DGF Fabrications N1 Installation and operating instructions

DGF Fabrications;
Units 1-3 Vulcan St, Edward St Industrial Estate, Darlington. DL1 UL – Tel: [phone]; Fax: [phone]
1
GENERAL
• This fire must be installed by a properly qualified (in accordance with National and Local Regulations)
Installation Engineer.
• The connection of this appliance, and ventilation requirements (if any) are to be according to National
and Local Codes.
• The chimney should be swept before the appliance is installed.
• This appliance is intended for decorative purposes only.
• Do not throw rubbish on, or attempt to burn any materials on this appliance. Any debris or foreign
matter must be removed from the fire.
• The appliance should be serviced by a qualified engineer every 1 months.
LIGHTING & CONTROLLING THE FIRE – MANUAL FIRE
• Switching On/Ignition. Depress the control knob and turn counter clockwise. Gas will flow to the
pilot burner, the piezo igniter will give off a high voltage spark and the pilot burner will light. (more than
one attempt may have to be made on first igniting).
Keep the control knob depressed for approximately 10 seconds to heat up the thermocouple.
Turn the control knob fully counter clockwise to release gas to the main burner.
Adjust according as desired.
• Control of g s flow. Turning the control knob clockwise reduces the gas rate from the pre-set
maximum to the pre-set minimum setting. Turning between maximum and minimum does not actuate
the piezo igniter. The control valve can only be set on pilot by depressing the control knob and turning
it to the pre-selected pilot position.
• Switching off. Press the control knob and turn clockwise to off.
SPECIAL DECORATIVE GAS FIRE
INSTALLATION & MAINENANCE INSTRUCTIONS FOR
DGF FABRICATIONS GAS EFFECT FIRES (NATURAL GAS & LPG)
FOR DECORATIVE PURPOSES ONLY
NATURAL GAS MODELS: N1, N2, N3, N4
LPG MODELS: L1, L2, L3, L4
NOTICE TO INSTALLER
Please make sure that the user has read and understood these
instructions and that Record Data has been completed on page 3.
Please ensure this manual is then left with user in a safe place for the
entire life of the fire.

DGF Fabrications;
Units 1-3 Vulcan St, Edward St Industrial Estate, Darlington. DL1 UL – Tel: [phone]; Fax: [phone]
IMPORTANT NOTES
• This appliance is fitted with an oxygen depletion sensing system, which automatically shuts off the gas
supply to the main burner if the oxygen level in the room is depleted, due to a lack of air, or obstructed
flue that would lead to incomplete combustion of the gas.
• In the event that the fire shuts down due to any reason, attempt to restart it. If there is a continuing
problem, call in a properly qualified specialist engineer.
• There are no user replacement parts in this appliance.
• A minimum primary air inlet area of 100 square cm. is required for the safe and efficient operation of
fires N, 3N, 4N, L, 3L, & 4L. Failure to observe this instruction is potentially dangerous and will
possibly invalidate the guarantee.
• The chimney should be regularly checked to ensure that all the products of the combustion are entering
the flue and that there is no build up of soot. If there is, the appliance must be cleaned.
• Make sure the appliance is regularly checked and cleaned to ensure that all products of combustion are
correctly being expelled by the chimney flue and that there is no build up of soot.
CLEANING THE FIRE
When cold gently remove the simulated coal, pebbles, logs or driftwood one by one and remove soot deposits
with a soft brush.
The vermiculite granules should be level with the top edge of the burner tray. If the vermiculite granules are
replaced use only granules supplied by the manufacturer. A finer granule is not suitable.
Re-lay Aeration guards back over the air circulation holes in the burner tray.
Do not add more simulated coals, pebbles logs or driftwood than supplied.
Ensure that the pilot assembly cover is in place. (Not all decorative fires have them) and re-lay placing larger of
Coal, pebble log and driftwood as first layer to smallest. (see illustrated diagrams for guidance).

DGF Fabrications;
Units 1-3 Vulcan St, Edward St Industrial Estate, Darlington. DL1 UL – Tel: [phone]; Fax: [phone]
3
THIS APPLIANCE MUST BE INSTALLED AND SERVICED BY A PROPERLY QUALIFIED (IN
ACCORDANCE WITH LOCAL AND NATIONAL CODES) INSTALLATION ENGINEER.
IMPORTANT:
BEFORE PROCEEDING WITH THE INSTALLATION READ THESE INSTRUCTIONS CAREFULLY. THESE
INSTRUCTIONS SHOULD BE KEPT IN A SAFE PLACE FOR FUTURE REFERENCE AND SERVICING
DETAILS.
PRIOR TO INSTALLATION ENSURE THAT THE GAS TYPE AND PRESSURE ARE AS STATED ON THE
APPLIANCE DATA PLATE.
SIMULATED COALS, SIMULATED PEBBLES, SIMULATED LOGS AND SIMULATED DRIFTWOOD,
MANUFACTURED FROM REFRACTORY FIBRE, ARE SUPPLIED WITH THIS APPLIANCE. DO NOT USE
REAL COALS, PEBBLES, LOGS OR DRIFTWOOD, AS THIS IS DANGEROUS. IF THE SIMULATED COALS,
SIMULATED PEBBLES, SIMULATED LOGS, OR SIMULATED DRIFTWOOD NEED RENEWING PLEASE
OBTAIN SUITABLE REPLACEMENTS FROM MANUFACTURER.
RECORD DATA TO BE COMPLETED AND KEPT BY USER:
PLACE OF PURCHASE: ……………………………………………………………..
DATE:…………………………………………………………………………………
ADDRESS & TEL. NO.……………………………………………………………….
…………………………………………………………………………………………
MODEL NO. (Found on label on box) ………………………………………………
APPLIANCE SERIAL NO……………………………………………………..……….
INSTALLED BY:………………………………………………………………..………
CORGI REG. NO:………………………………………………………..……………

DGF Fabrications;
Units 1-3 Vulcan St, Edward St Industrial Estate, Darlington. DL1 UL – Tel: [phone]; Fax: [phone]
4
DATA FOR APPLIANCE
GAS TYPE: SEE DATA PLATE
FLAME SAFETY: OXYGEN DEPLETION AND FLAME FAILURE DEVICE STANDARD TO ALL
MODELS
IGNITION: PIEZO
INLET CONNECTION: 8MM COMPRESSION FITTING
NET HEAT INPUT: SEE DATA PLATE
N tur l G s Models (For G20 G s*)
Burner
Model
Flue Cl sses C tegory G s Kw Input Net High
Fl me
Burner
Pressure (High
Fl me)
1N Class 1 NV Model I H G 0 6.5 mbar
N Class I I H G 0 7.5 mbar
3N Class I I H G 0 8.5 mbar
4N Class I I H G 0 15. mbar
LPG Models (For G31 G s*)
Burner
Model
Flue Cl sses C tegory G s Kw Input Net
High Fl me
Burner
Pressure (High
Fl me)
1L Class 1 NV Model I H G31 6.5 mbar
L Class I I H G31 7.5 mbar
3L Class I I H G31 8. mbar
4L Class I I H G31 10. mbar

DGF Fabrications;
Units 1-3 Vulcan St, Edward St Industrial Estate, Darlington. DL1 UL – Tel: [phone]; Fax: [phone]
5
FLUE REQUIREMENTS
• Ensure that the builders opening, Flue & hearth for the appliance are constructed from non-combustible
materials and conform to National Regulations and Local Codes
All Models equi e a minimum flue diamete of 175mm o equivalent a ea (Class I)
• The flue MUST be free of any obstructions. Any dampers or restrictors MUST be removed or dampers
must be fixed in some way in the OPEN position.
• The chimney/flue should be swept prior to installation of the appliance.
• Ensure that only one fireplace is served.
• Ensure that the chimney/flue is continuous from inlet to terminal
• Ensure that the chimney/flue is structurally sound, so that combustion products do not come into
contact with combustible material outside the chimney.
• Ensure that there is a smooth tapered transition from the fireplace opening to the flue.
• If the appliance is to be installed under a canopy, or is open on both sides, great care must be taken to
ensure the configuration is correct. If in any doubt seek expert advice.
• CHECK FLUE PULL. Apply a smoke match to the flue opening at hearth level and observe smoke. If
there is a definite flow into the flue aperture, proceed with installation. If there is not a definite flow
into the flue aperture, preheat the flue for approximately 10 minutes and re-test. If there is still no
definite flow towards the flue aperture the flue may need attention and expert advice must be sort.
VENTILLATION
THE CONNECTION, VENTILLATION REQUIREMENTS (IF ANY) AND INSTALLATION OF THE
APPLIANCE MUST BE IN ACCORDANCE WITH NATIONAL REGULATIONS AND LOCAL CODES. IF IN
ANY DOUBT WITH REGARD TO ANY VENTILATION REQUIREMENTS SEED EXPERT ADVICE.
NOTE:
UK Model Numbers 1N, & 1L, do not require ddition l room ventil tion.
In EIRE ll Evolution fires require ddition l room ventil tion.
For ll other countries refer to N tion l Regul tions nd Loc l Codes.

DGF Fabrications;
Units 1-3 Vulcan St, Edward St Industrial Estate, Darlington. DL1 UL – Tel: [phone]; Fax: [phone]
6
APPLIANCE LOCATION
• This appliance must be hearth mounted in a builders opening or under an associated independent
canopy or a fireplace recess.
• On no account must this appliance be sited on combustible materials or carpets. It is not suitable for
combustible walls.
• When the appliance model has been supplied or specified with support legs, the appliance must be
screwed firmly to the hearth. In the case of freestanding basket models care should be taken to secure
the burner to the given basket. In most cases the burners for free standing models would have been
made to ensure a correct and tight fit.
• Ensure that the burner tray fits neatly into the intended location, and that you have easy access to the
controls
• Ensure there is adequate airflow to the underside of the fire (through the fire front or fret etc). This
airflow is required for cooling the underside of the fire and controls, as well as to provide the primary
combustion air.
• For fires with a manual control valve a minimum primary air inlet of 100sq cm is usually enough
• If firepl ce is properly designed nd inst lled the controls will not overhe t – it is the
inst ller’s responsibility to ensure th t the inst ll tion does not llow the controls to
overhe t.
HOLE IN THE WALL
Hole in the wall fires must be placed 100mm or more back from the front opening.
From the top of simulated coal, pebbles, logs or driftwood to top of opening must be no more than 450mm. if
this is the case canopy will need to be fitted.
No hearth is required if hole in wall is 50mm off floor level.

DGF Fabrications;
Units 1-3 Vulcan St, Edward St Industrial Estate, Darlington. DL1 UL – Tel: [phone]; Fax: [phone]
7
INSTALLATION OF THE APPLIANCE
Having ensured that the appliance application is correct and the requirements of the flue specification,
ventilation demands and the gas supply are correct, proceed with the installation and assembly as follows:-
1. In common with other gas appliances, dirt and debris in the gas system can block the valve and gas
injectors on this appliance, and faults caused by this are not covered by guarantee. If you suspect that
there is dirt and debris in the gas distribution system, fit a filter in the pipeline, before the gas valve.
. Do not use jointing compound on any compression fittings on the burner or the control valve. The use
of jointing compound on the compression fittings on this appliance will possibly invalidate the guarantee,
as it can get into the control valve mechanism and cause it to malfunction.
3. ensure that there is an isolating valve in the gas supply line near the appliance
4. Connect the gas supply pipe from the isolating valve to the gas inlet coupling fixed to the burner valve.
Make sure the supply pipe does not obstruct access to the controls.
5. Where there are fixing holes for the burner we recommend a secure fixing be made to the hearth or
fire basket.
6. Check that all the gas connections are correct. The appliance has been factory tested and pre-set.
7. where cast iron insets or sunken burners insets it is most important that they are properly back filled to
avoid the possibility of a negative pressure being obtained underneath the fire resulting in flames being
drawn down to the under sides of the burner. This is dangerous and can cause problems, ie.
Overheating of the controls and spoiling the flame pattern.
8. Open fires are a hazard; it is recommended that a guard be fitted to provide protection for children, the
elderly, the infirm or pets. (See National Regulations, if any).
9. Do not adjust or put out of action the spillage monitoring system (oxypilot), or change any of its part.
10. Use only original manufacturer’s parts if any replacements are needed.
11. if there is any concern about a pressure zone causing downdraught in certain wind conditions a suitable
chimney cowl should be fitted.
Much of the fires appearance is achieved by the placement of the simulated coal, pebbles logs or driftwood.
Please follow the following rules to achieve the best effect:
• Shake the vermiculite out of the bag gently into the burner tray. Do not use the dust from the bottom
of the bag. Fill all the tray to the top of the burner. Level the granules evenly across the burner tray.
Ensure the pilot assembly is cleared of vermiculite granules.
• Place Aeration guards supplied directly on top of the Vermiculite over the circular air vents.

DGF Fabrications;
Units 1-3 Vulcan St, Edward St Industrial Estate, Darlington. DL1 UL – Tel: [phone]; Fax: [phone]
8
L yout For Simul ted Co ls
As this is a Special Decorative Gas fire there is no exact pattern for coal layouts, however, the diagrams below
are intended purely as a GUIDE to illustrate the general principles. It is important to leave spaces of approx
15mm - 0mm between the coals to ensure good secondary aeration. Do not overload the fire, it will spoil not
only the appearance of the fire but may also cause the fire to soot. Do not put more than 3 layers of simulated
coals on fire. The small simulated coals can be laid along the front and in the corners of the fire. If different
sized, coals are supplied, start with large coals on base to smaller being at the top and going towards the back is
a typical layout. Depending on the size of the fire it might not be necessary to use all the simulated coals
supplied.
Run the fire for approximately 10 minutes, then if required adjust the simulated coals using suitable non
combustible tool until even flame achieved.
Guide:
Layer 1 (base layer)
Guide:
Layer (middle layer)
Guide:
Layer 3 (top layer)

DGF Fabrications;
Units 1-3 Vulcan St, Edward St Industrial Estate, Darlington. DL1 UL – Tel: [phone]; Fax: [phone]
9
L yout for Simul ted Pebbles
As this is a Special Decorative Gas fire there is no exact pattern for pebble layouts, however, the diagrams
below are intended purely as a GUIDE to illustrate the general principles. It is important to leave spaces of
approx 15mm - 0mm between the pebbles to ensure good secondary aeration. Do not overload the fire, it
will spoil not only the appearance of the fire but may cause the fire to soot. Do not put more than layers of
simulated pebbles on fire. Large pebbles going first to smaller being at the top. Depending on the size of the
fire it might not be necessary to use all the simulated pebbles supplied.
Run the fire for approximately 10 minutes and then, if required, adjust the simulated pebbles to give desired
effect using suitable non combustible tool.
Please note: Pebbles of a light colouring will soot very quickly. To clean, use a soft brush when fire is cold.
Guide:
Layer 1 (base layer)
Guide:
Layer (top layer)

DGF Fabrications;
Units 1-3 Vulcan St, Edward St Industrial Estate, Darlington. DL1 UL – Tel: [phone]; Fax: [phone]
10
L yout for Simul ted Logs/Driftwood
As this is a Special Decorative Gas fire there is no exact pattern for simulated logs/driftwood layouts, however,
the diagrams below are intended purely as a GUIDE to illustrate the general principles. Do not overload the
fire, it will spoil not only the appearance of the fire but also may cause the fire to soot. Do not put more than 3
layers of simulated driftwood/logs on fire. The larger of the simulated logs/driftwood are normally laid along
the bottom of the fire first then crossing in another direction on the second layer with smaller simulated
logs/driftwood and the third layer being more of the twigs from the logs/driftwood is a typical layout.
Depending on the size of the fire it might not be necessary to use all the simulated logs/driftwood supplied.
Run the fire for approximately 10 minutes and then, if required, adjust the simulated logs/driftwood to give
desired effect using a non-combustible tool.
Guide:
Layer 3 (top layer)
Guide:
Layer 1 (base layer)
Guide:
Layer (middle layer)

DGF Fabrications;
Units 1-3 Vulcan St, Edward St Industrial Estate, Darlington. DL1 UL – Tel: [phone]; Fax: [phone]
11
LIGHTING & CONTROLLING THE FIRE
Switching the on/off or ignition button:
Depress the control knob & turn counter clockwise. Gas will flow to the pilot burner, the piezo igniter will give
off a high voltage spark and the pilot burner will light. (More than one attempt may have to be made on first
lighting the fire) Keep the control knob depressed for approximately10 seconds to allow the thermocouple to
heat up.
Turn the control knob fully counter clockwise to release gas to the main burner and let go of the knob.
Control of g s flow.
Turning the control knob clockwise reduces the gas rate from the pre-set maximum to the preset minimum
setting. Turning between maximum and minimum does not actuate the piezo igniter. The control valve can
only be set on pilot by depressing the control knob and turning it to the pre-selected pilot position.
Switching off
Press control knob in and turn clockwise to OFF.
COMMISSIONING THE FIRE
1. Close all doors and windows and check operation of controls and burn for 5 minutes.
. Test for spillage of the flue products using a smoke match
3. Pass the lighted match along the top front edge, just inside the fire opening
4. If there is a small amount of spillage, run the fire for a further 10 minutes and re-test spillage
5. If there is still a small amount of spillage after the second test, disconnect the fire and seek expert
advice.
6. A smell may be experienced when the appliance is first commissioned. This is due to the new
components of the fire these odours will cease after the first few hours of burning.
DISPOSAL OF PACKAGING
Polythene bags used in the packaging of this appliance are a potential hazard to babies and young children
and must be disposed of IMMEDIATELY.
IMPORTANT NOTES
This appliance is fitted with an oxygen depletion sensing system which automatically shuts off the gas supply to
the main burner if the oxygen level in the room is depleted, due to lack of air or an obstructed flue
If the fire shuts down for any reason, attempt to re-start it. If there is a continuing problem, call in a specialist
engineer.
There are no user replacement parts in this appliance.

DGF Fabrications;
Units 1-3 Vulcan St, Edward St Industrial Estate, Darlington. DL1 UL – Tel: [phone]; Fax: [phone]
1
SPECIAL NOTES
1. This fire should be serviced every 1 months to ensure safe operation
. Spares are available from the manufacturer.
3. The fire may a odour/smell given off when first lit for the first few hours. This is due to the newness of
the components and will cease in a few hours of burning.
4. Chimney should be checked annually to ensure continuing clearance of combustion products.
5. Hands should be washed after handling coals
6. Open fires are a hazard; it is recommended that a guard be fitted to provide protection for children, the
elderly, the infirm and pets. (see National Regulations, if any)
7. All debris and soot should be cleaned with a soft brush when appliance is cold.
8. Regular checks must be made to check the fixed air supply (if applicable) is free of any obstructions.
Note. Seek expert advice if you are unsure of any points regarding the safe use of this appliance.
TROUBLE SHOOTING
No Sp rk
• Pilot light damaged, or too far away from electrode, or too close
• Electrode retaining lock nut has become too loose. Needs to be tightened
• Ignition lead has become detached from electrode. Re-connect it
• Electrode is damaged. Replace.
• Soot on the pilot assembly and shorting spark. Clean with soft brush
• Faulty ignition lead. Replace.
Sp rk is visible but pilot will not light
• Check there is gas getting to appliance
• Ensure that isolating valve or restrictor elbow is in the open position
• Valve inlet has become blocked with debris. Clean with soft brush.
• Pilot injector is blocked. Clean with soft brush.
Pilot Fl mes shortens / goes out, when m in burner is selected
• This indicates insufficient gas pressure to the appliance. Check for debris or obstruction.
• Check that there are no acute bends in the supply pipe and ensure that the correct diameter supply pipe
has been used.
• Check pressure setting.
• Note. If the appliance has been connected to a supply servicing another appliance the supply pipe may
not have sufficient capacity to serve both appliances. Seek advice.
• Make sure enough air can circle around the pilot.

DGF Fabrications;
Units 1-3 Vulcan St, Edward St Industrial Estate, Darlington. DL1 UL – Tel: [phone]; Fax: [phone]
13
Pilot goes out when knob is rele sed, or goes out t regul r interv ls
• Check that the thermocouple is not loose.
• Thermocouple is damaged and needs replacing.
• Thermocouple operated magnetic valve faulty – replace gas valve
Blue fl me
• It normally takes 0 minutes for the fire to reach correct working temperature, by which time most of
the blue flames should have gone. Continuous blue flame is caused by poor coal layout or excessive up
draught of the flue. Seek advice from your manufacturer.
• Poor gas pressure will also cause blue flame. Check gas pressure.
Poor Fl me picture
• Check gas pressure
• Ensure that there is no obvious obstruction to gas supply pipe
• Re-lay the simulated coals, pebbles, logs or driftwood as shown on the relevant illustrations within this
booklet. Only do this when fire is cold or alternatively use a non combustible tool.
COUNTRY OF DESTINATION
These fires are made in Darlington and there destinations are distributed throughout England, Ireland, Scotland,
Wales, Isle of Wight, and Spain. (GB – IE – ES).