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Vaillant VUW 356/6-3 User Manual

Vaillant VUW 356/6-3
48 pages
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Installation and maintenance instructions
ecoFIT sustain
825 - 835
GB, IE
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 VUW 356/6-3 Specifications

General IconGeneral
MountingWall
Output Power35.6 kW
Max. nominal heat output35.6 kW
Output35.6 kW
Efficiency98 %
Fuel TypeGas
Dimensions (HxWxD)700 x 400 x 300 mm
Weight45 kg
Max. operating pressure3 bar
FuelNatural gas/LPG

Summary

Safety Information

1.1 Action-Related Warnings

Classifies warnings by danger severity using symbols and signal words.

1.2 Intended Use

Defines the product's intended purpose and prohibited uses.

1.3 Safety Risks and Precautions

Details various risks (gas, electric shock, burns, etc.) and necessary safety measures.

Set-up Procedures

4.1 Unit Transport and Handling

Provides guidance on safe manual handling of the unit, considering its weight.

4.5 Minimum Installation Clearances

Specifies required clearances around the unit for safe operation and maintenance.

4.8 Wall-Mounting the Product

Guides on checking wall capacity and mounting procedures, including notes for rear air/flue connection.

Installation Procedures

5.2 Gas and Water Connections

Covers essential safety precautions and procedures for connecting gas and water lines.

5.4 Condensate Discharge Pipe Installation

Provides instructions for connecting the condensate drain, including material choice and fall requirements.

5.5 Electrical Installation Safety

Outlines critical safety measures and procedures for electrical connections, requiring qualified personnel.

Operation and Start-up

6.3 Accessing Installer Level

Details the procedure for accessing and navigating the installer level menu.

7.1 Initial Start-up Procedure

Outlines the mandatory steps for initial start-up, requiring a checklist and qualified personnel.

7.4 Heating Water Quality and Treatment

Covers checking and treating heating water to prevent corrosion and ensure quality.

7.5 Water Pressure Safety

Details precautions regarding insufficient water pressure and its effects on the product.

7.7 Heating Installation Filling and Purging

Guides on filling the system and purging air from radiators and the unit.

7.11 Gas Setting Checks

Details procedures for checking gas connection pressure and related safety measures.

7.12 Leak-Tightness Checks

Instructs on checking the gas pipe, heating, and hot water circuits for leaks.

Adapting to Heating Installation

8.4 DHW Temperature Setting

Details setting the DHW temperature, including legionella prevention and water hardness considerations.

Handing Over to End User

End User Information and Safety

Covers explaining safety features, operation, maintenance, and passing on documentation to the user.

Troubleshooting Guide

10.1 Eliminating Faults

Provides guidance on identifying and resolving faults using check programmes and fault codes.

10.6 Replacing Defective Components

Provides instructions for replacing various components like the burner, gas-air unit, and heat exchanger.

Inspection and Maintenance

11.3 CO2 Content Checks

Guides on checking and setting the CO2 content, essential for combustion analysis.

Decommissioning the Product

Product Decommissioning Steps

Details the process of safely switching off and disconnecting the product.

Appendix Contents

C Fault Codes Overview

Lists fault codes (F.xx) and their possible causes for troubleshooting.

F Inspection and Maintenance Work Schedule

Outlines required inspection and maintenance tasks with their intervals.

H Commissioning Checklist

Refers to the Benchmark Commissioning and Servicing section for required installation checks.

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