Energy recovery ventilation systems cannot be applied to which of the following control systems?

Energy recovery ventilation systems are typically designed to improve indoor air quality while minimizing the energy costs associated with heating or cooling incoming fresh air. These systems work best in environments where controlling temperature, humidity, and pollution levels is essential.

In the case of smoke control systems, the primary function is to manage smoke during a fire event, ensuring safe evacuation routes and limiting smoke exposure to occupants. Smoke control systems operate under specific emergency conditions and are not focused on the general ventilation of spaces in a manner conducive to energy recovery. The primary goal here is to remove smoke as quickly and efficiently as possible, which fundamentally differs from the objectives of energy recovery ventilation, where the emphasis is on energy efficiency and consistent air quality control.

Therefore, energy recovery ventilation systems do not apply to smoke control systems because their designs and operational goals do not align.