Weil McLain 383-500-220 Wire Harness 30067439-890 By replacing the internal solenoid

By replacing the internal solenoid valve piston and seals

ensuring system safety by breaking the electrical circuit when temperatures reach the user-defined set point

in many ASCO configurations

If airflow is sufficient and the switch opens below the 270

ensuring stable performance in demanding environments prone to vibration and mechanical shock

Weil McLain 383-500-220 Wire Harness 30067439-890 By replacing the internal solenoidAs an HVAC professional, you know that intermittent communication errors in Weil McLain Ultra Gas Boilers are often traced back to compromised low voltage signals. The Weil McLain 383 500 220 Wire Harness is the direct OEM replacement engineered specifically for the Ultra 230 and compatible Ultra series 4 units. This low voltage assembly facilitates critical data exchange between the U Control module and peripheral sensors, ensuring precise modulation