McDonnell & Miller 247-2 Water Feeder Freon Field Testing Capability: Equipped with

Field Testing Capability: Equipped with a reversible lift lever for easy "pull-up" or "pull-down" manual operational checks

protecting sensitive pressure switches and transducers from rapid cycling

Supports cost-effective fuel switching without requiring a full heater replacement

Always verify your specific furnace model number against the factory parts manual before installation

McDonnell & Miller 247-2 Water Feeder Freon Field Testing Capability: Equipped withThe McDonnell & Miller 247 2 (Part Number 133800) is a heavy duty mechanical water feeder specifically designed for steam and hot water boilers requiring consistent cold water makeup. This unit features a built in No. 2 Switch, providing integrated Low Water Cut Off (LWCO) functionality with two snap acting SPDT switches. This configuration ensures that if the water level drops below a safe threshold, the burner circuit is interrupted while