© Baxi Heating UK Ltd 2007
User’s Guide and
Important Warranty Information
System HE
Range
Please keep these instructions in a safe place.
If you move house, please hand them over to the next occupier.
2
© Baxi Heating UK Ltd 2007
Natural Gas
Main System 18 HE
G.C.No41 467 01
Main System 24 HE
G.C.No41 467 02
Main System 28 HE
G.C.No41 467 03
© Baxi Heating UK Ltd 2007 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, Pentagon House,
Sir Frank Whittle Road, Derby, DE21 4XA.
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.
Baxi Heating UK Ltd is a
BS-EN ISO 9001 Accredited Company
The code of practice for the installation,
commissioning & servicing of central
heating systems.
“Main” supports
1.0 Quick Reference Guide 3
2.0 Troubleshooting 4
3.0 Fault Indication 6
4.0 Repressurising System 7
5.0 Clearances 8
6.0 Care of the Boiler 9
7.0 Legislation 10
8.0 Emergency 11
9.0 Warranty & Service 12
Section Page
Contents
Boiler Controls - see opposite page
for Operating Quick Reference Guide
1.0 Quick Reference Guide
3
© Baxi Heating UK Ltd 2007
Reset
2
1
0
4
3
bar
ON/OFF/Reset
Selector Switch
Indicator
Neons
Central Heating
Temperature Control
System Pressure Gauge
OFF Position
The boiler will not operate.
Central Heating Temperature Control
Turn the knob clockwise to increase or anticlockwise to decrease the
temperature. Range 25 - 80° C.
Power On Indicator - The indicator will illuminate when there is power to the
boiler.
Burner On Indicator - The indicator will illuminate when the burner has fired
and is heating your central heating or domestic hot water.
Boiler On - The indicator will illuminate when there is a demand for heat to
the boiler.
Central Heating System Pressure - The normal operating water pressure is
between 1 and 2.0 bar. If the pressure exceeds 3 bar the safety pressure valve
will operate and a fault is indicated. Contact your Installer.
Reset
Reset
Central Heating & Hot Water
Both Heating & Hot Water will operate.
Reset
Hold for approx 5 seconds and release.
Indicator
Neons
Reset
30° 40° 50° 60° 70° 80°
2
1
3
4
0
bar
30° 40° 50° 60° 70° 80°
2.0 Troubleshooting
4
© Baxi Heating UK Ltd 2007
START
Make sure the gas supply is
turned ON and check if other
gas appliances are operating
(e.g. fire, cooker).
If no gas, consult your
supplier.
Is the ON/OFF/Reset
Select Switch in the
( ) position and
the Power ON indicator
lit ?
Is the ( ) light on and the
( ) on ?
Check electricity to the
boiler is switched on.
Reset
Power On
Indicator
Boiler On
Indicator
Burner On
Indicator
Boiler operating satisfactorily.
2
1
0
4
3
bar
Is the Central Heating System
Pressure needle in the GREEN
section, between 1 and 2.5 bar ?
If the reading falls below 1 bar
repressurise the system as
described in section 4.1.
Is the ( ) indicator neon on ?
Boiler not working
NO
NO
YES
YES
YES
NO
Turn the ON/OFF/Reset
Selector Switch to Reset.
Reset
NO
YES
YES
NO
If boiler does not
Reset
Flame Failure
Neon
30° 40° 50° 60° 70° 80°
30° 40° 50° 60° 70° 80°
30° 40° 50° 60° 70° 80°
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