Vaillant ecoMAX 635 Instructions For Installation And Servicing

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5Boiler Specification 2Instructions for installation and servicing ecoMAX 52 Boiler specification2.1 Technical dataecoMAX 635 UnitsMaximum CH heat input (G 20) (net) 34.9 kWMaximum CH heat input (G 31) (net) 34.9 kWCH heat output range80 °C flow/60 °C return 10.5 - 34.9 kW50 °C flow/30 °C return 11.0 - 36.7 kWSEDBUK A BandSAP Seasonal Efficiency 91.2 %Inlet gas working pressure required(natural gas) 20 mbarInlet gas working pressure required(Propane) 37 mbarGas supply (G20) Gross CV (s.t.) 37.8 MJ/m3Gas supply (G31) Gross CV (s.t.) 95.65 MJ/m 3Gas rate (natural gas) max. 3.7 m3/hGas rate (Propane) max. 2.7 kg/hCH temperature flow range 30 - 85 °CMinimum CH water flow (for 20 °C rise) 1480 l/hPump pressure available 0.25 bar10l expansion vessel pre–charge pressure 0.75 barMaximum CH system pressure 2.5 barConnections heating flow/return 22 mmGas inlet 15 mmPressure relief discharge pipework (min.) 15 mmCondensate drain (min. internal drain) 19 mmWeight 41 kgPrimary water content 2,2 lVolume of condensate (max.) 3,3 l/hMaximum flue gas temperature 70 °CElectrical supply voltage 230/50 V ~/HzInternal fuse (slow) main voltage 4 AInternal fuse (slow) low voltage 4 APower input 115 W