Charnwood SLX45 MKII MULTI-FUEL User manual

CHARNWOOD SLX45
Multi-Fuel
Roomheater with Boiler
Operating
and
Installation Instructions
A D i v i s i o n o f A . J . W e l l s & S o n s L i m i t e d R e g i s t e re d i n E n g l a n d N o . 0 3 8 0 9 3 71
C H A R N W O O D B i s h o p s Wa y, N e w p o r t , I s l e o f W i g h t P O 3 0 5 W S , U n i t e d K i n g d o m
T: + 4 4 ( 0 ) 19 8 3 5 3 7 7 9 9 F : + 4 4 ( 0 ) 19 8 3 5 3 7 7 8 8 c h a r n w o o d @ a j w e l l s . c o . u k w w w. c h a r n w o o d . c o m
®

Page 3
SLX 09.00
GENERAL POINTS
Before lighting the fire check with the installer that the
work and checks described in the installation instructions
have been carried out correctly and that the chimney has
been swept, is sound, and free from any obstructions.
WARNING There must not be an extractor fan fitted in
the same room as this appliance as this can cause the
appliance to emit smoke and fumes into the room.
If the appliance is fitted in place of an open fire then the
chimney should be swept one month after installation to
clear any soot falls which may have occurred due to the
difference in combustion between the appliance and the
open fire.
When using the fire in situations where children or infirm
people are present please use a fire guard to prevent
accidents. The fire guard should be manufactured in
accordance with BS 6539.
FUELS
The following smokeless fuels are all suitable for use on this
appliance:
Ancit (Phurnacite Plus),
Anthracite Large Nuts,
Centurion,
Cosycoke,
Extracite,
Maxibrite,
Phurnacite,
Welsh Dry Steam Coal (Large Nuts).
The above fuels are all suitable for use in smoke control
areas. In other areas the following fuels may also be burnt:
Coal
Housecoal doubles, trebles or cobbles may all be burnt.
Do not use singles, small nuts, or coal dust. It is important
that large size coal is used (i.e. larger than 2’’or 50 mm in
size). The coal should be dry.
When burning bituminous coal a little extra care is
needed. Please take note of the section ‘‘Special Points
For Burning Coal’’.
Wood
Only dry well seasoned wood should be burnt on this
appliance as burning wet unseasoned wood will give rise
to heavy tar deposits. For the same reason hard wood is
better than soft wood. Burning wet unseasoned wood will
also result in considerably reduced outputs. The wood
should be cut and split and then left to season in a well
ventilated dry place for at least one year but preferably
two years before use.
Peat
Ensure that the peat is well dried before use. Burning wet
peat will give rise to heavy tar deposits and reduced
outputs.
PETROLEUM COKE IS NOT SUITABLE FOR USE ON
THIS APPLIANCE, ITS USE WILL INVALIDATE THE
GUARANTEE
At first you may find it helpful to try several fuels to find the
most suitable. If you are unable to obtain the fuel you want,
ask your supplier or an approved fuel distributor to suggest
an alternative.
DOOR OPERATION
The doors are opened by raising the door handle as shown
in Fig. 1. When the fire is alight, avoid touching the doors
other than on the knobs as the metal will become hot.
When closing the doors do not use excessive force.
Turn handle
clockwise to open
Thermostat control
Thermostat flap (behind side panel)
Thermostat bypass
1
2
3
4
5
0
Fig. 1. Controls
OPERATING INSTRUCTIONS FOR THE
CHARNWOOD SLX45

Page 4
SLX 09.00
LIGHTING
Place some paper and dry kindling wood or fire lighters on
the grate and cover with a small amount of fuel. Turn the
thermostat control knob to the maximum setting and light
the paper or fire lighters. Close the doors and allow the fire
to burn until the fuel is well ignited then load with more fuel
and adjust the thermostat to the required level.
On initial lighting, the fire may smoke and give off an odour
as the silicon paint with which the firebox is painted reacts
to the heat. This is normal and will cease after a short time.
In the meantime the room should be kept well ventilated.
Before relighting the fire, riddle, remove any clinker from
the firebed and empty the ashpan.
CONTROLLING THE FIRE
The rate of burning and hence the output is controlled by
the control knob on the left hand side of the appliance,
shown in Fig. 1. This is linked to a thermostat which
controls the boiler temperature. The number at the top of
the knob is the number at which it is set. Some
experimentation may be necessary to obtain the desired
heat output.
The thermostat also controls the airwash air which will
keep the glass clear of deposits and also give a cleaner burn
when using wood and coal. There is a thermostat bypass
(shown in Fig. 3.) which will help to keep the glass clean
when the fire is slumbering. This will need to be set to suit
the chimney conditions.
RUNNING THE FIRE WITH THE
DOORS OPEN
The fire may be run with the doors open if desired
although this will result in a reduction in efficiency and
hence heat output, particularly to the boiler. The more
reactive fuels, like Homefire, will burn better when the
doors are open than fuels like Phurnacite and Ancit.
For safety reasons, if the fire is to be left unattended with
the doors open then use a spark guard which complies with
BS 3248.
SYSTEM CONTROLS
The heating system controls may consist of time switches,
room thermostats, outdoor temperature thermostats and
thermostatic radiator valves in virtually any combination.
These will work in conjunction with the thermostat control
on the appliance. The thermostat on the appliance will
simply control the temperature of the water coming from
the boiler and hence the temperature of the radiators and
domestic hot water. The automatic controls (other than
thermostatic radiator valves) will switch the pump (and
hence the radiators) on and off. Your installer will be able
to explain the controls fitted to your system and how to
operate them.
ASH CLEARANCE
The ashpan should be emptied regularly before it becomes
too full. The most convenient time to remove the ash is just
before riddling the fire since the ash will then be at it’s
coolest. Use the ashpan/riddling tool provided to remove
the ashpan, the fold up carrying handle should be held with
a heat proof glove.
Never allow the ash to accumulate in the ashpan so that it
comes in contact with the underside of the grate as this will
seriously damage the grate bars. Ensure that the air inlet
damper is not prevented from closing by spilled fuel or ash.
Care should be taken to ensure that ash is cool before
emptying it into plastic liners or bins.
To make ash removal easier there is a special Charnwood
ash carrier available. This may be purchased from your
supplier or, in case of difficulty, from ourselves.
For Wood
Do Not Go Beyond
45° Position
When Riddling
Riddle Between
Horizontal &
45° Positions
Tool To Be
Horizontal
For Solid Fuel
Vertical
Tool to be
Or Peat
Fig. 2. Grate Operation

Page 5
SLX 09.00
RIDDLING
Riddling twice a day is usually sufficient.
The fire should be riddled with all doors shut. Place the tool
on theknob and rotate between the horizontal and the 45°
position several times as shown in Fig. 2.
Caution: when riddling the grate usingsolid fuel do not go
beyond the 45° position as this can cause the grate to jam.
If jamming does occur then the fire should be allowed to
burn for approximately half an hour before riddling the
grate again as described above.
Too much riddling can result in emptying unburnt fuel into
the ashpan and should therefore be avoided. Clinker should
regularly be removed from the firebed.
After riddling, the grate should be put back into the solid
fuel position (the tool should be horizontal).
REFUELLING
Keep the firebox well filled (the fuel may be sloped up from
the front firebars), but do not allow fuel to spill over the
top of the front fire bars. Take care that fuel does not
project over the front fire bars or damage to the glass may
be caused when the doors are closed.
OVERNIGHT BURNING
Empty the ashpan, if necessary, and then riddle the fire. If
the fire is very low then it may be necessary to add a little
fuel and turn the thermostat control up to maximum for a
brief period until the fire is burning brightly before filling
with fuel.
If the central heating pump is off overnight then the
thermostat may be left at the same setting for both day and
night operation. If the central heating pump is on overnight
then set the thermostat control to give the required level of
heating.
Some experimentation may be necessary to find the setting
most suitable for the particular fuel used and the drawon
the chimney.
For overnight burning the fire doors must be closed.
To revive the fire, empty the ashpan if necessary, riddle,
and turn the thermostat control knob to maximum. When
the fire is burning well load on more fuel as necessary and
turn the control knob to the desired setting.
THROAT PLATE AND FLUEWAY
CLEANING
It is important that the throat plate and all the appliance
flueways are kept clean. When burning smokeless fuels
they should be cleaned at least monthly and more
frequently if it is foundnecessary
The throat plate and flueways may be cleaned with a low
fire still burning. Use the scraper tool to scrape any sooty
deposits off the front of the plate until they fall into the fire.
Also scrape any soot deposits from the sides and top of the
firebox. Ensure that soot deposits are not allowed to build
up on the sides because if the throat plate becomes tight
between the faces this can cause it to fail prematurely.
More soot will be deposited on the throat plate and in the
flueways if the appliance is run at low levels for long
periods. If this is the case then more frequent cleaning will
be necessary.
SPECIAL POINTS WHEN BURNING
COAL
When loading the appliance take care not to smother the
fire, instead fill the firebox in two stages waiting between
each stage for the flames to appear above the fire.
After a period of slumbering always turn the air control up
to maximum and wait until flames appear above the fuel
bed before opening the doors.
Burning coal will produce more soot deposits than other
fuels, especially if the fire is run at low levels for long
periods. It is therefore vital to clean the throat plate
regularly, daily cleaning is recommended.
MAINTENANCE
Cleaning
The appliance is finished in vitreous enamel. To clean the
surfaces simply wipe over with a dry cloth. Abrasive pads
and scouring cleaners must not be used as these will
damage the finish. Care should be taken not to knock the
enamel with hard objects as it will chip.
Cleaning the Glass
The glass in the doors is a special ceramic glass which is able
to withstand high temperatures. Before cleaning the glass
open the doors and allow them to cool. Clean the glass
using a damp cloth and then wiping over with a dry cloth.
Any stubborn deposits on the glass may be removed with a
proprietary stove glass cleaner or ceramic hob cleaner.
Some deposits on the glass may be burnt off simply by
running the fire at a fast ratefor a few minutes. Do not use
abrasive cleaners or pads as these can scratch the surface
which will weaken the glass and cause premature failure.
Aerosol spray cleaners should not be used near the
appliance whilst it is under fire.
When not in use
If the fire is going to be out of use for a long period, (for
instance in the summer,) then to prevent condensation, and
hence corrosion, the thermostat should be left at the
maximum setting and the main doors left ajar. It is also
advisable to sweep the chimney and clean out the fire.
Spraying the inside of the doors and firebox with a light oil,
such as WD40, will also help to keep all internal parts