LIEE Curriculum Module Checklist: Attic Ventilation Page 1

Los Angeles Trade-Technical College Division of Workforce and Economic Development

LIEE Curriculum Module Checklist

Curricular Module and Subtopic(s):

Preliminary Skills

Hand and Power Tool Safety and Operation Measurement

Math Calculation for Weatherization and Energy Efficiency Other ______________________________________ (specify)

Basic Weatherization Introduction to Weatherization Energy Basics Building Shell Sealing

Section 1 – Caulking Standards Section 2 – Weatherstripping Standards Section 7 – Cover Plate Gasket Standards Section 12 - Window Replacement Standards Section 13 – Glass Replacement Standards

Conservation Measures and Efficiency

Section 3 – Ceiling Insulation Standards Section 4 – Attic Ventilation Standards Section 5 – Water Heater Insulation Standards Section 6 – Water Heater Pipe Insulation Standards Section 8 – Energy-Saver Shower Head and Faucet Aerator Standards Section 9 – Evaporative Cooler and Air Conditioner Vent Cover Standards

Section 14 – Thread-Based Compact Fluorescent Lamp Standards

Section 15 – Hard-Wired Compact Fluorescent Fixture Standards Section 17 – Refrigerator Replacement Standards

Combustion Basics Section 24 – Natural Gas Appliance Testing (NGAT) Standards

Advanced Concepts and Practices

Door Replacement

Section 11 – Exterior Door Replacement Standards Furnace and Water Heater Installation

Section 23 – Natural Gas Water Heater Replacement Standards Blower Door Duct Testing

Section 10 – Duct Testing Standards

Section 20 – Duct Sealing Standards Furnace Clean and Tune

Section 18 – Natural Gas Central Forced Air Heating System Repair and Replacement Standards

Section 19 – Natural Gas Wall and Floor Furnace Repair and Replacement Standards

LIEE Curriculum Module Checklist: Attic Ventilation Page 2

Curriculum/Instructional Materials Package

Package Component Title of Document(s)

Module/Sub Topic Cover Page Furnace Clean and Tune Student Guide, Filename = 0 Wx clean tune SG title

Furnace Clean and Tune Instructor Guide, Filename = 0 Wx clean tune IG title

Module/Sub Topic Outline

Instructor Outline and Lesson Plan

Instructor Outline and Lesson Plan, Filename = 1 Wx clean tune IG lesson plan

Student Guides, Worksheets, Activities

Furnace Clean and Tune Student Guide, Filename = 1 Wx clean tune SG

Furnace Clean and Tune Activity, Filename = 2 Wx clean tune SG activity

Instructor Tip Sheets

Graphic Organizers

PowerPoint Presentations

Equipment, Tool, Material List

Photo of Teaching Aids, Props

Student Evaluation

Criteria/Materials

Instructional Activity Procedures

Miscellaneous Resource Lists for Faculty

Videos

Furnace Clean and Tune

Instructor

Guide

Weatherization - Advanced Concepts and Practices Furnace Clean and Tune

INSTRUCTOR OUTLINE and LESSON PLAN Furnace Clean and Tune

Materials and Supplies

1. Student Guide 2. Activity Sheet 3. Rubric 4. Working Furnace 5. Tools

CO meter, combustion analyzer, paper clip, shop vacuum, inspection mirror, flash light

Outline and Procedures

TOPIC – Furnace Clean and Tune Introduce Activity Demonstrate Activity Procedures

Demonstrate the activities listed on the activity sheet. Emphasize flame inspection and complete combustion.

Demonstrate Each Step of Inspection o Clean burner area o Check ASO

Define as automatic shut off

o Check pilot light o Check burner operation

Define venturi - the tube where the gas flows through

Explain orifice - small hole where gas goes out of and into venturi

o Check fire box o Check flue and vent o Check thermostat

Evaluate Student Work This is a completion task. All students must complete the task steps. Evaluate them on a scale of 1-4.

Evaluation Furnace Clean and Tune Activity

Learning Outcomes 1. Student measures

ambient CO level 2. Student inspect

furnace flame

Furnace Clean and Tune

Student Guide

Weatherization - Advanced Concepts and Practices Furnace Clean and Tune

[1]

INTRODUCTION

Heating is a main consumer of natural gas. It is important that a furnace operate at its maximum

efficiency. In this activity you will perform a basic clean and tune of a furnace. There are many

different types of furnaces, but they all operate on similar principles. This will give you a basic

understanding of what is involved.

Remove furnace cover. Remove the cover

to gain access to the burners and gas valve.

Weatherization - Advanced Concepts and Practices Furnace Clean and Tune Student Guide

Turn thermostat to off . Turn the furnace

thermostat to the off position.

[2]

Inspect burner area. Look for signs of roll

out, charring, or soot. Look for the obvious

problems like rust, holes, and loose wires.

Clean burner area. Vacuum the burner

area to give you a better view of the furnace.

Continue the inspection after the burner area

has been cleaned.

Clean orifice. Use a paper clip to clean out

any spider webs, dust or other debris in the

area.

[3]

Clean the venture. Use a brush to clean out

the venturi. Vacuum the burner after

brushing.

Caulk window. Caulk all four sides of the

window flange.

Continue inspection. Use an inspection

mirror to check the burners, fire box and other

areas that are out of site.

[4]

Check gas valve. Look for lose wires.

Check for leaks with a soapy solution or a

gas detector.

Check wire connections. Check all wire

connections. Check for lose terminals. If

the wires are connected with screw

terminals, tighten the terminals with a screw

driver.

Check for gas leaks. Start by the smell test.

Use soap solution or a gas detector to check

for gas leaks.

[5]

Check the burner. Turn the furnace on to

get the burners to light. Check the flame. If

it is yellow or flickering, there may be a

problem.

Check pilot light. Check automatic shut off

for the pilot. If the furnace has a pilot light,

blow it out. Clean the tube with a brush.

Check the ASO. Check the automatic shut

off by trying to relight the pilot right after

blowing it out. If the pilot relights, the ASO

is not working and the furnace needs to be

repaired.

[6]

Check for complete combustion. After the

burners have been on for 5 minutes, check

the color again. They should be a steady

blue flame. When starting up a furnace,

sometimes dust will be burned off and make

the flame turn yellow which is why we wait

5 minutes before we determine if there is a

burner problem

Measure CO – Use a carbon monoxide

meter to test the CO level.

Check the flue. Inspect the vent pipes for

signs of rust, holes and unsealed

connections. Perform a draft test and a

combustion test.

[7]

Set thermostat. Turn the furnace back on

by setting the thermostat to the on position.

Name _________________________________

Clean and Tune a Furnace

Inspect the furnace for obvious defects

Inspect pilot light, if necessary

Check for gas leaks

Check ASO for pilot light

Inspect fire box for cracks

Clean furnace box

Clean venturi

Clean orifice

Check flame

Check thermostat operation

Check venting and flue

Check ambient CO levels

Return furnace doors and covers

Instructor’s Signature ___________________________________

Weatherization - Advanced Concepts and Practices Furnace Clean and Tune

Furnace Clean and Tune Activity