CHAPTER ONE Basic Principles of refrigeration (pages 7 thru 18) CHAPTER TWO Freon and temperature-pressure relationships (pages 19 thru 34 CHAPTER THREE Charging window units and refrigerators (pages 35 thru 54) * CHAPTER FOUR Servicing commercial equipment (pages 55 thru 73) CHAPTER FIVE Basic principles of electricity (pages 74 thru 90) CHAPTER SIX Electric motors (pages 91 thru 102) * CHAPTER SEVEN Electric trouble shooting of hermetic compressors (pages103 thru 113) CHAPTER EIGHT Motor starting devices (pages 114 thru 128) CHAPTER NINE Trouble shooting window units (pages 129 thru 141) * CHAPTER TEN Household refrigerators and auto a/c (pages 142 thru 154) CHAPTER ELEVEN Central systems (pages 155 thru 165) CHAPTER TWELVE Gas and electric heating (pages 166 thru 208) * CHAPTER THIRTEEN Heat pumps (pages 209 thru 258) CHAPTER FOURTEEN Ice machines (pages 259 thru 301) CHAPTER FIFTEEN Refrigeration recovery and new refrigerants (pages 300 thru 326) TEST QUESTIONS (pages 327 thru 358)