS What areas are covered under exterior lighting allowances?Tradable surfacesCommon exterior lighted needs that can be traded for other needs.For example, wattage allowed for parking lot lighting can be “traded” and used for canopy lighting.Nontradable surfacesLess common exterior lighted needs that cannot be traded for other needs.These applications have more specific security or task illuminance needs.Non-tradableBuilding facadesAutomated teller machines and night depositoriesEntrances and gatehouse inspection stations at guarded facilitiesLoading areas for law enforcement, fire, ambulance and other emergency vehiclesDrive-up windows/doorsParking near 24-hour retail entrances
25 C405.6.2 POWER ALLOWANCES FOR BUILDING EXTERIORS Zone 1Zone 2Zone 3Zone 4Base Site Allowance500 W600 W750 W1300 WTradable SurfacesUncovered Parking AreasParking areas and drives0.04 W/ft20.06 W/ft20.10 W/ft20.13 W/ft2Building GroundsWalkways less than 10 feet wide0.7 W/linear foot0.8 W/linear foot1.0 W/linear footWalkways 10 feet wide or greater0.14 W/ft20.16 W/ft20.2 W/ft2Plaza areasSpecial Feature AreasStairways0.75 W/ft21.0 W/ft2Pedestrian Tunnels0.15 W/ft20.3 W/ft2
26 Building Entrances and Exits Main entries Zone 1Zone 2Zone 3Zone 4Untradeable SurfacesBuilding Entrances and ExitsMain entries20 W/linear foot of door width30 W/linear foot of door widthOther doorsEntry Canopies0.25 W/ft20.4 W/ft2Sales CanopiesFree-standing and attached0.6 W/ft20.8 W/ft21.0 W/ft2Outdoor SalesOpen areas (including vehicle sales lots)0.5 W/ft20.7 W/ft2Street frontage forvehicle sales lots inaddition to “openarea” allowanceNo allowance10 W/linear foot30 W/linear foot