this direct spark ignition (DSI) and resistance-based glow bar ensures precise fuel ignition across a broad range of Carrier

Direct compatibility with Burnham RV5

maintaining system stability and operational integrity

This automatic reset limit switch operates with a 180°F opening temperature and a 150°F closing temperature

though it can be mounted horizontally

Lochinvar & A.O. Smith 100108882 Pressure Switch 318172-701 this direct spark ignition (DSI)The Lochinvar 100108882 (also indexed under A. O. Smith 100108882) is a critical safety differential air pressure switch designed for commercial boilers and water heaters. Calibrated for a fixed setpoint of 1. 10" W. C., this SPNO (Single Pole Normally Open) switch ensures the combustion blower is generating sufficient airflow before allowing the ignition sequence to proceed. As an OEM replacement part, it is engineered to maintain high limit accuracy