Baxi Combi 80 HE Plus User manual

© Baxi Heating UK Limited 2005
Please keep these instructions in a safe place.
If you move house, please hand them over
to the next occupier.
Baxi Combi 133 HE Plus
Baxi Combi 100 HE Plus
Baxi Combi 80 HE Plus
Gas Fired Wall Mounted Condensing
Combination Boiler
User’s Operating Instructions &
Important Warranty Information

2© Baxi Heating UK Limited 2005
Baxi is one of the leading manufacturers of domestic
heating products in the UK.
Our first priority is to give a high quality service to our
customers. Quality is designed into every Baxi product -
products which fulfil the demands and needs of customers,
offering choice, efficiency and reliability.
To keep ahead of changing trends, we have made a
commitment to develop new ideas using the
latest technology - with the aim of continuing to
make the products that customers want to buy.
Everyone who works at Baxi has a commitment to quality
because we know that satisfied customers mean continued
success.
We hope you get a satisfactory service from Baxi. If not,
please let us know.
Natural Gas
Baxi Combi 133 HE Plus
G.C.No47 075 14
Baxi Combi 100 HE Plus
G.C.No47 075 15
Baxi Combi 80 HE Plus
G.C.No47 075 16
Baxi Heating UK Limited is a
BS-EN ISO 9001 Accredited Company
Baxi supports
The code of practice for the
installation, commissioning &
s
ervicing of central heating systems
This product has an energy rating (A) on a scale of A to G.
For more information see www.boilers.org.uk. This is a certification mark.
1.0 Quick Reference Guide 3
2.0 Troubleshooting 4
3.0 Repressurising 6
4.0 Clearances 7
5.0 Care of the Boiler 8
6.0 Legislation 9
7.0 Emergency 10
8.0 Warranty & Service 12
Section Page
Contents
© Baxi Heating UK Limited 2005 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 Limited, 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.

Reset Button
If the Red Flame Failure Light ( ) is ON or
flashing, press the Reset button until the red light
goes OFF. If this occurs frequently a fault is indicated,
you should contact your installer.
1.0 Quick Reference Guide
3
© Baxi Heating UK Limited 2005
Low
High
ON
Reset
Low
High
Domestic Hot Water Temperature Control
Turn the Domestic Hot Water Temperature Control
Knob clockwise to increase or anticlockwise to
decrease the temperature. Range 45 - 55° C.
Central Heating Temperature Control
Turn the Central Heating Temperature Control Knob
clockwise to increase or anticlockwise to decrease
the boiler flow temperature.
Low
High
ON
Reset
Low
High
ON
Low
High
Flame Failure
(Red Light)
Burner On
(Green Light)
Mains On
(Green Light)
Central Heating
Control Knob
(No OFF Position)
Reset Button
If Flame Failure Light is ON press the Reset Button. If Flame Failure occurs
frequently consult your Installer.
This indicates that the Burner has fired up and is heating your system.
This indicates that there is electricity to the Boiler.
Turn the Central Heating Control Knob clockwise to increase or anticlockwise
to decrease the boiler flow temperature.
The Reset Button should extinguish the Flame Failure Light and allow
normal operation to commence.
Low
High
Domestic Hot Water
Control Knob
(No OFF Position)
Turn the Domestic Hot Water Control Knob clockwise to increase or
anticlockwise to decrease the temperature.
Domestic Hot Water
(Green Light) This indicates that the Burner has fired up and heating your water.
Key to Controls

2.0 Troubleshooting
4© Baxi Heating UK Limited 2005
Make sure the gas
supply is turned ON
and check if other
gas appliances are
operating (e.g. fire,
cooker).
START
Is there electricity to the
boiler ? (Green Mains ON
Light lit).
Low
Hig h
ON
Rese t
Low
Hig h
Check electrical supply to
boiler is switched on.
Mains ON Light
(Green)
12
3
0
requires
repressurising
Is the Central Heating
System Pressure between
1 and 2.5 bar ?
If the reading falls below 1 bar
repressurise the system as
described in section 3.0.
Is the Red Flame Failure
Light illuminated or flashing ?
Low
Hig h
ON
Reset
Low
Hig h
Flame Failure
(Red)
Low
High
ON
Reset
Low
High
Press the Reset Button
until the red light goes off.
Reset Button
Boiler not working
CONTACT YOUR
INSTALLER OR
SERVICE
ENGINEER.
YES YES
NO
Light ON
Light FLASHING
Light FLASHING
NO
YES NO
NO
Pressure
Gauge
Boiler indicators
showing low
pressure
YES
If the light
does not go
out or keeps
coming on
If no gas, consult
your supplier.
NO
Low
Hig h
ON
Reset
Low
Hig h
Is the Green Burner ON
Light illuminated ?
Burner ON Light
(Green)
Boiler operating
satisfactorily.
YES

2.0 Troubleshooting
5
© Baxi Heating UK Limited 2005
Is the Room Thermostat (if
fitted) set high enough ?
15
10
5
20
25
15
10
5
20
25
Turn Room Thermostat to
maximum setting (typical
example shown)
12
1
2
3
4
5
6
7
8
9
10
11
Is the Timer ON and
calling for heat ?
CH ON CH OFF
Ensure timer is set for Central
Heating ON (see any instructions
supplied with timer)
YES YES
NO
1
2
3
4
5
PM
7
8
9
10
11
12
1
2
3
4
5
AM
7
8
9
10
11
12
GRASSLIN
0
NO
Typical
examples of
external timers
Optional
integral timer
If you don’t know what you need to do
to get the boiler to light, or need help
with the system and controls, contact
your installer as soon as possible

3.0 Repressurising System
6© Baxi Heating UK Limited 2005
3.1 Central Heating System Pressure
1. The normal operating water pressure is in the green area
between 1 and 2.5 bar (Fig. 1). If the pressure exceeds 3 bar
the safety pressure valve will operate and a fault is indicated.
Contact your installer.
2. It may be necessary to repressurise the system occasionally
(Fig. 2). A filling device (the ‘filling loop’) will be fitted on the
system. This may be on the boiler itself, or on pipework near
to the boiler.
3. If you are unsure of its position, or cannot identify it, consult
the installer who fitted the boiler.
4. The filling loop consists of two taps and a separate metal
braided hose pipe (Fig. 3).
5. Only when repressurising should the hose be connected
between the two taps. No tools are necessary for this, but
ensure that the wing nuts on the hose pipe ends are tightened
onto the taps.
6. Fully open one of the taps first, and then while watching the
pressure gauge, carefully open the second tap.
7. When the needle on the gauge is into the green zone and
indicating 1 (Fig. 1) or more turn both taps off.
8. Disconnect the hose from the taps (a small amount of water
may be present) and remove it. Keep the hose in a safe place
for future use.
12
3
0
requires
repressurising
12
3
0
normal pressure
Taps
Hose
Copper Pipe
Copper Pipe
Fig. 1
Fig. 2
Fig. 3 Typical Filling Loop
Wing Nut

7
© Baxi Heating UK Limited 2005
4.0 Clearances
200mm
850mm
490mm
200mm
5mm Min
5mm Min
5mm
500mm
For Servicing
Purposes
Fig. 4
Fig. 5 In Operation
3°
(1 in 20)
320mm
4.1 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
(Figs. 4 & 5):-
Top - 200mm
Bottom - 200mm
Left side - 5mm
Right Side - 5mm
Front - 5mm (In Operation)
- 500mm (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 trees or
bushes.
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

8© Baxi Heating UK Limited 2005
5.0 Care of the Boiler
5.1 Cleaning the Outercase
1. The painted panels should be wiped with a damp cloth
and then dried completely. DO NOT USE ABRASIVE
CLEANING AGENTS.
5.2 Protection & Precautions
1. The boiler incorporates an integral frost protection
feature that will operate in both modes. If the boiler
temperature falls below 4 °C, the boiler will fire until a
temperature of 15 °C is reached.
2. 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.
3. 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.

9
© Baxi Heating UK Limited 2005
6.0 Legislation
6.1 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: Aperson who works for a
CORGI 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 CORGI registered installers carry a CORGI
identification card (see Fig. 6) and have a registration
number. You can check your installer is registered by
telephoning 0870 4012300 or writing to:-
1 Elmwood,
Chineham Business Park,
Crockford Lane,
Basingstoke. RG24 8WG
or check online at www.corgi-gas-safety.com
The boiler meets the requirements of Statutory Instrument
“ The Boiler (Efficiency) Regulations 1993 No3083” 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 0086.
Product/Production certified by:
Notified Body 0086.
Ref: 86-BL-647
For GB/IE only.
6.2 Benchmark Commissioning Check List
1. Please ensure that your installer hands you the boiler
Installation & Service Instructions with the “Benchmark”
Commissioning Checklist sections completed. The details
in the Checklist will be required in the event of any
warranty work. Keep the instructions in a safe place and
ensure that the Service Interval Record at the back is
completed at each service visit.
Registered
Gas Installer
CARD SERIAL NO.
999999999
NAME:
A.N.Installer
COMPANY:
Newtown Heating
EXPIRES:
31 DECEMBER 2010
PHOTOGRAPH
To confirm validity of this card please contact
CORGI on
0870 401 2300
www.corgi-group.com
CORGI
00000
Fig. 6 CORGI Registration Card

10 © Baxi Heating UK Limited 2005
7.0 Emergency
If you smell gas
Turn off the gas supply at the meter and call your gas
supplier immediately. It is possible to isolate the boiler and
at the isolating valve (Fig. 7).
Transco operate a 24 hour emergency service and the
telephone number will be listed in your telephone
directory.
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 !
Gas Cock Heating Flow
and Return
Fig. 7
In an Emergency
If a water or gas leak occurs or is suspected, the boiler can
be isolated at the taps under the boiler as follows;
1. Turn off the electrical supply to the boiler.
2. Using a suitable flat bladed screwdriver turn the tap on
the gas cock 90° clockwise to isolate the gas supply at the
boiler (Fig. 7).
3. The heating system and mains water isolating valves are
positioned under the boiler and can be closed by turning
their taps 90° clockwise (Fig. 7).
4. Call your Installer or Service Engineer as soon as
possible.
Mains Water
Inlet
Tap