How do I know when to replace the 5JE sleeve

Precision Temperature Control: Monitors air temperature with a 190-220°F range to prevent overheating

60" PF (Pressure Fall) setpoint

you would need the "A" suffix version (e

if the MFD and Voltage match

Watts 0386422 Regulator 30067439-890 How do I know whenThe Watts 0386422, technically recognized as the SB1156F 1 2" Bronze Feed Water Pressure Regulator, is a high capacity solution engineered for hydronic heating systems. Built with a durable bronze valve body and a union solder inlet x NPT threaded outlet, this regulator is designed to automatically fill boiler piping and maintain a consistent system head. Optimized for hydronic boiler feed applications, it features an adjustable pressure range of 10