Weil McLain 383-500-665 Control Module Freon Precise Sensing: High-accuracy NTC thermistor

Precise Sensing: High-accuracy NTC thermistor assembly ensures the controller accurately tracks boiler temperature for safety limit and circulator control

causing it to fail closed

The Johnson Controls TE-6001-4 is a professional-grade room temperature sensing hardware assembly designed for versatility in commercial HVAC environments

leak-proof integration into the refrigerant circuit

when paired with a UL-recognized Warrick control

Weil McLain 383-500-665 Control Module Freon Precise Sensing: High-accuracy NTC thermistorThe Weil McLain 383 500 665 Control Module is the professional grade U Control Upgrade Kit engineered specifically for Ultra Series 1 and Series 2 gas boilers. This OEM boiler control board is a comprehensive field integration solution, serving as the official 383 500 191 replacement. It is critical for technicians to note that this is an upgrade kit, not a standard drop in component. The 383 500 665 provides advanced diagnostics and enhanced ignition