Honeywell V4043H 1056 2 Port Zone Valve Normally Closed 22mm

Product Information

The Valve is ‘normally closed’, which means that the valve itself will be in a closed state by default whilst the actuator is off.

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The V4043H normally closed model with end switch for electrical control of boiler and pump in a central heating system. Honeywell provide the same high standard across a large number of industries including manufacturing, vehicles and the heating industry.The V4043B normally open model is particularly applicable to control of solid fuel systems, since it will always fail-safe in the event of a power failure. THIS ACCESSORY MUST BE FITTED BY A COMPETENT PERSON, AND INSTALLATION MUST COMPLY WITH THE GUIDANCE PROVIDED IN THE CURRENT EDITIONS OF BS7671 (IEE WIRING REGULATIONS) AND PART ‘P’ OF THE BUILDING REGULATIONS.