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Designed for indoor low-pressure pulse control applications
Always verify the WC rating on the existing switch before installation
maintaining system integrity and reducing downtime
Features a 4" stainless steel probe for durable duct temperature sensor performance in high-velocity air streams
Always verify the specific model number of your air handler to ensure the internal scroll dimensions match your blower wheel's width and diameter
Johnson Controls P47AA-13 Pressure Control Refrigerant Designed for indoor low-pressure pulseAs a heavy duty steam pressure limit control, the Johnson Controls P47AA 13 is engineered for high limit or operating control applications in commercial and industrial steam heating systems. This SPST pressure switch features an "open on rise" configuration, ensuring the circuit interrupts immediately when steam levels exceed your setpoint. With a broad 0 to 150 psig pressure range and an adjustable 12 to 50 psi differential, this unit provides the