McDonnell & Miller 247-2 Water Feeder R-410A For larger pipe diameters

For larger pipe diameters

including the TVS-811 and EM variations

When you are dealing with millivolt-controlled systems

it is recommended to verify if additional flange gaskets (like the 100483 series) are required for your specific furnace model during the swap

ensuring consistent airflow and thermal management for critical refrigeration and HVACR systems

McDonnell & Miller 247-2 Water Feeder R-410A For larger pipe diametersThe 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