Honeywell Gas boiler control unit S4565CD1039U

This is a Honeywell S4565CD1039U gas boiler control unit, designed for use in gas boilers, heaters and water heaters with automatic ignition. It cooperates with Honeywell VK41 series gas regulators, providing ignition and flame monitoring for the main and pilot burners. The unit supports both direct burner ignition (dbi) and pilot burner ignition (ip) systems. It operates at 220–240 V and complies with EN 298 and EN 60730-1. The control unit includes integrated protection functions and can be reset via its own or an external reset button, with a 15-second wait between attempts. A connector on the top simplifies mounting onto the gas regulator.

Burner control units of this type are selected by matching the supply voltage, the ignition system type (direct burner ignition or pilot burner ignition), and the gas regulator series they are designed to work with. Installation is straightforward: the unit is placed onto the gas regulator and secured via the connector on its top, and it can be oriented within a 90° angle in any direction from the vertical position of the two-position electric actuator. Before ordering, confirm that the unit's reset method (own or external button) and its safety standard certifications are acceptable for the equipment. Also verify that the controlled components (main and pilot burners) are those present in the application.