Heil Limit Switch Manual Reset Boiler Safety Controls & Aquastats

The Heil manual reset limit switch is a high-temperature safety control for heating equipment. It works as an over-temperature cutoff, and it is also sold as a limit control, high limit switch or rollout-style safety switch. When the temperature rises above the switch's rated trip point, the switch opens and shuts the heating cycle down. This helps protect the equipment from overheating.

Key Features:

• Manual reset operation: After a trip, the switch stays open until it is reset by hand. A technician should find and fix the cause of the overheating before restarting the equipment.
• Fixed temperature trip point: The switch gives a definite safety cutoff at its rated temperature. The rating differs by part number.
• OEM-style replacement: The switch is designed as a replacement safety component for Heil and related International Comfort Products (ICP) heating systems.
• Durable construction: The switch is built to handle repeated thermal cycling in heating applications.

Replacing a worn or tripped limit switch helps keep your heating system's safety shutdown working as intended. Check the temperature rating in the individual part listing before you order.