Gas Heat ESCO Practice Exam

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Study for the Gas Heat ESCO Exam. Dive into flashcards and multiple-choice questions with hints and explanations. Get ready for your exam journey!

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A gas furnace has an electronic control board. How is the fan cycled during heating?

based on a pressure switch
time
temperature
voltage

The correct answer is: time

The fan is typically cycled by a time function. This is because the fan needs time to blow warm air through the ducts and into the living space. Options A, C, and D are all incorrect because they do not accurately describe how the fan is cycled during heating. A pressure switch is used to monitor air pressure, temperature typically controls the thermostat, and voltage measures the electrical potential difference.