Valor Fires 347 Instruction Manual

5112105/03
Model 347
RADIANT / CONVECTOR GAS FIRE
Fitted with one of the following fascia
Firelite 4 Oxysafe or
Regency 4 Oxysafe
(GC No. 32-032-62)
INSTALLER: Please leave this guide with the owner
INSTALLATION AND OWNER 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
Valor Fires Technical Helpline will
be pleased to help.
Telephone [phone] (National
call rates apply in the United
Kingdom).
In the Republic of Ireland
Telephone [phone].
© Baxi Heating U.K. Limited 2008.

Baxi Heating U.K. Limited 2008.
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, The Wyvern Business
Park, Stanier Way, Derby, DE21 6BF.
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.
Valor Fires, 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
THIS APPLIANCE IS FOR USE WITH NATURAL GAS (G20).
WHEN CONVERTED USING CONVERSION KIT NUMBER 05347F1 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. Limited 2008. Page 2

Safety First.
Valor Fires fires are CE Approved and designed to meet the appropriate British
Standards and Safety Marks.
Quality and Excellence.
All Valor Fires 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
Valor Fires is a member of SBGI and HHIC (Heating and Hot water Industry Council)
that work to ensure high standards of safety, quality and performance.
Careful Installation
Valor Fires 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 2008. Page 3

Page 4
INSTALLER GUIDE
© Baxi Heating U.K. Limited 2008.
INSTALLER GUIDE
FOR OWNER GUIDE SEE PAGES 27 TO 39

CONTENTS
Section Heading Page
INSTALLER GUIDE 4 - 26
OWNER GUIDE 27 - 39
1 SAFETY 6
2 LIST OF ACCESSORIES 6
3 APPLIANCE DATA 7
4 GENERAL INSTALLATION REQUIREMENTS 8
5 PRE-INSTALLATION PREPARATION 14
5.1 Unpacking. 14
5.2 Fireplace flue pull. 15
5.3 Appliance preparation. 15
5.4 Fitting the battery to electronic ignition models. 15
5.5 Checking the ignition. 15
5.5.1 Manual ignition. 15
5.5.2 Electronic ignition. 16
5.6 Fitting the closure plate. 16
6 APPLIANCE INSTALLATION 18
6.1 Installing to a hearth. 18
6.2 Wall mounting. 18
6.3 Gas supply connection. 18
6.4 Radiants installation. 18
6.5 Flue restrictor adjustment. 19
7 CONTROL AND PRESSURE CHECKS 20
7.1 Check control settings. 20
7.2 Flame supervision and spillage monitoring system. 20
7.3 Check reference pressure. 21
8 FASCIA FITTING 21
9 SPILLAGE CHECK 22
10 FINAL REVIEW 23
11 SERVICING AND PARTS REPLACEMENT 24
11.1 To remove the fascia. 24
11.2 To replace radiant(s). 24
11.3 To replace the pilot unit. 24
11.4 To remove the piezo generator (Manual ignition models). 25
11.5 Note for electronic ignition. 25
11.6 To remove the complete burner module, pipes and pilot. 25
11.7 To grease the gas tap. 26
INSTALLER GUIDE
Page 5
© Baxi Heating U.K. Limited 2008.

1. SAFETY
Installer
Before continuing any further with the installation of this appliance please read
the following guide to manual handling.
The lifting weight (kg) of this appliance is as below:
Heat Engine Fascia
9.35 5.05
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. LIST OF ACCESSORIES
Description Part number
Flue Spigot extension 0595191
LPG Conversion kit 05347F1
INSTALLER GUIDE
© Baxi Heating U.K. Limited 2008. Page 6

3. APPLIANCE DATA
*When converted using kit 05347F1.
The appliance information label is on the inner face of the back panel at the lower left
hand side. It is visible when the fascia is removed.
This appliance does not contain any component manufactured from asbestos or
asbestos related products.
The efficiency of this appliance has been measured as specified in BS 7977 - 1 and
the result is as below:
Model Efficiency % (Gross)
347 Firelite and Regency 71
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.
INSTALLER GUIDE
Gas Natural (G20) Propane (G31) *
Inlet Pressure 20mbar 37mbar
Input - Max. (Gross) 5.6kW (19,100 Btu/h) 5.3kW (18,084 Btu/h)
Input - Min. (Gross) 1.57W (5,357 Btu/h) 2.35kW (8,018 Btu/h)
Burner Test Pressure (Cold) 17.95 + 0.75mbar
(7.2 + 0.3in w.g.)
36.4 ± 0.75 mbar
(14.85 ± 0.3in w.g.)
Gas Connection 8mm pipe 8mm pipe
Burner Injector - Upper
(Centre Radiants) Cat 28 - 185 Size 80
Burner Injector - Lower
(Outer Radiants) Cat 28 - 185 Size 80
Pilot & Atmosphere Sensing
Device OPNG9093 OPLPG9222
Ignition Integral twin spark piezo
(Mounted on gas valve)
Integral twin spark piezo
(Mounted on gas valve)
Aeration Non-adjustable Non-adjustable
© Baxi Heating U.K. Limited 2008. Page 7

The conversion 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.
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. 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 EN 1806 which replaces BS 1289 Part 2
BS 5440 Part 1
BS 5440 Part 2
BS 6891
BS 1251
BS EN 1856 Part 1 which replaces BS 4543 Part 2
BS 5871 Part 1
BS EN 1858 which replaces BS 1289 Part 1
BS 6461 Part 1
 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 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
INSTALLER GUIDE
Gas Conversion factor from net to gross efficiency
Natural Gas 0.901
LPG 0.921
© Baxi Heating U.K. Limited 2008. Page 8

Where no specific instructions are given, reference should be made to the relevant
British Standard Code of Practice.
4.2 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.
4.3 Any chimney dampers or restrictors should be removed. If removal is not
possible they must be fixed in the open position.
4.4 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
4.5 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.
4.6 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 50mm at either side (See figure 1). No
side clearance is necessary to non-combustible surfaces.
INSTALLER GUIDE
Figure 1. Dimensions and clearances
© Baxi Heating U.K. Limited 2008. Page 9

4.7 The appliance must not be installed in any room, which contains a bath, or
shower or where steam is regularly present.
4.8 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.
4.9 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 genuine
manufacturers’ replacement parts should be fitted.
4.10 Allow a minimum clearance of 90mm from the top surface of the appliance
fascia to the underside of any shelf whether it is made from combustible or non-
combustible materials. This clearance is necessary to allow the fascia to be lifted off
for servicing and also allows the owner sufficient access to operate the control knob.
For a shelf made from wood or other combustible materials deeper than 150mm,
add 12.5mm to the clearance for every 25mm of additional shelf depth (See graph 1).
Graph 1. Shelf clearances
INSTALLER GUIDE
© Baxi Heating U.K. Limited 2008. Page 10

4.11 in the United Kingdom, as supplied, this appliance can be installed in the
following situations: -
4.11.1 The appliance must be mounted on a non-combustible hearth except when
the conditions in section 4.11.4 are met (N.B. conglomerate marble hearths are
considered as non-combustible). The hearth must be at least 680mm wide x 300mm
deep. 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 appliance can be fitted to a purpose made proprietary class “O” 150°C surround.
Note: A spigot extension is available (Valor Fires part number 0595191). When fitted
this shall extend through the closure plate for at least 15mm and have a minimum
clearance of 50mm from the end to any surface.
4.11.2 Conventional fireplace
The fireplace opening must be within the following dimensions:
*The total height of the closure plate is 660mm and will accommodate a maximum
opening height of 650mm (This allows a 10mm overhang). Heights above
620mm (Inclusive of sealing tape) will leave the sealing tape and closure plate visible
above the appliance.
4.11.3 Precast flues
The appliance can be installed to a fireplace that has a properly constructed precast
concrete or clay flue block system conforming to BS EN 1806 or BS1289. The
appliance is suitable for installations conforming to older versions of BS1289 as well
as the current standards. 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 chimney should be one or two storey high but not less than 3m vertical height
and be correctly terminated. No mortar fangs between the blocks should be extruded
into the flueway. If raking blocks are used, they must be fitted in accordance with the
manufacturer’s instructions. Mortar must not be allowed to drop down and accumulate
in the raked positions.
INSTALLER GUIDE
Width Height
Max. 440mm
Min. 305mm
Max. 610mm*
Min. 525mm
© Baxi Heating U.K. Limited 2008. Page 11

The fireplace opening must be within the following dimensions:
(a) The total height of the closure plate is 660mm and will accommodate a
maximum opening height of 650mm (This allows a 10mm overhang). Heights above
620mm (Inclusive of sealing tape) will leave the sealing tape and closure plate visible
above the appliance.
(b) Any opening visible below the appliance may be closed in.
4.11.4 Wall mounting to a conventional or pre-cast flue.
The minimum height figures shown in the below table reflect that an extra 50mm
(minimum) is required above the finished floor level when wall mounting (See figure
1). When the additional 50mm (minimum) is adhered to them the appliance can be
fitted without a hearth.
The wall opening must be within the following dimensions:
*The total height of the closure plate is 660mm and will accommodate a maximum
opening height of 650mm (This allows a 10mm overhang). Heights above 620mm
(Inclusive of sealing tape) will leave the sealing tape
and closure plate visible above the appliance .
Wall mounting to a conventional fireplace.
Any opening visible below the appliance may be
closed in but the depth of the catchment space within
the wall opening must be as shown in figure 2.
Wall mounting to a pre cast flue.
Important: If the base of the opening is above the
finished floor level it must be a maximum 350mm
from the finished floor level. This will ensure that the
air relief hole in the closure plate is not covered or
reduced.
4.11.5 Metal flue box
The appliance can be installed to a metal flue box
conforming to BS715 (For gas fires to BS5258: Part
5) or having a minimum internal depth of 165mm.
Width Height
Max. 440mm
Min. 305mm
Max. 610mm*
Min. 575mm
Figure 2. Conventional
Fireplace catchment space
INSTALLER GUIDE
Width Height
Max. 440mm
Min. 305mm
Max. 610mm(a)
Min. 525mm(b)
© Baxi Heating U.K. Limited 2008. Page 12

Incombustible mineral wool insulation of not less than 50mm thickness must be
applied to the top surface of the metal flue box.
The opening must be within the following dimensions:
*The total height of the closure plate is 660mm and will accommodate a maximum
opening height of 650mm (This allows a 10mm overhang). Heights above
620mm (Inclusive of sealing tape) will leave the sealing tape and closure plate visible
above the appliance.
4.12 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.
 A properly constructed precast flue conforming to BS EN 1858 or BS 1289.
 A flue pipe with a minimum diameter of 127mm. See BS 6461 Part 1 for suitable
materials. Metal flue pipes must comply with BS EN 1856. See section 4.11.5 of this
guide for flue box opening sizes.
4.12.1 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.
4.12.2 The flue must be clear of any obstruction and its base must be clear of
debris.
4.12.3 The flue must be completely sealed so that combustion products do not come
into contact with combustible materials outside the chimney.
4.12.4 The flue must serve only one fireplace.
4.12.5 Proprietary terminals must comply with BS EN 1858, BS EN 1806 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.
4.13 If the fireplace opening is an underfloor draught type, it must be sealed to
stop any draughts.
4.14 The flue spigot and any spigot extension must be capable of passing through
the closure plate by at least 15mm with a minimum clearance of 50mm between its
Width Height
Max. 440mm
Min. 380mm
Max. 610mm*
Min. 525mm
INSTALLER GUIDE
© Baxi Heating U.K. Limited 2008. Page 13

open end and the nearest obstruction.
There must also be a minimum clearance of 165mm between the back of the closure
plate and the back of the catchment space.
On conventional flues the catchment space below the flue spigot must extend at least
250mm downward measured from the bottom of the flue spigot (See figure 2).
4.15 The front of the fireplace should be flat over an area sufficient to ensure a good
seal with the closure plate. The flat surface should extend for a height equal to that of
the closure plate plus 20mm and for a width equal to that of the closure plate plus
40mm.
4.16 If the fire is to be fitted against a
wall with combustible cladding, the
cladding must be removed from the area
shown in figure 3.
4.17 The space between the fireplace
front face and the back of the fascia
must not be filled in.
4.18 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.
5. PRE-INSTALLATION PREPARATION
5.1 Unpacking.
This appliance is supplied completely assembled except for:-
 4 radiants which are in a cardboard pack inside the firebox.
 The closure plate
 Literature pack
 An olive & olive nut for gas line connection
 Battery (Only supplied with electronic ignition models)
Remove all the items carefully to prevent damage. Some items may be contained in
the packaging fitments - Examine the packaging carefully before discarding. Check
that all the items are present and undamaged.
Figure 3. Area to be free of combustible
cladding
INSTALLER GUIDE
© Baxi Heating U.K. Limited 2008. Page 14

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.
5.3 Appliance preparation.
5.3.1. Stand the fire upright.
5.3.2. Remove the two transit screws from near the top of the back panel wings (See
figure 4).
5.3.3. Remove the control knob by pulling clear of
the gas tap spindle.
5.3.4. Remove the two fascia retaining screws
located at the front of the fascia near the bottom
corners.
5.3.5. Lift the fascia up and forward to clear the rear
top location. Store in a safe place.
5.3.6. Remove the radiant pack.
5.3.7. Remove any protective film from all the bright
trims.
5.3.8. If the fire is fitted to a recessed fireplace, an
extension flue spigot up to a maximum total length
of 125mm may be used. The extension must be a
tight fit over the flue spigot and be secured by two
self tapping screws. Note the minimum clearance required as shown in figure 2.
5.4 Fitting the battery to electronic ignition models.
1. At the front of the electronic spark generator there is a removable circular battery
cover. Unscrew the cover in an anticlockwise direction.
2. Remove any protective film from the battery and place into the generator. The
negative ( - ) terminal should go in first. The battery cover is marked with ( + ).
3. Screw on the cap.
5.5 Checking the ignition.
5.5.1 Manual ignition.
Before attempting to install, it is worth checking that the piezo electric spark ignition
system operates satisfactorily.
To initiate the spark, temporarily fit the control knob to the spindle. Depress the knob
and while keeping it depressed, slowly turn to the 1/IGN position. Two separate
Figure 4. Transit screws.
INSTALLER GUIDE
© Baxi Heating U.K. Limited 2008. Page 15

sparks should track from the electrode pin to the thermocouple tip. If there are no
sparks or incorrect tracking, check the spark gap
between the electrode wire and thermocouple tip (See
figure 5).
If the spark gap is correct, check the ignition wiring.
5.5.2 Electronic ignition.
Before attempting to install, it is worth checking that
the electronic spark ignition system operates
satisfactorily. To initiate the spark, temporarily fit the
control knob to the spindle. Apply pressure to the top of
the control knob spindle. Sparks should be generated
between the electrode and thermocouple tip on the
pilot unit. If there are no sparks or incorrect tracking,
check the spark gap between the electrode wire and
thermocouple tip (See figure 5).
If the spark gap is correct, check
the ignition wiring.
5.6 Fitting the closure plate.
The spigot opening in the closure
plate has two ‘flange’ sections.
Fold along the perforated line of
Flange 2. The dimensions of the
closure plate will be as in figure
6.
The closure plate has an
opening at the bottom for a
central gas feed pipe. The gap
between the pipe and this
opening should be sealed with
tape after connection. If a
central feed pipe is not
required the opening should
be completely sealed with
tape.
5.6.1 Hearth mounting.
(See figure 7).
The closure plate must be fitted and sealed to the hearth and fireplace opening using
a suitable heat resistant material. If necessary cut the closure plate but make sure
that it overlaps the fireplace opening sufficiently to allow satisfactory sealing. Make
sure that the square air relief opening is fully within the fireplace opening.
Figure 6. Closure plate.
INSTALLER GUIDE
Figure 5. Pilot spark gap
© Baxi Heating U.K. Limited 2008. Page 16

5.6.2 Wall mounting
(See figure 8).
The closure plate must be fitted and
sealed to the hearth and fireplace
opening using a suitable heat resistant
material. If necessary cut the closure
plate but make sure that it overlaps the
fireplace opening sufficiently to allow
satisfactory sealing. Make sure that the
square air relief opening is fully within
the fireplace opening.
The bottom of the appliance must be at
least 50mm above any carpet or other
floor covering. To achieve this, the
bottom of the flue spigot opening must
be at least the minimum dimension
shown in figure 8.
5.6.3 Check the flue pull with closure
plate fitted by applying a lighted match
or smoke match to the flue spigot
opening in the closure plate
and observe the smoke. If
there is a definite flow
continue with the installation.
If not check the fitting of the
closure plate. The fireplace
flue pull check described in
section 5.2 should have
confirmed that the fireplace
itself is satisfactory.
INSTALLER GUIDE
Figure 8. Closure plate for wall mounting.
Figure 7. Closure plate for hearth mounting.
© Baxi Heating U.K. Limited 2008. Page 17

6. APPLIANCE INSTALLATION
6.1 Installing to a hearth.
6.1.1 Place the fire centrally on the hearth making sure that the spigot lines up with
the spigot hole in the closure plate. Gently slide the appliance into place being
careful not to scratch the hearth. The spigot must enter the closure plate to a
depth of at least 15mm.
6.1.2 Level the fire by loosening the lock nuts and turning the leveling screws in the
feet up or down as required while they bear on the hearth. When the fire is level and
square to the wall, retighten the lock nuts.
6.2 Wall mounting.
The fixing hole positions in relation to the
flue spigot opening are shown in figure 9.
Mark these positions on the wall. The
positions can alternatively be marked by
placing the fire in position and marking the
wall through the holes in the back panel.
Drill and plug the holes using a suitably
sized masonry drill bit for the wall plugs
supplied. Place the fire in position and
secure with four no.10 x 2in. wood screws.
6.3 Gas supply connection.
8mm rigid tubing must be used to connect
the gas supply to the appliance. An olive
and nut are provided for connection to the
inlet “T” connector on the appliance. The
connector can be rotated to allow
connection from either side or the rear. The connector includes a valve for isolating
the gas supply.
The closure plate has a cut-out in the base for rear connection. Seal the gap between
the cut-out and the supply pipe.
Pressure check the installation pipework for gas soundness. In the United Kingdom
check in accordance with the current edition of BS6891. In the Republic of Ireland
refer to the current edition of IS 813 “Domestic gas installations”.
6.4 Radiants installation.
Important: Fit the radiants ensuring that their rear face rests against the horizontal
ribs in the rear panel. There will be a small gap between their bottom front edges and
the retaining channel at the front of the radiant box.
INSTALLER GUIDE
Figure 9. Wall fixing holes
© Baxi Heating U.K. Limited 2008. Page 18

6.5 Flue restrictor adjustment.
(See figure 10).
The appliance has an integral adjustable flue
draught restrictor. This is supplied set in the
fully open (unrestricted) position and in most
cases no adjustment should be necessary. It
can be reset to a fully restricted position if the
flue draught is excessive. The restrictor must
remain in its fully open position if the flue
has an equivalent height of 4m or less (as
calculated in accordance with BS5440: Part
1 Appendix A). Generally we recommend the
restrictor is NOT fitted where a precast flue
is used, however, certain flues may work
sufficiently to warrant its use. There may
however, be circumstances where fitting the
restrictor causes the fire to fail the spillage
test. In such cases the restrictor will have to
be re-opened. After opening conduct the
spillage check again.
To close the restrictor:
1. Loosen the screw situated behind the cut-out in the black upper heat shield. Do not
fully remove the screw.
2. Push the restrictor firmly down as far as it will go. The top of the slot in the
restrictor bracket should touch the screw.
3. Fully tighten the screw.
There may be certain circumstances where closing the restrictor causes the fire to fail
the spillage test (See section 9). In such cases the restrictor will have to be reopened.
Figure 10. Flue restrictor adjustment
INSTALLER GUIDE
© Baxi Heating U.K. Limited 2008. Page 19

7. CONTROL AND PRESSURE CHECKS
7.1 Check control settings.
7.1.1 If closed,open the isolating valve at the inlet ‘T’ connector.
7.1.2 To check the control positions temporarily place the fascia loosely over the
engine. Fit the control knob over the gas tap spindle.
7.1.3 Manual ignition: Depress the control knob and turn anticlockwise partially
towards the 1/IGN position until some resistance is felt. Keep depressed at this
position for a few seconds to purge air from the system then, while keeping it
depressed, slowly turn fully to the 1/IGN position. A spark should be generated at the
pilot while turning. The spark should ignite the pilot. If it does not, keeping the knob
depressed, continue to slowly turn the knob anticlockwise. A second spark should
be generated at the pilot while turning. This spark should ignite the pilot.
7.1.3 Electronic ignition: Depress the control knob slightly and turn
anticlockwise towards the 1/IGN position. Do not apply too much pressure as this will
cause resistance to be felt. Depress the control knob. Sparks should be generated at
the pilot. The sparks should ignite the pilot. If the pilot does not light, turn the control
knob back to the ‘OFF’ position and try again.
7.1.4 When pilot ignition has been achieved, keep the control knob depressed for
approximately ten seconds to allow the thermocouple probe to warm up and then
release it. If the pilot does not remain alight, ensure that the air has been purged, that
the pilot orifice is clear and that the thermocouple connections are sound. Replace
the pilot unit if necessary (See servicing section of this manual).
7.1.5 Check all the control settings. These are: -
7.2 Flame supervision and spillage monitoring system.
The pilot unit incorporates a system that will automatically shut off the gas supply if
the pilot flame goes out or if there is insufficient oxygen due to spillage or lack of
ventilation.
Check that the system operates properly as follows;
7.2.1 Light the appliance. Set at position 5 and leave for one minute.
7.2.2 Turn back to “OFF” to extinguish the pilot. Note the time when the pilot goes
out. Listen for a snap sound at the gas tap. Note the time when the sound is
heard. An electromagnetic valve shutting off the gas supply through the tap causes
this sound. The valve is located in the body of the tap. The valve should operate
INSTALLER GUIDE
Control Knob
Position Radiants Condition
2Centre radiants on low. Outer radiants off.
3Centre radiants fully on. Outer radiants off.
4Centre radiants fully on. Outer radiants on low.
5 All radiants fully on.
© Baxi Heating U.K. Limited 2008. Page 20