Trane RLY3874 Relay 320735-701 The Lennox 13U29 is strictly

The Lennox 13U29 is strictly a 230V inducer assembly

visible rust or cracks on the manifold body

By consolidating multiple legacy footprints into one universal gas ignition control

this hardware ensures smooth torque transmission and eliminates mechanical binding in HVAC actuator linkages

Trane RLY3874 Relay 320735-701 The Lennox 13U29 is strictlyThe Trane RLY3874 is a specialized . 1s 100hr Time Delay Relay engineered for precision timing in commercial HVACR and industrial automation systems. This 8 pin, SPDT NO NC relay provides versatile delay on energization functionality, allowing technicians to dial in precise operational windows ranging from a fraction of a second up to 100 hours. This adaptability makes the RLY3874 a critical component for managing staged compressor starts, fan motor