Hvac & R Hands on Troubleshooting

By the time I decided to start writing this book, I had worked in the HVAC & R industry for more than forty-five years. In this span of time, I had worked as a service technician in an NYC service company and as a trade instructor in several schools (see profile).I had written books and works; among them are RAC & E test-books, preparation for the EPAs certification, and the RMO''s License for the...