Bosch Appliances 250SX NG, 250SX LP manual Electrical diagram

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Electrical diagram

6Electrical diagram

Fig. 36 Electrical scheme

1Intlet water temperature sensor

2 Ionization sensor

3 Water flow sensor

4 Over heat protection

5 Temperature limiter

6 Gas valve

7Fan

8Water valve

9 AC Plug

10 Ignition electrode

11 Display PCB

12 ON/OFF switch

13 Fuse T 2,5A

14 Fuse T 3,15A

15 Terminal block

16 Ground post

17 Outlet water temperature sensor

6 720 607 057

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Contents What to do if you smell gas SX NG SX LPFeaturing For your safetyIndex IndexFCC Features 250 SX Specifications Technical dataAppliance details Gas types DimensionsSafety devices CombustionDimensions Dimensions and Minimum installation clearancesProper location for installing your heater General rules to follow for safe operationVenting Mounting installation ClearancesCombustion air requirements Venting Room Venting options Minimum exhaust vent size and lengthOpen combustion installation Single Pipe System Appliance details Room sealed installation Twin Pipe SystemDescription Minimum distance 720 607 GAS Line Sizing ShownFor LP GAS For Natural GASBe Included in the Pipe Sizing Gas line sizingPlumbing Connections and Pressure Relief Valve Water connectionsWhat to do if YOU Smell GAS For your safety read before operating your water heaterElectrical connections Operating instructionsTo Turn OFF GAS to Appliance Operation instructions PowerTemperature selection Operation instructionsFlow/temperature charts Operation instructions Setting the water temperatureProgram button Use of remote control accessoryReset button OperationTroubleshooting Maintenance and serviceTroubleshooting Temperature balance valvesUnbalanced pressure in water lines Chapter Troubleshooting Display Cause SolutionElectrical diagram Electrical diagramSX Functional scheme SX Functional schemeInterior components diagram and parts list Interior components diagram and parts listInterior components Components Diagram Components diagramDescription Reference Parts listAdjusting the unit Special adjustment for measuring and adjusting CO2 levelsLeave Program mode AdjustingComponents Protecting the environmentProtecting the environment PackingTwelve Year Limited Warranty Controlled Energy Corp