Xylem-McDonnell & Miller 194-A 194 Water Cut Off & Pump Controller W/Alternate Tappings

The Xylem-McDonnell & Miller 194-A 194 W/Alternate Tappings is a pressure switch built primarily for HVAC equipment's water systems. It works by automatically controlling water pressure in the system. This is critical because too high or low pressure can harm sensitive components and impair system performance. The switch operates by turning on and off the pump in response to predetermined pressure levels. When the pressure drops below a certain level, the switch starts the pump, which restores pressure within the system. When pressure exceeds a certain level, the switch deactivates the pump. The Xylem-McDonnell & Miller 194-A 194 W/Alternate Tappings protect equipment, improve system function, and extend its lifespan by maintaining consistent pressure. It also contributes to reduced energy consumption and noise.