It is recommended to retain the hardware from the existing unit

this Yellow Spring provides a precise outlet pressure range of 3-10 psi

What is the proper secondary voltage reading

the AM-602 actuator spacer provides the precise mechanical offset required for high-performance operation

Johnson Controls A99BC-25 Temperature Sensor It is recommended to retainThe Johnson Controls A99BC 25 is a high precision PTC silicon temperature sensor designed for demanding HVACR applications. Engineered with a passive PTC (Positive Temperature Coefficient) element, this sensor features a reference resistance of 1,035 ohms at 77? F (25? C), ensuring reliable performance when integrated with System 450, A421, and System 350 control modules. The A99BC 25 temperature sensor is equipped with a 9 3 4 inch high temperature