Common Questions: Which steam trap models use the A21348-1 gasket

Robust 24VAC circuitry stabilizes flame rectification signals to minimize lockout callbacks

intermittent pressure switch trip errors

Includes factory-installed piezo igniter for reliable pilot sparking without external power

This unit facilitates precise 120V electronic sequencing

Lochinvar & A.O. Smith 100170647 Sensor Kit 321142-301 Common Questions: Which steam trapThe Lochinvar & A. O. Smith 100170647 Sensor Kit is a critical OEM replacement part designed for precise monitoring of flue temperature in high efficiency boilers and water heaters. As a veteran technician knows, managing exhaust thermal data is non negotiable for system safety and operational integrity. This flue sensor kit serves as a primary safeguard, transmitting real time temperature fluctuations to the control board. If exhaust gases exceed