the EC3 controller is stand-alone

the A17533 Mueller provides the mechanical integrity required for long-term system efficiency and is fully compatible with common HFC

Built for heavy-duty service in York and Johnson Controls residential heating units

Quiet Operation: The 8-pole motor design provides lower RPM performance

depending on the specific seal material and system pressure

Utica-Dunkirk 550001508 Draft Inducer R-448A the EC3 controller is stand-aloneIf you are troubleshooting a pressure switch lockout or dealing with a seizing blower wheel on a Utica or Dunkirk boiler, the Utica Dunkirk 550001508 Draft Inducer is the specific OEM replacement part required to restore proper exhaust sequencing. This high static furnace inducer motor is critical for purging the heat exchanger of residual combustion gases and establishing the negative pressure necessary to close the sail or pressure switch. Designed