Lesson Plan Course Title: Construction Technology Session Title: The Basics of HVAC Time: Two days [Lesson length is subjective and will vary from instructor to instructor] Performance Objective: Demonstrate the basic knowledge HVAC systems for the home. Specific Objectives: Upon completion of this lesson, the learner will be able to: Describe the various components of the typical HVAC system. Develop specific "right & wrong" solutions for use. Define various HVAC terms. Preparation TEKS Correlations: This lesson, as published, correlates to the following TEKS. Any changes/alterations to the activities may result in the elimination of any or all of the TEKS listed. 130.55. Advanced Building Maintenance Technology (7) Students will demonstrate knowledge of installing and maintaining electrical devices and knows wiring techniques common to commercial and industrial facilities, also: (a) describe how to determine electrical service requirements for commercial and industrial facilities; (b) select the proper wiring methods for various commercial and industrial facilities; (c) explain the role of the National Electrical Code; (d) compute branch circuit loads and explain their installation requirements; (e) explain the types and purposes of equipment grounding conductors; (f) size and select outlet boxes for various wiring methods; (g) describe the rules for installing electric space heating and HVAC systems equipment; and (h) describe the installation rules for electrical systems around swimming pools, spas, and hot tubs. (8) Students will demonstrate knowledge of basic principles of HVAC systems and: (a) explain the principles of HVAC; (b) describe what the Clean Air Act means to the HVAC systems industry; and Copyright © Texas Education Agency, 2011. All rights reserved. 1 (c) identify the types of schedules and drawings used in HVAC systems and refrigeration industries. This lesson, as published, correlates to the following TEKS. Any changes/alterations to the activities may result in the elimination of any or all of the TEKS listed. 125.22 xx - Heating, Ventilation, Air-Conditioning, and Refrigeration 125.22(c)(4)(C) demonstrate knowledge of new and emerging technologies that may affect the installation and service of air-conditioning, refrigeration, ventilation, and heating systems. 125.75 xx - Power Technology 125.75(c)(1)(D) apply the competencies related to resources, information, systems, and technology in appropriate settings and situations; 125.75(a)(3)(C) demonstrate knowledge of the function of power generating equipment, systems, and components. Interdisciplinary Correlations: This lesson, as published, correlates to the following TEKS. Any changes/alterations to the activities may result in the elimination of any or all of the TEKS listed. 125.22 xx - Heating, Ventilation, Air-Conditioning, and Refrigeration 125.22(c)(4)(C) demonstrate knowledge of new and emerging technologies that may affect the installation and service of air-conditioning, refrigeration, ventilation, and heating systems. 125.75 xx - Power Technology 125.75(c)(1)(D) apply the competencies related to resources, information, systems, and technology in appropriate settings and situations; 125.75(a)(3)(C) demonstrate knowledge of the function of power generating equipment, systems, and components. 110.xx(6) - Reading/vocabulary development 110.xx(6)(A) ...expand vocabulary through wide reading, listening, and discussing... Copyright © Texas Education Agency, 2011. All rights reserved. 2 Instructor/Trainer References: There are numerous websites and publications for information. Personal experiences in designing residential solutions . Guest speakers from local HVAC companies . Instructional Aids: Basic HVAC Systems (for the home) PowerPoint Presentation. Basic HVAC Systems (for the home) PowerPoint Slides. Basic HVAC Systems (for the home) PowerPoint Notes. Basic HVAC Systems (for the home) PowerPoint Handouts. Basic HVAC Systems Presentation Rubric. Materials Needed: Pencils Ink Pens Notebook/drafting Paper Research Information Equipment Needed: Computer & Multi-media Projector Internet Access Printer Learner Knowledge of how to conduct an Internet search. Pen/pencil and paper. Ability to work well in a group assignment, communicate orally and in writing, demonstrate . knowledge of design, read and comprehend all related drafting tools . Introduction Introduction (LSI Quadrant I): Your Heating, Ventilation, Air-Conditioning unit can not just make your house easier to live in, it can save you, or cost you, thousands of dollars. (Select an example of loss of heat or air and how it can be fixed to save money). Copyright © Texas Education Agency, 2011. All rights reserved. 3 Outline Outline (LSI Quadrant II): I. Instructor Notes: List objectives on the board II. Introduction i. Define HVAC terms ii. Discuss HVAC systems iii. Ask students what type of systems they have. Show students pictures of various houses and compare them. Which house do they feel is most efficient? III. Show PowerPoint Explain why. IV. Guided practice: Students research residential HVAC systems Students gather information of related facts: IE: Problem solving techniques, application of materials, climate influences, systems, etc. Students present, in a group, their findings. V. Review . VI. Informal Assessment VII. Formal Assessment VIII. Enrichment Application Guided Practice (LSI Quadrant III): The instructor assists students whenever needed, but allows for individual expression. Students assist each other as well. Team Planning . Information gathering from internet and guest speakers. Development of scenarios by students. Freedom of students to apply their own solutions . Independent Practice (LSI Quadrant III): Students perform the following independently. Detailed presentation of step by step approach to developing energy conservation solutions . Drawings of scenarios presented on whiteboard. Selection of various information to be presented to class. Utilization of Presentation media: Multi-media projector, computer, whiteboard, handouts. Creation of presentation materials. Copyright © Texas Education Agency, 2011. All rights reserved. 4 Instructor guided scenarios with direct group and individual critique. Instructor check of proper use of grammar, spelling, and projection. Controlled techniques and focus during scenarios. Professionalism in scenario creation and presentation. Summary Review (LSI Quadrants I and IV): Instructor presentation of basic HVAC systems. Students review and complete research. Evaluation Informal Assessment (LSI Quadrant III): Individual and Team selection of problem scenarios. Variability of presentations. Direction and input from instructor during learning process and scenario presentations as needed. Correction given. Formal Assessment (LSI Quadrant III, IV): Individual and Team performance in final presentations Group and individual assessment of final presentations . Extension/Enrichment (LSI Quadrant IV): Regardless of what they do or where they go, most students will have a HVAC system and knowledge of these systems will help these students in the future. Copyright © Texas Education Agency, 2011. All rights reserved. 5 Quiz Name:____________________________________ 1. HVAC Stands for ____________________________________________________________________ ____________________________________________________________________ 2. Which of the following is not part of MOST HVAC systems? a. The generator b. The heater c. The ventilation d. The air conditioning system 3. What is LOAD? ______________________________________________________________________ ______________________________________________________________________ 4. Which of the following is not a major manufacturer of HVAC units? a. Ruud b. Honeywell c. Disney d. Carrier 5. The HVAC and furnace use the same ventilation system. a. True b. False Copyright © Texas Education Agency, 2011. All rights reserved. 6