Bosch Buderus SB745WS User Manual

Read these instructions carefully before installation and operation of the heating system.
Operating Instructions
Stainless Steel Condensing Boiler
Buderus SB625WS/Buderus SB745WS
6 720 805 220-00.1T
DANGER!
The installation instructions included in this Manual are intended solely for
use by a trained and certified installer, service company or the gas supply
company. If the information in this manual is not followed, a fire or explosion
may result causing property damage, personal injury, or death.
Have installation and service performed by a trained and certified
installer or service company, or the gas supply company.
Bosch recommends signing a service and maintenance contract with a
trained and certified installer or service company that covers annual
servicing and condition-based maintenance. Proper maintenance is a
fundamental requirement for safe and efficient operation and long
service life.

The boiler must be serviced annually including the main burner, ignition
burner, the entire venting system, and the combustion air supply. All
parts that show any signs of damage or corrosion must be replaced.
Improper installation, adjustment, alteration, service, or maintenance
can cause property damage, personal injury, or death. Refer to this
manual and consult a trained and certified installer or service company,
or the gas supply company before installation, service or maintenance.

The owner and operator is responsible for the operational safety and
regulatory compliance of the heating system.
THIS MANUAL SHOULD BE HANDED TO THE OWNER AND OPERATOR OF
THE APPLIANCE.
INSTALLER MUST REVIEW ALL SAFETY INSTRUCTIONS WITH THE
OWNER AND OPERATOR.
UPON COMPLETION OF THE INSTALLATION THE INSTALLER MUST
INSTRUCT THE OWNER AND OPERATOR ON THE FUNCTIONALITY AND
THE PROPER OPERATION OF THE BOILER AND THE HEATING SYSTEM
Low temperature condensing boilers for gas/oil fired power burners
6 720 805 220 (2013/02) US/CA

Bosch Buderus SB745WS Specifications

General

Brand	Bosch
Model	Buderus SB745WS
Category	Boiler
Language	English

Summary

Key to Symbols and Safety Instructions

Explanation of Symbols

Defines warning symbols and keywords used for risk communication and safety.

General Safety Instructions

Provides crucial safety guidelines for gas, flue gas, and general appliance operation.

Product Description

Correct Use

Specifies the intended purpose and improper use of the boiler, excluding warranty for misuse.

Certification and Testing Mark

Confirms the appliance meets applicable standards for US and Canadian markets.

Data Plate

Highlights the importance of data and serial number plates for manufacturer inquiries.

The Correct Fill and Make-up Water

Details water designation and essential quality requirements for heating systems.

The Correct Fuel

Emphasizes using the specified fuel type and grade for proper and safe operation.

Combustion Air Quality

Discusses the importance of clean combustion air to prevent corrosion.

System Start-up

Making the System Operational

Outlines essential checks for system preparation, including pressure and fuel supply.

Check and Correct the Operating Pressure

Provides guidelines for checking and maintaining the system water pressure.

Starting Up the Control Panel and the Burner

Instructions for initiating boiler operation via the control panel.

Shutting Down the System

Switching Off the Control Panel and the Burner

Details the procedure for turning off the boiler and burner via the control panel.

Shutting Down the System in an Emergency

Describes methods for emergency shutdown using shutoff switches or circuit breakers.

System Maintenance

Why is Regular Maintenance Important?

Explains the benefits of regular servicing for efficiency, reliability, and emissions.

Ordinary Analysis and Checking, Frequency and Sampling Points

Details water analysis procedures, checking frequency, and sampling locations.

Troubleshooting