Can I use this for a 2 PSI system

reducing the risk of delayed ignition or uneven flame patterns

Verify 120V across the terminals using a multimeter

Most run capacitors are non-polarized

Broad Material Compatibility: Specifically designed for 45-degree flare connections on copper

White-Rodgers 3L09-1 Limit Switch Can I use this forThe 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