Baxi 751 Instructions de montage

5112082/01

INSTALLER GUIDE

INSTALLER: Please leave this guide with the

owner

Model 751

Heat Engine

(GC No. 32-032-67)

INSET LIVE FUEL EFFECT GAS FIRE

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).

For technical advice firstly contact your retailer. If further advice is required then call

0161703 8157 for The Midlands and North or

01462 813 138 for The South.

Safety First.

This gas fire is CE Approved and designed to meet the appropriate British Standards

and Safety Marks.

Quality and Excellence.

This fire has been manufactured to the highest standards of quality and excellence and

was manufactured under a BS EN ISO 9001 quality system accepted by the British

Standards Institute.

The Highest Standards

The manufacturer is a member of the Society of British Gas Industries which works to

ensure high standards of safety, quality and performance.

Careful Installation

The manufacturer is a CORGI registered company. This gas fire 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.

Baxi Fires Division, Erdington, Birmingham B24 9QP

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 11

5. FIREPLACE CHECK 13

6. IGNITION CHECK 14

7. GAS SUPPLY CONNECTION 15

8. PREPARING APPLIANCE FOR INSTALLATION 15

9. CONVECTION BOX INSTALLATION 18

9.1 Method 1 - Front fixing to fireplace surround. 18

9.2 Method 2 - Cable retention and floor fixing. 18

9.3 Sealing floor front - all installations. 20

10. BURNER & SUPPLY PIPE INSTALLATION 21

11. CERAMIC WALLS INSTALLATION 22

12. FITTING THE CERAMIC FUEL EFFECT 23

13. FITTING THE FASCIA 23

14. FULL OPERATING CHECKS 24

14.1 Spillage check. 24

14.2 Flame supervision and spillage monitoring system. 25

15. FINAL REVIEW 26

16. SERVICING & PARTS REPLACEMENT 27

16.1 Checking the aeration setting of the burner. 28

16.2 To remove the fascia. 28

16.3 To remove the complete burner unit. 28

16.4 To remove the pilot unit. 28

16.5 To remove the gas valve. 29

16.6 To remove the piezo generator. 29

16.7 To grease the gas valve. 29

16.8 To replace the burner. 30

16.9 To remove the main burner injector. 30

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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 the heat engine and convection box is 6.39kg.

One person should be sufficient to lift the heat engine and convection box. 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 heat engine.

!Always grip with the palm of the hand. Do not use the tips of fingers for support.

Always keep the heat engine 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

pulling on the raised tab.

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

In Scotland, the current edition of the Building Standards (Scotland) Regulations issued

by the Scottish Executive.

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 (13,650 Btu/h)

Burner 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 Spark Integral Piezo Spark

Aeration See section 16.1 Non-adjustable

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 fitting a fascia that has

a firefront designed to sit

on a hearth, a reduced

depth hearth is

recommended. This is

necessary to support the

firefront. The heat engine

must be installed so that

distance from the base of

the fireplace opening in

the wall to the finished

floor level shall be at

least 100mm.

If fitting a fascia that

does not have a separate

firefront and a hearth is

not fitted, the heat

engine must be installed

so that distance from the base of the fireplace opening in the wall to the finished floor

level shall be at least 100mm. The minimum shelf height will have to be taken from the

base of the fireplace opening.

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INSTALLER GUIDE

Figure 1. Hearth and fireplace opening dimensions

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 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.

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INSTALLER GUIDE

Figure 2. Metal flue box dimensions

! 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.

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

Page 8

INSTALLER GUIDE

Figure 3. Precast or clay flue block system

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 firefront 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.

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 below: -

•For a shelf up to 150mm deep

Minimum height = 760mm.

•For a shelf deeper than 150mm

Minimum height = 760mm + 12.5mm for every 25mm depth over 150mm.

(See 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.

Page 9

INSTALLER GUIDE

Graph 1. Combustible shelf clearances.

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

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 fascia to a corner wall

having combustible material or any other

combustible surface which projects beyond

the front of the appliance is 100mm.

A 10mm access clearance from a non-

combustible surface is necessary at both

sides.

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

Page 10

INSTALLER GUIDE

Figure 4. Removal of combustible

cladding (fascia may differ to that

shown).

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