or structurally compromised

and circulator fans in residential furnaces

Durable Construction: Built to be virtually maintenance-free

and delayed ignition or flame rollout during the start-up sequence

Patterson-Kelley 10-0370-0713 Relay 320788-704 or structurally compromisedThe Patterson Kelley 10 0370 0713 Time Delay Relay is a critical control component designed for high efficiency boiler systems and water heaters. Engineered for 120V AC applications, this relay provides precise timing intervals to manage sequence of operations, preventing short cycling and ensuring proper post purge or pre purge cycles in the combustion chamber. As a direct OEM replacement part, it maintains the integrity of the original control