Baxi Potterton ECOGEN 24-1.0 User Manual

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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

6.0 Setting the DHW Times

Menu Button

Display Screen

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Dial Knob

6.1 Programming the Domestic Hot Water Times

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

‘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.

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

Press the MENU button.

Turn the Dial Knob clockwise to highlight ‘Time hot water’.

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

Time central heating CH1

Time hot water

Holidays heating CH1

Time hot water

Select days

Mon - Sun

Time hot water

Set to Time setting 1

Mon - Sun

Time hot water

Select days

Time hot water

Select default timings?

Mon - Sun

Time hot water

Mon - Sun: 1st Time ON

Mon - Sun

06:00

6.0 Setting the DHW Times

6.1 Programming the Domestic Hot Water 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 hot water

Mon - Sun: 1st Time ON

06:30

Time hot water

Mon - Sun: 2nd Time ON

11:00

Time hot water

Mon - Sun: 1st Time OFF

Time hot water

Mon - Sun: 2nd Time ON

08:30

11:30

Time hot water

Mon - Sun: 2nd Time OFF

13:30

Time hot water

Mon - Sun: 3rd Time ON

17:00

Time hot water

Mon - Sun: 3rd Time ON

Time hot water

Mon - Sun: 3rd Time OFF

15:00

19:30

7.0 Mode Selection/Temp Adjustment

7.1 Selecting the Cental Heating Mode

1. There are 4 central heating modes: On - heating operates to keep the dwelling at

the comfort set point chosen by the householder continuously ie. 24hr/day, initially set at 20°C.

Timed - heating operates to keep the dwelling at

the comfort set point chosen by the householder according to the programme times, initially set at 20°C (min 10°C - max 35°C).

Reduced - heating operates to keep the dwelling at

the reduced set point chosen by the householder continuously, initially set at 5°C (min 5°C - max 20°C).

Protection - heating operates to keep the dwelling

above 5°C continuously.

2. The central heating mode can be set using either the POU

on the appliance or the room unit PRU.

3. To select the mode required: - from the main screen press

the menu button.

4. Turn Dial to ‘Temps / mode CH1’.

Press dial to select and scroll between: - Protection – Timed – Reduced – On, press dial to select.

7.2 Further Information

1. The user must be aware that in the automatic mode the

programmer is not inactive in between the programmed times, the frost protection/reduced temperature period is constantly in the background and will cause the appliance to come on if the room temperature falls below the reduced temperature setpoint (5° default) or 5°C during frost protection.

NOTE: Adjustment of the room temperature during these periods will result in a temporary change to the reduced temperature setting until the next comfort period is activated.

2. The central heating may be switched on at any time by

increasing the room temperature setpoint to a greater value than the indicated room temperature whether in or out of a programmed period. This setpoint change will remain active until the next programmed comfort period when the setpoint will revert to the permanent comfort setpoint.

Turn the Dial Knob clockwise to highlight ‘Temps / mode CH1’.

Menu Button

Dial Knob

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Easy Menu

Button

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.

Press the Dial Knob twice and then turn the Dial Knob to the required space heating mode i.e. On or Timed or Reduced or Protection. Press the Dial Knob to select.

STEP 4 - For this example choose Comfort

Turn the Dial Knob until ‘Room temperature CH1’ is displayed. Press the Dial Knob and the °C will flash, turn the Dial to set the required °C and then press the Dial Knob to select..

STEP 5

STEP 3

STEP 2

STEP 1

The Process for setting the Reduced setpoint is the same. When STEP 4 is reached choose Reduced and then continue with STEP 5 but turn Dial to ‘Reduced setpoint’.

STEP 6

Tuesday

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

Information

Set time and date

Holidays heating CH1

Temps / mode CH1

Temps / mode hot water

Temps / mode CH1

Operating mode

Temps / mode CH1

Room temperature CH1

Temps / mode CH1

Reduced setpoint

18.0 °C

10.0 °C

7.0 Mode Selection/Temp Adjustment

7.3 Selecting the Domestic Hot Water (DHW) mode

1. There are 2 DHW modes: Off - heating operates to keep the domestic

(Protection) hot water cylinder above 8°C

continuously.

On - heating operates to keep the domestic

(Timed) hot water at the comfort set point

chosen by the householder according to the programme times, initially set at 65°C.

2. The DHW mode can be set using either the POU on the

appliance or the PRU.

3. To select the mode required: - from the main screen press the

menu button, scroll down to ‘Domestic hot water’.

4. Press dial to select, select Operating mode by pressing the dial

again, scroll between : - Off and On and select by pressing the dial.

7.4 Adjusting the Room temperature set point

1. From the main screen - turn the dial until the desired

temperature is displayed, press the dial to confirm.

2. If the temperature is being adjusted from the appliance

connected to two heating circuits, the heating circuit must be chosen first.

3. Between the programmed times there is a minimum setback

or reduced temperature which is set to 5°C (see Section 7.1 STEPS 1 to 6). This may be permanently changed to set a higher minimum temperature ie. 10°C or temporarily changed by turning the dial knob between a programmed period and selecting the desired temperature. This facility may be used to heat the house outside the programmed periods.

4. The reduced temperature setting will revert to the

permanently stored value at the beginning of the next programmed period.

7.5 Adjusting the DHW Tank Temperature

1. If the tank is fitted with a tank sensor to measure the

temperature, the setpoint temperature may be adjusted using the POU/PRU as follows:-

Press the easy menu button Turn the dial knob to highlight ‘ Hot water temp setpoint’. Press the dial knob to select. Turn the dial knob to change the temperature to the desired temperature. Press the dial knob to confirm.

The maximum setpoint temperature is 65°C

The main screen will return after a short while, otherwise press the menu button to return immediately.

STEP 1 - Press the MENU button and then turn the Dial Knob clockwise to highlight ‘Domestic hot water’.

Menu Button

Dial Knob

04. November 2008 08:50

Easy Menu

Button

STEP 2 - Press the Dial

Knob to select .

STEP 3 - Press the Dial Knob again and the On Off mode will flash. While flashing turn the Dial to toggle between On and Off. Press Dial to select.

DOMESTIC HOT WATER MODE

STEP 1 - Turn the Dial Knob

and the temperature will appear. Turn the Dial Knob again and whilst flashing keep turning the dial to display the required temperature.

STEP 2 - Press the Dial Knob to select.

ROOM TEMPERATURE SETPOINT

Tuesday

Temps / mode CH1

Temps / mode hot water

Diagnostics engine

Temps / mode hot water

Operating mode

Temporary room setpoint

Valve Confirmed

7.0 Mode Selection/Temp Adjustment

HOLIDAY MODE

STEP 1 - Press the MENU button.

STEP 2 - Turn the Dial Knob to highlight

‘Holidays heating CH1’ and press the Dial

to select the start period.

STEP 3 - Press the Dial Knob and the

Day/month starts flashing, turn the Dial to

required month and press Dial to select

and then repeat to select the day.

STEP 4 - Turn the Dial Knob to highlight

‘End’ and press the Dial. The Day/month

starts flashing, turn the Dial to required

month and day as in STEP 3 to end the

holiday period.

7.6 Holiday mode

1. Holiday - When the holiday mode is activated the

‘protection’ mode is activated for the selected period see section 7.1

2. The Holiday mode is activated by using the menu button

scroll down to ‘Holiday heating CH1’, press the dial

3. Press again to set the month scroll and select – (the display

will start at 01,01) set the day scroll and select. Scroll again to ‘Operating’ level, scroll between - protection and reduced select the mode required

7.7 Programme Lock

1. There is a programme lock function available to stop the

programmer being either tampered with or accidentally altered.

2. After the programme lock has been activate, only the

temporary setpoints, comfort, reduced temperature or the functions via the easy menu such as standby/operation or HW push are available for change by the user.

3. To activate the programme lock: -

a) Press the menu button to access ‘info’, then scroll and press to choose ‘operator section’, scroll to the programme lock option, press and scroll from ‘off’ to ‘on’. Confirm by pressing the dial knob.

b) Accessing programme lines is now still possible but when attempting to alter any parameters the screen will show ‘programme locked’.

4. To remove the programme lock: -

a) To temporarily unlock the programmer press the menu button to access ‘info’ then press and hold the easy menu and dial button until ‘programme temporarily unlocked’ appears.

b) In this state any alterations can be made until returning to the standard screen when the programming lock is activated again.

c) To remove the programme lock permanently: - whilst temporarily unlocked, access the programme lock screen as described above, and press and scroll from ‘on’ to ‘off’. Confirm by pressing the dial button.

Menu Button

Dial Knob

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Easy Menu

Button

Tuesday

Time hot water

Holidays heating CH1

Temps / mode CH1

Holidays heating CH1

Day / month - -.- -

End

Holidays heating CH1

Day / month - -.- -

Start

8.0 Contents of Other Functions

8.1 Selecting Information

The following information is also available by pressing the menu button and selecting ‘information’ by pressing the Dial Knob, any error is displayed first then : -

1. Room temperature – ?C (PRU only).

2. Boiler temperature – ?C.

3. State burner – 1+2 (1=engine, 2= supplementary burner on).

4. Power – Watts.

5. Energy to date – kWh.

6. Head temp actual value (of the Stirling engine) – ?C.

7. Room temperature min (PRU only)

8. Room temperature max PRU only)

9. Hot water temp 1 (set point if tank sensor fitted) – ?C.

10. State Hot Water

11. State heating circuit CH1

12. Telephone customer service

8.2 Selecting Set time and date

The following information is also available by pressing the menu button and selecting ‘Set time and date’ by pressing the Dial Knob,

1. Hours / minutes

2. Day / month

3. Year

8.3 Selecting Operator section

The following information is also available by pressing the menu button and selecting ‘Operator section’ by pressing the Dial Knob,

1. Change language

2. Programme lock – Off/On.

8.4 Selecting Time central heating CH1

The following information is also available by pressing the menu button and selecting ‘Time central heating CH1’ by pressing the Dial Knob,

1. Select days

2. Mon-Sun,Mon-Fri,Sat-Sun,Mon,Tue,Wed,Thu,Fri,Sat,Sun

3. Select default timings – programmes 1/2/3

4.1st Time ON -- hrs/mins

5.1st Time OFF -- hrs/mins

5. 2nd Time ON -- hrs/mins

6. 2nd Time OFF -- hrs/mins

7. 3rd Time ON -- hrs/mins

8. 3rd Time OFF -- hrs/mins

9. Copy to Monday/Tuesday/Wednesday/Thursday/Friday/Saturday/Sunday.

8.0 Contents of Other Functions

8.5 Selecting Time hot water

The following information is also available by pressing the menu button and selecting ‘Time hot water’ by pressing the Dial Knob.

1. Select days

2. Mon-Sun,Mon-Fri,Sat-Sun,Mon,Tue,Wed,Thu,Fri,Sat,Sun.

3. Select default timings – programmes 1/2/3

4.1st Time ON -- hrs/mins

5.1st Time OFF -- hrs/mins

6. 2nd Time ON -- hrs/mins

7. 2nd Time OFF -- hrs/mins

8. 3rd Time ON -- hrs/mins

9. 3rd Time OFF -- hrs/mins

10. Copy to Monday/Tuesday/Wednesday/Thursday/Friday/Saturday/Sunday.

8.6 Selecting Holidays heating CH1

The following information is also available by pressing the menu button and selecting ‘Holidays heating CH1’ by pressing the Dial Knob.

1. Start – Day / month

2. End – Day / month

8.7 Selecting Temps / mode CH1

The following information is also available by pressing the menu button and selecting ‘Temps / mode CH1’ by pressing the Dial Knob.

1. Operating mode – Protection/Timed/Reduced/On

2. Comfort set point -- ?C.

3. Reduced set point -- ?C.

4. Optimum start control max – mins.

8.8 Selecting Temps / mode hot water

The following information is also available by pressing the menu button and selecting ‘Temps / mode hot water’ by pressing the Dial Knob.

1. Operating mode - Off / On

2. Hot water temp setpoint – ?C.

3. Legionella function – Off / Periodically / Fixed weekday

4. Legionella funct periodically - 1 / 2 / 3 / 4 / 5 / 6 / 7

5. Legionella funct weekday Monday/Tuesday/Wednesday/Thursday/Friday/Saturday/Sunday.

6. Legionella funct time -- hrs/mins.

7. Release HW charging – No restrictions / Eng bu only.

8.9 Service/Special operation

1. Time since maintenance - -- months

2. Telephone customer service

8.10 Selecting Diagnostics engine

The following information is also available by pressing the menu button and selecting ‘Diagnostics engine’ by pressing the Dial Knob.

1. Power – W

2. Energy to date – kWh

3. Energy since reset - kWh

4. Reset energy counter - no / yes

9.0 Resetting the Boiler

9.1 Exceptional conditions

1. In exceptional cases, the display will show an error screen see diagram opposite.

2. With the following information: An error number a short description of the error The display may or may not show a flashing spanner, a flame crossed out or both depending on whether the unit is on the appliance or the wall.

3. Pressing the menu button will return the POU to the standard

display which will now show the following symbol -

E which

indicates that an error or fault has occurred in the appliance. After 1 minute the display will automatically revert to the error screen.

4. Press the menu button twice to revert to the error display immediately. A list of error codes is shown in section 10.1. This list contains both user reset and automatic rest codes. Automatic codes are given here as they are capable of clearing automatically and do not necessarily indicate that a service visit is required.

9.2 Automatic reset

1. If a flashing spanner is shown on the POU the error may reset once the condition has cleared. Many of these automatic reset errors are connected with temperature sensors of both the system and the appliance and once the appliance has cooled it may restart. If the problem persists where the same error code is repeatedly displayed or the error will not clear you should call for a service engineer.

9.3 User reset

1. A user reset can only be carried out on the appliance POU not on a PRU.

2. To perform a user reset:-

a) on the 5 LED unit, press the reset button at the bottom of the unit, after a few seconds the red flashing LED will go out.

b) on the POU reset appears, press the dial knob twice, after a few seconds the error symbol should disappear.

3. The error will clear and the appliance will restart if there is a demand for heat as long as the error condition has cleared. The user error codes give an indication of possible problems which the user may be able to rectify such as accidental isolation of either the gas supply (error 261and 262) or the central heating circuit, pump problems etc (error 275 and 276).

4. If the error returns the fault condition is still present.

9.4

Service reset

When a flashing spanner is accompanied by a crossed out flame symbol on the appliance, a fault has occurred which requires the presence of a service engineer. When ringing the Heateam Service Department to request a service engineer please quote the error code and accompanying message.

see also section 17.3 in the Installation and service manual.

Button

Dial Knob

04. November 2008 08:50

Easy Menu

Button

To reset - Press the Dial

Knob and the Yes / No mode will appear. While flashing turn the Dial to toggle between Yes and No. Select Yes and press the Dial Knob to select.

5 LED

ERROR Light Flashes

ERROR Light Out

POU/PRU

Reset Type

Auto

User

Service

Tuesday

Error

20:Boiler sensor 1

04. November 2008 08:50 Tuesday

Error

164:Flow press switch HC

Error

157: Boiler flow thermostat

Reset ?

Error

157: Boiler flow thermostat

Reset ?

Error

266:Fan Fault

Yes

10.0 Clearances

200mm Min

950mm

450mm

300mm Min

5mm Min

450mm Min

For Servicing

Purposes

In Operation

60mm Min

426mm

10.1 For your Safety

1. This appliance must have been installed in accordance with the manufacturer’s instructions and the regulations in force.

2. Any modification that may interfere with the normal operation of the appliance without express written permission from the manufacturer or his agent could invalidate the appliance warranty. In GB this could also infringe the Gas Safety (Installation and Use) Regulations.

3. Your boiler must not be operated without the casing correctly fitted.

4. Do not interfere with any sealed components on this boiler.

5. Take note of any warning labels on your boiler.

6. Your boiler should have the following minimum clearances for Safety and Maintenance :-

Top - 200mm Bottom - 200mm Left side - 5mm Right Side - 60mm Front - 5mm (In Operation)

- 450mm (For Servicing)

7. If your boiler is installed in a compartment, do not use it for storage purposes. Do not obstruct any purpose provided ventilation openings.

8. Flammable materials must not be stored in close proximity to your boiler.

9. Avoid skin contact when your boiler is in operation, as some surfaces may get hot e.g. pipework.

10. Ensure that the flue terminal, outside the house, does not become damaged or obstructed, particularly by foliage.

11. It is important that the condensate drain system is not blocked, modified or damaged in any way as this would affect the operation of your boiler. Your installer should have insulated any exposed pipework.

GB - Heating Industry definition meaning England, Scotland, Wales, Northern Ireland, Isle of Man and the Channel Isles

11.0 Error Codes

Error code: Display Description Lockout/Reset action

Eng Sup

10: Outside sensor Fault outside temp sensor1 AR AR 20: Boiler flow sensor Fault boiler flow temp sensor AR AR 40: Boiler return sensor Fault return temp sensor boiler AR AR 50: DHW tank sensor Fault DHW1 sensor AR AR 60: Room sensor 1 Fault room temp sensor HC1 AR AR 65: Room sensor 2 Fault room temp sensor HC2 AR AR 83: BSB short-circuit Boiler system bus short-circuit AR AR 84: BSB address collision More then 1 room units are assigned to the same HC

Assign one of them to HC2 or assign QAA7x not as room unit AR AR 85: Radio communication Communication to radio device interrupted AR• AR• 91: Data loss in EEPROM Failure in Class B-SW: Irreparable data loss in EEPROM NRP NRP 92: Device electronics error RAM failure, HBC processor register failure, blocking chain

undefined (toggling), safety chain discrepancy.

Reset: Press Service Reset within 20 seconds after Power up NRP NRP 95: Time of day invalid The real time clock unit detected corrupted time of day. 96: Minor SW failure Failure in Class B-SW: Stack overflow or program sequence failure AR AR 97: SW or HW failure Failure in EGC-SW which causes non-volatile lock. NRP NRP 127: Legionella temperature Legionella temperature not achieved within 48 hours AR+ AR+ 157: Boiler Flow Overheat stat Boiler flow overheat thermostat / safety chain open UR UR 158: Condensate Condensate switch of safety chain opened UR UR 164: Flow Low flow or faulty flow switch AR AR 257: Pack sensor Fault pack temp sensor 258: Pack over- temp Internal ambient temperature to high AR AR 259: CJC sensor Fault cold junction compensation sensor AR 261: Loss of Engine flame No flame after five ignition tries in Engine UR 262: Loss of Supplementary flame No flame after five ignition tries in Supplementary UR 263: Engine BCU failure Multiple communication request of Engine Burner Control Unit

unsuccessful.

1) Failure caused by BCU ARP

2) BCU Communication Timeout on Main Control Board AR

264: Supp. BCU failure Multiple communication request of Supp. Burner Control Unit

unsuccessful.

1) Failure caused by BCU ARP

2) BCU Communication Timeout on Main Control Board AR 265: BCU failure Not supported in Main Control Board 270: excessive temp. diff. Excessive max temperature difference across the heat exchanger

during 5 minutes or excessive limit temperature difference. If temperature difference fell below (threshold - switching differential boiler): automatic reset

- when the maximum setting was exceeded immediately AR AR

- when the limit value was exceeded after 10 minutes AR 10’ 274: Dry fire protection Flow switch did not close within 4 minutes UR UR 278: Max Temp Rise Maximum flow temperature rise exceeded, automatic reset after

10 minutes AR 10’

11.1 List of Error Codes

In the table below: - PCB = Main Control Board, BCU = Burner Control Unit.

UR = User Reset, AR = Automatic Reset, ARP = Automatic Reset after Power Down

NOTE: An automatic reset is only done if the fault condition has cleared.

• After 10 minutes or after down power (ARP) + Will clear message if 65°C is achieved - does not inhibit appliance on.

11.0 Error Codes

Error code: Display Description Lockout/reset action

Eng Sup

280 : Engine dome overtemp Engine dome overtemp has operated AR 282: G83/ENS/G1M G83/ENS module has detected an unhealthy mains condition AR 285: Alternator Short Power monitor IC has detected a short-circuit condition AR 287: Eng head under temp Engine head temperature thermocouple measurement below

103 degrees C when the CX relay is energised AR 298: False flame engine Ionisation probe of engine burner detected false flame AR 299: False flame supplementary Ionisation probe of supplementary burner detected false flame AR 300: Eng head under temp Engine head control temperature less than 150 degrees C when

CX relay is energised UR 301: Eng head over temp Engine head control temperature greater than 540 degrees C AR 302: Eng head thermocouple Magnitude of the difference between the engine head control

and limit thermocouples is greater than 100 degrees C UR 303: Control thermocouple Engine head control thermocouple failure UR 304: Limit thermocouple Engine head limit thermocouple failure UR 309: Power fail detection Power failure to fan detected 24v dc supply AR 310: Power monitor comm. No data received from the power meter IC in the last 10 seconds

or the power monitor failed to register with the EGC

microcontroller within 10 seconds of power up AR 311: EGC comm. failure Communication timeout or communication failure AR 421: Eng bu exc temp diff h’ex Engine burner excessive temperature difference across the

heat exchanger AR 422: BCU Eng bu inconsistent Transmitted state of the engine burner BCU isn’t consistent AR 423: BCU Supp bu inconsistent Transmitted state of the supplementary burner BCU isn’t consistent AR 424: Rep. loss of flame Eng bu Repeated loss of flame engine burner UR 425: Rep. loss of flame Supp bu repeated loss of flame supplementary burner UR

11.1 List of Error Codes (cont)

This is a shortened list of the error codes, which will be displayed on the Programmer or on the room unit. If more than one error is active, the one with the higher priority or the one that appeared first will be displayed.

Error codes 157,274,261,262 and 300 can be reset by the user by pressing the user reset button for 2 seconds, turning the dial to alter the flashing NO to a YES and then pressing the OK button. After a few seconds the error should clear enabling a restart of the appliance. Errors 261 and 262 may indicate a problem with the gas supply.

Errors 157,164,274 and 300 may indicate a problem with the central heating water fill or pump. If the problem persists contact the installer with the error code.

Error 158 indicates a possible blockage in the condense drain.

Error codes 10 through to 99 (except 97) are linked to installation and commissioning of your system and as such you should contact your installer to complete commissioning.

Error codes that are shown as automatic reset will disappear once the fault has cleared. The appliance will restart if there is a demand except in the case of errors 263 and 264 when the appliance must be switched off and on again to enable a restart.

All other error codes indicate a fault condition, which will require the attention of a service engineer.

UR = User Reset, AR = Automatic Reset, ARP = Automatic Reset after Power Down

NOTE: An automatic reset is only done if the fault condition has cleared.

12.0 Care of the Boiler

12.1 Cleaning the Outer case

The painted panels should be wiped with a damp cloth and then dried completely. DO NOT USE ABRASIVE

CLEANING AGENTS.

12.2 Maintenance

The appliance MUST be serviced annually by a Baxi authorised engineer.

12.3 Condensate drain

The condensate drain, located at the bottom of the appliance, must not be modified or blocked. Blockage will cause the appliance to shut down.

12.4 Protection & Precaution

1. The appliance incorporates frost protection for itself only, fitted as standard. If the system has a Programmable Room Unit mounted in a cradle on a wall then the central heating system will also be protected.

2. In cold weather, if you are going away, turn the appliance off at the time switch ONLY. Leave the mains supply switched ON.

3. If a system frost thermostat has been fitted (your installer will be able to advise you), then to operate correctly and protect your system, the gas and electricity must be left on and the appliance set in the central heating mode.

4. The boiler incorporates an integral pump protection feature which continually monitors the time since the pump last operated. To prevent seizure, the pump will operate for approximately 1 minute if it has not run in the last 24 hours.

12.5 Fault Indication

1. If a fault occurs on the boiler an error code may be shown on the facia display.

12.6 In an Emergency

If a gas leak occurs or is suspected, the boiler can be isolated at the inlet valves as follows;

1. Using a suitable open ended spanner, turn the square nut on the gas tap through 90° (1/4turn) in a clockwise direction to isolate the gas supply at the boiler.

2. Call your Installer or Service Engineer as soon as possible.

Gas Service Cock

View from under appliance

Off Position

On Position

Test Nipple

If you smell gas

Do not operate light switches Do not operate any electrical equipment Do not use a telephone in the hazardous area Extinguish any naked flame and do not smoke Open windows and doors in the hazardous area Turn off the gas supply at the meter Warn any other occupants and vacate the premises Telephone the National Gas Emergency Service on:0800 111 999

Faulty boiler

If it is known or suspected that a fault exists on the boiler, it must not be used until the fault has been corrected by a competent person.

Warning !

13.0 Legislation

13.1 Installation, Commissioning, Service & Repair

1. This appliance must be installed in accordance with the manufacturer’s instructions and the regulations in force. Read the instructions fully before installing or using the appliance.

2. In GB, this must be carried out by a competent person as stated in the Gas Safety (Installation & Use) Regulations.

3. Definition of competence: A person who works for a Gas Safe registered company and holding current certificates in the relevant ACS modules, is deemed competent.

4. IN IE (Eire), this must be carried out by a competent person as stated in I.S. 813 “Domestic Gas Installations”.

All Gas Safe registered engineers carry an ID card with their licence number and a photograph. You can check your engineer is registered by telephoning 0800 408 5500 or online at www.GasSafeRegister.co.uk

The boiler meets the requirements of Statutory Instrument “The Boiler (Efficiency) Regulations 1993 No 3083” and is deemed to meet the requirements of Directive 92/42/EEC on the energy efficiency requirements for new hot water boilers fired with liquid or gaseous fuels:-

Type test for purpose of Regulation 5 certified by: Notified Body 0087.

Product/Production certified by: Notified Bodies 0086.

For GB/IE only.

13.2 Benchmark Commissioning Checklist

1. Please ensure that the installer has fully completed the Benchmark Checklist on the inside back pages of the installation instructions supplied with the product and that you have signed it to say that you have received a full and clear explanation of its operation. The installer is legally required to complete a commissioning checklist as a means of complying with the appropriate Building Regulations (England and Wales).

2. All installations must be notified to Local Area Building Control either directly or through a Competent Persons Scheme. A Building Regulations Compliance Certificate will then be issued to the customer who should, on receipt, write the Notification Number on the Benchmark Checklist.

3. This product should be serviced regularly to optimise its safety, efficiency and performance. The service engineer should complete the relevant Service Record on the Benchmark Checklist after each service.

4. The Benchmark Checklist may be required in the event of any warranty work and as supporting documentation relating to home improvements in the optional documents section of the Home Information Pack.

13.3 Contact the Electricity Provider

1. Both the District Network Operator (DNO) and your Electricity Provider need to be informed that an electricity generator has been installed at your address. Usually the installer will inform the DNO. As the householder you should notify the Electricity Provider and arrange for a feed-in tariff to compensate you for the unused electricity that your appliance has generated and fed back into the grid. If your electricity meter does not already register reverse flows then the provider will have to arrange for new metering.

14.0 Notes

BAXI

A Trading Division of Baxi Heating UK Ltd (3879156) A division of Baxi Group

Brooks House, Coventry Road, Warwick. CV34 4LL After Sales Service 0844 871 1525 Technical Enquiries 0844 871 1555 Website www.baxi.co.uk e&oe

UK Comp No5133684 - Iss 02 - 2/10

Information Label

All descriptions and illustrations provided in this leaflet have been carefully

prepared but we reserve the right to make changes and improvements in

our products which may affect the accuracy of the information contained in

this leaflet. All goods are sold subject to our standard Conditions of Sale

which are available on request.

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Baxi Potterton ECOGEN 24-1.0 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual