Gas Heat ESCO Practice Exam 2025 - Free Gas Heat ESCO Practice Questions and Study Guide

Question: 1 / 400

To change the speed of a belt-driven blower, the technician should:

adjust motor and blower wheel pulleys

Adjusting the motor and blower wheel pulleys is the correct approach to changing the speed of a belt-driven blower. By altering the size of the pulleys, you can effectively change the ratio of the motor speed to the blower speed. This adjustment allows you to increase or decrease the airflow as necessary for optimal heating or cooling performance.

Other options, such as changing the blower motor, may be necessary in certain scenarios, but they do not directly address the adjustment of blower speed through existing components. Similarly, increasing the size of the furnace is unrelated to the function of the blower speed, as it pertains to the capacity of the heating system rather than the airflow dynamics. Replacing the thermostat might impact the system’s operation but does not directly influence the blower's speed or airflow.

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change the blower motor

increase the size of the furnace

replace the thermostat

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