Title: Unit 9 Outline
Course: HET 273 - Pneumatic, Electric and DDC Automation - Spring 2015 > Section: HET 273 - Pneumatic, Electric and DDC Automation - Spring 2015

Unit 9 Outline

Unit 9 Outline
Unit 9 Outline

Objectives

This week’s assignments will support the HVAC Learner to:

- Understand pneumatic control diagnosis
- Control drawings
- Sequence of operations
- Interface diagrams
- Control applications

Introduction

The HVAC/R technician must understand not only what each component does, but must understand pneumatic, electrical, and system drawings. He or she must understand sequences of operations from each part or component of the system to the system as a whole. He or she will use this knowledge to diagnose and troubleshoot any system problems or just check proper system operation.

Vocabulary

1. Sequence Chart
2. Control Drawing
3. Sequence of Operation
4. Diagram
5. Schematic

This Week’s Objectives

Diagrams
- Types of diagrams

- Understanding diagrams

- Control drawings

- Interface diagrams

Control sequence
- Sequence of operations
- Understand sequence of operations
- Equipment operation control applications

Summary

- All systems have a specific sequence of operation
- In order to understand how the system works, the HVAC/R technician must be able to read and interpret diagrams, schematics, and drawings
- The HVAC/R technician must have a basic knowledge of how different systems