This module introduces Air-conditioning and Mechanical Ventilation (ACMV) systems and their design aspects. Students will develop the competence to perform system design, equipment selection and sizing, operations and maintenance of ACMV equipment, and evaluate the Indoor Environmental Quality. The topics covered include principles of refrigeration and air-conditioning, thermodynamics and heat transfer, air psychrometric and psychrometric processes, air-flow basics, pumping and fan system basics, and building cooling load calculations and indoor air quality.