McDonnell & Miller 193-A Controller 30067439-890 the neoprene material used in

the neoprene material used in the MP516A diaphragm remains resilient under fluctuating temperatures

this OEM component ensures seamless HVACR system compatibility when interfacing between thermostat controllers and high-load mechanical parts

ensuring positive power interruption the moment internal temperatures exceed safe operating parameters

it is recommended to install the valve with the coil in a vertical-upright position

or data logger that accepts a 4-20mA current loop signal

McDonnell & Miller 193-A Controller 30067439-890 the neoprene material used inThe McDonnell & Miller 193 A is a heavy duty combination low water cut off and pump controller engineered for commercial steam boiler applications. Designed for boilers with a maximum pressure of 150 PSI, this unit features dual snap acting SPDT switches for precise burner control and pump activation. The 193 A model utilizes alternate tappings to simplify installation on various boiler configurations. Its rugged float operated mechanism ensures