Course: HET 130 Heating Residential Appliances

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Lab Assignment

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Week 11 Lab Assignment: Electric Heating Systems

Recommended Materials

1. PPE
2. Hand Tools
3. Notepad
4. Pencil
5. Electric Furnace
6. VOM
7. Clamp-on ammeter

Scope

The student will discover how electric furnaces operate by testing the system while operating an electric heating bank heater and identifying the components of the system.

Procedures

1. Locate an electric furnace.
2. Turn the power source off.
3. Remove the door panels.
4. On a notepad, write down the components used on the heating system.
5. Draw a diagram of the location of the components.
6. To check the operation of the electric furnace, the door panel to the controls must be left off.
7. With a clamp-on ammeter, go around one of the power leads.  Use Caution, HIGH VOLTAGE.
8. Turn the power source on and set the thermostat above the room temperature.
9. Record the amperage as the sequencer cycle the elements on.
10. Turn the thermostat below the room ambient and record the amperage as the heating elements cycle off.

Research Questions

1. What components are different from the fossil fuel furnaces?
2. What components are similar to the fossil fuel furnaces?
3. What were the amperage readings from the elements?
4. What happen when the thermostat was de-energized?

Click on the file below to download the Lab Assignment
- HET 130 Wk 11 Lab.docx (15.5 KB)