Which of the following could be a potential issue if door swing clearance is not maintained?

If door swing clearance is not maintained, a potential issue is the risk of blockage of the vent terminal. Proper clearance is essential for ensuring that appliances, especially those that rely on venting, operate safely and efficiently. If a door swings into the path of a vent terminal, it could obstruct airflow or create a situation where toxic gases are not properly vented outside. This could lead to dangerous conditions, such as the accumulation of carbon monoxide or other harmful gases within a home or building.

Maintaining adequate door swing clearance is crucial not just for the functionality and accessibility of appliances, but also for compliance with safety standards that help prevent hazardous situations. Properly designed spaces that allow for unobstructed venting contribute significantly to the overall safety of HVAC installations and ensure that appliances function as intended without the risk of vent blockage.