{"product_id":"vaillant-vaillant-l-w-s-w-w-w-warmepumpe-15-kw-flexotherm-vwf-157-4-innen-aufgestellt-0010016423-verkaufseinheit-1-stuck","title":"VAILLANT Vaillant Air\/Water, Brine\/Water, Water\/Water Heat Pump 15 kW flexoTHERM VWF 157\/4 Indoor Installation - 0010016423 DACH Version","description":"\u003cstyle\u003e@import url('https:\/\/fonts.googleapis.com\/css2?family=DM+Sans:wght@400;500;600;700\u0026display=swap');.sv-product{font-family:'DM Sans',sans-serif;color:#1a1a1a;max-width:900px;margin:0 auto;line-height:1.6}.sv-dach{display:flex;align-items:center;gap:18px;background:linear-gradient(135deg,#0f0f0f,#282828);border:1px solid rgba(255,255,255,.09);border-radius:14px;padding:18px 22px;margin-bottom:26px}.sv-dach-flags{flex:0 0 auto;display:flex;gap:7px}.sv-dach-flags svg{width:32px;height:22px;border-radius:3px;box-shadow:0 0 0 1px rgba(255,255,255,.3),0 2px 6px 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strong{color:#3d3210}.sv-seo{font-size:14px;color:#555;line-height:1.8;margin-top:32px;padding-top:24px;border-top:1px solid #eee}.sv-seo h4{font-size:15px;font-weight:600;color:#1a1a1a;margin:20px 0 8px}.sv-faq{margin-top:0;padding-top:0;border-top:none}.sv-faq-item{background:#f8f8f8;border-radius:12px;padding:20px;margin-bottom:12px}.sv-faq-item summary{font-size:14px;font-weight:600;color:#1a1a1a;cursor:pointer;list-style:none;display:flex;align-items:center;gap:10px}.sv-faq-item summary::-webkit-details-marker{display:none}.sv-faq-item summary::before{content:'';display:inline-block;width:8px;height:8px;border-right:2px solid #dc2626;border-bottom:2px solid #dc2626;transform:rotate(-45deg);transition:transform 0.2s;flex-shrink:0}.sv-faq-item[open] summary::before{transform:rotate(45deg)}.sv-faq-item p{font-size:13px;color:#555;margin:12px 0 0 18px;line-height:1.7}\u003c\/style\u003e\n\u003cdiv class=\"sv-product\"\u003e\n\n\u003cdiv class=\"sv-dach\"\u003e\n\n\u003cspan class=\"sv-dach-flags\"\u003e\u003csvg viewbox=\"0 0 30 21\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003crect width=\"30\" height=\"7\" fill=\"#000000\"\u003e\u003c\/rect\u003e\u003crect y=\"7\" width=\"30\" height=\"7\" fill=\"#DD0000\"\u003e\u003c\/rect\u003e\u003crect y=\"14\" width=\"30\" height=\"7\" fill=\"#FFCE00\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\u003csvg viewbox=\"0 0 30 21\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003crect width=\"30\" height=\"21\" fill=\"#ED2939\"\u003e\u003c\/rect\u003e\u003crect y=\"7\" width=\"30\" height=\"7\" fill=\"#FFFFFF\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\u003csvg viewbox=\"0 0 30 21\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003crect width=\"30\" height=\"21\" fill=\"#D52B1E\"\u003e\u003c\/rect\u003e\u003crect x=\"13\" y=\"4.5\" width=\"4\" height=\"12\" fill=\"#FFFFFF\"\u003e\u003c\/rect\u003e\u003crect x=\"9\" y=\"8.5\" width=\"12\" height=\"4\" fill=\"#FFFFFF\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\u003c\/span\u003e\n\u003cspan class=\"sv-dach-body\"\u003e\u003cspan class=\"sv-dach-head\"\u003e\u003cb\u003eDACH Version\u003c\/b\u003e\u003cspan class=\"sv-dach-tag\"\u003eGermany · Austria · Switzerland\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"sv-dach-sub\"\u003eControl and documentation in German, mains connection 400 V \/ 50 Hz according to Central European standard – usable in all three countries.\u003c\/span\u003e\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-stats\"\u003e\n\n\u003cdiv class=\"sv-stat\"\u003e\n\n\u003cdiv class=\"sv-stat-val\"\u003e14.39 \u003cspan\u003ekW\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-stat-label\"\u003eHeating output at B0\/W35\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-stat\"\u003e\n\n\u003cdiv class=\"sv-stat-val\"\u003e4.69 \u003cspan\u003eCOP\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-stat-label\"\u003eCoefficient of Performance at B0\/W35\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-stat\"\u003e\n\n\u003cdiv class=\"sv-stat-val\"\u003e3 \u003cspan\u003eSources\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-stat-label\"\u003eBrine, Water or Air\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-stat\"\u003e\n\n\u003cdiv class=\"sv-stat-val\"\u003e65 \u003cspan\u003e°C\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-stat-label\"\u003eFlow temperature without auxiliary heating\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-note\"\u003e\n\n\u003cstrong\u003ePlease note: The controller must be ordered separately.\u003c\/strong\u003e The same applies to connection fittings and the VR 10 sensors according to the hydraulic diagram. For air operation, the aroCOLLECT air collector is also added. We can put together the right package for you on request.\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-section\"\u003e\n\n\u003ch3 class=\"sv-section-title\"\u003eAdvantages at a glance\u003c\/h3\u003e\n\n\u003cdiv class=\"sv-features\"\u003e\n\n\u003cdiv class=\"sv-feature\"\u003e\n\n\u003cdiv class=\"sv-feature-icon\"\u003e🔄\u003c\/div\u003e\n\n\u003cdiv\u003e\n\n\u003ch4\u003eOne machine, three heat sources\u003c\/h4\u003e\n\n\u003cp\u003eBrine, groundwater or ambient air – the flexoTHERM works with all three. The source can be determined after the drilling permit, not before.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-feature\"\u003e\n\n\u003cdiv class=\"sv-feature-icon\"\u003e⚡\u003c\/div\u003e\n\n\u003cdiv\u003e\n\n\u003ch4\u003eCOP 4.69 in brine operation\u003c\/h4\u003e\n\n\u003cp\u003e14.39 kW heating output at B0\/W35. At 55 °C flow temperature, it is 14.65 kW with a COP of 3.14 – enough for existing systems with radiators.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-feature\"\u003e\n\n\u003cdiv class=\"sv-feature-icon\"\u003e🏠\u003c\/div\u003e\n\n\u003cdiv\u003e\n\n\u003ch4\u003eLargest performance class\u003c\/h4\u003e\n\n\u003cp\u003eWith 15 kW, the 157\/4 covers large single-family homes, multi-family homes and commercial properties.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-feature\"\u003e\n\n\u003cdiv class=\"sv-feature-icon\"\u003e🌡️\u003c\/div\u003e\n\n\u003cdiv\u003e\n\n\u003ch4\u003e65 °C flow temperature thanks to EVI\u003c\/h4\u003e\n\n\u003cp\u003eThe intermediate injection keeps the flow temperature high even at low source temperatures. With auxiliary heating, up to 75 °C is possible.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-feature\"\u003e\n\n\u003cdiv class=\"sv-feature-icon\"\u003e📈\u003c\/div\u003e\n\n\u003cdiv\u003e\n\n\u003ch4\u003eMeter integrated ex works\u003c\/h4\u003e\n\n\u003cp\u003eHeat quantity meter and electricity meter are installed as standard. The annual performance factor can thus be proven without additional technology.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-feature\"\u003e\n\n\u003cdiv class=\"sv-feature-icon\"\u003e📜\u003c\/div\u003e\n\n\u003cdiv\u003e\n\n\u003ch4\u003e10 years on the compressor\u003c\/h4\u003e\n\n\u003cp\u003eVaillant provides a 10-year material guarantee on the scroll compressor. Details are governed by the warranty conditions.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-section\"\u003e\n\n\u003ch3 class=\"sv-section-title\"\u003ePerformance \u0026amp; efficiency according to EN 14511\u003c\/h3\u003e\n\n\u003cdiv class=\"sv-table-wrap\"\u003e\u003ctable class=\"sv-table\"\u003e\n\n\u003cthead\u003e\u003ctr\u003e\n\n\u003cth\u003eOperating point\u003c\/th\u003e\n\n\u003cth\u003ePerformance \/ COP\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBrine B0\/W35\u003c\/td\u003e\n\n\u003ctd class=\"sv-highlight\"\u003e14.39 kW \/ 4.69\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBrine B0\/W55\u003c\/td\u003e\n\n\u003ctd\u003e14.65 kW \/ 3.14\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\u003c\/div\u003e\n\n\u003cp style=\"font-size:13px;color:#555;margin-top:12px\"\u003ePerformance data for air and water operation depend on the selected source and the design. The complete data sheet can be downloaded above.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-section\"\u003e\n\n\u003ch3 class=\"sv-section-title\"\u003eTechnical data\u003c\/h3\u003e\n\n\u003cdiv class=\"sv-table-wrap\"\u003e\u003ctable class=\"sv-table\"\u003e\n\n\u003cthead\u003e\u003ctr\u003e\n\n\u003cth\u003eParameter\u003c\/th\u003e\n\n\u003cth\u003eValue\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eType of construction\u003c\/td\u003e\n\n\u003ctd class=\"sv-highlight\"\u003eIndoor installation, brine\/water\/air\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eCompressor\u003c\/td\u003e\n\n\u003ctd\u003eScroll with EVI intermediate injection\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eRefrigerant\u003c\/td\u003e\n\n\u003ctd\u003eR410A\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eElectric auxiliary heating\u003c\/td\u003e\n\n\u003ctd\u003e9.0 kW, multi-stage\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eVoltage supply compressor \/ controller\u003c\/td\u003e\n\n\u003ctd\u003e400 V \/ 230 V (50 Hz)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSound power level at B0\/W35\u003c\/td\u003e\n\n\u003ctd\u003e50 dB(A)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eHeating and heat source connection\u003c\/td\u003e\n\n\u003ctd\u003eG 1½″\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eDimensions (H × W × D)\u003c\/td\u003e\n\n\u003ctd\u003e1,183 × 595 × 600 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eWeight\u003c\/td\u003e\n\n\u003ctd\u003e176 kg\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eIntegrated meters\u003c\/td\u003e\n\n\u003ctd\u003eHeat quantity and electricity meters\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-section\"\u003e\n\n\u003ch3 class=\"sv-section-title\"\u003eOperating limits\u003c\/h3\u003e\n\n\u003cdiv class=\"sv-table-wrap\"\u003e\u003ctable class=\"sv-table\"\u003e\n\n\u003cthead\u003e\u003ctr\u003e\n\n\u003cth\u003eParameter\u003c\/th\u003e\n\n\u003cth\u003eValue\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eFlow temperature heating mode\u003c\/td\u003e\n\n\u003ctd class=\"sv-highlight\"\u003e25 – 65 °C\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eFlow temperature with auxiliary heating\u003c\/td\u003e\n\n\u003ctd\u003e25 – 75 °C\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eOperating pressure heating circuit and heat source\u003c\/td\u003e\n\n\u003ctd\u003emax. 3 bar\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\n\u003ctd\u003eIndoor installation\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-section\"\u003e\n\n\u003ch3 class=\"sv-section-title\"\u003eScope of delivery\u003c\/h3\u003e\n\n\u003cdiv class=\"sv-badges\"\u003e\n\n\u003cspan class=\"sv-badge\"\u003e\u003cspan class=\"sv-badge-dot\"\u003e\u003c\/span\u003eflexoTHERM exclusive with casing\u003c\/span\u003e\n\u003cspan class=\"sv-badge\"\u003e\u003cspan class=\"sv-badge-dot\"\u003e\u003c\/span\u003eBrine circuit safety valve ½″, 3 bar\u003c\/span\u003e\n\u003cspan class=\"sv-badge\"\u003e\u003cspan class=\"sv-badge-dot\"\u003e\u003c\/span\u003eInternet module\u003c\/span\u003e\n\u003cspan class=\"sv-badge\"\u003e\u003cspan class=\"sv-badge-dot\"\u003e\u003c\/span\u003eInstructions and warranty card\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-seo sv-faq\"\u003e\n\n\u003ch4\u003eFrequently asked questions\u003c\/h4\u003e\n\n\u003cdetails class=\"sv-faq-item\"\u003e\u003csummary\u003eWhat does the DACH version mean?\u003c\/summary\u003e\u003cp\u003eThe device, control system and documentation are designed for the German-speaking area: Menu navigation and documentation in German, mains connection 400 V \/ 50 Hz. This means the heat pump can be used equally in Germany, Austria and Switzerland. Subsidies and registration requirements differ per country – your local installer will clarify this.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"sv-faq-item\"\u003e\u003csummary\u003eWhat do L\/W, B\/W and W\/W mean?\u003c\/summary\u003e\u003cp\u003eThe flexoTHERM works with three heat sources: air (via the aroCOLLECT air collector), brine (ground collector or deep bore) and groundwater. The device itself remains the same – only the source changes.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"sv-faq-item\"\u003e\u003csummary\u003eWhich buildings is the 15 kW size designed for?\u003c\/summary\u003e\u003cp\u003e14.39 kW at B0\/W35 covers large single-family homes, two- and multi-family homes or smaller commercial properties. For geothermal energy, the extraction capacity of the ground also counts – the drilling depth is part of the drilling company's planning.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"sv-faq-item\"\u003e\u003csummary\u003eWhat do I need in addition to the device?\u003c\/summary\u003e\u003cp\u003eThe system controller, connection fittings and the VR 10 sensors according to the hydraulic diagram. In addition, the heat source itself – ground probe, ground collector, well or aroCOLLECT – as well as a hot water tank.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"sv-faq-item\"\u003e\u003csummary\u003eWhere can I buy the Vaillant heat pump?\u003c\/summary\u003e\u003cp\u003eAt SOLARVIC on sularvic.com – as a specialist dealer and installer, we deliver throughout Austria and advise on the design. For orders over €5,000, shipping within Austria is free.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Was bedeutet die DACH Version?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Regelung und Dokumentation in Deutsch, Netzanschluss 400 V \/ 50 Hz - einsetzbar in Deutschland, Oesterreich und der Schweiz.\"}},{\"@type\":\"Question\",\"name\":\"Was heisst L\/W, S\/W und W\/W?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Die flexoTHERM arbeitet mit Luft ueber aroCOLLECT, Sole oder Grundwasser als Waermequelle - dasselbe Geraet fuer alle drei.\"}},{\"@type\":\"Question\",\"name\":\"Fuer welche Gebaeude ist die 15-kW-Groesse gedacht?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"14,39 kW bei B0\/W35 decken grosse Ein- und Mehrfamilienhaeuser oder kleinere Gewerbeobjekte ab.\"}}]}\u003c\/script\u003e","brand":"VAILLANT","offers":[{"title":"Default Title","offer_id":56294462947659,"sku":"VA0010016423","price":13002.38,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/5075\/6427\/files\/9966a7b5111a3dd2709c40fac485f91f.webp?v=1768552430","url":"https:\/\/sularvic.com\/en\/products\/vaillant-vaillant-l-w-s-w-w-w-warmepumpe-15-kw-flexotherm-vwf-157-4-innen-aufgestellt-0010016423-verkaufseinheit-1-stuck","provider":"SOLARVIC | Photovoltaik \u0026 Haustechnik","version":"1.0","type":"link"}