Lighting and lighting control design

Summary

In a comprehensive webcast by Consulting-Specifying Engineer, experts delve into the intricacies of lighting and lighting control design, highlighting innovations in smart lighting solutions with the support of the session sponsor, Lutron. With consultations from industry leaders like Tony Staub and Michael Chow, the discussion covers a range of topics from energy codes, design strategies, and technological advancements, emphasizing the role of tailored solutions to meet the diverse needs of modern infrastructures. The session also underlines the importance of comprehensive planning, from understanding legal requirements to effective execution, showcasing how innovative lighting strategies contribute to efficient and sustainable building designs.

Highlights

• Tony Staub and Michael Chow lead an insightful webcast on lighting and control designs 🎥
• Smart lighting controls like Lutron’s Vive save energy and enhance productivity 💡
• Learning objectives include energy code compliance and enhanced lighting design 🌟
• Interactive Q&A allows professionals to delve deeper into lighting complexities 🤔
• Real-world examples illustrate the impact of lighting solutions in different projects 🌍

Key Takeaways

• Understanding energy codes is crucial for compliant lighting design ⚡️
• Smart lighting controls improve energy efficiency and occupant comfort 🌟
• The selection of lighting fixtures should consider aesthetics, functionality, and budget 💡
• Effective communication with all stakeholders ensures better project outcomes 🗣️
• Advanced lighting controls offer numerous benefits but require careful planning 📋

Overview

The webinar kicks off with host Amara Rasgis introducing the experts and setting the stage for an informative session sponsored by Lutron. The event promises a deep dive into lighting and control designs, targeting mainly electrical engineers and stakeholders interested in cutting-edge lighting solutions.

Tony Staub and Michael Chow provide detailed insights into the complexities of lighting codes, highlighting the need for adherence to standards such as ASHRAE 90.1 and IECC. They emphasize the importance of understanding local codes and collaborating with architects and lighting designers to ensure systems are both functional and efficient.

Through interactive discussions and real-life case studies, the presenters illustrate how smart lighting controls revolutionize modern infrastructures. They discuss the adoption of advanced controls, the integration of UV lighting for disinfection, and the impact of strategic design on energy savings and user satisfaction.

Lighting and lighting control design Transcription

• 00:00 - 00:30 hello and welcome to the Consulting specifying engineer webcast lighting and lighting control design sponsored by Lutron I'm your host Amara rasgis with Consulting specifying engineer and CFE media and technology and I'll be with you for this hour-long event all right let's learn about this webcast platform if you are have trouble having trouble with your slides or with the audio refresh your internet browser or
• 00:30 - 01:00 click on the refresh media button directly under the presenter's photo you can adjust the volume for this webcast on your own device if you're having technical problems click on the question mark at the top right corner of your screen to do some system checks before contacting an online technician if you do need help type a message in the ask a question box and we will respond in the answered questions box to download the
• 01:00 - 01:30 presentation slides use the event resources tab on the left side of your screen type questions for the presenters and they ask a question box on the left side of your screen and you can ask questions at any time during this presentation the Q a will start in about 45 minutes if you're interested in receiving one AIA CES approved learning unit you need to pass a 10 question exam to take that exam you can click on the
• 01:30 - 02:00 learning unit exam tab at the top of your screen that quiz will pop up in a separate browser window so I do recommend that you open it now because that link will break when the webcast signs off in keeping with the American Institute of Architects continuing education system policy please take a few moments to read this quality assurance slide here are the learning objectives for
• 02:00 - 02:30 today's session and we'll talk about all of these in the presentation please note that any blue underlined text that you see is a hyperlink within the PDF where you can get more information let's now hear from the session sponsor at the conclusion of the commercial you may experience a few seconds of Silence to make up for different internet speeds please stay tuned with us for the next minute
• 02:30 - 03:00 every year thousands of buildings are built or retrofitted every one of these spaces can benefit from Smart lighting control that saves energy improves comfort and enhances productivity Vive from Lutron is a simple flexible and scalable smart lighting control solution comprised of a full family of wireless devices that can be tied together to enable centralized control monitoring and system integration Vive can help buildings meet stringent
• 03:00 - 03:30 energy codes and improve building performance on budget and on schedule and with a wide range of online supporting tools meeting energy codes has never been simpler with five determine the energy codes in your Project's location design confidently with code-based application guides and create your documentation quickly with room-based design files live simple flexible scalable lighting control solution the world leader in smart building lighting control
• 03:30 - 04:00 Solutions all right very nice that support is greatly appreciated so now we've lined up two really fantastic presenters Tony Staub is lighting design lead and electrical project engineer at Specialized engineering Solutions where he just started a few weeks ago he earned a masters of architectural engineering from the University of Nebraska and then focused on knowing
• 04:00 - 04:30 everything possible about lighting and lighting controls allowing him to help clients design comfortable productive and user-friendly environments Michael Chow is principal owner and founder of Metro CD engineering he received an electrical engineering degree from Ohio Northern University where he now serves on the onu College of Engineering Advisory board he is a Consulting specifying engineer 40 under
• 04:30 - 05:00 40 Award winner and a member of the editorial Advisory Board well I'm eager for Michael to get started but first we have to ask the audience for some input so we know which direction to take so we're going to launch our first poll here and if you would take this first poll and let us know what is your role in lighting or lighting Control Systems so we're looking for a little bit of background about you to get a better understanding
• 05:00 - 05:30 of how to direct this presentation and understand exactly who we're speaking to I'll give you a couple of seconds here to respond to this poll and it looks like the vast majority of our audience today is electrical engineers okay so vast majority is electrical engineers and then we do have some folks who are Engineers though not necessarily electrical so thank you so much for taking that poll we'll ask you a couple
• 05:30 - 06:00 more questions as we move on and now Michael it's time to get started thanks Samara so when we're taking a look at lighting and lighting Control Systems the first place to start is to take a look at the codes guidelines and standards for lighting so Zamora mentioned earlier the the following items that are listed here we're not going to go through every item
• 06:00 - 06:30 we'll hit just the the key ones but the slides will be available after the presentation and you'll be able to click on the the wording or that particular document and it will direct you to the website so we're going to be focused mostly on ashrae standard 90.1 that encompasses HVAC mechanical power lighting is is also included in there and we'll talk about that particular standard in a
• 06:30 - 07:00 little bit more detail later so here are some more code standards and guidelines we'll be talking more about the international energy conservation code and we'll also be talking about the IES Tony will be going into some uh some more detail the IES is eliminating engineering society and they have online documentation where they provide
• 07:00 - 07:30 recommended foot candle levels for specific tasks and in spaces and also dependent upon the occupant age the U.S department of energy we'll talk about that a little bit more as well to the administer the contract which most of you should be familiar with that that is a web-based or application based system that allows you to show compliance with the energy codes the U.S Supreme Building Council that's
• 07:30 - 08:00 also lead and Lead has certain requirements related to lighting and commissioning and the well-building standard is also one that has a uh a lot of lighting lighting as far as the design is concerned and goes into a lot of the the quality of the lighting and there's federal state and local requirements as well too
• 08:00 - 08:30 so s390.1 that was mentioned earlier this is the one that I that I use most often it's updated every three years and the 2022 update is forthcoming so again it's updated every um three years it's similar to the iecc it covers the most aspects of Energy Efficiency in buildings as we talked about earlier lighting is part of that of one of those
• 08:30 - 09:00 systems so some jurisdictions adapt this code and they also publish their supplements and amendments for example I'm in Ohio and there is an A supplement where certain requirement of the 90.1 it is not not necessary that's the 50 percent receptacle control so in Ohio that is that is exempt okay next we'll talk about the
• 09:00 - 09:30 international energy conservation code and this is published by the International Code Council it's also updated every three years and the most recent update is 2021 and just like the Ashley 90.1 it covers the building systems and lighting now it's not not a carbon copy of ashrae 90.1 when it comes to to lighting there are very uh very there's a very item the lighting items
• 09:30 - 10:00 are very similar as you go across the two documents but they're not exactly the same so there is a section in the iecc that notice that actually 90.1 is acceptable alternate compliance path so it allows you to use either one and this this next item basically since they're three years of uh they're published every three years typically
• 10:00 - 10:30 the iecc allows you to adopt the 90.1 version issue two years before the iecc version now keep in mind that there might be specific requirements for example in Ohio the 2012 iecc is in effect but the ashrae 90.1 2007 is also in effect so that's slightly different than what's stated here
• 10:30 - 11:00 next is Title 24 for California uh this is the one of the energy codes that is not directly based upon either the ashtray 90.1 or the iecc it is also updated every three years in Title 24 is something that uh some of the items that are in there actually get Incorporated in ashrae 90.1 or iecc example is vacancy centers those
• 11:00 - 11:30 are first introduced in Title 24 and eventually made their way into lead and ashrae 90.1 as well so next um Tony was going to continue the discussions on codes so uh these codes are something that I'm glad to see that we've got quite a few electrical engineers here and these are codes that you should be familiar with uh regardless then but uh I'm going to touch on a few of the lighting specific
• 11:30 - 12:00 things that are that are held Within These codes so um NFPA 101 the Life Safety Code this is where you find the requirements that lay out what is necessary what is required for Emergency Operations especially but for egress as well there's a couple things in these codes that that I see you get sort of missed or misunderstood um from a lot of people just because you know the the lighting pieces of these can can be a little bit hidden
• 12:00 - 12:30 um in depth from all the other things so um at FPA 101 one of the biggest ones there is required illumination levels on on stairs um you know go take a look uh 10 foot candles on on every stair tread uh that's one that that in my experience has sort of commonly been misunderstood or missed um NFPA or a national lecture code again super familiar with that code right we use it every day where we're really using that in as it applies to lighting is in how we are setting up the
• 12:30 - 13:00 electrical systems to serve specific lighting functions right so um depending on what type of building you're in I personally do a lot of healthcare engineering and uh that Healthcare we are looking at 517 a lot where there are very specific requirements about what lighting Cannon should be placed on the life safety branch on the critical branch on the equipment branch on the normal branch
• 13:00 - 13:30 um so it's really telling you sort of how to organize the circuitry for um for your lighting and then finally IBC does have some of the uh it's really a lot of the same sort of language that's used in NFPA 101 it's telling you a lot of the same things this is where the the 90 minutes for emergency egress lighting and things like that are showing up are between NFPA 101 and IBC they sort of double cover Michael's going to help us determine which codes are applicable for your
• 13:30 - 14:00 project foreign thanks Tony as we mentioned earlier that the contract is available for the Department of energy and if you go to energycodes.gov that's a great resource if you click on that link it will take you to a website where you can enter the state that your project is in and it will tell you the current year
• 14:00 - 14:30 for Ashley 90.1 that applies and as well as iecc now um some of some cities and counties to adopt their own energy codes that may be more stringent than the state level and Tony has an example that he would like to share yeah so we have a very interesting I'll take down just a little short story here um with what we deal with especially in Nebraska so um we had a situation where the state code was recently updated to a 2018 ICC
• 14:30 - 15:00 and uh this exemption in Nebraska where her renovation product or project is under 50 of the insured cost of a building you're actually not required to meet the state energy code so we had situations where State energy code was a 2018 ICC and many local jurisdictions had the 2009 ICC uh and you really needed to understand both of those things at the same time because you
• 15:00 - 15:30 might have been in a position where uh I'm in Omaha and a renovation project might not have needed to apply with the state code in many cases they didn't but there was still a locally enforced code so really that's a cautionary tale to make sure that you are looking at both the state and local codes to see which ones are going to apply because the state code might not matter at all but you might still have a code requirement so just make sure that you're checking
• 15:30 - 16:00 all of those layers of different code requirements and make sure that you're meeting the most stringent code that you're required to meet all right Michael you know tell us about owner's project requirements great thanks Tony so the owner's project requirements are opr for sure it contains elements for design and should contain requirements for elimination and related items so this
• 16:00 - 16:30 document should be done at the beginning of a project and this is sometimes the owner will give you a list of items that they require and sometimes there are some gaps so it's important to have have this dialogue with the owner to make sure that you don't end up all the way at the end of a project and find out that you didn't meet the owner's requirements and sometimes the owner's requirements they don't line up with the energy code
• 16:30 - 17:00 for example we had a project where the owner wanted all halogen lighting and that definitely that'd be the energy code so we explained this to the owner at the beginning of the project and we were able to work in energy efficient lighting we're still meeting the owners project requirements opr ah so as far as these items that are listed here company's going to get into some more of the details of the opr and
• 17:00 - 17:30 out follow-up with commissioning requirements sustainability goals and training requirements as well as operations and maintenance requirements so I'll turn it over to Tony to talk about the lighting construction budget first thank you Michael all right so lighting construction budget this is one of those things that can really be difficult to pin down especially early um early on in the project you're typically going to get a budget that is presented in a dollars per square foot
• 17:30 - 18:00 uh number right and that can be really difficult to relate to what the actual project needs are what does five dollars per square foot for lighting versus ten dollars per square foot for lighting mean and that's something that in my opinion starts to come as a as a factor of experience I know if I'm seeing and admittedly I haven't run these numbers in the last couple years to adjust for for any cost increases that have happened but uh you know typically you
• 18:00 - 18:30 would see those costs maybe in the five to ten dollar range and and from experience I would know if I see a five dollar a square foot lighting budget one I know that's going to be pretty tight hard to hit but I know that my my standard products can be more a more economical product so I'm going to be looking for maybe more flat panels instead of high quality down lights maybe I'm doing more of a surface mounted Edge lit sort of situation with with down lights but always looking for ways especially in those fixtures where
• 18:30 - 19:00 you're using the hundreds of fixtures your type A's that um you're conscious of the budget so that you're not specifying a you know high-end product when the budget you know is not there um it can be very beneficial to try to get the budget sort of broken out when you have higher finished spaces within a project but but maybe the lighting budget is five dollars per square foot
• 19:00 - 19:30 throughout the building but then there's a few spaces where they're the owner wants sort of the higher finish level or a mortgage treat space and they're willing to carry a separate decorative lighting budget and that can pay for things like sconces and codes and future pendants and any number of other things going on there um so it can be really difficult you want to communicate early and often and you also want to communicate the value of
• 19:30 - 20:00 why you've selected the fixtures you are and why that you've done the design that you're doing um and that's because again in my experience lighting tends to be a very easy target once value engineering starts on a project sure everyone's been in one of those meetings where the contractor will raise their hand and say I can reduce the lighting budget by 25 if you let me select the fixtures right and and maybe that's okay but from a lighting engineering standpoint there are a lot of of key important
• 20:00 - 20:30 things and we're going to get into a couple more of those as we as we go through the next slides that I really really care about and I want to make sure that my client is still getting a high quality solution that I can stand behind regardless of where that budget sits so be conscious of what you're specifying because if you're specifying that that Cadillac on the Ford budget you know like you could end up in a situation where you don't you know you've spent
• 20:30 - 21:00 too much money and now you're going to have to Value engineer to something that isn't meeting the design that you wanted so that can also help if you get the contractor in a little bit early right so if your contractor understands what you're doing and this is especially true on the control side your budget might end up looking better as you move through the project the reason I say that's especially true for lighting controls is we still have you the networked lighting controls the digital
• 21:00 - 21:30 addressable lighting control systems are still new enough that contractors May struggle with the installation of those and if they're not familiar with how the installation is going to work then you typically see much higher installation costs um than what's truly necessary so educating both your client or contractor really the whole project team as to what you're doing and why can help you ensure that you keep the design that that you want and I throw an example up here one thing that I do to try to lock that in
• 21:30 - 22:00 early is as soon as SD as soon as I can get even the preliminary floor plan and a budget I start to go through and just color code plans really high level absolutely you're not making final selections locations quantities anything like that but what you're doing is starting to relay that information of high level what is my plan in each space and you can help yourself decide that by learning a little bit more about what
• 22:00 - 22:30 the client's needs and wants are so fixture selection is going to be a big one you know there are thousands of different fixtures that you could put into your project so there's going to be aesthetic choices there's going to be budget choices there's going to be functional choices right these fixtures are performing differently too so all of those things start to add up and are part of your fixture of selection process
• 22:30 - 23:00 um like I said in the last slide I usually try to get this started at SD and then ideally you can get that sort of locked in at the DD level with a fixture package that you can deliver to the team so that everyone's on the same page and understanding what the fixtures without the throughout the space are going to look like a couple other things that that I think that you should keep in mind that can really be critical color quality and color rendering index is uh is the main way that we're we're measuring that
• 23:00 - 23:30 still um I could do I could talk for hours on on team 30 as well which is I kind of hope where the industry is going but everybody should be familiar with color rendering index at this point look at I I would advise you to think about the spaces you're in um CRI 80 plus is very typical that's what you're more most often getting um from lighting manufacturers but CRI 90 plus tends to be a pretty minimal cost addition uh and is relatively easy
• 23:30 - 24:00 to get even when a cut sheet doesn't necessarily say that it is and there are a lot of benefits that you can get by moving to a higher CRI I mentioned earlier I'm in healthcare to a lot of healthcare engineering uh I don't put any light in healthcare space that is not 90 CRI and just the benefits of being able to get the really true to life color rendering so that a physician can look at your skin tone or your eyes or whatever thing they're looking at
• 24:00 - 24:30 even discrimination between two different pill types you know maybe you have a pink pill and a maroon pill and they're kind of the same you need to be able to tell the difference so that you don't misapply those things so that high CRI you know help here's one example you have art in a space that could be another example Interior Design Studios love to have a higher CRI so that they can really see what those materials look like in the true lighting that they should have right uh another thing that your client might
• 24:30 - 25:00 care a lot about even if they don't understand that they care a lot about would be the color temperature so we see that color temperature tends to be preferred in regions in different ways here in the Midwest 3 500 kelvins still by far the the most common I know there are places where even 5000 Kelvin can start to be uh more interesting or uh is more preferred depending on on the space like I said
• 25:00 - 25:30 um what I like to do I have a uh just a little box that has different colored LEDs ranging from 2700 Kelvin to 5000 Kelvin and most of the time when you when you approach a client and you start to to talk about color temperature they understand different color temperatures everyone's seeing warm and cool and understands what that means but they don't know what does that actually mean for my building what am I going to get what am I going to see so um it's pretty they're relatively easy to get you know
• 25:30 - 26:00 talk to a rep and see if one of them has a tool for you but if you can just show them here's three thousand here's 3 500 here's four thousand between some of the most common ones that really helps them to understand what decision they're actually making um a lot of times the answer you're going to get is just match what we have you know but this is a brand new building with a brand new client you might have to go through that sort of educational process all right so what about the lighting
• 26:00 - 26:30 control system now I will say my experience more often than not the energy code mandates what you're going to get you should definitely absolutely be having these in-depth conversations with your owners or with your clients and the reason for that is a lot of times and especially as we move to this sort of New Era where we're getting more of these digital interconnected controls clients are starting to have more interest in how they interact with those
• 26:30 - 27:00 controls but at the end of the day most of our projects were trying to meet those energy code minimums that we have to do so I have a table here uh this one's from the ashrae code but uh you might be using any number of codes um as Michael mentioned earlier 90.1 is very popular there um in Nebraska we use mostly the iecc and that's that's largely because of the receptacle requirement we don't have that exception and very very few people
• 27:00 - 27:30 want to turn off their receptacles so iecc is pretty common here but really what we're looking at is what is the code making us do we can look at other layers to save more energy be more user-friendly whatever you want to do whatever the client wants to do but ultimately we have to know what are the things that that we must do um one of those that I that has really changed a lot as newer codes have have
• 27:30 - 28:00 uh been picked up and I believe this this started in ICC 2012 and I think the just the previous ashrae for that but one of the biggest changes that has happened over the last number of years was the uh you can no longer once you've met those energy or once you're at that enforced energy code you can no longer have an occupancy sensor turn your lights on to 100 um a lot of these new codes are no greater than 50 and there are exceptions as well but that was such a common design for so many years that now you
• 28:00 - 28:30 start start to have to think about how we're going to do that a little bit differently so what about building on from that um in the previous slide I talked about the code requirements and what really tells us what we have to do if your owner gets a little bit deeper and you're and wants to to dive in you can start to have really really in-depth conversations about your controls and part of this is driven from the fact
• 28:30 - 29:00 that the industry hasn't really standardized uh on much once we've gotten to this new level of controls um picture on the top right there that is a traditional slide dimmer right with a switch and then I put three different examples of devices that do the same thing that that dimmer used to do all three of them look totally different you're going to interact with them in a totally different way but at the end of the day they do the
• 29:00 - 29:30 exact same things that slide your owner might have a preference I know I do um you know when I'm selecting switches and selecting those types of things and that's just at the most basic sort of manual control level right our systems now are so complex where we can do things like load shedding things like schedules Etc um like that the depth that the owner wants to get to
• 29:30 - 30:00 there's a lighting control system for that if they want a floor plan view to be able to pick up anything and everything and know exactly what the lighting status of the light in the storage room is well they're uh on vacation in Mexico that's fine we can do that we can get that set up so it's all about a conversation with your client about how deep you want to go are we really only trying trying to meet code minimums or do we want to take advantage of some of these extra pieces that we can do and then really focusing on what
• 30:00 - 30:30 is the end user have to interact with you know are they familiar with the buttons do they know they can dim um I can't tell you how many times I've been at a post-occupancy walkthrough and people complain about a room being too bright and I'll dim it and they and they look at me like I'm some sort of magical wizard right like oh you've just changed my life here so a lot of conversation can help you with that lighting control system uh assuming that you have a client that's sort of willing to engage
• 30:30 - 31:00 with that conversation uh wanted to take a moment to talk uh directly about daylight harvesting because it can be really tricky and it's probably one of the you know one of those fun code uh lighting control things that that can be tough for you so um both ICC and ashrae have defined daylight zones now um there's actually 90.1 does have secondary downside zones I did just walk into 2021 iecc does add secondary side
• 31:00 - 31:30 zones as well so daylight harvesting is only becoming more required as codes get newer and newer there's only more and more spaces we're having to to do daylight harvesting and really save all that extra energy okay so definitely something that if you're not familiar with start studying now because it's it's coming and more and more of it is coming so um as to how we do that really there's two common methods used in the industry today
• 31:30 - 32:00 and that that is open loop and closed loop which is essentially just saying do the photo sensors that we're using are they looking at the space are they looking at the desk that I'm sitting at judging the light there and adjusting accordingly or are they looking at outside and whether that's looking at a window or if the photocell is actually located outside of your building even and picking up just a daylight both can
• 32:00 - 32:30 be effective in different circumstances um generally we are doing the closed loop or generally for me um we're doing the closed loop designs that are so within a space but especially when you get higher ceiling Heights is a big one or if you have a lot of indirect light and the you know the picture on the bottom left there of the the daylight even that one would make me a little bit uncomfortable there's a lot of uplight that's hitting that sensor right so depending on your
• 32:30 - 33:00 site conditions or your room conditions one may or may not or one may more be be more appropriate than the other okay um want to walk through the steps that are needed to sort of start and every project can be a little bit different but how do you start from step one and get to designing a lighting system that meets the opr that we just talked about so this is my really high level flow chart and like I said projects start
• 33:00 - 33:30 anywhere you know sometimes you are thrown in at step three here and you say but here's a project and it's due next week and start laying out lights and that happens right schedules happen but if we have our way you want to take that a little bit slower and a little bit more methodically so ideally you can start by identifying the needs of your space that's at least how I like to look at this first go gather all your codes gather your energy codes gather your IES codes this is a excerpt from rp29 here
• 33:30 - 34:00 one of the recommended practice documents from the is which I always recommend if there is a recommended practice document for your building type go find it it's going to give you better Direction than just looking at the IES handbook uh sort of the overview there right so those RPS can be very valuable in that way and then this is the one that can be really difficult for us as electrical engineers and that's developed the lighting language and this is where um this is working with your Architects
• 34:00 - 34:30 your interior design and just the rest of the team and this is where you have to think about using a different language than you might use as an electrical engineer typically you want to be able to speak to the feeling of the space the goal of how that space is supposed to be perceived and at this time you really shouldn't be talking about fixtures at all I don't want to talk about a down light or a code or a linear or this or that I want to talk about where light should be and a lot of times this is where sketching
• 34:30 - 35:00 can be incredibly valuable because you're not trying to get fine details you're trying to convey where what spaces need to be painted with light right what what parts of the canvas are most important to us um from a lighting design standpoint that also is going to help you once you understand that then you can start to select the pieces and the parts that you need to get there but if you don't know what the feeling is supposed to look like what the design is supposed to end up as then how do you get to that design
• 35:00 - 35:30 um you're really just guessing if you don't really have that feeling in your head that ahead of time and that's when you move on to the engineering of this so you already know what full candle requirements still have in the space um I know how it's supposed to feel which has helped me decide which fixtures I'm going to end up using and now how many of them do I need where should they go and that's where you start to get really specific perform your calculations do your layouts and
• 35:30 - 36:00 work from there and then finally make the cleanest plans that you can for the contractor right we all don't want to have to answer rfis so if you can make a very clean concise way of delivering that information that's obviously going to be best detailed writing light infection can get really difficult Clans to really let everybody know at least with the lighting Control Systems going to do or intended to do but that's
• 36:00 - 36:30 ultimately where you need to end up is is somebody's got to build it and this is where we we tell them so all right I'm going to kick it back to Michael okay thanks Tony that's very informative so to continue the discussions for the owner's project requirements we're going to talk next about how to implement commissioning training and operation and maintenance manuals so commissioning so it's important to
• 36:30 - 37:00 ensure that the systems are working as a lighting designer attended so you can have this great lighting system but if it's not working as attended you're going to have occupant dissatisfaction and some of the other items we talk about here but when you do the commissioning you're reducing energy consumption for example this is a picture of occupancy sensor we installed at one of our projects that will um as everyone knows turn the lights off when the occupants are no longer in the
• 37:00 - 37:30 present in the room reduce operating class client satisfaction you know an example there would be occupancy sensors again making sure that they are used in the right applications there's usually a major movement area and a minor movement area in the major movement area for example you would capture somebody walking in the door and then once they're seen it at their workstation then you would go with the minor movement and sometimes a wall-mounted occupancy
• 37:30 - 38:00 sensor isn't the best location for an activity center so doing the commissioning and having having a commissioning team they would be able to catch those particular items during their design reviews so the commissioning Authority which is abbreviated as cxa reviews the opr and design teams basis of design to ensure that the opr are met so ashtray 90.1 now requires functional
• 38:00 - 38:30 testing of the lighting controls and systems here's an example when you're doing the functional commissioning the commissioning out in the field this is a project that we worked on what do you have the HVAC ductwork just sitting on top of the ceiling grid and also would be sitting on top of the lighting fixtures we were able to reminisce so that even though LED luminaries are great at some point there could be a driver failure Etc
• 38:30 - 39:00 see we need access in the space above and doing some of this functional testing would have help catch these type of items indeed uh for example requires fundamental commissioning and there's an enhanced commissioning component as well too where 10 months after the project is substantially complete the commission team goes back out and verifies that that things haven't changed as the
• 39:00 - 39:30 that the Lighting systems are functioning as designed training operations are maintenance manuals a lot of times this gets overlooked as we are working on more and more complex uh lighting design um and control strategies the facilities Personnel really need to be trained on how these things operate for example some occupancy sensors they have adaptive technology what that means is that it may take them a couple of days
• 39:30 - 40:00 before they get the calibration tuned and the facilities Personnel may not they're not aware of that they may be replacing those centers thinking there's something wrong with them so these are ideally videotaped and provided by our Factory trained authorized representative for the lighting controls company and the specifications this is usually covered in specifications to do the do this training the O M manuals I think
• 40:00 - 40:30 we're all familiar the electrical engineers especially for married with the review of the O M manuals this is just to make sure that the record drawings or asthma conditions and the specifications any changes are documented and the owner manual should include the shot drawings submittals of the Luminaires and the control devices that were installed thank you gentlemen so before we move on we're going to ask you our next poll questions we have another survey for you
• 40:30 - 41:00 we want to get a little bit of feedback a little bit of information uh this next question is what is your role in lighting or lighting control systems and we're looking for details about um oh sorry I'm on to the next poll question wow so what lighting topics have you heard about and you want to know more about so this is looking a little bit differently at what perhaps is new for you or perhaps is something
• 41:00 - 41:30 that you work on right now but you don't have a lot of information on so we're looking to get details about what you want to know more about all right so far interesting responses so the number one response is Advanced controls and in second place we have UV lighting and disinfection um oh sorry just moved ahead of that daylighting so number one is Advanced
• 41:30 - 42:00 controls number two is daylighting thank you so much for participating in that poll and Michael we're gonna kick it back to you for some information about a recent project okay thanks tomorrow so there's a case study that I like to share with you on a project I recently worked on and this is the new Engineering Building at Ohio Northern University this is uh where I went to college and also on the
• 42:00 - 42:30 engineering Advisory board so this particular project had a lot of meant a lot to me but yeah it was the first lead certified building on campus so we start again with the energy codes we went with ashrae 90.1 with the Ohio amendments natural electrical code that was adopted by the state of Ohio and then this project um actually was able to get um not just lead certified but gold certified
• 42:30 - 43:00 so how did we accomplish this we worked with the architect and we also worked very closely with the with the owner of the university and he wanted this building to make a statement um about engineering so all LED lighting fixtures were specified and installed and at the time of this project the WASP per square foot that was allowed was 1.2 watts per square foot the fact that we
• 43:00 - 43:30 were able to use the LED fixtures we were able to get that to 0.45 watts per square foot which is a pretty significant reduction to the energy code in fact the plans example didn't believe us and required us to submit cut sheets of all of the lighting fixtures that were installed and once the plans examiner had that that um then we were able to receive plan approval it also includes daylight harvesting
• 43:30 - 44:00 all right gentlemen thank you so very much all right now that we've wrapped up this portion of the presentation uh we know that that was a lot of information to take in we do want to remind you that you can earn one AIA CES approved learning unit for this event um you do have to pass an exam so to take the learning unit exam and to download your AIA CES certificate use the learning unit exam tab on the top of
• 44:00 - 44:30 your screen and the exam will open in a new browser window so I suggest you open that window right now and if you like this education and you want more please visit CFE edu right now we have several courses on electrical and Power Systems and one focusing on Motors we will have virtual training week coming up pretty soon so that's just a couple months away we encourage you to register
• 44:30 - 45:00 all right so let's take some questions please type your question into the ask a question box on the screen and if you would please type the presenter's name before your question you can direct it to either Tony or Michael we'll get to as many questions as time allows today and questions that we don't get to they will be posted at www.cscmag.com and with the archive of this webcast
• 45:00 - 45:30 and as a final reminder to download the slides please use the event resources tab on the left side of your screen all right Tony I'm going to send this first question to you and this is kind of a going back to definitions and information please tell me what our side lit and top lit zones yeah absolutely so um side lit I would say are probably the most common in that what's what's happening inside the zone
• 45:30 - 46:00 is when you have a window in a wall that is serving you that is going to be serving your space so the most common application think about your your 10 by 12 or 100 100 120 square foot offices on the edge of a building that have a window in them that is going to be a side lift space because the space itself has the window on the side of the room and so deep into that space you're going to have a defined side lit daylight Zone the light from that window
• 46:00 - 46:30 penetrates so far into the space a top lit Zone um there's really two great examples for it and that would be clear stories or skylights so there are different rules for how you are designing your daylight zones under a clear story or a skylight um that's a top lip Zone those are typically going to be in all directions from that toplet or from your you know if you have a skylight it's going to push light sort of in all directions below it if you have a window it's
• 46:30 - 47:00 really pushing from the exterior into the space so yeah those are that's the difference sideway is typically going to be a window topless typically a skylight or a clear story got it thank you Michael this next question is for you so as an electrical engineer do you look to the architect or the lighting designer to lay out the ceiling and the lights to determine the correct lighting levels and exit and emergency lights
• 47:00 - 47:30 thanks Laura that's a good that's a great question I think there's a lot of logical engineers present and I'm eligible today myself so for certain type of projects the Architecture Firm sometimes they may have their own lighting designer and from my experience the architect and and or they're lighting designer they lay out the ceiling they pick out the lighting fixtures
• 47:30 - 48:00 that they want if there's any special relating fixtures that they want a lot of times they'll show me a website or a page out of a magazine and they'll say Hey you know I want this particular the fixture and one of the um one of the things that they usually don't take in account is the illumination and also the energy used by those lighting fixtures so one of the challenges is to be able to still meet the energy code the
• 48:00 - 48:30 construction budget and still be able to achieve the recommended volcano levels so with the first step I usually take is go to energycode.gov and start the contract what you don't want to do is wait till the end of the project to do your contract and then you find out oh architect and inner lighting designer these special lighting fixtures we can't use those because we're way over our our watts per square foot allowance and you
• 48:30 - 49:00 know those are items that should be part of your project requirements and so by doing the contract early and working with the architect and lighting designer you can potentially accept or tell the architect our ID designer that doesn't necessarily work because either the cost or because of the watts per square foot so that's a great question all right very good thank you um Tony this next question is actually kind of a follow-up
• 49:00 - 49:30 who Tony is responsible for the lighting control system sequences of operation so that is a that is a great question it's a fantastic question and I would say that the the ultimately the engineer is responsible for that the person that's specifying the lighting control system is responsible for creating the sequence of operations but I'd like to put a little I guess I'd like to put a little asterisk on that answer though so we should be the ones that are
• 49:30 - 50:00 understanding all of the code requirements and that is going to drive a lot of the sequence of operations and I sort of touched that on that a little bit earlier that a lot of times your your clients are really just wanting to you to do sort of code minimum and if you do have a client that isn't interested in going past code minimum minimum isn't interested in the additional benefits you can get from a more advanced lighting control system then it might be possible for you as an engineer to sort of completely own that giving you of a building schedule
• 50:00 - 50:30 because that is usually an important piece of the of the of the sequence um the best way for that to be put together is a collaboration between at least between the client uh the facility director or whoever that is and the engineer so that you can start to talk about uh those desirable things that you can do um sort of in addition to the code so what are your schedules and do we need to have multiple layers of schedules you know is your building want to have a
• 50:30 - 51:00 morning day night late night sort of thing um you know if I don't have that information from an owner I'm going to make my best guess and you're going to get a day and a night and that's what you're going to get but maybe your building really operates in in more levels than that right so it is the engineer's responsibility however you get a lot better product if it's if it's a design team responsibility that everyone's involved sure got it
• 51:00 - 51:30 all right gentlemen this next question I'm going to ask you first Michael Tony if you want to chime in you might have some input Michael what was the most complex lighting design project you've worked on so if you could tell us a little bit about the challenges and then the solutions uh sure that's a great question so one of the most complex lighting projects that we worked on was for a library and they wanted to they actually wanted to
• 51:30 - 52:00 see the emergency lighting not just the uh the fixtures but they also wanted to see um there's what's called a point by point which I think most electrical engineers are familiar with it basically shows you the lighting levels and there's a um we with the software you could tell it to provide the levels at a particular height whether it's the workstation height or at the floor with um with emergency lighting so what made that uh
• 52:00 - 52:30 project challenging was the plans examiner required that but then the the owner required uh multiple renderings using different types of lighting fixtures and one of them was for a particular University here in Ohio um I'm not sure maybe those of you um on the in this presentation can guess University but they require a specialty uh fixture made up of specialty LEDs so
• 52:30 - 53:00 we had to model this and we also had to design it and uh we once we did all that and we thought this was going to be manufactured and put in yeah value engineered out of the project so I think we heard that term value engineering quite a bit and after spending all that time on it it would have been nice to see the finished product but uh yeah there's some um just a basic software that you can use to to provide those elimination levels but when it comes to
• 53:00 - 53:30 modeling sometimes you have to use a more robust and usually that means more expensive uh lighting lighting software about yeah I think uh I mean there's a huge list of different complexities I run into but I think the one that comes to mind uh right off the cuff would be a if you've ever done Lighting in a mass Timber building they can be very difficult to to coordinate so uh was
• 53:30 - 54:00 using working on a university building that was going to be built Mass Timber with a lot of that exposed um the the problem is we don't want to have surface mounted conduit all over the place and there's this beautiful Mass Timber that we want to keep but what that does is makes it a lot harder to do things like codes even to do suspended fixtures uh you might be drilling through the floor slab of the floor above and using essentially a floor box or poke through to feed that
• 54:00 - 54:30 that device right because you can't just core through the the mass Timber so if you don't want to have exposed conduit everywhere you have to really think carefully about what lighting tools you're using and how you get power to your lights in a situation like that so I thought that was a really fascinating challenge very cool thank you uh Tony I'm gonna send this next question to you this is directly related to the poll we just did
• 54:30 - 55:00 um what are some UV lighting applications yeah absolutely so um you near UV lighting has been around for for a while um that was starting to sort of make a uh make some waves and a few years before covet happened um what you really saw as soon as covet hit was this industry shift to what can we do to help uh the world deal with this sort of pandemic and that's where you saw sort of a I'm going to call it a Revival of UV so we've known as a
• 55:00 - 55:30 society as a as a scientific community that UV has helped for 100 years more than 100 years um but it's being more well understood and the problem with us not putting it in inside of buildings is that um UV true UV light can still be dangerous right we don't want to sunburns and things um but uh modern applications to get back to the question modern applications
• 55:30 - 56:00 you can look at um there's a lot of products now that are built a lot of fail safes to ensure people don't get the dangerous UV arrays there's also filtered UV products now that is out that it is safe for people to be under During certain times but really what you're going to be looking at is any space where um that an extra level of cleaning or cleanliness or sterilization is going to be beneficial now where that's helpful
• 56:00 - 56:30 could be any type of project do a lot of Health Care you know an infectious control patient room great spot for it right so with the way that's typically done is going to be that a UV light will be at some height within the space and warm air will kind of rise with all the viral load and everything in that space the UV light purifies or sterilizes that and then mechanical ventilation goes throughout the space to do the Clean Air but even things such as schools where you know you might have a bunch of
• 56:30 - 57:00 I'm not a I'm a childish first currently it might have a bunch of sticky children kind of like around with a lot of dirt and you know after recess they come back and having that extra level of cleanliness in there just is going to help control the viral load in those spaces so um where should it be used there's a vast vast of the amount of spaces where you might have benefit from that um and then it's how are you gonna how are you going to use it this is it a space that is occupied most of the time throughout a day
• 57:00 - 57:30 um is there is absolutely going to be empty for a couple hours a day your design is going to be different depending on how that space is used and what you're trying to accomplish got it I don't think we've covered sticky children before so thanks Tony um Michael this next one's for you how do you show uh cost of Energy savings to a customer that's a great question so in Ohio with
• 57:30 - 58:00 um State projects we have to be able to show a payback analysis that the whatever lighting fixtures you're putting in there will be a five-year payback analysis so what um what is included in that calculation you have to find out the cost of energy that the you find out who the power company is and typically find out from the owner what right they're they're paying and if it's more than just five years
• 58:00 - 58:30 we went with a um with a cost analysis we want to include maintenance costs in there so one of the things about LEDs is that people think they'll last twenty thousand thirty thousand fifty thousand hours but um it's been my experience that usually the ballast doesn't last that long I'm sorry not the boss the driver driver doesn't last that long so we factor in the cost of replacing a ballast and we can get the cost of the facilities person that's working for the
• 58:30 - 59:00 owners to refactor all these items into our payback analysis and our energy analysis and that gives the the owner a client a a bigger picture of the Energy savings and operational savings sure sure okay one more question and Tony this last one goes to you what's CCT do you recommend for Health Care specifically
• 59:00 - 59:30 that is that is a very good question so when it's up to me to decide when I'm designing I will typically go with 4 000 Kelvin and here is my reasoning for that so the way that uh our eyes perceive light the way that the human eye is perceived is at a higher color temperature that more blue is perceived as a brighter space okay so there is then a theoretical benefit to having higher color temperatures
• 59:30 - 60:00 because you can perceive that as a higher brightness but then there's also that humankind tends to feel a little bit less comfortable once you start to get to a really high color temperature five thousand six thousand sixty five hundred Kelvin so I see 4000 Kelvin is a really great compromise between good perception of brightness and comfort and that's where I'm shooting for all right excellent well I'd like to wrap up by thanking our extraordinary subject matter experts Michael chow and
• 60:00 - 60:30 Tony Staub for surrendering so much information uh their extensive knowledge of lighting design has been greatly appreciated also I would like to thank Lutron for supporting this education session and before you go we have one more poll so a couple of quick questions will pop up for you on your screen as soon as this webcast ends please do answer those questions we'd like to do better on the next one
• 60:30 - 61:00 and finally on behalf of Consulting specifying engineer and cfp media and Technology thank you so much for joining us and we'll see you at the next education session goodbye