The function of the blower motor in an HVAC system is to:

The function of the blower motor in an HVAC system is to:

• A. Filter incoming air
• B. Move air through ducts
• C. Cool the refrigerant
• D. Measure room temperature

Answer: (B)

The blower motor is responsible for moving air through the system’s ducts. It powers the blower wheel in the air handler or furnace, pulling return air into the unit, sending it across the evaporator coil (for cooling) or through the heat exchanger (for heating), and then pushing the conditioned air out through the supply ducts to the rooms. Without this airflow, heat transfer with the refrigerant and distribution throughout the living space wouldn’t happen effectively. Filtration is done by the filter screen catching debris, not by the motor itself. Cooling the refrigerant happens in the refrigeration cycle (compressor, condenser, evaporator), not by the blower motor. Measuring room temperature is done by the thermostat and sensors, not by the motor.

The blower motor is responsible for moving air through the system’s ducts. It powers the blower wheel in the air handler or furnace, pulling return air into the unit, sending it across the evaporator coil (for cooling) or through the heat exchanger (for heating), and then pushing the conditioned air out through the supply ducts to the rooms. Without this airflow, heat transfer with the refrigerant and distribution throughout the living space wouldn’t happen effectively.

Filtration is done by the filter screen catching debris, not by the motor itself. Cooling the refrigerant happens in the refrigeration cycle (compressor, condenser, evaporator), not by the blower motor. Measuring room temperature is done by the thermostat and sensors, not by the motor.