The Honeywell Home Diverter Valve 28 mm (V4044C1569/U) is a motorised valve used in central heating and hot water systems to automatically control the routing of heated water between the heating circuit and the domestic hot water circuit. It provides smooth, reliable switching based on demand from thermostats or the heating programmer.

Function & Purpose

This diverter valve directs hot water either to the radiators for space heating, to the hot water cylinder for domestic hot water, or to both when required. When a call for hot water is detected, the valve actuator shifts to prioritise the hot water circuit. When heating is needed, the valve shifts back to the heating circuit. It ensures that your central heating system responds correctly to your controller and thermostat settings without manual intervention.

Compatibility

The V4044C1569/U diverter valve is designed for 28 mm pipework, fitting standard domestic and light commercial central heating systems that use 28 mm copper or compatible pipework. It interfaces with common room thermostats, heating programmers, and boiler control systems.

Design & Build Quality

As a genuine Honeywell Home component, this diverter valve features durable materials and a reliable motorised actuator capable of repeated operation over long service life. The valve body and internal mechanisms are engineered to withstand the pressures and temperatures typical of central heating operation, providing dependable performance.

Ideal Applications

This diverter valve is ideal for zoned heating systems or systems where a single valve is needed to control both the central heating and hot water demands. It is commonly used in installations with hot water cylinders and separate heating circuits, and is suitable for upgrades, replacements, or new heating system builds where automated control is required.