What function does an economizer serve in an HVAC system?

The function of an economizer in an HVAC system is to utilize outdoor air for cooling when conditions are favorable. This setup helps to reduce the energy consumption of the cooling system by taking advantage of cooler outdoor air to lower the indoor temperature, especially during mild weather conditions. By allowing this natural cooling process, the economizer can significantly decrease the reliance on mechanical cooling systems, leading to improved energy efficiency and lower operational costs.

In essence, when the outdoor temperature is appropriate, the economizer facilitates the introduction of fresh air into the building, which can effectively cool the space without the need for powered air conditioning units. This process not only enhances energy savings but also contributes to better indoor air quality by increasing the amount of fresh air circulating within the building.