® 2012 Crestron Electronics, Inc. Specifications subject to change. All copyrights and trademarks property of their respective owners. CRES23: Daylight Harvesting & Controls Presented by: Michael Block National Design Manager [email protected]Update 08-16-12
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CRES23: Daylight Harvesting & Controls...Daylight Concerns: • Sky Factor • Building Orientation 17 South-facing windows are most advantageous for daylighting and for moderating
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® 2012 Crestron Electronics, Inc. Specifications subject to change. All copyrights and trademarks property of their respective owners.
• Exception: distance from fenestration to nearest obstruction is shorter than the distance from the bottom of the fenestration to the top of the obstruction
• The daylight harvesting controls must be readily accessible
• The daylight harvesting controls must be capable of being calibrated within the space they are affecting
Daylight Harvesting
Controls &
Commissioning
47
Daylight Harvesting Controls: Photosensors
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Photosensors
Used to measure the quantity of daylight in the space then determine the
amount of dimming or switching required to maintain the design work
plane illuminance level.
Typical Open Loop
Photosensor
Typical Closed Loop
Photosensor
• 0-10V signal
• 3-300, 30 to 3000, or 60 to 6000
footcandle range
• 0-10V signal
• Measures 0-70 footcandles
Daylight Harvesting Controls: Direct Method vs. Processors
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Processor Method - A processor is the brains of a Daylight Harvesting control system. It
receives data input from the photocell and then sends a signal to:
- the ballast or light fixture to turn on/off/dim
- keypads and/or touchpanels for override
- facility energy management & monitoring system
- shade system
* It also makes it easy to commission and change
the settings of the photocell remotely as needed.
Direct Method - Wiring the lighting ballast & photocell together.
Typical for some open-loop systems. Extreme limitations in
control capability. Not recommended
Daylight Harvesting: Commissioning Terminology
50
Response Time – defines how quickly the system reacts to changes in light levels
Minimum Dim Level – defines the lowest level a dimmer may output (can be used to
prevent the lights from turning completely off when dimming)
Dim Level To Photosensor Relationship (Open-Loop) – defines dimmer output levels
in relationship to open-loop photosensor readings
Desired Light Level (Closed-Loop) – defines the desired light level in the space
Photosensor Range – set photosensor fc range (3-300, 30-3000, 60-6000, etc.)
(Sensor voltage output to light level relationship needs to be defined in the system)
The following settings are common parameters when configuring the
operation of a daylight harvesting system:
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To Think About…
There are various techniques available to incorporate daylight harvesting into a
commercial project
The benefits of daylight harvesting (including energy savings) outweigh any of the
prior concerns due to the new technology, programs, & simple commissioning
tools that are now available from various manufactures
The only way we will truly reach future sustainable goals is to integrate Daylight
Harvesting into more than just lighting, and then look at the big picture…
…Integrated Building Technology.
This concludes the 1 hour Crestron
AIA Continuing Education Seminar on:
CRES12:
Daylight Harvesting & Controls
Thank You.
Please feel free to complete the
course evaluation forms.
® 20012 Crestron Electronics, Inc. Specifications subject to change. All copyrights and trademarks property of their respective owners.
CRES11:
Energy Codes & Integrated Building Technology
Presented by:
Michael Block National Design Manager
Update 08-16-12
Thank you!
Energy Codes & Integrated Building Technology
Crestron Electronics, Inc. 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.
2
Crestron Course #: CRES11:
3. Understand the benefits of a single-platform IBT solution from various stake-holder’s perspectives. Architect, Engineer, GC, EC, Facility Manager, Building Owner, etc.
2. Be able to define the term Integrated Building Technology (IBT) & the role it will fill in meeting today’s energy code requirements
1. Become familiar with evolution of the Energy Codes & Standards
Learning Objectives:
3
A Global Presence
59 Offices, 90 Countries, 2500+ Employees, 300+ Engineers, Training Centers, 24/7/365 Support
Energy Codes &
Standards
4
Why have lighting controls become so important
over the past 35 years?...
5
Energy Codes & Standards…1975
ANSI/ASHRAE/IES Standard 90-1975: Energy Conservation in New Building Design
1975
1990 2030 2010
Initiated by the U.S. Federal Government Created in a response to the 1973 Oil Crisis National voluntary consensus standard Technical contributors were: ANSI, ASHRAE, IESNA Included standards for : Building Envelope, HVAC, Lighting,
The standard is updated for the first time 14% more stringent than the previous 1975 version Name changed slightly to what we know it today Still voluntary, but Fed funding becomes available
ANSI/ASHRAE/IES Standard 90.1-1989: Energy Standard for Buildings Except Low-Rise Residential Buildings
DOE gets involved, voluntary adoption of energy standards is no longer an option EPAct required all states to adopt energy codes for commercial and high-rise multi-
family residential buildings at least as stringent as ASHRAE 90.1 – 1989 Some states & cities not only enforced the code, but exceeded: Promise of
incentives & federal funding (ex: California’s Title 24) Still spotty enforcement
In 1994 the ICC was created as a non-profit organization dedicated to developing a single set of broad & coordinated national construction codes
International Code Council (ICC):
Three founders of ICC were Building Officials and Code Administrators International (BOCA), International Conference of Building Officials (ICBO), and Southern Building Code Congress International (SBCCI)
• C405.2.2.2 – If a time clock is used, dimming/scene control is also
mandatory • Exception: where manual dimming is allowed and no time clock or
occupancy/vacancy: – Sleeping units, patient care, shop and lab rooms
– Where switching is allowed and not dimming/scene control: • Spaces with one luminaire rated at <100W • Spaces with LPD <0.6W/sqft • Hallways, lobbies, MEP rooms • Spaces that have automatic daylight responsive controls
Daylight Response Requirement
• C405.2.3 – Daylight harvesting required:
• Spaces with >150W general lighting within daylight zone – Exceptions: healthcare, dwelling/sleeping units, food/drink consuming
areas, shops and stores. – Exception: area of fenestration is <24sqft – Exception: distance from fenestration to nearest obstruction is shorter than
the distance from the bottom of the fenestration to the top of the obstruction
– The daylight harvesting controls must be: • readily accessible • capable of calibration within the space they are affecting
Daylight Responsive Control
• C405.2.3
– Two types of daylight zones
• Toplight and Sidelight – Must be controlled independently
– Separate zones must be created if lights are facing <45 degrees from a different cardinal direction and >150W
Hotel/Motel Requirement
• C405.2.4
– Hotel and motel sleeping units:
• Requires a master controller to shut off all lights and receptacles within 20 minutes upon leaving the space
Exterior Lighting Requirement
• C405.2.5 – External photo sensor to shut off lights based on available
ambient light
– Time clock control based on dawn/dusk and open/closing time • If not acceptable:
– Must automatically reduce lighting power >30% from:
» 12am-6am or,
» 1hr after closing – 1hr before opening or,
» No activity for >15m
– Exception: covered vehicle entrances/exits, security areas
Additional Efficiency Requirement
• C406.1 – All buildings must choose one:
• More efficient HVAC (C406.2)
• Reduced LPD (C406.3)
• Digitally addressable networked lighting control system (C406.4)
• One-site supply of renewable energy (C406.5)
• Dedicated outdoor air system for HVAC equipment (C406.6)
• High efficiency service water heating (C406.7)
Additional Efficiency Requirement cont.
• C406.4 – Digitally addressable lighting system details:
• Continuous dimming
• Individually addressable
• Daylight zone
• Digital reconfiguration available
• Load shedding
• Individual user control
• Reconfiguration of occupancy sensors available
Why the increase in Energy Efficiency?
Net Zero Energy Buildings & Architecture 2030
Architecture 2030’s mission is to create, and quickly respond to, opportunities that shape the dialogue and address the crisis situation surrounding the ‘Building Sector’ and its contribution to global warming.
The goal is for every building to be carbon neutral by the year 2030
We’re not just gathering energy data anymore. We’re analyzing it, we’re integrating it with other building systems,
and we’re required to save more energy than ever before!
The face of Energy Monitoring is changing…WHY?
Data in…
Control out!
Benefits of a single platform solution…
Centralized Control
A single location for facility managers to conveniently view and manage lighting, shades, occupancy status, current temperature, and alarms for individual rooms, floors, and buildings
A single location for facility managers to remotely access pre-programmed system touch screens
Benefits of a single platform solution…
Centralized Control
Scheduling & Automation
A single location for programming lighting, shade, & hvac automation rules tied to scheduled meetings and events
A centralized energy management control system that integrates seamlessly with corporate scheduling software such as Microsoft Outlook or Lotus Notes for an added layer of energy savings capability
A single location tied to an astronomical timeclock where facility managers can modify and create newly scheduled events
Benefits of a single platform solution…
Centralized Control
Scheduling & Automation
A single location for gathering real-time energy data of true power consumption & power factor
Monitoring & Reporting
A single platform to not only monitor & report energy consumption from electricity, but also from natural gas, steam, petroleum and other energy categories as needed
A single location for gathering feedback information from lamp and ballast failures as well as room status
Benefits of a single platform solution…
Centralized Control
Scheduling & Automation
Monitoring & Reporting
A single location to view, trigger and instantly reduce energy consumption when desired by an owner or when requested by a utility company
Demand Response & Load Shedding
A single location to program & change load shedding rules
Benefits of a single platform solution…
Centralized Control
Scheduling & Automation
Monitoring & Reporting
Demand Response & Load Shedding
A single platform to coordinate occupancy and daylight sensing controls with lighting fixtures, shades, and hvac equipment for truly enhanced energy savings
Lighting, Daylighting & HVAC Control
A Global Presence
59 Offices, 90 Countries, 2500+ Employees, 300+ Engineers, Training Centers, 24/7/365 Support
Integrated Building
Technology
Example
Every system working together.
AV Control
Lighting
HVAC & Climate Control
Energy Mgt
Security
Drape/Screen
Remote Mgt
The IBT Solution
The President of a fortune 500 company schedules an 9:00am meeting, in the summer, to be held in the conference room and wants to present a power point
The meeting is cancelled at the last minute, but the IT department is not notified. The lights & projector remain on for the rest of the day. The blinds remained closed. The HVAC system continues to cool an unoccupied room. Other employees would like to use the conference room later on in the day, but go elsewhere because they are not sure if there is a meeting about to begin in the conference room or not.
Non-Integrated Example
• He sends out meeting invite via Outlook Calendar
• Emails IT department to prepare the room which includes: setting up & turning on the projector, manually closing the blinds, adjusting the thermostat to pre-cool the room down to prepare for a large group of people, and turning the lights on
The President of a fortune 500 company schedules an 9:00am meeting, in the summer, to be held in the conference room and wants to present a power point
Integrated Example
• Sends out meeting invite via Outlook Calendar
The meeting is cancelled at the last minute. At 9:10am the room’s occupancy sensor senses no presence & sends a signal to the building’s Energy Management System which automatically turns the lights & projector off, the motorized blackout shades open, the hvac system stops cooling and returns to an un-occupied set point temperature, and the Outlook integrated touch screen next to the door indicates the room is ‘Open’ and others may use it
• 5 minutes before the meeting is to begin, the room automates to a pre-programmed ‘AV Presentation’ preset. The lights go to a preset scene, the projector warms up, the blackout shades close, and the room pre-cools itself down to a pre-determined set point temperature for an occupied space
Buildings perform better. Buildings save energy.
IBT Benefits
Can we select efficient individual building energy systems?…
Can we make it easy for the facility manager to use and continue to save energy?...
Can we design more efficient buildings than ever before?...
The new design questions…
Can we integrate control of these individual systems to together to save even more energy?...
When do we start?...
This concludes the 1 hour Crestron AIA Continuing Education Seminar on: CRES11: Energy Codes & Integrated Building Technology
Thank You. Please feel free to complete the course evaluation forms.