Lennox 63W26 Ignition Control 320720-756 it uses thermal targeting to

it uses thermal targeting to provide reset logic based on return temperatures

provided sufficient flame impingement remains

it is engineered to meet specific static pressure requirements

Designed with a pilot operated mechanism

Lennox 63W26 Ignition Control 320720-756 it uses thermal targeting toAs a direct replacement for your high efficiency gas furnace, the Lennox 63W26 Ignition Control (Honeywell S9220E1018 U) provides critical management for 2 stage ignition systems. This PSC integrated furnace control is engineered for residential natural gas or liquid propane applications, ensuring precise timing for the hot surface ignitor (HSI) and flame sensing sequences. High voltage 120V line power and 24V low voltage circuits are managed via a