{"title":"Solar Thermal","description":"\u003cdiv class=\"markdown markdown-main-panel enable-updated-hr-color\" id=\"model-response-message-contentr_b0c4b867d2e6166d\" aria-live=\"polite\" aria-busy=\"false\" dir=\"ltr\"\u003e\n\n\u003ch2\u003eSolar Thermal Energy for Homes and Businesses: Proven Efficiency\u003c\/h2\u003e\n\n\u003cp\u003eAt \u003cb\u003eQ-Tech\u003c\/b\u003e, we are \u003cb\u003eexperts in solar thermal energy systems\u003c\/b\u003e, a sustainable, mature, and highly efficient technology that directly harnesses the sun's energy to heat fluids and generate heat. Unlike other sources, solar thermal is not a bet on the future, but a \u003cb\u003etested and reliable\u003c\/b\u003e product that has been offering a clear return on investment for decades in the production of Domestic Hot Water (DHW) and heating support. We work with the \u003cb\u003ebest manufacturers\u003c\/b\u003e on the market, such as Viessmann, to provide you with customized solutions that ensure maximum efficiency and durability, adapting to the specific needs of each home or business.\u003c\/p\u003e\n\n\u003cp\u003eOur systems are recognized for their \u003cb\u003esimplicity of installation and low maintenance\u003c\/b\u003e. By significantly reducing energy consumption from conventional sources, you will not only see a drop in your operating costs, but you will also be actively contributing to the reduction of \u003cspan class=\"math-inline\" data-math=\"\\text{CO}_2\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e\u003cspan class=\"mord text\"\u003eCO\u003c\/span\u003e\u003cspan class=\"msupsub\"\u003e\u003cspan class=\"vlist-t vlist-t2\"\u003e\u003cspan class=\"vlist-r\"\u003e\u003cspan class=\"vlist\"\u003e\u003cspan class=\"\"\u003e\u003cspan class=\"pstrut\"\u003e\u003c\/span\u003e\u003cspan class=\"sizing reset-size6 size3 mtight\"\u003e\u003cspan class=\"mord mtight\"\u003e2\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"vlist-s\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"vlist-r\"\u003e\u003cspan class=\"vlist\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e emissions, making it one of the most \u003cb\u003esustainable\u003c\/b\u003e options available.\u003c\/p\u003e\n\n\u003ch3\u003e🌞 Free Solar Energy and Thermal Superiority in Spain\u003c\/h3\u003e\n\n\u003cp\u003eThe idea of \u003cb\u003efree solar energy\u003c\/b\u003e is, fundamentally, an economic reality: once the initial cost of the installation is covered, the resource (solar radiation) does not generate variable costs. Given the \u003cb\u003eexceptional solar radiation in Spain\u003c\/b\u003e, a European leader in sunshine hours, the implementation of a solar thermal system is not only highly viable, but maximizes the \u003cb\u003eReturn on Investment (ROI)\u003c\/b\u003e in less time.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eWhy is Solar Thermal the preferred solution for heating water?\u003c\/b\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhile a solar photovoltaic (PV) energy system must first convert radiation into electricity, and this, in turn, into heat (a process with inherent conversion losses), solar thermal performs a \u003cb\u003edirect and much more efficient conversion of solar radiation into thermal energy\u003c\/b\u003e. This difference is crucial:\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eModern solar thermal collectors achieve conversion efficiencies \u003cb\u003esuperior\u003c\/b\u003e to those of a PV system coupled to an electric resistance for fluid heating.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eFor projects where the main demand is purely thermal, solar thermal technology remains the \u003cb\u003etechnically most effective\u003c\/b\u003e and cost-efficient solution.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e🛠️ Collector Technology: Flat Plate vs. Vacuum Tube\u003c\/h3\u003e\n\n\u003cp\u003eWe offer kits and components with the two main types of collectors, allowing you to choose the one most suitable according to the climate, latitude, and temperature requirements of your project:\u003c\/p\u003e\n\n\u003ch4\u003eFlat Plate Solar Collectors\u003c\/h4\u003e\n\n\u003cp\u003eMature and \u003cb\u003ehighly cost-effective\u003c\/b\u003e technology. They are ideal for areas with good radiation and constant DHW use. Their integrated design facilitates installation and offers excellent durability and performance in residential and heating support applications.\u003c\/p\u003e\n\n\u003ch4\u003eVacuum Tube (Evacuated) Solar Collectors\u003c\/h4\u003e\n\n\u003cp\u003eThe option for \u003cb\u003emaximum thermal performance\u003c\/b\u003e. The vacuum between the inner and outer tube acts as almost perfect insulation, minimizing heat losses. This makes them essential for:\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eCold climates or areas with high cloud cover.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eIndustrial or commercial applications requiring high temperatures.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eSystems seeking high performance even in winter.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e✅ Competitive Advantages of Buying Your System from Q-Tech\u003c\/h3\u003e\n\n\u003cp\u003eChoosing Q-Tech means partnering with a consultant, not just a supplier. Our technical expertise in HVAC, based on high-quality standards, is your main guarantee:\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eSpecialized Technical Advice:\u003c\/b\u003e We offer \u003cb\u003eprecise sizing\u003c\/b\u003e for your system. Our experts analyze your actual consumption and the radiation profile of your location to ensure maximum performance without unnecessary costs due to oversizing.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eCertified and Customized Kits:\u003c\/b\u003e We only work with high-quality, proven-performance equipment that is easy to install and maintain.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eAfter-Sales Support and Reliability:\u003c\/b\u003e We offer ongoing technical support. If you are looking to \u003cb\u003ereduce energy costs\u003c\/b\u003e and significantly improve the thermal efficiency of your home or business, \u003cb\u003esolar thermal energy\u003c\/b\u003e is the perfect solution, and at Q-Tech, we help you make it a reality.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003eWould you like us to help you \u003cb\u003esize a solar thermal kit\u003c\/b\u003e specifically for your type of home or business?\u003c!----\u003e\u003c\/p\u003e\n\n\n\u003c\/div\u003e","products":[{"product_id":"liquido-solar-tyfocor-l-wtf-s-diluido","title":"Tyfocor L \/ WTF S solar fluid, diluted","description":"\u003ch3\u003eTyfocor L \/ WTF S Diluted Solar Fluid\u003c\/h3\u003e\n\u003cp\u003eThe \u003cmeta charset=\"utf-8\"\u003eTyfocor L \/ WTF S \u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003esolar fluid prevents freeze damage in the solar installation while also protecting against corrosion.\u003c\/span\u003e\n\u003c\/p\u003e\n\u003cp\u003eThe \u003cmeta charset=\"utf-8\"\u003eTyfocor L \/ WTF S \u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003esolar fluid is biodegradable, food-safe, and does not attack the standard sealing materials used in heating systems.\u003c\/span\u003e\n\u003c\/p\u003e\n\u003ch4\u003eFeatures of Tyfocor L \/ WTF S Diluted Solar Fluid:\u003c\/h4\u003e\n\u003cul\u003e\n\n\u003cli\u003eTemperature range: -14°C ... +160°C.\u003c\/li\u003e\n\n\u003cli\u003eContent: \u003cstrong\u003e30% glycol\u003c\/strong\u003e - 70% water.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch4\u003eAvailable sizes \u003cmeta charset=\"utf-8\"\u003eof Tyfocor L \/ WTF S Diluted Solar Fluid:\u003c\/h4\u003e\n\u003cul\u003e\n\n\u003cli\u003e10-liter container - WTF 10 S - Ref. 8718660813\u003c\/li\u003e\n\n\u003cli\u003e15-liter container - WTF 15 S - Ref. 8718531682\u003c\/li\u003e\n\n\u003cli\u003e20-liter container - WTF 20 S - Ref. 8718660878\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\n\u003cmeta charset=\"utf-8\"\u003eImages may differ from the actual product due to manufacturer updates.\u003c\/p\u003e\n\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and lead times:\u003c\/strong\u003e this item is in stock at our warehouse. Occasionally, depending on the time of year, an error may occur in the stock update. If no units are available at the time of your order, we will order them urgently and immediately inform you of the updated delivery time.\u003c\/p\u003e\n","brand":"Junkers Bosch","offers":[{"title":"10 liters","offer_id":12317518397528,"sku":"PR-8718660813","price":50.5,"currency_code":"EUR","in_stock":true},{"title":"15 liters","offer_id":50031643623768,"sku":"PR-8718531682","price":75.0,"currency_code":"EUR","in_stock":true},{"title":"20 liters","offer_id":12317518430296,"sku":"PR-8718660878","price":96.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/LiquidoSolarTyfocorLWTFS30.webp?v=1727781734"},{"product_id":"liquido-solar-tyfocor-l-wtf-10c-concentrado","title":"Tyfocor L \/ WTF 10C solar fluid concentrate","description":"\u003ch3\u003eTyfocor L \/ WTF 10C solar fluid concentrate\u003c\/h3\u003e\n\u003cp\u003eTyfocor L \/ WTF 10C antifreeze solar fluid prevents freezing damage while simultaneously protecting against corrosion in solar thermal, heating, or air conditioning installations and heat pump systems.\u003c\/p\u003e\n\u003cp\u003eTyfocor L \/ WTF 10C solar fluid is biodegradable, food-safe, and does not attack standard gasket materials used in heating installations.\u003c\/p\u003e\n\u003ch4\u003eFeatures of Tyfocor L \/ WTF 10C solar fluid concentrate:\u003c\/h4\u003e\n\u003cul\u003e\n\n\u003cli\u003eTemperature range: -50°C ... +150°C.\u003c\/li\u003e\n\n\u003cli\u003eContent: \u003cstrong\u003e100% glycol\u003c\/strong\u003e. \u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch4\u003eAvailable sizes \u003cmeta charset=\"utf-8\"\u003eof Tyfocor L \/ WTF 10C solar fluid concentrate:\u003c\/h4\u003e\n\u003cul\u003e\n\n\u003cli\u003e10-liter container - Ref. 8718660950\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eImages may differ from the actual product due to manufacturer updates.\u003c\/p\u003e","brand":"Junkers Bosch","offers":[{"title":"Default Title","offer_id":12317925539928,"sku":"PR-8718660950","price":135.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/LiquidoSolarTyfocorLWTFCConcentrado.webp?v=1727780305"},{"product_id":"vaso-expansion-solar-solarwave-likitech","title":"SolarWave steel solar expansion vessel by Global Water Solutions","description":"\u003ch2\u003eSteel solar expansion vessel for your 130 °C solar loop\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSolarWave expansion vessel\u003c\/strong\u003e from Global Water Solutions absorbs the expansion of the solar fluid and keeps the primary circuit pressure stable. Q-Tech fits it into your \u003cstrong\u003epre-assembled plant room\u003c\/strong\u003e, next to the solar pump station and tested in our workshop.\u003c\/p\u003e\n\u003ch3\u003eSummary\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eType\u003c\/th\u003e\u003ctd\u003eSteel expansion vessel with fixed diaphragm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBrand and model\u003c\/th\u003e\u003ctd\u003eGlobal Water Solutions SolarWave, from SWB-8LX to SWB-100LV\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eUse\u003c\/th\u003e\u003ctd\u003eClosed primary circuit of indirect solar thermal systems\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaximum pressure\u003c\/th\u003e\u003ctd\u003e10 bar\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eOperating temperature\u003c\/th\u003e\u003ctd\u003eFrom −10 °C (do not freeze) to 130 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eFormats\u003c\/th\u003e\u003ctd\u003eInline (8 to 35 L) and vertical with base (60 to 100 L)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConnection\u003c\/th\u003e\u003ctd\u003e¾\" BSPT male (8 to 80 L) or 1\" BSPP female (100 L)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eQ-Tech installation\u003c\/th\u003e\u003ctd\u003e\u003ca href=\"\/en-en\/products\/tecnico-experto-pre-montaje-nave\"\u003eAssembled and tested in our workshop\u003c\/a\u003e with the rest of your plant room\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eWhat is the SolarWave?\u003c\/h3\u003e\n\u003cp\u003eThe SolarWave from Global Water Solutions is a steel expansion vessel for \u003cstrong\u003eclosed solar thermal circuits\u003c\/strong\u003e, with a fixed high-temperature butyl diaphragm. It handles \u003cstrong\u003e10 bar and up to 130 °C\u003c\/strong\u003e. It goes in the primary circuit, on the suction or the discharge side of the pump.\u003c\/p\u003e\n\u003ch3\u003eWhat problem does it solve?\u003c\/h3\u003e\n\u003cp\u003eThe fluid in solar collectors expands strongly when it heats up, especially on sunny days with no hot water demand. Without a vessel to take up that volume, the pressure rises and the safety valve discharges fluid. You then have to refill the circuit and check the antifreeze.\u003c\/p\u003e\n\u003cp\u003eA heating vessel cannot withstand those temperatures, and an undersized vessel causes the same discharges. The SolarWave comes \u003cstrong\u003efrom 8 to 100 litres\u003c\/strong\u003e, with a high-temperature diaphragm and a 1.9 bar factory pre-charge.\u003c\/p\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eManufacturer\u003c\/th\u003e\u003ctd\u003eGlobal Water Solutions\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eSeries\u003c\/th\u003e\u003ctd\u003eSolarWave\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eShell\u003c\/th\u003e\u003ctd\u003eSteel with dual-layer polyurethane paint, white colour\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eDiaphragm\u003c\/th\u003e\u003ctd\u003eHigh-temperature butyl, fixed\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eWater connection\u003c\/th\u003e\u003ctd\u003eStainless steel, patented\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eAir valve\u003c\/th\u003e\u003ctd\u003eCap sealed with an O-ring\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBase\u003c\/th\u003e\u003ctd\u003eReplaceable on vertical models; slip-on on 60 and 80 L\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaximum working pressure\u003c\/th\u003e\u003ctd\u003e10 bar\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eFactory pre-charge\u003c\/th\u003e\u003ctd\u003e1.9 bar\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eOperating temperature\u003c\/th\u003e\u003ctd\u003eFrom −10 °C (avoid freezing) to 130 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eAntifreeze\u003c\/th\u003e\u003ctd\u003ePropylene glycol up to 50%; the manufacturer advises avoiding ethylene glycol\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eQuality\u003c\/th\u003e\u003ctd\u003eManufactured under ISO 9001:2015, according to the manufacturer\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eModels and data by variant\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eModel\u003c\/th\u003e\u003cth\u003eFormat\u003c\/th\u003e\u003cth\u003eVolume\u003c\/th\u003e\u003cth\u003eConnection\u003c\/th\u003e\u003cth\u003eHeight\u003c\/th\u003e\u003cth\u003eDiameter\u003c\/th\u003e\u003cth\u003eGross weight\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eSWB-8LX\u003c\/th\u003e\u003ctd\u003eInline\u003c\/td\u003e\u003ctd\u003e8 L\u003c\/td\u003e\u003ctd\u003e¾\" BSPT\u003c\/td\u003e\u003ctd\u003e308 mm\u003c\/td\u003e\u003ctd\u003e202 mm\u003c\/td\u003e\u003ctd\u003e2.2 kg\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eSWB-12LX\u003c\/th\u003e\u003ctd\u003eInline\u003c\/td\u003e\u003ctd\u003e12 L\u003c\/td\u003e\u003ctd\u003e¾\" BSPT\u003c\/td\u003e\u003ctd\u003e362 mm\u003c\/td\u003e\u003ctd\u003e230 mm\u003c\/td\u003e\u003ctd\u003e3.0 kg\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eSWB-18LX\u003c\/th\u003e\u003ctd\u003eInline\u003c\/td\u003e\u003ctd\u003e18 L\u003c\/td\u003e\u003ctd\u003e¾\" BSPT\u003c\/td\u003e\u003ctd\u003e362 mm\u003c\/td\u003e\u003ctd\u003e279 mm\u003c\/td\u003e\u003ctd\u003e3.9 kg\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eSWB-24LX\u003c\/th\u003e\u003ctd\u003eInline\u003c\/td\u003e\u003ctd\u003e24 L\u003c\/td\u003e\u003ctd\u003e¾\" BSPT\u003c\/td\u003e\u003ctd\u003e442 mm\u003c\/td\u003e\u003ctd\u003e290 mm\u003c\/td\u003e\u003ctd\u003e5.1 kg\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eSWB-35LX\u003c\/th\u003e\u003ctd\u003eInline\u003c\/td\u003e\u003ctd\u003e35 L\u003c\/td\u003e\u003ctd\u003e¾\" BSPT\u003c\/td\u003e\u003ctd\u003e476 mm\u003c\/td\u003e\u003ctd\u003e318 mm\u003c\/td\u003e\u003ctd\u003e6.8 kg\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eSWB-60LV\u003c\/th\u003e\u003ctd\u003eVertical\u003c\/td\u003e\u003ctd\u003e60 L\u003c\/td\u003e\u003ctd\u003e¾\" BSPT\u003c\/td\u003e\u003ctd\u003e575 mm\u003c\/td\u003e\u003ctd\u003e398 mm\u003c\/td\u003e\u003ctd\u003e11.0 kg\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eSWB-80LV\u003c\/th\u003e\u003ctd\u003eVertical\u003c\/td\u003e\u003ctd\u003e80 L\u003c\/td\u003e\u003ctd\u003e¾\" BSPT\u003c\/td\u003e\u003ctd\u003e815 mm\u003c\/td\u003e\u003ctd\u003e389 mm\u003c\/td\u003e\u003ctd\u003e14.3 kg\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eSWB-100LV\u003c\/th\u003e\u003ctd\u003eVertical\u003c\/td\u003e\u003ctd\u003e100 L\u003c\/td\u003e\u003ctd\u003e1\" BSPP\u003c\/td\u003e\u003ctd\u003e850 mm\u003c\/td\u003e\u003ctd\u003e430 mm\u003c\/td\u003e\u003ctd\u003e19.2 kg\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eCompatibility and limits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eClosed solar circuits only\u003c\/strong\u003e: the manufacturer restricts it to indirect systems with no drinking water.\u003c\/li\u003e\n\u003cli\u003eUp to 10 bar and 130 °C; minimum −10 °C, do not freeze.\u003c\/li\u003e\n\u003cli\u003eIf the fluid can exceed its evaporation point, the manufacturer requires a heat dissipator or condenser between collector and vessel.\u003c\/li\u003e\n\u003cli\u003eAntifreeze: propylene glycol up to 50%, never ethylene glycol.\u003c\/li\u003e\n\u003cli\u003eAlways fit a safety valve and stay within the working limits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen this product is not the right choice\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eProduct\u003c\/th\u003e\u003cth\u003eWhen to choose it\u003c\/th\u003e\u003cth\u003eMaximum pressure\u003c\/th\u003e\u003cth\u003eMaximum temperature\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003e\u003ca href=\"\/en-en\/products\/deposito-de-expansion-calefaccion-heatwave-de-likitech\"\u003eHeatWave\u003c\/a\u003e\u003c\/th\u003e\u003ctd\u003eClosed-loop water heating\u003c\/td\u003e\u003ctd\u003e6 bar\u003c\/td\u003e\u003ctd\u003e99 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003e\u003ca href=\"\/en-en\/products\/vaso-de-expansion-acs-thermowave-de-likitech\"\u003eThermoWave\u003c\/a\u003e\u003c\/th\u003e\u003ctd\u003eDomestic hot water (DHW), with a liner suitable for drinking water\u003c\/td\u003e\u003ctd\u003e10 bar\u003c\/td\u003e\u003ctd\u003e90 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eTo compare with other brands, see the \u003ca href=\"\/en-en\/collections\/vasos-de-expasion-y-acumuladores-hidroneumaticos\"\u003eExpansion vessels and pressure tanks\u003c\/a\u003e collection.\u003c\/p\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs it suitable for domestic hot water?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The SolarWave is for the closed solar primary circuit only. For DHW, choose the ThermoWave.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat volume do I need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt depends on the fluid volume of the system, the collectors and the maximum temperature. We help you size it in a \u003ca href=\"\/en-en\/products\/tecnico-experto-llamada-tecnica\"\u003etechnical call\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich antifreeze can I use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePropylene glycol up to 50%. The manufacturer advises always avoiding ethylene glycol.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to adjust the pre-charge?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, if your system does not work at 1.9 bar. Adjust it with the vessel empty, following the manufacturer's manual linked below.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe have it \u003cstrong\u003ein stock at our warehouse\u003c\/strong\u003e. If no units were left, we would order it urgently and tell you the lead time.\u003c\/p\u003e\n\u003ch3\u003eQ-Tech installation and support\u003c\/h3\u003e\n\u003cp\u003eQ-Tech mounts the SolarWave in your \u003cstrong\u003epre-assembled plant room, tested in our workshop\u003c\/strong\u003e with the solar station and the storage tank: it reaches the site \u003cstrong\u003eready to connect\u003c\/strong\u003e. More information at \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003eAdvanced Pre-Assembly\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eIf your solar system is already installed, book the \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site hourly Expert Technician\u003c\/a\u003e or a \u003ca href=\"\/en-en\/products\/tecnico-experto-llamada-tecnica\"\u003etechnical call\u003c\/a\u003e. More equipment in \u003ca href=\"\/en-en\/collections\/vasos-de-expasion-y-acumuladores-hidroneumaticos\"\u003eExpansion vessels and pressure tanks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.globalwatersolutions.com\/media\/wysiwyg\/Resources\/Manual_PressureTanks_ES.pdf\" target=\"_blank\" rel=\"noopener\"\u003eGlobal Water Solutions vessel installation manual (multilingual, includes English)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.globalwatersolutions.com\/in\/solarwave-24-liter-inline-steel-solar-expansion-tank-10-bar-3-4-inch-bspt-male-swb-24lx.html\" target=\"_blank\" rel=\"noopener\"\u003eSolarWave page on the manufacturer's website\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/www.youtube-nocookie.com\/embed\/uHt2M8gDZbg\" title=\"Global Water Solutions: how to check a vessel's pre-charge (brand video)\" width=\"560\" height=\"315\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and lead times:\u003c\/strong\u003e this item is in stock at our warehouse. Occasionally, depending on the time of year, the stock update may contain an error. If no units are available when you place your order, we will order it urgently and inform you immediately of the updated delivery time.\u003c\/p\u003e","brand":"Global Water Solutions","offers":[{"title":"Inline \/ SWB-8LX","offer_id":19640436228184,"sku":"BA-99883","price":45.26,"currency_code":"EUR","in_stock":true},{"title":"Inline \/ SWB-12LX","offer_id":19640446287960,"sku":"BA-99884","price":55.12,"currency_code":"EUR","in_stock":true},{"title":"Inline \/ SWB-18LX","offer_id":19640446320728,"sku":"BA-99885","price":61.03,"currency_code":"EUR","in_stock":true},{"title":"Inline \/ SWB-24LX","offer_id":19640446353496,"sku":"BA-99886","price":67.13,"currency_code":"EUR","in_stock":true},{"title":"Inline \/ SWB-35LX","offer_id":19640446386264,"sku":"BA-99887","price":104.0,"currency_code":"EUR","in_stock":true},{"title":"Vertical \/ SWB-60LV","offer_id":19640446419032,"sku":"BA-99888","price":184.73,"currency_code":"EUR","in_stock":true},{"title":"Vertical \/ SWB-80LV","offer_id":19640446451800,"sku":"BA-99889","price":189.1,"currency_code":"EUR","in_stock":true},{"title":"Vertical \/ SWB-100LV","offer_id":19640446484568,"sku":"BA-99890","price":289.69,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/global-water-solutions-solarwave-swb-24lx-frontal.webp?v=1794241146"},{"product_id":"bomba-circuladora-yonos-varios-pico-stg-de-wilo","title":"WILO YONOS Varios Pico-STG circulator pump","description":"\u003ch3\u003eYONOS Varios Pico-STG by WILO\u003c\/h3\u003e\n\u003ch3\u003eWilo-Varios PICO-STG high-efficiency pump with electronic control.\u003cbr\u003e\n\n\u003c\/h3\u003e\n\u003cp\u003eMaintenance-free wet rotor circulation pump with threaded connection, equipped with a block-resistant synchronous motor with ECM technology and integrated electronic power control for continuous differential pressure control. \u003cspan style=\"text-decoration: underline;\"\u003eSuitable for all heating and air conditioning applications\u003c\/span\u003e, as well as solar and geothermal systems.\u003c\/p\u003e\n\u003cp\u003eStandard with:\u003c\/p\u003e\n\u003cp\u003e- Preselectable control modes for optimal load adjustment\u003c\/p\u003e\n\u003cdiv style=\"padding-left: 30px;\"\u003e* Constant differential pressure (Δp-c), 3 preset characteristic curves\u003c\/div\u003e\n\u003cdiv style=\"padding-left: 30px;\"\u003e* Variable differential pressure (Δp-v), 3 preset characteristic curves\u003c\/div\u003e\n\u003cdiv style=\"padding-left: 30px;\"\u003e* Constant speed (3 speeds)\u003c\/div\u003e\n\u003cdiv style=\"padding-left: 30px;\"\u003e* External control via iPWM GT signal (heating\/geothermal) or iPWM ST (solar)\u003c\/div\u003e\n\u003cp\u003e- Synchronization function (manual programming mode) to modify the pump programming in case of replacement\u003c\/p\u003e\n\u003cp\u003e- Manual pump ventilation function for purging the motor compartment\u003c\/p\u003e\n\u003cp\u003e- Manual reset\u003c\/p\u003e\n\u003cp\u003eLED indicator\u003c\/p\u003e\n\u003cdiv style=\"padding-left: 30px;\"\u003e* Indication of the selected control mode and characteristic curve\u003c\/div\u003e\n\u003cdiv style=\"padding-left: 30px;\"\u003e* Indication of the status during purging and manual restart\u003c\/div\u003e\n\u003cdiv style=\"padding-left: 30px;\"\u003e* LED coding during the synchronization function\u003c\/div\u003e\n\u003cdiv style=\"padding-left: 30px;\"\u003e* Indication of operation and faults\u003c\/div\u003e\n\u003cp\u003e- Integrated motor protection\u003c\/p\u003e\n\u003cp\u003e- Automatic unblocking function\u003c\/p\u003e\n\u003cp\u003e- Electrical connection cable with 3-pin plug and Wilo connector\u003c\/p\u003e\n\u003cp\u003e- PWM connection\u003c\/p\u003e\n\u003cp\u003e- Pump housing with cataphoresis coating\u003c\/p\u003e\n\u003ch3\u003eApplication of the Wilo Yonos Varios Pico-STG:\u003c\/h3\u003e\n\u003cp\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003eSuitable for all heating and air conditioning applications\u003c\/span\u003e\n\u003cspan\u003e, as well as solar and geothermal systems.\u003c\/span\u003e\n\u003c\/p\u003e\n\u003ch3\u003eOperating data of the Wilo Yonos Varios Pico-STG circulation pump:\u003c\/h3\u003e\n\u003cp\u003e\n\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/Captura_de_pantalla_2021-09-16_a_las_11.42.28_480x480.png?v=1631785381\"\u003e\n\u003c\/p\u003e\n\u003ch3\u003eMotor data of the Wilo Yonos Varios Pico-STG circulation pump:\u003c\/h3\u003e\n\u003cp\u003e\n\u003cimg alt=\"Wilo Varios PICO-STG Pump\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/Captura_de_pantalla_2021-09-16_a_las_11.43.31_480x480.png?v=1631785427\"\u003e\n\u003c\/p\u003e\n\u003ch3\u003eMaterials of the Wilo Yonos Varios Pico-STG circulation pump:\u003c\/h3\u003e\n\u003cp\u003e    •    Pump housing: Cast iron\u003cbr\u003e    •    Impeller: Plastic (PP, 40% GF) \u003cbr\u003e    •    Pump shaft: Stainless steel \u003cbr\u003e    •    Bearing: Carbon, metal-impregnated\u003c\/p\u003e\n\u003ch3\u003eDimensions of the Wilo Yonos Varios Pico-STG circulation pump:\u003c\/h3\u003e\n\u003cp\u003e\n\u003cimg alt=\"Wilo Varios Pico-STG Pump Dimensions\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/Captura_de_pantalla_2021-09-16_a_las_11.44.50_480x480.png?v=1631785547\"\u003e\n\u003c\/p\u003e\n\u003ch3\u003eScope of delivery of the Wilo Yonos Varios Pico-STG circulation pump:\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003ePump\u003c\/li\u003e\n\n\u003cli\u003eCable with 3-pin plug for pump and connection for Wilo connector\u003c\/li\u003e\n\n\u003cli\u003eWilo connector\u003c\/li\u003e\n\n\u003cli\u003eGaskets\u003c\/li\u003e\n\n\u003cli\u003eInstallation and operation instructions\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eDocumentation of the Wilo Yonos Varios Pico-STG circulation pump:\u003c\/h3\u003e\n\u003cp\u003e\n\u003ca href=\"https:\/\/cms.media.wilo.com\/dcidocpfinder\/wilo252500\/3726523\/wilo252500.pdf\" title=\"Wilo Varios SPG Installation and Operation Instructions\" target=\"_blank\"\u003eDownload Installation and Operation Instructions Manual\u003c\/a\u003e\n\u003c\/p\u003e\n\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and delivery times:\u003c\/strong\u003e this item is in stock in our warehouse. Occasionally, depending on the time of year, an error may occur in the stock update. If no units are available at the time of your order, we will order it urgently and inform you immediately of the updated delivery time.\u003c\/p\u003e\n","brand":"Wilo","offers":[{"title":"Several PICO STG 15\/1-8 130mm Ref. 4232742","offer_id":30927685025930,"sku":"SE-AC51960","price":471.9,"currency_code":"EUR","in_stock":true},{"title":"Several PICO STG 15\/1-13 130mm Ref. 4232746","offer_id":30927685058698,"sku":"SE-AC51964","price":489.49,"currency_code":"EUR","in_stock":true},{"title":"Several PICO-STG 15\/1-13 180mm Ref. 4232747","offer_id":41138493292697,"sku":"SE-AC51963","price":508.2,"currency_code":"EUR","in_stock":true},{"title":"Several PICO-STG 25\/1-8 180mm Ref. 4232743","offer_id":41138525569177,"sku":"SE-AC51961","price":505.0,"currency_code":"EUR","in_stock":true},{"title":"Several PICO-STG 30\/1-8 180mm Ref. 4232745","offer_id":41138527305881,"sku":"SE-AC51962","price":505.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/wilo-yonos-varios-pico-stg-de-wilo-varios-pico-stg-15-1-8-130mm-ref-4232742-52965578047832.jpg?v=1702916288"},{"product_id":"vaso-expansion-solar-smf-ibaiondo-130c","title":"Ibaiondo SMF fixed-membrane expansion vessel for solar thermal systems","description":"\u003ch2\u003eSolar expansion vessel with a membrane that withstands 130 °C peaks for one hour\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eIbaiondo SMF expansion vessel\u003c\/strong\u003e absorbs the expansion of the fluid in your closed solar thermal circuit. Its membrane withstands \u003cstrong\u003epeaks of 130 °C for one hour\u003c\/strong\u003e and accepts antifreeze up to 50%. At Q-Tech we fit it into your pre-assembled plant room, connected and tested with the rest of the solar circuit.\u003c\/p\u003e\u003ch3\u003eSummary\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\u003cth\u003eType\u003c\/th\u003e\u003ctd\u003eFixed-membrane expansion vessel for solar thermal systems\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eBrand and model\u003c\/th\u003e\u003ctd\u003eIbaiondo SMF\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eUse\u003c\/th\u003e\u003ctd\u003eClosed solar energy systems\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eCapacities\u003c\/th\u003e\u003ctd\u003e8, 12, 18 and 24 litres\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eMaximum working pressure\u003c\/th\u003e\u003ctd\u003e10 bar; 8 bar on the 24-litre model\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eCompatible with\u003c\/th\u003e\u003ctd\u003eWater with antifreeze up to 50%\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eFactory pre-charge\u003c\/th\u003e\u003ctd\u003e2.5 bar, with air\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eManufacturer's warranty\u003c\/th\u003e\u003ctd\u003e3 years\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eQ-Tech installation\u003c\/th\u003e\u003ctd\u003eConnection and adjustment by an \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site hourly Expert Technician\u003c\/a\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eWhat is the Ibaiondo SMF?\u003c\/h3\u003e\u003cp\u003eThe Ibaiondo SMF is a fixed-membrane expansion vessel for \u003cstrong\u003eclosed solar energy systems\u003c\/strong\u003e that withstands peaks of 130 °C for one hour. A membrane separates the fluid from an air chamber. It is mounted without feet, on an R ¾\" thread.\u003c\/p\u003e\u003ch3\u003eWhat problem does it solve?\u003c\/h3\u003e\u003cp\u003eThe fluid in your solar circuit takes up more volume as it heats. Without an expansion vessel, pressure rises and fluid escapes through the safety valve. A solar circuit also sees temperature peaks, and Ibaiondo builds the SMF with a \u003cstrong\u003especial membrane for those peaks\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eA vessel designed for heating does not declare that resistance. Ibaiondo also recommends fitting a VI intermediate vessel, which dissipates heat before the expansion vessel. Its catalogue specifies it when the return can exceed 100 °C.\u003c\/p\u003e\u003ch3\u003eTechnical data\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\u003cth\u003eApplication\u003c\/th\u003e\u003ctd\u003eClosed solar energy systems\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eMembrane\u003c\/th\u003e\u003ctd\u003eFixed, non-replaceable; withstands peaks of 130 °C for one hour\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eBody material\u003c\/th\u003e\u003ctd\u003eSteel\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eFinish\u003c\/th\u003e\u003ctd\u003eWhite epoxy paint, RAL 9016\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eFactory pre-charge\u003c\/th\u003e\u003ctd\u003e2.5 bar, with air; with inflation valve\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eMinimum temperature\u003c\/th\u003e\u003ctd\u003e−10 °C\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eMaximum system temperature\u003c\/th\u003e\u003ctd\u003e100 °C\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eAntifreeze\u003c\/th\u003e\u003ctd\u003eUp to 50%\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eWater connection\u003c\/th\u003e\u003ctd\u003eR ¾\" galvanised steel thread\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eTest pressure\u003c\/th\u003e\u003ctd\u003e12 to 15 bar, depending on the maximum pressure\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eStandards\u003c\/th\u003e\u003ctd\u003eManufactured in accordance with the Pressure Equipment Directive 2014\/68\/EU\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eMade in\u003c\/th\u003e\u003ctd\u003eSpain\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eModels and data by variant\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\u003cth\u003eModel\u003c\/th\u003e\u003cth\u003eCapacity\u003c\/th\u003e\u003cth\u003eMaximum pressure\u003c\/th\u003e\u003cth\u003eDiameter\u003c\/th\u003e\u003cth\u003eHeight\u003c\/th\u003e\u003cth\u003eConnection\u003c\/th\u003e\u003cth\u003eWeight\u003c\/th\u003e\u003cth\u003eReference\u003c\/th\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003e8 SMF\u003c\/th\u003e\u003ctd\u003e8 litres\u003c\/td\u003e\u003ctd\u003e10 bar\u003c\/td\u003e\u003ctd\u003e200 mm\u003c\/td\u003e\u003ctd\u003e340 mm\u003c\/td\u003e\u003ctd\u003eR ¾\"\u003c\/td\u003e\u003ctd\u003e2.5 kg\u003c\/td\u003e\u003ctd\u003e02008070\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003e12 SMF\u003c\/th\u003e\u003ctd\u003e12 litres\u003c\/td\u003e\u003ctd\u003e10 bar\u003c\/td\u003e\u003ctd\u003e270 mm\u003c\/td\u003e\u003ctd\u003e310 mm\u003c\/td\u003e\u003ctd\u003eR ¾\"\u003c\/td\u003e\u003ctd\u003e3.2 kg\u003c\/td\u003e\u003ctd\u003e02012070\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003e18 SMF\u003c\/th\u003e\u003ctd\u003e18 litres\u003c\/td\u003e\u003ctd\u003e10 bar\u003c\/td\u003e\u003ctd\u003e270 mm\u003c\/td\u003e\u003ctd\u003e415 mm\u003c\/td\u003e\u003ctd\u003eR ¾\"\u003c\/td\u003e\u003ctd\u003e4 kg\u003c\/td\u003e\u003ctd\u003e02018070\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003e24 SMF\u003c\/th\u003e\u003ctd\u003e24 litres\u003c\/td\u003e\u003ctd\u003e8 bar\u003c\/td\u003e\u003ctd\u003e320 mm\u003c\/td\u003e\u003ctd\u003e430 mm\u003c\/td\u003e\u003ctd\u003eR ¾\"\u003c\/td\u003e\u003ctd\u003e4.5 kg\u003c\/td\u003e\u003ctd\u003e02024070\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eCompatibility and limits\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eThe Ibaiondo SMF is intended for closed solar energy systems.\u003c\/li\u003e\u003cli\u003eThe \u003cstrong\u003emaximum pressure is 10 bar\u003c\/strong\u003e, and 8 bar on the 24 SMF.\u003c\/li\u003e\u003cli\u003eThe factory pre-charge is 2.5 bar.\u003c\/li\u003e\u003cli\u003eIt accepts antifreeze mixtures up to 50%.\u003c\/li\u003e\u003cli\u003eThe membrane is fixed and cannot be replaced.\u003c\/li\u003e\u003cli\u003eIbaiondo recommends fitting a VI intermediate vessel as a heat dissipater.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eWhen this product is not the right choice\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\u003cth\u003eProduct\u003c\/th\u003e\u003cth\u003eWhen to choose it\u003c\/th\u003e\u003cth\u003eMembrane\u003c\/th\u003e\u003cth\u003eMaximum pressure\u003c\/th\u003e\u003cth\u003eFactory pre-charge\u003c\/th\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003e\u003ca href=\"\/en-en\/products\/vaso-de-expansion-para-energia-solar-modelo-smr-de-ibaiondo\"\u003eIbaiondo SMR\u003c\/a\u003e\u003c\/th\u003e\u003ctd\u003eYour solar circuit needs 35 to 200 litres or a replaceable membrane\u003c\/td\u003e\u003ctd\u003eReplaceable; peaks of 130 °C for one hour\u003c\/td\u003e\u003ctd\u003e10 bar\u003c\/td\u003e\u003ctd\u003e2.5 bar\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003e\u003ca href=\"\/en-en\/products\/vaso-de-expansion-ibaiondo-cmf-para-calefaccion-1\"\u003eIbaiondo CMF\u003c\/a\u003e\u003c\/th\u003e\u003ctd\u003eYour circuit is a closed heating or cooling circuit\u003c\/td\u003e\u003ctd\u003eFixed\u003c\/td\u003e\u003ctd\u003e4, 5 or 6 bar, depending on the model\u003c\/td\u003e\u003ctd\u003e1.5 bar\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003e\u003ca href=\"\/en-en\/products\/vaso-expansion-acs-cmr-ibaiondo-agua-potable\"\u003eIbaiondo CMR\u003c\/a\u003e\u003c\/th\u003e\u003ctd\u003eYour circuit is domestic hot water\u003c\/td\u003e\u003ctd\u003eSuitable for drinking water\u003c\/td\u003e\u003ctd\u003e10 bar; 8 bar on 24 litres\u003c\/td\u003e\u003ctd\u003e3 bar\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhich Ibaiondo SMF model do I need?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt depends on the fluid volume, temperature and pressure of your solar circuit. With that data we help you choose in a \u003ca href=\"\/en-en\/products\/expert-technician-remote-technical-call\"\u003etechnical call\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt is in stock at our warehouse. If no units are left when you order, we order it urgently and tell you the updated delivery time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it accept antifreeze?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes, up to 50%. Ibaiondo states that the SMF is suitable for antifreeze mixtures up to that proportion.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the membrane be replaced?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNo. The Ibaiondo SMF membrane is fixed. With a replaceable membrane Ibaiondo makes the \u003ca href=\"\/en-en\/products\/vaso-de-expansion-para-energia-solar-modelo-smr-de-ibaiondo\"\u003eSMR solar expansion vessel\u003c\/a\u003e, from 35 litres.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need an intermediate vessel?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIbaiondo recommends it. The VI intermediate vessel dissipates heat before the expansion vessel and protects its membrane.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it differ from the Ibaiondo CMF?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIn membrane and pressure. The SMF withstands 130 °C peaks and works up to 10 bar; the \u003ca href=\"\/en-en\/products\/vaso-de-expansion-ibaiondo-cmf-para-calefaccion-1\"\u003eCMF expansion vessel\u003c\/a\u003e is for heating and cooling.\u003c\/p\u003e\u003ch3\u003eQ-Tech installation and support\u003c\/h3\u003e\u003cp\u003eThe expansion vessel works with the pump station and safety valve of your solar circuit, and its air pressure is set to suit your installation. Q-Tech delivers it inside a \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003epre-assembled plant room\u003c\/a\u003e: assembled, wired and tested in our workshop, arriving on site \u003cstrong\u003eready to connect\u003c\/strong\u003e. You book it with the \u003ca href=\"\/en-en\/products\/tecnico-experto-pre-montaje-nave\"\u003eTécnico Experto workshop pre-assembly\u003c\/a\u003e service.\u003c\/p\u003e\u003cp\u003eIf your installation already exists, an \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site hourly Expert Technician\u003c\/a\u003e connects the Ibaiondo SMF and checks its pressure. You can see the full range in \u003ca href=\"\/en-en\/collections\/vasos-expansion-ibaiondo\"\u003eIbaiondo expansion vessels\u003c\/a\u003e or write to us on \u003ca href=\"https:\/\/wa.me\/qtechhouses\" target=\"_blank\" rel=\"noopener\"\u003eWhatsApp\u003c\/a\u003e or from \u003ca href=\"\/en-en\/pages\/contacto\"\u003econtact\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eDocumentation\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/www.ibaiondo.com\/wp-content\/uploads\/sites\/250\/2026\/01\/FT-SMF-SIN-PATAS-280225-R3.pdf\" target=\"_blank\" rel=\"noopener\"\u003eIbaiondo SMF data sheet, models without feet (in Spanish)\u003c\/a\u003e\u003c\/li\u003e\u003cli\u003e\u003ca href=\"https:\/\/www.ibaiondo.com\/wp-content\/uploads\/sites\/250\/2019\/08\/manual-instrucciones-2-24-smf.pdf\" target=\"_blank\" rel=\"noopener\"\u003eIbaiondo SMF instruction manual, 2 to 24 litres (in Spanish)\u003c\/a\u003e\u003c\/li\u003e\u003cli\u003e\u003ca href=\"https:\/\/www.ibaiondo.com\/wp-content\/uploads\/sites\/250\/2025\/06\/Declaracion-Vasos-de-expansion-Abril-2025.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDeclaration of conformity for Ibaiondo expansion vessels (in Spanish)\u003c\/a\u003e\u003c\/li\u003e\u003cli\u003e\u003ca href=\"https:\/\/www.ibaiondo.com\/wp-content\/uploads\/sites\/250\/2026\/04\/CATALOGO-IBAIONDO-2026.pdf\" target=\"_blank\" rel=\"noopener\"\u003eIbaiondo 2026 catalogue (in Spanish)\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and lead times:\u003c\/strong\u003e this item is in stock at our warehouse. Occasionally, depending on the time of year, the stock update may contain an error. If no units are available when you place your order, we will order it urgently and inform you immediately of the updated delivery time.\u003c\/p\u003e","brand":"Ibaiondo","offers":[{"title":"8 SMF · 8 litres","offer_id":30927893332106,"sku":"BA-58153","price":29.26,"currency_code":"EUR","in_stock":true},{"title":"12 SMF · 12 litres","offer_id":30927893364874,"sku":"BA-58548","price":30.48,"currency_code":"EUR","in_stock":true},{"title":"18 SMF · 18 litres","offer_id":30927893397642,"sku":"BA-65210","price":37.29,"currency_code":"EUR","in_stock":true},{"title":"24 SMF · 24 litres","offer_id":30927893430410,"sku":"BA-59152","price":40.17,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/ibaiondo-smf-vaso-expansion-solar-membrana-fija-vista-frontal.webp?v=1794322708"},{"product_id":"alpha-solar","title":"ALPHA Solar","description":"\u003ch3\u003eGrundfos ALPHA SOLAR circulator pump for a highly efficient solar water system.\u003c\/h3\u003e\n\u003cp\u003eALPHA SOLAR is a circulator pump designed for solar thermal systems. It features three constant curve modes, and the speed can also be controlled using a low-voltage PWM signal from a solar controller.\u003c\/p\u003e\n\u003cp\u003eGrundfos ALPHA SOLAR offers very easy installation and low noise levels. This highly efficient and reliable pump is designed to be maintenance-free, with durable ceramic bearings and shaft, as well as corrosion-resistant stainless steel components.\u003c\/p\u003e\n\u003cp\u003e\n\u003cstrong\u003eReliable and highly efficient\u003c\/strong\u003e\n\u003cbr\u003eThe PWM signal generates an analog signal using a digital source to control the pump speed and performance, optimize solar energy collection, and ensure minimum energy consumption.\u003c\/p\u003e\n\u003cp\u003e\n\u003cstrong\u003eEasy access\u003c\/strong\u003e\n\u003cbr\u003eA manual release screw is accessible from the front of the pump.\u003c\/p\u003e\n\u003cp\u003e\n\u003cstrong\u003eRemote troubleshooting\u003c\/strong\u003e\n\u003cbr\u003eA dry-running warning is available as a PWM feedback signal.\u003c\/p\u003e\n\u003cp\u003e\n\u003cstrong\u003eEasy handling\u003c\/strong\u003e\n\u003cbr\u003eVery easy installation, low noise levels, and maintenance-free.\u003c\/p\u003e\n\u003ch4\u003eTechnical specifications of the Grundfos Alpha solar electronic circulator pump:\u003c\/h4\u003e\n\u003cp\u003e- Liquid temperature: +2°C to +130°C at 60°C ambient temperature \/ \u003cmeta charset=\"UTF-8\"\u003e\n\u003cspan\u003e+2°C to +110°C at 70°C ambient temperature\u003c\/span\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n\u003cspan\u003e- Ambient temperature: 0°C to +70°C\u003c\/span\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n\u003cspan\u003e- Maximum relative air humidity: 95%\u003c\/span\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n\u003cspan\u003e- System pressure: Maximum 1.0 MPa (10 bar)\u003c\/span\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n\u003cspan\u003e- Minimum inlet pressure: 0.05 MPa (0.50 bar) at 95°C liquid temperature.\u003c\/span\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n\u003cspan\u003e- Protection class: IPX4D\u003c\/span\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n\u003cspan\u003e- Insulation class: F\u003c\/span\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n\u003cspan\u003e- Sound pressure level: \u0026lt;43 dB(A)\u003c\/span\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n\u003cspan\u003e- Supply voltage: 1x230 V +10%\/-15%, 50Hz\u003c\/span\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n\u003cspan\u003e- Motor protection: No external \u003c\/span\u003e\n\u003cspan\u003emotor protection required.\u003c\/span\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n\u003cspan\u003e- Power cable: 1m without plug\u003c\/span\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n\u003cspan\u003e- External monitoring option: PWM profile C\u003c\/span\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n\u003cspan\u003e- Supply: Gaskets (without fittings) and 1m PWM signal cable\u003c\/span\u003e\n\u003c\/p\u003e\n\u003cul\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDocumentation for the \u003cmeta charset=\"utf-8\"\u003eGrundfos Alpha solar electronic circulator pump:\u003c\/h3\u003e\n\u003cp\u003e\n\u003ca rel=\"noopener noreferrer\" title=\"Grundfos ALPHA SOLAR circulator pump catalog\" href=\"https:\/\/api.grundfos.com\/literature\/Grundfosliterature-6512406.pdf\" target=\"_blank\"\u003eDownload product catalog\u003c\/a\u003e \u003c\/p\u003e\n\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and lead times:\u003c\/strong\u003e this item is in stock at our warehouse. Occasionally, depending on the time of year, an error may occur in the stock update. If no units are available at the time of your order, we will order them urgently and immediately inform you of the updated delivery time.\u003c\/p\u003e\n","brand":"Grundfos","offers":[{"title":"ALPHA Solar 15-75 130mm Ref. 98989298","offer_id":43592828453090,"sku":"SE-AC33540","price":392.0,"currency_code":"EUR","in_stock":true},{"title":"ALPHA Solar 25-75 130mm Ref. 98989299","offer_id":43592828485858,"sku":"SE-AC33541","price":406.0,"currency_code":"EUR","in_stock":true},{"title":"ALPHA Solar 25-75 180mm Ref. 98989300","offer_id":43592828518626,"sku":"SE-AC33542","price":406.0,"currency_code":"EUR","in_stock":true},{"title":"ALPHA Solar 25-145 180mm Ref. 98989297","offer_id":43592828551394,"sku":"SE-AC33543","price":434.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/grundfos-alpha-solar-alpha-solar-15-75-130mm-ref-98989298-53009410752856.jpg?v=1702914463"},{"product_id":"valvula-mezcladora-termostatica-esbe-solar-vts520-altas-temperaturas","title":"ESBE VTS520 thermostatic mixing valve for solar domestic hot water","description":"\u003ch2\u003eESBE VTS520 thermostatic mixing valve for domestic hot water in solar installations\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eESBE VTS520\u003c\/strong\u003e blends hot and cold water to deliver domestic hot water (DHW) between 45 and 65 °C when the cylinder is heated by solar collectors and can reach high temperatures. At Q-Tech we fit it on the DHW outlet of the \u003cstrong\u003epre-assembled plant room\u003c\/strong\u003e, tested in our workshop before it reaches your site.\u003c\/p\u003e\n\u003ch3\u003eSummary\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eType\u003c\/th\u003e\u003ctd\u003e3-way thermostatic mixing valve for domestic hot water\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBrand and model\u003c\/th\u003e\u003ctd\u003eESBE VTS520 series (VTS522)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eUse\u003c\/th\u003e\u003ctd\u003eDHW in solar installations, with or without circulation, according to ESBE\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eSetting range\u003c\/th\u003e\u003ctd\u003e45 to 65 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eWater temperature\u003c\/th\u003e\u003ctd\u003eUp to 110 °C continuously and 120 °C temporarily\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eSafety\u003c\/th\u003e\u003ctd\u003eShuts off the hot water if the cold water supply fails\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eFlow\u003c\/th\u003e\u003ctd\u003eKvs 3.0 to 3.5 m³ per hour\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower supply\u003c\/th\u003e\u003ctd\u003eNone: thermostatic control without electricity\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eQ-Tech installation\u003c\/th\u003e\u003ctd\u003eIntegrated and tested in the \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003eQ-Tech pre-assembled plant room\u003c\/a\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eWhat is the ESBE VTS520?\u003c\/h3\u003e\n\u003cp\u003eThe ESBE VTS520 is a thermostatic mixing valve for domestic hot water in solar installations that accepts \u003cstrong\u003ewater up to 110 °C continuously\u003c\/strong\u003e, according to ESBE. An internal thermostat adjusts the mix without electricity. It is fitted at the outlet of the solar cylinder.\u003c\/p\u003e\n\u003ch3\u003eWhat problem does it solve?\u003c\/h3\u003e\n\u003cp\u003eIn summer, solar collectors can heat the cylinder well above the temperature of use. The VTS520 adds cold water to deliver a \u003cstrong\u003esafe temperature at the taps\u003c\/strong\u003e, from 45 to 65 °C.\u003c\/p\u003e\n\u003cp\u003eIf the cold water fails, the valve \u003cstrong\u003eshuts off the hot water\u003c\/strong\u003e and prevents a scald. A conventional DHW thermostatic valve such as the VTA320 accepts up to 95 °C according to ESBE, which is why the VTS520 is chosen for solar.\u003c\/p\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003ePressure class\u003c\/th\u003e\u003ctd\u003ePN10 (working pressure 1 MPa)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaximum differential pressure\u003c\/th\u003e\u003ctd\u003e0.3 MPa (3 bar) when mixing\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMedia temperature\u003c\/th\u003e\u003ctd\u003e110 °C continuously; 120 °C temporarily\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eTemperature stability\u003c\/th\u003e\u003ctd\u003e±4 °C, with constant pressures, a minimum flow of 9 litres per minute and 10 °C between hot inlet and mixed outlet\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eSafety function\u003c\/th\u003e\u003ctd\u003eHot water shut-off if the cold water fails\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMedia\u003c\/th\u003e\u003ctd\u003eDomestic water, closed systems and water with up to 50% glycol\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConnections\u003c\/th\u003e\u003ctd\u003eExternal thread G (ISO 228-1); adapter version R ¾ (EN 10226-1)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaterial\u003c\/th\u003e\u003ctd\u003eDezincification-resistant brass (DZR)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConformity\u003c\/th\u003e\u003ctd\u003ePressure Equipment Directive (PED), article 4.3; no CE marking\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eModels and data by variant\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eModel\u003c\/th\u003e\u003cth\u003eConnection\u003c\/th\u003e\u003cth\u003eRange\u003c\/th\u003e\u003cth\u003eKvs (m³ per hour)\u003c\/th\u003e\u003cth\u003eNet weight\u003c\/th\u003e\u003cth\u003eReference\u003c\/th\u003e\u003cth\u003eEAN\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTS522\u003c\/td\u003e\u003ctd\u003eG 1 external\u003c\/td\u003e\u003ctd\u003e45 to 65 °C\u003c\/td\u003e\u003ctd\u003e3.2\u003c\/td\u003e\u003ctd\u003e0.86 kg\u003c\/td\u003e\u003ctd\u003e31720100\u003c\/td\u003e\u003ctd\u003e7330193040662\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTS522\u003c\/td\u003e\u003ctd\u003eG 1¼ external\u003c\/td\u003e\u003ctd\u003e45 to 65 °C\u003c\/td\u003e\u003ctd\u003e3.5\u003c\/td\u003e\u003ctd\u003e0.95 kg\u003c\/td\u003e\u003ctd\u003e31720300\u003c\/td\u003e\u003ctd\u003e7330193040686\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTS522 with adapters\u003c\/td\u003e\u003ctd\u003eR ¾ external\u003c\/td\u003e\u003ctd\u003e45 to 65 °C\u003c\/td\u003e\u003ctd\u003e3.0\u003c\/td\u003e\u003ctd\u003e1.22 kg\u003c\/td\u003e\u003ctd\u003e31720500\u003c\/td\u003e\u003ctd\u003e7330193040709\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eCompatibility and limits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe adapter version includes two check valves, one for hot and one for cold water, according to ESBE.\u003c\/li\u003e\n\u003cli\u003eBelow 9 litres per minute, the ±4 °C stability is not guaranteed.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum differential pressure of 3 bar\u003c\/strong\u003e between hot and cold water, according to ESBE.\u003c\/li\u003e\n\u003cli\u003eESBE also makes a 50 to 75 °C VTS522 that is not on this page.\u003c\/li\u003e\n\u003cli\u003eNo CE marking: it is pressure equipment under article 4.3 of the PED.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen this product is not the right choice\u003c\/h3\u003e\n\u003cp\u003eIf the water does not come from solar collectors and stays below 95 °C, the \u003ca href=\"\/en-en\/products\/valvula-mezcladora-termostatica-esbe-vta320-antiescaldaduras\"\u003eESBE VTA320 and VTA520 for domestic hot water\u003c\/a\u003e does the same job with more connection sizes.\u003c\/p\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhich model do I need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt depends on pipe size and flow: G 1 with Kvs 3.2, G 1¼ with Kvs 3.5 or the R ¾ adapter version. Send us your outlets and pipe size and we will tell you the model.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference from the VTA320?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe temperature it accepts. The VTS520 works with water up to 110 °C continuously and the VTA320 up to 95 °C, according to ESBE.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the adapter version include?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe R ¾ adapters and two check valves, one for hot and one for cold water, according to ESBE.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install it myself?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is not advisable: a professional should install it, following ESBE's instructions. Q-Tech delivers it fitted in the plant room or installs it with an Expert Technician.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe have it \u003cstrong\u003ein stock in Málaga\u003c\/strong\u003e and dispatch it as soon as we confirm your order.\u003c\/p\u003e\n\u003ch3\u003eQ-Tech installation and support\u003c\/h3\u003e\n\u003cp\u003eQ-Tech fits the VTS520 at the solar cylinder outlet in the \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003epre-assembled plant room\u003c\/a\u003e: assembled, set and \u003cstrong\u003etested in our workshop\u003c\/strong\u003e, it arrives ready to connect. You can book \u003ca href=\"\/en-en\/products\/tecnico-experto-pre-montaje-nave\"\u003eworkshop pre-assembly\u003c\/a\u003e, an \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site hourly Expert Technician\u003c\/a\u003e or a \u003ca href=\"\/en-en\/products\/expert-technician-remote-technical-call\"\u003etechnical call\u003c\/a\u003e to choose the model. See also our \u003ca href=\"\/en-en\/collections\/solar-termica\"\u003esolar thermal range\u003c\/a\u003e or message us on \u003ca href=\"https:\/\/wa.me\/qtechhouses\" target=\"_blank\" rel=\"noopener\"\u003eWhatsApp\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/6565ABB1459A49C275AF78F970117B1B14FBF03E830D4640D3289ADBA327B751\/fd0de98e523f400a9894f8da2391c944\/pdf\/media\/978fc971646d4b06a9375054f5471a3e\/VTS520_VTS550_en_J_LR.pdf\" target=\"_blank\" rel=\"noopener\"\u003eESBE VTS520 and VTS550 data sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/302A9D47A077CBD4499DCA699E0C3CAE9643FFDB992CE3D8620F4E54CDD0098A\/35c0c87b62a64a529f9c9622e719057e\/pdf\/media\/cf2ec484209a4e24a4eb535d8728fb62\/Anv_VTA500_VTS500_98140345_ver%20F_lr.pdf\" target=\"_blank\" rel=\"noopener\"\u003eVTS520 installation instructions (multilingual)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/59A7BF48D90F8ED7D6082C93E0C30345C215F7EE67D443EE1A7449829EB8F224\/9635b8f047a3442dbd16e9b271f0222f\/pdf\/media\/02320e7f697242ecb9fe58e02c9b90f5\/DoC_VTA300,%20VTA500,%20VTS500_E.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDeclaration of conformity\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/www.youtube-nocookie.com\/embed\/cyTl6X2W-8o\" title=\"ESBE thermostatic mixing valves (official ESBE video)\" width=\"560\" height=\"315\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and lead times:\u003c\/strong\u003e this item is in stock at our warehouse. Occasionally, depending on the time of year, the stock update may contain an error. If no units are available when you place your order, we will order it urgently and inform you immediately of the updated delivery time.\u003c\/p\u003e\n","brand":"ESBE","offers":[{"title":"VTS522 G 1 · 45–65 °C (31720100)","offer_id":47439389622616,"sku":"SE-CO10406","price":303.71,"currency_code":"EUR","in_stock":true},{"title":"VTS522 G 1¼ · 45–65 °C (31720300)","offer_id":47439389655384,"sku":"SE-CO10407","price":317.02,"currency_code":"EUR","in_stock":true},{"title":"VTS522 R ¾ · 45–65 °C with adapters (31720500)","offer_id":47439389688152,"sku":"SE-CO10405","price":364.21,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/esbe-vts522-solar-g1.webp?v=1793792846"},{"product_id":"liquido-solar-tyfocor-ls-wtv-s-diluido","title":"Tyfocor LS solar fluid \/ WTV S diluted","description":"\u003ch3\u003eTyfocor LS \/ WTV S Diluted Solar Fluid\u003c\/h3\u003e\n\u003cp\u003eTyfocor LS \/ WTV S \u003cmeta charset=\"utf-8\"\u003esolar fluid \u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eprevents freeze damage in solar installations while also protecting against corrosion.\u003c\/span\u003e\n\u003c\/p\u003e\n\u003cp\u003eTyfocor LS \/ WTV S \u003cmeta charset=\"utf-8\"\u003esolar fluid \u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eis biodegradable, food-safe, and does not attack the sealing materials commonly used in heating systems.\u003c\/span\u003e\n\u003c\/p\u003e\n\u003ch4\u003eFeatures of Tyfocor LS \/ WTV S Diluted Solar Fluid:\u003c\/h4\u003e\n\u003cul\u003e\n\n\u003cli\u003eTemperature range: -28°C ... +160°C.\u003c\/li\u003e\n\n\u003cli\u003eContents: \u003cstrong\u003e43% glycol\u003c\/strong\u003e - 57% water.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch4\u003eAvailable sizes \u003cmeta charset=\"utf-8\"\u003eof Tyfocor LS \/ WTV S Diluted Solar Fluid:\u003c\/h4\u003e\n\u003cul\u003e\n\n\u003cli\u003e10-liter container - LS WTV 10 S - Ref. \u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003e8718660946\u003c\/span\u003e\n\u003cbr\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e20-liter container - LS WTV 20 S - Ref. \u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003e8718660947\u003c\/span\u003e\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\n\u003cmeta charset=\"utf-8\"\u003eImages may differ from the actual product due to manufacturer updates.\u003c\/p\u003e\n\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and lead times:\u003c\/strong\u003e this item is in stock at our warehouse. Occasionally, depending on the time of year, an error may occur in the stock update. If no units are available at the time of your order, we will order them urgently and immediately inform you of the updated delivery time.\u003c\/p\u003e\n","brand":"Junkers Bosch","offers":[{"title":"10 liters","offer_id":50031867396440,"sku":"PR-8718660946","price":75.5,"currency_code":"EUR","in_stock":true},{"title":"20 liters","offer_id":50031867461976,"sku":"PR-8718660947","price":150.04,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/Liquido_Solar_Tyfocor_LS_WTV_S_43.webp?v=1727784226"},{"product_id":"vaso-de-expansion-para-energia-solar-modelo-smr-de-ibaiondo","title":"Ibaiondo SMR replaceable-membrane expansion vessel for solar thermal systems","description":"\u003ch2\u003eSolar expansion vessel with a replaceable membrane for circuits from 35 to 200 litres\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eIbaiondo SMR expansion vessel\u003c\/strong\u003e absorbs fluid expansion in larger closed solar thermal circuits. Its \u003cstrong\u003ereplaceable membrane withstands 130 °C peaks\u003c\/strong\u003e for one hour. At Q-Tech we fit it into your pre-assembled plant room, connected and tested with the rest of the solar circuit.\u003c\/p\u003e\u003ch3\u003eSummary\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\u003cth\u003eType\u003c\/th\u003e\u003ctd\u003eReplaceable-membrane expansion vessel for solar thermal systems\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eBrand and model\u003c\/th\u003e\u003ctd\u003eIbaiondo SMR-P and SMR\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eUse\u003c\/th\u003e\u003ctd\u003eClosed solar energy systems\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eCapacities\u003c\/th\u003e\u003ctd\u003e35, 50, 80, 100 and 200 litres\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eMaximum working pressure\u003c\/th\u003e\u003ctd\u003e10 bar\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eCompatible with\u003c\/th\u003e\u003ctd\u003eWater with antifreeze up to 50%\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eFactory pre-charge\u003c\/th\u003e\u003ctd\u003e2.5 bar, with air\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eManufacturer's warranty\u003c\/th\u003e\u003ctd\u003e3 years\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eQ-Tech installation\u003c\/th\u003e\u003ctd\u003eConnection and adjustment by an \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site hourly Expert Technician\u003c\/a\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eWhat is the Ibaiondo SMR?\u003c\/h3\u003e\u003cp\u003eThe Ibaiondo SMR is a replaceable-membrane expansion vessel for \u003cstrong\u003eclosed solar energy systems\u003c\/strong\u003e that withstands peaks of 130 °C for one hour. A membrane to EN 13831 separates the fluid from an air chamber. It stands on the floor.\u003c\/p\u003e\u003ch3\u003eWhat problem does it solve?\u003c\/h3\u003e\u003cp\u003eThe fluid in your solar circuit takes up more volume as it heats. Without an expansion vessel, pressure rises and fluid escapes through the safety valve. A solar circuit also sees temperature peaks, and Ibaiondo builds the SMR with a \u003cstrong\u003especial membrane for those peaks\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eIn a large circuit, replacing the whole vessel because of a worn membrane means more draining and dismantling. The Ibaiondo SMR membrane is replaceable. Ibaiondo also recommends fitting a VI intermediate vessel, which dissipates heat before the expansion vessel.\u003c\/p\u003e\u003ch3\u003eTechnical data\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\u003cth\u003eApplication\u003c\/th\u003e\u003ctd\u003eClosed solar energy systems\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eMembrane\u003c\/th\u003e\u003ctd\u003eReplaceable, to EN 13831; withstands peaks of 130 °C for one hour\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eBody material\u003c\/th\u003e\u003ctd\u003eSteel\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eFinish\u003c\/th\u003e\u003ctd\u003eWhite epoxy paint, RAL 9016\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eFactory pre-charge\u003c\/th\u003e\u003ctd\u003e2.5 bar, with air; with inflation valve\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eMinimum temperature\u003c\/th\u003e\u003ctd\u003e−10 °C\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eMaximum system temperature\u003c\/th\u003e\u003ctd\u003e100 °C\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eAntifreeze\u003c\/th\u003e\u003ctd\u003eUp to 50%\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eWater connection\u003c\/th\u003e\u003ctd\u003eR 1\" galvanised steel thread from 35 to 100 litres; R 1½\" galvanised steel on the 220 SMR\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eTop cover\u003c\/th\u003e\u003ctd\u003eR 1\" galvanised steel thread on the 220 SMR\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eTest pressure\u003c\/th\u003e\u003ctd\u003e15 bar\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eStandards\u003c\/th\u003e\u003ctd\u003eManufactured in accordance with the Pressure Equipment Directive 2014\/68\/EU\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003eMade in\u003c\/th\u003e\u003ctd\u003eSpain\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eModels and data by variant\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\u003cth\u003eModel\u003c\/th\u003e\u003cth\u003eCapacity\u003c\/th\u003e\u003cth\u003eMaximum pressure\u003c\/th\u003e\u003cth\u003eDiameter\u003c\/th\u003e\u003cth\u003eHeight\u003c\/th\u003e\u003cth\u003eConnection\u003c\/th\u003e\u003cth\u003eWeight\u003c\/th\u003e\u003cth\u003eMounting\u003c\/th\u003e\u003cth\u003eReference\u003c\/th\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003e35 SMR-P\u003c\/th\u003e\u003ctd\u003e35 litres\u003c\/td\u003e\u003ctd\u003e10 bar\u003c\/td\u003e\u003ctd\u003e360 mm\u003c\/td\u003e\u003ctd\u003e615 mm\u003c\/td\u003e\u003ctd\u003eR 1\"\u003c\/td\u003e\u003ctd\u003e10 kg\u003c\/td\u003e\u003ctd\u003eWith feet\u003c\/td\u003e\u003ctd\u003e01035070\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003e50 SMR-P\u003c\/th\u003e\u003ctd\u003e50 litres\u003c\/td\u003e\u003ctd\u003e10 bar\u003c\/td\u003e\u003ctd\u003e360 mm\u003c\/td\u003e\u003ctd\u003e750 mm\u003c\/td\u003e\u003ctd\u003eR 1\"\u003c\/td\u003e\u003ctd\u003e12 kg\u003c\/td\u003e\u003ctd\u003eWith feet\u003c\/td\u003e\u003ctd\u003e01050070\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003e80 SMR-P\u003c\/th\u003e\u003ctd\u003e80 litres\u003c\/td\u003e\u003ctd\u003e10 bar\u003c\/td\u003e\u003ctd\u003e450 mm\u003c\/td\u003e\u003ctd\u003e750 mm\u003c\/td\u003e\u003ctd\u003eR 1\"\u003c\/td\u003e\u003ctd\u003e16 kg\u003c\/td\u003e\u003ctd\u003eWith feet\u003c\/td\u003e\u003ctd\u003e03080070\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003e100 SMR-P\u003c\/th\u003e\u003ctd\u003e100 litres\u003c\/td\u003e\u003ctd\u003e10 bar\u003c\/td\u003e\u003ctd\u003e450 mm\u003c\/td\u003e\u003ctd\u003e850 mm\u003c\/td\u003e\u003ctd\u003eR 1\"\u003c\/td\u003e\u003ctd\u003e18 kg\u003c\/td\u003e\u003ctd\u003eWith feet\u003c\/td\u003e\u003ctd\u003e03100070\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003e220 SMR\u003c\/th\u003e\u003ctd\u003e200 litres\u003c\/td\u003e\u003ctd\u003e10 bar\u003c\/td\u003e\u003ctd\u003e485 mm\u003c\/td\u003e\u003ctd\u003e1,400 mm\u003c\/td\u003e\u003ctd\u003eR 1½\"\u003c\/td\u003e\u003ctd\u003e49 kg\u003c\/td\u003e\u003ctd\u003eVertical\u003c\/td\u003e\u003ctd\u003e03200070\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eCompatibility and limits\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eThe Ibaiondo SMR is intended for closed solar energy systems.\u003c\/li\u003e\u003cli\u003eThe \u003cstrong\u003emaximum pressure is 10 bar\u003c\/strong\u003e on all models.\u003c\/li\u003e\u003cli\u003eThe factory pre-charge is 2.5 bar.\u003c\/li\u003e\u003cli\u003eIt accepts antifreeze mixtures up to 50%.\u003c\/li\u003e\u003cli\u003eThe 220 SMR model has a capacity of 200 litres and weighs 49 kg.\u003c\/li\u003e\u003cli\u003eIbaiondo recommends fitting a VI intermediate vessel as a heat dissipater.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eWhen this product is not the right choice\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\u003cth\u003eProduct\u003c\/th\u003e\u003cth\u003eWhen to choose it\u003c\/th\u003e\u003cth\u003eMembrane\u003c\/th\u003e\u003cth\u003eMaximum pressure\u003c\/th\u003e\u003cth\u003eFactory pre-charge\u003c\/th\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003e\u003ca href=\"\/en-en\/products\/vaso-expansion-solar-smf-ibaiondo-130c\"\u003eIbaiondo SMF\u003c\/a\u003e\u003c\/th\u003e\u003ctd\u003eYour solar circuit needs 8 to 24 litres, without feet\u003c\/td\u003e\u003ctd\u003eFixed; peaks of 130 °C for one hour\u003c\/td\u003e\u003ctd\u003e10 bar; 8 bar on 24 litres\u003c\/td\u003e\u003ctd\u003e2.5 bar\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003e\u003ca href=\"\/en-en\/products\/vaso-de-expansion-ibaiondo-cmf-para-calefaccion-1\"\u003eIbaiondo CMF\u003c\/a\u003e\u003c\/th\u003e\u003ctd\u003eYour circuit is a closed heating or cooling circuit\u003c\/td\u003e\u003ctd\u003eFixed\u003c\/td\u003e\u003ctd\u003e4, 5 or 6 bar, depending on the model\u003c\/td\u003e\u003ctd\u003e1.5 bar\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth\u003e\u003ca href=\"\/en-en\/products\/vaso-expansion-acs-cmr-ibaiondo-agua-potable\"\u003eIbaiondo CMR\u003c\/a\u003e\u003c\/th\u003e\u003ctd\u003eYour circuit is domestic hot water\u003c\/td\u003e\u003ctd\u003eSuitable for drinking water\u003c\/td\u003e\u003ctd\u003e10 bar; 8 bar on 24 litres\u003c\/td\u003e\u003ctd\u003e3 bar\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhich Ibaiondo SMR model do I need?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt depends on the fluid volume, temperature and pressure of your solar circuit. With that data we help you choose in a \u003ca href=\"\/en-en\/products\/expert-technician-remote-technical-call\"\u003etechnical call\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt is in stock at our warehouse. If no units are left when you order, we order it urgently and tell you the updated delivery time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the membrane be replaced?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes. The Ibaiondo SMR membrane is replaceable and complies with EN 13831.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it accept antifreeze?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes, up to 50%. Ibaiondo states that the SMR is suitable for antifreeze mixtures up to that proportion.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the capacity of the 220 SMR?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e200 litres. Ibaiondo gives the name 220 SMR to the 200-litre model, reference 03200070, with an R 1½\" connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need an intermediate vessel?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIbaiondo recommends it. The VI intermediate vessel dissipates heat before the expansion vessel and protects its membrane.\u003c\/p\u003e\u003ch3\u003eQ-Tech installation and support\u003c\/h3\u003e\u003cp\u003eThe expansion vessel works with the pump station and safety valve of your solar circuit, and its air pressure is set to suit your installation. Q-Tech delivers it inside a \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003epre-assembled plant room\u003c\/a\u003e: assembled, wired and tested in our workshop, arriving on site \u003cstrong\u003eready to connect\u003c\/strong\u003e. You book it with the \u003ca href=\"\/en-en\/products\/tecnico-experto-pre-montaje-nave\"\u003eTécnico Experto workshop pre-assembly\u003c\/a\u003e service.\u003c\/p\u003e\u003cp\u003eIf your installation already exists, an \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site hourly Expert Technician\u003c\/a\u003e connects the Ibaiondo SMR and checks its pressure. You can see the full range in \u003ca href=\"\/en-en\/collections\/vasos-expansion-ibaiondo\"\u003eIbaiondo expansion vessels\u003c\/a\u003e or write to us on \u003ca href=\"https:\/\/wa.me\/qtechhouses\" target=\"_blank\" rel=\"noopener\"\u003eWhatsApp\u003c\/a\u003e or from \u003ca href=\"\/en-en\/pages\/contacto\"\u003econtact\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eDocumentation\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/www.ibaiondo.com\/wp-content\/uploads\/sites\/250\/2025\/03\/FT-SMR-P-35-100-LITROS-280225-R3.pdf\" target=\"_blank\" rel=\"noopener\"\u003eIbaiondo SMR-P data sheet, models with feet from 35 to 100 litres (in Spanish)\u003c\/a\u003e\u003c\/li\u003e\u003cli\u003e\u003ca href=\"https:\/\/www.ibaiondo.com\/wp-content\/uploads\/sites\/250\/2025\/03\/FT-SMR-P-200-1000-LITROS-280225-R3.pdf\" target=\"_blank\" rel=\"noopener\"\u003eIbaiondo SMR data sheet, models from 200 to 1000 litres (in Spanish)\u003c\/a\u003e\u003c\/li\u003e\u003cli\u003e\u003ca href=\"https:\/\/www.ibaiondo.com\/wp-content\/uploads\/sites\/250\/2019\/08\/manual-instrucciones-35-900-smr.pdf\" target=\"_blank\" rel=\"noopener\"\u003eIbaiondo SMR instruction manual, 35 to 900 litres (in Spanish)\u003c\/a\u003e\u003c\/li\u003e\u003cli\u003e\u003ca href=\"https:\/\/www.ibaiondo.com\/wp-content\/uploads\/sites\/250\/2025\/06\/Declaracion-Vasos-de-expansion-Abril-2025.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDeclaration of conformity for Ibaiondo expansion vessels (in Spanish)\u003c\/a\u003e\u003c\/li\u003e\u003cli\u003e\u003ca href=\"https:\/\/www.ibaiondo.com\/wp-content\/uploads\/sites\/250\/2026\/04\/CATALOGO-IBAIONDO-2026.pdf\" target=\"_blank\" rel=\"noopener\"\u003eIbaiondo 2026 catalogue (in Spanish)\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and lead times:\u003c\/strong\u003e this item is in stock at our warehouse. Occasionally, depending on the time of year, the stock update may contain an error. If no units are available when you place your order, we will order it urgently and inform you immediately of the updated delivery time.\u003c\/p\u003e","brand":"Ibaiondo","offers":[{"title":"35 SMR-P · 35 litres","offer_id":53598992761176,"sku":"BA-65211","price":126.99,"currency_code":"EUR","in_stock":true},{"title":"50 SMR-P · 50 litres","offer_id":53598992793944,"sku":"BA-66016","price":147.66,"currency_code":"EUR","in_stock":true},{"title":"80 SMR-P · 80 litres","offer_id":53598992826712,"sku":"BA-60647","price":200.41,"currency_code":"EUR","in_stock":true},{"title":"100 SMR-P · 100 litres","offer_id":53598992859480,"sku":"BA-58264","price":271.17,"currency_code":"EUR","in_stock":true},{"title":"220 SMR · 200 litres","offer_id":53599589597528,"sku":"BA-67375","price":578.29,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/ibaiondo-smr-p-vaso-expansion-solar-con-patas-vista-frontal.webp?v=1794322708"},{"product_id":"colector-plano-vitosol-200-fm-viessmann","title":"Viessmann Vitosol 200-FM flat-plate collector","description":"\u003ch3\u003eViessmann Vitosol 200-FM flat-plate collector\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eVitosol 200-FM solar collector: High-performance flat-plate collector with innovative ThermProtect selective coating.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe powerful Vitosol 200-FM flat-plate collectors are the ideal complement for all DHW, heating, and swimming pool installations. With their 2.3 m2 absorber surface, these flat-plate collectors adapt to the energy demand in each case. They can provide up to 75% of the annual energy required for domestic hot water and offer support for heating, swimming pools, or even industrial processes.\u003c\/p\u003e\n\u003cp\u003eIn combination with a gas condensing boiler, free solar energy allows for a reduction of more than one-third of the annual energy required for heating and hot water.\u003c\/p\u003e\n\u003ch3\u003eSpecial features of the Vitosol 200-FM:\u003c\/h3\u003e\n\u003ch4\u003e\u003cstrong\u003eThermProtect prevents overheating\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe new exclusive and innovative selective coating protects the collectors against overheating thanks to energy-efficient materials. The ThermProtect technology, patented by Viessmann, self-limits solar energy absorption when a certain temperature is reached. Above approximately 75 °C, the crystal structure changes, significantly increasing the heat emissivity of the absorber and reducing the collector's output. In this way, the maximum collector temperature is significantly lower, preventing steam formation in the solar circuit and overtemperature.\u003c\/p\u003e\n\u003cp\u003eThermProtect provides Vitosol 200-FM collectors with higher yields than conventional flat-plate collectors, as their output does not stagnate and they can return to supplying heat at any time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDurable, airtight, and well-insulated\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe one-piece molded aluminum frame and the continuous seal connecting it to the special solar glass provide permanent airtightness and great stability to the collector. The back panel is shock-resistant and corrosion-resistant. Highly effective thermal insulation reduces transition periods and heat losses in winter.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.viessmann.es\/content\/dam\/public-brands\/master\/products\/solar\/vitosol-200-fm\/Vitosol-200-FM-frame-16-9.png\/_jcr_content\/renditions\/original.\/Vitosol-200-FM-frame-16-9.png\" alt=\"The image shows a close-up of the Vitosol 200-FM collector frame with a special roof integration profile to accommodate the flashing frame.\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch4\u003eThe Vitosol 200-FM is particularly easy to install\u003c\/h4\u003e\n\u003cp\u003eThe integrated supply and return piping allows for safe mounting even in collector banks of up to 12 units in parallel, connected on the supply and return sides by opposite sides or up to the collectors on the same side, using flexible stainless steel connection tubes.\u003c\/p\u003e\n\u003cp\u003eThe flat-plate collectors are for universal application for mounting on roofs or additional structures, for example, on flat roofs, or even on facades. It is available in vertical or horizontal format. The Viessmann mounting system is easy to install with statically tested and corrosion-resistant stainless steel and aluminum parts.\u003c\/p\u003e\n\u003ch4\u003eAttractive on any roof\u003c\/h4\u003e\n\u003cp\u003eVitosol 200-FM is the right choice when the collector is to be supplied with a custom RAL-colored frame. It comes standard in a dark blue lacquer, suitable for almost any roof.\u003c\/p\u003e\n\u003ch3\u003eTechnical features of the Vitosol 200-FM:\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/Captura_de_pantalla_2025-10-10_a_las_11.32.18.png?v=1760088760\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eDownload documentation for the Viessmann Vitosol 200-FM flat-plate collector:\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.viessmann.es\/content\/dam\/public-brands\/es\/products\/vitosol\/datos-t%C3%A9cnicos\/5458626VDP00009_1.pdf\/_jcr_content\/renditions\/original.media_file.download_attachment.file\/5458626VDP00009_1.pdf\" title=\"Download Vitosol 200-FM Viessmann technical data\" rel=\"noopener\" target=\"_blank\"\u003eTechnical data - Vitosol 200-FM\u003c\/a\u003e\u003c\/p\u003e","brand":"Viessmann","offers":[{"title":"SV2F vertical flat collector - Ref. ZK02453","offer_id":55924806648152,"sku":"VI-ZK02453","price":999.0,"currency_code":"EUR","in_stock":true},{"title":"SH2F horizontal flat collector - Ref. ZK02454","offer_id":55924806680920,"sku":"VI-ZK02454","price":999.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/CAPTADOR-SOLAR-PLANO-VITOSOL-200FM-VIESSMANN-02.webp?v=1760089860"},{"product_id":"colector-tubos-de-vacio-vitosol-200-tm-viessmann","title":"Viessmann Vitosol 200-TM vacuum tube collector","description":"\u003ch3\u003eViessmann Vitosol 200-TM vacuum tube collector\u003c\/h3\u003e\n\u003cp\u003eThe Vitosol 200-TM are high-performance vacuum tube solar collectors based on the heat pipe principle, featuring ThermProtect temperature disconnection for high reliability.\u003c\/p\u003e\n\u003ch4\u003eSpecial features of the Viessmann Vitosol 200-TM vacuum tube collector:\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eHigh reliability thanks to ThermProtect\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe new ThermProtect temperature self-limitation prevents overheating when heat demand stalls and solar radiation is intense. As a result, the Vitosol 200-TM is also suitable for buildings that are not in use all year round, such as schools.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg height=\"341\" width=\"426\" style=\"float: none;\" alt=\"Vitosol 200-TM: Vacuum tube collector | Viessmann ES\" src=\"https:\/\/www.viessmann.es\/content\/dam\/public-brands\/master\/products\/solar\/vitosol-200-tm\/Vitosol-200-TM-cross-section-5-4.png\/_jcr_content\/renditions\/original.\/Vitosol-200-TM-cross-section-5-4.png\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum heat exchange\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe collector operates on the heat pipe principle, where the solar fluid does not circulate directly through the tubes. Instead, a fluid vaporizes in the heat pipe and transfers the heat through liquefaction via the copper heat exchanger to the system's solar fluid. This mode of operation ensures maximum heat transport, as well as excellent operating and maintenance characteristics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuick, simple, and safe installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is not necessary to open the collector housing to install the tubes. A retaining cover on the rails prevents the tubes from slipping. In case of repairs, the “dry” tube connection allows tubes to be installed or replaced quickly and easily even when the system is full.\u003c\/p\u003e\n\u003ch4\u003eTechnical specifications of the Viessmann Vitosol 200-TM vacuum tube collector:\u003c\/h4\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/Captura_de_pantalla_2025-10-10_a_las_12.46.19.png?v=1760093224\" alt=\"technical specifications vitosol 200-tm viessmann vacuum tube collector\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch3\u003eDownload documentation for the Viessmann Vitosol 200-TM vacuum tube collector:\u003c\/h3\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"Download Vitosol 200-TM Viessmann technical data\" href=\"https:\/\/www.viessmann.es\/content\/dam\/public-brands\/es\/products\/vitosol\/cat%C3%A1logos\/VIESSMANN_Vitosol%20200-TM.pdf\/_jcr_content\/renditions\/original.media_file.download_attachment.file\/VIESSMANN_Vitosol%20200-TM.pdf\" target=\"_blank\"\u003eTechnical data - Vitosol 200-TM\u003c\/a\u003e\u003c\/p\u003e","brand":"Viessmann","offers":[{"title":"Vacuum tube collector 1.63m2 - Ref. SK06741","offer_id":55925099823448,"sku":"VI-SK06741","price":1399.0,"currency_code":"EUR","in_stock":true},{"title":"Vacuum tube collector 3.26m2 - Ref. SK06742","offer_id":55925099856216,"sku":"VI-SK06742","price":2650.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/CAPTADOR-SOLAR-TUBO-VACIO-VITOSOL-200TM-VIESSMANN-00.webp?v=1760093257"},{"product_id":"vitosolic-100-modelo-sd1-regulacion-electronica-bivalente-solar","title":"Vitosolic 100, model SD1: Bivalent Solar Electronic Control","description":"\u003cp\u003eThe \u003cb\u003eVitosolic 100, model SD1\u003c\/b\u003e, is a differential temperature controller designed to optimize the efficiency of your heating and domestic hot water (DHW) production system. It offers intelligent, priority management of solar energy, ensuring maximum savings and performance in bivalent installations.\u003c\/p\u003e\n\u003cp\u003eThis system is specifically designed for installers and professionals who require precise and reliable control in complex configurations.\u003c\/p\u003e\n\u003ch3\u003e💰 Key Benefits: Maximize Savings and Efficiency\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003eVitosolic 100\u003c\/b\u003e controller goes beyond a simple on\/off switch. It is the centerpiece for superior energy management.\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eIntelligent Solar Priority:\u003c\/b\u003e Automatically manages DHW demand by prioritizing energy captured by solar collectors before activating the auxiliary boiler (gas, oil, or solid fuel).\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eUniversal Compatibility:\u003c\/b\u003e A comprehensive bivalent solution compatible with solar collector systems, gas\/oil boilers, and solid fuel boilers.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eGuaranteed Savings:\u003c\/b\u003e Optimizes consumption of the auxiliary source (boiler), significantly reducing operating costs for homes or businesses.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eSimple and Reliable Installation:\u003c\/b\u003e Clear wiring and configuration facilitate startup by professional installers.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003e⚙️ Technical Features of the Vitosolic 100 (SD1)\u003c\/h3\u003e\n\u003cp\u003eThis electronic regulator operates based on the temperature difference between the solar collector and the DHW storage tank, ensuring efficient heat transfer only when optimal.\u003c\/p\u003e\n\u003ch4\u003eAdvanced Configuration and Detection\u003c\/h4\u003e\n\u003cp\u003eThe SD1 model is prepared to precisely monitor working conditions:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eDifferential Control:\u003c\/b\u003e Activates the solar circuit pump when the collector temperature exceeds that of the storage tank by a preset differential.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eSystem Protection:\u003c\/b\u003e Includes safety functions such as frost protection and DHW storage tank maximum temperature limitation.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch4\u003eIncluded Measurement Components\u003c\/h4\u003e\n\u003cp\u003eThe controller box includes the necessary sensors for immediate and precise installation:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eNTC 20 kOhm Sensor:\u003c\/b\u003e Generally used for temperature measurement in the solar collector.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eNTC 10 kOhm Sensor:\u003c\/b\u003e Usually intended for temperature measurement in the DHW storage tank.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e📋 Technical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe following information is essential for the compatibility and installation of the \u003cb\u003eVitosolic 100, model SD1\u003c\/b\u003e.\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eModel:\u003c\/b\u003e SD1\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eControl Type:\u003c\/b\u003e Electronic, via temperature difference\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eMain Application:\u003c\/b\u003e Bivalent DHW production\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eSource Compatibility:\u003c\/b\u003e Solar energy collectors, gas boilers, oil boilers, solid fuel boilers.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eIncluded Sensors:\u003c\/b\u003e 1 x NTC 20 kOhm sensor + 1 x NTC 10 kOhm sensor\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003ePower Supply:\u003c\/b\u003e [Add voltage and frequency, e.g., 230 V, 50 Hz (Assumed data, must be verified)]\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eRelay Outputs:\u003c\/b\u003e [Add number of relays and capacity, e.g., 1 potential-free relay (Assumed data, must be verified)]\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eProtection Rating:\u003c\/b\u003e [Add IP, e.g., IP20 (Assumed data, must be verified)]\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e❓ Frequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003e\u003cb\u003eWhat exactly does \"bivalent DHW production\" mean in this context?\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp\u003eBivalent DHW production involves the use of \u003cb\u003etwo energy sources\u003c\/b\u003e to heat water: a primary, priority source (in this case, solar) and an auxiliary source (gas, oil, or solid fuel boiler). The Vitosolic 100 intelligently manages when and how much the auxiliary source needs to intervene.\u003c\/p\u003e\n\u003ch4\u003e\u003cb\u003eIs the Vitosolic 100 SD1 compatible with any brand of boiler?\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp\u003eYes. By functioning as a \u003cb\u003edifferential temperature controller\u003c\/b\u003e that operates a valve or pump, it is compatible with any boiler system that accepts a simple control signal (such as burner start\/stop or auxiliary pump control). It is a universal control system for solar thermal energy management.\u003c\/p\u003e\n\u003ch4\u003e\u003cb\u003eHow are solar collectors protected from overheating in summer?\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Vitosolic 100 controller incorporates \u003cb\u003ethermal protection functions\u003c\/b\u003e that limit the maximum temperature of the DHW storage tank to prevent overheating. Once the limit is reached, the regulator stops the solar pump to prevent system damage or excessive steam formation.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e📞 Technical Support and Professional Assistance\u003c\/h3\u003e\n\u003cp\u003eFor installers and companies: If you have questions about the configuration or need specialized technical assistance during installation, our team of experts is available by phone or through our on-site service. \u003cb\u003eContact us\u003c\/b\u003e to ensure a perfect startup of your \u003cb\u003eVitosolic 100\u003c\/b\u003e.\u003c\/p\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":56163424797016,"sku":"VI-Z007387","price":537.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/VIESSMANN-REGULACION-VITOSOLIC100-SD1-00.webp?v=1762804642"},{"product_id":"vitosolic-200-modelo-sd4-controlador-solar-electronico-multifuncional","title":"Vitosolic 200, model SD4: Multifunctional Electronic Solar Controller","description":"\u003cp\u003eThe \u003cb\u003eVitosolic 200, model SD4\u003c\/b\u003e, is a high-end differential temperature controller designed for the comprehensive and simultaneous management of multiple thermal applications. This electronic control system maximizes solar energy performance in complex configurations that include up to \u003cb\u003efour different consumers\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp\u003eTargeted at expert installers and projects that demand maximum flexibility and energy efficiency in bivalent and solar-supported systems.\u003c\/p\u003e\n\u003ch3\u003e📈 Maximum Performance: Benefits of the Vitosolic 200 (SD4)\u003c\/h3\u003e\n\u003cp\u003eThe SD4 model is an investment in versatility and energy optimization.\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eManagement of 4 Consumers:\u003c\/b\u003e Unique capacity to control up to four heat demand circuits, ideal for large residential systems or small businesses.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eTotal Application Flexibility:\u003c\/b\u003e Control compatible with:\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eBivalent Domestic Hot Water (DHW) production.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eSwimming pool water heating.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eSolar-supported heating systems.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eIntelligent Source Prioritization:\u003c\/b\u003e Optimizes the intervention of auxiliary boilers (gas, oil, or solid fuel), ensuring that solar energy always has top priority.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eInformation and Diagnostics:\u003c\/b\u003e Allows for detailed monitoring of temperatures and operating states, facilitating diagnostics and maintenance.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003e⚙️ Key Technical Features of the Vitosolic 200\u003c\/h3\u003e\n\u003cp\u003eThis controller is the brain behind your multifunctional solar installation, operating with pinpoint precision based on temperature difference.\u003c\/p\u003e\n\u003ch4\u003eBivalent and Multi-Purpose Solution\u003c\/h4\u003e\n\u003cp\u003eThe SD4 integrates seamlessly into any mixed thermal configuration:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eBoiler Integration:\u003c\/b\u003e Works with oil, gas, and solid fuel boilers, acting as the primary manager for thermal backup.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eHigh-Precision Differential Control:\u003c\/b\u003e Uses temperature difference to ensure heat transfer only occurs when it is energy-efficient.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch4\u003eMeasurement Components and Control Capacity\u003c\/h4\u003e\n\u003cp\u003eTo manage up to four consumers, the SD4 model offers an extensive set of sensors and inputs.\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eStandard Included Sensors:\u003c\/b\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e1 x NTC 20 kOhm sensor: For solar collector measurement.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e2 x NTC 10 kOhm sensors: For DHW storage tanks and\/or swimming pools.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eExpansion Capacity:\u003c\/b\u003e The system is ready for the connection of additional temperature sensors and actuators, adapting to complex hydraulic layouts.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e📋 Technical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe following information is vital for the planning and advanced installation of the \u003cb\u003eVitosolic 200, model SD4\u003c\/b\u003e.\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eModel:\u003c\/b\u003e SD4\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eControl Type:\u003c\/b\u003e Programmable electronic differential temperature control\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eMax. Controlled Consumers:\u003c\/b\u003e 4\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eSupported Applications:\u003c\/b\u003e Bivalent DHW, Pool heating, Solar-supported heating.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eSource Compatibility:\u003c\/b\u003e Solar collectors, gas\/oil boilers, solid fuel boilers.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eIncluded Sensors:\u003c\/b\u003e 1 x NTC 20 kOhm sensor + 2 x NTC 10 kOhm sensors\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eDisplay:\u003c\/b\u003e [Verify if display is present, e.g.: LCD display with icons and text (Assumed data)]\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eInputs\/Outputs:\u003c\/b\u003e [Add number of sensor inputs and relay outputs, e.g.: 4 sensor inputs \/ 2 relay outputs (Assumed data, must be verified)]\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e❓ Frequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eCan the Vitosolic 200 SD4 simultaneously control DHW and the swimming pool?\u003c\/h4\u003e\n\u003cp\u003eAbsolutely. The advanced design of the SD4 model allows for bivalent DHW management \u003cb\u003eand\u003c\/b\u003e independent control of the swimming pool heating circuit (or auxiliary heating), always prioritizing the efficiency of the solar contribution. This is its key advantage over simpler models.\u003c\/p\u003e\n\u003ch4\u003eCan different heating priorities be configured among the 4 consumers?\u003c\/h4\u003e\n\u003cp\u003eYes, one of the key features of the Vitosolic 200 is its ability to \u003cb\u003eprogram heating priority\u003c\/b\u003e among different circuits. This allows the user or installer to define which consumer (e.g., DHW) should be heated first in the event of limited solar energy.\u003c\/p\u003e\n\u003ch4\u003eWhat advantage does the Vitosolic 200 offer over the Vitosolic 100 in a large project?\u003c\/h4\u003e\n\u003cp\u003eThe Vitosolic 200 SD4 is designed for \u003cb\u003ecomplexity and versatility\u003c\/b\u003e. While the Vitosolic 100 handles simple configurations, the SD4 supports up to 4 consumers and offers more advanced programming and diagnostic options, making it ideal for hydraulic layouts that require auxiliary heating functions or pool control.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e📞 Technical Support and Professional Assistance\u003c\/h3\u003e\n\u003cp\u003eThis advanced controller is the experts' choice. If you are an installer and need specialized technical support for configuring the 4 consumers or integrating multiple heat sources, do not hesitate to contact our support team. \u003cb\u003eCall us\u003c\/b\u003e to ensure the maximum performance of your \u003cb\u003eVitosolic 200\u003c\/b\u003e installation.\u003c\/p\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":56172689949016,"sku":"VI-Z007388","price":927.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/VIESSMANN-REGULACION-VITOSOLIC200-SD4-00.webp?v=1762806961"},{"product_id":"sonda-temperatura-inmersion-ntc-10kohm-acumulador","title":"NTC 10 kOhm Immersion Temperature Sensor","description":"\u003ch3\u003eNTC 10 kOhm Immersion Temperature Sensor\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003eNTC 10 kOhm Immersion Temperature Sensor\u003c\/b\u003e is an essential high-precision component designed for reliable temperature measurement in large-volume tanks. Its primary function is to provide accurate data to electronic controllers (such as the Vitosolic series) to efficiently manage Domestic Hot Water (DHW) production and auxiliary heating.\u003c\/p\u003e\n\u003cp\u003eThis product is designed for installers, technical services, and users who require precise, long-lasting temperature measurement in humid environments.\u003c\/p\u003e\n\u003ch3\u003e🛠️ Essential Applications: Measurement Reliability\u003c\/h3\u003e\n\u003cp\u003eReliable temperature measurement is fundamental for energy efficiency and system protection.\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eStorage Tank Precision:\u003c\/b\u003e Ideal for direct mounting in the DHW tank sensor well, ensuring the required comfort temperature.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eAuxiliary Management:\u003c\/b\u003e Essential for heating water buffer tanks, allowing the boiler to intervene only when strictly necessary.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eCombined Systems:\u003c\/b\u003e Perfect for combined storage tanks, where temperature differentiation is required for multiple circuits.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003e⚙️ Technical Features and Benefits of the NTC 10 kOhm\u003c\/h3\u003e\n\u003cp\u003eThis component combines ease of installation with technical precision.\u003c\/p\u003e\n\u003ch4\u003eCompatibility and Resistance\u003c\/h4\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eNTC 10 kOhm Technology:\u003c\/b\u003e Offers a standardized resistance-temperature curve, compatible with the vast majority of electronic controllers on the market.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eOptimized Mounting:\u003c\/b\u003e Specifically designed for immersion installation in the tank's sensor well, ensuring ideal thermal contact with the medium.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch4\u003eReady-to-Connect Installation\u003c\/h4\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eExtended Connection Cable:\u003c\/b\u003e Includes a 3.8-meter cable, which facilitates routing and connection to the controller, even in distant or complex installations.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eEssential Spare Part:\u003c\/b\u003e Key component for the maintenance and repair of thermal systems, restoring temperature reading accuracy.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cblockquote\u003e\n\n\u003cp\u003e\u003cb\u003eTechnical Note:\u003c\/b\u003e Supplied with a 3.8 m cable, \u003cb\u003ewithout a connector\u003c\/b\u003e. Installation requires the professional to connect the sensor directly to the corresponding controller terminals.\u003c\/p\u003e\n\n\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003ch3\u003e📋 Technical Specifications\u003c\/h3\u003e\n\u003cp\u003eCrucial information for replacement and compatibility of the \u003cb\u003eNTC 10 kOhm Sensor\u003c\/b\u003e.\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eSensor Type:\u003c\/b\u003e Negative Temperature Coefficient (NTC) resistor\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eResistance Value:\u003c\/b\u003e 10 kOhm (at 25\u003cspan class=\"math-inline\" data-math=\"{^\\circ}\\text{C}\"\u003eºC\u003c\/span\u003e)\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eMounting Type:\u003c\/b\u003e Immersion (for sensor well)\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003ePrimary Application:\u003c\/b\u003e Temperature measurement in tank liquids\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eCable Length:\u003c\/b\u003e 3.8 m (380 cm)\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eConnection:\u003c\/b\u003e No connector (direct terminal connection)\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eCompatibility:\u003c\/b\u003e DHW storage tanks, buffer tanks, combined storage tanks.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e❓ Frequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eWhy is it important that the sensor is NTC 10 kOhm?\u003c\/h4\u003e\n\u003cp\u003eThe \u003cb\u003e10 kOhm\u003c\/b\u003e value is a resistance standard at 25\u003cspan class=\"math-inline\" data-math=\"{^\\circ}\\text{C}\"\u003eºC\u003c\/span\u003e used by many boiler and solar controller manufacturers. If your equipment specifically requires an NTC 10 kOhm, using a different value (such as 20 kOhm) will result in an incorrect temperature reading, which will compromise the system's efficiency and safety.\u003c\/p\u003e\n\u003ch4\u003eHow is this sensor installed in the tank?\u003c\/h4\u003e\n\u003cp\u003eThis sensor is designed to be inserted into an \u003cb\u003eimmersion well\u003c\/b\u003e (sleeve) pre-installed in the storage tank. The well protects the sensor from direct contact with water and allows for replacement without draining the tank. The sensor simply slides into the well and the cable connects to the controller.\u003c\/p\u003e\n\u003ch4\u003eWhat is the difference between this sensor and a contact sensor?\u003c\/h4\u003e\n\u003cp\u003eAn \u003cb\u003eimmersion sensor\u003c\/b\u003e (like this one) directly measures the water temperature inside the tank, providing the most accurate reading. A contact sensor measures the temperature of the outer surface of the pipe or tank, which is less accurate and can be affected by ambient temperature.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e📞 Technical Support and Professional Assistance\u003c\/h3\u003e\n\u003cp\u003eIf you need to verify the compatibility of this NTC 10 kOhm sensor with your control system or require assistance with component replacement, our technical team is available. \u003cb\u003eContact our specialists\u003c\/b\u003e by phone to ensure you are purchasing the exact spare part for your installation.\u003c\/p\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":56172772557144,"sku":"VI-7426247","price":123.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/VIESSMANN-Sonda-temperatura-inmersion-NTC-00.webp?v=1762947240"},{"product_id":"sonda-de-temperatura-ntc-20-kohm-para-colector-solar","title":"NTC 20 kOhm Temperature Sensor for Solar Collector","description":"\u003cp\u003eThe \u003cb\u003eNTC 20 kOhm Immersion Temperature Sensor\u003c\/b\u003e is a critical precision sensor, specifically designed to reliably monitor the temperature inside solar collectors. Its proper operation is the foundation of efficiency in any solar thermal energy system.\u003c\/p\u003e\n\u003cp\u003eThis component ensures the reading accuracy required for differential controllers (such as Vitosolic models) to determine the optimal moment for heat transfer. It is an essential spare part for installers and maintenance technicians.\u003c\/p\u003e\n\u003ch3\u003e☀️ Key Benefits: Precise Measurement for Maximum Solar Efficiency\u003c\/h3\u003e\n\u003cp\u003eThe precision of the NTC 20 kOhm sensor directly impacts the performance of your installation.\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eMaximum Solar Efficiency:\u003c\/b\u003e Allows the controller to accurately identify when the collector temperature is high enough to start the pump and maximize energy harvesting.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eFast and Reliable Response:\u003c\/b\u003e NTC (Negative Temperature Coefficient) technology provides a rapid response to temperature changes, which is crucial in the solar primary circuit.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eCompatibility Standard:\u003c\/b\u003e The 20 kOhm value is the standard used by major manufacturers for measuring solar collectors, ensuring broad compatibility.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003e⚙️ Technical Features of the NTC 20 kOhm Sensor\u003c\/h3\u003e\n\u003cp\u003eDesigned for the demanding conditions of the primary solar circuit.\u003c\/p\u003e\n\u003ch4\u003eCollector Application\u003c\/h4\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003ePrimary Function:\u003c\/b\u003e It is the \u003cb\u003eCollector Temperature Sensor\u003c\/b\u003e, an indispensable element for differential control.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eImmersion Installation:\u003c\/b\u003e Although its final application is the collector, the sensor is an immersion type, intended to be placed in the primary circuit thermowell (flow or return line) for direct, non-surface measurement.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch4\u003eInstallation-Ready\u003c\/h4\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003e2.5m Cable Included:\u003c\/b\u003e Supplied with a \u003cb\u003e2.5-meter long\u003c\/b\u003e connection cable, facilitating its positioning on the collector or near the control valve.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eDirect Connection:\u003c\/b\u003e The probe is delivered \u003cb\u003ewithout a connector\u003c\/b\u003e. This allows the installer to perform the wiring and connection to the electronic controller terminals professionally, ensuring an optimal connection.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e📋 Technical Specifications\u003c\/h3\u003e\n\u003cp\u003eEssential details for verifying spare parts and new installations.\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eSensor Type:\u003c\/b\u003e Negative Temperature Coefficient (NTC) resistance\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eResistance Value:\u003c\/b\u003e 20 kOhm (at 25\u003cspan class=\"math-inline\" data-math=\"{^\\circ}\\text{C}\"\u003eºC\u003c\/span\u003e)\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eApplication:\u003c\/b\u003e Solar Collector temperature measurement (Collector Sensor)\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eMounting Type:\u003c\/b\u003e Immersion sensor\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eCable Length:\u003c\/b\u003e 2.5 m (250 cm)\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eConnection:\u003c\/b\u003e Without connector (terminal connection required)\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eReplacement:\u003c\/b\u003e Compatible with systems using NTC 20 kOhm solar controllers.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e❓ Frequently Asked Questions \u003c\/h3\u003e\n\u003ch4\u003eWhat is the risk of using an NTC 10 kOhm probe instead of an NTC 20 kOhm in the collector?\u003c\/h4\u003e\n\u003cp\u003eThe risk is the \u003cb\u003einoperability or severe inefficiency\u003c\/b\u003e of the system. The controller reads the resistance and translates it into temperature. If you use an NTC 10 kOhm probe when the controller expects 20 kOhm, the temperature differential will be calculated erroneously, which may cause the solar pump not to start or to start at inefficient times.\u003c\/p\u003e\n\u003ch4\u003eIs this probe resistant to the high temperatures reached in the solar collector?\u003c\/h4\u003e\n\u003cp\u003eYes, this NTC 20 kOhm Collector probe is manufactured with heat-resistant materials, designed to withstand the stagnation temperatures (maximum temperature) that can be generated in solar collectors during the summer, ensuring a long service life under extreme conditions.\u003c\/p\u003e\n\u003ch4\u003eWhy does it come without a connector if it is a spare part?\u003c\/h4\u003e\n\u003cp\u003eDirect connection to terminals, without a pre-assembled connector, is the professional standard in many solar control systems. This allows the installer to \u003cb\u003eadjust the cable length\u003c\/b\u003e and ensure maximum contact quality at the controller terminal block, which is fundamental for a precise signal in the electrical environment.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e📞 Technical Support and Professional Assistance\u003c\/h3\u003e\n\u003cp\u003eChoosing the correct probe is essential. If you need to confirm the compatibility of this NTC 20 kOhm probe with your current controller or have questions about wiring, our technical support team is at your disposal. \u003cb\u003eContact our experts\u003c\/b\u003e to resolve your installation and commissioning queries.\u003c\/p\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":56181651505496,"sku":"VI-7831913","price":109.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/VIESSMANN-Sonda-temperatura-inmersion-NTC-00.webp?v=1762947240"},{"product_id":"solar-divicon-estacion-de-bombeo-solar-para-el-circuito-de-colectores","title":"Solar-Divicon: Solar Pump Station for the Collector Circuit","description":"\u003cp\u003eThe \u003cb\u003eSolar-Divicon\u003c\/b\u003e is a compact, pre-assembled pumping unit designed to ensure the safe and efficient circulation of heat transfer fluid in the primary circuit of your solar collectors. This integral station streamlines installation and guarantees the operational reliability of the entire solar thermal system.\u003c\/p\u003e\n\u003cp\u003eIt is the smart, fast-installation solution for professionals seeking high performance and precise solar energy management.\u003c\/p\u003e\n\u003ch3\u003e🚀 Fast and Reliable Installation: Benefits of the Solar-Divicon\u003c\/h3\u003e\n\u003cp\u003ePurchasing a pre-assembled station eliminates assembly errors and drastically reduces commissioning time.\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eComplete Integration:\u003c\/b\u003e A unit that consolidates all essential circuit components into a single insulated block.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eEnergy Savings (Key):\u003c\/b\u003e Includes a \u003cb\u003ehigh-efficiency circulation pump\u003c\/b\u003e for alternating current, significantly reducing the system's electrical consumption.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eSystem Protection:\u003c\/b\u003e Incorporates safety and filling devices (safety valve, pressure gauge) to protect the collectors and facilitate maintenance.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eThermal Insulation:\u003c\/b\u003e A high-quality insulation cover that minimizes heat loss from the heat transfer fluid.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003e⚙️ Technical Specifications: Essential Components Included\u003c\/h3\u003e\n\u003cp\u003eThe Solar-Divicon is a complete hydraulic system, ready to connect.\u003c\/p\u003e\n\u003ch4\u003eIntegrated Control and Safety Elements\u003c\/h4\u003e\n\u003cp\u003eThe pumping station comes equipped with everything necessary for commissioning:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003ePressure Safety:\u003c\/b\u003e A safety valve calibrated to \u003cb\u003e6 bar\u003c\/b\u003e and a pressure gauge to monitor system pressure.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eTemperature and Flow Measurement:\u003c\/b\u003e Two integrated thermometers and a flow meter for precise hydronic adjustment.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eNon-Return Protection:\u003c\/b\u003e Two shut-off valves with an integrated check valve, essential for preventing gravity circulation (thermosiphon) at night.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch4\u003eFluid Connection and Management\u003c\/h4\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eFilling Device:\u003c\/b\u003e Facilitates the purging and initial filling of the solar circuit.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eAir Separator:\u003c\/b\u003e Removes trapped air from the system, which is vital to prevent noise and corrosion, and to maximize pump performance.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eSimple Connection:\u003c\/b\u003e Compression fitting union (\u003cb\u003eØ 22 mm\u003c\/b\u003e) for fast and airtight installation.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e🔬 Solar-Divicon Models: Pumping Specifications\u003c\/h3\u003e\n\u003cp\u003eThe Solar-Divicon is available in different models, varying in power and flow rate, as well as the option for an integrated controller.\u003c\/p\u003e\n\u003ctable\u003e\n\n\u003cthead\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cstrong\u003eMax. Head\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cstrong\u003eMax. Flow Rate\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cstrong\u003eRegulation \/ Integration\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cstrong\u003eRecommended Application\u003c\/strong\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cb\u003ePS 10\u003c\/b\u003e\u003c\/td\u003e\n\n\u003ctd\u003e6.0 m\u003c\/td\u003e\n\n\u003ctd\u003e1000 l\/h\u003c\/td\u003e\n\n\u003ctd\u003eNo regulation\u003c\/td\u003e\n\n\u003ctd\u003eStandard residential installations.\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cb\u003ePS 20\u003c\/b\u003e\u003c\/td\u003e\n\n\u003ctd\u003e6.5 m\u003c\/td\u003e\n\n\u003ctd\u003e1500 l\/h\u003c\/td\u003e\n\n\u003ctd\u003eNo regulation\u003c\/td\u003e\n\n\u003ctd\u003eInstallations with large collector fields or long pipe runs.\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cb\u003ePS 10 (with Vitosolic 100 SD1)\u003c\/b\u003e\u003c\/td\u003e\n\n\u003ctd\u003e6.0 m\u003c\/td\u003e\n\n\u003ctd\u003e1000 l\/h\u003c\/td\u003e\n\n\u003ctd\u003e\u003cb\u003eIntegrated Vitosolic 100 SD1 controller\u003c\/b\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\"Plug \u0026amp; Play\" solution with differential control included.\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\u003ch4\u003e\u003cb\u003eChoose the Right Model\u003c\/b\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003ePS 10:\u003c\/b\u003e Suitable for most domestic solar systems with standard head requirements.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003ePS 20:\u003c\/b\u003e Necessary when pressure drops are higher or the geometric height of the collector exceeds 6.0 m.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003ePS 10 with Vitosolic 100:\u003c\/b\u003e Ideal for new installations where the controller needs to be integrated into the pumping station for maximum simplicity.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\u003ch3\u003e❓ Frequently Asked Questions (Technical FAQ)\u003c\/h3\u003e\n\u003ch4\u003eWhat is the function of the check valve in the pumping station?\u003c\/h4\u003e\n\u003cp\u003eThe check valve is crucial to prevent \u003cb\u003ereverse thermosiphoning\u003c\/b\u003e. This occurs when hot fluid from the tank rises toward the collector by gravity during the night. By preventing this unwanted circulation, accumulated heat loss is avoided, maintaining system efficiency.\u003c\/p\u003e\n\u003ch4\u003eAt what flow rate should I set the Solar-Divicon flow indicator?\u003c\/h4\u003e\n\u003cp\u003eThe flow rate should be set to the \u003cb\u003eoptimum value\u003c\/b\u003e indicated in the installation's pressure drop calculation (depending on the number and type of collectors). The integrated flow meter allows the installer to precisely set the required \u003cspan class=\"math-inline\" data-math=\"L\/h\"\u003eL\/h\u003c\/span\u003e or \u003cspan class=\"math-inline\" data-math=\"L\/min\"\u003eL\/min\u003c\/span\u003e for efficient heat transfer without excessive turbulence.\u003c\/p\u003e\n\u003ch4\u003eIs the Solar-Divicon PS 20 compatible with advanced control systems (e.g., Vitosolic 200)?\u003c\/h4\u003e\n\u003cp\u003eYes. The PS 10 and PS 20 models \u003cb\u003ewithout integrated regulation\u003c\/b\u003e are fully compatible with any external solar controller, such as the Vitosolic 200. The controller simply sends an on\/off signal to the Solar-Divicon's high-efficiency pump based on the temperature differential.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e📞 Technical Support and Professional Assistance\u003c\/h3\u003e\n\u003cp\u003eOur team is highly qualified in solar thermal solutions. If you need help with sizing, model selection (PS 10 vs. PS 20), or the hydronic configuration of the Solar-Divicon, we offer technical support by phone or in person. \u003cb\u003eContact us\u003c\/b\u003e to optimize the commissioning of your collector circuit.\u003c\/p\u003e","brand":"Viessmann","offers":[{"title":"Solar Divicon PS 10","offer_id":56181835563352,"sku":"VI-Z021903","price":979.0,"currency_code":"EUR","in_stock":true},{"title":"Solar Divicon PS 20","offer_id":56181835596120,"sku":"VI-Z021904","price":1100.0,"currency_code":"EUR","in_stock":true},{"title":"Solar Divicon PS 10 with Vitosolic 100","offer_id":56181835628888,"sku":"VI-Z021902","price":1406.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/VIESSMANN-SOLAR-DIVICON-PS10-PS20-00.webp?v=1762950732"},{"product_id":"valvula-desviadora-termostatica-esbe-vtd300","title":"ESBE VTD300 thermostatic diverting valve for heating, DHW and solar","description":"\u003ch2\u003eESBE VTD300 thermostatic diverting valve for heating, domestic hot water and solar\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eESBE VTD300\u003c\/strong\u003e sends water to one outlet or the other according to its temperature, without electricity: below the change-over point it goes to port B and above it, to port A. At Q-Tech we fit it in the \u003cstrong\u003epre-assembled plant room\u003c\/strong\u003e, tested in our workshop before it reaches your site.\u003c\/p\u003e\n\u003ch3\u003eSummary\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eType\u003c\/th\u003e\u003ctd\u003e3-way thermostatic diverting valve\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBrand and model\u003c\/th\u003e\u003ctd\u003eESBE VTD300 series (VTD322)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eUse\u003c\/th\u003e\u003ctd\u003eHeating, domestic hot water (DHW), solar and zones, according to ESBE\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eChange-over point\u003c\/th\u003e\u003ctd\u003e45, 50 or 60 °C depending on the model\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConnection\u003c\/th\u003e\u003ctd\u003eExternal thread G 1 (DN 20)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eFlow\u003c\/th\u003e\u003ctd\u003eKvs 3.6 m³ per hour\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower supply\u003c\/th\u003e\u003ctd\u003eNone: an internal thermostat switches the port\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eQ-Tech installation\u003c\/th\u003e\u003ctd\u003eIntegrated and tested in the \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003eQ-Tech pre-assembled plant room\u003c\/a\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eWhat is the ESBE VTD300?\u003c\/h3\u003e\n\u003cp\u003eThe ESBE VTD300 is a 3-way thermostatic diverting valve that \u003cstrong\u003eswitches the water outlet when it reaches its set temperature\u003c\/strong\u003e, according to ESBE. An internal thermostat makes the change, and the valve works in any mounting position.\u003c\/p\u003e\n\u003ch3\u003eWhat problem does it solve?\u003c\/h3\u003e\n\u003cp\u003eIn heating, DHW or solar installations, water sometimes has to take a different route depending on whether it is cooler or warmer. The VTD300 makes that change on its own, \u003cstrong\u003ewith no sensor, no actuator and no wiring\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWith the 45 °C model, for example, water below 43 °C goes to port B, between 43 and 47 °C it is split between both ports and above 47 °C it goes to port A, according to ESBE. Both ports seal tightly.\u003c\/p\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003ePressure class\u003c\/th\u003e\u003ctd\u003ePN10\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaximum differential pressure\u003c\/th\u003e\u003ctd\u003e100 kPa (1 bar)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMedia temperature\u003c\/th\u003e\u003ctd\u003e100 °C continuously; 110 °C temporarily; minimum 0 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eChange-over tolerance\u003c\/th\u003e\u003ctd\u003e±2 °C on the 45 °C model; ±3 °C on the 50 and 60 °C models\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eScale accuracy\u003c\/th\u003e\u003ctd\u003e±1 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eLeakage between ports\u003c\/th\u003e\u003ctd\u003eTight sealing from AB to A and from AB to B\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMedia\u003c\/th\u003e\u003ctd\u003eWater and water with up to 50% glycol\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConnections\u003c\/th\u003e\u003ctd\u003eExternal thread G (ISO 228-1)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaterial\u003c\/th\u003e\u003ctd\u003eDezincification-resistant brass (DZR)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eDimensions\u003c\/th\u003e\u003ctd\u003eA 70 mm, B 42 mm, C 42 mm, D 46 mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConformity\u003c\/th\u003e\u003ctd\u003ePressure Equipment Directive (PED), article 4.3; no CE marking\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eModels and data by variant\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eModel\u003c\/th\u003e\u003cth\u003eConnection\u003c\/th\u003e\u003cth\u003eChange-over point\u003c\/th\u003e\u003cth\u003eTolerance\u003c\/th\u003e\u003cth\u003eKvs (m³ per hour)\u003c\/th\u003e\u003cth\u003eNet weight\u003c\/th\u003e\u003cth\u003eReference\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTD322\u003c\/td\u003e\u003ctd\u003eG 1 external\u003c\/td\u003e\u003ctd\u003e45 °C\u003c\/td\u003e\u003ctd\u003e±2 °C\u003c\/td\u003e\u003ctd\u003e3.6\u003c\/td\u003e\u003ctd\u003e0.45 kg\u003c\/td\u003e\u003ctd\u003e31600100\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTD322\u003c\/td\u003e\u003ctd\u003eG 1 external\u003c\/td\u003e\u003ctd\u003e50 °C\u003c\/td\u003e\u003ctd\u003e±3 °C\u003c\/td\u003e\u003ctd\u003e3.6\u003c\/td\u003e\u003ctd\u003e0.45 kg\u003c\/td\u003e\u003ctd\u003e31600200\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTD322\u003c\/td\u003e\u003ctd\u003eG 1 external\u003c\/td\u003e\u003ctd\u003e60 °C\u003c\/td\u003e\u003ctd\u003e±3 °C\u003c\/td\u003e\u003ctd\u003e3.6\u003c\/td\u003e\u003ctd\u003e0.45 kg\u003c\/td\u003e\u003ctd\u003e31600300\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eCompatibility and limits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum differential pressure of 1 bar\u003c\/strong\u003e, according to ESBE.\u003c\/li\u003e\n\u003cli\u003eWith 30 to 50% glycol, maximum output drops by 30 to 40%, according to ESBE.\u003c\/li\u003e\n\u003cli\u003eThe change-over point is fixed; ESBE offers VTD911 replacement thermostats at 45, 50, 60 and 70 °C, which are not on this page.\u003c\/li\u003e\n\u003cli\u003eESBE recommends fitting shut-off valves on the connections to make maintenance easier.\u003c\/li\u003e\n\u003cli\u003eNo CE marking: it is pressure equipment under article 4.3 of the PED.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen this product is not the right choice\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eProduct\u003c\/th\u003e\u003cth\u003eWhen to choose it\u003c\/th\u003e\u003cth\u003eKvs (m³ per hour)\u003c\/th\u003e\u003cth\u003eMaximum continuous water temperature\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003ca href=\"\/en-en\/products\/valvula-mezcladora-termostatica-esbe-solar-vts520-altas-temperaturas\"\u003eESBE VTS520 for solar thermal\u003c\/a\u003e\u003c\/td\u003e\u003ctd\u003eIf you need to mix water to deliver solar DHW at a fixed temperature\u003c\/td\u003e\u003ctd\u003e3.0 to 3.5\u003c\/td\u003e\u003ctd\u003e110 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003ca href=\"\/en-en\/products\/valvula-mezcladora-termostatica-esbe-vta320-antiescaldaduras\"\u003eESBE VTA320 and VTA520 for DHW\u003c\/a\u003e\u003c\/td\u003e\u003ctd\u003eIf you need to limit the hot water temperature at the taps\u003c\/td\u003e\u003ctd\u003e1.2 to 3.5\u003c\/td\u003e\u003ctd\u003e95 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhich temperature should I choose?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe point at which you want the water to change outlet: 45, 50 or 60 °C. Tell us about your installation and we will tell you the model.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference from a mixing valve?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA mixing valve blends hot and cold water to give one temperature. A diverting valve does not mix: it sends the water to one port or the other according to its temperature.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the change-over point be changed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, by replacing the thermostat with an ESBE VTD911 kit of another temperature. ESBE states that the change is easy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it need maintenance?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnder normal conditions, no, according to ESBE.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install it myself?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is not advisable: a professional should install it, following ESBE's instructions. Q-Tech delivers it fitted in the plant room or installs it with an Expert Technician.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe have it \u003cstrong\u003ein stock in Málaga\u003c\/strong\u003e and dispatch it as soon as we confirm your order.\u003c\/p\u003e\n\u003ch3\u003eQ-Tech installation and support\u003c\/h3\u003e\n\u003cp\u003eQ-Tech fits the VTD300 in the \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003epre-assembled plant room\u003c\/a\u003e: assembled and \u003cstrong\u003etested in our workshop\u003c\/strong\u003e, it arrives ready to connect. You can book \u003ca href=\"\/en-en\/products\/tecnico-experto-pre-montaje-nave\"\u003eworkshop pre-assembly\u003c\/a\u003e, an \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site hourly Expert Technician\u003c\/a\u003e or a \u003ca href=\"\/en-en\/products\/expert-technician-remote-technical-call\"\u003etechnical call\u003c\/a\u003e to choose the model. See also our \u003ca href=\"\/en-en\/collections\/solar-termica\"\u003esolar thermal range\u003c\/a\u003e or message us on \u003ca href=\"https:\/\/wa.me\/qtechhouses\" target=\"_blank\" rel=\"noopener\"\u003eWhatsApp\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/3774A292BDB3394CE30AD6ECFF9E548952936BF38C45F233DC33421F82BF190D\/05c474a55a544fe0b69b56e1fdbb3fa0\/pdf\/media\/47b26288efb54926bf71982e84559b65\/VTD300_en_L_LR.pdf\" target=\"_blank\" rel=\"noopener\"\u003eESBE VTD300 data sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/0D30EAD07DFBEB6725148944A53B3BBECFE690061D0B5F8AF68119C504540A0E\/04c884b18c574499acc01a66cbc5251e\/pdf\/media\/92875a16bcbb42ab90e6cefe1bd7195f\/Anv_VTD300_98140408_ver%20E_lr.pdf\" target=\"_blank\" rel=\"noopener\"\u003eVTD300 installation instructions (multilingual)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/2A821A4D8C08D0D60EAC8208547582482D69B8965B765A9315610AB8B192E62A\/5467c0179c09428b9c0fc0e945a420b0\/pdf\/media\/2bb608aca05345b19387843856edaf44\/DoC_VTD300_E.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDeclaration of conformity\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and lead times:\u003c\/strong\u003e this item is in stock at our warehouse. Occasionally, depending on the time of year, the stock update may contain an error. If no units are available when you place your order, we will order it urgently and inform you immediately of the updated delivery time.\u003c\/p\u003e\n","brand":"ESBE","offers":[{"title":"VTD322 G 1 · change-over at 45 °C (31600100)","offer_id":59035881505112,"sku":"SE-CO10445","price":210.54,"currency_code":"EUR","in_stock":true},{"title":"VTD322 G 1 · change-over at 50 °C (31600200)","offer_id":59035881537880,"sku":"SE-CO10446","price":210.54,"currency_code":"EUR","in_stock":true},{"title":"VTD322 G 1 · change-over at 60 °C (31600300)","offer_id":59035881570648,"sku":"SE-CO10447","price":210.54,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/esbe-vtd322-desviadora-termostatica.webp?v=1793795444"},{"product_id":"kit-solar-esbe-vmc322-45-c-g1","title":"ESBE VMC322 45 °C Solar Kit for Dual-Source Domestic Hot Water, G 1","description":"\u003ch2\u003eESBE VMC322 45 °C solar kit for domestic hot water with two heat sources\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eESBE VMC322\u003c\/strong\u003e combines a diverting valve and a thermostatic mixing valve in one body for domestic hot water coming from a solar cylinder or a biomass boiler. At Q-Tech we integrate it in the \u003cstrong\u003epre-assembled plant room\u003c\/strong\u003e, next to the cylinder and the backup boiler.\u003c\/p\u003e\n\u003ch3\u003eSummary\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eType\u003c\/th\u003e\u003ctd\u003eThermostatic solar kit: diverting and mixing valve in one body\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBrand and model\u003c\/th\u003e\u003ctd\u003eESBE VMC322, reference 31521000\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eUse\u003c\/th\u003e\u003ctd\u003eDomestic hot water with solar or biomass as main source and a backup boiler\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eChange-over point\u003c\/th\u003e\u003ctd\u003e45 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eOutlet temperature\u003c\/th\u003e\u003ctd\u003eAdjustable from 35 to 60 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConnections\u003c\/th\u003e\u003ctd\u003eExternal thread G 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower supply\u003c\/th\u003e\u003ctd\u003eNone: thermostatic components only\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eQ-Tech installation\u003c\/th\u003e\u003ctd\u003eIntegrated with cylinder and boiler in the \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003epre-assembled plant room\u003c\/a\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eWhat is the ESBE VMC322?\u003c\/h3\u003e\n\u003cp\u003eThe ESBE VMC322 is a thermostatic solar kit for domestic hot water that sends the water \u003cstrong\u003eto the boiler only when it is below 45 °C\u003c\/strong\u003e. Its mixing valve then limits the outlet temperature to the value set \u003cstrong\u003ebetween 35 and 60 °C\u003c\/strong\u003e. It is fitted at the solar cylinder outlet, before the backup boiler.\u003c\/p\u003e\n\u003ch3\u003eWhat problem does it solve?\u003c\/h3\u003e\n\u003cp\u003eIn a solar installation with a backup boiler, water from the cylinder can come out cold or very hot depending on the day. If it always goes through the boiler, energy is wasted; if it never does, it may not reach the temperature of use.\u003c\/p\u003e\n\u003cp\u003eThe VMC322 decides on its own, without electricity, when the boiler is needed and delivers water at a \u003cstrong\u003estable temperature of use\u003c\/strong\u003e. ESBE states that if the cold water fails, the kit shuts off the hot water to prevent scalding.\u003c\/p\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eChange-over point\u003c\/th\u003e\u003ctd\u003e45 °C, accuracy ±1 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eDiverting port shut-off\u003c\/th\u003e\u003ctd\u003e45 °C ±2 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMixing valve range\u003c\/th\u003e\u003ctd\u003e35 to 60 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eOutlet temperature stability\u003c\/th\u003e\u003ctd\u003e±2 °C, with unchanged hot and cold water pressures, a minimum flow of 4 litres per minute and at least 10 °C between hot inlet and mixed outlet\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eKvs\u003c\/th\u003e\u003ctd\u003e1.5 m³ per hour\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaximum flow from collector\u003c\/th\u003e\u003ctd\u003e0.7 litres per second (42 litres per minute)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eWater temperature from collector\u003c\/th\u003e\u003ctd\u003e0 to 95 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBackup source temperature\u003c\/th\u003e\u003ctd\u003eMaximum 95 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePressure class\u003c\/th\u003e\u003ctd\u003ePN 10\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConnections\u003c\/th\u003e\u003ctd\u003eExternal thread G 1 (ISO 228-1)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaterial\u003c\/th\u003e\u003ctd\u003eDezincification-resistant brass (DZR)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eDimensions\u003c\/th\u003e\u003ctd\u003eDimensions A 206 mm and J 136 mm, according to the ESBE drawing (see images)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eWeight\u003c\/th\u003e\u003ctd\u003e1.22 kg\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConformity\u003c\/th\u003e\u003ctd\u003ePressure Equipment Directive 2014-68-EU, article 4.3\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eCompatibility and limits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFor domestic hot water with two sources: solar thermal or biomass as main source and a boiler as backup, following ESBE's diagrams.\u003c\/li\u003e\n\u003cli\u003eThe change-over point of this model is fixed at \u003cstrong\u003e45 °C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eMaximum flow from the collector of 42 litres per minute: designed for small installations.\u003c\/li\u003e\n\u003cli\u003eESBE spare parts: VTD911 45 °C thermostat (37102000) and VTA932 35 to 60 °C insert (37000400), not included.\u003c\/li\u003e\n\u003cli\u003eSold without unions or check valves.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen this product is not the right choice\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIf you only need to divert water according to its temperature, without mixing, the \u003ca href=\"\/en-en\/products\/esbe-vtd300-thermostatic-diverting-valve\"\u003eESBE VTD300 diverting valve\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eIf you only need to limit the temperature of solar hot water, the \u003ca href=\"\/en-en\/products\/valvula-mezcladora-termostatica-esbe-solar-vts520-altas-temperaturas\"\u003eESBE VTS520 mixing valve\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eIf you want an adjustable change-over point, ESBE makes the VMD300 series, from 42 to 52 °C; contact us.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it need electricity?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. It works with thermostatic components only, according to ESBE.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I change the 45 °C change-over point?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNot on this model. The outlet temperature can be set from 35 to 60 °C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it work with a biomass boiler?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. ESBE proposes it for systems with a solid fuel boiler and a backup boiler.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is \u003cstrong\u003ein stock in Málaga\u003c\/strong\u003e and we dispatch it as soon as we confirm the order.\u003c\/p\u003e\n\u003ch3\u003eQ-Tech installation and support\u003c\/h3\u003e\n\u003cp\u003eQ-Tech integrates the VMC322 with the solar cylinder, the backup boiler and its valves in the \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003epre-assembled plant room\u003c\/a\u003e: the assembly arrives \u003cstrong\u003etested in our workshop and ready to connect\u003c\/strong\u003e. You can book \u003ca href=\"\/en-en\/products\/tecnico-experto-pre-montaje-nave\"\u003eworkshop pre-assembly\u003c\/a\u003e, an \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site hourly Expert Technician\u003c\/a\u003e or a \u003ca href=\"\/en-en\/products\/expert-technician-remote-technical-call\"\u003etechnical call\u003c\/a\u003e. See also our \u003ca href=\"\/en-en\/collections\/solar-termica\"\u003esolar thermal range\u003c\/a\u003e or message us on \u003ca href=\"https:\/\/wa.me\/qtechhouses\" target=\"_blank\" rel=\"noopener\"\u003eWhatsApp\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/36E8D905AED0CE2F2CDE6A51999C482C13957F88145DAAD6A3E84F53B4D08793\/5652b6d8c189437b9343d909bf5ec7be\/pdf\/media\/94f9e1b79d2c43e5bbbf9b2ddd665b6a\/VMC300_en_L_LR.pdf\" target=\"_blank\" rel=\"noopener\"\u003eESBE VMC300 series data sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/B06B9A1B39D9CB88B21084A62AFD786008211EDB686FCF744E986162DB9D487B\/be1690999fc644f397cd4ddf699972a6\/pdf\/media\/e4e87262b6774ad9b65aeb0520da6170\/Anv_VMC300_500_98140409_utgB_lr.pdf\" target=\"_blank\" rel=\"noopener\"\u003eVMC300 and VMC500 installation instructions (multilingual)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/7830B8CA4B80D88DDC0A1E242768BFFB8ABFC40935645AC5AD3BACBAF558D056\/ef48066b9a2444829fcbc4fdc8fd540a\/pdf\/media\/75f1a342b19346c5b5736084879571a5\/DoC_VMC300_E.pdf\" target=\"_blank\" rel=\"noopener\"\u003eVMC300 declaration of conformity\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and lead times:\u003c\/strong\u003e this item is in stock at our warehouse. Occasionally, depending on the time of year, the stock update may contain an error. If no units are available when you place your order, we will order it urgently and inform you immediately of the updated delivery time.\u003c\/p\u003e\n","brand":"ESBE","offers":[{"title":"Default Title","offer_id":59057175462232,"sku":"SE-CO10434","price":464.64,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/esbe-vmc322-kit-solar-45-c-g1-vista-tres-cuartos.webp?v=1793968828"},{"product_id":"viessmann-modulo-regulacion-solar-sm1-z014470","title":"Viessmann SM1 solar control module (KM-BUS) for Vitotronic","description":"\u003ch2\u003eSM1 module to integrate solar thermal into the Viessmann boiler control\u003c\/h2\u003e\n\u003cp\u003eThe Viessmann \u003cstrong\u003eSM1 solar control module\u003c\/strong\u003e controls the solar thermal collector system and is operated from the boiler's own \u003cstrong\u003eVitotronic\u003c\/strong\u003e control unit, connected over the \u003cstrong\u003eKM-BUS\u003c\/strong\u003e. This way the boiler only adds heat when the sun is not enough.\u003c\/p\u003e\n\u003ch3\u003eSummary\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eDifferential solar controller, KM-BUS subscriber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand and reference\u003c\/th\u003e\n\u003ctd\u003eViessmann SM1, ref. Z014470\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003eControl of the solar pump and of solar heating of the cylinder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible with\u003c\/th\u003e\n\u003ctd\u003e\n\u003ca href=\"\/en-en\/products\/caldera-de-gasoil-vitorondens-200t-br2a-viessmann\" title=\"Vitorondens 200-T BR2A\"\u003eVitorondens 200-T BR2A\u003c\/a\u003e and \u003ca href=\"\/en-en\/products\/viessmann-vitorondens-200-t-j2ra-oil-condensing-boiler\" title=\"Vitorondens 200-T J2RA\"\u003eJ2RA\u003c\/a\u003e; \u003ca href=\"\/en-en\/products\/viessmann-vitodens-200-w-b2ha-gas-condensing-boiler-49-99-kw\" title=\"Vitodens 200-W B2HA\"\u003eVitodens 200-W B2HA\u003c\/a\u003e with Vitotronic 100 or 200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQ-Tech installation\u003c\/th\u003e\n\u003ctd\u003eFitted and wired in a \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\" title=\"Advanced pre-assembly of plant rooms\"\u003epre-assembled plant room\u003c\/a\u003e or on-site by an Expert Technician\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePower supply\u003c\/th\u003e\n\u003ctd\u003e230 V~, 50 Hz, 1.5 W consumption\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCommunication\u003c\/th\u003e\n\u003ctd\u003eKM-BUS with the Vitotronic control unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFunctions\u003c\/th\u003e\n\u003ctd\u003eSpeed-controlled solar pump (PWM), two consumers with one collector array, thermostat function, cylinder temperature limit, collector safety shutdown, suppression of reheating by the boiler, heat statement and diagnostics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutputs\u003c\/th\u003e\n\u003ctd\u003e1(1) A 230 V~ relays, maximum 2 A in total; relay for an additional pump or valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncludes\u003c\/th\u003e\n\u003ctd\u003eModule, NTC 20 kΩ collector sensor, NTC 10 kΩ cylinder sensor, solar pump and KM-BUS cables, connectors and fuses\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProtection\u003c\/th\u003e\n\u003ctd\u003eIP 20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eViessmann list price (excluding VAT)\u003c\/th\u003e\n\u003ctd\u003e€597\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eSources: Viessmann price list of September 2026 (p. 130) and Viessmann installation instructions for the SM1.\u003c\/p\u003e\n\u003ch3\u003eCompatibility and limits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe Viessmann price list marks it for the \u003cstrong\u003eVitorondens 200-T\u003c\/strong\u003e, the \u003cstrong\u003eVitodens 200-W B2HA\u003c\/strong\u003e with Vitotronic 100 and 200 and the Vitocal heat pumps on the same page.\u003c\/li\u003e\n\u003cli\u003eIt is not suitable for wall-hung PlusBus Vitodens (050-W, 100-W, 111-W, 200-W B2HH and B2KH).\u003c\/li\u003e\n\u003cli\u003eSensor cable extension: 2-core, up to 60 m, 1.5 mm² copper.\u003c\/li\u003e\n\u003cli\u003eCommissioning of the solar control by the Viessmann technical service is priced separately in the price list.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include the sensors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes: an \u003cstrong\u003eNTC 20 kΩ collector sensor\u003c\/strong\u003e and an NTC 10 kΩ cylinder sensor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need another solar controller?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. It is displayed and adjusted from the boiler control unit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is in stock at our warehouse.\u003c\/p\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.viessmann.es\/es\/productos\/calderas-de-gasoleo\/vitorondens-200-t.html\" target=\"_blank\" rel=\"noopener\" title=\"Vitorondens 200-T on viessmann.es\"\u003eOfficial Vitorondens 200-T page at Viessmann Spain\u003c\/a\u003e (in Spanish).\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/vibooks.viessmann-climatesolutions.com\/es\/es\" target=\"_blank\" rel=\"noopener\" title=\"Viessmann Vibooks\"\u003eViessmann Vibooks\u003c\/a\u003e, with installation instructions by reference (in Spanish).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and lead times:\u003c\/strong\u003e this item is in stock at our warehouse. Occasionally, depending on the time of year, the stock update may contain an error. If no units are available when you place your order, we will order it urgently and inform you immediately of the updated delivery time.\u003c\/p\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":59070473699672,"sku":"VI-Z014470","price":496.63,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/viessmann-caja-mural-zk02941-sm1-z014470_c9263cfc-0e88-4dd3-bb8e-3fdb9489665c.webp?v=1794142920"},{"product_id":"bomba-circuladora-dab-evosta-2-sol","title":"DAB EVOSTA 2 SOL circulator pump for solar thermal systems","description":"\u003ch2\u003eElectronic circulator pump for solar thermal systems\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eDAB EVOSTA 2 SOL\u003c\/strong\u003e moves the fluid in the solar collector circuit with an electronic motor that adjusts its own power. It accepts \u003cstrong\u003eup to 50% glycol\u003c\/strong\u003e and peaks of \u003cstrong\u003e130 °C\u003c\/strong\u003e, and delivers \u003cstrong\u003e7.5 m head\u003c\/strong\u003e on 47 W. At Q-Tech we fit it in \u003cstrong\u003esolar stations and pre-assembled plant rooms\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eSummary\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eType\u003c\/th\u003e\u003ctd\u003eWet-rotor electronic circulator pump for solar thermal\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBrand and model\u003c\/th\u003e\u003ctd\u003eDAB EVOSTA 2 SOL 20-75 (130 or 180 mm)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eUse\u003c\/th\u003e\u003ctd\u003ePrimary circuit of solar thermal systems for heating and DHW\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaximum head\u003c\/th\u003e\u003ctd\u003e7.5 m\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eFlow\u003c\/th\u003e\u003ctd\u003eUp to 4 m³ per hour\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eCompatible with\u003c\/th\u003e\u003ctd\u003eClean water or water with up to 50% glycol\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower supply\u003c\/th\u003e\u003ctd\u003eSingle-phase 230 V, 50 or 60 Hz; 47 W maximum\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eQ-Tech installation\u003c\/th\u003e\u003ctd\u003eFitted in a pre-assembled plant room or replaced on site by an Expert Technician\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eWhat is the DAB EVOSTA 2 SOL?\u003c\/h3\u003e\n\u003cp\u003eIt is the solar-circuit version of DAB's EVOSTA 2. Its permanent-magnet synchronous motor runs on a wet rotor with an inverter that matches the pump to the system and protects it from water hammer. Modes are selected with a single button.\u003c\/p\u003e\n\u003ch3\u003eWhat problem does it solve?\u003c\/h3\u003e\n\u003cp\u003eThe solar circuit runs a water-glycol mix and reaches very high temperatures when the collectors have no load. A standard heating circulator cannot always cope.\u003c\/p\u003e\n\u003cp\u003eThe EVOSTA 2 SOL \u003cstrong\u003eaccepts up to 50% glycol and 130 °C peaks\u003c\/strong\u003e and draws at most 47 W. DAB states an energy efficiency index of \u003cstrong\u003eEEI ≤ 0.20\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eLiquid temperature\u003c\/th\u003e\u003ctd\u003e−10 to +110 °C, with 130 °C peaks (up to 60 °C ambient)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaximum working pressure\u003c\/th\u003e\u003ctd\u003e10 bar (1,000 kPa)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMinimum inlet pressure\u003c\/th\u003e\u003ctd\u003e10 m water column at 90 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower input (P1)\u003c\/th\u003e\u003ctd\u003e47 W maximum; 0.07 to 0.4 A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eEnergy efficiency index\u003c\/th\u003e\u003ctd\u003eEEI ≤ 0.20\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eInsulation\u003c\/th\u003e\u003ctd\u003eClass F\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eElectrical connection\u003c\/th\u003e\u003ctd\u003eMolex connector with 1.5 m cable\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaterials\u003c\/th\u003e\u003ctd\u003eCataphoresis-coated cast-iron body, stainless steel motor casing, technopolymer impeller\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eOther\u003c\/th\u003e\u003ctd\u003eBleed screw with shaft access, cartridge that protects the shaft from limescale\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMounting\u003c\/th\u003e\u003ctd\u003eMotor shaft horizontal\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eModels and data by variant\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eModel\u003c\/th\u003e\u003cth\u003ePump connection\u003c\/th\u003e\u003cth\u003ePort-to-port length\u003c\/th\u003e\u003cth\u003eMax. head\u003c\/th\u003e\u003cth\u003eMax. power\u003c\/th\u003e\u003cth\u003eDAB code\u003c\/th\u003e\u003cth\u003eWeight\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003e20-75\/130 ½\" (G 1\")\u003c\/th\u003e\u003ctd\u003eG 1\" (DN15)\u003c\/td\u003e\u003ctd\u003e130 mm\u003c\/td\u003e\u003ctd\u003e7.5 m\u003c\/td\u003e\u003ctd\u003e47 W\u003c\/td\u003e\u003ctd\u003e60188450\u003c\/td\u003e\u003ctd\u003e1.91 kg\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003e20-75\/130 (G 1½\")\u003c\/th\u003e\u003ctd\u003eG 1½\" (DN25)\u003c\/td\u003e\u003ctd\u003e130 mm\u003c\/td\u003e\u003ctd\u003e7.5 m\u003c\/td\u003e\u003ctd\u003e47 W\u003c\/td\u003e\u003ctd\u003e60188404\u003c\/td\u003e\u003ctd\u003e2.07 kg\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003e20-75\/180 (G 1½\")\u003c\/th\u003e\u003ctd\u003eG 1½\" (DN25)\u003c\/td\u003e\u003ctd\u003e180 mm\u003c\/td\u003e\u003ctd\u003e7.5 m\u003c\/td\u003e\u003ctd\u003e47 W\u003c\/td\u003e\u003ctd\u003e60188405\u003c\/td\u003e\u003ctd\u003e2.24 kg\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eCompatibility and limits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eUnions not included\u003c\/strong\u003e: order them separately to suit your pipework.\u003c\/li\u003e\n\u003cli\u003eClean liquid, free of solids and mineral oils; up to 50% glycol.\u003c\/li\u003e\n\u003cli\u003eMount only with the motor shaft horizontal.\u003c\/li\u003e\n\u003cli\u003eThis is not the PWM version: it runs by itself, without a signal from the solar controller.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen this product is not the right choice\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eProduct\u003c\/th\u003e\u003cth\u003eWhen to choose it\u003c\/th\u003e\u003cth\u003eMax. head\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003e\u003ca href=\"\/en-en\/products\/dab-evosta-2-circulator-pump\"\u003eDAB EVOSTA 2\u003c\/a\u003e\u003c\/th\u003e\u003ctd\u003eHeating or underfloor heating circuit, with no solar collectors\u003c\/td\u003e\u003ctd\u003e6.9 m\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003e\u003ca href=\"\/en-en\/products\/dab-evosta-2-san-hot-water-circulator-pump\"\u003eDAB EVOSTA 2 SAN\u003c\/a\u003e\u003c\/th\u003e\u003ctd\u003eDomestic hot water return (bronze body)\u003c\/td\u003e\u003ctd\u003e1.1 to 8 m\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhich model do I need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe one with the same port-to-port length (130 or 180 mm) and the same thread (1\" or 1½\") as your current pump.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it controlled by the solar controller?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis model runs by itself on its internal modes. DAB offers a PWM version that runs on the controller's signal; it is not the one in this listing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is in stock at our warehouse; if none were left, we would order it urgently and tell you the lead time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWho should install it?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eQualified professionals must make the plumbing and electrical connections.\u003c\/p\u003e\n\u003ch3\u003eQ-Tech installation and support\u003c\/h3\u003e\n\u003cp\u003eQ-Tech fits and tests the pump in our workshop as part of a \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003epre-assembled plant room\u003c\/a\u003e, which arrives \u003cstrong\u003etested and ready to connect\u003c\/strong\u003e. To replace the pump in your solar system, book an \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site Expert Technician by the hour\u003c\/a\u003e; if you are unsure which model fits, request a \u003ca href=\"\/en-en\/products\/expert-technician-remote-technical-call\"\u003etechnical call\u003c\/a\u003e. More equipment in \u003ca href=\"\/en-en\/collections\/dab-circulator-pumps\"\u003eDAB circulator pumps\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/dabpumps.es\/sites\/dabpumps.es\/files\/2026-11\/Evosta2%20Sol%20-%20Cat%C3%A1logo.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDAB EVOSTA 2 SOL catalogue, November 2026 (in Spanish)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.dabpumps.com\/content\/dam\/dabpumps-dam\/products\/dab\/eng_master\/electronic_circulators1\/evosta_2_sol\/documentation\/r-d-documentation\/instruction-manual\/evosta_2sol_dab_instruction_manual_web_version_multi_60187640.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDAB EVOSTA 2 SOL instruction manual (multilingual)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and lead times:\u003c\/strong\u003e this item is in stock at our warehouse. Occasionally, depending on the time of year, the stock update may contain an error. If no units are available when you place your order, we will order it urgently and inform you immediately of the updated delivery time.\u003c\/p\u003e\n","brand":"DAB","offers":[{"title":"20-75\/130 ½\" (G 1\")","offer_id":59094332211544,"sku":"SE-AC41435","price":328.16,"currency_code":"EUR","in_stock":true},{"title":"20-75\/130 (G 1½\")","offer_id":59094332244312,"sku":"SE-AC41449","price":328.16,"currency_code":"EUR","in_stock":true},{"title":"20-75\/180 (G 1½\")","offer_id":59094332277080,"sku":"SE-AC41450","price":328.16,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/dab-evosta-2-sol-bomba-circuladora-solar.webp?v=1794396164"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/collections\/TERMICA1_COLLECTION_2023_2880x1620_1adf0012-05c0-4e65-a69b-77b4b9ee0465.webp?v=1678624049","url":"https:\/\/q-tech.es\/en-en\/collections\/solar-termica.oembed?page=2","provider":"Q-Tech ® ","version":"1.0","type":"link"}