McDonnell & Miller 193-A-7B Controller R-22 making it a standard fit

making it a standard fit for many ICP

For contractors installing ASSE 1017 certified components

Does this unit require a separate power supply

Can this gauge be used on ASME power boilers

Always check the primary voltage matching before energizing

McDonnell & Miller 193-A-7B Controller R-22 making it a standard fitThe McDonnell & Miller 193 A 7B (Part Number 164500) is a robust, float operated combination low water cut off and pump controller specifically engineered for commercial and industrial steam boiler applications. Designed to handle a maximum pressure of 150 PSI, this unit integrates a No. 7B potentiometer switch, which provides a 135 ohm proportional control signal to maintain a constant boiler water level by modulating the feed valve. Unlike standard