Bosch Appliances GWH 2400 ES LP, GWH 2400 ES NG manual Index

Page 2

Index

Index

1

Warning

3

 

 

 

2

Appliance details

4

2.1

Features

4

2.2GWH 2400 ES Specifications

 

(Technical data)

4

2.3

Unpacking the GWH 2400 ES heater

5

2.4

General rules to follow for safe operation

6

2.5Dimensions and Minimum installation

 

clearances

7

 

 

 

3

Installation instructions

8

3.1

Tools required for installation

8

3.2

Introduction

8

3.3

Venting

8

3.4

Combustion air requirements

15

3.5

Proper location for installing your heater

16

3.6

Heater placement and clearances

16

3.7

Mounting installation

16

3.8

Gas piping & connections

17

3.9

Water connections

20

3.10

Water quality

20

3.11

Recirculation application

21

3.12

Measuring gas pressure

21

 

 

 

4

Electrical connections

23

4.1

Electrical power supply

23

4.2

Position of the fuses in control unit

23

 

 

 

5

Operation instructions

24

5.1

LCD Display functions

24

5.2For your safety read before operating

 

your water heater

25

5.3

Power

25

5.4

Temperature selection

25

5.5Use of optional remote control accessory

 

(part no. TSTAT2)

26

5.6

Operation

26

5.7

Reset button

26

5.8

Program button

26

5.9

Locked condition

26

6

Maintenance and service

27

6.1

Annual maintenance

27

6.2

Winterizing for seasonal use

27

6.3

Mineral scale build-up

28

6.4

Adjusting CO2 (carbon dioxide)

28

6.5

Program values

31

6.6

Control board diagnostics

32

6.7

Fan speed adjustment

33

7

Troubleshooting

35

7.1

Introduction

35

7.2Burner do not ignite when hot water

 

is turned ON

35

7.3

Water is too hot

35

7.4

Water is not hot enough

35

7.5

Low water flow/pressure

36

7.6

Hot water temperature fluctuates at tap

36

7.7

Noisy burner/heater during operation

36

 

 

 

8

Problem solving

38

8.1

Error code diagnostics

38

 

 

 

9

Electrical diagram

42

 

 

 

10

Sensor resistance charts

43

 

 

 

11

GWH 2400 ES Functional scheme

45

 

 

 

12

Interior components diagram

 

 

and parts list

46

12.1

Interior components

46

12.2

Components diagram

48

 

 

 

13

Protecting the environment

54

 

 

 

14

Limited Warranty

55

2

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Contents Intended for variable flow applications What to do if you smell gasIndex For your safety FCCAppliance details FeaturesGWH 2400 ES Specifications Technical data Unpacking the GWH 2400 ES heater Appliance details To remove front cover To remove combustion cover service onlyGeneral rules to follow for safe operation Dimensions and Minimum installation clearances DimensionsIntroduction Installation instructionsTools required for installation VentingVent Safety System Fittings or Piping Equivalent FeetDescription Minimum distance Installation instructions Venting configuration examples Venting Flex ProTech Heat Fab Installation instructions Condensate drain requirementsRoom sealed installation Twin Pipe System Determining installation adjustment ExhaustInstallation instructions Vent connections Combustion air requirements Twin pipeMounting installation Proper location for installing your heaterHeater placement and clearances Gas piping & connections GAS Connections For Natural GAS Water connections Water qualityRecirculation application Recirculation applicationMeasuring gas pressure Position 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 Operation Use of optional remote control accessory part no. TSTAT2Reset button Program buttonAnnual maintenance Maintenance and serviceAnnual maintenance table Every year Winterizing for seasonal useMineral 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 adequateFinal Readings % 2.8 % 60 ppmComment Program Description Factory DefaultProgram values Control board diagnostics Diagnostic menuIntake Fan speed adjustmentTotal vent length calculation ExampleMaintenance and service To select fan speed Mode Pipe Length1 Fan speedWater is too hot TroubleshootingTroubleshooting Water is not hot enoughNoisy burner/heater during operation Hot water temperature fluctuates at tapLow water flow/pressure Troubleshooting 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 2400 ES Functional scheme Functional schemeInterior components Interior components diagram and parts listInterior components diagram and parts list Appliance overview Description Reference Components diagramGroup Item DescriptionInterior components diagram and parts list Group Interior components diagram and parts list Group Interior components diagram and parts list Group Interior components diagram and parts list Group 708 300 Packing Protecting the environmentProtecting the environment ComponentsLimited Warranty Bosch Thermotechnology Corporation

GWH 2400 ES NG, GWH 2400 ES LP specifications

Bosch Appliances has established a reputation for delivering high-quality and innovative home solutions, and the Bosch GWH 2400 ES LP and GWH 2400 ES NG are no exceptions. These high-efficiency water heaters are designed to provide on-demand hot water, ensuring comfort and convenience for your home.

One of the standout features of the Bosch GWH 2400 ES LP (Liquid Propane) and GWH 2400 ES NG (Natural Gas) models is their compact, space-saving design. These tankless water heaters are engineered to fit in smaller spaces, making them an ideal choice for homes with limited installation areas. Despite their compact size, both models provides a powerful performance that meets the hot water needs for multiple fixtures simultaneously, such as showers, faucets, and washing machines.

These water heaters are equipped with advanced technology that enables precise temperature control. The Bosch GWH 2400 ES series utilizes a microprocessor-based control system that allows for consistent water heating, ensuring the water temperature remains stable even during high demand. The modulating gas valve further optimizes energy consumption, adjusting the flame intensity to meet the exact heating needs, thus enhancing efficiency.

In terms of safety, both the GWH 2400 ES LP and NG come with multiple safety features. These include a flame failure safeguard, overheating protection, and a built-in freeze protection system. Such features ensure both peace of mind and the longevity of the unit.

Installation is straightforward with these models, as they can be vented using standard venting materials, saving time and costs. Additionally, the units boast a low NOx emissions rating, making them environmentally friendly choices that help homeowners reduce their carbon footprint.

Maintenance is minimal, thanks to the corrosion-resistant heat exchanger which ensures durability and long service life under normal operating conditions. This factor, combined with Bosch’s renowned commitment to quality, makes these models a reliable investment for any household.

Whether you opt for the GWH 2400 ES LP or the GWH 2400 ES NG, you will experience the benefits of a powerful, efficient, and safe water heating solution tailored to your specific household needs. Bosch has truly combined technology, sustainability, and user comfort in these innovative models, solidifying their place as leaders in the home appliance market.
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