Bosch Appliances GWH 2700 ES NG, GWH 2700 ES LP, ESVVT manual Limited Warranty

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Limited Warranty

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Contents What to do if you smell gas Intended for variable flow applicationsIndex For your safety Appliance details FeaturesSpecifications Technical data GWH 2700 ES is not approved or designed for To remove combustion cover service onlyUnpacking the heater Venting General rules to follow for safe operationDimensions Dimensions and Minimum installation clearancesVenting Installation instructionsTools required for installation IntroductionFittings or Piping Equivalent Feet Installation instructions Horizontal venting systems onlyVenting Specifications Maximum combustion air and exhaust pipe length Installation instructions Condensate drain requirementsTwin pipe termination clearances Minimum combustion air and exhaust pipe lengthCanadian installations1 Installations2 Canadian installations1 Horizontal twin pipe penetration Vent connections Vertical venting installation twin pipe penetra- tionVenting Flex ProTech Heat Fab Installation instructions Condensate drain installationExample Total equivalent vent length calculationExhaust IntakeLevel Vent length1 Speed P2 Adjusting minimum power fan speed P2Adjusting maximum power fan speed P1 Installation instructions Twin pipe and Concentric pipe Combustion air requirementsMounting installation Proper location for installing your heaterHeater placement and clearances Gas piping & connections GAS Line Sizing For Natural GAS Water quality Water connectionsGWH Domestic hot water recirculationOperating Pressure Test Connecting manometerMeasuring gas pressure Static Pressure TestPosition of the fuses in control unit Electrical power supplyElectrical connections LCD Display functions Operation instructionsTemperature selection For your safety read before operating your water heaterPower Program button Use of optional remote control Accessory part no. TSTAT2Reset button OperationWinterizing for seasonal use Maintenance and serviceAnnual maintenance table Every year Annual maintenanceMineral scale build-up Adjusting CO2 carbon dioxideDescaling using a pump Once Gas Pressure is adequate Measuring CO2 combustion cover must be installedAdjusting CO2 Returning to Service% 3.0 % 60 ppm Final ReadingsComment Program Description Factory DefaultProgram values Diagnostic menu Control board diagnosticsWater is not hot enough TroubleshootingTroubleshooting Water is too hotNoisy burner/heater during operation Hot water temperature fluctuates at tapLow water flow/pressure Lack of adequate gas pressure. Inadequate gas Error code diagnostics Problem solvingVenting may cause this failure Problem solving Display Cause SolutionOver-temperature detected by No flame ionization detected with Electrical diagram Electrical diagramSensor resistance charts Back Flow characteristics Functional scheme GWH 2700 ES Functional schemeInterior 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 Components Protecting the environmentProtecting the environment PackingLimited Warranty Limited Warranty 6720608542