Title: Unit 5 Outline
Course: HET 119 HVACR Electricity II > Section: HET 119 HVACR Electricity II

Unit 5 Outline

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Unit 5 Outline

- Pictorial Drawings
  - What is a pictorial drawing
  - What is the purpose of a pictorial drawing
- Schematic Drawings
  - What is a schematic drawing
  - What is the purpose of a schematic drawing
- Basic Air Conditioning Drawings
  - Components and symbols used in Air Conditioning systems
- Basic Heating Drawings
  - Components and symbols used in Heating systems
- Basic Refrigeration Drawings
  - Components and symbols used in Refrigeration systems
- Using Drawings to Troubleshoot systems
  - Using both pictorial and schematic drawing to troubleshoot HVAC systems
Summary
  - There are many types of HVAC systems with many ways to control the equipment but understanding how to read electrical diagrams will aid the technician to understand how the equipment operates.
  - Both types of diagrams have a specific purpose.
  - Pictorial drawing will help the HVAC technician to understand where the wires are connected and how to wire a system.
  - Schematics drawing will help the HVAC technician to understand how to troubleshoot a HVAC system by giving a logically representation of the operations of a HVAC system.

Review the vocabulary terms listed below and look up their definitions / descriptions before taking the Vocabulary Quiz.

Vocabulary

Pictorial Drawing

Schematic Drawing

Line Diagram

Motors

Line Voltage

Control Voltage

Contact Point

Safety Controls

Limit Controls