HVA 221 - Duct Construction and Design

Description
Students study and practice the design and fabrication of air distribution systems and their components. This includes learning register location, designing duct systems, and sizing ducts for correct airflow. In the lab students practice fabricating an assortment of standard fittings used in air distribution systems.

Credit Hours: 3
Contact Hours: 5
Prerequisites/Other Requirements: None
English Prerequisite(s): None
Math Prerequisite(s): None
Course Corequisite(s): None
Academic Program Prerequisite: None
Consent to Enroll in Course: No Department Consent Required
Dual Enrollment Allowed?: No
Number of Times Course can be taken for credit: 1
Programs Where This Course is a Requirement:
Heating, Ventilation, and Air Conditioning/Refrigeration Technology, A.A.A.S., Heating, Ventilation, and Air Conditioning/Refrigeration Technology Certificate

47.9999

General Education Requirement:
None
General Education Learner Outcomes (GELO):
NA
Course Learning Outcomes:

Identify various sheet metal fittings and determine correct specifications for different sheet metal seams used in the fabrication of air duct fittings.
Compare and contrast optimal register location for supply and return air openings of a heating, cooling or combination heat/cool systems.
Complete work accurately, with attention to detail.
Work well in teams and with others.
Understand air flow requirements of heat only, cool only, heat/cool and heat pump systems and lay out a duct distribution system based on calculated CFM requirements in every section of duct.
Layout and fabricate square and round duct fittings to the given dimensions.
Measure and adjust the airflow through an air delivery system to get the required CFM.

Course Outline:
I.    Introduction

   A.    Air Distribution Systems

   B.    Names and Terms

   C.    Air Flow Characteristics

II.    Registers

   A.    Selection

   B.    Location

   C.    Sizing

III.    Duct System Design

   A.    CFM Requirements for Basic System Types

   B.    Duct Clearance Requirements

IV.    Duct Fitting Fabrication

   A.    Seams and Joints

   B.    Duct and Fitting Layout

   C.    Cutting, Forming, and Fabrication

   D.    Layout Aids

   E.    Computerized Layout

   F.    Duct System Installation

Approved for Online and Hybrid Delivery?:
Yes
Instructional Strategies:
Lecture: 40-60%

Lab: 40-60%
Mandatory Course Components:
None
Equivalent Courses:
None

Accepted GRCC Advanced Placement (AP) Exam Credit: None
AP Min. Score: NA
Name of Industry Recognize Credentials: NA

Course prepares students to seek the following external certification:
No
Course-Specific Placement Test: None
Mandatory Department Assessment Measures:
None

Course Type:
Program Requirement- Offering designed to meet the learning needs of students in a specific GRCC program.
Course Format:
Lecture/Lab - Must meet Lecture & Lab Ratios
Total Lecture/Lab Hours Per Week: 5
People Soft Course ID Number: 101486
Course CIP Code: 47.9999
Maximum Course Enrollment: 12
High School Articulation Agreements exist?: No
Non-Credit GRCC Articulation Agreement With What Area: No
Identify the Non Credit Programs this Course is Accepted: NA

School: School of Business & Industry
Department: Applied Technology
Discipline: HVA
Faculty Credential Requirements:
Certification/License Requirement (list below), Master’s Degree (GRCC general requirement), Professionally qualified through work experience in field (Perkins Act or Other) (list below)
Faculty Credential Requirement Details:
The instructor must have at least 2 years of installation and service work experience in the HVAC field and should be certified in at least 1 of the following; all 3 categories of ICE (Industry Competency Exams), any 2 categories of NATE (North American Technician Excellence), or the RSES (Refrigeration Service Engineers Society) CM exam (Certificate Member), to effectively teach this course.

Last Revision Date Effective: 2017-04-12 12:22:53
Course Review & Revision Year: 2025-2026