This book explains with illustrations, examples, charts, and diagrams how to size wire, overcurrent protection, grounding application, and conduit. It gives vital information required to install, service, and troubleshoot the electrical portion of an HVAC system within the National Electrical Code, NFPA 70 requirements. With this book you will be well informed in how to pass the electrical portion of an HVAC examination and apply NFPA 70 requirements.