Baxi ECOGEN 24/1.0 Operation instructions

© Baxi Heating UK Ltd 2011
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

2© Baxi Heating UK Ltd 2011
Natural Gas
Baxi Ecogen 24
G.C.No41 075 60
© Baxi Heating UK Ltd 2011 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,
Brooks House, Coventry Road, Warwick. CV34 4LL
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
Anti-Legionella Function
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 DHW set point has been reduced from 65° C for safety reasons, the users
must be aware that the temperature around this time will be much hotter than usual.
The time of the function may be altered or the action disabled see section 7.6.
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 13.3.
Propane
Baxi Ecogen 24/1.0 LPG
G.C.No41 075 64

1.0 Quick Reference Guide
3
© Baxi Heating UK Ltd 2011
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 Overridden
Time Switch Function Active
Wireless Communication Established
i-THINK Controller Configured as a Room Sensor
Error Message
Standby - Appliance ON/OFF (OFF = Frost Protection)
Outdoor Sensor Connected
System / Appliance Attention Required
Maintenance / Special Mode
Change Battery (only if wireless control fitted)
Text 3
Text 1
Text 2
Display showing all available segments
Display Descriptions
i-THINK Controller
04. November 2008 08:50
Tuesday
Menu Button
Easy Menu
Button Selector Button (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
turn the Selector Button to scroll through, confirm your
selection by pressing the Selector 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 6 - 9, 11 - 12 & 15 - 22
Standby

2.0 Introduction
4© Baxi Heating UK Ltd 2011
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. An increase
in the noise level during connection of the generator to the grid is
normal and should be expected.
2. The use of an i-THINK Controller incorporating a room sensor (as
opposed 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. If the electricity generated is not consumed directly by the user, it is
fed back into the grid. Arrangements can be made with the electricity
provider to compensate the householder by way of a feed-in 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 (see Section 13.3).
6. Operation and control is similar to a domestic boiler and is fully
automatic.
7. All interactions with the appliance are through the removable
i-THINK Controller mounted either 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 Distribution 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.
i-THINK Controller
Wall Cradle (Accessory)
i-THINK Controller

3.0 The Programmers
5
© Baxi Heating UK Ltd 2011
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 i-THINK Controller. Section 5.0 and 6.0 detail how the timings
and settings for your heating and hot water can be changed.
3.2 i-THINK Controller
1. The i-THINK Controller displays important information about
how the appliance is working and allows you to alter settings to
configure the operation to your requirements.
2. This is normally located at the base of the appliance on the front
cover. It can be removed from the appliance to act as a
programmable room sensor 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 7.4 - choose ‘On’ in both cases.
4. Refer to the instructions for the existing programmers for setting
the timed periods and the room temperatures. The i-THINK
Controller will display the boiler flow temperature and any errors
see section 9 onwards.
3.3 Installing the i-THINK Controller as a
Programmable Room Sensor
1. The Wall Cradle accessory is available in two formats.
a) Hard Wired i.e fixed to a wall, the screen illuminates upon
operation.
b) Wireless Cradle, mounted and portable, with no permanent
screen illumination.
2. The operation of both wireless and hard wired units are identical.
3. The Wireless Cradle 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 symbol appears on the display screen, replace
the batteries.
3.4 5 LED Receiver
1. The 5 LED Receiver is fitted when the i-THINK Controller is
removed and gives basic information about the state of the
appliance from left to right:-
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 Receiver
Wall Cradle (Accessory)
i-THINK Controller
Reset Button

4.0 Setting the Time
6© Baxi Heating UK Ltd 2011
4.1 Time Setting
The time, day, date and year can be adjusted using the i-THINK
Controller as shown below.
04. November 2008 08:50
Tuesday
Menu Button
Display Screen
Set time and date
---------------------------------------------------
Information
Operator section
Information
Set time and date
Hours / minutes 09:07
Set time and date
04. November 2008 08:50
Tuesday
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 Selector Button
clockwise to highlight ‘Set Time
and Date’.
Press the Selector Button
to select .
Press the Selector Button and
the hour number flashes. Turn
Button to the required hour.
Hours / minutes 11:07
Set time and date
Press the Selector Button and
the minute number flashes.
Turn Button to the required
minute. Press the Selector
Button.
Hours / minutes 11:30
Set time and date
Day / month 05:06
Set time and date
Turn the Selector Button
clockwise until Day / month is
shown. Press the Selector
Button and the month number
flashes. Turn Button to the
required month. Day / month 03:06
Set time and date
Press the Selector Button and
the day number flashes. Turn
Button to the required day.
Press the Selector Button.
Year 2008
Set time and date
Turn the Selector Button
clockwise until Year is shown.
Press the Selector Button and
the year number flashes. Turn
Button to the required year.
Year 2009
Set time and date
Press the Selector Button.
Time setting is now complete.
03. June 2009 11:30
Wednesday
Press the MENU button
twice to return to normal
display screen.
Selector Button
STEP 1
STEP 3
STEP 2
STEP 3 STEP 4
STEP 5 STEP 6
STEP 7 STEP 8
STEP 9 STEP 10
STEP 11
i-THINK Controller
Easy Menu Button

5.0 Setting the Central Heating Times
7
© Baxi Heating UK Ltd 2011
Menu Button
Display Screen
04. November 2008 08:50
Tuesday 5.1 Programming the Central Heating Times
The i-THINK Controller 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 i-THINK Controller’s
each room/floor must be programmed using the respective
i-THINK Controller. Choose the relevant heating circuit at STEP 3.
When programming individual days, the opportunity to copy one
day to another is offered (CH1 - Screen 515, CH2 - Screen 535).
04. November 2008 08:50
Tuesday Set time and date
---------------------------------------------------
Information
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.
Time hot water
Operator section
Time central heating CH1
Mon - Sun
Select days
Time central heating CH1
Turn the Selector Button
clockwise to highlight ‘Time
central heating CH1’.
Press the Selector Button
to select .
Press the Selector Button and
the day / days regime flashes.
Turn Button to the required
day or days Mon-Sun, Mon-
Fri, Sat-Sun
Mon, Tue, Wed,
Thu, Fri, Sat, Sun
Press Button to
select.
Mon - Sun
Select days
Time cental heating CH1
Turn the Selector Button one
click clockwise.
Select default timings?
Mon - Sun
Time central heating CH1
Set to Time setting 1
Mon - Sun
Time central heating CH1
Press the Selector Button and
the time program regime
flashes. Turn Button to the
‘Time setting 1’. Press Button to
select and the screen goes back
to STEP 6. 06:00
Mon - Sun: 1st Time ON
Time central heating CH1
Turn the Selector Button one
click clockwise.
STEP 1 STEP 2
STEP 3 STEP 4
STEP 5 STEP 6
STEP 7 STEP 8
Selector Button
i-THINK Controller
Easy Menu Button

5.0 Setting the Central Heating Times
8© Baxi Heating UK Ltd 2011
5.1 Programming the Central Heating Times (cont)
11:00
Mon - Sun: 2nd Time ON
Time central heating CH1
Press the Selector Button and
the ‘2nd Time ON’ time will
flash. Turn the Selector
Button to the required time.
Press Button to select.
11:50
Mon - Sun: 2nd Time ON
Time central heating CH1
Turn the Selector Button one
click clockwise.
13:00
Mon - Sun: 2nd Time OFF
Time central heating CH1
15:00
Mon - Sun: 3rd Time ON
Time central heating CH1
Turn the Selector Button one
click clockwise.
Turn the Selector Button one
click clockwise and then press
the Selector Button. The ‘2nd
Time OFF’ time will flash. Turn
the Button to the required
time. Press the Button to select.
17:00
Mon - Sun: 3rd Time ON
Time central heating CH1
23:00
Mon - Sun: 3rd Time OFF
Time central heating CH1
Turn the Selector Button one
click clockwise and then press
the Selector Button. The ‘3rd
Time OFF’ time will flash. Turn
the Button to the required
time. Press the Button to
select.
Press the Selector Button and
the ‘3rd Time ON’ time will
flash. Turn the Selector Button
to the required time. Press
Button to select.
STEP 11 STEP 12
STEP 13 STEP 14
STEP 15 STEP 16
Menu Button
04. November 2008 08:50
Tuesday
Display Screen
08:00
Mon - Sun: 1st Time ON
Time central heating CH1
Press the Selector Button and
the ‘1st Time ON’ time will
flash. Turn the Selector Button
to the required time. Press
Button to select.
10:00
Mon - Sun: 1st Time OFF
Time central heating CH1
Turn the Selector Button one
click clockwise and then press
the Selector Button. The ‘1st
Time OFF’ time will flash. Turn
the Button to the required
time. Press the Button 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 turning anticlockwise.
Selector Button
i-THINK Controller
Easy Menu Button
03. June 2009 11:30
Wednesday
Press the MENU button
twice to return to normal
display screen.
STEP 17

6.0 Setting the DHW Times
9
© Baxi Heating UK Ltd 2011
Menu Button
Display Screen
04. November 2008 08:50
Tuesday 6.1 Programming the Domestic Hot Water Times
The i-THINK Controller 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.
When programming individual days, the opportunity to copy one
day to another is offered (screen 575).
04. November 2008 08:50
Tuesday Set time and date
---------------------------------------------------
Information
1. The basic display is shown.
If the basic display is not
showing, press the MENU
button.
Press the MENU button.
Holidays heating CH1
Time central heating CH1
Time hot water
Mon - Sun
Select days
Time hot water
Turn the Selector Button
clockwise to highlight ‘Time hot
water’.
Press the Selector Button
to select .
Press the Selector Button and
the day / days regime flashes.
Turn Button to the required
day or days Mon-Sun, Mon-
Fri, Sat-Sun,
Mon, Tue, Wed,
Thu, Fri, Sat, Sun
Press Button to
select.
Mon - Sun
Select days
Time hot water
Turn the Selector Button one
click clockwise.
Select default timings?
Mon - Sun
Time hot water
Set to Time setting 1
Mon - Sun
Time hot water
Press the Selector Button and
the time program regime
flashes. Turn Button to the
‘Time setting 1’. Press Button to
select and the screen goes back
to STEP 6. 06:00
Mon - Sun: 1st Time ON
Time hot water
Turn the Selector Button one
click clockwise.
STEP 1 STEP 2
STEP 3 STEP 4
STEP 5 STEP 6
STEP 7 STEP 8
Selector Button
i-THINK Controller
Easy Menu Button

6.0 Setting the DHW Times
10 © Baxi Heating UK Ltd 2011
6.1 Programming the Domestic Hot Water Times (cont)
11:00
Mon - Sun: 2nd Time ON
Time hot water
Press the Selector Button and
the ‘2nd Time ON’ time will
flash. Turn the Selector Button
to the required time. Press
Button to select.
11:30
Mon - Sun: 2nd Time ON
Time hot water
Turn the Selector Button one
click clockwise.
13:30
Mon - Sun: 2nd Time OFF
Time hot water
15:00
Mon - Sun: 3rd Time ON
Time hot water
Turn the Selector Button one
click clockwise.
Turn the Selector Button one
click clockwise and then press
the Selector Button. The ‘2nd
Time OFF’ time will flash. Turn
the Button to the required
time. Press the Button to select.
17:00
Mon - Sun: 3rd Time ON
Time hot water
19:30
Mon - Sun: 3rd Time OFF
Time hot water
Turn the Selector Button one
click clockwise and then press
the Selector Button. The ‘3rd
Time OFF’ time will flash. Turn
the Button to the required
time. Press the Button to
select.
Press the Selector Button and
the ‘3rd Time ON’ time will
flash. Turn the Selector Button
to the required time. Press
Button to select.
STEP 11 STEP 12
STEP 13 STEP 14
STEP 15 STEP 16
Menu Button
04. November 2008 08:50
Tuesday
Display Screen
06:30
Mon - Sun: 1st Time ON
Time hot water
Press the Selector Button and
the ‘1st Time ON’ time will
flash. Turn the Selector
Button to the required time.
Press Button to select.
08:30
Mon - Sun: 1st Time OFF
Time hot water
Turn the Selector Button one
click clockwise and then press
the Selector Button. The ‘1st
Time OFF’ time will flash. Turn
the Button to the required
time. Press the Button 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 turning anticlockwise.
Selector Button
i-THINK Controller
Easy Menu Button
03. June 2009 11:30
Wednesday
Press the MENU button
twice to return to normal
display screen.
STEP 17