Technical data | Baxi Potterton BBU 15 HE Boiler User Manual

Installation & Servicing Instructions
Baxi Bermuda BBU 15 HE
Condensing Back Boiler Unit
These Instructions must be read in conjunction with those for
the separate Valor Dimension electric firefront.
They include the Benchmark Commissioning Checklist
and should be left with the user for safe keeping.
© Baxi Heating UK Ltd 2009
Building Regulations and the Benchmark
Commissioning Checklist
Natural Gas
Baxi Bermuda BBU 15 HE
G.C.No. 44 075 09
For use with the following electric firefronts:
Valor Dimension Classica Brass, Pewter or Black BBU Firefront
Valor Dimension Dream Gold, Chrome or Black BBU Firefront
Valor Dimension Innova BBU Firefront
Valor Dimension Regalia BBU Firefront
Valor Dimension Nano Chrome BBU Firefront
Building Regulations (England & Wales) require notification of
the installation of a heating appliance to the relevant Local
Authority Building Control Department. From 1 April 2005 this
can be achieved via a Competent Persons Self Certification
Scheme as an option to notifying the Local Authority directly.
Similar arrangements will follow for Scotland and will apply in
Northern Ireland from 1 January 2006.
The Health & Safety Executive operates the ‘Gas Safe Register’,
a self-certification scheme for gas heating appliances.
These arrangements represent a change from the situation
whereby compliance with Building Regulations was accepted as
being demonstrated by completion of the Benchmark Logbook
(which was then left on site with the customer).
Valor Dimension Lyrica BBU Firefront
With the introduction of Self Certification Schemes, the
Benchmark Logbook is being withdrawn. However, a similar
document in the form of a commissioning checklist and service
interval record is incorporated at the back of these instructions.
The Benchmark Scheme
Benchmark places responsibilities on both manufacturers and installers. The
purpose is to ensure that customers are provided with the correct equipment for
their needs, that it is installed, commissioned and serviced in accordance with the
manufacturer’s instructions by competent persons and that it meets the
requirements of the appropriate Building Regulations. The Benchmark Checklist
can be used to demonstrate compliance with Building Regulations and should be
provided to the customer for future reference.
Installers are required to carry out installation, commissioning and servicing work
in accordance with the Benchmark Code of Practice which is available from the
Heating and Hotwater Industry Council who manage and promote the Scheme.
Visit www.centralheating.co.uk for more information.
© Baxi Heating UK Ltd 2009 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.
This company is a member of the Benchmark initiative and fully
supports the aims of the programme. Its aim is to improve the
standards of installation and commissioning of central heating
systems in the UK and to encourage the regular servicing of all
central heating systems to ensure safety and efficiency.
Building Regulations require that installations should comply
with manufacturer's instructions. It is therefore important that
the commissioning checklist is completed by the installer. The
relevant section of Building Regulations only relates to
dwellings. Therefore the checklist only applies if the appliance is
being installed in a dwelling or some related structure.
The flowchart opposite gives guidance for installers on the
process necessary to ensure compliance with Building
Regulations.
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.
0086
ISO 9001
FM 00866
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.
2
© Baxi Heating UK Ltd 2009
Installer Notification Guidelines
Choose Building
Regulations Notification
Route
Competent Person's
Self Certification Scheme
Building Control
Install and Commission this
appliance to manufacturer's
instructions
Contact your relevant Local
Authority Building Control
(LABC) who will arrange
an inspection or contact
a government approved
inspector
Complete the
Benchmark Checklist
If you notify via the ‘Gas Safe
Register’, the register will issue
the Building Regulations
certificate on members’ behalf
Install and Commission this
appliance to manufacturer's
instructions
Scheme Members only
Call ‘Gas Safe Register’ on:
0800 408 5577
or log onto:
www.GasSafeRegister.co.uk
within 10 days
Complete the
Benchmark Checklist
You must ensure that the
certificate number issued by
the ‘Gas Safe Register’ is written
onto the Benchmark Checklist
‘Gas Safe Register’ will issue a
Building Regulations Compliance
Certificate to the property owner
and inform the relevant LABC
© Baxi Heating UK Ltd 2009
LABC will record the data
and will issue a
certificate of compliance
3
Legislation
IMPORTANT - Installation, Commissioning, Service & Repair
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.
In GB, this must be carried out by a competent person as stated in the Gas Safety
(Installation & Use) Regulations.
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.
In IE, this must be carried out by a competent person as stated in I.S. 813 “Domestic
Gas Installations”.
The addition of anything 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.
Warning - Check the information on the data plate is compatible with local supply
conditions.
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.
This company declare that no substances harmful to health
are contained in the appliance or used during appliance
manufacture.
The appliance is suitable only for installation in GB and IE and
should be installed in accordance with the rules in force, and
only used in a suitably ventilated location.
In GB, the installation must be carried out by a Gas Safe
Registered Installer. It must be carried out in accordance with
the relevant requirements of the:
• Gas Safety (Installation & Use) Regulations.
• The appropriate Building Regulations either The Building
Regulations, The Building Regulations (Scotland), Building
Regulations (Northern Ireland).
• The Water Fittings Regulations or Water Byelaws in
Scotland.
• The Current I.E.E. Wiring Regulations.
Where no specific instructions are given, reference should be
made to the relevant British Standard Code of Practice.
In IE, the installation must be carried out by a competent
Person and installed in accordance with the current edition of
I.S. 813 ‘Domestic Gas Installations’, the current Building
Regulations and reference should be made to the current ETCI
rules for electrical installation.
All systems must be thoroughly flushed and treated with
inhibitor (see section 6.2).
Codes of Practice, most recent version should be used
In GB the following Codes of Practice apply:
Standard
Scope
BS 6891
Gas Installation.
BS 5546
Installation of hot water supplies for
domestic purposes.
BS 5449
Forced circulation hot water systems.
BS 6798
Installation of gas fired hot water boilers.
BS 5440 Part 1
Chimneys.
BS 5440 Part 2
Ventilation.
BS 7074
Expansion vessels and ancillary equipment for
sealed water systems.
BS 7593
Treatment of water in domestic hot water central
heating systems.
Also the following standard includes relevant information about
builders openings:
BS 5871 Part 1
Installation of gas fires, convector heaters,
fire/back boilers and heating stoves.
In IE the following Codes of Practice apply:
Standard
Scope
I.S. 813
Domestic Gas Installations.
The following BS standards give valuable additional information;
BS 5546
Installation of hot water supplies for
domestic purposes.
BS 5449
Forced circulation hot water systems.
4
© Baxi Heating UK Ltd 2009
Safe Manual Handling
General
The following advice should be adhered to, from when first handling the boiler to the final stages of installation, and also during maintenance.
Most injuries as a result of inappropriate handling and lifting are to the back, but all other parts of the body are vulnerable, particularly shoulders, arms and hands.
Health & Safety is the responsibility of EVERYONE.
There is no ‘safe’ limit for one man - each person has different capabilities. The boiler should be handled and lifted by TWO PEOPLE.
Do not handle or lift unless you feel physically able.
Wear appropriate Personal Protection Equipment e.g. protective gloves, safety footwear etc.
Preparation
Co-ordinate movements - know where, and when, you are both going.
Minimise the number of times needed to move the boiler - plan ahead.
Always ensure when handling or lifting the route is clear and unobstructed. If possible avoid steps, wet or slippery surfaces, unlit areas etc. and take special care
on ladders/into lofts.
Technique
When handling or lifting always use safe techniques - keep your back straight, bend your knees. Don’t twist - move your feet, avoid bending forwards and
sideways and keep the load as close to your body as possible.
Where possible transport the boiler using a sack truck or other suitable trolley.
Always grip the boiler firmly, and before lifting feel where the weight is concentrated to establish the centre of gravity, repositioning yourself as necessary. See the
‘Installation’ section of these instructions for recommended lift points.
Remember
The circumstances of each installation are different. Always asses the risks associated with handling and lifting according to the individual conditions.
If at any time when installing the boiler you feel that you may have injured yourself STOP !!
DO NOT ‘work through’ the pain - you may cause further injury.
IF IN ANY DOUBT DO NOT HANDLE OR LIFT THE BOILER - OBTAIN ADVICE OR ASSISTANCE BEFORE PROCEEDING !!
Working at Height
In order to reduce the number of fatalities and major accidents attributable to working at height, the Health and Safety Executive has introduced comprehensive
regulations and guidance that should be followed by all businesses working at height.
The following paragraphs consider some of the main features of the regulations and guidance. This is, however, only a limited summary and it is recommended
that all businesses planning on undertaking air source heat pump heating installations obtain a copy of the regulations and guidance issued by the Health and
Safety Executive and carefully consider the contents.
The regulations and guidance state that you are required to carry out a risk assessment for all work conducted at height and to put in place arrangements for:
•
•
•
•
Eliminating or minimising risks from work at height.
Safe systems of work for organising and performing work at height.
Safe systems for selecting suitable work equipment.
Safe systems for protecting people from the consequences of work at height.
The regulations and guidance highlight a hierarchy for safe work at height:
•
•
•
Avoid the risk by not working at height if practicable.
Prevent falls. Where it is not reasonably practicable to avoid work at height, you are required to take suitable and sufficient steps to prevent the risk of a fall
including selecting the most suitable work equipment (in accordance with the regulations).
Mitigate the consequences of a fall; where the risk of a person or object falling still remains, take suitable and sufficient measures to minimise
the distance and consequences of any fall.
Collective protection measures, such as guard rails on scaffold, should be given priority over personal protection measures, such as safety harnesses.
Within the regulations’ framework, you are required to:
1) Assess the risk to help you decide how to work safely.
2) Follow the hierarchy for safe work at height (i.e. avoid, prevent and mitigate).
3) Plan and organise your work properly, taking account of weather conditions and the possibility of emergencies.
4) Make sure those working at height are competent.
5) Make use of appropriate work equipment.
6) Manage the risks from working on or around fragile surfaces and from falling objects.
7) Inspect and maintain the work equipment to be used and inspect the place where the work will be carried out for both access and egress.
© Baxi Heating UK Ltd 2009
5
Contents
Section
6
© Baxi Heating UK Ltd 2009
Page
1.0
Introduction
7
2.0
General Layout
8
3.0
Technical Data
10
4.0
System Details
11
5.0
Site Requirements
15
6.0
Boiler Internal Wiring
20
7.0
Installation
21
8.0
Completion & Commissioning
25
9.0
Annual Servicing
27
10.0
Changing Components
29
11.0
Setting the Gas Valve
33
12.0
Fault Finding
34
13.0
Short Parts List
38
14.0
Notes
39
Benchmark Checklist
42
1.0 Introduction
1.1
Description
1. The Baxi Bermuda BBU 15 HE is a central heating
boiler designed for installation within a builders opening
in the living space of a dwelling.
2. The boiler is a fully automatic gas fired condensing
boiler. It is room sealed and fan assisted.
3. The boiler output will automatically modulate
between:
Max
Min
15kW
4.6kW
15.7kW (condensing) 4.83kW (condensing)
According to system load
4. It must be fitted in conjunction with one of the
available electric firefront units as listed on page 2.
The separate electric firefront is intended for hearth
mounting. All instructions, fixings etc. needed to fit the
firefront are included in the firefront pack.
5. These instructions relate to the central heating boiler
section of the appliance (Fig. 1).
6. The appliance is designed for use on NATURAL
GAS (G20) only.
Fig. 1
7. It can be used on sealed or open vented systems.
It must NOT be fitted on any type of gravity system.
The boiler is suitable for fully pumped systems ONLY.
8. The boiler is fitted with an integral pump unit for the
removal of condensate.
9. The boiler data badge gives details of the model,
serial number and Gas Council number and is situated
on the front case panel.
10. The boiler is intended to be installed in a residential
environment on a governed meter supply only.
11. The boiler must be installed with one of the
MULTIIFIT vertical concentric Flexi Flue kits available:10m kit 720101701 or 12.5m kit 720102001.
12. All systems must be thoroughly flushed and
treated with inhibitor (see section 4.2).
1.2
Fig. 2
Contents
1. The boiler pack contains:
• Boiler Unit
• Plumbing Kit
• Condensate Pipe & Elbow
• Fixings Kit
• Literature Pack
2. The flue pack contains:
• Terminal Cap
• Flue Duct Adaptor (inc. seal)
• Air Cowl
• Air Duct Collar (inc. 4 screws)
• Air Duct Clamp
• Closure Plate
• Boiler Concentric
Adaptor (inc. 2 seals)
• 10m or 12.5m of Concentric
Flexible Duct
• 2 x 60mm grey Seals
• 1 x 100mm red Seal
© Baxi Heating UK Ltd 2009
7
2.0 General Layout
2.1
1
2
3
17
4
5
16
15
14
6
13
7
12
8
Layout (Fig. 3)
1.
Automatic Air Vent
2.
Flue Connection
3.
Spark Generator
4.
Spark & Sensing Electrodes
5.
Heat Exchanger
6.
Boiler Control Connector
7.
Control Wiring Connector
8.
Condensate Sump
9.
Gas Cock
10.
Condensate Pump
11.
Fan
12.
Drain
13.
Return Connection
14.
Air Sampling Point
15.
Flue Sampling Point
16.
Flow Connection
17.
Condensate Outlet
18.
PCB Control Box (shown removed for clarity)
19.
Boiler Control (cover open)
The Boiler Control operates the boiler remotely. This is
supplied with the firefront and is fitted, in operation, to the
firefront spacer frame.
IMPORTANT: To commission the boiler it is is necessary
to remove the Boiler Control from the firefront
packaging and connect it to the boiler at the upper right
hand side (item 6).
9
11
10
PCB Control Box
removed for clarity
Fig. 3
18
PCB Control Box
19
Calibration Controls
8
© Baxi Heating UK Ltd 2009
2.0 General Layout
1
2.2
8
Flue Kit (10m & 12.5m) (Fig. 3a)
1.
Terminal Cap
2.
Flue Duct Adaptor
3.
Air Cowl
4.
Air Duct Collar
5.
Air Duct Clamp
6.
Closure Plate
7.
Boiler Adaptor
8.
60mm Ø Seal
9.
Collar Securing Screws x 4
10.
100mm Ø Seal
11.
60mm Ø Flue Duct
12.
100mm Ø Air Duct
13.
‘C’ Clip
2
3
9
4
5
6
8
11
10
12
7
13
Fig. 3a
© Baxi Heating UK Ltd 2009
9
3.0 Technical Data
3.1
Bermuda HE CBBU 15 HE
Appliance Type
Sedbuk Declaration For Bermuda
BBU 15 HE
The seasonal efficiency (SEDBUK) is 90.1%
This value is used in the UK Government’s
Standard Assessment Procedure (SAP) for energy
rating of dwellings. The test data from which it has
been calculated has been certified by 0087.
C33
Appliance Category
CAT I 2H
Inlet Pressure (Natural Gas - G20)
mbar
20
Injector (Natural Gas - G20)
420 (4.2 mm)
NOx Class
5 (31mg/kWh)
Heat Input (Net)
kW
Max
15.4
Min
5.0
Heat Input (Gross)
kW
Max
17.1
Min
5.7
Heat Output (Non-Condensing)
Max
kW
15.0
Min
4.88
Heat Output (Condensing)
kW
Max
15.7
Min
5.25
Max
75
Min
25
Boiler Set Temperature
°C
Gas Rate
(Natural Gas - G20)
(After 10 mins)
m3/h
Max
1.63
Min
0.54
Electrical Supply
230V~ 50Hz
(Appliance must be connected to an
earthed supply)
Boiler Power Consumption
112W
Boiler Electrical Protection
IPX0
Boiler External Fuse Rating
3A
Connections
Gas Supply
Flow
Return
15mm compression
22mm male copper
22mm male copper
-
Weights
Packaged Boiler Carton
Installation Lift Weight
Flue Length
Metres
Dimensions
Casing Height
Casing Width
Casing Depth
28 kg
27 kg
Max
12.5
Min
3.0
- 538mm
- 383mm
- 306mm
Firefront
See the instructions supplied with the firefront for
all Technical Data
10
© Baxi Heating UK Ltd 2009
4.0 System Details
4.1
Water Circulating Systems
1. The appliance is suitable for use on fully pumped
systems ONLY which may be sealed or open vented.
2. The following conditions should be observed at all
times:
The static head must not exceed 30m
of water.
The static head must not be less than
1m of water.
The boiler must not be used with a
direct cylinder.
Drain cocks should be fitted to all
system low points.
All gas and water pipes and electrical
wiring must be installed in such a way
that they do not restrict the servicing of
the boiler.
Position isolating valves as close as
possible to the circulating pump.
There is a drain cock supplied in the
plumbing kit.
4.2
Treatment of Water Circulating
Systems
All recirculatory water systems will be subject to
corrosion unless they are flushed and an appropriate
water treatment is applied. To prevent this, follow the
guidelines given in BS 7593 “Treatment of Water in
Domestic Hot Water Central Heating Systems” and
the treatment manufacturers instructions.
Treatment must involve the use of a proprietary
cleanser, such as Sentinel X300 or X400, or Fernox F3
and an inhibitor such as Sentinel X100 or Fernox MB-1.
Full instructions are supplied with the products, for
further information contact Sentinel (0800 389 4670)
or Fernox (0870 870 0362).
Failure to flush and add inhibitor to the system will
invalidate the appliance warranty.
It is important to check the inhibitor concentration after
installation, system modification and at every service in
accordance with the inhibitor manufacturer’s
instructions. (Test kits are available from inhibitor
stockists.)
For information or advice regarding any of the above
contact Technical Enquiries 0844 871 1555.
© Baxi Heating UK Ltd 2009
11
4.0 System Details
Copper
0.5m
Copper
0.5m
4.3
Flow
Boiler
Return
Copper
1m
Pipework
1. The sizes of the flow and return pipes from the
boiler should be determined by normal methods
according to the requirements of the system.
2. It is recommended that the system is designed for a
drop in temperature across the system of between
11& 20°C.
Fig. 4
22mm
Open Vent
3. In systems using non-metallic pipework it is
necessary to use copper pipe for the boiler Flow and
Return. The copper must extend at least 1 metre from
the boiler and include any branches. The copper pipe
must not be insulated (Fig. 4).
Air Vent
4.4
Indirect
Cylinder
15mm
Cold
Feed
Radiator
Circuit
Flow
1. The system in which the appliance is installed should
include a control system.
2. Such a system would comprise a timer control and a
separate room and/or cylinder thermostat as
appropriate.
Pump
Boiler
System Controls
3. The boiler should be controlled so that it operates
on demand only.
Return
4.5
Fully Pumped System
Fully Pumped Open Vent System (Fig. 5)
1. The sizes of the system pipes should be determined
by normal methods.
Fig. 5
2. The open vent pipe should be a minimum of 22mm
and must rise continuously to a point above the feed
and expansion tank.
3. The flow pipe from the boiler form part of the vent
pipe. No part of the open vent may contain a valve.
4. Inverted pipe runs must be avoided.
5. On low capacity systems with a maximum available
flow rate of less than 8.3l/min (temperature differential
›25°C) an external bypass must be fitted .
6. The bypass must be of the automatic pressure
operated type.
4.6
Storage Systems
1. For information regarding the use of a Bermuda
BBU 15 HE boiler with a storage system, contact the
appropriate storage system manufacturer.
12
© Baxi Heating UK Ltd 2009
4.0 System Details
4.7
Sealed Systems (Figs. 6, 7 & 8)
1. Installation. The installation must comply with the
requirements of BS 6798 and BS EN 12828. The British
Gas publication “British Gas Specification for Domestic
Wet Central Heating Systems” should also be
consulted.
Pressure
Gauge
Air Vent
Safety
Valve
Indirect
Cylinder
Pump
Expansion
Vessel
Flow
Boiler
Radiator
Circuit
Return
Filling
Point
Fully Pumped Sealed System
2. Pressure Relief Valve. A non-adjustable spring loaded
pressure relief valve, preset to operate at 3 bar
(45 lbf/in2) shall be used. It must comply with BS 6759:1
and include a manual testing device. It shall be
positioned in the flow pipe either horizontally or
vertically upwards and close to the boiler. No shut off
valves are to be placed between the boiler and the
safety valve. The valve should be installed with a
discharge pipe which permits the safe discharge of
steam and hot water such that no hazard to persons or
damage to electrical components is caused.
3. Pressure Gauge. A pressure gauge incorporating a fill
pressure indicator, covering the range 0-4 bar (60
lbf/in2) shall be fitted to the system. It should be
connected to the system, preferably at the same point
as the expansion vessel. Its location should be visible
from the filling point.
Fig. 6
© Baxi Heating UK Ltd 2009
13
4.0 System Details
4.7
4. Expansion Vessel. A diaphragm type expansion vessel to
BS 4814:1 shall be fitted close to the inlet side of the pump.
The connecting pipework should not be less than 15mm.
Pipework connecting the expansion vessel should not
incorporate valves of any sort.
Temporary
Hose
Mains Water
Supply
(Service Pipe)
Hose
Union
Sealed Systems (cont)
Stop
Valve
Methods of supporting the vessel are supplied by the vessel
manufacturer.
Double
Check
Valve
Heating
System
The nitrogen or air charge pressure of the expansion vessel
shall not be less than the hydrostatic head, (height of the
top point of the system above the expansion vessel). To
size the expansion vessel it is first necessary to calculate the
volume of water in the system in litres. The following
volumes may be used as a conservative guide to calculating
the system volume.
Boiler Heat Exchanger:
Small Bore Pipework:
Micro Bore Pipework:
Steel Panel Radiators:
Low Water Capacity Radiators:
Hot Water Cylinder:
Filling a Sealed Water System (Method 1)
Mains Topping Up Method
NOTE: This method of filling a sealed system
may only be used if acceptable to Local Water
Undertaking
1.55 litres
1 litre per kW of system output
7 litre
8 litre per kW of system output
1 litre per kW of system output
1 litre per kW of system output
Fig. 7
If the system is extended, the expansion vessel volume may
have to be increased unless provision has been made for
extension. Where a vessel of the calculated size is not
available, the next available larger size should be used.
The boiler flow temperature is controlled at approx. 75°C.
The vessel size can now be determined from the
information in table 1 where V = System volume in litres.
5. Cylinder. The hot water cylinder must be an indirect
coiler type.
Mains Water
Supply
Cistern
6. Method of Make Up. Provision shall be made for
replacing water loss from the system either:Pressure Pump
Reducing Valve
(if required)
Stop
Valve
Heating
System
Filling a Sealed Water System (Method 2)
Cistern Filling Method
NOTE: Cistern to be supplied through a
temporary connection from a service pipe or
cold water distributing pipe
Vessel Charge Pressure (bar)
Initial System Pressure (bar)
Expansion Vessel Volume (litres)
Table 1
14
© Baxi Heating UK Ltd 2009
Fig. 8
a) From a make up vessel or tank mounted in a position
higher than the top point of the system and connected
through a non-return valve to the system on the return side
of the hot water cylinder or the return side of all heat
emitters.
or
b) Where access to a make up vessel would be difficult by
using the mains top up method or a remote automatic
pressurisation and make up unit.
7. Mains Connection. There shall be no connection to the
mains water supply or to the water storage tank which
supplies domestic hot water even through a non-return
valve, without the approval of the Local Water Authority.
8. Filling Point. A filling point connection on the central
heating return pipework must be provided to facilitate initial
filling and pressurising and also any subsequent water loss
replacement/refilling.
The sealed primary circuits may be filled or replenished by
means of a temporary connection between the circuit and a
supply pipe, provided a ‘Listed’ double check valve or some
other no less effective backflow prevention device is
permanently connected at the inlet to the circuit and the
temporary connection is removed after use.
0.5
1.5
1.0
V x 0.11
1.0
V x 0.087
The filling method adopted must be in accordance with all
relevant water supply regulations and use approved
equipment.
Your attention is drawn to: for GB: Guidance G24.2 and
recommendation R24.2 of the Water Regulations Guide. for
IE: the current edition of IS 813 “Domestic Gas
Installations”.
5.0 Site Requirements
5.1
390mm min
490mm max
595mm max
(575mm max Valour Dimension
Regalia ONLY )
Fireplace
Opening
560mm min
5570mm min
Builders
Opening
Builders Opening (Fig. 9)
1. The boiler unit is designed to fit within a standard
builders opening, the minimum dimensions of which are
as shown.
Height
Width
Depth
570mm
584mm
305mm
2. The opening should be soundly constructed of brick,
pre-cast concrete or be a proprietary builders opening.
584mm min
3. The base of the opening should be sound and noncombustible and must be flat and level.
4. The base of the builders opening should be at the
same height as the finished level of the hearth.
SURROUND OR FINISHED
WALL FACE
HEARTH
LEVEL
560mm minimum
590mm maximum
570mm minimum
IMPORTANT: If a false chimney breast is intended
to house the boiler, a simulated builders opening,
within the breast, must be provided.
5. The builders opening must not communicate with
voids, pipe ducts or spaces other than the room in
which the appliance is situated.
Solid, non combustible hearth
to support the boiler,
as specified in BS 5871.
305mm minimum
Fig. 9
5.2
Location
1. The appliance must be installed in the living space of a
dwelling. It is recommended that it is a ground floor
location.
2. Restrictions to the siting of the appliance are covered
by BS 5546. The appliance may not be installed in
bathrooms or shower rooms. bedrooms or bed sitting
rooms.
5.3
Fireplace Opening & Surround
1. If a fireplace surround is to be used, it must be
centrally placed and have opening sizes as shown in
Fig. 9.
5.4
Firefont Frame Extension Kit
1. To accommodate the firefront there must be at least
95mm from the surround or finished face to the front of
the boiler.
2. If necessary this can be increased by the use of Frame
Extension Kits. Each extension increases the effective
depth of the opening by 50mm.
3. See the instructions supplied with the firefront for full
details.
© Baxi Heating UK Ltd 2009
15
5.0 Site Requirements
5.5
Flue
1. The following guidelines indicate the general
requirements for installation of flues.
For GB recommendations are given in BS 5440 Part 1.
For IE recommendations are given in the current edition
of I.S. 813 “Domestic Gas Installations”.
A
B
C
2. Only one of the two available MULTIIFIT vertical
concentric Flexi Flue kits approved for use with the
boiler can be used (10m kit 720101701 or 12.5m kit
720102001). Any proprietary flue systems, terminals,
adaptors etc. MUST NOT BE USED.
3. The available flue kits are intended for installation
within an existing chimney. This should be clean and
sound, and any other previously installed flue
components (liners, dampers etc.) removed.
4. The flue must have a minimum vertical height of 3m
and have no bends greater than 45°.
NO HORIZONTAL RUNS ARE PERMITTED !
Fig. 10
5. The terminal must be sited so that free passage of air
across it can occur at all times.
6. It must also be a MINIMUM of 150mm from any
other terminals or obstructions (A). When adjacent to
windows or openings on pitched or flat roofs it must be
at least 600mm away (B). A minimum dimension of
2000mm must be maintained when below windows or
openings in pitched roofs (C) (Fig. 10).
16
© Baxi Heating UK Ltd 2009
5.0 Site Requirements
5.6
Ventilation
1. No ventilation is required for the boiler in the room of
installation.
5.7
Gas Supply (Fig. 11)
1. The gas installation should be in accordance with
relevant standards. In GB this is BS 6891. In IE this is I.S.
813 “Domestic Gas Installations”. The connection at the
appliance is 15mm copper tail located at the rear of the
gas tap.
2. Ensure the pipework from the meter to the appliance is
of adequate size. It is necessary to route the gas supply
pipe to the right hand side of the builders opening. It must
be routed so as not to restrict the installation and
servicing of the appliance.
5.8
Electrical Supply (Fig. 11)
1. External wiring must be correctly earthed, polarised and
in accordance with relevant regulations/rules. In GB this is
the current I.E.E. Wiring Regulations. In IE reference
should be made to the current edition of the ETCI rules.
The mains supply is 230V ~ 50Hz fused at 3A.
NOTE: The method of connection to the electrical supply
must facilitate complete electrical isolation of the
appliance. Connection may be made via a fused double
pole isolator with a contact separation of at least 3mm on
all poles and serve the boiler and system controls only.
The boiler MUST NOT be connected to the same supply
as the firefront as their fuse ratings are different and
subsequent damage may occur.
Fig. 11
Electrical Connection
2. The boiler supply cable within the builders opening
should be 0.75mm2 to IEC 53 code 227 (heat resistant).
Gas Connection
3. It is preferable to route the electrical supply cable to
the right hand side of the builders opening. If however it
must come from the left hand side it must be routed so
as not to restrict the servicing of the appliance.
4. The cable must be routed to avoid contact with any
part of the boiler.
© Baxi Heating UK Ltd 2009
17
5.0 Site Requirements
5.9
Condensate Drain - General
Failure to install the condensate discharge pipework
correctly will affect the reliable operation of the boiler.
1. Ensure the discharge of condensate complies with any
national or local regulations in force.
BS 6798 & Part H1 of the Building Regulations give further
guidance.
2. If any further drain pipe is required (additional to that supplied
with the boiler), it should be run in a proprietary material
e.g. PVC, PVC-U, ABS, PVC-C or PP. John Guest ‘Speedfit’
components are recommended.
3. Metal pipework is NOT suitable for use in condensate
discharge systems.
4. Any pipe fitted externally must be kept as short as possible to
minimise the potential of freezing and must be insulated using
waterproof material.
Min. radius 100mm
Gravity Drain
min. fall 3°
Point ‘A’
5. When discharging condensate into a soil stack or waste pipe
the effects of existing plumbing must be considered.
Max. Head
3.5 metres
Note: The point of discharge from the
pumped length of condensate pipe
(point ‘A’) must be 150mm above the
base level of the boiler, whether
discharging direct into a drain or into
an additional gravity drain.
Boiler
5.10
Condensate Disposal (Fig. 12)
1. This boiler incorporates an automatic pumped condensate
system. The pump is submerged in a sump assembly and is
activated by the discharge float switch. A second (safety) float
switch is fitted.
2. The pump has an effective head of 3.5 metres. The
condensate outlet is positioned at the top right front of the
boiler. It is 10mm diameter plastic.
Fig. 12
3. 3.5 metres of flexible 10mm condensate discharge pipe and a
10mm push fit elbow are supplied with the boiler.
4. The 10mm pipe can be routed to a maximum of 3.5 metres
vertically and then discharge via gravity or be routed
horizontally. A combination of vertical and horizontal runs is
permissible.
5. The pipe must be adequately supported, either using suitably
spaced clips or run within larger diameter pipe. When using clips
take care not to deform the pipe.
6. When routing the pipe through a wall it must be suitably
sleeved. Also the pipe must not be exposed to sources of heat,
and should be protected in locations where it may be damaged.
7. The pipe should be routed so that any sharp bends, dips and
loops are avoided. A minimum radius of 100mm is
recommended for any bends. No slope is necessary and air
breaks are not required on the pumped part of the condensate
run.
8. Any part of the condensate drain system that is outside the
dwelling, or in an unheated part of it must be at least 21.5mm
diameter.
18
© Baxi Heating UK Ltd 2009
5.0 Site Requirements
5.10
Termination via internal discharge branch e.g
sink waste - downstream
Direct Connect Fitting
Condensate Disposal (cont.)
9. Ensure that the condensate can discharge freely (without
blockage or restriction of the pipe) into the drain.
Pipe must terminate
above water level but
below surrounding surface
10. Examples are shown of condensate pipe methods of
termination:-
Sink
i)
Fig. 13
via an internal discharge branch
(e.g. sink waste) - Fig. 13.
ii) to an internal or external soil and vent pipe Fig. 14.
iii) to a drain or gully - Fig. 15. Ensure that the
condensate can discharge freely (without
blockage or restriction of the pipe) into the
drain.
iv) to a soakaway - Fig. 16.
From Boiler
Termination to an internal soil and vent pipe
Direct Connect Fitting
5.11
From Boiler
Min. 450mm
Fig. 14
Condensate Pump Operation
1. The pump operates for 2 seconds when mains voltage is
applied to the boiler, e.g. when the power has been
interrupted and then reinstated.
2. If the boiler reset rocker switch has been operated the
pump will run also for 2 seconds.
Termination to a drain or gully
Pipe must terminate above
water level but below
surrounding surface
3. When the level of condensate in the sump is sufficient to
activate the discharge float switch the pump will run for 7
seconds, during which time about 0.6 litres of condensate will
be discharged.
From Boiler
Fig. 15
4. In the event of condensate not being discharged the safety
float switch will operate when the volume of condensate in
the sump reaches 1.05 litres. Once the safety float switch has
been activated the boiler will lockout.
500mm Min.
5. The total volume of the sump is 1.5 litres.
Termination to a purpose made
soak-away
From Boiler
Fig. 16
© Baxi Heating UK Ltd 2009
Holes in the soak-away must
face away from the building
19
6.0 Boiler Internal Wiring
6.1
Boiler Internal Illustrated Wiring Diagram
Central Heating
NTC Flow Sensor
gr gr
Overheat Thermostat
Discharge Float
Switch
Safety Float
Switch
bk
b
bk
1
r
4
2
br
gr
gr
g
bk
bk
5
b
Fan
3
1
bk
2
b
g/y
br
bk
bk
X400
X900
X401
9 87 6 5 4 3 2 1
10 9 8 7 6 5 4 3 2 1
4
X300
r
2
3
Control PCB
X9
1
X501
X500
1
2
1
X1
2
3
4
1
5
X2
2
3
5
4
6
7
8
9
b
y
Condensate Pump
X3
b
br
bk
bk
br
br
bk
b
br
b
ON/OFF
bk
bk
b
Reset
br
b
b
br
N
br
3
Spark
Generator
1 2
r
b
b
a
Gas Valve
r
bk
b
Ignition
Electrode
y
N 3
1 2
Mains Input
(Permanent Live to 3,
Switched Live to 1)
b
y
br
bk
b
w
y
20
© Baxi Heating UK Ltd 2009
- brown
- black
- blue
- white
- yellow
g
g/y
r
gr
- green
- green / yellow
- red
- grey
7.0 Installation
INSTALLATION SEQUENCE
There are 4 main elements to the installation of the
Baxi Bermuda BBU 15 HE:• Preparation of pipework & opening
• Inserting the flue into the chimney
• Siting & fixing the boiler
• Fitting the terminal assembly
The sequence in which these are performed may
depend upon various factors beyond the scope of
these instructions. The above list is intended as a
guide based on a typical installation.
It is not necessary to open the firefront pack until
the boiler and flue are installed, and the boiler is
ready to be commissioned. The firefront pack
includes full instructions.
7.1
Initial Preparation
1. Remove the outer carton from the boiler pack.
Discard the packing pieces and remove the fitting kit.
Fig. 17
2. Ensure that the base of the builders opening is clean
and level.
3. Complete any pipework installation and routing of
electrical cables within the builders opening that may be
difficult once the boiler is in place.
7.2
Flue System
1. The actual length of flue (as opposed to the vertical
distance from the boiler top to the chimney outlet)
MUST be established before commencing.
Fig. 18
2. The flue must have a minimum vertical height of 3m
and have no bends greater than 45°.
NO HORIZONTAL RUNS ARE PERMITTED !
3. Depending on the actual flue length it may be
beneficial to shorten the flue at this point to enable
easier handling.
Fig. 19
4. Take one of the 60mm lip seals supplied and fit to
the first groove in the flue duct. Also fit the 100mm lip
seal to the air duct. (Figs. 17 & 18).
NOTE: Talcum powder may be used to ease fitting
of the adaptors over the seals. DO NOT use oil,
grease or soap.
5. Unfasten the clips on the boiler adaptor and insert
the end of the flue duct with the seal into the 60mm
socket. Ensure the seal is positioned past the clips, then
engage the clips over the larger diameter ‘rib’ on the
duct (Fig. 19).
6. Repeat the process for the 100mm air duct (Fig. 20)
Fig. 20
© Baxi Heating UK Ltd 2009
21
7.0 Installation
7.2
Flue System (cont.)
8. It is recommended that the Pull Cone Flue Adaptor
(part no. 720111801) is used as shown to ease the
fitting of the flue into the chimney and prevent damage
to the adaptor.
Fig. 22
Fig. 21
9. The cone has two internal lugs that engage on the
boiler adaptor in a bayonet action (Figs. 21 & 22).
10. A suitable weight should then be tied to the guide
rope fixed to the cone. The weight can then be passed
into the chimney and will draw the guide rope down
(Fig. 23).
Remove plug
from here
11. Once the Pull Cone is visible in the builders opening
it can be removed. It can be re-used indefinitely on
other installations.
NOTE: These seals
factory lubricated
Note: It is recommended that the boiler is installed
at this point. See Sections 8.3 to 8.7
Fig. 23
12. Remove the plastic plug from the boiler flue outlet.
Grasp the adaptor and locate it into the boiler, ensuring
the two large barbs lock into position under the boiler
top panel (Fig. 24) Fit the ‘C’ clip to the adaptor to
secure the flue. It must fit into the barbs and clip
securely into place (Fig. 24a).
Fig. 24
Barb
13. There will now be an excess of flue and air duct
protruding from the chimney.
14. Cut the excess concentric ducts to leave
approximately 300 to 500mm protrudung from the
chimney and pass the square closure plate over the air
duct (Figs. 25 & 26).
‘C’ Clip
Fig. 24a
15. Cut the 100mm air duct ONLY that 5 ‘ribs’ are
above the level of the chimney, taking care not to
damage the 60mm flue duct.
16. In a similar way to fitting the boiler adaptor fit the
air duct clamp to the air duct. This will prevent the duct
falling back into the chimney (Fig. 27).
Cut to leave
5 ribs visible
Fig. 25
Fig. 26
22
© Baxi Heating UK Ltd 2009
Fig. 27
7.0 Installation
7.2
Air Cowl
Flue System (cont.)
16. Pass the air duct collar and air cowl over the 60mm
flue duct (Fig. 28) and secure the collar to the closure
plate with the screws supplied (Fig. 29). The air cowl
will fit snugly over the collar.
Fig. 29
17. Cut the protruding 60mm flue duct down so that 5
ribs are visible and fit the remaining 60mm lip seal into
the first groove (Fig. 30). The flue duct adaptor can
now be fitted in the same manner as the boiler adaptor
(Fig. 31).
Air Duct
Collar
5 ribs
Fig. 28
18. Fit the terminal cap over the flue duct adaptor and
air cowl. Once the cap is clipped into position it cannot
be removed easily without damage (Fig. 33).
19. Cement over the closure plate and air duct collar to
a depth of approximately 100mm. Consideration should
be given to the potential accumulation of snow in this
area, and the possibility of it blocking the air inlet
(Fig. 34).
Fig. 30
Fig. 31
Terminal
Cap
Fig. 32
Cement around
Air Duct Collar
& Cowl
Fig. 33
Fig. 34
© Baxi Heating UK Ltd 2009
23
7.0 Installation
7.3
Siting the Boiler
IMPORTANT - This product should be lifted and
handled by two people. Stooping should be avoided and
protective equipment worn where necessary. Carrying
& lifting equipment should be used as required, e.g.
when installing on another floor.
Fixing Slot
1. Lift the boiler from the packing base and place into the
opening.
2. Align the boiler centrally as far back in the opening as
possible, and ensure the distance between each side and
the opening is equal. Check that the boiler is level.
3. Mark the hearth through two of the slots in the base
(Fig. 35). Remove the boiler and drill the hearth. Insert
suitable plugs. Replace the boiler & check the alignment
within the opening. Secure the boiler with suitable screws.
Fig. 35
Condensate
7.4
Discharge (remove
plug before connection)
Water Connections
1. The boiler has one return and one flow connection. The
flow is the upper connection. It is essential the flow and
return pipes are connected correctly (Fig. 36).
7.5
Gas Connection
1. Connection to the gas supply is a 15mm compression
fitting on the gas cock. The gas supply pipe must be routed
from the right hand side.
2. The positioning of the gas supply pipe must not restrict
the servicing of the boiler or installation of the firefront.
7.6
Return
Electrical Connection
1. The boiler requires an electrical supply from the heating
controls system.
Flow
WARNING: The appliance must be earthed.
The input cable for the appliance should be 0.75mm2 to
IEC Code 227 (heat resistant). The system external
controls and the boiler must be supplied by the same
isolator. The boiler MUST NOT be connected to the
Fig. 36
same supply as the firefront as their fuse ratings are
different.
7.7
Making the Electrical Connection
1. Take the 5 pin plug from the boiler fitting kit, remove
the securing screws and hinge the cover open.
3
N
Fig. 37
24
© Baxi Heating UK Ltd 2009
2. Route the mains inlet cable under the cable clamp and
connect Permanent Live, Neutral & Earth to 3, N &
respectively. Ensure that the Earth lead is longest.
3. Connect the switched output from the system external
control system to terminal 1.
1
2
4. Refit the cover, tighten the screws to secure the cable
and connect the plug to the one on the boiler.
Auto Air
Vent
8.0 Completion & Commissioning
ON/OFF
8.1
Service
Reset
Completion
1. Seal off any secondary openings within the builders
opening after wrapping the gas and water pipes through the
brickwork and within the opening itself. (B.S. 5871 Part 1).
2. Take the Boiler Control from the firefront packaging and
connect it to the boiler (Fig. 38).
8.2
Commissioning the Boiler
1. Reference should be made to BS 5449 Section 5 when
commissioning the boiler.
Fig. 38
2. At the time of commissioning, complete all relevant
sections of the Benchmark Checklist at the rear of this
publication.
IMPORTANT: The heat exchanger air vent on top of the
boiler (Fig. 38) MUST be opened before filling the
primary system.
3. Ensure all valves in the water system are turned on.
4. The system must be flushed in accordance with BS 7593
(see Section 5.2) and the flushing agent manufacturers
instructions.
Fig. 39
5. Turn the gas supply on and purge according to in GB BS
6891 and in IE I.S. 813 "Domestic Gas Installations".
6. Test for gas soundness.
7. Ensure all external controls e.g. room stat, timer etc. are
calling for heat and turn on the mains electrical supply. Turn
the rocker switch at the top right of the boiler to ON. The
fan and condensate pump will run briefly.
Countdown
8. The display will count down from 7 to 0, then the current
water temperature will be displayed.
9. When there is a demand for heating the bar on the top
left of the display will be shown and the boiler will
commence the ignition sequence.
Current Temp.
& Demand
10. When ignition is established the ‘flame’ symbol on the
display is illuminated. The display will indicate the flow
temperature. The appliance is fully preset, therefore no
adjustment is required.
Burner Lit
11. If the boiler fails to ignite within the three ignition
attempts the error code E133 will appear in the display, ‘E1’
alternating with ‘33’.
12. To reset the boiler press the reset button for at least 3
seconds. The ignition sequence will then recommence. A
maximum of four resets in a five hour period are allowed.
Remaining
Resets
Fig. 40
© Baxi Heating UK Ltd 2009
13. When the reset button is activated the number of
available reset attempts will be displayed
25
8.0 Completion & Commissioning
8.2
Commissioning the Boiler (cont.)
IMPORTANT: The combustion for this appliance has
been checked, adjusted and preset at the factory for
operation on the gas type specified on the appliance data
plate. No measurement of the combustion is necessary.
Do not adjust the air/gas ratio valve.
Having checked:
That the boiler has been installed in accordance with
these instructions.
The integrity of the flue system and the flue seals, as
described in Section 7.2.
Proceed to put the boiler into operation as follows:
Check the Operational Gas Inlet Pressure
14. Set the boiler to operate at maximum rate as
described in Section 11.1.2 to 11.1.6.
15. With the boiler operating in the maximum rate
condition check that the operational gas pressure at the
inlet gas pressure test point is 20mb (Fig. 40a).
16. Ensure that this inlet pressure can be obtained with
all other gas appliances in the property working.
Fig. 40a
Inlet Gas Pressure
Test Point
Measure the Gas Rate
17. With any other appliances & pilot lights turned OFF
the gas rate can be measured. It should be between 1.55
and 1.71m3/h.
18. Carefully read and complete all sections of the
Benchmark Commissioning Checklist at the rear of this
publication that are relevant to the boiler and installation.
These details will be required in the event of any
warranty work. The publication must be handed to the
user for safe keeping and each subsequent regular service
visit recorded.
For IE, it is necessary to complete a “Declaration of
Conformity” to indicate compliance with I.S. 813. An
example of this is given in I.S. 813 “Domestic Gas
Installations”. This is in addition to the Benchmark
Commissioning Checklist.
19. Disconnect the Boiler Control and fit the firefront in
accordance with the instructions supplied with it.
IMPORTANT: The loose boiler serial number label
supplied in the boiler kit must be applied to an area of
the spacer frame that is visible to the end user e.g.
lower right hand side.
26
© Baxi Heating UK Ltd 2009
9.0 Annual Servicing
9.1
Annual Servicing
1. For reasons of safety and economy, it is recommended that
the boiler is serviced annually. Servicing must be performed by
a competent person in accordance with B.S. 7967-4.
2. After servicing, complete the relevant Service Interval
Record section of the Benchmark Commissioning Checklist at
the rear of this publication.
3. Disconnect the firefront electric supply. Remove the fascia
from the firefront. Unhook its hanging brackets from the slots
in the top of the firefront. On Classica and Innova models also
disengage the retaining magnets at the lower part of the fascia.
4. Slacken the firefront retaining wire and unthread it from the
bracket on top of the boiler. The firefront can now be
manoeuvred away from the boiler. Do not drag the firefront
as it may damage the hearth. To completely remove the
firefront disconnect the boiler control cable.
Flue Sampling
Plug
IMPORTANT: During routine servicing, and after any
maintenance or change of part of the combustion circuit, the
following must be checked:The integrity of the flue system and the flue seals, as
described in Section 7.2.
The integrity of the boiler combustion circuit and relevant
seals as described in Section 9.2.
The operational gas inlet pressure as described in Section
8.2.14 to 8.2.16 and the gas rate as described in 8.2.17.
The combustion performance as described in 9.1.5 to 9.1.6.
Competence to carry out checking Combustion
Performance
B.S. 6798 ‘Specification for Installation & Maintenance of Gas
Fired Boilers not exceeding 70kW’ advises that:The person carrying out a combustion measurement
should have been assessed as competent in the use of a
flue gas analyser and the interpretation of the results.
Fig. 41
The flue gas analyser used should be one meeting the
requirements of BS7927 or BS-EN50379-3 and be
calibrated in accordance with the analyser manufacturers’
requirements.
Off Position
Competence can be demonstrated by satisfactory
completion of the CPA1 ACS assessment, which covers
the use of electronic portable combustion gas analysers in
accordance with BS 7967, Parts 1 to 4.
Check the Combustion Performance
5. Set the boiler to operate at maximum rate as described in
Section 11.1.2 to 11.1.6.
6. Remove the threaded plug from the sampling point, insert
the analyser probe and obtain the CO/CO2 ratio. This must
be less than 0.004.
On Position
Fig. 42
© Baxi Heating UK Ltd 2009
7. If the combustion reading is greater than this, and the
integrity of the flue system and combustion circuit seals has
been verified, and the inlet gas pressure and gas rate are
satisfactory either adjust the gas valve (Section 11.0), replace
the gas valve (Section 10.8) or contact the ‘heateam’ Technical
Helpline (0844 871 1555).
27
9.0 Annual Servicing
PCB Control Box
Securing Screw
9.2
Annual Servicing - Inspection
Reset Switch
1. Ensure that the boiler is cool.
PCB Control
Box
2. Ensure that the gas supply to the boiler is isolated.
3. Operate the Reset switch (Fig. 41) to activate the
condensate pump and then repeat. This will empty most of
the condensate from the sump.9. Isolate the boiler from the
electrical supply.
Off Position
4. Undo & remove the flue sampling plug and washer. Remove
the screws retaining the boiler front panel, and lift the panel
away (Fig. 43).
Fig. 43
5. Remove the screw securing the PCB control box and swing
the box to the right (Fig. 43).
Boiler Front
Panel
6. Disconnect the two plugs from the fan motor and remove
the sensing pipe from between the gas valve and fan outlet.
7. Remove the gas feed pipe and washers, and extract the
injector from the gas/air inlet manifold.
Spark
Generator
8. For ease of access disconnect the following:a) 2 pin plug on NTC lead
b) all wires from electrode assembly
c) all wires from spark generator
d) both wires from the overheat thermostat
e) the red and black wires connected together
Electrode
Assembly
9. Undo the two securing nuts and remove the spark
generator and bracket.
10. Undo the combustion panel securing nuts and remove the
special spring washers. Remove the complete fan & panel
assembly from the boiler.
Injector
Sensing Pipe
Gas Valve
11. Lay the assembly to one side. The outer insulation panel is
fitted to the rear of the combustion box panel.
Gas Feed
Pipe
12. Clean inside the heat exchanger and examine the
condition of the fins.
13. Examine the burner, electrodes, insulation and seal,
replacing if necessary. Also check the condition of the three
insulation pieces in the rear of the heat exchanger.
Discharge Pipe
Locking Clip
14. Disconnect the wires on the condensate pump motor and
pull off the plastic discharge pipe. Cut and remove the transit
cable tie. It is not necessary to replace this item.
Fan
15. Squeeze the two retaining clips and turn the pump
anticlockwise to remove it. Draw it upwards from the sump.
Condensate Pump
Fig. 44
28
© Baxi Heating UK Ltd 2009
16. Clean any debris from the sump and examine the
condition of the pump seal, replacing if necessary.
17. Reassemble in reverse order of dismantling, checking and
replacing any components as necessary. Recommission the
boiler and complete the relevant Service Interval Record
section of the Benchmark Commissioning Checklist at the rear
of this publication.
10.0 Changing Components
10.1
Changing Components
1. To change any components on the back boiler it is
necessary to remove the firefront.
2. Refer to the Installer Guide that accompanies the
firefront for details of removal.
3. Ensure that the boiler is cool and that the electrical
and gas supplies are isolated.
Fig. 45
4. After changing any components carry out gas
soundness checks.
5. Undo & remove the flue sampling plug and washer.
Remove the screws retaining the boiler front panel, and
lift the panel away.
Spark Generator
6. Remove the screw securing the PCB control box and
swing the box to the right.
10.2
Spark Generator (Fig. 46)
Plug
1. Note the position of the two leads on the spark
generator and disconnect them. Also disconnect the
earth wire and plug, and remove the screws securing the
spark generator to the bracket.
Fig. 46
2. Remove the spark generator. Replace in reverse order
of dismantling, using the screws previously removed.
3. Ensure that the leads and plug are pushed fully on to
their terminals.
10.3
PCB Control Box
removed for clarity
Electrode Assembly (Fig. 47)
1. Note the position of the two leads on the electrode
assembly and disconnect them. Disconnect the in-line
connection on the black wire and the earth wire.
2. Undo the securing screws and remove the electrode
assembly and earth tag from the combustion box panel.
Sealing Gasket
Electrode
Fig. 47
3. Replace in reverse order of dismantling, using the
screws previously removed. Examine the sealing gasket
and replace if necessary.
Condensate Pump
4. Ensure that the leads are pushed fully on to their
terminals.
10.4
Locking Clip
Condensate Pump (Fig.48)
1. Note the position of the two leads and earth wire on
the pump motor and disconnect them.
2. Cut and remove the transit cable tie. It is not
necessary to replace this item.
3. Squeeze in the two locking clips and turn the pump
anti-clockwise. Pull the condensate discharge pipe off its
connection and remove the pump.
4. Replace in reverse order of dismantling. Examine the
sealing ring and replace if necessary.
Fig. 48
© Baxi Heating UK Ltd 2009
5. Ensure that the leads are pushed fully on to their
terminals.
29
Spark Generator
10.0 Changing Components
10.5
Fan (Fig. 49)
1. Disconnect the two plugs from the fan motor and
remove the sensing pipe from between the gas valve
and fan outlet.
Plug
2. Remove the gas feed pipe and washers, and extract
the injector from the gas/air inlet manifold.
Injector
3. For ease of access disconnect the following:a) 2 pin plug on NTC lead
b) all wires from electrode assembly
c) all wires from spark generator
d) both wires from the overheat thermostat
e) the red and black wires connected together
Note position
of Slot
Electrode
4. Undo the two securing nuts and remove the spark
generator and bracket.
5. Undo the combustion panel securing nuts and remove
the special spring washers. Remove the complete fan &
panel assembly from the boiler. Check the condition of
the insulation piece.
Fig. 49
6. Undo and remove the nuts and washers securing the
fan to the gas/air inlet. NOTE THE POSITION OF THE
RESTRICTOR PLATE !
Fan
7. Remove the securing screws and transfer the fan inlet
to the new fan. Use a new sealing gasket if necessary.
8. Replace in reverse order. ENSURE THAT THE
RESTRICTOR PLATE IS CORRECTLY FITTED ! THE
SLOT MUST BE TO THE REAR. Check the condition of
the sealing gaskets between the fan and gas/air inlet and
the combustion panel and heat exchanger and replace if
necessary.
10.6
Burner (Fig. 50)
1. Proceed as described in points 1. to 5. above.
2. Undo the screws securing the burner to the
combustion panel. Remove the burner.
PCB Control Box
removed for clarity
3. Replace in reverse order of dismantling, using the
screws previously removed. Examine the sealing gasket
and replace if necessary.
10.7
Burner
1. Remove the gas feed pipe and washers, and extract
the injector from the gas/air inlet manifold.
2. Replace in reverse order of dismantling. Examine the
sealing washers and replace if necessary.
Spark Generator
Plug
Gas Feed
Pipe
30
© Baxi Heating UK Ltd 2009
Injector (Fig. 50)
Injector
Fig. 50
10.0 Changing Components
10.8
Gas Valve (Fig. 51)
IMPORTANT: After replacing the valve the CO2 must be
checked and adjusted as detailed in Section 11.0 Setting
the Gas Valve. Only change the valve if a suitable
calibrated combustion analyser is available, operated by a
competent person - see Section 9.1
1. Disconnect the plug and earth wire from the gas valve and
remove the sensing pipe from between the valve and fan
outlet.
2. Remove the gas feed pipe and washers, and extract the
injector from the gas/air inlet manifold.
PCB Control Box
removed for clarity
3. Undo the nut on the pipe from the gas cock to the valve
inlet adaptor, and remove the screws securing the adaptor to
the boiler side panel.
4. Remove the valve complete with the inlet and outlet
adaptors, and the seal on the inner face of the side panel.
Transfer the adaptors to the new valve, using new ‘O’ rings if
necessary.
5. Replace in reverse order of dismantling, using the screws
previously removed. Examine all sealing gaskets and washers
and replace if necessary.
Injector
NOTE: To assist the boiler to light prior to final setting,
use a suitable hexagon key to wind out the Gas/Air
adjustment screw until it is flush with the valve body, then
turn the screw 4 full turns clockwise (Fig. 51). If the boiler
will not light, or the correct CO2 cannot be achieved
contact the ‘heateam’ technical helpline.
Gas Valve
Earth Wire
Fig. 51
© Baxi Heating UK Ltd 2009
31
10.0 Changing Components
Safety Thermostat
10.9
PCB (Fig. 54)
1. Pull off the two control knobs and disengage the
securing tabs of the cover. Undo the screws securing the
PCB.
Flow Pipe
2. Draw the PCB forwards and disconnect the wiring.
Transfer the two potentiometer drive pins to the new
PCB and replace in reverse order of dismantling.
Fig. 52
3. Ensure that the wiring connectors are pushed fully on
to the PCB terminals.
10.10
NTC (Fig. 53)
1. Disconnect the 2 pin plug. Remove the clip retaining
the NTC in the heat exchanger pocket. Pull the NTC
out of the pocket.
2. Apply suitable heat transfer paste to the new NTC.
Replace in reverse order of dismantling, using the clip
previously removed. Ensure that the plug is fully engaged.
Clip
10.11
Safety Thermostat (Fig. 52)
1. Disconnect the two leads from the thermostat.
NTC
Fig. 53
2. Remove the screws securing the thermostat to the
mounting plate on the flow pipe.
3. Replace in reverse order. The thermostat is not
polarised - either wire can fit either terminal on the
thermostat.
10.12
Float Switches (Fig. 55)
1. Remove the fan as described in Section 10.5,
paragraphs 1 to 5.
2. The two float switches are the same, but oriented
differently. The discharge switch is at the left, the safety
at the right.
PCB
3. To remove either switch disconnect the lead and pull
off the alignment bracket.
Fig. 54
4. Undo the retaining nut. The sealing grommet will be
released from the sump body and allow the switch to be
removed.
Control Knobs
5. Note the orientation of the alignment rib on the
switch. It is positioned uppermost on the safety float
switch and to the bottom on the discharge switch.
Discharge
Float Switch
6. Take the new switch assembly and insert it into the
sump. Hand tighten the nut and slide the alignment
bracket in place to ensure the switch is in position.
Tighten the nut a further 2 turns.
7. Reconnect the lead to the switch, ensuring it is fully
engaged.
Alignment
Bracket
32
© Baxi Heating UK Ltd 2009
Safety Float
Switch
Fig. 55
11.0 Setting the Gas Valve
11.1
Setting the Gas Valve (CO2 check)
IMPORTANT: The CO2 must be only be checked and
adjusted to set the valve if a suitable calibrated
combustion analyser is available, operated by a
competent person - see Section 9.1
Flue Sampling
Point
1. The combustion (CO2) may be checked after running the
boiler for several minutes. To do this it is necessary to set
the boiler to ‘Calibration Mode’.
Display
2. Ensure that all external controls are calling for heat. The
actual current boiler temperature is shown on the display.
Control
Knobs
3. Turn both control knobs fully anticlockwise, then quickly
turn the right hand knob 1/4 clockwise twice and back fully
anticlockwise (Fig. 56).
Fig. 56
4. The display will now alternate between ‘SF’ and the
current boiler temperature and both green LEDs will flash
(Figs. 57 & 58).
5. Turn the left hand knob fully clockwise. As the knob is
turned the display will change, indicating the fan speed.
Fig. 57
Fig. 58
6. The display will show ‘00’, indicating maximum rate, then
revert to ‘P ‘ alternating with the current boiler temperature
(Figs. 59, 60 & 61 ).
Fig. 59
7. Remove the plug from the flue sampling test point. Insert
the analyser probe and allow sufficient time for the reading
to settle (Fig. 56).
The CO2 should be 9.3% ± 0.2
Fig. 60
Fig. 61
Max Rate
Adjustment Screw
(cover removed)
Min Rate
Adjustment Screw
(cap fitted)
Reduce CO2
at min. rate
Increase CO2
at min. rate
Reduce CO2
at max. rate
8. It is possible to alter the CO2 by adjustment of the gas
valve. Remove the plastic cover from the ‘Max Rate’
adjustment screw. At maximum rate the ‘Max. Rate’
adjustment screw should be turned, using a suitable hexagon
key, until the correct reading is obtained (Fig. 62).
Turning clockwise will reduce the CO2. Anticlockwise will
increase the CO2.
9. The CO2 must then be checked at minimum rate. Turn
the left hand knob fully anti-clockwise. As the knob is turned
the display will change, indicating the fan speed. When the
display reads ‘ 0’ the boiler runs at minimum rate.
Increase CO2
The CO2 should be 8.2% ± 0.2
at max. rate
10. With the boiler on minimum, the ‘Min. Rate’ adjustment
screw must be altered, using a suitable hexagon key, after
removing the cap (Fig. 62). Turning anti-clockwise will reduce
the CO2. Clockwise will increase the CO2.
Fig. 62
If the CO2 is reset at minimum rate it must
be rechecked at maximum rate again and
adjusted if required. If the CO2 is reset at
maximum rate it must be rechecked at
minimum rate and adjusted if required.
© Baxi Heating UK Ltd 2009
11. The ‘Calibration Function’ is maintained for 20 minutes
unless the maximum CH temperature is exceeded. The
function can be disabled at any time by turning the right
hand knob.
12. Check the CO/CO2 ratio. This must be less than 0.004.
33
12.0 Fault Finding
12.1
NOTE: When instructed to
operate the reset button, press
and hold for 5 seconds to reset
the boiler.
Initial Fault Finding Checks
1. Check that gas, water and electrical supplies are available
at the boiler.
2. Electrical supply = 230V ~ 50 Hz. Check the CH & DHW
system. The preferred minimum gas pressure is 20 mbar.
3. Carry out electrical system checks, i.e. Earth Continuity,
Resistance to Earth, Short Circuit and Polarity with a suitable
meter.
NOTE: These checks must be repeated after any
servicing or fault finding.
4. Ensure all external controls are calling for heat and check
all external and internal fuses. Before any servicing or
replacement of parts, ensure the gas and electrical supplies
are isolated.
Table Of Error Codes
E20
E28
E50
E110
E125
E131
E133
E155
E158
E160
Central Heating NTC Fault
Incorrect PCB Fitted
Hot Water NTC Fault
Safety Thermostat or Condensate Safety Float Switch Operated
Circulation Fault (Primary Circuit)
Interruption Of Power Supply while in fault mode
Interruption Of Gas Supply or Flame Failure
Lock Out of Boiler Control
Condensate Discharge System Fault
Fan or Fan Wiring Fault
Service Reset
To perform a Service Reset it is necessary to have access to the boiler.
By pressing the Reset rocker switch on the right of the boiler case for a
minimum of 5 seconds when error codes are displayed it is possible to
reset the boiler once the fault has been rectified.
Restoring Boiler Control Default
Following a Service Reset it is necessary to restore the Boiler Control to
default condition:Disconnect the main power supply
On reinstating the power supply the Boiler Control display will count
down from 7.
Before the count reaches 3 press both the ‘On/Off’ and ‘Reset’ buttons
simultaneously and hold until the count reaches 0.
The Boiler Control display will show ‘SEt’ to confirm default restoration.
34
© Baxi Heating UK Ltd 2009
12.2
Error Codes
1. If a fault occurs on the boiler an error code may be shown
on the boiler display and the Boiler Control.
2. The codes are either two or three digit, preceded by the
letter 'E'. For example, code E133 will be displayed by 'E1'
alternating with '33'. E20 is shown as 'E' then '20'
E20 & E28 indicate faulty or incorrect components.
E110 shows overheat of the primary water or excess
condensate in the sump.
E125 is displayed if within 2 hours of the burner lighting the
boiler temperature twice exceeds the selected temperature
by 25°.
In these instances poor primary circulation or no water in the
system is indicated.
E133 indicates that the gas supply has been interrupted,
ignition has failed or the flame has not been detected.
E155 indicates a Boiler Control reset when Service & Boiler
Control reset counters are out of step. Boiler Control default
not restored correctly.
E158 indicates a condensate discharge system fault.
3. By pressing the 'Reset' button on the Boiler Control for a
minimum of 5 seconds when E110 & E133 are displayed it is
possible to relight the boiler.
4. If this does not have any effect, or the codes are displayed
regularly further investigation is required. It is possible to
reset the boiler up to 4 times in any 5 hour period. Further
resets via the Boiler Control are then blocked for 5 hours
unless a Service Reset is performed.
12.0 Fault Finding
Refer to Section 16.0 “Illustrated Wiring Diagram” for position of terminals and components
Central Heating - Follow operational sequence
Turn on Power Supply
Display Illuminates
NO
NOTE: Sections ‘A’ to ‘L’
referred to in the chart
opposite are on the
following pages
Go to section ‘A’
YES
Error 110 flashing
Error 131 flashing
YES
Press the Service Reset
switch for 5 seconds
YES
If the error 110 is still flashing.
Go to section ‘I’
NO
YES
Error 20 or 28 flashing
Go to section ‘E’
NO
YES
Error 158 flashing
Go to section ‘C’
Ensure controls are set to
demand and verify the
contacts are closed
NO
NO
Turn Central Heating
thermostat to Maximum.
Pump runs
NO
Ensure all external controls
are calling for heat
YES
Go to section ‘B’
YES
YES
Error 155 flashing
Go to section ‘J’
NO
YES
Error 125 flashing
Ensure that the system is full,
primary circulation is OK &
that there is no blockage
Go to section ‘J’
NO
Fan runs
NO
Error 160 flashing
Go to section ‘D’
NO
Error 160 flashing
Go to section ‘K’
YES
Fan runs at correct speed
YES
Spark at ignition electrodes for
up to 5 seconds and for 3
attempts
YES
NO
Error 133 flashing
YES
Go to section ‘G’
Turn the selector switch to
reset
Go to section ‘F’
NO
Burner lights
YES
Burner does not stay alights
after 5 seconds
YES
Error 133 flashing
Go to section ‘H’
YES
Burner output modulates to
maintain the temperature set
NO
Check the Central Heating
NTC sensor
Go to section ‘E’
YES
Burner goes out
© Baxi Heating UK Ltd 2009
YES
Fan stops after 10 seconds
YES
Burner relights after at least 3
minutes, when the display is
less than the set temperature
(room thermostat open)
YES
Operation sequence
successful
35
Fault Finding Solutions Sections
12.0 Fault Finding
A
Is there 230V at:
1.
Main terminals L and N
2.
Main terminal fuse
NO
Check electrical supply
NO
Replace fuse
NO
3.
Check wiring
PCB - X1 connector
terminals 1,2
B
Check all system wiring and pump
C
Service Reset
Display
illuminated
Condensate Pump does not run
NO
Replace PCB
On Reset is there 230V at:
1.
PCB - X3 connector terminals 5 &
6 for at least 2 seconds
NO
2.
Condensate Pump terminals for at
least 2 seconds
NO
Replace PCB
Replace wiring
YES
Replace Cond. Pump
YES
Condensate Pump runs
Condensate drain system blocked
YES
Clean condensate drain system
NO
Replace Float Switch
D
Fan connections correct at fan. PCB X2 connector, is 230V AC across
terminals 5 & 7
YES
Fan jammed or faulty winding
YES
NO
Replace PCB
E
E20 - Temperature sensor faulty.
Cold resistance approximately
10kΩ @ 25° C
(resistance reduces with increase in temp.)
NO
Replace sensor or PCB (E28)
E28 - Incorrect PCB fitted
F
1.
2.
Check and correct the connection of the
tube between the venturi and gas valve
Gas at burner
NO
Ensure gas is on and purged
Replace PCB
NO
PCB - X3 connector is 230V AC across
terminals 1 & 2
G
36
Check and correct if necessary
1. Ignition electrode and lead
2. Electrode connection
3. Spark gap and position
© Baxi Heating UK Ltd 2009
YES
YES
voltage at PCB - X2 connector is
110V AC across terminals 2 & 5
(Note: from multimeter connect
‘common’ to 2 & ‘volts’ to 5)
Check wiring
Replace gas valve
NO
YES
Replace PCB
Replace igniter
Replace fan
H
1.
2.
Check the gas supply pressure:
For Natural Gas greater than
10 - 11 mbar
12.0 Fault Finding
Check and correct if necessary
1. The mechanical set of the gas valve
(CO2 values - see instruction)
2. Flame sensing electrode and lead connections
3. Flame sensing electrode position
YES
Flame current should be more than 0.5 μA
Replace PCB
NO
Replace flame sensing electrode
I
Overheat Thermostat or
Condensate Safety Float Switch
operated or faulty
Allow to cool. Continuity
across thermostat terminals
more than 1.5 ohm
YES
Replace Safety Thermostat
NO
Continuity across plug
terminals at 3 & 4 of connector
X401 more than1.5 ohm
NO
Replace PCB
YES
Condensate drain system fault
YES
Check condensate system
and Pump
NO
Replace Safety Float Switch
or wiring
J
Press the Service Reset switch
for 5 seconds
K
L
Fan connections correct at fan.
PCB - X401 connector terminals 5,6,7 & 8
1.
Temperature sensors faulty.
Cold resistance approximately
10kΩ @ 25° C (CH sensor)
(resistance reduces with increase in temp.)
Restore Boiler Control defaults
YES
NO
YES
2.
If pump is running the heat exchanger could be
obstructed
Replace fan
Replace sensor
Replace heat exchanger
IMPORTANT:There is no limit to the number of repeated ‘Service Reset’
operations but the Boiler Control must be refreshed by ‘Restoring Boiler
Control Default’ as described on p.34 following the final ‘Service Reset’ and
before the Boiler Control reset is re-used.
© Baxi Heating UK Ltd 2009
37
13.0
Short Parts List
Short Parts List
A
Key
No.
Description
Manufacturers
Part No.
A
Burner Assy
720125701
B
Injector
720126301
C
Ignition Lead
720127501
D
Gas Valve
720127001
E
P.C.B
720125801
F
Fan
5121447
G
NTC Sensor
720126101
H
Float Switch
I
Safety Thermostat
720126401
J
Spark Generator
5114766
K
Condensate Pump
720125901
J
B
I
C
G
H
E
F
D
38
© Baxi Heating UK Ltd 2009
K
(Safety or Discharge)
720126201
14.0 Notes
© Baxi Heating UK Ltd 2009
39
14.0 Notes
40
© Baxi Heating UK Ltd 2009
14.0 Notes
© Baxi Heating UK Ltd 2009
41
GAS BOILER SYSTEM COMMISSIONING CHECKLIST
This Commissioning Checklist is to be completed in full by the competent person who commissioned the boiler as a means of demonstrating
compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference.
Failure to install and commission this equipment to the manufacturer’s instructions may invalidate the warranty but does not affect statutory rights.
Customer Name
Telephone Number
Address
Boiler Make and Model
Boiler Serial Number
Commissioned by (print name)
Gas Safe Register licence No.
Company Name
Telephone Number
Company Address
Commissioning Date
To be completed by the customer on receipt of a Building Regulations Compliance Certificate*:
Building Regulations Notification Number (if applicable)
CONTROLS Tick the appropriate boxes
Time and Temperature Control to Heating
Room Thermostat and
Programmer/Timer
Programmable
Room Thermostat
Time and Temperature Control to Hot Water
Load/Weather
Compensation
Optimum Start
Control
Cylinder Thermostat and Programmer/Timer
Combination Boiler
Heating Zone Valves
Fitted
Not Required
Hot Water Zone Valves
Fitted
Not Required
Thermostatic Radiator Valves
Fitted
Not Required
Automatic Bypass to System
Fitted
Not Required
Boiler Interlock
Provided
ALL SYSTEMS
The system has been flushed and cleaned in accordance with BS7593 and boiler manufacturer’s instructions
Yes
What system cleaner was used?
What inhibitor was used?
Quantity
litres
CENTRAL HEATING MODE Measure and Record:
Gas Rate
m3/hr
OR
Burner Operating Pressure (if applicable)
mbar
OR
ft3/hr
Gas Inlet Pressure
mbar
Central Heating Flow Temperature
°C
Central Heating Return Temperature
°C
COMBINATION BOILERS ONLY
Is the installation in a hard water area (above 200ppm)?
Yes
No
If yes, has a water scale reducer been fitted?
Yes
No
What type of scale reducer has been fitted?
DOMESTIC HOT WATER MODE Measure and Record:
Gas Rate
m3/hr
OR
Burner Operating Pressure (at maximum rate)
mbar
OR
ft3/hr
Gas Inlet Pressure (at maximum rate)
mbar
Cold Water Inlet Temperature
°C
Hot water has been checked at all outlets
Yes
Temperature
°C
Water Flow Rate
l/min
CONDENSING BOILERS ONLY
The condensate drain has been installed in accordance with the manufacturer’s instructions and/or BS5546/BS6798
Yes
ALL INSTALLATIONS
If required by the manufacturer, record the following
CO2
%
OR
CO
ppm
OR CO/CO2 Ratio
The heating and hot water system complies with the appropriate Building Regulations
Yes
The boiler and associated products have been installed and commissioned in accordance with the manufacturer’s instructions
Yes
The operation of the boiler and system controls have been demonstrated to and understood by the customer
Yes
The manufacturer’s literature, including Benchmark Checklist and Service Record, has been explained and left with the customer
Yes
Commissioning Engineer’s Signature
Customer’s Signature
(To confirm satisfactory demonstration and receipt of manufacturer’s literature)
*All installations in England and Wales must be notified to Local Authority Building Control (LABC) either directly or through a Competent Persons Scheme.
A Building Regulations Compliance Certificate will then be issued to the customer.
42
©Heating and Hotwater Industry Council (HHIC)
www.centralheating.co.uk
SERVICE RECORD
It is recommended that your heating system is serviced regularly and that the appropriate Service Record is completed.
Service Provider
Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s
instructions.
Always use the manufacturer’s specified spare part when replacing controls.
SERVICE 1
SERVICE 2
Date
Energy Efficiency Checklist completed?
Yes
No
Date
Energy Efficiency Checklist completed?
Engineer Name
Engineer Name
Company Name
Company Name
Telephone Number
Telephone Number
Gas Safe Register licence No.
Gas Safe Register licence No.
Comments
Comments
Signature
Signature
SERVICE 3
SERVICE 4
Date
Energy Efficiency Checklist completed?
Yes
No
Energy Efficiency Checklist completed?
Engineer Name
Company Name
Company Name
Telephone Number
Telephone Number
Gas Safe Register licence No.
Gas Safe Register licence No.
Comments
Comments
Signature
Signature
SERVICE 6
Date
Energy Efficiency Checklist completed?
Yes
No
Energy Efficiency Checklist completed?
Engineer Name
Company Name
Company Name
Telephone Number
Telephone Number
Gas Safe Register licence No.
Gas Safe Register licence No.
Comments
Comments
Signature
Signature
SERVICE 8
Date
Energy Efficiency Checklist completed?
Yes
No
Engineer Name
Company Name
Company Name
Telephone Number
Telephone Number
Gas Safe Register licence No.
Gas Safe Register licence No.
Comments
Comments
Signature
Signature
Yes
No
Yes
No
Yes
No
SERVICE 10 Date
Date
Energy Efficiency Checklist completed?
No
Date
Energy Efficiency Checklist completed?
Engineer Name
SERVICE 9
Yes
Date
Engineer Name
SERVICE 7
No
Date
Engineer Name
SERVICE 5
Yes
Yes
No
Energy Efficiency Checklist completed?
Engineer Name
Engineer Name
Company Name
Company Name
Telephone Number
Telephone Number
Gas Safe Register licence No.
Gas Safe Register licence No.
Comments
Comments
Signature
Signature
43
Please complete the boxes below
9.0 Warranty & Service
Serial Number
Standard Warranty Terms & Conditions
To activate your second year free warranty you must register your boiler with
heateam the service division of Baxi Heating UK Ltd either by completing and
returning the registration card or calling our telephone registration line on
0800 013 7989.
Date of Installation
D D M M Y Y
Installer Details (name, address and contact number(s))
It is also a requirement of the warranty that the boiler has an annual service
(every 12 months) in accordance with the installation and servicing
instructions, performed by a Gas Safe registered engineer.
If you would like heateam to carry this out please call on 0844 871 1525.
Our promise to you
If you experience a fault with your new boiler, we aim to provide a safe and
high quality repair service supported by our dedicated national network of
highly skilled engineers. If your installer can’t resolve the problem for you, we
will do everything we can to get an engineer out to you as quickly as possible.
Nothing in this warranty will affect your statutory consumer rights.
What you need to do if you experience a problem with your heating system
or the operation of the boiler
You should always contact your installer first, because the cause of the fault
may not be related to the boiler. If your installer confirms that the fault is with
the boiler and he/she can’t repair it, our friendly customer service team is on
hand to help. Simply call our service division heateam on 0844 871 1525 to
book an engineer visit or for any general advice that you may need. Our
contact centre is open Monday to Friday 8am - 6pm, weekends and Bank
Holidays 8.30am - 2pm, excluding Christmas Day and New Years Day.
When calling heateam it would be helpful if you could have the following
information to hand:1
2
3
4
Boiler serial number (see opposite).
Boiler make and model number.
Your installer name and address details.
Proof of purchase (if you do not have the boiler serial number).
What this warranty covers
Free of charge repair or replacement of components found to be of faulty
manufacture.
Free of charge replacement of the complete unit provided always that the
failure is related to a manufacturing fault that cannot be repaired or is
uneconomic to repair.
What this warranty does not cover
Repairs to boilers which haven’t been installed and commissioned properly,
and as set out in the installation instructions (this includes the need to flush the
system effectively and add a suitable corrosion inhibitor).
Any damage caused by hard water scale deposits and/or aggressive water
resulting from corrosion.
Any other defects or failures, either in the connected heating system or
outside of the boiler itself.
Faults caused by inadequate supply of electricity, gas or water to the property.
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.
BAXI
A Tr a din g D i v i s i o n of B a x i Heat i ng U K Lt d ( 3879156)
A D ivis io n o f B a x i Gro u p
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
© Baxi Heating UK Ltd 2009
Installations within commercial settings for which this boiler was not designed.
Reimbursement of any third party repair or replacement costs that we haven’t
been told about or agreed with you in advance.
Compensation for consequential losses (e.g. loss of earnings, business losses,
stress and inconvenience) arising from a production breakdown, including
repair delays caused by factors outside our reasonable control.
After Sales Service 0844 871 1525
Comp No 710161501 (7/09)
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