Key facts
- Manuals
- 3
- Languages
- EN
- Last added
- 2026-09-28
Featured Viessmann manuals

Viessmann Vitodens 111-W Installation and Service Instructions
This document provides detailed safety instructions, installation steps, wiring diagrams and commissioning procedures for the Viessmann Vitodens 111-W wall‑mounted gas condensing boiler. It is intended for qualified contractors and includes guidance on gas, electrical and mechanical work, as well as required protective equipment.
The guide also covers system configuration, diagnostic menus, troubleshooting fault codes, and recommended maintenance actions such as draining, part replacement and cleaning. Appendices contain technical specifications, spare‑part lists and certification information.
Covers: Safety Instructions · Preparing for Installation · Installation Sequence · Commissioning, Inspection and Maintenance · System Configuration (Parameters) · Diagnosis and Service Checks

Viessmann Vitodens200-W WB 2B Series Operating Instructions & User Information Manual
This manual contains essential safety warnings, installation requirements, and warranty information for the Vitodens200‑W WB 2B Series wall‑mounted gas‑fired condensing boiler. It emphasizes the need for qualified professional installation and regular service to prevent carbon‑monoxide hazards and ensure reliable operation.
The document explains how to start up and shut down the heating system, adjust room and domestic hot‑water temperatures, program time schedules, and use the control unit’s functions. Additional sections cover energy‑saving settings, troubleshooting indicators, and service instructions for qualified technicians.
Covers: General Information / Safety · Getting Started · Your Vitodens 200‑W Boiler · Overview of Controls and Indicators · Start‑up / Shutdown · Adjusting the Room Temperature

Viessmann Vitodens 100-W Domestic Product Guide
This guide presents the Viessmann Vitodens 100‑W range, including the Combination, System, Open‑vent and P25/P29 models. It describes key features such as the MatriX cylinder burner, Inox‑Radial heat exchanger and integrated Grundfos AquaBloc hydraulic unit, as well as optional accessories and installation aids.
The document also lists warranty terms, performance data, dimensions and flue requirements, and includes a technical specification table for the 100‑W and 200‑W models, helping installers and specifiers choose the appropriate configuration.
Covers: Vitodens 100‑W Combination · Vitodens 100‑W System · Vitodens 100‑W Open‑vent · Vitodens 100‑W P25/P29 · Vitodens 200‑W Combination · Installation features
Latest Viessmann manuals
Viessmann Vitodens 111-W Installation and Service Instructions
Installation Guide 112 pages · 15.5 MB · ENInstallation and service guide for the Viessmann Vitodens 111-W gas condensing boiler, covering safety, setup, commissioning and maintenance.
Viessmann Vitodens200-W WB 2B Series Operating Instructions & User Information Manual
User Manual 44 pages · 902 KB · ENThe Viessmann Vitodens200‑W WB 2B Series operating instructions provide safety, installation, start‑up, and maintenance guidance for this wall‑mounted…
Viessmann Vitodens 100-W Domestic Product Guide
Product Leaflet 60 pages · 5.7 MB · ENThe Viessmann Vitodens 100-W domestic product guide provides an overview of features, warranty, installation options and technical specifications for the…
Which document do I need?
Installation Guide
Mounting, wiring and first power-up. Read it before the hardware goes in.
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in Viessmann manuals
What is the IP rating of the Vitodens 111‑W boiler?
The boiler has an IP rating of IP X1.
From: Viessmann Vitodens 111-W Installation and Service Instructions
What is the heating output range of the Vitodens 111‑W?
The boiler can deliver heating output from 3.2 kW up to 32 kW.
From: Viessmann Vitodens 111-W Installation and Service Instructions
How often should the boiler be serviced?
The boiler and heating system should be inspected and serviced at least once a year by a qualified heating contractor.
From: Viessmann Vitodens200-W WB 2B Series Operating Instructions & User Information Manual
