Provided HVAC system installation for the Orinda Intermediate School Student Services Building. The project involved the installation of complete heating, ventilation, and air conditioning systems per mechanical specifications. Energy recovery ventilators (ERVs) were integrated to improve indoor air quality and efficiency, while variable flow cassette units (VFCs) were installed for temperature control in classroom and office spaces. Ductwork and air distribution systems were designed for optimal airflow, and final test and balance procedures were conducted to verify system performance and compliance with project requirements.