McDonnell & Miller 21 Water Feeder R-410A Enhanced Condensate Management: Redesigned geometry

Enhanced Condensate Management: Redesigned geometry optimizes flue gas moisture drainage

Common Questions: Is this drain pan compatible with all York RTUs

the unit must be mounted with this marking facing upward

this SPST (Single Pole Single Throw) vacuum switch verifies that the inducer motor is moving sufficient air to ensure safe venting and combustion before the ignition sequence initiates

As a reliable Power Flame burner part

McDonnell & Miller 21 Water Feeder R-410A Enhanced Condensate Management: Redesigned geometryThe McDonnell & Miller Series 21 Water Feeder (Part Number 126400) is a heavy duty, float operated make up water feeder engineered specifically for boiler receiver tanks and condensate return systems. This mechanical unit facilitates proportional feed action, ensuring a consistent water level without the abrupt surges associated with solenoid based systems. By utilizing a direct mount design with a 6 bolt 5 3 4" bolt circle, this feeder installs