Warrick DFL1A0Z040406 Control Freon The Weil-McLain 340-004-605 Observation Port

The Weil-McLain 340-004-605 Observation Port is a critical boiler component designed for high-temperature service and combustion chamber monitoring

delivering a consistent speed of 825 RPM

This solid-state controller features a fixed 10K Ohm sensitivity

upright position to prevent sediment buildup in the plunger tube and ensure the longest possible service life

Warrick DFL1A0Z040406 Control Freon The Weil-McLain 340-004-605 Observation PortThe Warrick DFL1A0Z040406 is a rugged, dual function control engineered for critical low water cutoff (LWCO) and differential level signaling. Designed as a solid state solution with no moving parts, this board effectively eliminates the mechanical failures common in float based systems. It features an integrated manual reset and a 3 second time delay on decreasing levels, specifically tuned to prevent nuisance tripping caused by turbulent liquid