Its diaphragm-actuated design utilizes a frictionless Magnehelic movement

when utilized with the appropriate Fenwal module

always verify the primary line voltage at the boiler junction box before installation to prevent damage to the secondary windings

The unit is factory-calibrated for an "On" delay of 30-90 seconds and an "Off" delay of 1-35 seconds to ensure safe sequential staging

Warrick 164870 Float Switch 322056-301 Its diaphragm-actuated design utilizes aThe Warrick 164870 is a high performance Series M level control float switch designed for demanding liquid level monitoring in HVACR and industrial applications. Engineered with a 316 stainless steel float and stem, this side mount level sensor provides exceptional corrosion resistance and mechanical durability in high temperature or pressurized environments where plastic alternatives fail. Utilizing a reliable magnetic reed switch mechanism, the unit