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Vaillant VCW DE 194/4-5 A-H User Manual

Vaillant VCW DE 194/4-5 A-H
48 pages
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Installation and maintenance instructions
atmoTEC exclusive,
atmoTEC plus
VC, VCC, VCW
DE
Publisher/manufacturer
Vaillant GmbH
Berghauser Str. 40 D-42859 Remscheid
Tel. +492191180 Fax +492191182810
info@vaillant.de www.vaillant.de

Table of Contents

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Vaillant VCW DE 194/4-5 A-H Specifications

General IconGeneral
BrandVaillant
ModelVCW DE 194/4-5 A-H
CategoryBoiler
LanguageEnglish

Summary

Safety

Action-related warnings

Classification of warnings by danger severity using symbols and signal words.

Risk caused by inadequate qualifications

Specifies work requiring competent persons due to potential risks.

Risk of death from escaping gas

Actions to take if gas is detected in the building to prevent fatal risks.

Product description

Set-up

Installation

Installing the gas connection

Procedures for connecting the gas supply to the product.

Installing the water connections

Steps for connecting domestic hot and cold water to the product.

Installing the heating flow/return

Procedures for connecting the heating flow and return pipes.

Connecting the flue pipe

Guidelines for correctly connecting the flue pipe for safe exhaust removal.

Electrical installation

Procedures and safety precautions for electrical connections by qualified personnel.

Operation

Start-up

Checking and treating the heating water/filling and supplementary water

Procedures for ensuring water quality and treating it before filling.

Filling the heating installation

Steps for filling the heating system with water and checking pressure.

Purging the heating installation

How to remove air from the heating system after filling.

Checking and adjusting the gas setting

Procedures for verifying and adjusting gas type and connection pressure.

Adapting the unit to the heating installation

Handing the product over to the end user

Risk of death from legionella

Crucial information for the user regarding legionella prevention measures.

Inspection and maintenance

Observing inspection and maintenance intervals

Adhering to manufacturer's recommended intervals for checks.

Checking the flue gas sensors

Procedure to test the functionality of flue gas sensors.

Troubleshooting

Checking the pre-charge pressure of the expansion vessel

How to check and adjust the expansion vessel's pressure.

Eliminating faults

Methods for resolving fault codes and messages displayed by the product.

Decommissioning

Appendix

Fault messages – Overview

Comprehensive list of fault codes, their meanings, and possible causes.

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