{"product_id":"honeywell-home-22mm-3-port-diverter-valve-v4044c1288-w-plan","title":"Honeywell Home 22mm 3 Port Diverter Valve | V4044C1288 | W Plan","description":"\u003c!-- SEO Product Name: Honeywell Home 22mm 3 Port Diverter Valve | V4044C1288 | W Plan --\u003e\n\n\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; color:#2B2B2B; line-height:1.6; font-family:Arial, Helvetica, sans-serif;\"\u003e\n\u003cp style=\"font-size:16px; line-height:1.7; color:#2B2B2B; margin:0 0 16px 0;\"\u003eThe \u003cstrong\u003eHoneywell Home V4044C1288 22mm 3 Port Diverter Valve\u003c\/strong\u003e is a motorised valve designed to control the flow of water between heating and hot water circuits in domestic fully pumped central heating systems, allowing flow to only one zone at a time.\u003c\/p\u003e\n\u003cp style=\"font-size:16px; line-height:1.7; color:#2B2B2B; margin:0 0 16px 0;\"\u003eManufactured by \u003cstrong\u003eResideo\u003c\/strong\u003e under the Honeywell Home brand, this valve is the standard control component for the \u003cstrong\u003eSundial W Plan hot water priority system\u003c\/strong\u003e, directing boiler output either to the radiator circuit or the hot water cylinder. It features a \u003cstrong\u003e3-wire, spring return powerhead\u003c\/strong\u003e that can be replaced without draining down the system, making servicing straightforward for installers.\u003c\/p\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; margin:18px -4px 22px -4px;\"\u003e\n\u003cdiv style=\"flex:1 1 140px; min-width:110px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:800; color:#008377CF;\"\u003e22mm\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px; color:#555; margin-top:4px; line-height:1.3;\"\u003eCompression Fitting\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px; min-width:110px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:800; color:#008377CF;\"\u003e3 Port\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px; color:#555; margin-top:4px; line-height:1.3;\"\u003eDiverter Valve\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px; min-width:110px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:800; color:#008377CF;\"\u003e6W\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px; color:#555; margin-top:4px; line-height:1.3;\"\u003ePower Consumption\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px; min-width:110px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:800; color:#008377CF;\"\u003e8.6 bar\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px; color:#555; margin-top:4px; line-height:1.3;\"\u003eMax Operating Pressure\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px; min-width:110px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:800; color:#008377CF;\"\u003e88°C\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px; color:#555; margin-top:4px; line-height:1.3;\"\u003eMax Media Temperature\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px; min-width:110px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:800; color:#008377CF;\"\u003e26kW\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px; color:#555; margin-top:4px; line-height:1.3;\"\u003eSystem Capacity\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FDECEC; border-left:4px solid #D32F2F; border-radius:0 8px 8px 0; padding:14px 18px; margin:16px 0; font-size:15px; color:#2B2B2B; line-height:1.6;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#D32F2F; margin-bottom:4px;\"\u003e⚠ Important Safety Information\u003c\/div\u003eThis valve \u003cstrong\u003emust not be fitted on the return pipework\u003c\/strong\u003e under any circumstances. Boiler flow connects to port AB, the radiator circuit to port A, and the hot water cylinder circuit to port B. It must also not be mounted with the valve head below the horizontal level of the pipework.\u003c\/div\u003e\n\u003cdiv style=\"font-size:19px; font-weight:700; color:#00625D; margin:32px 0 14px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eKey Features\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; margin:6px -5px 22px -5px;\"\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:240px; border:1px solid #D9EDEA; border-radius:8px; padding:16px 18px; margin:5px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#00625D; font-size:15.5px; margin-bottom:6px;\"\u003eSpring Return Powerhead\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px; color:#444; line-height:1.55;\"\u003eThe \u003cstrong\u003espring return action\u003c\/strong\u003e ensures the valve fails safely, defaulting the ball position when power is removed.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:240px; border:1px solid #D9EDEA; border-radius:8px; padding:16px 18px; margin:5px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#00625D; font-size:15.5px; margin-bottom:6px;\"\u003ePowerhead Replaceable Without Draindown\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px; color:#444; line-height:1.55;\"\u003eThe motorised head can be \u003cstrong\u003eremoved and replaced without draining the system\u003c\/strong\u003e, significantly reducing service time and disruption.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:240px; border:1px solid #D9EDEA; border-radius:8px; padding:16px 18px; margin:5px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#00625D; font-size:15.5px; margin-bottom:6px;\"\u003eManual Lever for Filling and Draining\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px; color:#444; line-height:1.55;\"\u003eA built-in \u003cstrong\u003emanual override lever\u003c\/strong\u003e allows the ball to be centred manually to assist with system filling and draindown procedures.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:240px; border:1px solid #D9EDEA; border-radius:8px; padding:16px 18px; margin:5px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#00625D; font-size:15.5px; margin-bottom:6px;\"\u003eTwo-Position Diverter Operation\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px; color:#444; line-height:1.55;\"\u003eControls flow between \u003cstrong\u003eAB-A and AB-B ports\u003c\/strong\u003e, directing the boiler's output to either the heating circuit or the hot water cylinder — never both simultaneously.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:240px; border:1px solid #D9EDEA; border-radius:8px; padding:16px 18px; margin:5px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#00625D; font-size:15.5px; margin-bottom:6px;\"\u003eQuiet, Low-Power Operation\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px; color:#444; line-height:1.55;\"\u003eDraws just \u003cstrong\u003e6W of power\u003c\/strong\u003e during operation, with quiet running suited to domestic installations near living spaces.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:240px; border:1px solid #D9EDEA; border-radius:8px; padding:16px 18px; margin:5px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#00625D; font-size:15.5px; margin-bottom:6px;\"\u003eComplete With 1 Metre Flying Lead\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px; color:#444; line-height:1.55;\"\u003eSupplied with a \u003cstrong\u003e1 metre, 5-core heat-resistant cable\u003c\/strong\u003e ready for connection to a Resideo junction box on a 230V AC supply.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size:19px; font-weight:700; color:#00625D; margin:32px 0 14px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eTechnical Specification\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:18px; border:1px solid #D9EDEA; border-radius:6px; overflow:hidden;\"\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; font-size:14.5px; padding:9px 14px; border-radius:6px 6px 0 0;\"\u003eElectrical\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#ffffff; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eSupply voltage\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003e230-240V AC ~ 50Hz\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#F7FAFA; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003ePower consumption\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003e6W\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#ffffff; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eLead supplied\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003e1 metre, 5-core\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#F7FAFA; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eControl\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003eLine voltage, single pole single throw\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:18px; border:1px solid #D9EDEA; border-radius:6px; overflow:hidden;\"\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; font-size:14.5px; padding:9px 14px; border-radius:6px 6px 0 0;\"\u003eMechanical \u0026amp; Connections\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#ffffff; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eValve type\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003eMid-position \/ 3-port diverter valve\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#F7FAFA; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003ePipe connection\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003e22mm compression fitting\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#ffffff; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eNumber of ports\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003e3 (AB, A, B)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#F7FAFA; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eBody material\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003eBrass\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#ffffff; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eBall material\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003eNBR\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#F7FAFA; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eValve seat material\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003eZinc\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#ffffff; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eWidth\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003e112mm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#F7FAFA; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eHeight\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003e133mm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#ffffff; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eDepth\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003e60mm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:18px; border:1px solid #D9EDEA; border-radius:6px; overflow:hidden;\"\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; font-size:14.5px; padding:9px 14px; border-radius:6px 6px 0 0;\"\u003ePerformance\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#ffffff; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eMaximum operating pressure\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003e8.6 bar\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#F7FAFA; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eMaximum close-off differential pressure\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003e0.69 bar\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#ffffff; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eMaximum media temperature\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003e88°C\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#F7FAFA; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eMinimum media temperature\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003e5°C\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#ffffff; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eMaximum ambient air temperature\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003e52°C\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#F7FAFA; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eMinimum ambient temperature\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003e5°C\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#ffffff; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eSystem capacity\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003eUp to 90,000 Btu\/h (26kW)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:18px; border:1px solid #D9EDEA; border-radius:6px; overflow:hidden;\"\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; font-size:14.5px; padding:9px 14px; border-radius:6px 6px 0 0;\"\u003eApplication \u0026amp; Compatibility\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#ffffff; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eSystem type\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003eDomestic fully pumped central heating\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#F7FAFA; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eCompatible system plan\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003eSundial W Plan hot water priority\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#ffffff; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eManufacturer part number\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003eV4044C1288\/U\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#F7FAFA; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eReplacement motor\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003e40002737-003\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#ffffff; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eReplacement powerhead\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003e40003916-002\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; justify-content:space-between; padding:9px 14px; background:#F7FAFA; border-bottom:1px solid #D9EDEA; font-size:14.5px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eBall \u0026amp; O-ring kit\u003c\/span\u003e\u003cspan style=\"font-weight:600; color:#222; text-align:right;\"\u003e272742A CARD\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FFF6E5; border-left:4px solid #E0942A; border-radius:0 8px 8px 0; padding:14px 18px; margin:16px 0; font-size:15px; color:#2B2B2B; line-height:1.6;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#E0942A; margin-bottom:4px;\"\u003eℹ Please Note\u003c\/div\u003eWiring must connect boiler flow to \u003cstrong\u003eport AB\u003c\/strong\u003e, the radiator circuit to \u003cstrong\u003eport A\u003c\/strong\u003e, and the hot water cylinder circuit to \u003cstrong\u003eport B\u003c\/strong\u003e. Installation must be carried out by a competent person in accordance with I.E.E. Regulations and the Electricity at Work Regulations, with a Class A isolating switch incorporated in the fixed wiring.\u003c\/div\u003e\n\u003cdiv style=\"font-size:19px; font-weight:700; color:#00625D; margin:32px 0 14px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"margin:14px 0;\"\u003e\n\u003cdetails style=\"border:1px solid #D9EDEA; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#E6F4F3; color:#00625D; font-weight:700; padding:12px 16px; cursor:pointer; font-size:15px; list-style:none;\"\u003eWhat system is this valve designed for?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px; font-size:14.5px; color:#444; line-height:1.6; background:#ffffff;\"\u003eThe V4044C1288 is built for the \u003cstrong\u003eSundial W Plan hot water priority system\u003c\/strong\u003e, used in domestic fully pumped central heating systems up to 26kW (90,000 Btu\/h).\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #D9EDEA; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#E6F4F3; color:#00625D; font-weight:700; padding:12px 16px; cursor:pointer; font-size:15px; list-style:none;\"\u003eCan the powerhead be replaced without draining the system?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px; font-size:14.5px; color:#444; line-height:1.6; background:#ffffff;\"\u003eYes — the \u003cstrong\u003epowerhead is replaceable without draining down\u003c\/strong\u003e, allowing faster servicing compared with valves that require a full system drain.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #D9EDEA; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#E6F4F3; color:#00625D; font-weight:700; padding:12px 16px; cursor:pointer; font-size:15px; list-style:none;\"\u003eWhich port does the boiler connect to?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px; font-size:14.5px; color:#444; line-height:1.6; background:#ffffff;\"\u003eBoiler flow connects to \u003cstrong\u003eport AB\u003c\/strong\u003e. The radiator circuit connects to port A, and the hot water cylinder circuit connects to port B. The valve \u003cstrong\u003emust never be fitted on the return pipework\u003c\/strong\u003e.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #D9EDEA; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#E6F4F3; color:#00625D; font-weight:700; padding:12px 16px; cursor:pointer; font-size:15px; list-style:none;\"\u003eWhat is the manual lever used for?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px; font-size:14.5px; color:#444; line-height:1.6; background:#ffffff;\"\u003eThe manual lever centres the internal ball to \u003cstrong\u003eassist with filling and draining down\u003c\/strong\u003e the system. It should be returned to the 'AUTO' position for normal operation.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #D9EDEA; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#E6F4F3; color:#00625D; font-weight:700; padding:12px 16px; cursor:pointer; font-size:15px; list-style:none;\"\u003eCan this valve be installed at any angle?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px; font-size:14.5px; color:#444; line-height:1.6; background:#ffffff;\"\u003eIt may be plumbed in at any angle, but \u003cstrong\u003emust not be mounted with the valve head below the horizontal level\u003c\/strong\u003e of the pipework, as this could create a safety hazard in the event of a leak.\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":66018146156893,"sku":"V4044C1288","price":139.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/Honeywell-Home-3-Port-Diverter-Valve-3-Wire-V4044C1288.jpg?v=1790246987","url":"https:\/\/qualityheating.co.uk\/products\/honeywell-home-22mm-3-port-diverter-valve-v4044c1288-w-plan","provider":"AIZO Quality Heating","version":"1.0","type":"link"}