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Varde Shape - Smoke Control Kit Handleiding

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Varde Shape
Smoke Control Kit
Additional Installation and
User Instructions for use in
Smoke Control Areas
PM1054
Issue 2 (July 2014)
These instructions for fitting and operating the Smoke Control kit must
be read in conjunction with the following Installation Instructions:
Ref: Varde Shape 1. edition FOR-176 GB
2
1. General
These instructions apply to the Shape product listed
when fitted with a Smoke Control kit.
Appliance Smoke control kit Part No.
Shape VD-SHAPESZKIT
NOTE: These appliances have been independently tested
to PD6434 and have been exempt from the controls that
generally apply in smoke control areas hence are
considered suitable for use in Smoke Control Area when
burning wood and ONLY when fitted with the relevant
Smoke Control kit detailed below.
To meet the Smoke Control requirement this appliance
must be operated correctly in order to minimise the
amount of smoke produced.
Burn dry wood only.
These instructions must be left with the user and
kept with the original instructions which they now
supersede.
2. Recommended Fuels
Wood Logs:
Burn only seasoned timber with a moisture content of
less than 20%. To ensure this, allow cut wood to dry for
12 to 18 months.
Poor quality timber:
• Causes low combustion efficiency.
• Produces harmful condensation.
• Reduces effectiveness of the air control and life of
the appliance.
Do not burn construction timber, painted, impregnated /
treated wood, manufactured board products or pallet
wood.
3. Lighting
Top-down lighting
Theuseof‘top-down’lightingisrecommended,where
you light the wood at the top of the combustion chamber
instead of the bottom.
Place four small logs in a cross on the bottom plate of the
combustion chamber with a small distance between each
log.
Place 8 - 12 smaller sticks in a cross on top of the logs.
Place 2 - 3 firelighters at the top and in between the sticks.
A thin layer of ashes at the bottom of the appliance
makes lighting a fire easier.
Recommended Log Quantities
Length 20-25 cm
Diameter (max) 10 cm
Quantity (3-4 logs) 1.8 kg
Before lighting the appliance, open the shaking grate by
pulling the lever all the way out. Open the valve on the
ash-pan for ignition air and open the valve on top rear of
the appliance for combustion air (alternatively, leave the
ash-pan open slightly for a short period, if there is no
wind and no draught in the chimney), this allows the fire
to catch.
Always remember to close the ash-pan after lighting the
fire or overheating can occur, which is not covered by the
warranty.
Light the paper or firelighters.
Close the door.
Once the fire is burning, close the ignition air control on
the ash-pan (The handle is in the vertical position). When
the appliance is at nominal temperature air should not be
added through this control, or overheating can occur
which is not covered by the warranty.
Allow the fire to become established until there is a
glowing bed of charcoal. You can then add fuel and adjust
the appliance, see the notes on refuelling.
3
Combustion/ Secondary Air Control
Combustion
Air Control
Rear of
Appliance
Ignition Air Control
Ignition Air
Control
4. Refuelling the Appliance
Open the ignition air and combustion air controls fully
and burn for a few minutes before refuelling.
It is recommended that the door is not opened until only
embers are left in the combustion chamber. Opening the
door whilst flames are still burning, producing smoke and
gas, could cause smoke or flames to spill into the room.
Open the door slightly for a couple of seconds to
neutralise the negative pressure in the combustion
chamber before opening the door completely.
Rake the embers evenly over the fire bed to establish
a glowing firebed.
If the fire bed is low add a small amount of kindling
wood to help re-establish the fire and prevent excess
smoke.
Place 2 - 4 logs in a cross on top of the embers and
close the door.
Open stacking
Open stacking allows oxygen to easily reach every part of
the fire.
Compact stacking
Compact stacking will make the wood burn slower as
wood can only reach the outside of the fire. This will
cause the fire to smoulder and produce smoke.
Do not fill to more than 1/3 capacity.
Refuelling on to a low fire bed:
If there is insufficient burning material in the firebed to
light a new fuel charge, excessive smoke emission can
occur. Refuelling must be carried out onto a sufficient
quantity of glowing embers and ash that the new fuel
charge will ignite in a reasonable period. If there are too
few embers in the fire bed, add suitable kindling to
prevent excessive smoke.
Fuel overloading
The maximum amount of fuel specified in this manual
should not be exceeded, overloading can cause excess
smoke.
After refuelling:
Burn the new logs at high output for approximately 5
minutes before closing the ignition air control.
Adjust the burn rate using the combustion air control.
4
Do not close the air controls until the fire is burning
well.
If the fire subsides re-open the combustion air
control to re-establish the flames.
Experience establishes settings to suit personal
preferences.
Do not burn large amounts of fuel with the combustion
air control closed for long periods of time. This reduces
the glass cleaning effect and causes tars and creosotes
to build-up in the appliance and flue system and will
produce excessive amounts of smoke.
When in use, burning the appliance at high output for a
short period also reduces tars and creosote.
When running the appliance:
Refuel little and often for clean, efficient burning.
Wood burns best on a bed of ash.
A bright and clean firebox indicates the appliance is
burning well.
5. Controlling the air
The appliance has various features for the air control.
Ignition air control
The valve on the ash-pan is constructed as an ignition
air control and should only be used when lighting the
appliance. When the appliance is burning the valve
should to be closed.
- Burning position: The control is closed when the handle
is in the vertical position.
- Ignition position: The control is open when the handle
is in the horizontal position with the hole at the top.
When the fire is burning steadily the control must be
turned back to the burning position.
Combustion air
Pre-heated air for the combustion process, which, can
be altered according to the desired room temperature
and the effectiveness of the chimney.
A high level of chimney draught requires a smaller intake
of combustion air.
Tertiary air (pre-set)
Constantly added air, which makes the appliance burn
even cleaner and lowers the content of tar and soot in
the combustion process to an absolute minimum.
At optimal combustion settings, the glass and
combustion chamber will be burnt completely clean and
the remaining amount of ashes will be minimal.
5. Advice
Never burn wood with an open door.
If you frequently have low intensity fires, tar and creosote
may be deposited in the chimney. Tar and creosote are
highly combustible substances. Thicker layers of these
substances might catch fire when the temperature in the
chimney increases suddenly and steeply. Therefore it is
necessary for the fire to regularly burn at a high output for
short periods, so that layers of tar and creosote
disappear.
Low intensity fires also cause tar deposits on the
appliance window and door.
When the outside temperature is not very low, it is better
to burn wood intensely for a few hours instead of having
a low intensity fire for a long period of time.
Control the air supply with the combustion air control.
The combustion air inlet not only supplies air to the fire
but to the glass as well, so that it does not get
dirty so quickly.
Open the ignition air control for a time if the air supply by
the combustion air inlet is inadequate or if you want to
boost the fire for a short period.
Do not use the appliance continuously with the
air controls fully open.
It is better to add a small amount of logs regularly than to
add many logs at the same time.
6. Extinguishing the fire
Do not add fuel and just let the fire go out. If a fire is
damped down by reducing the supply of air, harmful
substances will be produced and released. Therefore, let
the fire go out naturally. Keep an eye on the fire until it is
gone out. If the fire has died completely, all air inlets can
be closed.
5
These instructions cover the fitting of the
Smoke Control Kit
1. Parts List
Appliance Smoke control kit Part No.
Shape VD-SHAPESZKIT
Kit contents:
1 x Smoke Control Bracket
1 x Washer
2. Smoke Control Kit - Fitting Instructions
Tools required: 5mm Hex key.
To fit the Smoke Control kit first remove the cast top
plate. Place carefully to one side.
Remove the fixing screw using a 5mm hex key.
Fixing
Screw
Air Control
Slider
Washer
Remove the washer and combustion air control arm.
Dispose of the washer.
Align the Smoke Control bracket with fixing hole.
Smoke Control
Bracket
Place the new washer, combustion air control arm and
countersunk washer on top of the Smoke Control bracket
and secure with the fixing screw.
Fixing
Screw
Air Control
Slider
Washer
Smoke Control
Bracket
Replace the cast top plate ensuring that the four studs
locate in the location holes on the top of the appliance.
The top plate should sit flush to the appliance casing.
The new Smoke Control bracket will now restrict the
movement of the air slider in order to comply with Smoke
Control Regulations.
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An appliance modified for Smoke Control can be
recognised in the following manner:
The combustion air control has restricted movement
and will only close halfway.
For appliances that have not been fitted with the Smoke
Control kit the combustion air control can not be shut
down completely.
The Air Control on appliances modified for Smoke Control
cannot shut down completely.
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The Varde Ovne Shape 1 (VD-SHAPE1B) - Varde Ovne Shape 2 (VD-SHAPE2B)
have been recommended as suitable for use in smoke control areas when burning
drywoodlogswhensuitablepermanentstopshavebeenttedandwhenoperated
inaccordancewiththemanufacturer’sinstructions.
Stovax Ltd, Falcon Road, Sowton Industrial Estate, Exeter, Devon, England EX2 7LF
Tel: (01392) 474011 Fax: (01392) 219932
E-mail: info@stovax.com www.www.vardeovne.co.uk
E & O E
United Kingdom and Eire distributors of Varde Ovne
The Clean Air Act 1993 and
Smoke Control Areas
Under the Clean Air Act local authorities may declare the whole or part of the
district of the authority to be a smoke control area. It is an offence to emit smoke
fromachimneyofabuilding,fromafurnaceorfromanyxedboileriflocatedin
a designated smoke control area. It is also an offence to acquire an
“unauthorised fuel” for use within a smoke control area unless it is used in an
“exempt” appliance (“exempted” from the controls which generally apply in the
smoke control area).
The Secretary of State for Environment, Food and Rural Affairs has powers
under the Act to authorise smokeless fuels or exempt appliances for use in
smoke control areas in England. In Scotland and Wales this power rests with
Ministers in the devolved administrations for those countries. Separate
legislation, the Clean Air (Northern Ireland) Order 1981, applies in Northern
Ireland. Therefore it is a requirement that fuels burnt or obtained for use in
smoke control areas have been “authorised” in Regulations and that appliances
used to burn solid fuel in those areas (other than “authorised” fuels) have been
exempted by an Order made and signed by the Secretary of State or Minister in
the devolved administrations.
Further information on the requirements of the Clean Air Act can be found here:
http://smokecontrol.defra.gov.uk/
Your local authority is responsible for implementing the Clean Air Act 1993
including designation and supervision of smoke control areas and you can
contact them for details of Clean Air Act requirements”
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