DB31/T 522-2011 in English

This document provides technical specifications for the energy efficiency improvement of ventilation systems and equipment. It outlines the requirements and guidelines for the design, installation, and operation of ventilation systems aimed at enhancing energy performance. The content covers various aspects including system design parameters, energy consumption evaluation methods, and optimization strategies. It also includes recommendations for the selection and application of energy-efficient ventilation equipment. The document is intended to support the implementation of energy-saving measures in ventilation systems, ensuring compliance with relevant technical standards. It addresses key factors influencing energy efficiency, such as airflow management, system integration, and operational control. The information presented is applicable to a wide range of ventilation systems used in different building types and environments.