ensuring a gas-tight seal without the need for excessive torque

ensure evaporator coils are not impacted

this OEM part is engineered to detect abnormal high-temperature conditions—specifically flame rollout—and immediately break the electrical circuit to shut down the gas valve

If your application requires a lower or higher setpoint

Common Questions What causes a 1171324 limit switch to trip repeatedly

Copeland Comfort Control (White Rodgers) 3L09-20 Limit Switch ensuring a gas-tight seal withoutThe White Rodgers 3L09 20 Limit Switch is a professional grade 1 2" bimetal disc limit control designed for high limit temperature protection in forced air heating systems. This board mounted limit switch features a 7. 12" insertion length, ensuring the sensing element is positioned deep within the air stream for rapid thermal response and precise high speed contact separation. Operating as a normally closed SPST switch, the 3L09 20 is engineered with