{"product_id":"vaillant-vaillant-l-w-s-w-w-w-warmepumpe-8-kw-flexotherm-vwf-87-4-innen-aufgestellt-0010016421-verkaufseinheit-1-stuck","title":"VAILLANT Vaillant A\/W, B\/W, W\/W Heat Pump 8 kW flexoTHERM VWF 87\/4 Indoor Installation – 0010016421 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 rgba(0,0,0,.4);display:block}.sv-dach-body{min-width:0}.sv-dach-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:5px}.sv-dach-head b{font-size:16.5px;font-weight:700;color:#fff}.sv-dach-tag{font-size:10px;font-weight:700;letter-spacing:.12em;color:#fff;background:#dc2626;border-radius:999px;padding:4px 10px;line-height:1}.sv-dach-sub{display:block;font-size:13px;line-height:1.55;color:rgba(255,255,255,.66)}@media(max-width:600px){.sv-dach{flex-direction:column;align-items:flex-start;gap:14px;padding:16px 18px}}.sv-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:28px}@media(max-width:600px){.sv-stats{grid-template-columns:repeat(2,1fr)}}.sv-stat{background:#0c0c0c;border-radius:12px;padding:20px 16px;text-align:center}.sv-stat-val{font-size:26px;font-weight:700;color:#fff;line-height:1.1}.sv-stat-val span{font-size:15px;font-weight:400;color:rgba(255,255,255,0.5)}.sv-stat-label{font-size:12px;color:rgba(255,255,255,0.4);margin-top:6px}.sv-section{margin-bottom:28px}.sv-section-title{font-size:18px;font-weight:700;color:#0c0c0c;margin:0 0 16px;padding-left:14px;border-left:3px solid #dc2626}.sv-features{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}@media(max-width:600px){.sv-features{grid-template-columns:1fr}}.sv-feature{background:#f8f8f8;border-radius:12px;padding:20px;display:flex;align-items:flex-start;gap:14px}.sv-feature-icon{min-width:40px;height:40px;border-radius:10px;background:rgba(220,38,38,0.08);display:flex;align-items:center;justify-content:center;font-size:18px;color:#dc2626}.sv-feature h4{font-size:14px;font-weight:600;color:#1a1a1a;margin:0 0 4px}.sv-feature p{font-size:13px;color:#666;margin:0;line-height:1.5}.sv-table-wrap{border:1px solid #e5e5e5;border-radius:12px;overflow:hidden;margin-bottom:16px}.sv-table{width:100%;border-collapse:collapse;font-size:14px}.sv-table thead th{background:#0c0c0c;color:#fff;font-weight:600;padding:14px 18px;text-align:left;font-size:13px}.sv-table tbody tr{border-bottom:1px solid #f0f0f0}.sv-table tbody tr:last-child{border-bottom:none}.sv-table tbody tr:nth-child(even){background:#fafafa}.sv-table td{padding:12px 18px;color:#333}.sv-table td:first-child{font-weight:500;color:#1a1a1a;width:52%}.sv-highlight{color:#dc2626;font-weight:600}.sv-badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}.sv-badge{display:inline-flex;align-items:center;gap:6px;background:#f0f0f0;border-radius:8px;padding:8px 14px;font-size:12px;font-weight:500;color:#333}.sv-badge-dot{width:6px;height:6px;border-radius:50%;background:#22c55e}.sv-note{background:#fff8e6;border:1px solid #efd9a0;border-radius:12px;padding:18px 20px;font-size:13.5px;line-height:1.65;color:#5c4a1c;margin-bottom:28px}.sv-note 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\"\u003e8.82 \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\"\u003e4.84 \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 Also, connection fittings and the flow sensors VR 10 according to the hydraulic diagram. For air operation, the aroCOLLECT air collector is also required. We can put together a suitable package 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 outside 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\u003eA+++ at 35 °C\u003c\/h4\u003e\n\n\u003cp\u003e202 % space heating efficiency in brine mode, 8.82 kW at B0\/W35 with a COP of 4.84. In water mode, it's 5.17 at W10\/W35.\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 through 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 are 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\u003eSound Safe System\u003c\/h4\u003e\n\n\u003cp\u003e42.4 dB(A) sound power at B0\/W35 – quiet enough for the technical room in a residential building.\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\u003eIntegrated meter ex works\u003c\/h4\u003e\n\n\u003cp\u003eHeat quantity meter and electricity meter are installed as standard. The seasonal performance factor can thus be verified 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 offers a 10-year material guarantee on the scroll compressor. Details are regulated 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\u003eOutput \/ Input \/ COP or EER\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\"\u003e8.82 kW \/ 1.82 kW \/ 4.84\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\u003e8.94 kW \/ 2.78 kW \/ 3.22\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eWater W10\/W35\u003c\/td\u003e\n\n\u003ctd class=\"sv-highlight\"\u003e9.94 kW \/ 1.92 kW \/ 5.17\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eWater W10\/W55\u003c\/td\u003e\n\n\u003ctd\u003e10.28 kW \/ 2.96 kW \/ 3.47\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eAir A7\/W35\u003c\/td\u003e\n\n\u003ctd\u003e8.74 kW \/ 1.91 kW \/ 4.58\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eAir A2\/W35\u003c\/td\u003e\n\n\u003ctd\u003e7.79 kW \/ 1.99 kW \/ 3.91\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eAir A−7\/W35\u003c\/td\u003e\n\n\u003ctd\u003e6.45 kW \/ 2.01 kW \/ 3.21\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eAir A7\/W55\u003c\/td\u003e\n\n\u003ctd\u003e9.45 kW \/ 2.95 kW \/ 3.21\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eCooling A35\/W18\u003c\/td\u003e\n\n\u003ctd\u003e8.52 kW \/ 2.73 kW \/ EER 3.12\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\"\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\u003eEnergy efficiency class 35 °C \/ 55 °C\u003c\/td\u003e\n\n\u003ctd class=\"sv-highlight\"\u003eA+++ \/ A++\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSpace heating efficiency ηs 35 °C (brine \/ air)\u003c\/td\u003e\n\n\u003ctd\u003e202 % \/ 165 %\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSpace heating efficiency ηs 55 °C\u003c\/td\u003e\n\n\u003ctd\u003e147 %\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eHeating output partial load point A (Tj −7 °C) W35\u003c\/td\u003e\n\n\u003ctd\u003e8.8 kW\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eRefrigerant \/ charge \/ GWP\u003c\/td\u003e\n\n\u003ctd\u003eR410A \/ 2.4 kg \/ 2.088\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\u003ePower consumption including auxiliary heating (max)\u003c\/td\u003e\n\n\u003ctd\u003e12.8 kW\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003ePower 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\u003eFusing\u003c\/td\u003e\n\n\u003ctd\u003e3 × 25 A slow-blow\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSound power level B0\/W35 \/ A7\/W35 \/ W10\/W35\u003c\/td\u003e\n\n\u003ctd\u003e42.4 \/ 45.8 \/ 47.9 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 net \/ ready for operation\u003c\/td\u003e\n\n\u003ctd\u003e160 kg \/ 167 kg\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eContent heating water \/ heat transfer fluid\u003c\/td\u003e\n\n\u003ctd\u003e3.9 l \/ 3.1 l\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\u003eStarting current with limiter\u003c\/td\u003e\n\n\u003ctd\u003e19.0 A\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMinimum volume of installation room according to EN 378\u003c\/td\u003e\n\n\u003ctd\u003e5.45 m³\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 by 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, S\/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. Practical if it is not yet certain at the time of purchase whether the drilling permit will be granted.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"sv-faq-item\"\u003e\u003csummary\u003eWhich source is the most efficient?\u003c\/summary\u003e\u003cp\u003eGroundwater: 5.17 COP at W10\/W35. Brine follows with 4.84 at B0\/W35, air with 4.58 at A7\/W35. The difference becomes greater at low outside temperatures – soil and groundwater remain constant, air does not.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"sv-faq-item\"\u003e\u003csummary\u003eWhy R410A and not R290?\u003c\/summary\u003e\u003cp\u003eThe flexoTHERM comes from an older series and works with R410A (GWP 2.088, 2.4 kg filling quantity). For this, it offers the source flexibility that is not available with the new R290 monoblocks. If you prioritize a natural refrigerant, the aroTHERM plus is a better choice.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"sv-faq-item\"\u003e\u003csummary\u003eCan it also cool?\u003c\/summary\u003e\u003cp\u003eYes, actively with 8.52 kW at A35\/W18. In brine mode, passive cooling via the ground is also possible – this only costs electricity for the circulation pumps.\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 solarvic.at – as a specialist dealer and installer, we deliver throughout Austria and advise on 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\":\"Welche Quelle ist die effizienteste?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Grundwasser mit COP 5,17 bei W10\/W35, dann Sole mit 4,84 bei B0\/W35, dann Luft mit 4,58 bei A7\/W35.\"}},{\"@type\":\"Question\",\"name\":\"Kann sie auch kuehlen?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Ja, aktiv mit 8,52 kW bei A35\/W18. Im Solebetrieb zusaetzlich passives Kuehlen ueber das Erdreich.\"}}]}\u003c\/script\u003e","brand":"VAILLANT","offers":[{"title":"Default Title","offer_id":56294462062923,"sku":"VA0010016421","price":10596.57,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/5075\/6427\/files\/736ae89ceed4f98e1f0342b7b6999726.webp?v=1768552429","url":"https:\/\/solarvic.at\/en\/products\/vaillant-vaillant-l-w-s-w-w-w-warmepumpe-8-kw-flexotherm-vwf-87-4-innen-aufgestellt-0010016421-verkaufseinheit-1-stuck","provider":"SOLARVIC | Photovoltaik \u0026 Haustechnik","version":"1.0","type":"link"}