Which statement best describes the role of the indoor blower?

Which statement best describes the role of the indoor blower?

• A. Deliver conditioned air to living spaces; ducts must be sized to match the statics pressure capability of the supply blower being used
• B. Filter air before it enters the system
• C. Deliver the necessary airflow through the heat exchanger and evaporator coils while developing an adequate amount of pressure
• D. Be responsible for moving air through a heat exchanger at high speed

Answer: (C)

The indoor blower’s job is to push air through the system, delivering the required airflow across the evaporator coil so heat can be exchanged, while creating enough pressure to overcome duct resistance. This means it must move the correct volume of air (CFM) and develop adequate static pressure to drive that air through the heat exchanger and through the evaporator coils, enabling efficient heat transfer. Filtration happens in the filter path, not in the blower’s primary function. Speed isn’t about simply moving air faster; the blower is set to a level that provides the proper airflow and pressure for the system.

The indoor blower’s job is to push air through the system, delivering the required airflow across the evaporator coil so heat can be exchanged, while creating enough pressure to overcome duct resistance. This means it must move the correct volume of air (CFM) and develop adequate static pressure to drive that air through the heat exchanger and through the evaporator coils, enabling efficient heat transfer. Filtration happens in the filter path, not in the blower’s primary function. Speed isn’t about simply moving air faster; the blower is set to a level that provides the proper airflow and pressure for the system.