HVAC SYSTEMS ILLUSTRATED: Step-by-Step Diagnostics and Maintenance | A Complete Field Manual for Residential and Light Commercial HVAC Service

HVAC SYSTEMS ILLUSTRATED is a practical diagnostic and maintenance manual for residential and light commercial HVAC service. It is structured to move from core principles into applied field troubleshooting, with coverage that includes refrigerant behavior, superheat and subcooling, compressor failure modes, furnace sequence of operation, airflow diagnosis, outdoor and indoor unit electrical faults, heat pump diagnostics, mini split service, preventive maintenance, refrigerant handling, and real service call walkthroughs.The book is designed for readers who need a systematic method rather than scattered tips. It teaches how to isolate failures through observation, meter readings, pressure analysis, and sequence-based troubleshooting so that components are proven bad before replacement.It also addresses the physical service procedures required after diagnosis, including leak detection, refrigerant recovery, evacuation, charging, commissioning, and tool selection.This makes the book suitable for trade students, apprentices, service technicians, facility maintenance personnel, and technically minded homeowners who want a structured field reference grounded in real equipment behavior. Read more