Learning Outcomes

Alternative Cooling Systems

Basics of HVAC Systems

Air Circulation Systems

HVAC Preventative Maintenance

Water-Based Cooling Systems

Refrigerant-Based Cooling Systems

Lesson Summary

When you think of the types of critical equipment that span all kinds of critical facilities, HVAC equipment is probably some of the first that comes to mind. 

As a Critical Operator, you will need to know not only what this critical equipment is and how it functions, but the basic scientific ideas behind the critical functions they provide. In this module, you will learn about the fundamental concepts related to heating, ventilation, and air conditioning.

Water Supply and Drainage

Secondary Systems - Facility specific

Plumbing and Mechanical System Preventative Maintenance

There are a few critical systems that will be found in every single critical facility you might encounter—HVAC is one, and plumbing is another. Every facility will rely on the water supply and waste removal that a plumbing system provides. In addition, there are numerous other kinds of secondary mechanical systems that you may come across as a critical operator, directly related to the kinds of services or products that the critical facility provides.

Fire Detection Systems

Fire Suppression Systems

Building Construction, Fire Prevention, and Emergency Lighting

Emergency Power Off System and Preventative Maintenance

In a critical facility, it is important that there is infrastructure in place that will protect the people and equipment in the event of an emergency, such as a fire or electrical event. There are numerous components and devices that are part of the fire detection and suppression systems that provide the necessary preventative and protective services. In this module, you will identify and describe the fire safety, systems, and equipment that are integral to a critical facility.

Common Hazards and Personnel Protection

Emergency Response Procedures

In a critical facility, it is highly likely that there are hazardous materials or specialized equipment that could pose a threat to those working with these items and even just the personnel or general public in the vicinity of the space. As a Critical Operations technician, you need to be aware of the numerous hazards that could potentially harm the critical equipment or people in your facility, and how to respond if any of these hazards threaten to affect operations or cause injury—or worse.

Critical Facility: Critical Infrastructure Assessment

Learn about critical infrastructure, hazard identification, and preventative maintenance with this free online course.

Critical Facility: Critical Infrastructure

This free online Critical Facility course will teach you the skills required to ensure the safe and efficient operation of critical infrastructure. Critical infrastructure such as HVAC, plumbing, and fire systems are used in almost every business in the world. As a critical infrastructure operator you will need to be familiar with critical infrastructure equipment. This course teaches you the science and functions of critical infrastructure.

6 Best Courses to Become an Influencer in 2025

6,000+ Online Courses from California Community Colleges: A New Search Tool by Class Central

[2025] Massive List of Thousands of Free Certificates and Badges

Open edX Conference 2024: Program & Speakers

How Online Course Platforms Track Learners in 2022

12 Best Laravel Courses for 2026: Ship Sites Fast

FutureLearn’s 2021: Year in Review

8 Best Geology Courses for 2025

262K Courses, 833M Enrollments: Breaking Down Udemy’s Massive Catalog

2U Powered Degrees Pricing Chart: 112 Programs from $20K – $200K

Beginning to Program: Review of CS50 Scratch Course

7 Best Technical Writing Courses to Master Documentation and Communication

6 Best Node.js Courses in 2025

Class Action: 50,000 Seek Payouts, Costing Coursera, Udemy Millions

2025’s Online Education Shakeup Claims Another: Skillshare’s CEO Departs

University of Sheffield Ends 11-Year Partnership with FutureLearn