Baxi Fires Division 756 Assembly instructions

5115053/01
INSTALLER GUIDE
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].
INSTALLER: Please leave this guide with the
owner
THIS APPLIANCE IS FOR USE WITH NATURAL GAS (G20).
WHEN CONVERTED USING CONVERSION KIT NO. 0575621 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).
Model 756
INSET LIVE FUEL EFFECT GAS FIRE
Fitted with
Splendour or
Exquisitefascia
(GC No. 32-811-46)
© Baxi Heating U.K. Ltd.

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 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
Page 2
INSTALLER GUIDE

CONTENTS
Section Heading Page
1. SAFETY 4
2. ACCESSORY LIST 4
3. APPLIANCE DATA 5
4. GENERAL INSTALLATION REQUIREMENTS 6
5. PACK CONTENTS 12
6. FIREPLACE CHECK 13
7. IGNITION CHECK 14
8. GAS SUPPLY CONNECTION 14
9. PREPARING APPLIANCE FOR INSTALLATION 15
10. HOTBOX INSTALLATION 18
10.1 Cable retention and floor fixing 18
10.2 Sealing floor front - all installations 20
11. BURNER & SUPPLY PIPE INSTALLATION 20
11.4 Check inlet pressure 21
12. FASCIA INSTALLATION 22
13. FULL OPERATING CHECKS 23
13.1 Check the burner operation 23
13.2 Check for spillage 23
13.3 Flame supervision and spillage monitoring system 24
14. FINAL REVIEW 24
15. SERVICING & PARTS REPLACEMENT 25
15.1 To remove the fascia 26
15.2 To remove the burner unit. 26
15.3 To remove the spillage plate. 27
15.4 To remove the inner panel. 27
15.5 To remove the pilot unit. 27
15.6 To remove the gas valve. 28
15.7 To remove the piezo generator. 28
15.8 To grease the control tap. 28
15.9 To replace the top surface of the burner . 29
15.10 To replace the burner . 29
15.11 To remove the burner injector. 29
15.12 To remove the appliance from the fireplace. 30
Page 3
INSTALLER GUIDE

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 Convector box (kg) Heat engine (kg) Fascia (kg) Total (kg)
Splendour 5.56 7.71 4.27 17.54
Exquisite 5.56 7.71 4.27 17.54
! 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.
2. ACCESSORY LIST
The following accessories are available: -
Description Part Number
LPG conversion kit 0575621
Page 4
INSTALLER GUIDE

3. APPLIANCE DATA
This product uses a burner gasket containing Refractory Ceramic Fibres (RCF). If the
burner surface is not made of wire mesh then this will also be made of 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 not to touch or disturb the burner surface 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. Do NOT vacuum the burner surface. When
replacing the the burner surface we recommend that the replaced items are not broken
up, but are sealed within a heavy duty polythene bag, clearly labelled as RCF waste. This
is not classified as “hazardous waste” and may be disposed of at a tipping site licensed
for the disposal of industrial 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.
* When converted using conversion kit number 0575621.
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.
Page 5
INSTALLER GUIDE
Gas Natural (G20) Propane (G31)*
Inlet Pressure 20mbar 37mbar
Input Max. (Gross) 5.3kW (18,084 Btu/h) 5.3kW (18,084 Btu/h)
Input - Min. (Gross) 3.2kW (10,918 Btu/h) 4.3kW (14,672 Btu/h)
Inlet Test Pressure (Cold) 20.0 ± 1.0mbar (8.0 ± 0.4in
w.g.)
37.0 ± 1.0mbar (14.85 ±
0.4in w.g.)
Gas Connection 8mm pipe 8mm pipe
Burner Injector Stereomatic size 170 Stereomatic Size 115
Pilot & Atmosphere Sensing
Device OPNG 9030 OPLPG 9222
Ignition Integral piezo (Mounted on
gas valve)
Integral piezo (Mounted on
gas valve)
Aeration Non-adjustable Non-adjustable

4. GENERAL INSTALLATION REQUIREMENTS
4.1 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 1251
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
BS 5440 Part 2
BS 5871 Part 2
BS 6461 Part 1
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 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.
4.2
In the United Kingdom, as supplied, the appliance can be installed in the following
situations:
4.2.1 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
Page 6
INSTALLER GUIDE

fireback for a debris
catchment space. The
required fireplace, hearth,
debris catchment area and
clearance dimensions are
shown in figure 1.
4.2.1.1 ‘Hole-in-the-wall’
installations.
! It is recommended that
a hearth should be installed
as in figure 1.
If 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 25mm. 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 then the distance from the
base of the fireplace opening in the
wall to the finished floor level
should be increased to at least
100mm.
! To protect from the risk of
burns and ignition of clothing a
tactile separator shall be used. The
hearth detailed in section 4.9 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.
4.2.2
To a fireplace incorporating a metal flue box complying with the constructional
requirements of BS EN 1856 Part 1 or BS 715. The dimensions of the flue box must
conform to those shown in figure 2.
Page 7
INSTALLER GUIDE
Figure 2. Metal flue box
Figure 1. Hearth and fireplace opening dimensions

4.2.3 A precast concrete or clay flue
block system conforming to BS EN
1806 or BS 1289 with dimensions as
in figure 3. The current versions of
BS1289 and BS EN 1806 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 (See figure3).
4.2.4 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.
4.3 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 the current edition of
BS EN 1859 or BS 4543.
! 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 or BS 715. The liner must be sealed to the surrounding area above the fireplace
opening and 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 1806. This system is only suitable if the conditions stated in section 4.2.3 are
Page 8
INSTALLER GUIDE
Figure 3. Precast or clay flue block system
dimensions

met.
4.4 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.
4.5 The flue must not be used for any other appliance or application.
4.6
Any chimney damper or restrictor should be removed. If removal is not possible,
they must be secured in the open position.
4.7
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.
4.8 If the fireplace opening is an underfloor draught type, it must be sealed to stop
any draughts.
4.9 The appliance must be mounted behind a non-combustible hearth (N.B.
conglomerate marble hearths are considered as non-combustible) unless the conditions
of section 4.2.2.1. The appliance can be fitted to a purpose made proprietary class “O”-
100°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 fascia 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.
4.10
The front face of the fireplace should be reasonably flat over the area covered by
the hotbox 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 hotbox
can be made.
4.11 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.
4.12
This appliance must not be installed in any room that contains a bath or shower or
where steam is regularly present.
Page 9
INSTALLER GUIDE

4.13
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.
4.14 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.
4.15 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 below: -
•For a shelf up to 150mm deep
Minimum height = 700mm.
•For a shelf deeper than 150mm
Minimum height = 700mm + 12.5mm for every 25mm depth over 150mm.
(See graph 1).
4.16 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. If the cladding projects forward from the fixing
Page 10
INSTALLER GUIDE
Graph 1. Combustible shelf clearances