ASHRAEThe following links will let you download materials from ASHRAE presentations that I have done.
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April 2019 Oregon ASHRAE Trade Show
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The .pdf file to the left contains the slides I used at the Oregon ASHRAE Controls Trade Show Presentation.
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I mentioned a number of resources in the presentation including:
- A paper about how one of the clean rooms I worked with at KSA was dead-on in terms of meeting the clean room qualifications but was using a lot more energy than necessary to do it and how a commissioning process that focused on efficiency and sustainability in addition to meeting the fundamental process requirements in the clean room improved things.
- A blog post about the persistence of commissioning's benefits and my first exposure to the problem when I discovered a time clock that had never been set up and thus never delivered the intended savings.
- The DDC Online web site, which contains data and network architecture diagrams for many, many different control system vendors presented in a generic format.
- The Control Design Guide, which includes recommendations for a design process similar to the one I was discussing, sensor selection and application guidelines, and a point list tool similar to the point list I used as an example. Note that because of when the code behind it was written, this will run better in a version of Internet Explorer with compatibility mode turned on. This is true whether you are working with the tool on line or have downloaded it for use off line.
- Control Spec Builder, which is a tool that helps you to develop specifications, point lists, sequences, and system diagrams in a MS Word format.
- System diagram resources, including a PowerPoint tool that has quite a few symbols built into it, my AutoCAD symbol library, some PowerPoint and AutoCAD system diagram examples. If you want to understand the details of how I go about developing a diagram like the one I used as an example, I wrote a string of blog posts that are a sort of text book on the topic.
- Links to vendor software that will allow you to work with control logic in a graphic programming language format and a ladder diagram format, including an example of each format that you can use to play with.
- A tool that we built that allows you to develop logic diagrams in Excel, including a PowerPoint presentation that explains the symbol library and some examples of logic diagrams built with the tool.
- An exercise you can do involving a hot water system serving reheat and finned tube radiation loads where you develop the logic to control the heat exchanger and then make some energy saving modifications to it. There is a blog post that provides an overview of the exercise and a web page on this site that has all of the resources you need to try it out. The exercise involves working in a SketchUp model and the SketchUp Models page of this web site explains how to go about getting SketchUp installed and running on your desktop.
- Web sites with examples of control standards built around the concepts I discussed, including downloadable logic diagrams and specification files that you could use as a starting point.
- A blog post about the Control System Integration and Coordination Meeting concept, which includes the link to the paper Karl Stum wrote that I mentioned.
- A blog post that discusses aliasing and other factors that affect the accuracy of the data we are looking at in a current technology DDC system.
- A page on this web site with a number of PID resources, including a link to the place where you can get a copy of David St. Clair's book.
January 2018 Oregon ASHRAE Lunch Meeting
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The pdf file to the left contains the slides from the presentation I made to the Oregon ASHRAE Chapter for their January 2018 lunch meeting.
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If you are interested in exploring the central plant sketch up model that I mentioned and used for the system diagram discussion, you can find the latest version on the Sketchup page of this site. I am very close to updating and adding to that page to provide a findings list for the models and also a current "answer" if you decide to develop a system diagram.
You will find an older version of the model along with an instructional video about making a system diagram for it in a blog post I did titled System Diagrams: Practice Making a System Diagram. The "answer" is linked from the subsequent blog post. The only real difference is that the current version of the model is much more detailed than the version provided in the blog post links.
If you found the logic diagrams I used to illustrate the logic for the cooling tower fan control to be of interest, you can download the current version of the files associated with tool I used to create them on the Logic Diagram page of this website. I have also included the actual examples in a updated version of the tool that I have yet to upload to the website for you to download above.
Finally, a number of people were asking about the self study checklist and technical guide, both of which are built around the 10 commissioning skills I mentioned towards the end of the presentation. You will find them on the EBCx Skills Guidebook page of the website (under the General Resources page).
You will also find a Resource List under the General Resources page. The list is a compilation of mostly free resources that we put together to support our classes. We try to go over it once a year or so to make sure the links are current and add stuff that we have found, but if you find a broken link, let us know and we will see if we can repair it.
We are about to upload a new version of the resource list, so you may want to check back every once in a while. to see if its there yet. Generally, we try to note any changes and additions to the site on the "What's New" page, so all you need to do is check there.
You will find an older version of the model along with an instructional video about making a system diagram for it in a blog post I did titled System Diagrams: Practice Making a System Diagram. The "answer" is linked from the subsequent blog post. The only real difference is that the current version of the model is much more detailed than the version provided in the blog post links.
If you found the logic diagrams I used to illustrate the logic for the cooling tower fan control to be of interest, you can download the current version of the files associated with tool I used to create them on the Logic Diagram page of this website. I have also included the actual examples in a updated version of the tool that I have yet to upload to the website for you to download above.
Finally, a number of people were asking about the self study checklist and technical guide, both of which are built around the 10 commissioning skills I mentioned towards the end of the presentation. You will find them on the EBCx Skills Guidebook page of the website (under the General Resources page).
You will also find a Resource List under the General Resources page. The list is a compilation of mostly free resources that we put together to support our classes. We try to go over it once a year or so to make sure the links are current and add stuff that we have found, but if you find a broken link, let us know and we will see if we can repair it.
We are about to upload a new version of the resource list, so you may want to check back every once in a while. to see if its there yet. Generally, we try to note any changes and additions to the site on the "What's New" page, so all you need to do is check there.
