Vaillant ecoVIT exclusiv User Manual

Installation and maintenance instructions
ecoVIT exclusiv
VKK 226/4 – VKK 656/4
AT, DE
Publisher/manufacturer
Vaillant GmbH
Berghauser Str. 40 D-42859 Remscheid
Tel. +49 21 91 18‑0 Fax +49 21 91 18‑2810
info@vaillant.de www.vaillant.de

Vaillant ecoVIT exclusiv Specifications

General

Brand	Vaillant
Model	ecoVIT exclusiv
Category	Boiler
Language	English

Summary

1 Safety

1.1 Action-related warnings

Classifies warnings by severity using symbols and signal words.

1.2 Intended use

1.3 General safety information

Covers essential safety aspects for installation, operation, and maintenance.

1.3.1 Risk caused by inadequate qualifications

Specifies work must be done by competent persons.

1.3.2 Risk of injury due to the heavy weight of the product

Warns about lifting and handling the heavy product.

1.3.3 Risk of death from escaping gas

Provides actions to take if gas is detected.

1.3.4 Risk of death from leaks if the product is installed below ground level

Addresses risks of liquid gas accumulation in below-ground installations.

1.3.5 Risk of death due to blocked or leaking flue gas routes

Details actions for flue gas escape and poisoning risks.

1.3.6 Risk of death due to explosive and flammable materials

Warns against using the product in areas with flammable substances.

1.3.7 Risk of poisoning caused by insufficient supply of combustion air

Emphasizes ensuring adequate combustion air supply.

1.3.8 Risk of corrosion damage due to unsuitable combustion and room air

Warns about air quality affecting product corrosion.

1.3.9 Risk of death from electric shock

Outlines safety precautions before electrical work.

1.3.12 Risk of poisoning and burns caused by escaping hot flue gases

Details operating precautions for flue gas safety.

1.3.13 Risk of death due to lack of safety devices

Stresses the importance of installing safety devices.

1.3.15 Risk of death from escaping flue gas

Explains risks of an empty condensate siphon.

1.3.16 Risk of scalding from hot potable water

Warns about scalding risks from hot water.

3 Product description

4 Set-up

4.1 Transporting the product

5 Installation

5.1 Requirements

Lists essential requirements and safety warnings for installation.

5.6 Establishing the gas and water connections

Details procedures for connecting gas and water lines.

5.6.1 Establishing the gas connection

Provides instructions and safety notes for gas connection.

5.6.2 Checking the gas line for leak-tightness

5.7 Establishing water connections

Outlines procedures for making water connections.

5.7.1 Connecting the heating flow and heating return

Details connecting the heating flow and return pipes.

5.7.2 Connecting the domestic hot water cylinder return

5.7.3 Connecting the condensate discharge pipe

Provides crucial safety and connection details for the condensate pipe.

5.8 Installing and connecting the air/flue system

Instructions for installing and connecting the air/flue system.

5.9 Electrical installation

Covers electrical installation procedures and safety warnings.

5.9.1 Opening and closing the electronics box

5.9.1.1 Opening the electronics box

5.9.1.2 Closing the electronics box

5.9.2 Wiring the cables

5.9.3 Establishing the power supply

Details how to connect the product to the main power supply.

5.9.4 Connecting electrical components

Covers connecting various electrical components like thermostats and pumps.

5.9.5 Connecting the domestic hot water cylinder

5.9.6 Connecting the control

Details connecting external controls like VRC 450/700.

6 Operation

5.10 Checking leak-tightness

7 Start-up

7.1 Carrying out the initial start-up

Outlines initial start-up procedures and safety warnings.

7.5 Checking and treating the heating water/filling and supplementary water

7.6 Filling the heating installation

7.7 Purging the heating installation

7.8 Filling the condensate siphon

7.9 Checking the gas setting

Covers checking and adjusting gas settings.

7.9.1 Checking the factory setting

7.9.2 Checking the gas connection pressure (gas flow pressure)

Details how to measure and check gas connection pressure.

7.9.3 Checking the CO2 content and, if necessary, adjusting it (air ratio setting)

Guides on checking and setting the CO2 content for the air ratio.

8 Adapting the unit to the installation

7.11 Checking the hot water generation

7.12 Checking that the product functions correctly and checking the leak-tightness

8.1 Calling up diagnostics codes

8.3 Setting the maximum flow temperature

8.5 Setting the partial heating load

8.6 Setting cylinder charging partial load

9 Troubleshooting

8.9 Handing the product over to the end user

9.1 Reading off the fault codes

Explains how fault codes are displayed and what they mean.

9.2 Eliminating faults

Provides guidance on troubleshooting and resolving faults.

9.3 Checking the status codes

9.4 Resetting parameters to factory settings

9.5 Resetting the safety cut-out

10 Carrying out inspection and maintenance work

10.3 Removing the burner assembly

10.4 Cleaning the combustion chamber

10.6 Installing the burner assembly

10.7 Cleaning the condensate siphon

10.8 Draining the product

10.9 Draining the heating installation

10.10 Completing inspection and maintenance work

Lists final checks and logs required after maintenance.

11 Decommissioning

11.1 Decommissioning the product

Appendix

C Overview of diagnostics codes

D Status codes – Overview

E Overview of fault codes

Continues the list of fault codes, possible causes, and measures.

G Wiring diagrams

G.1 Wiring diagram

G.2 Wiring diagram for the VRC 450, VRC 470 or VRC 700 control

G.3 Wiring diagram for the VRS 620 and VRC 630 control

H Inspection and maintenance work

Lists required inspection and maintenance tasks and intervals.

I Commissioning checklist

F Troubleshooting

Troubleshooting

General troubleshooting advice for common symptoms.