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Industrial Durability: Built for atmospheric and direct-fired burner applications where reliable performance in ovens or furnaces is critical
It provides the added benefit of breaking both legs of the power supply for increased safety during servicing
providing stable 24V signal output to the redundant gas valve
Technicians should check for a "Pressure Switch Open" fault code on the furnace control board
Johnson Controls W351AB-2 Humidity Control 321894-709 Industrial Durability: Built for atmosphericThe Johnson Controls W351AB 2 Humidity Control is a professional grade electronic humidity control designed for precise relative humidity management in demanding environments like computer rooms, pharmaceutical manufacturing, and clean rooms. This System 350 electronic control operates bridging a 10% to 90% RH setpoint range with a field adjustable 2% to 10% RH differential. Engineered for flexibility, it features a SPDT relay output and a built in 12
