McDonnell & Miller 194-A-7B Controller Refrigerant Engineered for use with R134a

Engineered for use with R134a refrigerant

The Johnson Controls VG7243ET Valve Body is a high-performance 1/2-inch NPT globe valve engineered specifically for technical HVACR applications requiring precise equal percentage flow characteristics

The multi-speed taps provide versatility for balancing air distribution across ductwork

The 1/2-inch diameter shaft with a flat side ensures a secure connection to the fan blade

Whether utilizing 0-10VDC or 0-20mA signals

McDonnell & Miller 194-A-7B Controller Refrigerant Engineered for use with R134aThe McDonnell & Miller 194 A 7B (Part Number 167100) is a heavy duty combination low water cut off and pump controller engineered for commercial and industrial steam boiler applications. Designed to handle a maximum pressure of 250 PSI, this unit integrates a high performance potentiometer switch to provide a proportional 135 ohm signal, ensuring a constant water level is maintained regardless of varying steaming rates. As a veteran grade float