Weil McLain 383-500-665 Control Module Freon causing it to fail closed

causing it to fail closed

always mount the Pressuretrol controller on a steam trap siphon (pigtail)

when paired with a UL-recognized Warrick control

As the direct replacement for Hydrotherm 02-5208

Can this actuator be used in 4-20 mA control loops

Weil McLain 383-500-665 Control Module Freon causing it to fail closedThe 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