Baxi Fires Division 740FS Assembly instructions

5115978/02
© Baxi Heating U.K. Limited 2007.
Model 740FS
Inset live fuel effect gas fire
Incorporating the BAXI FIRES DIVISION
CONTROL
Fitted with one of the following fascia.
Adorn, Decadent, Dream,
Eternal, Icon, Obsession or
Visage
(GC No. 32-032-55)
We trust that this guide gives
sufficient details to enable this
appliance to be installed and
maintained satisfactorily. However, if
further information is required, our
Baxi Fires Division Technical
Helpline will be pleased to help.
Telephone [phone] (National
call rates apply in the United
Kingdom).
In the Republic of Ireland
Telephone [phone].
THIS APPLIANCE IS FOR USE WITH
NATURAL GAS (G20).
WHEN CONVERTED USING
CONVERSION KIT NO. 0595211
THIS
APPLIANCE IS FOR USE WITH
PROPANE GAS (G31).
THIS APPLIANCE IS SUITABLE ONLY
FOR INSTALLATION IN THE UNITED
KINGDOM (GB) AND THE REPUBLIC
OF IRELAND (IE).
INSTALLER: Please leave this guide with the
owner
INSTALLER GUIDE

© Baxi Heating U.K. Limited 2007.
All rights reserved. No part of this publication may be reproduced in any material form
(including photocopying), stored in any medium by electronic means (including in any
retrieval system or database) or transmitted, in any form or by any means, whether
electronic, mechanical, recording or otherwise, without the prior written permission of
the copyright owner.
Applications for the copyright owner's permission to reproduce 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.
Warning: Any person who does any unauthorised act in relation to a copyright work
may be liable to criminal prosecution and civil claims for damages.
Baxi Fires Division, Erdington, Birmingham B24 9QP
www.firesandstoves.co.uk
Because our policy is one of constant development and improvement, details may vary slightly from those
given in this publication
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INSTALLER GUIDE
© Baxi Heating U.K. Limited 2007.

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INSTALLER GUIDE
Safety First.
Baxi Fires Division fires are CE Approved and designed to meet the appropriate British
Standards and Safety Marks.
Quality and Excellence.
All Baxi Fires Division fires are manufactured to the highest standards of quality and
excellence and are manufactured under a BS EN ISO 9001 quality system accepted by
the British Standards Institute.
The Highest Standards
Baxi Fires Division is a member of the Society of British Gas Industries which works to
ensure high standards of safety, quality and performance.
Careful Installation
Baxi Fires Division is a CORGI registered company. All our gas fires must be
installed by a competent CORGI Registered Installer in accordance
with our Installer Guide and should not be fitted directly on to a
carpet or floor of combustible material.
© Baxi Heating U.K. Limited 2007.

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INSTALLER GUIDE
© Baxi Heating U.K. Limited 2007.
CONTENTS
Section Heading Page
1. SAFETY 5
2. APPLIANCE DATA 6
3. GENERAL INSTALLATION REQUIREMENTS 7
4. PACK CONTENTS 16
5. FIREPLACE CHECK 20
6. IGNITION CHECK 21
7. GAS SUPPLY CONNECTION 22
8. PREPARING APPLIANCE FOR INSTALLATION 22
9. CONVECTION BOX INSTALLATION 25
10. BURNER AND SUPPLY PIPE INSTALLATION 28
11. CERAMIC WALLS INSTALLATION 30
12. FASCIA AND CONTROL LINKAGE 31
13. FITTING THE CERAMIC FUEL EFFECT 34
14. FRONT / CASTINGS INSTALLATION 34
15. FULL OPERATING CHECKS 36
15.1 Checking the control settings. 36
15.2 Check for spillage. 36
15.3 Flame supervision and spillage monitoring system. 37
16. FINAL REVIEW 38
17. SERVICING & PARTS REPLACEMENT 39
17.1 Checking the aeration setting of the burner. 40
17.2 To remove the ignition microswitch. 40
17.3 To remove the gas shut-off microswitch. 40
17.4 To remove the fascia. 41
17.5 To replace the control slide unit. 42
17.6 To replace the control slide button. 43
17.7 To remove the complete burner unit. 43
17.8 To remove the electronic ignition generator. 44
17.9 To remove the thermocouple interrupter block. 44
17.10 To remove the pilot unit. 45
17.11 To remove the shut-off tap. 45
17.12 To remove the gas flow rate controller. 46
17.13 To replace the burner. 46
17.14 To remove the main burner injector. 47
17.15 To remove the appliance from the fireplace. 47

1. SAFETY
Installer
Before continuing any further with the installation of this appliance please read the
following guide to manual handling
!The lifting weight of this appliance is as below: -
Model Heat Engine (kg) Firefront (kg)
Combined Weight (kg)
Adorn 11.5 16.6 28.1
Visage 11.5 5.5 17.0
Icon 11.5 3.5 15.0
Dream 11.5 13.35 24.85
Eternal 11.5 3.45 14.95
Decadent 11.5 4.0 15.5
Obsession 11.5 3.25 14.75
One person should be sufficient to lift the fire. If for any reason this weight is
considered too heavy then obtain assistance.
!When lifting always keep your back straight. Bend your legs and not your back.
!Avoid twisting at the waist. It is better to reposition your feet.
!Avoid upper body/top heavy bending. Do not lean forward or sideways whilst
handling the fire.
!Always grip with the palm of the hand. Do not use the tips of fingers for support.
!Always keep the fire as close to the body as possible. This will minimise the
cantilever action.
!Use gloves to provide additional grip.
!Always use assistance if required.
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© Baxi Heating U.K. Limited 2007.

2. APPLIANCE DATA
*When converted using kit 0595211.
The appliance data label is located on a plate at the base of the fire. This can be seen by
lowering the bottom front cover of the fascia.
The efficiency of this appliance has been measured as specified in BS 7977 - 1 and the
result is as below :
Model
Efficiency % (Gross)
740 58
740 when converted to LPG. 61
The gross calorific value of the fuel has been used for this efficiency calculation. The
test data from which it has been calculated has been certified by Advantica Certification
services (0087). The efficiency value may be used in the UK Government's Standard
Assessment Procedure (SAP) for energy rating of dwellings.
The convertion of net efficiency to gross was achieved by
multiplying the net efficiency
by the following conversion factor from Table E3 of SAP 2005, rounding down to the
nearest whole number.
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© Baxi Heating U.K. Limited 2007.
Gas Natural (G20) Propane (G31) *
Inlet Pressure 20mbar 37mbar
Input - Max. (Gross) 6.85kW (23,400 Btu/h) 6.7kW (22,860 Btu/h)
Input - Min. (Gross) 2.7kW (9,410 Btu/h) 4.3kW (14,670 Btu/h)
Inlet Test Pressure (Cold) 20.0 ± 1.0mbar (8.0 ± 0.4in
w.g.)
37.0 ± 1.0 mbar (14.85 ±
0.4in w.g.)
Gas Connection 8mm pipe 8mm pipe
Burner Injector Stereomatic Cat 82 - 074 Stereomatic Size 132
Pilot & Atmosphere Sensing
Device Copreci Ref. O.D.S
21500/166
Copreci Ref. O.D.S
21500/166 Fitted with RBM
180 -02 injector
Ignition Electronic
(Battery 9V PP3) Electronic (Battery 9V PP3)
Aeration See section 17.1 Non-adjustable

This product uses fuel effect pieces and burner compartment walls containing
Refractory Ceramic Fibres (RCF), which are man-made vitreous silicate fibres.
Excessive exposure to these materials may cause irritation to eyes, skin and
respiratory tract. Consequently, it is important to take care when handling these
articles to ensure that the release of dust is kept to a minimum. To ensure that the
release of fibres from these RCF articles is kept to a minimum, during installation
and servicing we recommend that you use a HEPA filtered vacuum to remove any
dust and soot accumulated in and around the fire before and after working on the
fire. When replacing these articles we recommend that the replaced items are not
broken up, but are sealed within a heavy duty polythene bag, clearly labelled as
RCF waste. RCF waste is classed as a stable, non-reactive hazardous waste and
may be disposed at a landfill licenced to accept such waste.
Protective clothing is
not required when handling these articles, but we recommend the use of suitable
gloves to prevent irritation. We also recommend you follow the normal hygiene
rules of not smoking, eating or drinking in the work area and always wash your
hands before eating or drinking.
This appliance does not contain any component manufactured from asbestos or
asbestos related products.
3. GENERAL INSTALLATION REQUIREMENTS
3.1 The installation must be in accordance with these instructions.
For the user’s protection, in the United Kingdom it is the law that all gas appliances are
installed by competent persons in accordance with the current edition of the Gas Safety
(Installation and Use) Regulations. Failure to install the appliance correctly could lead
to prosecution. The Council for the Registration of Gas Installers (CORGI) requires its
members to work to recognised standards.
In the United Kingdom the installation must also be in accordance with:
All the relevant parts of local regulations.
All relevant codes of practice.
The relevant parts of the current editions of the following British Standards:-
BS EN 1856 Part 1 which replaces BS 715
BS EN 1858 which replaces BS 1289 Part 1
BS EN 1806 which replaces BS 1289 Part 2
BS EN 1856 Part 1 which replaces BS 4543 Part 2
BS 5440 Part 1 Page 7
INSTALLER GUIDE
© Baxi Heating U.K. Limited 2007.
Gas Conversion factor from net to gross efficiency
Natural Gas 0.901
LPG 0.921

BS 5440 Part 2
BS 6461 Part 1
BS 1251
BS EN 1806
BS 5871 Part 2
BS 6891
BS 8303
In England and Wales, the current edition of the Building Regulations issued by the
Department of the Environment and the Welsh Office
In Scotland, the current edition of the Building Standards (Scotland) Regulations issued
by the Scottish Executive.
In Northern Ireland, the current edition of the Building regulations (Northern Ireland)
issued by the Department of
the Environment for Northern Ireland.
In the republic of Ireland the installation must be carried out by a competent person and
also conform to the relevant parts of:
a) The current edition of IS 813 “Domestic Gas Installations”
b) All relevant national and local rules in force.
Where no specific instructions are given, reference should be made to the relevant
British Standard Code of Practice.
3.2 In the United Kingdom, as supplied, the appliance can be installed in the
following situations: -
3.2.1 To a fireplace
complete with surround
and hearth as shown in
figure 1 and complying
with BS1251 after
removal of the fireback
and sufficient material
behind the fireback for a
debris catchment space.
The required fireplace,
hearth, debris catchment
area and clearance
dimensions are shown in
figure 1.
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© Baxi Heating U.K. Limited 2007.
Figure 1. Hearth and fireplace opening dimensions

2.1.1 ‘Hole-in-the-wall’ Installations
! It is recommended that a hearth should be installed as in section 3.9.
!Icon firefront
If when using the Icon firefront a Hearth is not fitted, the fire must be installed so
that the distance from the base of the fireplace opening in the wall to the finished
floor level is at least 100mm. Where there is no floor covering or carpet and the
floor is of a type that is likely to be covered in such a way in the future then the
distance from the base of the fireplace opening in the wall to the floor level should
be increased to at least 175mm.
Adorn, Dream, Visage, Obsession and Eternal firefront
If when using the Adorn, Dream, Visage, Obsession and Eternal firefronts a
reduced depth Hearth is fitted, the fire must be installed so that the distance from
the base of the fireplace opening in the wall to the finished floor level is at least
100 mm. It is recommended that the reduced hearth has a depth from the fixing
plane of the fire of 100mm minimum. This is necessary to support the lower front
casting. Where there is no floor covering or carpet and the floor is of a type that is
likely to be covered in such a way in the future then the distance from the base of
the fireplace opening in the wall to the floor level should be increased to at least
175mm.
!
To protect from the risk of burns and ignition of clothing a tactile separator shall
be used. The hearth detailed in section 3.9 meets the requirements for a tactile
separator. If this is not used
then a 672mm long fender,
kerb, horizontal bar, or other
barrier, being fixed not less
than 50mm above floor level
and positioned 300mm in
front of the fixing plane of
the fire will meet the
requirement.
3.2.2 To a fireplace incorporating
a metal flue box complying with
the constructional requirements of
the current edition of BS715. The
dimensions of the flue box must
conform to those shown in figure
2.
3.2.3 To a precast concrete or clay
flue block system conforming to
BS1289 with dimensions as in
figure 3. The current versions of
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INSTALLER GUIDE
© Baxi Heating U.K. Limited 2007.
Figure 2. Metal Flue box dimensions

BS1289 and BS EN 1858
recommend that there should be
an air space or insulation
between the flue blocks and the
plaster because heat transfer may
cause cracking on directly
plastered flues. However,
generally this appliance is
suitable for installations under all
circumstances unless there is a
history of cracking problems.
Remember that faults such as
cracking may be caused by
poorly built and restrictive flues,
e.g. mortar extrusions, too many
bends, flue heights below three
metres, restrictive terminations
etc.
3.2.4 If the fireplace opening is
greater than the acceptable
dimensions given in this guide,
do not use the back of a fire
surround or marble to reduce the
opening. This may cause
cracking of the surround back or
marble.
3.3 Suitable flues and
minimum flue sizes are as
follows: -
It should be noted that, as with
many appliances, sharp bends or
horizontal runs in metal flues at the top of the system can be a cause of problems in
these types of installation.
! 225mm x 225mm conventional brick flue.
! 175mm diameter lined brick or stone flue.
! 200mm diameter factory made insulated flue manufactured to BS4543.
! 175mm diameter flue pipe. See BS6461 Part 1 for suitable materials.
! Single wall, twin wall or flexible flue liner with a minimum diameter of 125mm.
The materials to be used are stainless steel or aluminium as specified in BS EN 1856
Part 1. The liner must be sealed to the surrounding area above the fireplace opening and
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INSTALLER GUIDE
© Baxi Heating U.K. Limited 2007.
Figure 3.Precast or clay flue block system

to the top of the chimney. An approved terminal must be fitted.
!
A properly constructed precast concrete or clay flue system conforming to BS1289
or BS EN 1858. This system is only suitable if the conditions stated in section 3.2.3 are
met.
3.4 The flue must conform to BS 5440: Part 1 in design and installation.
The flue, measured from the bottom of the fireplace opening to the bottom of the
terminal, shall be not less than 3m in actual vertical height. When calculated in
accordance with BS 5440: Part 1 Annex A, the minimum equivalent
height of the flue
shall be 2.0m of 125mm dia. flue pipe.
3.5 The flue must not be used for any other appliance or application.
3.6
Any chimney damper or restrictor should be removed. If removal is not possible,
they must be secured in the open position.
3.7 If the appliance is intended to be installed to a chimney that was previously used
for solid fuel, the flue must be swept clean prior to installation. All flues should be
inspected for soundness and freedom from blockages.
3.8
If the fireplace opening is an underfloor draught type, it must be sealed to stop any
draughts.
3.9 The appliance must be mounted behind a non-combustible hearth unless the
conditions of section 2.1.1 are met (N.B. conglomerate marble hearths are considered as
non-combustible). The appliance can be fitted to a purpose made proprietary class “O”-
150°C surround. The hearth material must be at least 12mm thick. The periphery of the
hearth (or fender) should be at least 50mm above floor level to discourage the placing
of carpets or rugs over it.
The surface of the hearth must be sufficiently flat to enable the bottom of the front
surround and the bottom front cover to be aligned horizontally. Any excessive
unevenness (uneven tiles, Cotswold stone, etc.) should be rectified.
The appliance must not stand on combustible materials or carpets.
3.10
The front face of the fireplace should be reasonably flat over the area covered by
the convection box top and side flange seals to ensure good sealing. These faces should
be made good if necessary.The fireplace floor should be reasonably flat to ensure that a
good seal with the convection box can be made.
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3.11 Adorn model only
The minimum height from the base of the fireplace opening to the underside of any
shelf made from wood or other combustible materials is shown in graph 1.
Visage, Dream, Eternal, Decadent and icon models only
The minimum height from the base of the fireplace opening to the underside of any helf
made from wood or other combustible materials is shown in graph 2.
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© Baxi Heating U.K. Limited 2007.
Graph 1. Combustible shelf clearances for ADORN model only
ADORN MODEL ONLY
VISAGE, DREAM, ETERNAL, DECADENT, OBSESSION AND ICON MODELS ONLY
Graph 2. Combustible shelf clearances for VISAGE, DREAM, ETERNAL,
DECADENT, OBSESSION and ICON models only.

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© Baxi Heating U.K. Limited 2007.
3.12 Note that soft wall coverings (e.g. embossed vinyl, etc.) are easily affected by
heat. They may scorch or become discoloured when close to a heating appliance. Please
bear this in mind when installing.
3.13
This appliance must not be installed in any room that contains a bath or shower or
where steam is regularly present.
3.14
An extractor fan may only be used in the same room as this appliance, or in any
area from which ventilation for the appliance is taken, if it does not affect the safe
performance of the appliance. Note the spillage test requirements detailed further on in
this manual. If the fan is likely to affect the appliance, the appliance must not be
installed unless the fan is permanently disconnected.
3.15 Normal adventitious ventilation is usually sufficient to satisfy the ventilation
requirements of this appliance. In GB reference should be made to BS 5871 Part 2 and
in IE reference should be made to the current edition of IS 813 “Domestic Gas
Installations” which makes clear the conditions that must be met to demonstrate that
sufficient ventilation is available.
3.16
Propane gas appliances must not be installed in a room that is built entirely below
ground level (See BS 5871 Part 2).
3.17 If the appliance is to be fitted against a wall with
combustible cladding, the cladding must be removed
from the area covered by the fascia. The cladding must
also not touch the fascia. (See figure 4). We suggest that
the actual fascia is used as a template to mark the area
for combustible cladding removal and that this area is
increased by at least 2mm all round.
3.18 The appliance is fitted with an A.S.D
(Atmosphere sensing device). If the appliance closes
down after a period of operation for no apparent reason,
the consumer should be informed to stop using the
appliance until the installation and appliance have been
thoroughly checked. The A.S.D will shut the appliance
down if an unacceptable amount of harmful products of
combustion accumulate. Under no circumstances should
the A.S.D be altered or bypassed in any way. Only a genuine manufacturers replacement
part should be fitted. The individual A.S.D components are not replaceable.
3.19
A fireguard complying with BS 8423 should be fitted for the protection of young
children, the elderly, or the infirm.
Figure 4. Removal of
combustible cladding
(Shown with ‘Dream’ fascia)

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3.20 Proprietary terminals must comply with BS 715 or BS 1289. Any terminal or
termination must be positioned in accordance with BS 5440 Part 1 to ensure that the
products of combustion can be safely dispersed into the outside atmosphere. Where the
appliance is connected to an unlined brick chimney it is generally unnecessary for the
chimney pot to be replaced or for a terminal to be fitted unless the flue has a diameter
smaller than 170mm.
3.21 The minimum allowable distance from the outside of the appliance fascia to a
corner wall having combustible material or any other combustible surface which
projects beyond the front of the appliance is shown in figure 5.
A 10mm access clearance from a non-combustible surface is necessary at the left side.
See figure 5.
Figure 5. Appliance dimensions and clearances (Continued on next page)

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Figure 5 continued. Appliance dimensions and clearances
Key Description Model
Adorn Visage Icon Dream Eternal Decadent
Obsession
AHeight (mm) 768 611 622 636 611 625 621
BWidth (mm) 545 529 631 518 514 529 530
CDepth into room
(mm) 88 94 64 94 76 92 96
D
Minimum
mandatory
clearance to
combustible
surfaces
projecting beyond
the front of
appliance (mm).
100 108 65 100 100 108 100
E
Recommended
clearance to non-
combustible
surfaces for
access purposes
(mm).
10 10 65 50 50 108 50

4. PACK CONTENTS
The items required for this appliance are packed in sections.
Section 1 - Fire unit contains:
1Burner and convection box unit.
1Nut and olive for 8mm inlet pipe.
1‘T’ connector and pressure test point.
1Flue restrictor plate.
3Screws (For flue restrictor).
2Screws
(For fireback spacing brackets).
2Screws
(For rear ceramic wall support
bracket).
1Ceramic back wall.
1 Pair of ceramic side walls.
2Small “U” seals
(For convection box side flanges).
1Strip of floor sealing tape.
6Fibre plugs.
4Woodscrews.
2Fire retaining cables.
2Cable clamps.
4Eyebolts.
1Rubber grommet.
1Knurled shouldered screw
(For control linkage fixing).
2Machine screws
(For firefront fascia hanging).
1PP3 Battery.
1Smoke match tube.
2Fireback spacing brackets.
1Rear ceramic wall support bracket.
1Length of self adhesive foam seal.
1Literature pack.
1Ceramic fuel effect (Not shown)
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Section 2 - “Dream” fascia pack
contains:
1Fascia.
1Sliding control.
1Bottom front cover casting
In accessory pack
2Machine screws for fascia fixing.
1Outlet baffle.
3Tapping screws for outlet baffle.
2Washers for fascia fixing.
1Burner tray baffle.
1Control position label.
Section 2 - “Adorn” fascia pack
contains:
1Fascia with sliding control.
1Bottom front cover casting.
1Outlet baffle.
3Tapping screws for outlet baffle.
2Machine screws for fascia fixing.
2Washers for fascia fixing
Section 2 - “Visage”, ‘Eternal’, ‘
Decadent’
and ‘Obsession’ fascia pack contains:
2Fascia securing brackets.
1Fascia with sliding control.
1Fire front casting.
1Bottom front cover casting.
1Outlet baffle.
3Tapping screws for outlet baffle.
2
Machine screws for fascia securing
brackets.
Section 2 - “Icon” fascia pack contains:
1Fascia with sliding control.
1Bottom front cover.
1Top heat shield.
3
Tapping screws for top heat shield.
2Machine screws for fascia fixing.
2Knurled screws for bottom front
cover fixing.
2Cross over port covers.

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© Baxi Heating U.K. Limited 2007.
Figure 6. Pack contents

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© Baxi Heating U.K. Limited 2007.
Figure 6. Pack contents continued
ETERNAL DECADENT

Carefully remove all the contents. Take special care in handling the ceramic pieces.
Take care not to bend or distort the slide control linkage when handling the fascia.
Check that all the listed parts are present and in good condition.
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© Baxi Heating U.K. Limited 2007.
Figure 6. Pack contents continued
OBSESSION

5. FIREPLACE CHECK
5.1 Fireplace check.
5.1.1 Fireplace size.
The fireplace must comply
with the requirements
described in section 3.2.
This will probably entail
removing the fireback and
infill material behind the
fireback. The debris
catchment area shown in
figure 7 must be kept clear
of obstructions.
5.1.2 Fireplace general
condition.
The fireplace floor should be
reasonably flat to ensure that
the convection box can be
installed without it rocking and so that a good seal can be made at the bottom front of
the box. The front face of the fireplace should be reasonably flat over the area covered
by the convection box top and side flange seals to ensure good sealing. These faces
should be made good if necessary. If the appliance is to be fitted against a wall with
combustible cladding, the cladding must be removed from the area covered by the
fascia. The cladding must also not touch the fascia (See figure 4). We suggest that the
actual fascia is used as a template to mark the area for combustible cladding removal
and that this area is increased by at least 2mm all round.
5.1.3 Soundness for appliance attachment
Two primary methods of retaining the appliance are provided: -
1) By fixing to the fireplace front surround.
2)
Using concealed tension cables fixed to the rear of the fireplace opening together
with secondary fixing to the fireplace floor.
The methods are detailed in section 9 of this manual. Before selecting the retention
method, consult with the customer. Method 2 is provided for instances where drilling
holes in the front surface of the fireplace surround is unacceptable to the customer or
otherwise impractical. N.B. It is unwise to attempt to drill into marble without the
proper tools and equipment.
If method 1 is chosen, make sure that the front surround area is sound enough to take
the fibre plugs and woodscrews. If necessary, make sound with a suitable cement.
If method 2 is chosen, make sure that the areas at the back and towards the centre of the
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Figure 7. Fireplace area.