Viessmann Vitotron 100 VMN3-24 User Manual

Vitotron 100
Type VMN3, VLN3
Electric instantaneous water boiler for central heating
6155049 GB 6/2020
Installation and
operating instructions
VITOTRON100

Viessmann Vitotron 100 VMN3-24 Specifications

General

Brand	Viessmann
Model	Vitotron 100 VMN3-24
Category	Boiler
Language	English

Summary

Safety Instructions

Safety Instructions Explained

Explains hazard symbols and notes for safety.

System Safety Practices

Working on System Safety

Safety procedures for maintenance and repair.

Operating Safety

Safety measures for system operation and water escape.

Installation Information and Requirements

System Requirements and Flushing

Specifies conditions for boiler installation and system flushing.

Preparing for Installation

Connecting to the Central Heating System

Details the process of connecting the boiler to the heating system.

Installation Sequence - Core Assembly

Assembly and Installation Steps

Step-by-step guide for physically installing the boiler.

Installation Sequence - Component Access

Electrical Installation and Connections

Single and Three-Phase Power Connections

Wiring guides for single and three-phase power systems.

Power Supply Configuration

Selecting the Power Supply Type

Guide for configuring the boiler based on the electrical system type.

Sensors and Control Device Integration

Connecting External Sensors and Controls

System Expansion Guide

Extending with Additional Heating Circuits

Control Panel Interface and Usage

Control Panel Overview and Navigation

Control Panel Operating Modes

Operating, Standby, and Configuration Modes

Configuration Menu Navigation

Navigating the Configuration Menu

Configuration Parameters

Setting Configuration and Operation Parameters

Service and Configuration Access

Entering Service and Configuration Menus

Heating Curve Adjustment (VMN3)

VMN3 Heating Curve Settings

VMN3 PCB Description

MSK.80/04 VMN3 PCB Layout and Function

VLN3 PCB Description

MSK.80/05 VLN3 PCB Layout and Function

VMN3 Electrical Schematic

MSK.80/04 VMN3 Wiring Schematic

Electrical schematic diagram for the MSK.80/04 PCB in VMN3 boilers.

VLN3 Electrical Schematic

MSK.80/05 VLN3 Wiring Schematic

Electrical schematic diagram for the MSK.80/05 PCB in VLN3 boilers.

Connecting Optional Appliances

Integrating Optional Devices

Wiring Diagrams

Wiring Diagram for 4-8 kW Output

Detailed wiring diagram for boilers with 4-8 kW output.

Wiring Diagram for 12-24 kW Output

Detailed wiring diagram for boilers with 12-24 kW output.

PCB Wiring Connections

PCB Connections for 4-8 kW (VLN3, VMN3)

PCB Connections for 12-24 kW (VLN3, VMN3)

Fault Message Troubleshooting

Fault Messages and Their Causes

Table of error messages, their descriptions, and potential causes.

Service and Test Mode Operations

Service Test Mode Guide

Instructions on using the service test mode for diagnostics.

Service Test Mode Details

Testing Power Modules and Sensors