What is the size of the outside air damper for Air Handler 3?

The correct size of the outside air damper for Air Handler 3 is 126" x 36". This measurement typically corresponds to the specific requirements based on airflow calculations, system design, and the dimensions specified in the project's mechanical drawings. The size of the air damper is critical for ensuring adequate ventilation and air quality within the space serviced by the air handler.

When determining the appropriate size, factors such as the air handler's capacity, the intended application, and the overall design specifications play a significant role. A properly sized damper allows for optimal performance while preventing issues that could arise from either over-ventilation or inadequate airflow. Therefore, using the correct size ensures that the air delivery system works effectively, maintains energy efficiency, and meets building code requirements.

In this case, the choice of 126" x 36" aligns with the necessary specifications for proper operation of Air Handler 3 based on the parameters outlined in the project documentation, accommodating the required airflow and ensuring effective integration with the rest of the HVAC system.