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As a manual reset pressure switch
it utilizes a 24V control circuit to actuate internal bimetal heaters
Whether you are replacing a 3/8 inch NPT solenoid or installing a new ASCO 8210 series component
System Reliability: Integrated check valve allows for bidirectional flow in heat pump applications
Johnson Controls A11D-5 Temperature Control 30067439-890 As a manual reset pressureThe Johnson Controls A11D 5 is a professional grade low temperature cutout freezestat designed for critical freeze protection in HVAC systems. Engineered for high stakes applications, this mechanical temperature control monitors air or liquid temperatures and opens the SPDT switch when the temperature drops below the setpoint across any 1 foot of its 20 foot vapor actuated sensing element. This specific model features a manual reset mechanism,