What is the best way to install and maintain a drip pan for an AC unit in the attic to prevent water damage and leaks?

The best way to install and maintain a drip pan for an AC unit in the attic is to ensure it is securely mounted underneath the unit to catch any water leaks. Regularly inspect and clean the drip pan to prevent clogs and overflow. Additionally, consider installing a float switch that can automatically shut off the AC unit if the water level in the drip pan gets too high.