Air Conditioning and Refrigeration Troubleshooting Handbook. In-depth coverage of heating, cooling, and refrigeration units. A series of troubleshooting charts showing every step in the repair process. A quick-access reference section providing repair tips and techniques, along with check-out procedures for all components. Wiring diagrams to illustrate efficient wiring techniques and provide information on start-up and check-out procedures. In-depth coverage of air conditioning and refrigeration units. Many photos, line drawings, and tables to clarify instructions.