What is the minimum distance of a ventilation air intake from a lot line?

The minimum distance for a ventilation air intake from a lot line is established to ensure safety, air quality, and to prevent the intake of contaminants from adjacent properties. A distance of 10 feet is specified because this spacing helps to minimize the risk of odors, exhaust gas, and other pollutants from neighboring buildings or activities affecting the airflow into a mechanical system. It also allows for proper maintenance access and reduces the chance of interference from nearby structures or landscaping. This distance is particularly important in urban areas where lot lines are often close together, ensuring the intake remains effective and the indoor air quality stable. Thus, knowing the correct minimum distance is crucial for compliance with the North Carolina Mechanical Code and for the proper functioning of ventilation systems.