Refrigeration and Air Conditioning: The app is a complete free handbook of Refrigeration Air Conditioning which covers important topics, notes, materials on the course. The App is designed for quick learning, revisions, references at the time of exams and interviews. It has 143 topics with detailed notes, diagrams, equations, formulas & course material. it has has 5 chapters on important topics like compressor HVAC, refrigerator, condenser, thermostat, CRO and AC etc. Download the App as a