Air Conditioning and Refrigeration Repair

Introduction<br/>1 Basic Electricity for Refrigeration<br/>Electricity<br/>Ohm’s Law<br/>2 Test Meters<br/>Checking Ac Voltage<br/>Checking Resistance with the Ohmmeter<br/>Checking Current with Clamp-On Ammeter<br/>Checking Current with In-Line Dc Ammeter<br/>Units and Prefixes for Electrical Measurement<br/>Evaluation of Electrical Components<br/>3 Compressors<br/>Hermetic Compressor<br/>Semi-Hermetic Compressor<br/>Electrical Connecting Terminals<br/>Compressor Testing<br/>Refrigeration Valves (Compressor Reed Valves)<br/>4 Capacitors and Fuses<br/>Types of Motor Capacitors<br/>Checking a Capacitor<br/>Holding-A-Charge Test<br/>Fuses<br/>Testing Fuses<br/>5 Relays and Contactors<br/>Current Relay<br/>Potential Relay<br/>Hot-Wire Relay<br/>Bimetal Contacts<br/>Relays and Contactors<br/>6 Transformers<br/>Wattage Rating<br/>Distance Between Transformer and Control<br/>Step-up Transformers<br/>Testing Transformers<br/>7 Circuit Breakers<br/>Non-Trip<br/>Quick-Trip<br/>Time-Delay Breaker (Slow Trip)<br/>Testing<br/>8 Motor Starters<br/>Auxiliary Switches<br/>9 Safety Controls<br/>Electrical Safety Controls<br/>Mechanical Protection Controls<br/>10 Evaporator Section<br/>Heat Strips<br/>(Air Handler)<br/>11 Thermostats<br/>Wiring<br/>Sub-Base Terminal Identification<br/>Differential<br/>Leveling Sub-Base for Mercury Switch Thermostats<br/>Pneumatic<br/>Accustats<br/>12 Optional Components in Condensing Unit<br/>Crankcase Heater<br/>Receiver<br/>Accumulator<br/>Hot Gas Mufflers<br/>Driers-Dehydrators<br/>Replaceable-Core, Shell-Type Filter Drier<br/>Strainers<br/>Sight Glasses<br/>Solenoid Valves<br/>13 Wiring Schematics<br/>14 Properties of Refrigerants<br/>Refrigerants<br/>Color Coding<br/>Temperatures<br/>15 Basic Mechanical Refrigeration System<br/>Compressor<br/>Condenser (Air-Cooled)<br/>Condenser (Water-Cooled)<br/>Water Source<br/>Evaporator-DX<br/>Metering Devices<br/>16 Humidity Control<br/>17 Basic Air Conditioning Operation<br/>18 Optional Controls<br/>Fire Stat<br/>Smoke Detector<br/>Sail Switch or Pressure Switch<br/>Oil Pressure Failure Control.<br/>Solenoid Valve<br/>19 Piping<br/>Copper<br/>PVC<br/>Galvanized<br/>20 Soldering<br/>50-50 Solder<br/>95-5 Solder<br/>Stay Brite<br/>Sil-Fos<br/>Silver Solder<br/>21 Flare and Compression Fittings<br/>22 Filter Driers and Air Filtration<br/>Air Filtration<br/>23 Fan Systems<br/>Rules for Propeller Fan Rotation<br/>Increasing Cfm by Increasing Motor Speed<br/>Throttling Fans<br/>Throttling Water Pumps<br/>Fan Vibration<br/>Direction of Discharge Air and Fan Rotation<br/>24 Pulleys and Belts<br/>Belt Replacement<br/>Fan Speeds<br/>Sheave Alignment<br/>25 Leak Testing<br/>Condensing Unit<br/>Evaporator Unit<br/>Isolation Test<br/>Vacuum Pump<br/>26 Charging the System<br/>Air Conditioning Charging Tables<br/>Service Manifold and Gauges<br/>Sight Glasses<br/>Charging Cylinder<br/>Service Valves<br/>27 Field Repairs of Semi-Hermetic Compressors<br/>28 Heat Pumps<br/>29 Window Units<br/>30 Preventive Maintenance<br/>Condensing Unit<br/>Compressor<br/>Evaporator<br/>Thermostat<br/>31 Troubleshooting<br/>Condensing Unit and Evaporator Not Operating<br/>Evaporator Section Blowing Warm Air<br/>Condenser Unit and Evaporator Section Operating<br/>Not Cooling Enough, Ice on Suction Line<br/>Condensing Unit Operating, Evaporation Operating, Insufficient Cooling<br/>Blown Fuse or Tripped Circuit Breaker<br/>Unit Stops Operation, Operating When Technician Arrives<br/>Cleanup of Compressor Burn-Out.<br/>Noise Complaint<br/>Odors<br/>32 Automotive Air Conditioning<br/>33 Heat Reclaim<br/>34 Refrigeration<br/>Remote Systems<br/>Reach-In Coolers<br/>Domestic Refrigerator<br/>35 Tools<br/>Multimeter<br/>Clamp-On Ammeter<br/>Manifold and Gauges<br/>Oxygen-Acetylene Soldering Outfit<br/>Leak Detector<br/>Electric Drill<br/>Electric Screwdriver<br/>Soldering (Iron-Gun)<br/>Adjustable Wrenches<br/>Nut Drivers<br/>Standard Screwdrivers<br/>Phillips Screwdrivers<br/>Allen Wrenches<br/>Thermometers<br/>Pliers<br/>Hammer<br/>Socket Wrenches<br/>Tubing Cutters<br/>Flaring Tool<br/>Swaging Tool<br/>Inspection Mirror<br/>Service-Valve Wrench<br/>Crimping Tool<br/>36 Geothermodynamics<br/>37 Solar Energy<br/>Collector<br/>Circulating Pump<br/>Hot Water Sensing Thermostat<br/>Thermo-Bank<br/>Hot Air Solar Collectors<br/>Index