this is a Direct Spark Ignition (DSI) control intended for systems where the spark ignites the main burners directly

While it fits many board-mounted applications

preventing premature warping or port clogging

bypass particulates

the main power poles are rated for definite purpose applications across standard line voltages up to 600VAC

Trane SWT2326 Float Swtch R-407A this is a Direct SparkThe Trane SWT2326 Float Switch is a critical SPST N C (Normally Closed) safety component designed for precise low level liquid detection within condensate drain pans and hydronic systems. Built with a brass body and stainless steel float, this genuine OEM replacement ensures high corrosion resistance in demanding HVAC environments. Its Normally Closed configuration completes the circuit during standard operation and opens when liquid levels drop or