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Vaillant VUW 246/7-2 (H-GB) User Manual

Vaillant VUW 246/7-2 (H-GB)
64 pages
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en Installation and maintenance instructions
ecoTEC sustain
24, 28, 34
0020253094_05 - 04.11.2020

Table of Contents

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Vaillant VUW 246/7-2 (H-GB) Specifications

General IconGeneral
ModelVUW 246/7-2 (H-GB)
Boiler typeCondensing
MountingWall-mounted
Output Power24 kW
DHW output24 kW
Hot Water Output24 kW
Fuel TypeGas
Gas TypeNatural Gas
Dimensions (H x W x D)720 x 440 x 338 mm
Weight36 kg
Warranty2 years
TypeCombi

Summary

Safety

Intended Use and Qualification

Details proper usage, prohibitions, and required qualifications for safe operation.

General Safety Information

Covers critical safety warnings for gas, flue gas, electricity, weight, hazards, and water quality.

Regulations and Standards

Emphasizes adherence to national regulations, laws, and specific standards for installation.

Guarantee and Customer Service

Guarantee Registration and Support

Information on warranty registration, contact details for support, and Benchmark Scheme compliance.

Technical Data

Product Specifications Overview

Provides detailed technical data including gas category, dimensions, efficiency, and operating ranges.

Product Description

Product Identification and Features

Details CE marking, energy efficiency endorsements, identification plate, and product design elements.

Safety Devices

Explains key safety devices such as electrical supply failure protection and overheating safety.

Set-up

Scope of Delivery and Dimensions

Lists items included in the delivery and provides product dimensions for installation planning.

Installation Site and Clearances

Specifies requirements for the installation location, minimum clearances, and compartment ventilation.

Air/Flue Pipe Installation

Covers regulations, positioning, configuration, protection, and template usage for air/flue pipe systems.

Installation

Installation Preparation and Connections

Guides on preparing for installation, gas/water connections, condensate discharge, and system purging.

Flue and Electrical Installation

Details flue installation procedures and critical electrical installation safety requirements.

Operation

Installer Level Operation Modes

Explains operating concepts, accessing installer level, using diagnostics codes, and displaying status codes.

Check Programmes and Start-up

Guides on using check programmes and performing initial start-up procedures, including water quality checks.

Adapting to Heating Installation

Diagnostics Codes and Burner Control

Covers setting diagnostics codes, burner anti-cycling time, and maximum heating output adjustments.

Pump, Bypass, and Temperature Settings

Details setting pump output, bypass, maintenance intervals, and domestic hot water temperature.

Handover to End User

Instructions for final handover, user education on operation, safety, and maintenance.

Inspection and Maintenance

Maintenance Planning and Preparation

Outlines completing service records, using original seals, inspection steps, and preparing for maintenance.

Component Checks and Cleaning

Details CO2 checks, setting CO2 content, cleaning heat exchanger, burner, siphon, and strainer.

Troubleshooting and Repair

Fault Diagnosis and Rectification

Covers checking service messages, rectifying faults, calling up fault memory, and deleting fault memory.

Component Replacement Procedures

Step-by-step guides for replacing components like the burner, fan, PCB, sensors, and vessel.

Decommissioning and Disposal

Product Decommissioning

Instructions for safely and permanently decommissioning the product.

Recycling and Packaging Disposal

Guidance on correct disposal of packaging materials and the product itself.

Appendix

Inspection and Maintenance Work Table

A table listing maintenance tasks, intervals, and relevant page references for the service.

Technical Overviews and Diagrams

Provides overviews of check programmes, diagnostics codes, status codes, fault codes, and wiring diagrams.

Commissioning Flow Chart

Combustion Analysis Procedures

Step-by-step chart for verifying flue integrity and performing CO/combustion ratio checks.

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