Course: HET 119 HVACR Electricity II

Lab Assignment

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Week 4 Lab Assignment: Symbols in the HVAC Industry

Recommended Materials
1. Lab Sheet
2. Pencil
3. HVAC Textbook
4. Internet Search

Scope

This lab will help the student to learn how to interpret electrical symbols used in the HVAC/R field.

Procedures

1. Use a textbook and the internet to search for electrical symbols use in the HVAC/R field.
2. The symbols you need to locate and draw are:
  1. Thermostat
  2. Pressure Control
  3. Flow Switch
  4. Float Switch
  5. Humidistat
  6. Motor
  7. Two Pole Contactor
  8. Coil
  9. Transformer
  10. Fuse
  11. Service Disconnect
  12. Contact Point
  13. Non-Contact Point
  14. Time Delay Control
  15. Single pole Single Throw Switch
  16. Single Pole Double Throw Switch
  17. Double Pole Single Throw Switch
  18. Double Pole Double Throw Switch

Research Questions

1. What did you learn about the symbols used in the HVAC/R field?
2. What similarities were there in these symbols?
3. What differences were there in these symbols?

Click on the file below to download the Lab Assignment
- HET 119 Wk 4 Lab.docx (14.96 KB)