Author: Ralph Shelton

HVAC Engineering Technology program (HET) at CLC

Our HET program is designed to teach thestudents anything dealing with heating, cooling, ventilation or airconditioning. We have high school students coming in, and we have peoplecoming into our program to change careers. They will start out with verybasic circuits, working with series, and parallel type circuits, and then work upinto a complete heating cooling system. The skills they can build up and leadinto can be anywhere from very basic, from working on houses to working inindustrial buildings. We have very high tech equipment from high efficiencyheating and cooling units. Wireless digital type controls. So they’re gettinghands-on experience as they would find in the field. What they love of ourprogram is the hands-on portions of it. Not many schools in the country havewhat we have here.One of the greatest things about the HVAC program is thatit’s a growing field. People can come in to field and expect to leave with the skillsto be able to make an income, they could take care of family. Our tuition isextremely low and most our instructors have over 20 years in experience. Theway our program is built is that we have stackable certificates and each one ofthose certificates will step right into a AAS degree.If I could say one wordabout this career, it would be life-changing..

eLearning Module: DriveWizard HVAC – Tools

Hi, I’m Paul Avery I’m a Product Training Engineer with Yaskawa’s Technical Training Services This video explains how to utilize DriveWizard HVAC ‘s Application Wizard and the Convert Project Tool. Under the Tools tab in DriveWizard HVAC you will find the Application Wizard. The Application Wizard will step a user through the drive setup process by asking them a series of relevant questions and then configuring the proper parameters automatically. It can be very helpful for people that are either intimidated by the breadth of parameters in the average drive or people that want to make mostly typical adjustments for their application and want them all put in one place.Now if you have already changed any parameters in your drive when the Start button is clicked you will receive a message asking if you would like to initialize the drive or not either click Yes to start out with a clean slate or select No to leave the existing Modify Parameters alone Using the Wizard as a Simple Task instead of looking at a long list of parameters and numbers the Wizard breaks down setup into simple steps. Parameter settings have drop-down menus and also helpful descriptions. Additionally, there are graphics to give you a better understanding of how you might need to set up a particular function. Once you reach the end of the Wizard there is an option to save the parameters to the Active Project only or to write them to the Connected Drive as well as save them to the project.At this point the Wizard prompts you to perform an Auto-tune. Auto-tuning is only an option and is not required. There is also a Convert Project Tool available in DriveWizard HVAC. This tool can convert an older generation project file to the 1000 generation equivalent automatically. Throw out that pen and paper because this tool makes updating legacy applications easier! The tool will automatically select a new model number based on what the old drive was so be sure that the correct new drive is selected before converting the project.Click the Go button and the process will start. At the end of the conversion you can view a Conversion Log which will list the Parameters and Settings that have been converted. After reviewing the Log, transfer the Parameters to the project and all you have left is to write the Project File to the new drive. If you have any questions about the information presented in this eLearning Module please feel free to contact Yaskawa’s Technical Support Group either by phone, email or via our website.Thank you! you.

Johnson Controls reinvents the thermostat

(soothing music) – [Narrator] The spaces weinhabit impact our lives every moment of every day. As humans, what surrounds us defines us. Our productivity, our creativity, our happiness. So shouldn’t our spaces be regulated with something just asversatile as we are? GLAS is a thermostat that moves with us. Its daily reporting provides the insights needed to create the perfect atmosphere for your business, your home, the places you want to visit, the places you need to visit. GLAS knows when you’re in theroom, and when you’re not. GLAS constantly monitors indoor and outdoor air quality and intelligently changes its settings making it capable of providing leading energy savings. And what’s behind the innovation? Microsoft and Johnson Controls. With Windows IoT core,Cortana voice activation and Microsoft Azure, GLAS isbuilt on Microsoft technology and brought to life by Johnson Controls. The beautiful combination oftechnology and aesthetics, GLAS was designed to make our spaces ours. Johnson Controls redefined the thermostat. Microsoft redefined the possibilities..

HVAC HEATLOAD CALCULATOR v8.1 (HLC)

Here we open a folder of a particular project for Heat Load Calculations You will find some excel file. Open “Heat Load Calculator v8.1.xslb” Enter design basis data as per your project Select Project City If the city is not in the list then you can manually enter parameters as shown Fill the other details (if required) Now go to RDS sheet. Click on import RDS button. Click on “Clear Data” Copy your Room Data from your excel sheet and Paste it In “Unformatted data” Sheet. Now click on create RDS button and please wait.RDS is generated and saved automatically in the software. After RDS is created select units one by one or you can directly select the units system from Ribbon window. Click on “Calculate Heat Load” Button And Please wait. Systemwise files have been created automatically and are getting saved in the project folder. As you can see, AHU files are generated in the project folder Click on glass wall schedule sheet As per project drawing add the glass/wall/roof details of the room in the table as shown. After adding the schedule just click on the green arrow which will export table data to the systemwise file and wait for a couple of moments.Click on door schedule sheet. As per project drawing add the door’s between two room In the table as shown. After adding the schedule just click on the green arrow which will export table data To Systemwise files and wait for a couple of moments. Your system wise summary sheet is ready. These are the final parameters for an AHU. For sharing calculation click on the main sheet. Select “HL Room Summary” then select “Excel W/O formula”. Select a folder or location to save a file and Wait. This Is a final output summary file Of Heat Load Calculation. Another report is generated for AHU manufactures click on “Generate Report” and wait.This is the AHU selection sheet. This is DHU enquiry sheet This is a supply air & return air terminal summary sheet. Here you will have to select the sizes of a terminal for automatic calculation of diffuser or grill quantity. We can change SA/RA tag as per SA/RA type and size, for automatic selection of quantity. This is a pivot table of supply air & return air terminal summary This is AHU manifold details (Chilled water) sheet. Selection is calculated at a friction loss of 4 feet of water per 100 feet. The summary sheet for chilled water manifold. This Is AHU manifold details (Hot water) Sheet. The summary sheet for hot water manifold.This is a coil input-output condition sheet. With such a simple process Heat load calculation are done by using LEAL HEAT LOAD CALCULATOR. If you have any queries about LEAL HEAT LOAD CALCULATOR, please fill free to contact us at enquiry@lealsolution.com / 9422247938 THANK YOU.

Certificate Program for HVAC

<> AJ: My name is AJ and I’m 40 years old and I work with A1 heating, ventilation, and electrical. I had brain surgery about 10 years ago. I had bacterial meningitis and I had some brain damage as a result. I was a reporter. I was a writer and after the surgery, I just I didn’t have the mental capacities that I had before I got sick. So I had to do something different. my concerns were what was I going to be able to do, what could I no longer do, and in an employment environment being aware of your capabilities and the things you can and can’t do, it’s pretty important.I had been working with Nebraska VR for a little while after I got sick. And my counselor at Nebraska VR actually told me about the certification program. Carly: Certificate programs – they’re a short-term hands-on training program, they’re business led and so often times businesses come to VR and express a need of a high turnover area. In this specific one, it’s the HVAC helper position. Dana: What I find special about the certificate program is that it helps an individual who may not be ready for that post-secondary training, those associate degree programs, or bachelors programs. And they’re able to get to showcase their skills to an employer and be able to start working right away after the training is completed.AJ: My interest in the Nebraska VR Certification Program was learning a trade. I wanted to learn something that was going to last me for a long time. They had a few options for the certification program and the HVAC certification sounded like the best fit. Dana: We did some assessments to identify his ability to measure, which is a very important skill within this type of employment. There’s a lot of spatial aptitude that’s required for this occupation as well as mechanical aptitude. AJ: It sounded like it was something that I could be good at it. Carly: He started the training program and from day one he was very motivated and said “I am going to succeed in this” and that was a great thing to hear from a student.AJ: It was really great to know that Carly was there. There wasn’t any kind of you know here’s this program go off and do your thing. She was there when we had classes and she she talked to A1. Carly: Once he started his OJE here, which is on-the-job experience, I was getting information from the employer, his teacher, him…making sure that it was a good fit for him. As well as making sure that at the end of this 10 weeks, he was employable.Jesse: Meeting AJ for the first time hearing his story it was amazing. I mean, you know, he got interested in the HVAC field and he’s been with us for a couple years now. You know, [he’s] been a great addition of this company and right now he’s actually taking classes with me during the week to actually go forward to take his journeyman class. Dana: I have seen a lot of growth in AJ since first meeting him. Initially, he came to me it was just really unsure what he wanted to do and then when he explored options more he found that working here with A1 was definitely his niche. Carly: When I first met AJ he was really motivated to learn this trade and seeing him working full-time now is great. But, I don’t see it ending there. Whether it be additional training or moving up within A1. I think it’s a great start for AJ but I don’t see him stopping anytime soon. Jesse: Everybody wants to work and make a living you know and in what is AJ’s passion for it was great and that’s why we brought him on. AJ: Nebraska VR has really helped me see there is a light at the end of this tunnel. There is a whole lot of options and a whole lot of possibilities of things I can do and places I can go with my experience. <>.

Good HVAC Design – White Board Series

– Hi, I’m Dave Phelps of ICF Homes. I’d like to welcome you to another episode of our whiteboard series. Today, I will talk about good HVAC design and convection in a house. In our illustration, weshow a typical two story house with a basement. In this series, we showeach level of the house second floor, first floor, basement has it’s own thermostat. And it’s tied back into the heat pump. Each of the thermostatsare smart thermostats, meaning they can talk to each other. As each level of the house needs specific heating or cooling, they will then send that signal back to the heat pump and the heat pump will move the air along. But one of the really neat features about good HVAC design is to use our steady basement temperature. And get that steady basement temperature all the way up to thesecond floor of the house. Because all the energy that requires is just the fan of the heat pump itself to move the air from the basement all the way up.And the way we do that, is a zone system. So for example, if thesecond level of the house in the summertime, we’vegot a 90 degree day outside. And we’re trying tomaintain 70 degrees inside. It’s gonna heat up on thesecond floor of the house. But we’ve got our steadybasement temperature, which by use of thesteady ground temperature of, we say, 55 degrees.This steady basement temperature, the air from the fanrunning on the heat pump will pull air in low in the basement. And it will pull it into the system and because the basementdoesn’t need cooling and the first floor doesn’t need cooling, the dampers here are closed. This damper up top opens up, and it blows out the air from the basement that moved all the way upto the top of the house that was already nice and cool, up to the top. It helped to cool thesecond floor of the house. If the first floor needs cooling, the same thing happens. This damper opens up andwe blow cool air out. The whole goal is to movethe air from the basement all the way up to the top of the house and back down, up and down. That’s really good convection in a home. Movement of the air around keeps the air very, very fresh and moving around. This is also the onlyenergy that’s required it’s just the fan of the heat pump.If for some reason weneed more cooling up top, the heat pump turns on. These dampers close. And it blows out more cool air at the top. And that is how we actually use our steady ground temperatureas a geothermal house. And we move the air throughout, and it is just a fraction of the energy to heat and cool a home if you utilize free energy. Most homes today, they donot have a zone system. There’s no damper here, and there’s no damper here. The duct work ends here. You only have one thermostaton the first floor of the house. You have another thermostaton the second floor. But you have your heatpump up in the attic. And this thermostat doesn’t go down. Actually the controlgoes up to the heat pump. Now, if the first floor needs cooling, it blows cool air out here, but it also blows coolair into the basement. The basement never needed it. And that’s why many homes the basements feel so cool in the summertime, and/or sometimes think cold is we’re getting coldair from the heat pump, it doesn’t need it.Because the first floor needed cooling, the basement didn’t need it. But most homes, the way they’re designed, cold air blows out in both areas. The other challenge ison the second floor, you’ve got your heat pumpup here in the attic, it could be 140 degrees in the summertime. And your heat pump isa 140 degree metal box. And you’re trying toblow 70 degree air out from a 140 degree metal box. They do it. It can be done. It takes an awful lot of energy to get air from 140 down to 70. That’s the way a lot of homes are, but it’s just not the mostefficient way to do it. This zone system, moving the air around throughout the house, it can be done whether it’s a conventional wood-framed house, or an ICF home.Thank you for your time. More to come. Have a good day..