Valor 347 Helmsley Instruction Manual

© GDC Group Limited 2014.
08/52376/0
Model 347
RAD ANT / CONVECTOR GAS F RE
Fitted with the following fascia
Helmsley
NSTALLER: 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, operated
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).
n the Republic of reland
Telephone [phone].

GDC Group Limited
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, GDC Group Ltd., Millbrook House, Hedge End,
Southampton, SO30 2DF.
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, GDC Group Ltd., Millbrook House, Hedge End, Southampton, SO30 2DF
www.valor.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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© GDC Group Limited 2014.
THIS APPLIANCE IS FOR USE WITH NATURAL GAS (G20).
UNDER NO CIRCUMSTANCES IS THIS FIRE TO BE CONVERTED TO LPG.
AN LPG KIT DOES NOT EXIST FOR THIS GAS FIRE.
THIS APPLIANCE IS SUITABLE ONLY FOR INSTALLATION IN THE UNITED
KINGDOM (GB) AND THE REPUBLIC OF IRELAND (IE).

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 SO 9001 quality system accepted
by the British Standards nstitute.
The Highest Standards
Valor Fires is a member of SBG and HH C (Heating and Hot water ndustry Council)
that work to ensure high standards of safety, quality and performance.
Careful Installation
This gas fire must be installed by a competent GAS SAFE REG STER engineer
(CORG or GAS SAFE REG STER engineer outside of UK) in accordance with our
installer guide and should not be fitted directly on to a carpet or floor of combustible
material.
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FOR OWNER GU DE SEE PAGES 29 TO 44
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CONTENTS
Section Heading Page
INSTALLER GUIDE - 28
OWNER GUIDE 29 - 3
1. SAFETY 7
2. LIST OF ACCESSORIES 7
3. APPLIANCE DATA AND EFFICIENCY 8
3.1 Appliance data. 8
3.2 Efficiency. 8
. GENERAL INSTALLATION REQUIREMENTS 9
4.1 Regulations, Standards and Law. 9
4.2 Ventilation. 10
4.3 The Atmosphere sensing device (ASD). 10
4.4 Room considerations. 10
4.5 Chimney preparation. 11
4.6 Fireplace preparation. 11
4.7 Fireplace clearances. 12
4.8 The Flue spigot. 13
4.9. The hearth. 14
4.10 nstallation options. 14
4.10.1 Conventional fireplace. 14
4.10.2 Precast flues. 14
4.10.3 Wall mounting to conventional or pre-cast flues. 15
4.10.4 Metal flue box. 16
4.11 Flues. 16
5. PRE-INSTALLATION PREPARATION 17
5.1 Unpacking. 17
5.2 Appliance preparation. 17
5.3 Fitting the battery to electronic ignition model 18
5.4 Checking the ignition 18
5.4.1 Electronic ignition 18
5.5 Fireplace flue pull. 18
5.6 Fit the closure plate. 19
6. APPLIANCE INSTALLATION 20
6.1 nstalling to a hearth. 20
6.2 Wall mounting. 20
6.3 Gas supply connection. 20
6.4 Radiants installation. 20
6.5 Flue restrictor adjustment. 21
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Continued on next page

7. CONTROL AND PRESSURE CHECKS 22
7.1 Check control settings. 22
7.2 Flame supervision and spillage monitoring system. 22
7.3 Check reference pressure. 23
8. FASCIA FITTING 23
9. SPILLAGE CHECK 2
10. FINAL REVIEW 25
11. SERVICING AND PARTS REPLACEMENT 26
11.1 To replace radiant(s). 26
11.2 To remove the fascia. 27
11.3 To replace the pilot unit. 27
11.4 To remove the complete burner module, pipes and pilot. 28
11.5 To grease the gas tap. 28
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CONTENTS (Continued)
Section Heading Page

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 15.0 kg.
-One person should be sufficient to lift the fire. f 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. t 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.
This appliance does not contain any component manufactured from asbestos or
asbestos related products.
2. LIST OF ACCESSORIES
Description Part number
Spigot extension 0595191
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3. APPLIANCE DATA AND EFFICIENCY
3.1 Appliance data.
The appliance information label is on the inner face of the back panel at the lower left
hand side. t is visible when the fascia is removed.
3.2 Efficiency.
The efficiency of this appliance has been measured as specified in BS 7977 - 1 and
the result is as below:
Model Efficiency % (Gross)
347 Helmsley 73
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.
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.
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Gas Natural (G20)
nlet Pressure 20mbar
nput - Max. (Gross) 5.5 kW (18,767 Btu/h)
nput - Min. (Gross) 1.57W (5,357 Btu/h)
Burner Test Pressure (Cold) 17.95 + 0.75mbar (7.2 + 0.3in w.g.)
Gas Connection 8mm pipe
Burner njector - Upper (Centre Radiants) Cat 28 - 170
Burner njector - Lower (Outer Radiants) Cat 28 - 170
Pilot & Atmosphere Sensing Device OPNG9093
gnition Electronic (Mounted on gas valve)
Aeration Non-adjustable
Gas Conversion factor from net to gross efficiency
Natural Gas 0.901

. GENERAL INSTALLATION REQUIREMENTS
.1 Regulations, Standards and Law.
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 ( nstallation and Use) Regulations. Failure to install the appliance correctly
could lead to prosecution. GAS SAFE REG STER and CORG require their members
to work to recognised standards.
n 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 - Specification for metal flue boxes for gas-fired appliances not
exceeding 20kW.
BS EN 1806 - Chimneys – Clay/ceramic flue blocks.
BS 5440 Part 1 - Flueing and ventilation for gas appliances of rated input not
exceeding 70 kW net (1st, 2nd and 3rd family gases).
Specification for installation of gas appliances to chimneys and
for maintenance of chimneys.
BS 5440 Part 2 - nstallation and maintenance of flues and ventilation for gas
appliances of rated input not exceeding 70 kW net (1st, 2nd
and 3rd family gases).
BS 6891 - nstallation of low pressure gas pipework of up to 35mm (R1
¼) in domestic premises (2nd family gas) - specification.
BS 1251 - Fireplace components.
BS EN 1856 Part 1 - Chimneys – Requirements for metal chimneys.
BS 5871 Part 1 - Specification for the installation and maintenance of gas fires,
convector heaters, fire/back boilers and decorative fuel effect
gas appliances. Gas fires, convector heaters, fire/back boilers
and heating stoves (2nd and 3rd family gases).
BS EN 1858 - Chimneys – Components – Concrete flue blocks.
BS EN 15287 Part 1 - Chimneys. Design, installation and commissioning of
chimneys. Chimneys for non-room sealed heating appliances.
-n England and Wales, the current edition of the Building Regulations issued by
the Department of the Environment and the Welsh Office.
-n Scotland, the current edition of the Building Standards (Scotland) Regulations
issued by the Scottish Executive.
-n Northern reland, the current edition of the Building regulations (Northern
reland) issued by the Department of the Environment for Northern reland.
-n the Republic of reland the installation must be carried out by a competent
person and installed in accordance with:
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a) The current edition of S 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.
.2 Ventilation.
Normal adventitious ventilation is usually sufficient to satisfy the ventilation
requirements of this appliance. n GB reference should be made to BS 5440 Part 2
and in E reference should be made to the current edition of S 813 “Domestic gas
nstallations” which makes clear the conditions that must be met to demonstrate that
sufficient ventilation is available.
.3 The Atmosphere sensing device (ASD).
The appliance is fitted with an A.S.D (Atmosphere sensing device). f 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 manufacturer’s
replacement parts should be fitted.
. Room considerations.
4.4.1 The appliance must not be installed in any room, which contains a bath, or
shower or where steam is regularly present.
4.4.2 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. f the fan is likely to affect the appliance, the appliance must not be
installed unless the fan is permanently disconnected.
4.4.3 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.
.5 Chimney preparation.
4.5.1 f 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.
4.5.2 Any chimney dampers or restrictors should be removed. f removal is not
possible they must be fixed in the open position.
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.6 Fireplace preparation.
4.6.1 The appliance can be fitted to a purpose made proprietary class “O” 150°C
surround.
4.6.2 f the fireplace opening is an underfloor draught type, it must be sealed to stop
any draughts.
4.6.3 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.
4.6.4 f the fire is to be fitted against a
wall with combustible cladding, the
cladding must be removed from the area
shown in figure 1.
4.6.5 The space between the fireplace
front face and the back of the fascia
must not be filled in.
4.6.6 f 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.
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Figure 1. Area to be free of combustible
cladding

.7 Fireplace clearances.
4.7.1 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 48mm at either side (See figure 2).
Although no side clearance is necessary to non-combustible surfaces we recommend
a 100mm clearance for service access to the fascia side fixings.
4.7.2 Allow a minimum clearance of 95mm 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,
the minimum clearance must be as below.
• For a shelf up to 150mm deep: Minimum clearance = 95mm.
• For a shelf deeper than 150mm: 95mm + 12.5mm for every 25mm depth over
150mm (See Figure 3).
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Figure 2. Dimensions and clearances

.8 The Flue spigot.
4.8.1 The flue spigot and any spigot extension
must be capable of passing through the closure
plate by at least 38mm with a minimum clearance
of 50mm between its 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
downwards measured from the bottom of the flue
spigot (See figure 4).
4.8.2 A spigot extension is available (Valor Fires
part number 0595191). When fitted this shall
extend through the closure plate for at least 38mm
and have a minimum clearance of 50mm from the
end to any surface.
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Figure 3. Shelf clearances
Figure 4. Conventional fireplace
catchment space.

.9. The hearth.
The appliance must be mounted on a non-combustible hearth except when the
conditions in section .10.3 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.
.10 Installation options.
n the United Kingdom, as supplied, this appliance can be installed in the following
situations:
4.10.1 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 ( nclusive of sealing tape) will leave the sealing tape and closure plate visible
above the appliance.
4.10.2 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 1858 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 storeys high but not less than 3m vertical height
and be correctly terminated. No mortar fangs between the blocks should be extruded
into the flue way. f 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.
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Conventional Fireplace
Width Height
Max. 440mm
Min. 305mm
Max. 610mm*
Min. 525mm

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 ( nclusive 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.
4.10.3 Wall mounting to conventional or pre-cast flues.
The wall opening must be within the following dimensions: The minimum height
figures shown reflect that an extra 50mm is required above the finished floor level
when wall mounting (See figure 2).
*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
( nclusive 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 4.
Wall mounting to a pre cast flue.
mportant: f the base of the opening is above the finished floor level, the base 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.
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Precast flue
Width Height
Max. 440mm
Min. 305mm
Max. 610mm(a)
Min. 525mm(b)
Wall mounting
Width Height
Max. 440mm
Min. 305mm
Max. 610mm*
Min. 575mm

4.10.4 Metal flue box.
The appliance can be installed to a metal flue box conforming to BS 715 Section 6
(For gas fires to BS 7977-1) having a minimum internal depth of 165mm.
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 ( nclusive of sealing tape) will leave the sealing tape and closure plate visible
above the appliance.
n addition the fire has been tested for use with a ‘Rite Vent’ or ‘Selkirk’ Flue Gas
Collector Box. The opening dimensions may differ from those shown above. t is
MPORTANT that each installation passes a properly conducted Spillage test as in
section 9.
.11 Flues.
The following flues are suitable:
- 225mm x 225mm conventional brick flue.
f 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 1806, BS EN 1858 or B.S
1289.
- A flue pipe with a minimum diameter of 127mm. See BS EN 15287-1 for suitable
materials. Metal flue pipes must comply with BS EN 1856 part 1. See section
4.10.4 of this guide for flue box opening sizes.
- 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 B, the minimum equivalent height of the
flue shall be 2.0m of 125mm dia. flue pipe.
- The flue must be clear of any obstruction and its base must be clear of debris.
- The flue must be completely sealed so that combustion products do not come into
contact with combustible materials outside the chimney.
- The flue must serve only one fireplace.
- Proprietary terminals must comply with BS EN 1858, BS EN 1806 or BS 1289 and
older versions of BS 715. Any terminal or termination must be positioned in
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Metal Flue Box.
Width Height
Max. 440mm
Min. 380mm
Max. 610mm*
Min. 525mm

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.
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.
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.
5.2 Appliance preparation.
1. Stand the fire upright.
2. Remove the two transit screws from near the top
of the back panel wings (See figure 5).
3. Remove the control knob by pulling clear of the
gas tap spindle.
4. Remove the two fascia retaining screws located at
the front of the fascia near the bottom corners.
5. Lift the fascia up and forward to clear the rear top
location. Store in a safe place.
6. Remove the radiant pack by gently lifting and
pulling forward from the bottom.
7. Remove the cardboard strip from the top of the
burner area.
8. Remove any protective film from all the bright trims.
9. f 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 4.
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Figure 5. Transit screws.

5.3 Fitting the battery to electronic ignition model.
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. Checking the ignition.
5.4.1 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. f there
are no sparks or incorrect tracking, check the spark gap
between the electrode wire and thermocouple tip (See
figure 6).
f the spark gap is correct, check the ignition wiring.
5.5 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. f there is not a
definite flow warm the flue for a
few minutes and repeat the smoke
pellet test. f 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.
5.6 Fit the closure plate.
The spigot opening in the closure
plate has two ‘flange’ sections.
Flange 1 is to be left as supplied.
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Figure 7. Closure plate.
Figure 6. Pilot spark gap
Note: Pilot style may vary)

Fold Flange 2 along the perforated line. 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.
The closure plate dimensions will now be as
shown in figure 7.
5.6.1 Hearth mounting. (See figure 8).
The closure plate must be fitted and sealed to
the hearth and fireplace opening using a
suitable heat resistant material. f 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.
5.6.2 Wall mounting.(See fig 9).
The closure plate must be fitted and sealed to
the hearth and fireplace opening using a
suitable heat resistant material. f 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 fig 9.
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. f there is a definite flow
continue with the installation. f
not check the fitting of the
closure plate. The fireplace flue
pull check described in section
5.3 should have confirmed that
the fireplace itself is satisfactory.
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Figure 9. Closure plate when wall mounting.
Figure 8. Closure plate when hearth
mounting.

6. APPLIANCE INSTALLATION
6.1 Installing to a hearth.
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 38mm.
2. Level the fire by loosening the lock nuts and turning the levelling 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 10.
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 no.10 wall
plugs. 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 for rear
connection. Seal the gap between the cut-
out and the supply pipe.
Pressure check the installation pipework for gas soundness. n the United Kingdom
check in accordance with the current edition of BS6891. n the Republic of reland
refer to the current edition of S 813 “Domestic gas installations”.
6. 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.
6.5 Flue restrictor adjustment.
(See figure 11).
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. t 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 B).
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Figure 10. Wall fixing holes