Baxi 746 Assembly instructions

5113869/01
INSTALLER GUIDE
We trust that this guide gives sufficient detail 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. 0595221 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).
© Baxi Heating U.K. Ltd.
Model 746
INSET LIVE FUEL EFFECT GAS FIRE
Fitted with
Blenheim Slimline,
Camden,
Coast or
Sonnet fascia
(GC No. 32-032-57)

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.
Page 2
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 13
6. IGNITION CHECK 14
7. GAS SUPPLY CONNECTION 14
8. PREPARING APPLIANCE FOR INSTALLATION 15
8.1 Appliance preparation. 15
8.2 Fitting the fascia. 15
8.3 Fitting the foam seal. 16
8.4 The flue restrictor. 16
9. FIREBOX INSTALLATION 17
9.1 Firebox installation. 17
9.2 Floor sealing. 18
10. BURNER INSTALLATION 19
10.1 Burner and supply pipe installation. 19
10.2.1 Lighting the burner. 19
10.2.2 Operating the burner. 19
10.3 Inlet pressure check. 19
10.4 Fitting the burner tray trim. 20
11. CERAMIC FUEL EFFECT INSTALLATION 20
12. FITTING THE LOWER FIREFRONT 20
13. FULL OPERATING CHECKS 21
14. SPILLAGE & FLAME SUPERVISION CHECKS 22
14.1 Check for spillage. 22
14.2 Flame supervision and spillage monitoring system. 23
15. FINAL REVIEW 23
16. SERVICING & PARTS REPLACEMENT 24
16.1 Checking the aeration setting of the burner. 25
16.2 To remove the burner unit. 25
16.3 To remove the pilot unit. 26
16.4 To remove the gas valve. 26
16.5 To replace the burner. 27
16.6 To remove the main burner injector. 27
16.7 To remove the appliance from the fireplace. 27
16.8 To remove the fascia. 27
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 Weight (kg)
Blenheim & Sonnet 10.0
Camden 10.0
Coast 8.95
!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 a burner compartment rear wall 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.
Page 4
INSTALLER GUIDE

* When converted using Kit 0595221
The appliance data label is located on a plate at the base of the fire. This can be seen by
removing the lower firefront trim.
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 EN 1806
BS 4543 Part 2 BS 5440 Part 1 BS 5440 Part 2 BS 5871 Part 1
BS 6461 Part 1 BS 6891
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)
Page 5
INSTALLER GUIDE
Gas Natural (G20) Propane (G31) *
Inlet Pressure 20mbar 37mbar
Input - Max. (Gross) 6.0kW (20,500Btu/h) 6.1kW (20,800Btu/h)
Input - Min. (Gross) 2.3kW (7,850Btu/h) 3.8kW (12,965Btu/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 - 069 Stereomatic Size 128
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 Piezo Electric. Integral with
Gas Tap
Piezo Electric. Integral with
Gas Tap
Aeration See section 16.1 Non-adjustable

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
installed in accordance with:
a) The current edition of IS 813 “Domestic gas installations”
b) All relevant national and local rules in force.
c) The current building regulations
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, this appliance can be installed in the
following situations: -
3.2.1 A masonry chimney with a minimum diameter of 175mm (7”) free from any
obstruction, and with any damper or restrictor plate in the chimney removed or secured,
and having a minimum effective flue height of 3m (10ft). A masonry chimney having a
correctly installed flue liner to BS715 and with a minimum flue diameter of 125mm is
also acceptable. Chair brick removal may not be required providing at least 50mm
clearance is available from the flue outlet to any fireplace component. The appliance is
designed to cater for low lintel installations (min height 505mm) providing a minimum
distance of 25mm is maintained between the lintel and the front face of the fireplace
(i.e. 25mm rebated fire surround).
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 72 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 firefront /
casting. The minimum
shelf height will have to
be taken from the base of
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INSTALLER GUIDE
Figure 1. Hearth and fireplace opening dimensions

the fireplace opening.
3.2.2 To a fireplace incorporating a metal flue
box conforming to BS715 with a minimum
internal depth of 150mm. Incombustible
mineral wool insulation of not less than
50mm thickness must be applied to the top
surface of the firebox (See figure 2) and it
must stand on a non-combustible hearth. See
figure 1.
3.2.3 To a fireplace that has a precast
concrete or clay flue block system
conforming to BS1289 or BS EN 1806. The
appliance is suitable for installations
conforming to older versions of BS1289 as
well as the current edition. The flue blocks
must have a minimum width not less than
63mm and a cross-sectional area not less than
13,000mm2.Older editions of BS1289
required a cross-sectional area of 13,000mm2.
The current revision of the standard requires
16,500mm2. This appliance is suitable in both cases. The total depth of the opening
measured from the finished front of the fireplace (Including plaster, surround etc.) must
be not less than 120mm (See 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 The following flues are suitable:
! 225mm x 225mm conventional brick flue.
If a flue liner is used, it must be a minimum of 125mm diameter. 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

! A properly constructed precast flue
conforming to B.S 1289 or BS EN 1806.
! A flue pipe with a minimum diameter
of 127mm. See B.S 6461 Part 1 for
suitable
materials. Metal flue pipes must comply
with B.S 715.
3.3.1 The minimum effective height of
the flue must be 3m.
3.3.2 The flue must be clear of any
obstruction and its base must be clear of
debris.
3.3.3 The flue must be completely sealed
so that combustion products do not come
into contact with combustible materials
outside the chimney.
3.3.4 The flue must serve only one
fireplace.
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 dampers or restrictors should be removed. If removal is not
possible they must be fixed in the open position.
3.7 If the appliance is intended to be installed to a chimney, which 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. Pre-cast fireplace

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 appliance must not stand on combustible materials or carpets (See figure 1).
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 detailed below.
• For a shelf up to 150mm deep: Minimum height = 750mm.
• For a shelf deeper than 150mm: 150mm + 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.
3.13
The appliance must not be installed in any room, which 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
Page 9
INSTALLER GUIDE
Graph 1. Combustible shelf clearances

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, which is built entirely
below ground level (See BS 5871 Pt2).
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 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.
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.
3.20 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.
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INSTALLER GUIDE
Figure 4. Removal of combustible
cladding (Fascia may differ from
that shown)

3.21
A fireguard complying with BS 8423 should be fitted for the protection of young
children, the elderly, or the infirm.
Page 11
INSTALLER GUIDE
Figure 5. Appliance dimensions and clearances (Fascia may differ from that shown)
Key Description Model
Blenheim
& Sonnet Camden Coast
AAppliance height (mm) 587.5 587.5 587.5
BAppliance width (mm) 450 450 450
CAppliance depth into room (mm) 85 63.2 55
DMinimum mandatory clearance to combustible surfaces projecting beyond the
front of appliance (mm). 100 100 100
ERecommended clearance to non- combustible surfaces for access purposes
(mm). 10 10 10

4. PACK CONTENTS
Remove all the items carefully to prevent damage. Take special care when handling the
ceramic components. Some items may be contained in the packaging fitments -
Examine the packaging carefully before discarding. Check that all the items are present
and undamaged.
1 Hotbox and burner assembly.
1Fascia pack (Contains three
separate pieces and six magnets).
1Lower firefront / casting set.
1Literature Pack
1Loose parts pack including: -
1 Burner tray trim.
1 Length of self-adhesive foam seal.
2 Tension cables.
2 Cable adjusters.
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INSTALLER GUIDE
Figure 6. Pack contents
1
Flue restrictor with 2 securing screws.
4Woodscrews.
4 Eyebolts
4Fibre Plugs
1 Strip of Floor Sealing Tape
1Nut and Olive for 8mm Inlet Pipe
1Inlet “T” connector including
pressure test point.
1Grommet for rear of hotbox.
1Ceramic fuel effect (Not shown).

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 may
entail removing the fireback and infill material behind the fireback.
5.1.2 Fireplace general condition
The fireplace floor should be reasonably flat to ensure that the hotbox 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
hotbox 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
One primary methods of retaining the appliance is provided: -
1) Using concealed tension cables fixed to the rear of the fireplace opening.
The method is detailed in section 9.1 of this manual. Make sure that the areas at the
back and towards the centre of the fireplace floor are sound enough to take the eyebolts.
If these areas have deteriorated due to prolonged use, they should be made sound with a
suitable cement.
5.1.4 Installations using a metal flue box
The whole of the top surface of the metal flue box must be covered with a minimum
50mm layer of mineral wool or equivalent insulation (See figure 2).
5.2 Fireplace flue pull.
Close all doors and windows in the room in which the appliance is to be installed. After
confirming with a match that smoke is drawn into the flue, light a 13 gram smoke pellet
and check that there is a definite flow through the flue. Verify outside that the smoke
exits from one terminal only and that the termination is suitable. Observe where
possible, upstairs rooms and loft spaces for signs of escaping smoke indicating a
defective flue. If there is not a definite flow warm the flue for a few minutes and repeat
the smoke pellet test. If there is still no definite flow the flue may need remedial work –
Do not fit the appliance until there is a definite flow through the flue.
Page 13
INSTALLER GUIDE

6. IGNITION CHECK
Before attempting to install, it is worth checking that the ignition system performs
satisfactorily.
Set the control knob to the off position.
Depress the control knob and rotate it anticlockwise to the pilot ignition position. A
'click' will be heard as the integral
piezo operates. A spark should be seen
between the electrode and pilot tip. If
there is no spark check the following: -
! Ensure that the electrode lead is
connected to the terminal at the base of
the electrode.
! If the above is correct, check for
damage to the electrode lead.
7. GAS SUPPLY CONNECTION
A nut and olive are provided for an 8mm pipe inlet connection to the ‘T’ connector at
the bottom front of the appliance. The ‘T’ connector can be rotated to allow a
connection from any direction. The ‘T’ connector includes a valve for isolating the gas
supply and a pressure test point.
The supply pipe must be rigid material. Flexible pipe must not be used.
Concealed supply pipe connection.
If a concealed connection from inside the fireplace is required then, before the
appliance is fitted into the fireplace
it will be necessary to extend the supply line so
that it will project through the hole in the back of the hotbox and run to the ‘T’
connector at the front. The pipe run from the supply line up to the rear opening in the
hotbox must be kept away from the area which will be taken by the hotbox when it is
installed. Note that the centre of the appliance inlet ‘T’ connector is 25mm above the
fireplace floor. The inlet ‘T’ connector should be fitted to the supply pipe at this stage.
Page 14
INSTALLER GUIDE
Figure 7. Ignition operation

8. PREPARING APPLIANCE FOR INSTALLATION
8.1 Appliance preparation.
1. Remove any transit tape and
packing and inspect for any evidence
of mishandling which might affect the
performance. Each unit is flame
tested before it leaves the factory and
as a result there may be slight
discolouration around the burner
ports.
2. Detach the burner unit from the
hotbox by removing two screws (See
figure 8). Lift the burner unit clear.
3. It is important that the grommet
supplied in the loose parts pack is fitted to
the hole in the rear of the hotbox.
8.2 Fitting the fascia.
1. The fascia is supplied in three pieces.
Carefully remove the three pieces from the
packaging. Remove any protective film.
2. The magnets used to locate each trim
should already be positioned on the rear of
each trim. Each trim should have two
magnets. If the magnets are not fitted then
locate one magnet centrally at each end of
the trims.
3. Locate the side trims as in figure 9.
4. Locate the top trim as in figure 9.
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INSTALLER GUIDE
Figure 9. Fitting the fascia
Figure 8. Burner attachment points

8.3 Fitting the foam seal.
There is a length of self adhesive foam seal
supplied with the fire. This will need to be
fitted to the outer rear edges of the side and top
flanges of the hotbox.Cut the foam seal to the
required length. Be careful not to stretch the
seal when measuring. Remove the protective
backing from the foam seal and fit this to the
rear of the hotbox flange (See figure 10).
8.4 The flue restrictor.
This appliance is supplied with a flue restrictor
for use where the flue draught is excessive. The
restrictor must not be fitted where a precast
flue or a 125mm flue liner is used. For flue
liners greater than 125mm and all other
installations the restrictor should be fitted.
There may however, be certain exceptional
circumstances where fitting the restrictor causes
the fire to fail the spillage test. In such cases
the restrictor will have to be removed. After
removal conduct the spillage check again.
The restrictor is packed flat with the appliance
and will require bending prior to fixing. Bend
the restrictor as shown in figure 11.
Fit the restrictor as shown in figure 12 using
the two screws provided.
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INSTALLER GUIDE
Figure 12. Fixing restrictor
Figure 11. Bending the restrictor
Figure 10. Fitting the foam seal

9. FIREBOX INSTALLATION
9.1 Firebox installation.
1. Make sure that the relevant
areas at the fireplace back are
sound enough to take the
eyebolts. If these areas have
deteriorated due to prolonged
use they should be made
sound with a suitable cement.
2. Drill four holes in the rear
wall of the fireplace for the
eyebolt plugs. The holes
should be drilled within the
range of positions shown in
figure 13 using a no.12
masonry drill. The holes
should be equidistant each side of the centre line of the
fireplace to ensure that the appliance finishes centrally
in the opening when tension is applied to the cables.
3. Insert a fibre plug into each hole. Use the fibre plugs
supplied with this appliance - Never use plastic plugs
instead of the fibre plugs supplied. Screw the eyebolts
into the plugs. Make sure that the bolts are secure.
4. Place the hotbox unit close to the fireplace but allow
sufficient access into the fireplace opening so that the
cables can be threaded through the eyebolts and
returned through the back of the hotbox. If a concealed
connection is being used, insert the hotbox into the
fireplace feeding the supply pipe through the pierced hole
in the rear grommet.
5. The rear of the hotbox has a slot and hole each side of
the outlet opening. Assemble one end of the cable to the
top of the fire by passing it through the small round hole
and locking by positioning the cable in the adjacent slot
(See figure 14). Give the cables a pull so that they grip.
6. Thread the cables through the eyebolts. Return the
cables through the holes near the bottom of the hotbox
side panels (See figure 15).
7. Place the hotbox fully back into the fireplace opening
Page 17
INSTALLER GUIDE
Figure 15. Cable route
Figure 14. Upper cable
retention
Figure 13. Eyebolt positions

Page 18
INSTALLER GUIDE
so that it is sealed against the fireplace front
surround.
8. Fit a cable retainer over the bottom end of
each cable.
9. Pull each cable taut. Push the cable retainers
hard up against the back panel. The end of the
cable adjuster will pass into the hole. Tighten
the screws in the retainers so that they clamp the
cables in position. Apply tension to the cables
by turning the hexagonal adjusters by hand (See
figure 16).
10. Inspect the installation of the hotbox against
the fireplace surround. If the hotbox is aligned
squarely and the sealing is satisfactory, fully
tighten the cable retainers.
11. If the hotbox is not correctly aligned, release
the tension on the cables by slackening the
screws and turning the hexagonal adjusters fully
anticlockwise. The hotbox should then
automatically realign itself. Pull each cable taut
again and push the cable retainers back against
the back panel. Again, tighten the screws in the
retainers and apply tension to the cables by turning
the hexagonal adjusters clockwise as far as
possible.
12. Do not cut off any excess cable, instead coil up
the cable so that they are available to allow easy
removal and refitting of the appliance during
subsequent service calls.
9.2 Floor sealing.
Using the floor sealing tape supplied, seal the
bottom of the hotbox to the fireplace and hearth
floor. Run the tape over the centre bracket (See
figure17).
Figure 17. Floor sealing
Figure 16. Lower cable retention

10. BURNER INSTALLATION
10.1 Burner and supply pipe installation.
1. Refit the burner unit to the hotbox using the two screws removed previously
2. Connect the supply line to the appliance.
3. If closed,open the isolating valve at the inlet ‘T’ connector.
4. Turn on the gas supply and pressure check the installation pipework for gas
soundness. In the United Kingdom check in accordance with the current edition of BS
6891. In the Republic of Ireland refer to the current edition of I.S. 813 “Domestic gas
installations”.
10.2.1 Lighting the burner.
Before lighting the burner ensure that any protective film has been removed from
the firefront and fascia.
1. Depress the control knob and rotate it slowly anticlockwise to the pilot ignition
position. A 'click' will be heard as the integral piezo operates. A spark should be seen
between the electrode and pilot tip.
2. Turn the control knob clockwise to the 'Off' position. Repeat this operation until a
flame appears at the pilot. There may be a delay before the pilot lights due to air being
purged from the system. When a flame appears at the pilot keep the control knob
depressed and hold the pilot ignition position for five seconds. When the control knob is
released the pilot flame should remain lit.
10.2.2 Operating the burner.
1. When the pilot burner is operating properly, gradually turn the control knob anti-
clockwise to 'HIGH' (Depress the knob slightly to get past the pilot ignition position).
The main burner should now light. Depress the control knob slightly to release from the
'HIGH' position and turn back (clockwise) to 'LOW'. While turning, the burner flames
should gradually become lower but remain alight. Depress the control knob slightly to
release from the 'LOW' position and turn back (clockwise) to the Pilot ignition position.
The main burner should extinguish but the pilot should remain alight. Depress the
control knob slightly and turn back (clockwise) to turn OFF.
This will extinguish the pilot.
If the above checks are satisfactory, continue with the installation. If not, check the
control and ignition circuitry and components.
10.3 Inlet pressure check.
The appliance is pre-set to give the correct heat input at the inlet pressure shown in
section 2 of this manual. No adjustment is necessary.
1.
Check the inlet pressure by fitting a pressure gauge at the test point. The test point is
on the inlet ‘T’ connector (See figure 18). Check the pressure with the appliance alight
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INSTALLER GUIDE

and set at maximum output.
2. After checking, turn off the appliance. Remove
the pressure gauge and replace the test point
sealing screw.
3. Relight the appliance. Turn to the maximum
output position and test around the sealing screw
for gas soundness with a suitable leak detection
fluid.
10.4 Fitting the burner tray trim.
1. Fit the burner tray trim over the front rim of the
burner tray. Push the trim fully down (See
figure 19).
11. CERAMIC FUEL EFFECT INSTALLATION
The installer and owner guide for the ceramic fuel effect is supplied with the ceramic
fuel effect. It is important that the fitting guide for the ceramic fuel effect be placed
inside or attached to this guide and handed to the customer following completion of the
‘Final review’ section.
12. FITTING THE LOWER FIREFRONT
1. Place the lower firefront on top of the hearth centrally between the fascia.
2. On models with a two piece firefront place the lower front cover casting / ash pan
below the front casting. For the ‘Coast’ model see figure 20.
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INSTALLER GUIDE
Figure 19. Burner tray trim
Figure 18. Pressure test point