Vaillant ecoTEC sustain 24 Installation And Maintenance Instructions Manual

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0020253094_05 ecoTEC sustain Installation and maintenance instructions 9Technical data – G31VUW 246/7-2 (H-GB)VUW 286/7-2 (H-GB)VUW 346/7-2 (H-GB)Effective output range (P) at 50/30 °C 7.0 to 20.1 kW 8.0 to 20.1 kW 9.1 to 19.9 kWEffective output range (P) at 80/60 °C 6.4 to 18.5 kW 7.4 to 18.5 kW 8.4 to 18.5 kWHeat output range – domestic hot wa-ter or cylinder reheating (P)6.6 to 24.3 kW 7.5 to 28.1 kW 8.4 to 34.0 kWMaximum heat input – heating (Qmax.)18.7 kW 18.7 kW 18.7 kWMinimum heat input – heating (Q min.) 6.6 kW 7.6 kW 8.6 kWMaximum heat input – Domestic hotwater or cylinder reheating (Q max.)24.4 kW 28.5 kW 34.6 kWMinimum heat input – Domestic hotwater or cylinder reheating (Q min.)6.6 kW 7.6 kW 8.6 kWTechnical data – HeatingVUW 246/7-2 (H-GB)VUW 286/7-2 (H-GB)VUW 346/7-2 (H-GB)Maximum flow temperature 85 ℃ 85 ℃ 85 ℃Max. flow temperature adjustmentrange (factory setting: 75 °C)30 to 80 ℃ 30 to 80 ℃ 30 to 80 ℃Safety discharge of expansion reliefvalve0.3 MPa(3.0 bar)0.3 MPa(3.0 bar)0.3 MPa(3.0 bar)Maximum operating pressure 0.25 MPa(2.50 bar)0.25 MPa(2.50 bar)0.25 MPa(2.50 bar)Nominal water flow (ΔT = 20 K) 797 l/h 797 l/h 797 l/hΔP heating at nominal flow (ΔT = 20K), bypass closed0.024 MPa 0.024 MPa 0.026 MPaΔP heating at nominal flow (ΔT = 20K), bypass in the position set at thefactory0.043 MPa 0.043 MPa 0.050 MPaApproximate value for the condensatevolume (pH value between 3.5 and4.0) at 50/30 °C1.87 l/h 1.87 l/h 1.87 l/hExpansion vessel capacity 8.0 l 8.0 l 8.0 lMaximum heat output (factory setting– d.00)Auto Auto AutoTechnical data – Domestic hot waterVUW 246/7-2 (H-GB)VUW 286/7-2 (H-GB)VUW 346/7-2 (H-GB)Minimum water flow 1.7 l/min 1.7 l/min 1.7 l/minSpecific flow rate (D) (ΔT = 30 K) inaccordance with EN 1320311.5 l/min 13.5 l/min 16.5 l/minSpecific flow rate (ΔT = 35 K) 9.9 l/min 11.6 l/min 14.1 l/minMinimum permissible pressure 0.03 MPa(0.30 bar)0.03 MPa(0.30 bar)0.03 MPa(0.30 bar)Maximum permissible pressure(PMW)1 MPa(10 bar)1 MPa(10 bar)1 MPa(10 bar)Temperature range 35 to 60 ℃ 35 to 60 ℃ 35 to 60 ℃Flow rate limiter for cold water 8.0 l/min 10.0 l/min 12.0 l/minHot water comfort in accordance withthe standard EN 13203** ** **Technical data – ElectricsVUW 246/7-2 (H-GB)VUW 286/7-2 (H-GB)VUW 346/7-2 (H-GB)Electric connection – 230 V– 50 Hz– 230 V– 50 Hz– 230 V– 50 HzBuilt-in fuse (slow-blow) T2/2A,250V T2/2A,250V T2/2A,250VMax. electrical power consumption 100 W 110 W 115 W