Johnson Controls P74BA-1 Pressure Control 30067439-890 substituting a higher voltage may

substituting a higher voltage may lead to control board overheating or failure

including the motor

it serves as a direct technical replacement for the Copelametic #VP103

A trip usually indicates a high-limit temperature condition

ensuring compatibility with a wide range of residential and light commercial furnaces

Johnson Controls P74BA-1 Pressure Control 30067439-890 substituting a higher voltage mayThe Johnson Controls P74BA 1 is a robust differential pressure control designed for demanding commercial HVACR applications, including chiller proof of flow and refrigeration compressor lube oil monitoring. Engineered with stainless steel bellows, this SPST pressure switch effectively measures the variance between two sensing points, opening the circuit on a decrease in pressure difference. This action is critical for protecting equipment from low