VAILLANT Package 1.734/3 ecoTEC plus VC 15 CS/1-5, VRC 720/3, Connection Accessories Product advantages: - Standard efficiency 98% (Hs) / 109% (Hi) - Modulation up to 1:8 - Self-adapting combustion control to compensate for gas quality fluctuations and for proactive appliance analysis - IoniDetect combustion control system for all gas types - New, modern design and compact appliance dimensions for easy heater replacement - Illuminated graphic display with operation via touch elements - Display for setting and monitoring internal - appliance functions and for operating the single-circuit controller sensoDIRECT 710 - Comfort protection program for a reliable heat supply Features: - High-efficiency pump - Water pressure sensor, volume flow sensor, manometer, 10 liter ADG, safety valve, compression fitting gas connection - Integral condensing heat exchanger made of stainless steel - Control of an external heating circuit/ circulation pump and a cylinder charging circuit integrated - Priority diverter valve - eBUS interface - Illuminated graphic display with touch controls - Integrated diagnostic interface Heating output at 50/30 °C natural gas E, natural gas LL (Min - Max) 3.4-16.4 kW Heating output at 80/60 °C natural gas E, natural gas LL (Min - Max) 3.0-14.8 kW Heating output in domestic hot water mode natural gas E, natural gas LL (Max) 20 kW Seasonal space heating efficiency ETA S 93% Cylinder charging capacity max. 20 kW Standard efficiency Hs/Hi 109 % Flow/return connection G 3/4 Gas connection Diameter 20 mm Height/Width/Depth 720 mm 440 mm 348 mm Weight (empty) 34 kg Water content 2.1 l DVGW product ID no. II2N3P 1 x 0010043897 VC 15 CS/1-5 1 x 0010045478 sensoCOMFORT VRC 720/3 1 x 0020201897 VC installation set, new installation Package Energy Efficiency Class Heating A (A+++ - G) Order no. 8000016514
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