Title: Unit 5 Outline
Course: HET 273 - Pneumatic, Electric and DDC Automation - Spring 2015 > Section: HET 273 - Pneumatic, Electric and DDC Automation - Spring 2015

Unit 5 Outline

Unit 5 Outline
Unit 5 Outline

Objectives

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

- Describe air compressor station components
- Understand air compressor particulate removal
- Understand air compressor moisture removal
- Understand compressed air oil removal
- Describe compressor pressure and volume control
- Describe system air lines
- Explain system operations
- Describe preventative maintenance

Introduction

The air compressor station is the heart of the building pneumatic system. The station proves clean, dry, oil free air at the correct pressure and volume to the pneumatic control systems. The HVAC/R technician must know the components and sequence of operating the station and all related auxiliary equipment. The technician must make sure that the compressed air is moisture and oil free. This prevents damage to the systems operating components.

Vocabulary

- Oil Carry Over
- Desiccant
- Pressure Switch
- Pressure Regulator
- Safety Relief Valve
- Poly
- Lead/Lag
- Alternators

This Week’s Learning Objectives

- Station
  1. Air station components
  2. Air station controls
  3. Filtration
  4. Moisture removal
  5. System sequence of operation

- System Piping
  1. Type of pipe
  2. Sizes of pipe
- Maintenance
  1. Change oil
  2. Filter replacement
  3. Describe preventative maintenance program

Summary

- The HVAC/R technician must understand the operation of each system component as well as the sequence of operation
- The technician must maintain the system at the correct pressure and volume
- The technician must make sure that system is kept moisture and oil free
- The technician must maintain an ongoing preventative maintenance program