Appliance overview | Bosch Appliances GWH 2700 ES NG, ESVVT manual

Interior components diagram and parts list

Fig. 65 Appliance overview

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Bosch Appliances GWH 2700 ES NG, GWH 2700 ES LP, ESVVT manual Appliance overview

Contents

Intended for variable flow applications What to do if you smell gas Index For your safety Features Appliance details Specifications Technical data GWH 2700 ES is not approved or designed for To remove combustion cover service onlyUnpacking the heater General rules to follow for safe operation Venting Dimensions and Minimum installation clearances Dimensions Introduction Installation instructionsTools required for installation Venting Fittings or Piping Equivalent Feet Installation instructions Horizontal venting systems onlyVenting Specifications Minimum combustion air and exhaust pipe length Installation instructions Condensate drain requirementsTwin pipe termination clearances 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 Intake Total equivalent vent length calculationExhaust Example Level Vent length1 Speed P2 Adjusting minimum power fan speed P2Adjusting maximum power fan speed P1 Installation instructions Combustion air requirements Twin pipe and Concentric pipe Mounting installation Proper location for installing your heaterHeater placement and clearances Gas piping & connections GAS Line Sizing For Natural GAS Water connections Water quality Domestic hot water recirculation GWH Static Pressure Test Connecting manometerMeasuring gas pressure Operating Pressure Test Position of the fuses in control unit Electrical power supplyElectrical connections Operation instructions LCD Display functions Temperature selection For your safety read before operating your water heaterPower Operation Use of optional remote control Accessory part no. TSTAT2Reset button Program button Annual maintenance Maintenance and serviceAnnual maintenance table Every year Winterizing for seasonal use Mineral scale build-up Adjusting CO2 carbon dioxideDescaling using a pump Returning to Service Measuring CO2 combustion cover must be installedAdjusting CO2 Once Gas Pressure is adequate Final Readings % 3.0 % 60 ppm Comment Program Description Factory DefaultProgram values Control board diagnostics Diagnostic menu Water is too hot TroubleshootingTroubleshooting Water is not hot enough Noisy burner/heater during operation Hot water temperature fluctuates at tapLow water flow/pressure 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 Interior components diagram and parts listInterior components diagram and parts list Appliance overview Description Reference Components diagramGroup Interior components diagram and parts list Group 1211 6720608158-73.1AL Interior components diagram and parts list Group 708 300 Packing Protecting the environmentProtecting the environment Components Limited Warranty Limited Warranty 6720608542