Take your chiller troubleshooting skills to the next level by diagnosing specific causes of two different alarms in this course. Explore four reasons a chiller system would throw a high pressure cutout alarm. Then diagnose five reasons why a chiller would have loss of flow from the evaporator or condenser.

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.

Learn what the major components of a chiller unit are and how each one fits into a pressure enthalpy chart, on both the high and low side of the system.

By the end of this course learners will understand the importance of cleaning and types of cleaning jobs. They will also be able to explain the difference between cleaning, sanitizing, and disinfecting; the importance of dwell time; and where to find germ touch points and hot spots.

In this intermediate course on Combustion Analysis, we will explore how combustion occurs, what gases are produced, and what acceptable ranges are. With each scenario, you will be guided with realistic steps of interaction to complete the procedures for how to fix the gas furnace

A brief overview of residential HVAC Air Balancing as it relates to the HVAC industry. This course is intended to provide a basic understanding of how to balance and adjust a system to ensure an accurate system air balance and optimal occupant comfort.

A brief overview of how humidity affects comfort, types of humidifiers and dehumidifiers, and installing dehumidifiers and humidifiers for ideal humidity levels according to HVAC industry standards. This course is intended to provide a basic description of humidity and comfort for learners.

Learn to troubleshoot common mechanical and electrical faults with a simple 3 phase compressor split commercial AC unit. It's hot outside and these diners need some relief while they enjoy their meal. Do you have what it takes to fix the problem?

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.

This detailed course starts with an introduction to starting relays. It covers current relays, potential relays, solid state potential relays, and PTC thermistor starting relays. It describes how a hard start kit works and when to use one. In the start capacitors lesson it covers why you should add one and how to replace a start capacitor. And finally, in the run capacitors lesson you will learn how run capacitors and start capacitors differ and how a run capacitor helps start and run a motor.