GWH 2700 ES Functional scheme | Bosch Appliances GWH 2700 ES LP

GWH 2700 ES Functional scheme

11 GWH 2700 ES Functional scheme

Fig. 63 Functional scheme

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Bosch Appliances GWH 2700 ES LP, ESVVT, GWH 2700 ES NG manual GWH 2700 ES Functional scheme

Contents

Intended for variable flow applications What to do if you smell gas Index For your safety Features Appliance details Specifications Technical data To remove combustion cover service only Unpacking the heaterGWH 2700 ES is not approved or designed for General rules to follow for safe operation Venting Dimensions and Minimum installation clearances Dimensions Installation instructions Tools required for installationIntroduction Venting Installation instructions Horizontal venting systems only Venting SpecificationsFittings or Piping Equivalent Feet Installation instructions Condensate drain requirements Twin pipe termination clearancesMinimum combustion air and exhaust pipe length Maximum combustion air and exhaust pipe length Canadian installations1 Installations2 Canadian installations1 Horizontal twin pipe penetration Vertical venting installation twin pipe penetra- tion Vent connections Installation instructions Condensate drain installation Venting Flex ProTech Heat Fab Total equivalent vent length calculation ExhaustIntake Example Adjusting minimum power fan speed P2 Adjusting maximum power fan speed P1Level Vent length1 Speed P2 Installation instructions Combustion air requirements Twin pipe and Concentric pipe Proper location for installing your heater Heater placement and clearancesMounting installation Gas piping & connections GAS Line Sizing For Natural GAS Water connections Water quality Domestic hot water recirculation GWH Connecting manometer Measuring gas pressureStatic Pressure Test Operating Pressure Test Electrical power supply Electrical connectionsPosition of the fuses in control unit Operation instructions LCD Display functions For your safety read before operating your water heater PowerTemperature selection Use of optional remote control Accessory part no. TSTAT2 Reset buttonOperation Program button Maintenance and service Annual maintenance table Every yearAnnual maintenance Winterizing for seasonal use Adjusting CO2 carbon dioxide Descaling using a pumpMineral scale build-up Measuring CO2 combustion cover must be installed Adjusting CO2Returning to Service Once Gas Pressure is adequate Final Readings % 3.0 % 60 ppm Program Description Factory Default Program valuesComment Control board diagnostics Diagnostic menu Troubleshooting TroubleshootingWater is too hot Water is not hot enough Hot water temperature fluctuates at tap Low water flow/pressureNoisy burner/heater during operation Lack of adequate gas pressure. Inadequate gas Problem solving Error code diagnostics Problem solving Display Cause Solution Venting may cause this failure Over-temperature detected by No flame ionization detected with Electrical diagram Electrical diagram Sensor resistance charts Back Flow characteristics GWH 2700 ES Functional scheme Functional scheme Interior components diagram and parts list Interior components diagram and parts listInterior components Appliance overview Components diagram GroupDescription Reference Interior components diagram and parts list Group 1211 6720608158-73.1AL Interior components diagram and parts list Group 708 300 Protecting the environment Protecting the environmentPacking Components Limited Warranty Limited Warranty 6720608542