Verify 120V across the terminals using a multimeter

The TF5 electrical rating signifies that this unit requires a 200/230V

Durable brass construction resists corrosion and maintains port integrity over time

reducing the risk of delayed ignition or uneven flame patterns

Most run capacitors are non-polarized

White-Rodgers 3L09-1 Limit Switch Verify 120V across the terminalsThe White Rodgers 3L09 1 Limit Switch is a high performance 1 2" bimetal disc limit control designed for precise thermal regulation in HVAC furnaces and commercial heating equipment. Engineered for board mounted configurations, this snap disc thermostat operates with an open on rise switch action, effectively breaking the circuit at a fixed open temperature of 140F. As a critical safety component, it prevents heat exchanger overheating by monitoring