Bosch SSB255 User Manual

Installation and Service Instructions for Contractors
6720818454 (2016/02) US
WARNING:
Improper installation, set-up, modication, operation or maintenance of
the heating system can cause personal injury and property damage.
Follow these instructions precisely.
If you require assistance or further information, contact a licensed
contractor / gas tter.
WARNING:
The operating instructions are part of the technical documents that
must be handed over to the owner or operator of the heating system.
Explain to the owner or operator how to use the heating system using
the operating instructions. Make sure that they are familiar with all
required information for the safe and proper operation of the heating
system.
NOTICE:
In Massachusetts, this appliance must be installed by a licensed
plumber or gas tter.
These instructions are available in English and French.
Please keep these instructions for future reference.
Gas Condensing Stainless Steel Boiler
BUDERUS SSB BOILER
SSB255 | SSB399 | SSB512

Bosch SSB255 Specifications

General

Brand	Bosch
Model	SSB255
Category	Boiler
Language	English

Summary

Key to Symbols and Safety Instructions

Safety Instructions

Covers risks like gas leaks, electrical shock, and general safety precautions.

Product Description

Dimensions, Connections, and Main Components

Technical Data and Efficiency Curves

Installation

Pump, Condensate Removal, and Electrical Connections

Gas Supply Piping and Conversion

Requirements for gas lines and fuel type conversion.

Venting and Air Piping Systems

Rules and examples for exhaust and air intake installations.

Commissioning (Single Boiler Application)

Boiler Information, Parameters, and Outdoor Reset

Adjusting CO₂ Limits for Optimal Combustion

Fine-tuning combustion parameters for efficiency.

Troubleshooting

Handling Display Errors and Sensor Issues

Lockout and Blocking Error Codes

Explains error codes that cause boiler shutdowns and their resolutions.

Maintenance

Contractor Inspection Schedule and Tasks

Detailed maintenance procedures for qualified technicians.

Applications

Multiple Zone Systems (Pump/Valve per Zone)

Cascade Connection of Multiple Boilers

Guidelines for connecting and configuring multiple boilers.

Spare Parts

Detailed Parts List and Order Numbers

Comprehensive list of spare parts with their corresponding order codes.