Weil McLain 383-500-658 Control Module Refrigerant providing the essential staging required

providing the essential staging required to prevent electrical surges

the built-in bracket and quick-connect terminals allow for direct panel mounting and wiring without a base

Always verify your primary transformer output before installation

The Reznor 196654 Pressure Switch is a critical safety component designed for precise combustion air proving in Reznor HVAC unit heaters

Weil McLain 383-500-658 Control Module Refrigerant providing the essential staging requiredThe Weil McLain 383 500 658 Ultra U IGN Control Module is a critical integrated ignition and blower control assembly designed specifically for Ultra Series Gas Fired Water Boilers. This OEM Weil McLain replacement part manages the specialized sequence of operations for the burner, including pre purge, hot surface ignition, gas valve actuation, and flame rectification monitoring. Engineered for precision, it ensures the Ultra Series boiler control