Trane SEN0900 Sensor 326010-701 the Armstrong Furnace R05701B004 is

the Armstrong Furnace R05701B004 is a specific spark ignition pilot

This harness is designed specifically for Lennox OEM configurations

and baseboard heating systems using Erie PopTop series actuators (AG and AH models)

' The control will energize the gas valve and spark immediately when 120V is applied to the L1 terminal

Trane SEN0900 Sensor 326010-701 the Armstrong Furnace R05701B004 isThe Trane SEN0900 Sensor is a precision engineered 1 2 inch NPT temperature sensor designed for accurate thermal monitoring in both commercial and residential HVACR applications. As an essential component for system optimization, this sensor monitors liquid or air temperatures within the heat exchanger or piping, providing critical data to the controller for climate control system efficiency. Utilizing a 10k ohm thermistor architecture, the Trane