This course covers the basics of pressure and refrigerants. Starting with barometric pressure, what it is, and how to measure it. After that we explore how to change pressure using a pump before moving on to the compound, or low-side, gauge. Finally, we explore at what a gauge manifold is and how to read it as well as taking a more in-depth look at the pressure-temperature relationship and how to read a chart reflecting it. By the end of the course you’ll have a great foundation of knowledge on pressure and refrigerant basics. This will not only help to better prepare you for the HVAC industry, but also be ready to learn more advanced concepts and ideas to expand your expertise.

In this course, you’re going to learn about the three types of HVAC motors available, PSC, variable speed, and constant torque. Each lesson will discuss how the motor operates, what affects its performance, factors to consider when replacing one, and installation considerations. You’ll learn about the differences between each of these types of motors, and how to determine what motor is best suited for the application. By the end of this course, you will have gained a foundational understanding of these different HVAC motors and be able to appropriately select one for replacement. Let’s jump in!

In HVAC, a big part of the job is handling repairs, which often involves installing a new part. This course takes a look at some of the most common parts you encounter when working with these systems. First we’ll discuss capacitors, where you’ll learn about their purpose, function and various applications. After that we have a lesson on contactors and surge protectors. Following these lessons we have a couple more on hard start kits, looking at how they work and when you might need them. Finally, we’ll conclude with diving into filter line driers. This is a great course to help you understand these essential aftermarket HVAC parts.

In this course you will complete various simulations in which you’ll learn different methods for measuring airflow in a blower. You will look at the flow plate procedure, how to determine airflow using the static pressure differential, how to traverse a duct with an anemometer as well as the delta T method for both heating and cooling. By the end of the course you’ll have learned five different procedures to measure the airflow in a blower.

This course is all about a really fundamental and useful concept in electrical work – the ampacity of conductors—that is, the maximum amount of current that a conductor can carry on a continuous basis without getting dangerously hot. In the lessons of this course you will progress gradually, beginning with a simple introduction to the key ampacity tables in the National Electrical Code, because working with ampacity is all about knowing where to find the values. We show you exactly how to find the ampacity for any wire, but then go further to explain things like how to choose which temperature column to use, based on environmental and code exceptions. And we cover, pretty carefully, the reasons why you often have to adjust the values found in the ampacity tables, based on what are called ‘conditions of use’ like the ambient temperature around a wire or how many wires are crammed inside a conduit. And we end the course with a nice set of worked examples, so you really get comfortable with applying everything you have learned about ampacity.

In Array Assembly Installation, you get to make measurements, manipulate tools and assemble parts just like you would on an actual residential roof. You will install a solar array using a rail-based mounting system over composition shingle roofing. This comprehensive course includes snapping vertical rafter and horizontal attachment lines, mounting flashed rail attachments, attaching rails, installing optimizers, securing array wiring, and attaching the solar modules.

By the end of this course learners will recognize the common causes of back injury and how best to avoid them. They will understand the importance of physical fitness for the back and will review the characteristics of healthy posture and lifting technique.

Learn about the basic tools of an HVAC technician including multimeter, gauges, wrenches, pipe benders and wire cutters.

There are many different tools required for the plumber, from daily jobs to a veteran challenge. This course covers the basic tools you'll use most. It goes through various different categories, explaining each tool's application and helpful tips, with safety practices in mind. It begins with tools used in the home, then transitions to tools for commercial application. Finally you'll explore some helpful repair tools that aid in common problems.

So, you want to be an electrician? In this course you'll learn how you can start your career in the electrical field. It covers the settings and career paths you can take, the education and training you'll need, and gets you started with safety guidelines for electricians. Being an electrician is a very versatile trade that transfers to other trades like HVAC, solar, plumbing and facilities maintenance. Are you ready to get started?