it functions within the main control unit that interrogates MB-604E or MB-608E expansion boards to manage expanded burner configurations

Rugged Construction: Features vibration-resistant internals and a NEMA 4 rating for durable performance in harsh outdoor or wash-down conditions

Built with a 3-foot copper capillary

this assembly ensures the pressure switch closes correctly to initiate the ignition sequence

Durable Construction: Engineered for industrial-grade longevity in demanding geothermal and water-source applications

Grundfos 97627423 Actuator 30067439-890 it functions within the mainThe Grundfos 97627423 Actuator is a professional grade solution for precise fluid control in hydronic heating and cooling systems. Specifically engineered for use with Grundfos UP ZV zone valves, this 24V actuator features a normally closed (NC) configuration, ensuring the valve remains closed until a control signal is received. Its integrated end switch provides critical position feedback, allowing contractors to sequence boiler or pump operation