Reznor 196949 Flame Rollout Limit Switch 225F Manual Reset

The Reznor 196949 is a manual reset flame rollout limit switch designed for safe operation of Reznor unit heaters. This OEM safety component features a 225°F temperature rating and serves as a critical safety device that prevents dangerous flame rollout conditions in heating equipment.

Key Features:

• Manual reset operation with center-mounted reset button
• 225°F high temperature limit rating
• Flame rollout detection and protection
• OEM Reznor replacement part ensuring proper fit and function
• Designed for Reznor UDAP and UDAS series unit heaters (models 45, 60, and 75)

This limit switch functions as a safety thermostat that trips when excessive temperatures indicate a flame rollout condition. Once tripped, the switch must be manually reset by pressing the center button, ensuring the heating system issue is addressed before operation resumes. The manual reset design prevents automatic restart and ensures technician inspection of the equipment.