The Honeywell V4043H1056 is a high-quality automatic diverter valve used in central heating and hot water systems. It is designed to direct the flow of heated water between the central heating circuit and the domestic hot water circuit, based on demand from the system controls.

Function & Purpose

This diverter valve receives signals from thermostats, programmers, or boiler control modules and shifts to route water where it’s needed. When there is a demand for hot water at taps or showers, the valve opens to send water to the hot water circuit. When there is a demand for heating, it switches to direct flow to the radiators. It helps ensure that the right output (heating or hot water) is prioritised according to the current requirement.

Compatibility

The V4043H1056 is compatible with many conventional and system boilers that utilise a diverter valve for heating/hot water control. It works with standard HVAC control wiring and thermostat signals to manage water flow in typical domestic central heating systems.

Design & Build Quality

As a genuine Honeywell Home component, this valve is engineered for durability and reliable performance. It features a robust valve body and a reliable actuator mechanism that provides smooth and accurate switching between circuits, even with frequent demand changes.

Ideal Applications

This diverter valve is ideal for homes where separate control of heating and hot water is required, especially in systems using conventional boilers, heat interfaces, or separate cylinder control. It is commonly used by heating engineers when installing or repairing systems to ensure accurate and dependable flow switching between heating and hot water circuits.