Which type of drain should be connected to the drain pan provided with equipment?

The correct choice is the overflow drain. An overflow drain is specifically designed to prevent excess water from spilling over from its intended containment area. In the context of equipment, the drain pan serves the purpose of capturing any condensation or leakage. Should the primary drainage system fail or become clogged, the overflow drain will ensure that any additional water is adequately directed away, preventing potential water damage to surrounding areas and equipment.

This configuration is essential for maintaining the functionality and safety of the system, ensuring that any excess moisture does not cause issues such as corrosion, mold growth, or flooding in the vicinity of the equipment. Thus, the overflow drain is a critical component in the management of excess water, ensuring that operational integrity is upheld.