Part 2

HVAC Fundamentals

Prerequisite: None

Duration: 4 hours

Learning Objectives/Competencies for the module
After this class, a building operator should be able to:

  • Describe basic HVAC system components and how they correlate and interact with each other.
  • Differentiate between different boiler types, describe boiler operations, and be familiar with the various components of boiler maintenance and hot water distribution methods
  • Recall basic furnace components and their maintenance.
  • Recognize common failure modes of HVAC equipment.
  • Understand and be able to explain the refrigeration cycle.
  • Describe various heating and cooling systems and their maintenance and be able to explain why safety measures are necessary and what those entail.
  • Explain the role, components, and importance of ventilation and air distribution systems.
  • Discuss the components and benefits of effective preventative operations and maintenance programs and be able to describe O&M best practices.


  • Introduction to HVAC
    • HVAC Systems Overview
  • Heating & Cooling Systems
    • HVAC Systems – Basics
    • Facility HVAC Overview
    • Mechanical Room
    • Boiler Fundamentals
      • Boiler Types
      • Boiler Operation
      • Boiler Maintenance
    • Hot Water Distribution Methods
    • Furnaces
      • Basic Furnace Components
      • Furnace Maintenance
    • Packaged HVAC Systems
      • Components of a packaged unit
    • Common Failure Modes for HVAC Equipment
    • Refrigerant Evolution Away from ODS
    • Refrigeration Cycle Terms & Definitions
    • Refrigeration Cycle
    • Chilled Water Systems Basics
    • Cooling Towers
    • Cooling Tower Maintenance/li>
    • Cooling Tower Maintenance & Safety
    • Chilled Water Systems
    • Water Cooled Chiller
    • Water-Side Economizer
    • Evaporative Cooling
    • Condenser Illustrations
    • Air-Cooled Chilled Water System
    • Heat Pumps
    • Mini-Split Systems
    • Maintaining and Optimizing Chilled Water Systems
    • Building Cooling Optimizing
    • Activity – Walk Through the System
  • Air Systems
    • Basics
    • Constant Volume with Reheat
    • Variable Air Volume with Reheat
    • Dual Duct
    • Multizone
    • Air System Fans
    • ASHRAE Fan Types
    • Coils
    • Air Filters
    • Filter Efficiency
    • Dampers
    • Damper Maintenance
    • Ventilation
    • Ventilation Requirements
    • Minimum Outside Air
    • Discussion Question
    • Air System Terminals
    • Ducting & Air Distribution
    • Air Outlets and Inlets
  • Learning activity: Mechanical Room Components
  • How do we maintain these systems?
    • Elements of Effective O&M
    • Operation Tasks
    • Maintenance Tasks
    • Value of O&M Best Practices
    • Resources for O&M Best Practices
    • Types of Maintenance
    • O&M Practices
    • Case Study O&M Best Practices

Methods and Learning
Discussion Questions

Learning Activity: Mechanical Room Components