meaning it will return to the closed position upon loss of power to prevent unintended heating or cooling

Linear Control: Provides predictable flow modulation for accurate HVAC zoning and energy efficiency

allowing for set point changes without accessing the main HVAC unit

Can this relay be used in industrial-grade applications

Johnson Controls P47AA-4 Pressure Control Refrigerant meaning it will return toThe Johnson Controls P47AA 4 Pressure Control is a heavy duty steam pressure limit control engineered for high limit cutout or operating control in commercial and industrial steam heating systems. This SPST pressure switch is designed to provide professional grade reliability, featuring contacts that open on pressure rise to safeguard against overpressure conditions. With a versatile electrical rating of 120 208 240 277 Vac, the P47AA 4 integrates