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