Bosch Appliances GWH 2700 ES NG, GWH 2700 ES LP, ESVVT manual 708 300

Page 56

Interior components diagram and parts list

12.2.6 Group 6

4

5

6

7

3

2

1

12

9

10

14

8

11

15

16

13

6720902978.AA JF

Fig. 71

Components Diagram

 

Item

Description

Reference

1

Control unit

8 707 207 257

2

Fuse T2.5A

1 904 521 342

3

Fuse T1.6A

8 700 609 008

4

Power supply cables

8 704 401 371

5

Power supply cord

8 704 401 378

6

Fan cables

8 704 401 347

7

Wire harness

8 704 401 348

8

Jumper

8 704 401 376

Table 26

Item

Description

Reference

9

Electrode cables

8 704 401 346

10

Flue gas limiter

8 700 400 032

11

Cascading kit (optional)

7 709 003 617

12

Anti freeze kit

7 709 003 665

13

Remote control (optional)

8 707 207 153

14

Shaped seal (optional)

8 700 201 012

15

Screw (optional)

8 703 401 109

16

Printed circuit transceiver (optional)

8 708 300 123

Table 26

56

6 720 608 542

Image 56
Contents Intended for variable flow applications What to do if you smell gasIndex For your safety Features Appliance detailsSpecifications 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 VentingDimensions and Minimum installation clearances DimensionsInstallation instructions Tools required for installationIntroduction VentingFittings or Piping Equivalent Feet Installation instructions Horizontal venting systems onlyVenting Specifications Installation instructions Condensate drain requirements Twin pipe termination clearancesMinimum combustion air and exhaust pipe length Maximum combustion air and exhaust pipe lengthCanadian installations1 Installations2 Canadian installations1 Horizontal twin pipe penetration Vertical venting installation twin pipe penetra- tion Vent connectionsInstallation instructions Condensate drain installation Venting Flex ProTech Heat FabTotal equivalent vent length calculation ExhaustIntake ExampleLevel Vent length1 Speed P2 Adjusting minimum power fan speed P2Adjusting maximum power fan speed P1 Installation instructions Combustion air requirements Twin pipe and Concentric pipeMounting installation Proper location for installing your heaterHeater placement and clearances Gas piping & connections GAS Line Sizing For Natural GAS Water connections Water qualityDomestic hot water recirculation GWHConnecting manometer Measuring gas pressureStatic Pressure Test Operating Pressure TestPosition of the fuses in control unit Electrical power supplyElectrical connections Operation instructions LCD Display functionsTemperature selection For your safety read before operating your water heaterPower Use of optional remote control Accessory part no. TSTAT2 Reset buttonOperation Program buttonMaintenance and service Annual maintenance table Every yearAnnual maintenance Winterizing for seasonal useMineral scale build-up Adjusting CO2 carbon dioxideDescaling using a pump Measuring CO2 combustion cover must be installed Adjusting CO2Returning to Service Once Gas Pressure is adequateFinal Readings % 3.0 % 60 ppmComment Program Description Factory DefaultProgram values Control board diagnostics Diagnostic menuTroubleshooting TroubleshootingWater is too hot Water is not hot enoughNoisy burner/heater during operation Hot water temperature fluctuates at tapLow water flow/pressure Lack of adequate gas pressure. Inadequate gas Problem solving Error code diagnosticsProblem solving Display Cause Solution Venting may cause this failureOver-temperature detected by No flame ionization detected with Electrical diagram Electrical diagramSensor resistance charts Back Flow characteristics GWH 2700 ES Functional scheme 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 Protecting the environment Protecting the environmentPacking ComponentsLimited Warranty Limited Warranty 6720608542