Honeywell S4565B2041 gas boiler control unit

SKU: S4565B2041U, 534.412.113

Price on request

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Designed to optimize the operation of gas boilers, heaters and water heaters with an automatic ignition system, the innovative joint control and ignition system (CVI) is based on the Honeywell S4565B2041U control units and functions together with the VK41… series gas regulators, providing a high level of reliability and safety.

Important characteristics of the Resideo S4565B 2041U burner control unit include:

1. Safe Ignition: CVI guarantees reliable ignition and effective flame control on the main burner of the heating equipment, which significantly reduces the risk of fire and emergency situations.

2. Flexible Settings: The system provides the ability to configure the ignition process, as well as flame control and gas flow control for both the main and pilot burners, which ensures optimal efficiency and stability of the equipment.

The Honeywell S4565 B 2041U gas control offers a variety of variations designed for different ignition systems:

• Spark Ignition Of The Burner (DBI): These regulator options ensure a safe ignition time, which is especially important for systems with spark ignition of the burner.

• Pilot Burner Ignition (IP): For systems with pilot burner ignition, regulators with the suffix B indicate an atmospheric system with pilot burner ignition and a timer for safe ignition time.

These controllers of the Honeywell S4565B2041B oil burner control unit with a voltage of 220/240 V~ can be easily connected to the electrical circuit of the VK41 series gas regulator…, but it is important to note that they do not affect the flame directly. They have outstanding characteristics and high reliability, and are also available in various modifications corresponding to various ignition systems.

General provisions

1. Comprehensive Protection: All burner protection functions are integrated into a reliable system, ensuring a high level of safety.

2. Optimal Solutions: Special attention is paid to finding optimal solutions for two types of systems: with spark ignition of the burner (DBI) and with a pilot burner (IP) for ignition of the main burner.

3. Proven Principles: The gas regulator and ignition regulator are designed using time-tested principles, guaranteeing reliability and stability of operation.

4. Simplified Installation: The installation of the ignition regulator on the gas regulator has become easier thanks to the connector located on the top of the regulator.

5. Flexible Installation: The S4565B 2041B burner control can be installed within a 90° angle in any direction from the vertical position of the two-position electric actuator, which provides convenience during installation and configuration.

Reset the lock

The Honeywell S4565 B 2041B gas control unit can be reset by pressing their own or external reset button. If the first attempt fails, you should wait at least 15 seconds before trying again.

When heating is required, the airflow control relay detects the absence of airflow and starts the fan after a time equal to the sum of the self-test period and the waiting period.

When this relay determines the sufficiency of the air flow, the built-in ignition device and the gas valve are switched on. The spark ignites the gas, and the resulting flame is detected by the flame sensor rod.

After the flame is established, a preset extended ignition time can be added.

If the flame does not set during the safe ignition time, the ignition regulator is blocked.

If the flame goes out during normal operation, the ignition controller repeats the starting sequence.

If the air flow control relay does not detect the air flow during the safe ignition time, the ignition regulator is blocked.


The burner control machine is designed in accordance with European standards:

– EN 298: Automatic control systems for gas burners.

– EN 60730-1: Automatic electrical control devices for household and similar purposes.

With regard to electrical safety, the burner controller S4565B2041 can be used in installations that meet the electrical safety requirements for household electrical appliances defined by the European standards EN 60335 series.