What positioning is required for the thermal cutoff switch relative to the unit?

The thermal cutoff switch is designed to provide a safety mechanism that prevents overheating by disconnecting power if the temperature exceeds a certain threshold. Positioning the thermal cutoff switch at the highest point directly above the unit ensures that it can effectively monitor heat rising from the appliance. Heat naturally rises, so placing the switch at a higher point allows it to detect temperature changes more accurately, ensuring timely intervention before any overheating issues can escalate.

This positioning also reduces the risk of the switch being obstructed by other components or surfaces, which could hinder its performance. Overall, installing the cutoff switch in this manner helps to uphold safety standards and is in line with best practices outlined in the Maine Fuel Code.