Honeywell Control box S4565A3050U

The Honeywell Control box S4565A3050U is a combined control and ignition system (KVI) designed for use in gas boilers, heaters, and water heaters with automatic ignition. It operates with a supply voltage of 220–240 V and has a protection class of IPX4. This control box is compatible with Honeywell VK41 series gas regulators and supports both spark ignition (dbi) and pilot ignition (ip) applications. It meets safety standards EN 298 and EN 60730-1. The reset wait time is 15 seconds.

Control boxes of this type are selected based on the gas regulator model and the ignition system type (dbi or ip). The supply voltage and protection class must match the installation requirements. The control box is typically mounted directly onto the gas regulator via a connector, and it can be installed at an angle of 90 degrees in any direction from the vertical. Before ordering, verify the compatibility with the specific gas regulator series and ensure the electrical connections align.

When control boxes of this kind fail, the burner may not ignite or may shut down unexpectedly. The equipment might enter a lockout state, requiring a manual reset. If the reset is attempted and fails, wait at least 15 seconds before trying again. Check for loose connections, damaged wiring, or a faulty flame sensor, as these are common causes of malfunction.