V4073A Motorised Midposition Diverter Valve ( 5 wire valve )The V4073A Valve has been designed to control the flow of water in domestic central heating systems, where both radiator and hot water cylinder circuits are pumped. It is typically suited for small to medium sized installations.The Mid-position Diverter Valve should be used in conjunction with a room thermostat and cylinder thermostat to provide full temperature control of a conventional, fully pumped central heating installation. When used in this way, the control system is known as Sundial Y Plan and the components can be connected together using the Sundial Plan Wiring Centre which has dedicated terminations and there is no need for a wiring diagram.An alternative method of wiring is to use the Honeywell 10-way Junction Box (42002116-002) together with the Honeywell Sundial Plans Wiring Booklet.FeaturesSpring return actionThree position operationPowerhead replaceable without draining downManual lever for filling/draining downQuiet operation, minimal power consumptionProvides electrical output to boiler and/or pumpOptions22mm/28mm or 3/4″, 1″ connectionsReplacement motor/powerhead/ball and ‘O’ ring kitDimensionsV4073A1039: 15.4 x 13 x 9.4cmV4073A1088: 15.2 x 13.2 x 8.4cmThe 40003916-001/U replacement head is designed for the replacement heads for port motorised valves. This positive head can be used to replace the removable valve heads without any system drainage.Motor open.1 metre integral flying lead replaced the existing connector colour for colour.Power rating 6W.Powerhead can be replaced without drain down. Consumes power efficiently without excess energy usage. Honeywell Home V4073A1088 Motorised Midposition Diverter 28mm .: V4073

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