McDonnell & Miller 193-A Controller 30067439-890 this valve is designed to

this valve is designed to handle the operating pressures and flow characteristics of R-410A refrigerant used in modern Amana and Goodman chassis

an upright orientation is preferred

Is this the correct replacement for a normally open valve

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

McDonnell & Miller 193-A Controller 30067439-890 this valve is designed toThe 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