Field Controls 46282643 Fixed Post Purge Control 80+ Systems

The Field Controls 46282643 Fixed Post Purge Control is used to regulate the shutdown cycle of the post-burner by maintaining the operation of the draft inducer for a set period after the flame is extinguished in HVAC systems. It is an automatic system with an internal timing circuit that activates the inducer motor to remove any remaining combustion gases in the heat exchanger and vent connector. It is included in the control wiring of gas furnace systems, and it is part of the existing safety and ignition sequence. It is a controlled purge that assists in proper venting.