Energy recovery ventilation systems are not allowed in which type of control system?

Energy recovery ventilation systems are specifically designed to improve the efficiency of heating and cooling systems by transferring energy from exhaust air to incoming fresh air. However, they are not suitable for smoke control systems due to the unique and critical requirements of maintaining safety and air quality in the event of a fire.

In smoke control scenarios, the primary focus is to manage smoke movement and ensure occupant safety by providing clear evacuation routes and minimizing smoke accumulation. The entry of potentially contaminated air from smoke into the building through energy recovery systems could pose significant safety hazards and compromise the effectiveness of smoke control measures. Therefore, building codes and safety regulations prohibit the use of energy recovery ventilation systems in smoke control systems to protect occupants and ensure compliance with safety standards.

In contrast, control systems based on temperature, humidity, or pressure are designed for general climate control and can benefit from energy recovery methods without compromising safety.