Vaillant ecoTEC pro 24 User Manual

Supplied By www.heating spares.co Tel. 0161 620 6677
For the installer
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ecoTEC pro 24
Instructions for installation and servicing
ecoTEC
Wall hung room sealed fan assisted condensing boiler
GB

Vaillant ecoTEC pro 24 Specifications

General

Model	ecoTEC pro 24
Category	Boiler
Output	24 kW
Fuel Type	Natural Gas
Boiler Type	Combi
Mounting	Wall-mounted
ERP Rating	A
DHW Output	24 kW
Max. working pressure	3 bar
Fuel	Natural Gas
Warranty	2 Years
Efficiency	89.3%
Dimensions	720mm x 440mm x 338mm

Summary

1 Introduction

Notes on the documentation

Information on manual structure, liability, and related documents.

Introduction to ecoTEC Boilers

Overview of ecoTEC boiler types, their function, and models.

General Installation Notes

Boiler design for sealed systems, mounting, and flue compatibility.

CE Marking and Compliance

Compliance with EU directives for gas appliances and EMC.

Gas Council Numbers

List of gas council approval numbers for different ecoTEC models.

2 Boiler specifications

Technical Data

Detailed technical specifications including output, dimensions, efficiency, and performance data.

Boiler Dimensions

Diagrams showing the physical dimensions and connection points of the boiler.

Boiler Function Elements

Diagrams illustrating the function elements of combination and system boilers.

Type Plate Location

Information on the location of the boiler's type plate.

3 General requirements

Room Sealed Appliance Remarks

Requirements for flue systems and installation instructions.

Related Documents and Standards

Lists relevant British Standards, regulations, and publications for installation.

Contents Included with Delivery

Details the components included in the boiler's packaging.

Installation Site Selection

Guidelines for selecting a suitable location for boiler installation, considering clearances and environment.

Gas Supply Requirements

Requirements for gas supply installation, pipe sizing, and leak checks.

Flue Pipe Systems

Information on Vaillant flue pipe systems, including standard and optional sizes.

Flue Termination Requirements

Specifies requirements for flue terminal positioning and clearances according to standards.

Air Supply Considerations

Discusses air supply requirements and ventilation for cupboard installations.

Electrical Supply Requirements

Details electrical connection requirements, safety, and wiring standards.

System Requirements Guide

Outlines requirements for the heating system, including circulation, filling, and pressure components.

4 Boiler Installation Sequence

Transporting the Appliance

Safety guidelines and recommendations for lifting and moving the boiler.

Required Clearances

Specifies necessary clearances around the boiler for installation and servicing.

Selecting the Boiler Position

Guidance on choosing the optimal location for the boiler based on fluing and access.

Unpacking the Boiler

Instructions for safely removing the boiler from its packaging.

Using the Boiler Template

Steps for using the wall template to mark fixing and connection points.

Flue Exit Preparation

Instructions for marking and preparing the flue exit hole.

Fitting the Hanging Bracket

Guidance on securely installing the boiler's hanging bracket.

Flue System Installation

Directs users to separate instructions for flue system installation.

Fitting the Boiler

Steps for lifting and hanging the boiler onto the bracket.

Removing the Front Case

Procedure for removing the boiler's front casing for access.

Heating System Preparation

Important advice on cleansing the heating system before connecting the appliance.

Gas Connection Procedure

Detailed instructions for making a safe and correct gas connection to the boiler.

Water Connections

Instructions for connecting the cold water inlet and hot water outlet pipes.

Condensate Drain Pipe

Guidance on connecting the condensate drain pipe and its requirements.

Heating Connections

Instructions for connecting the heating flow and return pipes and the pressure relief valve.

Flue System Connection

Refers to separate instructions for flue system connection.

Electrical Connection

Comprehensive instructions for safe electrical connection, including wiring diagrams.

4.15 Controls

Vaillant Controls and Accessories

Lists compatible Vaillant controls and their connection methods.

External Electrical Controls

Explains how to connect external controls like time switches and thermostats.

External Timer and Thermostat Wiring

Provides a wiring diagram for connecting time switches and thermostats.

Optional Plug-in Timer Accessories

Refers to separate instructions for optional timer accessories.

VR 65 Control Center Connection

Details how to connect the VR 65 control center for system integration.

Thermostatic Radiator Valves

Notes the boiler's compatibility with TRVs and recommends control interlocks.

4.17-4.20 Boiler Operation Features

Frost Protection

Explains the boiler's integral frost protection feature and how to protect the system.

Circulating Pump Operation

Describes the built-in circulating pump and its automatic overrun function.

Anticycling Economiser Control

Explains the control that prevents energy-wasting short cycling.

Automatic Pump Spin Control (APS)

Details the APS feature that prevents pump seizure during periods of inactivity.

5 Commissioning

Preliminary Electrical Checks

Specifies checks for electrical safety, continuity, and polarity.

Gas Supply Checks

Outlines inspection, leak testing, and purging of the gas installation.

Cold Water Supply Check

Instructions for filling and purging the domestic hot water circuit.

Filling and Bleeding Heating System

Step-by-step guide for filling and bleeding the heating system.

Checking Filling Pressure

How to check and adjust the heating system's cold fill pressure using the manometer.

ecoTEC Plus Filling Loop

Details the use of the filling loop on ecoTEC plus combination boilers.

Filling Heating System (Pro/System)

Instructions for filling systems without a dedicated filling loop.

First Time System Filling

Comprehensive procedure for filling the heating system, including bleeding radiators.

Initial System Flush (Cold)

Procedure for flushing the heating system to remove installation debris.

Filling the Condensate Siphon

Instructions for filling the condensate trap to prevent fume escape.

Adjusting Pumping Capacity

How to adjust the pump speed for optimal heating system performance.

Adjusting the By-pass Valve

Guidance on adjusting the boiler's internal by-pass valve.

Checking Gas Supply

Procedures for checking gas inlet pressure and gas rate.

Refitting the Boiler Case

Steps for correctly refitting the boiler's front casing.

Adjusting Central Heating Output

How to adjust the boiler's central heating output range.

Gas Changeover Procedure

Information on converting the appliance between natural gas and LPG.

Functional Checks (Part II)

Detailed procedures for performing essential functional checks on the appliance.

Handing Over to the User

Guidance on instructing the user on operation, safety, and maintenance.

6.3 Vaillant Warranty

Warranty Information

Information regarding the appliance's warranty terms and conditions.

7 Inspection and Maintenance

Initial Inspection and Safety

Recommendations for regular safety inspections and maintenance checks.

Servicing the Burner Module

Detailed steps for removing, cleaning, and refitting the burner module.

Cleaning the Condensate Siphon

Procedure for cleaning and refilling the condensate siphon.

Checking the Expansion Vessel

Instructions for checking the expansion vessel's charge pressure.

Recommissioning the Boiler

Steps to follow after maintenance to recommission the boiler.

Test Operation After Maintenance

Checks to perform after any maintenance task to ensure proper operation.

8 Troubleshooting

Logical Fault Finding Procedure

A systematic approach to diagnosing and resolving boiler faults.

Test Programs for Diagnostics

Lists and explains various test programs available for diagnostics.

Resetting Parameters to Factory Settings

Procedure for restoring appliance settings to factory defaults.

9 Parts Replacement

Safety Instructions for Parts Replacement

Essential safety precautions before replacing any boiler components.

Replacing the Burner

Step-by-step guide for replacing the boiler's burner.

Replacing Fan or Gas Valve

Instructions for replacing the fan or gas valve assembly.

Replacing the Expansion Vessel

Procedure for replacing the boiler's expansion vessel.

Replacing Primary Heat Exchanger

Steps for safely removing and replacing the primary heat exchanger.

Replacing Electronics and Display

Instructions for replacing the electronic control unit and display.

CO2 Content Check and Adjustment

Guidance on checking and adjusting the CO2 content for optimal combustion.

10 Recycling and Disposal

Appliance and Packaging Disposal

Guidelines for environmentally responsible disposal of the boiler and packaging.

11 Vaillant Service Information

Service and Maintenance Agreements

Information on obtaining regular servicing and maintenance agreements.

Appendix

EC Declaration of Conformity

Statement confirming compliance with relevant European directives.

Benchmark Commissioning Checklist

Reference to the commissioning checklist for installers.