Baxi Potterton ECOGEN 24-1.0 User Manual

User’s Operating Instructions &

Important Warranty Information

Please keep these instructions in a safe place.

If you move house, please hand them over to the next occupier.

Ecogen 24/1.0

Gas Fired Wall Mounted Condensing Boiler

and Power Generator

Natural Gas

Baxi Ecogen 24

G.C.No41 075 60

© Baxi Heating UK Ltd 2010 All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, or stored in any retrieval system of any nature (including in any database), in each case whether electronic, mechanical, recording or otherwise, without the prior written permission of the copyright owner, except for permitted fair dealing under Copyrights, Designs and Patents Act 1988.

Applications for the copyright owner’s permission to reproduce or make other use of any part of this publication should be made, giving details of the proposed use, to the following address:

The Company Secretary, Baxi Heating UK Ltd, The Wyvern Business Park, Stanier Way, Derby, DE21 6BF.

Full acknowledgement of author and source must be given.

WARNING: Any person who does any unauthorised act in relation to a copyright work may be liable to criminal prosecution and civil claims for damages.

1.0 Quick Reference Guide 3

2.0 Introduction 4

3.0 The Programmers 5

4.0 Setting the Time 6

5.0 Setting the Central Heating Times 7

6.0 Setting the DHW Times 9

7.0 Mode Selection/Temp Adjustment 11

8.0 Contents of Other Functions 14

9.0 Resetting the Boiler 16

10.0 Clearance 17

11.0 Error Codes 18

12.0 Care of the boiler 20

13.0 Legislation 21

14.0 Notes 22

Section Page

Contents

Boiler Controls - see opposite page

for Operating Quick Reference Guide

This appliance contains a pressure vessel filled with Helium to 23 bar. Do not strike, drop, drill or puncture the vessel. Do not unbolt any of the covers or flanges. The vessel contains no user serviceable parts. Dispose of safely.

0086

The Benchmark Scheme

Baxi Heating UK Ltd is a licensed member of the Benchmark Scheme which aims to improve the standards of installation and commissioning of domestic heating and hot water systems in the UK and to encourage regular servicing to optimise safety, efficiency and performance.

Benchmark is managed and promoted by the Heating and Hotwater Industry Council. For more information visit www.centralheating.co.uk

Legionella

If the DHW cylinder has been fitted with a control sensor instead of a thermostat

for increased efficiency, the control will recognise this and automatically initiate an

anti-legionella function. In this case the user should be aware that once a week the

DHW set point is overridden and the cylinder is heated to 65° C for 10 minutes.

The default time for this action is monday 8am every week.

If the set point has been reduced to say 40° C for safety reasons, the users must

bear in mind that the temperature around this time may be much hotter than usual.

The time of the function may be altered or the action disabled.

This appliance contains a small scale embedded generator (SSEG). Both the District Network Operator and the Electricity Provider must be informed, this is a legal requirement - see section 12.3.

1.0 Quick Reference Guide

Burner in Operation 1 - Engine 2 - Supplementary

Heating to the Room temperature Set Point

Heating to the Reduced Set Point

Central Heating Times Active

DHW Time Active

Combustion Check Function Active

Holiday Function Active

Manual Overide

Time Switch Function Active

Communication between POU & PCB Control Established

POU Programmed as Room Unit

Error Message

Standby - Appliance ON/OFF

Outdoor Sensor Connected

System / Appliance Attention Required

Maintenance / Special Mode

Change Battery (only if radio control fitted)

Display showing all available segments

Display Descriptions

Programmable Operator Unit (POU)

Menu Button

Easy Menu

Button

Dial Knob (Turn /Push Select)

The Easy menu button

Commonly required functions are available more quickly via the easy menu button. To access, press the easy menu button and scroll through confirm your selection by pressing the dial button.

Commonly required functions are shown in order below: -

1. Standby/operation - the on/off switch - in the off mode frost protection for the appliance is active: displays when in standby.

2. Hot water boost - The domestic hot water is heated to the required temperature once.

3. Central heating mode CH1 - easy access to change the operating mode see Section 7.1

4. Room temperature CH1 - The central heating setpoint temperature can be altered permanently.

5. Hot water mode - easy access to change the operating mode see Section 7.4

6. Hot water temp setpoint - The hot water setpoint temperature can be altered permanently as long as a tank sensor is fitted. If no sensor is fitted --- appears.

24 hour time bar for central heating and domestic

hot water - shows active programme times

- Default 6am - 9am, 11am - 12pm & 15pm - 22pm

Standby

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Text 1 Text 2 Text 3

2.0 Introduction

2.1 Description

1. The appliance incorporates a Stirling engine which is capable of generating between 0.4 – 1.0 kW of electrical power depending on the running conditions of the heating system. High return temperatures especially above 65°C will reduce the power generation. It is therefore in the interests of the householder to ensure that the central heating system is maintained and working as efficiently as possible. Balance the radiators in the central heating system so that there is suitable drop in temperature across each radiator. 20°C is optimum for new systems but some older radiators originally installed with non condensing appliances may only manage 11°C.

2. The use of a programmable room unit incorporating a room sensors (as apposed to a room thermostat) will also improve the power generation.

3. If the return temperature to the appliance gets too hot the engine burner will switch off to protect the engine – in this case the supplementary burner will light on its own until the return temperature has cooled sufficiently and the engine burner will be enabled again.

4. The electricity generated in this manner if not consumed directly by the user is fed back into the grid. Arrangements can be made with the electricity provider to compensate the householder by way of a feedin tariff. See section 13.3.

5. It is your responsibility to contact your electricity supplier and inform them that you have installed a Baxi Ecogen which will generate electricity. This is a legal requirement.

6. Operation and control is similar to a domestic boiler and is fully automatic.

7. All interactions with the appliance are either through the removable Programmable Operator Unit (POU) on the front of the appliance or on a remote wall cradle.

2.2 Important Notes

1. Read and follow these instructions thoroughly before switching on and operating this appliance. These instructions must be followed and warning labels must be adhered to.

2. As with any domestic boiler, flammable materials MUST NOT be placed near this appliance and materials emitting flammable vapours must not be stored in the same room.

Do not position a kettle or toaster directly below the appliance.

3. The appliance MUST NOT be tampered with, abused or any sealed components adjusted as this may result in a hazardous situation.

4. Please note that because of the high efficiency of the appliance, condensate (water) is produced from the flue gases. A condensate ‘plume’ (water vapour) may also be seen coming out of the flue.

Gas Connection

5. Your Baxi Ecogen appliance has been installed by a Gas Safe registered installer– this is both good safe working practice and complies with the current gas safety regulations.

Electrical Connection

6. Your Baxi Ecogen appliance has been installed in accordance with the Installation Instructions, this means that: The appliance has been earthed. The electricity supply to the appliance is 230V ~ 50Hz.

7. Connection to the electricity supply has been made in a way that allows complete isolation of the electricity supply from the appliance. The isolation switch is located in an accessible position within your installation.

8. It is a legal requirement that both the District Network Operator (DNO) and the electricity provider are informed of the installation of this appliance - see section 13.3.

NOTE: In the event of a power failure the appliance will turn off automatically and will not restart for at least 3 minutes after the power supply has been restored.

POU

Wall Cradle (Accessory)

POU

3.0 The Programmers

3.1 Getting Started

1. Ensure that both gas and electricity are turned on to the appliance.

2. The Gas Safe registered installer will have set-up the appliance to a programme of your choice and it should be providing heat and hot water in line with your requirements. These can be altered via the wall-mounted room unit or the programmer on the product fascia, both of which are shown in this section. Section 4.0 and 5.0 detail how the timings and settings for your heating and hot water can be changed.

3.2 Programmable Operator Unit (POU)

1. This is located at the base of the appliance on the front cover. It displays important information about how the appliance is working and allows you to alter settings to configure the operation to your requirements.

2. It can be removed from the appliance to act as a programmable room unit (PRU) when mounted in a wall cradle accessory. This then becomes a temperature sensor and programmer.

3. If your Ecogen appliance has been installed using the existing room temperature and time controls the installer should have made sure that the appliance programs for the central heating and domestic hot water are set to 24hr operation – see sections 7.1 and 7.3 - choose ‘On’ in both cases.

4. Refer to the instructions for the existing programmers for setting the timed periods and the room temperatures. The programmable operating unit will display the boiler flow temperature and any errors see section 9 onwards.

3.3 POU as a Programmable Room Unit (PRU)

1. The Room Unit Wall Cradle accessory is available in two formats.

a) Hard Wired i.e fixed to a wall, the screen illuminates upon operation.

b) Radio Frequency, cradle mounted and portable, with no permanent screen illumination.

2. The Radio Frequency unit is powered by three AA batteries located in the rear of the unit behind a slide down panel. If battery power is depleted a warning symbols appears on the display screen, replace the batteries.

3. The operation of both Radio Frequency and hard wired units is identical.

3.4 5 LED Unit

1. The 5 LED Unit is fitted when the POU is removed and gives basic information about the state of the appliance:-

1st Green - Mains On 2nd Green - Communication Status 1st Yellow - Engine Burner On 2nd Yellow - Supplementary Burner On Red - Fault Present

2. The Reset Button may be used to reset User Errors - see Section 11.0.

5 LED Unit

Wall Cradle (Accessory)

POU

Reset Button

4.0 Setting the Time

4.1 Time Setting

The time, day, date and year can be adjusted using the POU/PRU as shown below.

Menu Button

Display Screen

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The basic display is shown. If the basic display is not showing, press the MENU button. until the basic display is shown

Press the MENU button.

Turn the Dial Knob clockwise to highlight ‘Set Time and Date’.

Press the Dial Knob to select .

Press the Dial Knob and the hour number flashes. Turn Dial to the required hour.

Press the Dial Knob and the minute number flashes. Turn Dial to the required minute. Press the Dial Knob.

Turn the Dial Knob clockwise until Day / month is shown. Press the Dial Knob and the month number flashes. Turn Dial to the required month.

Press the Dial Knob and the day number flashes. Turn Dial to the required day. Press the Dial Knob.

Turn the Dial Knob clockwise until Year is shown. Press the Dial Knob and the year number flashes. Turn Dial to the required year.

Press the Dial Knob. Time setting is now complete.

Press the MENU button twice to return to normal display screen.

Dial Knob

STEP 1

STEP 3

STEP 2

STEP 3 STEP 4

STEP 5 STEP 6

STEP 7 STEP 8

STEP 9 STEP 10

STEP 11

Tuesday

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Information

Set time and date

Operator section

Set time and date

Hours / minutes 11:07

---------------------------------------------------

Hours / minutes 09:07

Hours / minutes 11:30

Information

Set time and date

Day / month 05:06

Set time and date

Year 2008

Year 2009

Set time and date

Day / month 03:06

Set time and date

03. June 2009 11:30 Wednesday

5.0 Setting the Central Heating Times

Menu Button

Display Screen

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Dial Knob

5.1 Programming the Central Heating Times

The programmar enables control of up to three periods a day, seven days a week.

There are 3 time programs preinstalled to aid reprogramming:Time program 1 is the default with 3 time periods - Mon-Sun, 6-9, 11-12 and 15-22. Time program 2 has two time switch periods - Mon-Sun, 6-9 and 15-22. Time program 3 has one time switch period 6-22.

‘Preselection’ regimes are: Mon-Sun (Default) Mon-Fri and Sat-Sun or each day individually.

If there are two heating circuits with two PRU’s each room/floor must be programmed using the respective PRU. Choose the relevant heating circuit at STEP 3.

When programming individual days, the opportunity to copy one day to another is offered (screen 529). Lastly screen 536 enables a reset to the default values as given above.

The basic display is shown. If the basic display is not showing, press the MENU button. until the basic display is shown

Press the MENU button.

Turn the Dial Knob clockwise to highlight ‘Time central heating CH1’.

Press the Dial Knob to select .

Press the Dial Knob and the day / days regime flashes. Turn Dial to the required day or days Mon-Sun, Mon-Fri, Sat-Sun Mon, Tue, Wed, Thu, Fri, Sat, Sun Press Dial to select.

Turn the Dial Knob one click clockwise.

Press the Dial Knob and the time program regime flashes. Turn Dial to the ‘Time setting 1’. Press Dial to select and the screen goes back to STEP 6.

Turn the Dial Knob one click clockwise.

STEP 1 STEP 2

STEP 3 STEP 4

STEP 5 STEP 6

STEP 7 STEP 8

Tuesday

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---------------------------------------------------

Information

Set time and date

Operator section

Time central heating CH1

Time hot water

Time cental heating CH1

Select days

Mon - Sun

Time central heating CH1

Set to Time setting 1

Mon - Sun

Time central heating CH1

Select days

Time central heating CH1

Select default timings?

Mon - Sun

Time central heating CH1

Mon - Sun: 1st Time ON

Mon - Sun

06:00

5.0 Setting the Central Heating Times

5.1 Programming the Central Heating Times (cont)

Press the Dial Knob and the ‘2nd Time ON’ time will flash. Turn the Dial Knob to the required time. Press Dial to select.

Turn the Dial Knob one click clockwise.

Turn the Dial Knob one click clockwise and then press the Dial Knob. The ‘2nd Time OFF’ time will flash. Turn the Dial to the required time. Press the Dial to select.

Turn the Dial Knob one click clockwise and then press the Dial Knob. The ‘3rd Time OFF’ time will flash. Turn the Dial to the required time. Press the Dial to select.

Press the Dial Knob and the ‘3rd Time ON’ time will flash. Turn the Dial Knob to the required time. Press Dial to select.

STEP 11 STEP 12

STEP 13 STEP 14

STEP 15 STEP 16

Menu Button

Dial Knob

Easy Menu

Button

Display Screen

Press the Dial Knob and the ‘1st Time ON’ time will flash. Turn the Dial Knob to the required time. Press Dial to select.

Turn the Dial Knob one click clockwise and then press the Dial Knob. The ‘1st Time OFF’ time will flash. Turn the Dial to the required time. Press the Dial to select.

STEP 9 STEP 10

If --:-- appears when adjusting the ON/OFF Time it is because the ON is the same as OFF. If this is selected the

Time period will disappear. A new Time period can be introduced by starting from 24.00 and winding backwards.

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Time central heating CH1

Mon - Sun: 1st Time ON

08:00

Time central heating CH1

Mon - Sun: 2nd Time ON

11:00

Time central heating CH1

Mon - Sun: 1st Time OFF

Time central heating CH1

Mon - Sun: 2nd Time ON

10:00

11:50

Time central heating CH1 Mon - Sun: 2nd Time OFF

13:00

Time central heating CH1

Mon - Sun: 3rd Time ON

17:00

Time central heating CH1

Mon - Sun: 3rd Time ON

Time central heating CH1

Mon - Sun: 3rd Time OFF

15:00

23:00

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