Vaillant ecoTEC plus 937 Instructions And Maintenance Instructions

Also see for ecoTEC plus 937: Operating manual Instructions for installation and servicing Operating manual

Contents

Installation and maintenance instructions ecoTEC plus 0020031552_0362 Unit description, data and dimensions2.1 Technical dataName ecoTEC plus 937Combination unit UnitNominal heat output range of central heating80 °C Feed/60 °C Return60 °C Feed/40 °C Return50 °C Feed/30 °C Return40 °C Feed/30 °C Return12.0 - 28.012.3 - 28.912.7 - 29.712.9 - 30.3kWkWkWkWMaximum output DHW 37 kWMaximum heating output 28 kWMinimum output 12 kWCategory II2H3PSEDBUK Band ASAP Seasonal Efficiency 91.5 %Required gas flow pressure (G20, Natural Gas) 20 mbarRequired gas flow pressure (G31, Propane) 37 mbarConnection value (if necessary referred to storage tank charging/hot water preparation)at 15 °C and 1013 mbarG20: 4.0G31 : 2.94G20 :m3 /hG31 : kg/hExhaust mass flowat minimum thermal load (40 °C Feed/30 °C Return)at maximum thermal load (80 °C Feed/60 °C Return)5.717.1g/sg/sExhaust temperatureat minimum thermal load (40 °C Feed/30 °C Return)at maximum thermal load (80 °C Feed/60 °C Return)4070°C°CNOx class 5Protection class IP X4DMax. flow temperature 85 °CAdjustable flow temperature (default setting: max. 75 °C) 30 - 85 °CPermissible total excess pressure central heating 3.0 barVolume of water circulating (ΔT =20 K) 1204 l/hApproximating condensation water volume at 50 °C Feed/30 °C Return 2.9 l/hrPump head 250 mbarMinimum water flow < 0.1 l/minSpecific throughflow in 10 min (ΔT = 30 K) 204 l/10minPermissible excess pressure water side 10 barRequired connection pressure for max. throughflow quantity 1.3 barRequired connection pressure for min. throughflow quantity 0.1 barHot water temperature discharge 35 - 65 °CFlue size (concentric) 60/100 mmFlue approval category C 13, C33 , C43, C53, C83, B23, B33Pre-pressure 10 l expansion vessel 0.75 barConnections for heating flow and return 22 mmGas connection 22 mmDiameter of the drain line for the safety valve heating (min.) 15 mmDiameter of the drain line for the safety valve hot water (min.) 15 mmCondensate drain (min. internal diameter drain) 19 mmDimensions (H x W x D) 720 x 440 x 597 mmPrimary water quantity 2.5 lSupply voltage 230/50 V ~/HzMain PCB fuse (slow-blow) for main power supply 2 AElectr. Power consumption 175 WStandby power consumption 6.5 WLayered storage tank capacity 15 lInstallation weight, just storage tank 17 kgInstallation weight, just combi unit 38 kgOperating weight (with water) 62 kgTable 2.1 Technical Data ecoTEC plus 9372 Unit description, data and dimensions