ISO/WD 21075

Abstract

This international standard describes the steps of designing the whole-building ventilation system for residential buildings and the points to be taken into account regarding the indoor environment and energy consumption. This standard allows the designer to plan a whole-building ventilator that improves indoor air quality, the auditory environment, and thermal comfort, and that also uses energy in a practical way. They also touch on the performance of the building in order to operate a whole-building ventilator well. Excluded: - Criteria for indoor air quality - Criteria for indoor thermal comfort (covered by ISO/TC 159) - Criteria for auditory environment (covered by ISO/TC 43) - Evaluation method of energy performance of heating or cooling equipment - Evaluation method of energy performance of ventilators (covered by ISO/TC 86) - Evaluation method of energy performance of heat recovery components (covered by ISO/TC 86) - Evaluation method of building performance (covered by ISO/TC 163) - Design steps and evaluation method of localized ventilation equipment - Ventilation systems using natural driving force in all ventilation airflow path