Charnwood LA 45, LA 50iB Operating & Installation Instructions Manual

Operating & Installation Instructions

charnwood

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CONTENTS

OPERATING INSTRUCTIONS

Fuel

Door Operation

Grate

Controlling the Fire

Riddling

Refuelling

Ash Clearance

Overnight Burning

Cleaing and Maintenance

Throat Plate and Flueway Cleaning

Chimney sweeping

Trouble Shooting

Health & Safety Precautions

Performance

Specification

Chimney

Hearth & Fire Surround

Central Heating Sytem

System Controls

Connection to Flues

Soot Doors

Thermostat

Pre Lighting Check

Commissioning

Dimensions

Parts Lists

Certification

4

4

4

5

5

5

5

5

6

6

6

7

9

9

9

9

10

11

12

12

12

13

13

13

14

15

16

INSTALLATION INSTRUCTIONS

4

Lighting

Ref. Country LA50iB 2.01

DOOR OPERATION

LIGHTING

CONTROLLING THE FIRE

Use the spanner type tool to open and close the doors. Turn
the knob on the right hand door anti-clockwise to open and
clockwise to close. When closing the doors do not push on
the enamel with the tool as this can chip the enamel, instead
push the doors on the door knobs.

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.

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.

GENERAL POINTS

FUELS

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.

This appliance has been designed to conform with BS.3378. It
has obtained the approval of HETAS Ltd. (formerly DSFAAS
Ltd.) for burning the following Smokeless Fuels.

HETAS Ltd. approval covers the burning of the following
smokeless fuels on this appliance:

Ancit (Phurnacite Plus),
Anthracite Large Nuts,
Centurion,
Cosycoke,
Extracite,
Maxibrite,
Phurnacite,
Sunbrite Doubles,
Welsh Dry Steam Coal (Large Nuts).

HETAS Ltd. approval does not cover the use of other fuels
either alone or mixed with the above fuels, nor does it cover
instructions for the use of other fuels.

The above fuels are all suitable for use in smoke control areas.
In non-smoke control areas your Housing Authority will be
able to advise you if other fuels may be burnt. For instructions
on burning other fuels please ask your supplier or Housing
Authority for the "Charnwood Instruction Supplement"?.

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.

PETROLEUM COKE IS NOT SUITABLE FOR USE ON

THIS APPLIANCE, ITS USE WILL INVALIDATE THE

GUARANTEE

4

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OPERATING INSTRUCTIONS

1

2

3

4

5

0

Fig. 1. Thermostat Control

Control

Air Inlet

Knob

Damper

There is also a manual secondary air control which is located
above the door opening as shown in Fig. 2. To adjust the
setting, open the doors and use the door opening tool to
move the flap to the desired position. This control should be in
the closed position when burning any of the recommended
smokeless fuels except for anthracite and homefire which
should be burnt with the secondary air inlet open.

The fire may be run with the doors open. 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,
Sunbrite 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.

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

RUNNING THE FIRE WITH THE DOORS

OPEN

SYSTEM CONTROLS

For correct firing we recommend the use of a stove pipe
thermometer which may be purchased from your supplier or from
ourselves.

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.

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 its coolest.
Use the ashpan/riddling tool provided to remove the ashpan,
the fold up carrying handle may be held with a heat proof
glove and/or the door opening tool as shown in Fig.2a

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

available. This may be purchased from your supplier

or, in case of difficulty, from ourselves.

Riddling twice a day is usually sufficient.

The fire should be riddled with all doors shut. Place the tool
on the knob and rotate between the horizontal and the 45°
position several times as shown in Fig. 3.

Caution: when riddling the grate using solid 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.

ASH CLEARANCE

RIDDLING

Charnwood ash

carrier

5

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OPERATING INSTRUCTIONS

Fig. 2. Secondary Air Control

Open

Secondary Air
Flap (shown
closed)

Use the door
opening tool to hold the carrying handle

a heat proof glove and/or

Use the ashpan/riddling tool
to support the front of the ashpan

Fig. 2a. Handling The Ashpan

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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).

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

REFUELLING

the front fire bars or damage to the glass may be caused
when the doors are closed.

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 draw on 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.

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
found necessary

The throat plate and flueways may be cleaned with a low fire
still burning. Lower the throat plate using the throat plate
tool. To do this engage the end of the tool in the throat plate
as shown in Fig. 4., pull the plate forward and then lower it.
Use the scraper tool to push any sooty deposits up the plate
until they fall off the back and into the fire. While the throat
plate is in the lowered position 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 side boiler faces
because if the throat plate becomes tight between the faces
this can cause it to fail prematurely.

Return the throat plate to its correct position - raise the front
of the plate, push it back and then lower it onto the retaining
lugs. The upper set of lugs are for use when burning
smokeless fuels, (see Fig. 4.).

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.

OVERNIGHT BURNING

THROAT PLAT E A N D

FLUEWAY CLEANING

MAINTENANCE

Cleaning

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OPERATING INSTRUCTIONS

Fig. 3. Grate Operation

CW

Riddle Between
Horizontal &
45° Positions

After Riddling
Move Tool
To Horizontal
Position

Do Not Go Beyond
45° Position
When Riddling

Throat Plate

Throat Plate
rests on the
top of the bracket

Pull Forward

Swing Down

Throat Plate

Lowering Tool

Fig. 4. Throat Plate Position & Operation

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horizontal surfaces after sweeping.

In situations where it is not possible to sweep through the
appliance the installer will have provided alternative means,
such as a soot door. After sweeping the chimney the
appliance flue outlet and the flue pipe connecting the
appliance to the chimney must be cleaned with a flue brush.

After clearing any soot from within the fire, replace the throat
plate and the front firebars.

Different types of sweep?s brushes are available to suit
different flueways. For standard brick chimneys a wire centre
sweep?s brush fitted with a guide wheel is recommended. For
prefabricated insulated chimneys the manufacturers
instructions with regard to sweeping should be consulted.

The optional boiler reduction brick may be used when
reduced outputs are required, e.g. during the summer or
when the fire is fitted on to a small heating system.

To fit the brick, let the fire out, clear the grate of any ash and
fuel, and scrape the boiler faces clean. Lift out the deepening
bar and front firebar. Fit the brick into the fire with the thick
part of the brick at the bottom and the sloping face at the
front as shown on the parts list. Push the brick hard up
against the rear face of the boiler. The brick should rest on
the side fireplates and should be clear of the grate bars.
Replace the front firebar and deepening bar.

As the brick is not cemented into position, fitting and
removing it should only take a few minutes.

Check that:
a) the air inlet is not obstructed in any way,
b) chimneys and flueways are clear,
c) a suitable fuel is being used,
d) there is an adequate air supply into the room,
e) an extractor fan is not fitted in the same room as the fire.

Check that:
a) the doors are tightly closed,
b) the thermostat knob is turned down to the minimum
setting,
c) the air inlet damper is closed (at the bottom left of the
appliance, see Fig. 1.), and that it is not prevented from
closing completely by a piece of ash,
d) a suitable fuel is being used,
e) the door seals are in good condition.

BOILER REDUCTION BRICK

TROUBLE SHOOTING

Fire Will Not Burn.

Fire Blazing Out Of Control.

Over-Firing

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.

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 rate for 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.

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 working
well.

After long periods where the fire has been out of use, the
chimney and appliance flueways should be cleaned before
lighting.

For the fire to operate correctly it is important that the door
seals are in good condition. Check that they do not become
worn or frayed and replace them when necessary.

It is recommended that the fire is serviced once a year to keep
it in first class working order. After cleaning out the firebox
thoroughly, check that all internal parts are in good working
order, replacing any parts that are beginning to show signs of
wear. Check that the doors seals are in good condition and
that the doors seal correctly. Check the operation of the
thermostat, both when cold and hot. A servicing guide, TIS

48. is available on request.

The chimney should be swept at least twice a year. In most
installations it will be possible to sweep the chimney through
the appliance.

First remove the front firebars and the throat plate. Then
sweep the chimney ensuring that soot is removed from all

Cleaning the Glass

When not in use

Door Seals

Servicing

CHIMNEY SWEEPING

7

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OPERATING INSTRUCTIONS

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If the fire is over-fired it will cause premature failure of the
internal fire parts. Overfiring is occurring when any internal
parts of the fire begin to glow red. To prevent over-firing
ensure that:
a) the door seals are kept in good condition, and that the
doors are sealing correctly,
b) the thermostat on the fire is working correctly,
c) a suitable fuel is being used,
d) the fire is not fitted onto a heating system which is too
large.

The most common cause of fume emission is flueway or
chimney blockage. For your own safety these must be kept
clean.

Do not light the fire if there is any possibility that any parts of
the system may be frozen.

If the chimney is thoroughly and regularly swept, chimney fires
should not occur. However, if a chimney fire does occur then
close the secondary air inlet (see Fig. 2.), turn the control
knob to the minimum setting (see Fig. 1), and tightly close the
doors of the appliance. This should cause the chimney fire to
go out in which case the control should be kept at the
minimum setting until the fire in the appliance has gone out.
The chimney and flueways should then be cleaned. If the
chimney fire does not go out when the above action is taken
then the fire brigade should be called immediately.

After a chimney fire the chimney should be carefully examined
for any damage. Expert advice should be sought if necessary.

Check that:
a) the fire is burning properly - if not then carry out the checks
under "Fire Will Not Burn".

Fume Emission.

Warning Note: Properly installed and operated this
appliance will not emit fumes. Occasional fume from de­ashing and re-fuelling may occur. Persistent fume emission
is potentially dangerous and must not be tolerated. If fume
emission does persist then the following immediate actions
should be taken:

A) Open doors and windows to ventilate the room.
B) Let the fire out and safely dispose of fuel from the
appliance.
C) Check for flue or chimney blockage, and clean if
required.
D) Do not attempt to relight fire until cause of fume has
been identified, if necessary seek professional advice.

Freezing

Chimney Fires.

Lack of Heat To

Radiators / Hot Water

b) the throat plate is fitted correctly (see Fig. 4.) and that it is
not distorted.
c) the door seals are in good condition.
d) If the hot water goes cold when the pump is turned on, or
if some radiators are hotter than others, then the system may
need balancing, the pump may be pumping the water too
quickly around the system, or the radiators may need
bleeding. Please ask your installer to check these points.
e) Ensure that the boiler reduction brick has not been fitted
when it is not required.

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OPERATING INSTRUCTIONS

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9

HEALTH AND SAFETY PRECAUTIONS

PERFORMANCE

CHIMNEY

Please take care when installing the appliance that the
requirements of the Health and Safety at Work Act 1974 are
met.

Some types of fire cement are caustic and should not be
allowed to come into contact with the skin. In case of contact
wash with plenty of water.

If there is a possibility of disturbing any asbestos in the course
of installation then please use appropriate protective
equipment.

There must not be an extractor fan fitted in the same room as
the appliance as this can cause the appliance to emit fumes into
the room.

There must be an adequate air supply into the room in which
the appliance is installed totalling at least 100 cm (16 in. ) to
provide combustion air. This is particularly necessary if the
room is double glazed.

Do not light the fire before the boiler has been connected to
the system and filled with water, as this can cause serious
damage to the boiler.

In addition to these instructions the requirements of BS:8303
and BS:6461 Pt 1&2; 1984 must be fulfilled. Local Authority
Bylaws and Building Regulations regarding the installation of
Solid Fuel burning appliances, flues and chimneys must also be
observed.

The rated output for the LA45iB is 10.1 kW (34500 btu/h) to
water and 3.1 kW (10600 btu/h) to the room. When the
optional boiler reduction brick is fitted the outputs are
reduced to 8.8 kW (30000 btu/h) to water and 2.1 kW
(7200 btu/h) to the room.

The rated output for the LA50iB is 12.0 kW (41000 btu/h) to
water and 2.2 kW (7500 btu/h) to the room.

These are the outputs obtained during testing in accordance
with BS 3378 burning smokeless fuel with the doors closed
over a 4 hourly re-fuelling interval.

The boiler reduction brick, (which may also be used on the
LA50iB), may be used when a reduced output is required, e.g.
during the summer, or where the appliance is installed on a
small heating system.

The heat output to the room is directly proportional to the
heat output to water as shown in Fig. 5. This means that if the
water heating load is less than the rated output then the room
heating will be reduced by the same proportion. This must be
borne in mind when calculating the heating requirements.

In order for the appliance to perform satisfactorily the

22

chimney height must not be less than 4 metres measured
vertically from the outlet of the fire to the top of the chimney.
The chimney should preferably be 175 mm (7 inches) or
200mm (8 inches) internal diameter or square with sides of
175mm or 200mm internally and

Special chimney and flue connection requirements apply to
appliances installed for the Northern Ireland Housing
Executive. Please refer to Technical Information Sheet no.45
which is available from A. J. Wells & Sons on request.

If an existing chimney is to be used it must be swept and
checked, it must be in good condition, free from cracks and
blockages, and should not have an excessive cross sectional
area (e.g. greater than 250mm x 250mm). If you find that the
chimney is in poor condition then expert advice should be
sought regarding the necessity of having the chimney lined. If
it is found necessary to line the chimney then a lining suitable
for Solid Fuel must be used.

If there is no existing chimney then a prefabricated block
chimney or a twin walled insulated stainless steel flue to
BS:4543 can be used either internally or externally. These
chimneys must be fitted in accordance with the manufacturers
instructions and Building Regulations.

Anki pumice liners or chimney blocks will give a highly
insulated chimney which will work well with all fuels. For
details ring [phone].

Single wall flue pipe is suitable for connecting the appliance to
the chimney but is not suitable for using for the complete
chimney.

If it is found that there is excessive draw in the chimney then a
draught stabilizer should be fitted.

MUST NOT BE LESS
THAN 150mm (6 INCHES) INTERNAL DIAMETER OR
150 x 150mm INTERNAL SQUARE.

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INSTALLATION INSTRUCTIONS

0

2.0

4.0

6.0

8.0

10.0

12.0

1.0 2.0 3.0

Boiler

Output

(kW)

Space Output (kW)

LA50iB

LA45iB

LA45iB with
boiler reduction
brick fitted.

Fig. 5. Performance Chart

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10

HEARTH

PREPARATION OF FIREPLACE

The appliance must be installed on a fireproof hearth and must
be situated at least 300 mm (12 inches) from any combustible
material. The positioning of the appliance and the size of the
hearth are governed by building regulations for Class 1
appliances. These building regulations state that the hearth
must extend in front of the appliance by at least 300 mm (12
inches) and to the sides by at least 150 mm (6 inches). If in
doubt as to the positioning of the appliance expert advice
should be sought either from the supplier or the local building
inspector.

Before fitting the appliance into an existing fireplace remove
the fireback and any loose in-fill material.

The hearth, surround and opening for the appliance must
conform with Figs. 6 and 7. The flat area around the opening
must be a minimum of 750mm wide and 660mm high. Ensure
that the hearth and the base in the opening are flat, level, and
at right angles to the surround.

Make two holes in the chimney breast, one in the front to give

access for infilling and fixing the flue pipe, and one in the side
to give access for the pipework.

The central heating system must comply with BS:5449 part 1.

If the system is to be a combined heating and domestic hot
water system then a double feed indirect hot water storage
cylinder to BS:1566 part 1 should be used. In order to
prevent the build up of scale and corrosion a suitable inhibitor
should be used. The system must be correctly vented as
shown in Figs. 8 and 9. The height differential between the
header tank and the appliance must not exceed 15.2 metres
(50 feet).

If all four boiler tappings are used then, if possible, diagonal
pairs should be connected for domestic hot water and central
heating. Where a common return is used an injector tee must
be incorporated into the system as shown in Fig. 10. This will
ensure that a good domestic hot water supply is maintained
when the central heating pump is operating. These are
available from ourselves if you are unable to obtain one
locally.

The system must incorporate a gravity circuit which will
normally heat the domestic hot water and an unvalved
radiator with an output of at least 1 kW. When the appliance
is not connected to a domestic hot water system the unvalved
radiator(s) on the gravity circuit must have an output of at
least 1.25 kW. This is to prevent boiling in case of pump
failure. All pipework in the primary circuit must be 28 mm
diameter and the gravity flow pipe must rise continuously
from the boiler to the open vent. Two typical systems are
shown in Figures 8. and 9.

If the appliance is used to heat a small central heating system
then the heat output to the room from the fire will be
reduced. Fig. 5. shows the ratio of space heating to water
heating which can be expected.

Fitting a radiator in the same room as the fire is
recommended as it will allow greater flexibility in the way that
the system is operated as well as ensuring that there is
sufficient heat.

The circulating pump may be controlled by means of time
switches, room thermostats or outdoor thermostats.
Radiators may be either manually or thermostatically
controlled. These controls will all work in conjunction with
the thermostat on the appliance and the minimum return
thermostat.

We recommend fitting a pipe thermostat onto the gravity
return pipe and wiring it into the mains supply to the pump so
that if the gravity return temperature drops below 45°C then
the pump will cut out. This will help to prevent condensation

CENTRAL HEATING SYSTEM

SYSTEM CONTROLS

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INSTALLATION INSTRUCTIONS

A

B

405 mm

400 mm

Minimum

This Dimension Is The
Minimum Level Area
Required To Enable The

For Overall Sizes Of
Hearth See The
Section Titled "Hearth".

Doors To Be Opened.

Dim. A:

Dim. B:

Min. 405mm (16")

660 mm

The shaded area on the face of

the surround is the minimum flat

area required.

750 mm

Min. 555mm (21 - 3/4")

Max. 575mm (22 - 2/3")

Max. 470mm (18 - 1/2")

Fig. 6. Limiting Dimensions Of Hearth

Fig. 7. Limiting Dimensions Of Surround And Opening

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11

forming on the boiler faces and will thereby increase the life
of the boiler. It will also ensure that priority is given to the
domestic hot water. These thermostats are available from
ourselves if you are unable to obtain them locally.

In some cases it may be necessary to place the connecting flue
pipe in the chimney before fitting the fire into the fireplace.

Apply fire cement to the rear face of the sealing flange on the
appliance. Fit the appliance into the opening ensuring that it is
central and that a good seal is made between the sealing
flange and the face of the surround.

Remove any excess fire cement from around the sealing
flange.

The fire should be screwed to the hearth through the holes at
the base of the sealing flange.

Connect the heating system to the boiler ensuring that the
primary flow pipe rises from the appliance. Fill the system
with water and check for leaks.

Make the flue connection with a short length of 150mm (6”)
internal diameter flue pipe (cast iron to BS41, 1.0 mm thick
stainless steel, or 5.0mm thick mild steel).

The end of the flue pipe must line up with the centre-line of
the chimney, and must also extend to the point where the
chimney narrows to its final size. Any large voids must be
filled and flaunched to the flue pipe to ensure that all soot
deposits can be cleared when the chimney is swept. If
necessary a flue offset is available. The offset may be used
directly with stainless steel flue pipe or may be used with cast
iron flue pipe in conjunction with a cast iron adaptor. If the
flue pipe has to be set at an angle then cut the ends so that it
sits correctly.

Ensure that the flue pipe is not obstructed or restricted in any
way and that all joints are well sealed.

Before infilling cover the front of the appliance to protect it.
Ensure that the flue pipe is central and then fill the space
between the body of the appliance and the structural
brickwork with vermiculite (e.g. micafil or similar) concrete.
Ensure that there are no air pockets. The recommended mix
is six volumes of vermiculite granules to one volume of
Portland cement thoroughly mixed together. Enough water
should be added so that no more than one or two drops of
water are released when a handful of the mixture is
squeezed.

After filling with vermiculite flaunch the top of the flue
connector pipe to the chimney with lime mortar.

Make good the holes in the front and side of the chimney
breast making sure that they are completely airtight. A typical
installation is shown in Fig.11.

FITTING THE FIRE

FLUE CONNECTION AND INFILLING

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INSTALLATION INSTRUCTIONS

Central Heating Flow

Central Heating Return

Drain Cock at Lowest Point

Drain Cock

GravIty Return 28mm

Gravity Flow 28mm

Indirect Hot Water Cylinder

Cold Water Tank

Overflow

Feed and Expansion Tank

22mm Open Vents

Gravity Radiator

Circulating Pump

Central Heating Return

Drain Cock at Lowest Point

Drain Cock

Gravity Return 28mm

Gravity Flow 28mm

Indirect Hot Water Cylinder

Domestic Hot Water Draw Off

Cold Water Tank

Overflow

Overflow

Feed and Expansion Tank

22mm Open Vents

Gravity Radiator

Circulating Pump

Injector Tee

Minimum Return Thermostat

Gravity Return

(28mm Pipe)

Central Heating Return

Common Return to Boiler

Central Heating Flow

Minimum Return
Thermostat

(28mm Pipe)

Overflow

Domestic Hot Water Draw Off

Fig. 8. Typical Central Heating & Hot
Water System Using 4 Boiler Tappings

Fig. 9. Typical Central Heating & Hot
Water System Using 3 Tappings

Fig. 10. Injector Tee.

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12

In most installations it will be possible to sweep the chimney
through the appliance. If this is not possible then some
alternative means (such as a soot door), must be provided.

The free inset method of installation may be used instead of
infilling. Details are available on request.

Before lighting the fire check the cold setting distance of the
thermostat.

With the control knob at the maximum setting the flap should
be 18 mm from the air inlet as shown in Fig. 12. To adjust the

distance slacken the locking nut and adjust as necessary. When
set correctly re-tighten the locking nut. Ensure that the flap
opens and closes freely as the knob is turned.

THERMOSTAT

ASSEMBLY

PRE LIGHTING CHECK

Fit the side panels and hood onto the appliance. Instructions
for this are enclosed with the panel pack.

Replace any internal parts previously removed.

Before initial lighting check the following points:

1. The bottom grate bars must all be fitted and should move
freely and easily when the riddling mechanism is operated.

2. The plates round the sides and back of the grate must be in
position and sitting correctly.

3. The throat plate must be fitted in the roof of the appliance

- see Fig. 13.

COMMISSIONING

FREESTANDING KIT

On completion of the installation and after allowing a suitable
period of time for the fire cement and mortar to dry out, the
fire should be lit and checked to ensure that smoke and fumes
are taken from the appliance up the chimney and emitted
safely. Also check all joints and seals.

The central heating pump should be adjusted to give the
correct water flow against the circuit resistance and the
system should be correctly balanced.

On completion of the installation and commissioning please
leave the operating instructions with the customer and advise
on the use of the appliance and any controls on the system.

A freestanding kit is available. Details of dimensions and
outputs are available on request.

®

INSTALLATION INSTRUCTIONS

Vermiculite
Infill

Flaunching

Short Length

or Flue Offset.

Of Flue Pipe,

Fig. 11. Typical Installation

18mm

Thermostat Flap

Locking Nut

Fig. 12. Thermostat Setting

Throat Plate

Throat Plate
rests on the
top of the bracket

Fig. 13. Throat Plate Position

charnwood

®

COUNTRY 4 DIMENSIONS (MM)

13

®

LA 45 & 50IB DIMENSIONS (MM)

0

4

5

1

2

3

547

619

250

240

400

(To suit 150mm flue pipe)

168 i/d

Boiler tappings are 1" BSP Female.

(2 Each side)

520

360 120

164

261

554

charnwood

Issue A

14

®

charnwood BI SHO PS WAY, NE WPO RT, ISL E OF WI GHT P O30 5 WS, U NIT ED KI NGD OM

T:[phone] • F:[phone] • [e-mail] • WWW.CHARNWOOD.COM

charnwood

®

LA 45 & 50 I B PART S LIST

Freestanding Kit

1

2

3

4

5

0

40

32

34

31

18

10113589

13

2928

14

41

15

30

38

37

39

42

46

43

33

33a

47

48 49

50

51

2424251923

20 27 19 21 26 12 17 16 7 5 36

52

1* 008/RW35L L.H. Door Seal 8.50 9.99
2* 008/RW35R R.H. Door Seal 8.60 10.11
3* 008/RW35/S Door Seal Set Incl. Adhesive 20.30 23.85
4* 008/FW29 Door Seal Adhesive 4.80 5.64
5 006/RW18 Glass Inc Glass Channel 32.10 37.72
6* 008/RW44/S Glass Channel Set Of 8 4.10 4.82
7 004/EW23 Glazing Bar 2.10 2.47
8 008/FW27 Hinge Post Main Door 3.20 3.76
9 008/BW39/S Hinge Pin Main Door Set (4) 1.80 2.12
10 008/RW43/A Door Catch Assembly R.H. 9.70 11.40
11 002/BW12 Door Knob L.H. 6.70 7.87
12 002/CG06 Riddler Knob 8.50 9.99
13 002/BW20 Riddler/Ashpan Tool 10.80 12.69
14 002/BW26 Door Opening Tool 4.80 5.64
15 008/BW50 Thermostat Knob 2.30 2.70
16 002/FW07 Front Firebar 33.10 38.89
17 002/FW08 Deepening Bar 23.10 27.14
18 002/FW32 Throat Plate 28.80 33.84
19 002/FW15 Side Fire Plate 18.00 21.15
20 002/FW16 Back Fire Plate 14.90 17.51
21 002/CG01 Bottom Grate Bar 7.20 8.46
22 002/CG01S11 Set Of Grate Bars 60.50 71.09
23 004/FW17 Ashpan 31.50 37.01
24 002/EW30 Carrier Bar 21.70 25.50
25 012/EW33 Mover Bar 19.80 23.27
26 012/FW14 Riddler Rod 14.90 17.51

27 012/CG05 Idler Rod 14.00 16.45
28 008/FW48 Thermostat C/W Flap 22.70 26.67
29 008/BW57 Thermostat Flap 90mm Dia 4.00 4.70
30 005/RW05 Side Panel L.H. 39.10 45.94
31 005/RW04 Side Panel R.H. 39.10 45.94
32 005/RW06 Hood Panel 56.70 66.62
33 004/RW13 Panel Fixing Bracket 7.50 8.81
33a 012/RW30 Hood & Panel Fixing Kit 5.80 6.82
34 008/WW14S Hood Fixing Pin Set (4) 2.30 2.70
35 003/RW01 Door L.H. 44.30 52.05
36 003/RW02 Door R.H. 44.30 52.05
37 009/LA50IB/A Firebox Assembly LA50iB 434.40 510.42
38 009/LA45IB/A Firebox Assembly LA45iB 434.40 510.42
39 012/FW12 Flue Offset 55.80 65.57
40 011/JW09 Fire Brick (LA45iB) 8.40 9.87
41 012/FW34 Scraper Tool 5.60 6.58
42 008/FW33 Throatplate Tool 5.30 6.23
43 Serial No. Label
44* 010/FW51 Ash Carrier 41.90 49.23
45* 008/TH02/L Low Level Pipe Stat 21.50 25.26
46 012/RW09 Secondary Air Flap 1.80 2.12
47 011/AV09 Boiler Reduction Brick 21.40 25.15
48 005/RW23 Side Panel L.H. (Freestanding Kit) 56.20 66.04
49 005/RW24 Side Panel R.H. (Freestanding Kit) 56.20 66.04
50 005/RW25 Top Panel (Freestanding Kit) 84.30 99.05
51 010/RW26 Rear Panel Bracket (F'standing Kit) 5.80 6.82

(Optional Extra)

(Optional Extra)

(Optional Extra)

(Opt'l Extra)

Item Part number Description Exc.Vat Inc.Vat Item Part No. Description Exc.Vat Inc.Vat

Nuts, bolts, screws and clips are not shown for clarity. To obtain spare parts contact your local stockist

giving Model, Part No. and Description. In case of difficulty contact the manufacturer at the address shown

below. This drawing is for identification purposes only.

* These items are not shown on the drawing.

Prices shown are recommended retail prices and include postage & packing.
Prices are correct at the date shown above but may be subject to change without notice.

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A D i v i s i o n o f A . J . We l l s & S o n s L i m i t e d R e g i s t e r e d i n E n g l a n d No . 0 3 8 0 9 3 7 1

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charnwood

y ou r p re m ie r de a le r

REV.

LA50IB 02.01

®