Bosch Appliances GWH 2700 ES LP, ESVVT, GWH 2700 ES NG manual 6720608158-73.1AL

Page 54

Interior components diagram and parts list

12.2.4 Group 4

14

11

6

7

10 13

12

11

9

1

8

2

5

 

 

3

4

6720608158-73.1AL

Fig. 69

Components Diagram

 

 

 

 

Item

Description

Reference

1

Gas valve

8 707 021 019

 

 

 

2

Pressure tapping

8 703 404 219

 

 

 

3

Washer

8 700 203 041

 

 

 

4

Pressure balance tube

8 700 703 136

 

 

 

5

Pressure balance nut

8 703 300 041

 

 

 

6

Gas supply pipe

8 700 715 389

 

 

 

7

Gas valve washer

8 700 103 014

 

 

 

Table 24

Item

Description

Reference

8

Gas filter

8 700 507 002

 

 

 

9

Gasket

8 704 701 085

 

 

 

10

Gas / Fan connector

8 705 202 140

 

 

 

11

Washer

8 704 701 062

 

 

 

12

Regulation screw

8 703 404 220

 

 

 

13

O-ring

8 700 205 009

 

 

 

14

Screw

2 910 149 181

 

 

 

Table 24

54

6 720 608 542

Image 54
Contents Intended for variable flow applications What to do if you smell gasIndex For your safety Features Appliance detailsSpecifications 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 VentingDimensions and Minimum installation clearances DimensionsIntroduction Installation instructionsTools required for installation VentingInstallation instructions Horizontal venting systems only Venting SpecificationsFittings or Piping Equivalent Feet Minimum combustion air and exhaust pipe length Installation instructions Condensate drain requirementsTwin pipe termination clearances 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 FabIntake Total equivalent vent length calculationExhaust ExampleAdjusting minimum power fan speed P2 Adjusting maximum power fan speed P1Level Vent length1 Speed P2 Installation instructions Combustion air requirements Twin pipe and Concentric pipeProper location for installing your heater Heater placement and clearancesMounting installation Gas piping & connections GAS Line Sizing For Natural GAS Water connections Water qualityDomestic hot water recirculation GWHStatic Pressure Test Connecting manometerMeasuring gas pressure Operating Pressure TestElectrical power supply Electrical connectionsPosition of the fuses in control unit Operation instructions LCD Display functionsFor your safety read before operating your water heater PowerTemperature selection Operation Use of optional remote control Accessory part no. TSTAT2Reset button Program buttonAnnual maintenance Maintenance and serviceAnnual maintenance table Every year Winterizing for seasonal useAdjusting CO2 carbon dioxide Descaling using a pumpMineral scale build-up Returning to Service Measuring CO2 combustion cover must be installedAdjusting CO2 Once Gas Pressure is adequateFinal Readings % 3.0 % 60 ppmProgram Description Factory Default Program valuesComment Control board diagnostics Diagnostic menuWater is too hot TroubleshootingTroubleshooting Water is not hot enoughHot water temperature fluctuates at tap Low water flow/pressureNoisy burner/heater during operation 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 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 Packing Protecting the environmentProtecting the environment ComponentsLimited Warranty Limited Warranty 6720608542