This module provides an overview of the essential components found within a standard heating system and explains how they vary based on the specific setup. It details the operation of heat exchangers, gas valves, and motor assemblies responsible for generating and distributing warm air. Additionally, the module emphasizes safety by describing the critical roles of flame sensors and limit switches in monitoring temperature and preventing gas buildup.

This module examines various specialized components found in both heating and cooling HVAC systems. It provides a detailed look at the outdoor condensing unit's design, the specific characteristics of refrigerant line sets, and the critical function of filter dryers in maintaining system longevity. Additionally, it covers the operation of reversing valves in heat pumps and the different electrical voltage standards used to power internal controls and motors.

This module explores the internal operations of a heat pump system. It traces the journey of refrigerant through key components like the compressor, condenser, and evaporator, explaining the critical state changes from vapor to liquid and back again.

This final knowledge check is designed to reinforce key concepts from the lesson and assess your understanding. You’ll apply what you’ve learned through a series of multiple choice questions, helping ensure you’re confident and ready to move forward.