In this course, you will learn about parallel rack refrigeration systems. These are one of the most complex types of commercial refrigeration systems. You’ll learn about the application of large-scale parallel rack systems and what makes them a good fit for the needs of supermarkets. Finally, you’ll learn more about the different components of parallel rack systems. You'll describe how they operate and interact in rack systems. This course makes use of diagrams to help you understand the dynamic operation of these systems.

The Introduction to Refrigeration Systems course takes all the physics you’ve learned so far and applies it to a simple refrigeration and air conditioning system. System diagrams and the Baseball Diamond info graphic will help internalize the core roles of each component in the system. Terminology will be introduced, in terms of pressure and temperature, as well as several real-world examples of air conditioning and refrigeration systems.

In this course, we’re going to be exploring the 2020 version of NFPA 70, National Electrical Code®. We will focus on a broad understanding of the material, so you can access and reference the codebook more easily when needed. We will cover the most impactful sections of the chapters, including grounded conductors, branch circuits, feeders, overcurrent protection, overvoltage protection, mechanical execution of work in the field, and "neat and workmanlike" installations.

In this course, you'll learn the fundamentals of commercial walk-in freezers. You'll identify the typical application of walk-ins in food establishments, as well as their typical customers, goals, and service delivery models. You’ll classify the different types and components of walk-in freezers. You'll understand what makes them different from other CREF systems and a better fit for the needs of food establishments. Finally, you’ll learn about the operation of walk-ins and the most common types of system failures.

This course introduces you to the components, setup, and function of gas, electric, and tankless water heaters. You'll start by learning about the anatomy of these three types of water heaters, and how to install them. It will conclude with an overview of the components of a water heater. The unique illustrations make this a great course for both beginners and experienced technicians alike.

Repairing a kitchen sink is one of the most common calls you'll receive. This simulation based course walks you through four common problems, guiding you step by step on how to troubleshoot and repair each one. This course covers drain and water line clogs, as well as a basket strainer leak. This is a fun, interactive and effective way to learn how to fix a sink.

This is an assessment simulation, where you'll use the steps and skills you've learned and practiced on the Interplay platform to determine the fault and fix each scenario. Use the bottom tool bar to navigate around the environment, inspect components, access tools, and view diagrams. This is designed to mimic a real-world scenario, so there's no step by step guide giving you instructions for how to troubleshoot the scenario.

In this course, you will gain a beginner's level understanding of kitchen ventilation. The course starts off with a couple lessons that identify the various configurations, including styles and location. After that you’ll learn about the differences between each of them and why you might choose one over the other. Next, there are several lessons here on the different blower types. In these lessons you’ll learn about all the considerations involved in choosing which type to use, as well as the sizing and ducting requirements. Finally, there's a lesson on ventilation filters where you'll take a look at the different types of filters.

In this course, you will learn about the different types of ladders and their different applications, how to safely use ladders as well as general safe practices to follow on the job. The lessons will cover how to select the appropriate ladder for the job, proper inspection and set up, and safe ladder usage.

If you have an interest in learning about landscaping, then this course is for you! This course will introduce learners to some basics of landscaping. First you will learn how landscaping fits into the overall construction process, followed by some career areas to seek out in landscaping as you continue to grow. Next, you'll learn about safety and how you can protect you and your teammates in the industry. Then you'll learn about some common materials and tools used. Finally, we'll discuss the installation process and how to provide maintenance to a lawn. Whether you are a beginner or just need a refresher on landscaping basics, this course will help to fill those gaps. We hope you enjoy the course!