Armstrong 40L81 Furnace Flame Sensor KitArmstrong 40L81 Furnace Flame Sensor Kit provides reliable ignition safety and precise flame sensing for compatible Armstrong furnaces, helping maintain efficient combustion and reducing nuisance shutdowns. This furnace flame sensor kit is designed for G23 G26 G32 90UGF models, delivering a durable, accurate sensing solution with straightforward installation and easy routine maintenance. Engineered with the PSE L47 Precision Speed Equipment Flame

making it ideal for homes with children or workspace devices

making it a dependable choice for standard furnace installations

field-replaceable unit fits a range of Armstrong furnace configurations and is a practical choice for service technicians seeking reliable HVAC safety components

The RIB2402D Enclosed Pilot Control Relay is a compact

making it suitable for hot/cold and glycol water mains and process lines

Voltage: 120 VAC

Designed for Armstrong HVAC systems and compatible gas furnace ignition setups

Designed as a straightforward replacement part

OEM-compatible replacement part for Armstrong 99K57

Ports: 1" threaded x 1" threaded

dependable service

Standard wiring and sensor compatibility for straightforward installation