Viessmann Vitodens 100-W WB1A Series User Manual

Read and save these instructions
for future reference.
IMPORTANT
If the information in this manual is not followed
exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
WARNING
Improper installation, adjustment, and/or
operation could cause carbon monoxide
poisoning resulting in injury or loss of life.
This product must be installed and serviced by a
professional service technician who is
experienced and qualified in hot water boiler
installation and gas combustion.
WARNING
Do not store or use gasoline or other flammable
liquids in the vicinity of this or any other
appliance.
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliances.
Do not touch any electrical switches, do not
use any phone in your building.
Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
If you cannot reach your gas supplier, call the
fire department.
Installation and service must be performed by a
qualified installer, service agency or the gas
supplier.
VITODENS 100-W
Operating Instructions &
User’s Information Manual
Vitodens 100-W
WB1A Series
Wall-mounted, natural gas-fired condensing boiler
For natural gas only
Heating input NG 29 to 100 MBH
8to 30kW
Please file in Service Binder
5581 532 v1.1 07/2007

Viessmann Vitodens 100-W WB1A Series Specifications

General

Heat Exchanger Material	Stainless Steel
Mounting	Wall-mounted
Fuel Type	Natural Gas or Propane (LP)
Ignition	Electronic
Warranty	5 years
Control	Vitotronic Control Unit

Summary

Document Introduction and Safety

About these Instructions

Guidance on understanding symbols and warnings in the manual.

For your Safety

Outlines essential safety precautions for boiler operation and maintenance.

Safety Details

Carbon monoxide

Explains risks of carbon monoxide and recommends detectors.

Safe Operation Practices

Lists recommendations for safe boiler operation and maintenance.

Frozen Water Pipe Hazard

Discusses the risk of frozen pipes and preventative measures.

Environmental and Fire Safety

Covers fire risks, installation area conditions, and contaminant sources.

Useful Tips

Controls and Indicators Overview

Introduces the boiler's control panel, its components, and display elements.

Changing Room Temperature

Guides on adjusting room temperature via thermostat or boiler settings.

System Start-up and Operation

Starting the Heating System

Steps for safely turning on the heating system and checking pressure.

Heating System Operation

Instructions for switching the heating system on and off using the selector dial.

Domestic Hot Water Production

How DHW temperature is adjusted with a separate DHW tank.

Operation Details

Boiler Water Temperature and System Pressure

How to check and display boiler water temperature and system pressure.

Switching OFF with Frost Protection

Instructions for turning off the unit with frost protection active.

Shutting Down the Heating System

Procedures for completely shutting down the heating system for extended periods.

Troubleshooting and Faults

Fault Diagnosis and Correction

Table of common issues, causes, and corrective actions for troubleshooting.

Fault Messages on the Display

How fault codes are displayed and reported to a contractor.

Service Instructions

Boiler and System Servicing

Recommends annual inspection and service by a qualified contractor for the boiler and system.

Energy Saving and Operating Instructions

How to Save Energy

Tips for optimizing energy efficiency through settings, insulation, and regular maintenance.

Lighting and Operating Instructions

Detailed steps for manual gas shutoff, appliance operation, and startup.