The book you are looking for is most likely " Basic Refrigeration and Air Conditioning

Engineering Students looking for a solid conceptual foundation.

Week 6 — Ducting, Fans & HVAC Equipment

As Rohan continued to explore the world of HVAC, he discovered that the field was constantly evolving. New technologies, such as inverter-driven systems and Building Information Modeling (BIM), were transforming the industry. Anant Narayan's book, now dog-eared and worn, remained a trusted companion, offering insights and guidance as Rohan navigated the complexities of modern HVAC design.

: The material often touches on reducing power consumption and understanding temperature/pressure relationships to optimize system performance.