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Reading Schematic Diagrams

Reading Schematic Diagrams. Electricity for Refrigeration, Heating and Air Conditioning 7th Edition. Chapter 6 Reading Schematic Diagrams. Reading Schematic Diagrams. Upon completion of this chapter the student will be able to:. Read and interpret the schematic a dehumidifier

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Reading Schematic Diagrams

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  1. Reading Schematic Diagrams Electricity for Refrigeration, Heating and Air Conditioning 7th Edition Chapter 6 Reading Schematic Diagrams

  2. Reading Schematic Diagrams Upon completion of this chapter the student will be able to: • Read and interpret the schematic a dehumidifier • Read and interpret the schematic of a window air conditioner • Read and interpret the schematic of a walk-in-cooler • Read and interpret the schematic of a commercial freezer • Read and interpret the schematic of a gas furnace with a standing pilot • Read and interpret the schematic of a small pack­aged residential air conditioner • Read and interpret the schematics commercial air-conditioning systems with control relays

  3. Reading Schematic Diagrams Upon completion of this chapter the student will be able to: • Read and interpret the schematics commercial air-conditioning systems with lockout relays • Read and interpret the schematics of two-stage heating and two-stage cooling systems • Read and interpret the schematics of heat pumps with defrost boards and defrost timers • Read and interpret the schematic of a commercial refrigeration system with pump down • Read and interpret most diagrams found in the refrigeration, heating, and air-conditioning industry

  4. Key Terms • Balance Point • Combustion Chamber • Control Relay • Defrost Cycle • Dehumidifier • Gas Furnace • Heat Pump • Light Commercial Air-Conditioning Systems • Limit Switch • Line Voltage Control Systems • Lockout Relay • Low-Voltage Control System • Multistage Thermostat • Pump-down Control System • Set Point • Short Cycle

  5. Schematic Diagram Design • The schematic diagram resembles a ladder in that it is made up of two vertical lines representing the incoming electrical sources. • The electrical source is electrical energy being supplied to equipment. • The schematic wiring diagram uses symbols to represent electrical components in the system.

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