Presentation on theme: "IECC 2012 Code Stuart Pieloch R C Lurie 623-299-0617"— Presentation transcript:
IECC 2012 Code Stuart Pieloch R C Lurie
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 are available 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.
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
IECC 2012 Code Commercial Energy Efficiency C404 - SERVICE WATER HEATING (Mandatory) C405 - ELECTRICAL POWER AND LIGHTING SYSTEMS (MANDATORY) C406 - ADDITIONAL EFFICIENCY PACKAGE OPTIONS C407 - TOTAL BUILDING PERFORMANCE C408 - SYSTEM COMMISSIONING C401 - GENERAL C402 - BUILDING ENVELOPE REQUIREMENTS C403 - BUILDING MECHANICAL SYSTEMS
C402 - BUILDING ENVELOPE REQUIREMENTS C 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; and 3. 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 provided automatic daylighting controls are installed in daylight zones under skylights. < 30% Glazing < 3% Skylights Manual Daylighting Controls
C Exception spaces where the designed general lighting power densities are Less than 0.5 Watts per square foot. C When an enclosed space is greater than 10,000 square feet with a ceiling height greater than 15 ft skylights and daylighting controls are required.
C408 - SYSTEM COMMISSIONING C408.3 Lighting system functional testing. Controls for automatic lighting systems shall comply with Section C 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 manufacturers 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. approved party independent from the design or construction of the project shall be responsible for the functional testing 3 rd party Commissioning agents
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 used Use electronic ( high-frequency ) ballasts Internally illuminated exit signs shall not exceed 5 watts per side. Use LED exits INTERIOR LIGHTING POWER ALLOWANCES: BUILDING AREA METHOD SPACE-BY-SPACE METHOD INDIVIDUAL LIGHTING POWER ALLOWANCES FOR BUILDING EXTERIORS
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 Sensors
C Occupancy Sensors are required in all Rooms 300 sq ft or lessRestrooms Private OfficesClassrooms Conference roomsMeeting rooms Lunch RoomsBreak Rooms Storage RoomsJanitorial Closets
Vacancy Sensor Switch – Line Voltage Manual On – Auto Off Manual off switch 4 Walls 1 Door up to 3 Light fixtures
Ceiling Motion Sensor + Power Pack + Manual on Switch Manual On – Auto Off Manual off switch 4 Walls 1 Door up to 900 sq ft
C 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 walls Many doors Up to 5000 sq ft per zone
C Daylight zone control. Switched separately from non-daylit zones Up to 2500 sq ft per zone Manual controls are acceptable C 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)
4 Walls 1 Door Occupancy Sensor Up to 5,000 sq ft sweep off zones Got Windows or Skylights? Daylight zone switched separate
C Exterior lighting controls Lighting not designed for dusk to dawn operation shall be controlled by either a combination of a photosensor and a time switch, or an astronomical time switch. Lighting designated for dusk to dawn operation shall be controlled by an astronomical time switch or photosensor. C Exterior Lighting Zones Lighting Zone 1Developed areas of national parks, state parks, forest land, and rural areas Lighting Zone 2Areas predominantly consisting of residential zoning, neighborhood business districts, light industrial with limited nighttime use and residential mixed use areas Lighting Zone 3All other areas Lighting Zone 4High-activity commercial districts in major metropolitan areas as designated by the local land use planning authority
C POWER ALLOWANCES FOR BUILDING EXTERIORS Non-tradable Building facades Automated teller machines and night depositories Entrances and gatehouse inspection stations at guarded facilities Loading areas for law enforcement, fire, ambulance and other emergency vehicles Drive-up windows/doors Parking near 24-hour retail entrances What areas are covered under exterior lighting allowances? Tradable surfaces Common 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 surfaces Less common exterior lighted needs that cannot be traded for other needs. These applications have more specific security or task illuminance needs.
C POWER ALLOWANCES FOR BUILDING EXTERIORS Zone 1Zone 2Zone 3Zone 4 Base Site Allowance 500 W600 W750 W1300 W Tradable SurfacesUncovered Parking Areas Parking areas and drives0.04 W/ft W/ft W/ft W/ft 2 Building Grounds Walkways less than 10 feet wide 0.7 W/linear foot 0.8 W/linear foot 1.0 W/linear foot Walkways 10 feet wide or greater 0.14 W/ft W/ft W/ft 2 Plaza areas Special Feature Areas Stairways0.75 W/ft W/ft 2 Pedestrian Tunnels0.15 W/ft W/ft W/ft 2
Zone 1Zone 2Zone 3Zone 4 Untradeable Surfaces Building Entrances and Exits Main entries 20 W/linear foot of door width 30 W/linear foot of door width Other doors 20 W/linear foot of door width Entry Canopies0.25 W/ft W/ft 2 Sales Canopies Free-standing and attached 0.6 W/ft W/ft W/ft 2 Outdoor Sales Open areas (including vehicle sales lots)0.25 W/ft W/ft W/ft 2 Street frontage for vehicle sales lots in addition to open area allowance No allowance10 W/linear foot 30 W/linear foot