What is the primary purpose of a heat exchanger in an HVAC system?

The primary purpose of a heat exchanger in an HVAC system is to transfer heat between fluids. This component plays a crucial role in both heating and cooling processes by allowing thermal energy to pass from one fluid to another without mixing them. For instance, in a cooling system, the heat exchanger helps remove heat from the indoor air while transferring it to the refrigerant, allowing the air to cool down. In heating systems, it enables warm air or water to deliver heat to a space while functioning economically and efficiently.

This heat transfer is vital in maintaining the desired temperature and energy efficiency within the HVAC system. By facilitating this exchange, the heat exchanger ensures optimal performance, contributing to overall system effectiveness and comfort in indoor environments. The focus on heat transfer underscores its integral role in the functionality of HVAC systems, distinguishing it from other components that serve different purposes, such as filtering air or regulating airflow.