Bosch Appliances GWH 2400 ES NG, GWH 2400 ES LP manual Unpacking the GWH 2400 ES heater

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Appliance details

Call Bosch Water Heating through Bosch

thermotechnology corporation for conversion instructions.

Voltage

120 V AC (60 Hz) nominal

Amperage

Idle - 40 mA

Operation - ≤ 2.5 A

Noise

45 - 65 db (A)

Safety devices

•Flame failure device (ionization flame rod sensor)

•Pressure relief valve (supplied with heater)

•Over heat prevention (temperature limiter)

•Inlet temperature sensor

•Outlet temperature sensor

•Backflow temperature sensor.

Water protection

IP X4 (protection against water drops)

i

If appliance is installed at elevations

between 2000ft and 4500ft, a

combustion gas analyzer is required for

 

proper calibration of appliance. (see page

 

22).

 

 

2.3Unpacking the GWH 2400 ES heater

Before installing the unit, be certain you have the correct heater for your type of Gas: Propane or Natural Gas. Identification labels are found on the shipping box, and on the rating plate which is located on the right side panel of the cover.

Fig. 2 Rating plate

ASerial number

B Type of gas

The box includes:

•GWH 2400 ES

•Pressure relief valve (150 psi / 200,000 Btu rating)

•Bracket for wall hanging the heater

•Exhaust vent adaptor (with 4 screws and gasket provided)

•Combustion air inlet adaptor (with 3 screws and gas- ket provided)

•Installation manual (manual can be downloaded at www.boschhotwater.com)

•Product registration card

•Energy Guide label.

Please complete and return the enclosed product registration card.

The GWH 2400 ES is not approved or designed for:

•Manufactured (mobile) homes, boats or any mobile installation (modular homes are acceptable for installation)

•Use above 4500ft A.S.L. altitude

•Outdoor installation without installation of Outdoor kit (AQOK)

•Space heating purposes

•Preheated inlet water supply.

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Contents What to do if you smell gas Intended for variable flow applicationsIndex FCC For your safetyAppliance 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 Dimensions and Minimum installation clearancesTools required for installation Installation instructionsIntroduction VentingFittings or Piping Equivalent Feet Vent Safety SystemDescription Minimum distance Installation instructions Venting configuration examples Venting Flex ProTech Heat Fab Installation instructions Condensate drain requirementsRoom sealed installation Twin Pipe System Exhaust Determining installation adjustmentInstallation instructions Vent connections Twin pipe Combustion air requirementsMounting installation Proper location for installing your heaterHeater placement and clearances Gas piping & connections GAS Connections For Natural GAS Water quality Water connectionsRecirculation application Recirculation applicationMeasuring gas pressure Position 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 Reset button Use of optional remote control accessory part no. TSTAT2Operation Program buttonAnnual maintenance table Every year Maintenance and serviceAnnual maintenance Winterizing for seasonal useMineral scale build-up Adjusting CO2 carbon dioxideDescaling using a pump Adjusting CO2 Measuring CO2 combustion cover must be installedReturning to Service Once Gas Pressure is adequate% 2.8 % 60 ppm Final ReadingsComment Program Description Factory DefaultProgram values Diagnostic menu Control board diagnosticsTotal vent length calculation Fan speed adjustmentIntake ExampleMode Pipe Length1 Fan speed Maintenance and service To select fan speedTroubleshooting TroubleshootingWater is too hot Water is not hot enoughNoisy burner/heater during operation Hot water temperature fluctuates at tapLow water flow/pressure Troubleshooting 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 2400 ES Functional schemeInterior components Interior components diagram and parts listInterior components diagram and parts list Appliance overview Group Components diagramDescription Reference 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 Protecting the environment Protecting the environmentPacking 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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