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Bosch AQUA STAR 2400E NG - User Manual

Bosch AQUA STAR 2400E NG
36 pages
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MODEL 2400E NG and 2400E LP - INDOOR MODEL
Temperature Modulated with Electronic Ignition
Suitable for heating potable water only
Not approved for space heating purposes
(Intended for variable flow applications)
2400 E NG - Natural Gas
2400 E LP - Liquefied Petroleum (LP) Gas
6 720 608 263 US (06.11) JS
Warning: If the information in this manual is not
followed exactly, a fire or explosion may result
causing property damage, personal injury or death.
Do not store or use gasoline or other flammable
vapor and liquids in the vicinity of this or any other
appliance.
Improper installation, adjustment, alteration,
service or maintenance can cause injury or
property damage. Refer to this manual. For
assistance or additional information consult a
qualified installer, service agency or the gas
supplier.
In the Commonwealth of Massachusetts this
product must be installed by a licensed plumber or
gas fitter.
Upon completion of the installation, these
instructions should be handed to the user of the
appliance for future reference.
What to do if you smell gas
Close gas valve. Open windows.
Do not try to light any appliance.
Do not touch any electrical switch; do not use any
phone in your building.
If you cannot reach your gas supplier, call the fire
department.
Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions
Installation and service must be performed by a
qualified installer, service agency or the gas supplier.
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Bosch AQUA STAR 2400E NG Specifications

General IconGeneral
BrandBosch
ModelAQUA STAR 2400E NG
CategoryWater Heater
LanguageEnglish

Summary

BOSCH Aqua Star Model 2400 E NG;LP Indoor

Critical Safety Warnings and Gas Leak Procedures

Crucial safety advice, including immediate actions for gas leaks.

Safety, Warnings, and Precautions

Electrical Safety and Grounding Requirements

Guidelines for safe electrical connections and grounding.

High Temperature and Flammable Vapor Dangers

Warnings about scalding risks and flammable vapor hazards.

Appliance Details and Specifications

Key Features and Technical Data

Lists features like LCD display, controls, and technical specs.

Gas and Water Connection Requirements

Details gas pressure needs and water connection sizes.

Appliance Specifications and Unpacking

Combustion, Dimensions, and Safety Features

Details on combustion, physical dimensions, and built-in safety mechanisms.

Unpacking Contents and Approved Usage

Lists items in the box and specifies where the unit should not be installed.

Installation Clearances and Dimensions

Minimum Clearance Requirements for Installation

Specifies minimum distances around the heater for safe installation.

Safe Operation and Installation Location

General Rules for Safe Operation and Code Compliance

Essential guidelines for safe operation and adherence to installation codes.

Selecting the Proper Installation Location

Advice on choosing a safe and functional location, avoiding freezing and hazards.

Mounting, Clearances, and Combustion Air

Mounting Procedures and Wall Installation

Instructions for securely mounting the heater and checking components.

Combustion Air Requirements for Different Spaces

Guidelines for providing adequate combustion air in various installation environments.

Venting System Requirements and Options

Vent Pipe Material, Sizing, and Installation

Details on vent pipe types, lengths, connections, and installation cautions.

Venting Options: Room Sealed vs. Open Combustion

Describes recommended and alternative venting methods for the appliance.

Venting Specifications and Diagrams

Venting Tables and Length Calculations

Provides tables for vent options and explains length calculations with elbows.

Vent Termination and Clearance Guidelines

Details on how to terminate vents and required clearances for safe operation.

Vent Safety and Condensate Management

Attaching Exhaust and Air Inlet Accessories

Instructions for connecting flue gas exhaust and combustion air inlet accessories.

Condensate Drain Tube Installation and Usage

How to install and use the condensate drain kit, including trap formation.

Venting Options and System Diagrams

Room Sealed vs. Single Pipe Venting

Explains the recommended twin pipe system and the single pipe alternative.

Venting Lengths and Elbow Considerations

Details on maximum pipe lengths and how elbows affect them.

Exhaust Vent Terminator Positions

Recommended Distances for Vent Terminators

Table and diagram showing safe distances for vent outlets relative to openings and structures.

Exhaust Vent System Installation Details

Horizontal Side Wall Venting Installation

Illustrates how to install the vent system through a side wall.

Vertical Venting and Roof Clearance

Details for vertical vent installations, including roof clearances.

Gas Piping and Connections

Gas Line Sizing and Code Requirements

Guidelines for sizing gas lines according to codes and appliance demand.

Gas Connection Best Practices

Advice on installing shut-off valves, unions, and using flexible connectors.

Gas Line Sizing Charts

Natural Gas Pipe Sizing Capacities

Tables showing pipe capacity for Natural Gas based on size and length.

LP Gas Pipe Sizing Capacities

Tables detailing pipe capacity for LP Gas based on size and length.

Gas Pressure Measurement and Leak Testing

Measuring Static and Operating Gas Pressure

Procedures for connecting a manometer and testing gas pressures.

Gas Line Sizing Recommendations and Leak Checks

Advice on pipe sizing and essential steps for checking gas leaks.

Water Connections and Pressure Relief Valve

High Altitude Operation and Pressure Settings

Adjustments for high altitudes and recommended water pressure ranges.

Installing the Pressure Relief Valve (PRV)

Step-by-step guide for correctly installing the pressure relief valve.

Electrical Connections and Initial Operation

Electrical Safety and Power Supply Requirements

Instructions for safe electrical connections, grounding, and power supply.

Lighting and Operating Procedures

Step-by-step guide for starting, operating, and shutting down the water heater.

Heater Operation and Shutdown

First-Time Installation Air Bleeding (Error EA)

Explanation of error EA during initial startup and how to resolve it.

Turning Off Gas Supply to Appliance

Procedures for safely shutting off the gas supply to the unit.

Operation Instructions: Power and Temperature

Controlling Appliance Power (On;Off)

How to turn the water heater on and off using the main switch.

Selecting and Adjusting Water Temperature

Guide on setting the desired hot water temperature and managing high temperatures.

Water Temperature Setting Charts

Flow and Temperature Performance Charts

Graphs showing hot water output based on flow rate and inlet temperature.

Advanced Operation Features

Remote Control and Programming Function

How to use the remote control and program temperature settings.

Resetting and Locked Condition Modes

Procedures for resetting the unit and understanding the locked condition.

Maintenance and Troubleshooting Guide

Annual Maintenance Checks and Service

Recommended checks for components like venting, burners, and filters.

Troubleshooting Burner Ignition Issues

Common causes and solutions for the burners not igniting.

Troubleshooting Specific Issues

Low Water Flow and Pressure Problems

Diagnosing and resolving issues related to insufficient water flow or pressure.

Temperature Fluctuations and Noisy Operation

Addressing temperature instability, erratic pressure, and burner noise.

Troubleshooting Error Codes

Error Code Reference and Solutions

A detailed table listing error codes, their causes, and recommended solutions.

Electrical Diagram and Components

Understanding the Electrical Schematic

A visual representation of the heater's electrical system and its components.

Functional Scheme and Operation Logic

Appliance Operation Flowchart

A diagram illustrating the sequence of operations and logic for the water heater.

Interior Components Overview

Key Internal Component Identification

Labeled diagrams identifying major internal parts of the appliance.

Detailed Component Diagram

Visual Breakdown of Internal Parts

An exploded view or detailed diagram showing numbered internal components.

Parts List and References

Component Part Numbers and Descriptions

A comprehensive list of all parts with their corresponding descriptions and reference numbers.

CO2 Level Adjustment Procedure

Measuring CO2 Levels with Analyzer

Steps to measure CO2 readings using an analyzer with the unit on and off.

Adjusting CO2 Levels for Optimal Performance

Instructions on how to adjust CO2 levels using screws for P1 and P2 readings.

Finalizing CO2 Adjustment and Readings

Returning Unit to Service After Adjustment

Steps to reassemble and prepare the unit for normal operation post-adjustment.

Final CO2 Readings and Tables

Recording final CO2 measurements and cross-referencing with specification tables.

Environmental Protection and Water Saving

Recycling and Disposal Information

Guidance on recycling packaging and components.

Water Conservation Tips and Freeze Prevention

Advice on saving water and preventing freeze damage to the unit.

Limited Warranty Information

Warranty Coverage and Exclusions

Details on what is covered, for how long, and common warranty exceptions.

How to Make a Warranty Claim

Contact information and procedures for submitting a warranty claim.

Installer Information and Support

Replacement Parts Availability

Information on where to obtain replacement parts for the water heater.

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