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Viessmann VITODENS 222-W User Manual

Viessmann VITODENS 222-W
72 pages
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Operating instructions
for the system user
VIESMANN
Control unit with 3.5 inch black/white screen
VITODENS 200-W/222-W/222-F/242-F
6172108 GB 3/2021
Please keep safe.

Table of Contents

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Viessmann VITODENS 222-W Specifications

General IconGeneral
EfficiencyUp to 98% (Hs) / 109% (Hi)
Output Range1.9 to 35 kW
Integrated Cylinder Capacity46 liters
Energy Efficiency ClassA
Fuel TypeNatural Gas, LPG
Water Content3.5 liters
Max. Working Pressure3 bar
Flue Gas Connection60/100 mm
TypeCondensing boiler
Modulation Range1:10
Connection for HeatingG 3/4

Summary

Safety Instructions

For your safety

General safety advice to prevent accidents and material losses.

Safety instructions for working on the system

Safety guidelines for authorized personnel performing work on the heating system.

If you smell gas

Critical safety procedure for gas leaks, including immediate actions.

What to do if water escapes from the appliance

Safety procedures for dealing with water leaks and electrical shock risk.

Introductory Information

Intended use

Defines the appliance's purpose and scope of application for domestic use.

Product information

Details about the control unit, operating modes, and communication capabilities.

Commissioning

Information regarding the initial setup and user instruction by a contractor.

Your system is preset

Description of the factory default settings for various operating modes.

Operation

Operating principles

Explanation of how the system functions and is controlled.

On-screen buttons

Guide to interacting with the control unit via the touch screen interface.

Overview of the "Main menu"

Navigation structure for accessing system settings and functions.

Quick View

Checking the system status

Procedure to check the current system status and identify faults.

Changing the temperature for the current temperature level

How to adjust the set temperature for heating circuits.

Changing the temperature for DHW

How to adjust the set temperature for domestic hot water.

Time Programs

Procedure for setting a time program

Instructions for inputting and configuring time-based operating schedules.

Time programs and time phases for central heating

Details on setting heating schedules for different times of the day.

Copying the time program to other days of the week

Method for duplicating existing time programs to other days.

Central Heating

Setting room temperature for a heating circuit

Adjusting the desired room temperature for individual heating circuits.

Switching central heating on or off (operating program)

How to activate or deactivate central heating via operating programs.

Saving energy during long periods of absence

Using the 'Holiday' function to reduce energy consumption during absences.

DHW Heating

DHW temperature

Setting the desired temperature for domestic hot water.

One-off DHW heating outside the time program

Procedure for manually boosting domestic hot water heating.

Increased DHW hygiene

Activating functions to maintain high domestic hot water hygiene standards.

Further Adjustments

Setting the "Time" and "Date"

Instructions for setting the system's internal clock and date.

Switching internet access on or off

Enabling or disabling remote system control via an app.

Restoring factory settings

Procedure to reset all user configurations and values to factory defaults.

Checks

Checking information

How to retrieve and view current system data and parameters.

Checking service messages

Monitoring system alerts related to maintenance intervals.

Checking fault messages

Procedure for diagnosing and reviewing system faults.

Resetting the burner after a burner fault

Steps to reset the burner following a fault condition.

Switching On and Off

Switching the system off

Instructions for safely powering down the entire heating system.

Switching system on

Procedure for starting up the system and preparing it for operation.

What to do if...

Rooms are too cold

Troubleshooting steps when room temperatures are below the set level.

There is no hot water

Troubleshooting steps when domestic hot water is not available.

"Burner fault" is displayed

Specific instructions for handling a displayed burner fault message.

Maintenance

Inspection and maintenance

Information on scheduled servicing and regulatory requirements.

Safety valve (DHW cylinder)

Procedure for checking the safety valve on the DHW cylinder.

Damaged cables / lines

Safety instructions for dealing with damaged electrical connections.

Appendix

Overview menu

A guide to navigating the system's menu structure.

Overview of main menu

Detailed breakdown of all available main menu options.

Terminology

Definitions of technical terms used throughout the manual.

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