The Copeland Comfort Control (Alco) 038934 Repair Kit

Optimized Coil Voltage: Features a standard 120 Volt coil

making it ideal for managing fluid flow in fan coils

this is a high gas pressure switch designed to open the circuit on a pressure rise

McDonnell & Miller FS4-3J Flow Switch 30067439-890 The Copeland Comfort Control (Alco)The McDonnell & Miller FS4 3J Flow Switch (Part Number 114610) is a heavy duty, general purpose liquid flow switch designed for HVAC and industrial hydronic systems. This model features a 1" BSPT connection, making it a critical component for international piping standards or specific domestic applications requiring British Standard Pipe Threads. Equipped with a Single Pole, Double Throw (SPDT) switch, the FS4 3J provides versatile signaling for