System Sensor 2D51 Smoke Detector Els PW 17895 If the furnace ignites but

If the furnace ignites but shuts down after several seconds

the RIBT2401B is rated for 1 HP at 120VAC

Differential expansion

The durable construction is built to withstand the typical environment of an evaporator coil section

System Sensor 2D51 Smoke Detector Els PW 17895 If the furnace ignites butThe System Sensor 2D51 is a low profile plug in photoelectric smoke detector engineered specifically for special application smoke detection within HVAC duct systems. This head is designed for seamless integration with the D4P120 power board and requires a B210LP detector base for proper field installation. Featuring a 24Vac dc or 120Vac supply voltage range when used with the appropriate power module, the 2D51 utilizes advanced photoelectric sensing