# APSM 159A: INTRODUCTION TO TESTING ADJUSTING & BALANCING HVAC SYSTEMS

## Foothill College Course Outline of Record

Heading | Value |
---|---|

Effective Term: |
Summer 2022 |

Units: |
2.5 |

Hours: |
30 lecture, 10 laboratory per quarter (40 total per quarter) |

Prerequisite: |
Per California Code of Regulations, this course is limited to students admitted to the Sheet Metal Apprenticeship Program. |

Degree & Credit Status: |
Degree-Applicable Credit Course |

Foothill GE: |
Non-GE |

Transferable: |
None |

Grade Type: |
Letter Grade (Request for Pass/No Pass) |

Repeatability: |
Not Repeatable |

## Student Learning Outcomes

- A successful student will be able to describe common air flow measurements.
- A successful student will be able to calculate airflow volume, velocity, velocity pressure or area when other factors are provided.

## Description

## Course Objectives

The student will be able to:

- Describe the flow of heat in objects
- Describe common airflow measurements
- Describe the pressures measured in airflow
- Identify airflow formulas
- Calculate airflow volume, velocity, velocity pressure and area
- Describe standard air and correction tables for non-standard air
- Describe temperature scales
- Describe heat and heat transfer terminology

## Course Content

- Describe the flow of heat in objects (Lec and Lab)
- Describe common airflow measurements
- Describe CFM, FPM and area used in air balance formulas (Lec and Lab)

- Describe the pressures measured in airflow
- Describe total, static and velocity pressure (Lec and Lab)
- Perform airflow calculations for volume, flow rate and pressure (Lec and Lab)

- Identify airflow formulas
- Discuss air density and properties of moist air (Lec and Lab)

- Calculate airflow volume, velocity, velocity pressure and area
- Calculate correct flow rates for non-standard air (Lec and Lab)

- Describe standard air and correction tables for non-standard air
- Define value for standard air (Lec and Lab)
- Describe weight and volume of standard air (Lec and Lab)
- Calculate corrections to standard air for temperature and elevation (Lec and Lab)

- Describe temperature scales
- Define Fahrenheit, Celsius, Kelvin and Rankine temperature scales (Lec and Lab)
- Convert temperatures from different scales (Lec and Lab)

- Describe heat and heat transfer terminology
- Define the terms BTU, BTUH, MBH and [delta]T (Lec and Lab)
- Define and perform calculations using heat transfer formulas (Lec and Lab)
- Explain total, sensible and latent heat (Lec and Lab)
- Calculate percentage of outside air (Lec and Lab)
- Describe functions of coils in heat transfer (Lec and Lab)

## Lab Content

- Observe lab demonstrations of airflow characteristics and heat transfer
- Demonstrate proper set up of an air data meter and pitot tube

## Special Facilities and/or Equipment

2. Sheet metal test and balance tools and sample system components

3. Personal protective equipment

4. When taught via Foothill Global Access, on-going access to computer with email software and hardware; email address

## Method(s) of Evaluation

Demonstrated mastery of course topics as measured by the results of written quizzes, tests, and lab practical

Class participation

Comprehensive written final examination

Comprehensive final project

## Method(s) of Instruction

Lecture

Discussion

Demonstration

Lab assignments followed by discussion

## Representative Text(s) and Other Materials

International Training Institute for the Sheet Metal and Air Conditioning Industry. __Testing, Adjusting & Balancing of Environment Systems__. 2003.

This is the standard sheet metal textbook/workbook used for this course. Although it may not be within five years of the required published date, it is the most current book used when teaching this course.

## Types and/or Examples of Required Reading, Writing, and Outside of Class Assignments

- Sample reading assignment: From the textbook, Unit 4, "Airflow"
- Sample writing assignment: Write formulas for the following airflow variables: CFM, total pressure, static pressure, velocity pressure