is designed with a black jacket and red stripe to ensure rapid pneumatic circuit identification during multi-line installations

ensuring the millivolt signal is strong enough to keep the standing pilot ignition system safety valve held open without nuisance shutoffs

OEM Compatibility: Designed for seamless integration with Lennox AF90 series furnaces

the internal bimetal disc is likely fatigued or damaged

System Sensor B114LP Detector Els PW 17895 is designed with a blackSystem Sensor B114LP Gas Smoke Detection, 120Vac Nominal Voltage, 4 Wire, Ceiling Mounted, Smoke Detector Adapter Base with SPST NO and SPDT relay contacts and a 470 ohm current limiting resistor for 2151 Special Applications Duct Smoke Detector