The app is a complete free handbook of Refrigeration & ACs which covers important topics, notes, materials, news & blogs on the course. Download the App as a reference material & digital book for Mechanical engineering programs & HVAC tech degree courses. This useful App lists 143 topics with detailed notes, diagrams, equations, formulas & course material, the topics are listed in 4 chapters. The app is must have for all the engineering science students & professionals. The app provides quick revision and reference to the important topics like a detailed flash card notes, it makes it easy & useful for the student or a professional to cover the course syllabus quickly before an exams or interview for jobs. Track your learning, set reminders, edit the study material, add favorite topics, share the topics on social media. Use this useful engineering app as your tutorial, digital book, a reference guide for syllabus, course material, project work, sharing your views on the blog.