Baxi 741 Instructions de montage

5112225/01

INSTALLER GUIDE

We trust that these instructions give 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 08706 061 065

(National call rates apply in the United Kingdom). In the

Republic of Ireland telephone 0044 8706 061 065.

INSTALLER: Please leave this guide with the

owner

Model 741

INSET LIVE FUEL EFFECT GAS FIRE

Fitted with

Blenheim

Sonnet fascia

(GC No. 32-032-56)

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).

Safety First.

Baxi Fires Division fires are CE Approved and designed to meet the appropriate British

Standards and Safety Marks.

Quality and Excellence.

At the heart of every Baxi Fires Division fire.

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

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INSTALLER GUIDE

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INSTALLER GUIDE

CONTENTS

Section Heading Page

1. SAFETY 4

2. APPLIANCE DATA 4

3. GENERAL INSTALLATION REQUIREMENTS 5

4. PACK CONTENTS 12

5. FIREPLACE CHECK 14

6. IGNITION CHECK 15

7. GAS SUPPLY CONNECTION 16

8. PREPARING APPLIANCE FOR INSTALLATION 16

9. HOTBOX INSTALLATION 18

9.1 Method 1 - Front fixing to fireplace surround. 18

9.2 Method 2 - Cable retention and floor fixing. 19

9.3 Sealing floor front. 21

10. BURNER & SUPPLY PIPE INSTALLATION 22

10.1 Burner and supply pipe installation. 22

10.2 Preliminary burner checks. 22

10.3 Inlet pressure check. 23

11. CERAMIC WALLS INSTALLATION 23

12. FRONT FASCIA FITTING 24

13. CERAMIC COALS INSTALLATION 25

14. FIREFRONT CASTINGS INSTALLATION 27

15. FULL OPERATING CHECKS 27

15.1 Check the control settings. 27

15.2 Check for spillage. 28

15.3 Flame supervision and spillage monitoring system. 29

16. FINAL REVIEW 30

17. SERVICING & PARTS REPLACEMENT 31

17.1 Checking the aeration setting of the burner. 31

17.2 To remove the fascia. 32

17.3 To remove the burner unit. 32

17.4 To remove the pilot unit. 32

17.5 To remove the gas valve. 33

17.6 To remove the piezo generator. 33

17.7 To grease the control tap. 33

17.8 To replace the burner. 34

17.9 To remove the main burner injector. 34

17.10 To remove the appliance from the fireplace. 34

Page 4

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 24.0kg.

!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. APPLIANCE DATA

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. 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 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 kit 0595211.

The appliance data label is located on a plate at the base of the fire. This can be seen by

removing the lower front casting.

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 715 BS 1251 BS 1289 Part 1 BS 1289 Part 2

BS EN 1806 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

Page 5

INSTALLER GUIDE

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) 2.3kW (7,850 Btu/h) 4.0kW (12,970 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 Integral piezo (Mounted on

gas valve)

Integral piezo (Mounted on

gas valve)

Aeration See section 17.1 Non-adjustable

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.

3.2.1.1 ‘Hole-in-the-wall’ installations.

! It is recommended that a hearth should be installed as in figure 1.

If 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.

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

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INSTALLER GUIDE

Figure 1. Hearth and fireplace opening dimensions

conform to those shown in

figure 2.

3.2.3 To a precast concrete or

clay flue block system

conforming to BS1289 or BS

EN 1806 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.

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 BS715. 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 3.2.3 are

met.

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INSTALLER GUIDE

Figure 2. Metal Flue box dimensions

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 (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

Page 8

INSTALLER GUIDE

Figure 3.Precast or clay flue block system

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 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.

3.11 The minimum height from the top surface of the hearth to the underside of any

shelf made from wood or other combustible materials is shown in graph 1.

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

Page 9

INSTALLER GUIDE

Graph 1. Combustible shelf clearances.

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 fasia

(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 minimum allowable distance

from the outside of the appliance case 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).

3.19 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.

Page 10

INSTALLER GUIDE

Figure 4. Removal of combustible

cladding

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