Yeoman YM CL8HB User Manual

Yeoman CL

High Output Boiler Stove

YM-CL8HB

Instructions for Use,

Installation and Servicing

For use in GB & IE (Great Britain and Republic of Ireland).

This appliance has been certified for use in countries other than those stated. To install this appliance in these countries, it is essential to obtain the translated

instructions and in some cases the appliance will require modification. Contact Stovax for further information.

IMPORTANT

This appliance will become hot whilst in operation, it is therefore recommended that a suitable guard should be used for the

protection of young children, the elderly or infirm. Do not attempt to burn rubbish in this appliance.

Please read these Instructions carefully before installation or use.

Keep them in a safe place for future reference and when servicing the fire.

The commissioning sheet found on page 3 of these instructions should be completed by the Installer.

PM442 Issue 2 (October 2010)

APPLIANCE COMMISSIONING CHECKLIST

To assist us in any guarantee claim please complete the following information:-

Retailer appliance was purchased from

Name: .................................................................................................................................................................

Address:...............................................................................................................................................................

............................................................................................................................................................................

Telephone number:.............................................................................................................................................

Essential Information - MUST be completed

Date installed: .....................................................................................................................................................

Model Description:..............................................................................................................................................

Serial number:.....................................................................................................................................................

Installation Engineer

Company name:.....................................................................................................................................................................

Address: .................................................................................................................................................................................

...............................................................................................................................................................................................

Telephone number:................................................................................................................................................................

Commissioning Checks (to be completed and signed)

Is flue system correct for the appliance

Flue swept and soundness test complete

Smoke test completed on installed appliance

Spillage test completed

YES

Use of appliance and operation of controls explained

Instruction book handed to customer

Signature: .......................................................................................

Print name:...............................................................

USER INSTRUCTIONS

SERIAL NUMBER

1. GENERAL POINTS

1.13 This number is required when ordering spare parts or

making warranty claims. It is found on the appliance data

plate.

1.1 Before use of this appliance please read these

instructions fully.

The appliance must be fitted by a registered installer , or

approved by your local building control officer.

1.2 All local regulations, including those referring to national

and European Standards need to be complied with when

installing the appliance.

1.3 Only use for domestic heating in accordance with these

operating instructions.

Data Plate

1.4 You must burn only approved fuels. Do not use with liquid

fuels or as an incinerator.

1.5 Appliance surfaces become very hot when in use. Use

a suitable fireguard if young children, elderly or infirm

persons are present.

PR8745

The data plate is found on a swing out data plate located

on the back of the stove on the left hand side (see

Diagram 1).

Stovax offer firescreens, sparkguards and hearthgate systems

‡

for protection . Your Yeoman retailer can advise you about

these products.

THERMOSTAT

1.6 Do not place photographs, TV’s, paintings, porcelain or

other combustible items on the wall or near the appliance.

Exposure to hot temperatures will cause damage. Do not

place furniture, or other items such as drying clothing,

closer than 1m from the front of this appliance.

As an optional extra this stove can be controlled by a

thermostat which regulates the rate at which the fuel is

burned and the amount of heat produced. A trial and

error approach will establish settings to suit personal

preference.

1.7 Extractor fans or cooker hoods must not be placed in the

same room or space as this can cause appliance to emit

fumes into the room.

AIR CONTROLS

Double Air Systems

1.8 Do not obstruct inside or outside ventilation required for

the safe use of this appliance.

This Yeoman appliance has a double air system, providing

cleaner burning and greater efficiency and control (see

Diagram 2).

1.9 Do not make unauthorised changes to the appliance.

1) Airwash - air drawn over the window cleans the glass.

The source of Primary Combustion air when burning wood.

1.10 The chimney must be swept at least once a year (see User

Instructions, Section 14).

2) Primary Air - for use with solid fuel and when lighting

wood fires.

1.11 Do not connect, or share, the same flue or chimney

system with another appliance.

1.12 This appliance is designed to be used with the doors shut.

‡

In the U.K. these products must conform to BS 6539,

Fireguards for use with solid fuel appliances.

If appliance is operating unattended they must conform to

BS 3248

*Registered on the Competent Persons Scheme (GB only)

see page 35 / INFO (Republic of Ireland).

USER INSTRUCTIONS

HEATING SYSTEM CONTROLS

CONTROLS, GENERAL

1.18 The controls fitted to the system will provide two

functions:

—To control the comfort level in the house.

—To maintain safety in the event of misuse or

mechanical failure.

COMFORT CONTROLS

1.19 A programmable timer switches the pump on when heat

is required and off when it is not.

The timer, when combined with a room thermostat and

/ or thermostatic radiator valves, enhances the comfort

levels in the house.

PR8857

For Air Controls see the diagram over.

Some room thermostats combine the function with

the timer and can be programmed to reduce the room

temperature rather than turning the system off. This is

effective in not allowing rooms to become too cold and

speeding up recovery time.

Use the tool provided to operate the air controls.

Do not place tool on hot surfaces (e.g. top of stove).

1.20 The hot water cylinder can also be fitted with a

thermostatic valve which turns off the flow when the

cylinder has reached the desired temperature, but the

heat leak radiator will have to be bigger to cope with the

extra load when the tank is isolated.

Airwash Control

OPEN

SAFETY CONTROLS

1.21 A high limit thermostat is fitted to the gravity flow pipe

set at 80˚C. This thermostat should be connected to the

pump so that the pump is turned on if the temperature

exceeds 80˚C. This will prevent accidental boiling in the

gravity circuit.

PR8932

Primary Control

PR8934

1.22 It is also recommended to fit a low limit thermostat on

the central heating return set at 45˚C. This thermostat will

turn the pump off if the return temperature falls below

45C. This will prevent corrosion and condensation within

the stove.

OPEN

DOOR OPERATION

1.14 Use a protected gloved hand to operate.

NOTE – Further information on solid fuel central heating

systems can be found in the HETAS engineers training

manual.

DO NOT OPEN THE DOOR WITH BARE HANDS

To Open and Close

Rotate handle and pull door to open

PR8935

PR8936

USER INSTRUCTIONS

2.6 Precautions must be taken to ensure that this build up of

WARNING

condensate does not overflow from the appliance onto

any surrounding fabric of the room e.g. carpets.

Properly installed, operated and maintained this

appliance will not emit fumes into the room.

NOTE - THIS CONDENSATION IS NORMAL DURING

FILLING AND DOES NOT INDICATE A FAULTY OR

LEAKING STOVE.

Occasional fumes from de-ashing and refuelling may occur.

NORMAL RUNNING

Persistent fume emission is potentially dangerous and

must not be tolerated.

2.7 During normal running this condensation should be

minimal if the system is fitted with the low limit thermostat

as detailed in 1.22 (above). This low limit thermostat

prevents the system pump from running until the stove has

reached temperature.

If fume emission does persist:

—Open doors and windows to ventilate the room.

—Allow fire to burn out and safely dispose of fuel from the

appliance.

SEASONAL USE

2.8 If this appliance is unused for lengthy periods of

time it should be periodically checked to ensure that

condensation is not building up within the stove.

—Check for chimney blockage and clean if required.

—Do not attempt to relight until the cause of the emission

has been identified and corrected. If necessary seek

expert advice.

NOTE – THIS CONDENSATION IS NORMAL AND DOES

NOT INDICATE A FAULTY OR LEAKING STOVE.

All open flued appliances can be affected by temporary

atmospheric conditions which may allow fumes to enter

the house. Because of this it is recommended that an

electronic carbon monoxide detector conforming to

BSEN50291 be fitted and maintained.

If the stove is going to be unused for very long periods of

time it is recommended to drain the system.

3. RECOMMENDED FUELS

2. USING THE APPLIANCE FOR THE FIRST

TIME

3.1 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.

2.1 To allow the appliance to settle and fixing glues and paint

to fully cure:

—Operate the appliance at a low temperature for first

Wood Length

few days.

2.2 Do not touch the paint during the first period of use.

2.3 During this time the appliance may give off some

unpleasant odours:

—Keep the room well ventilated to avoid a build-up of

fumes.

CONDENSATION

Appliance

Wood Length

CL8

400mm

CAUTION WHEN FILLING

2.4 When filling the boiler with water for the first time,

the cold water entering the water jacket can cause

condensation to form on the surfaces of the appliance

(inside and outside).

Poor quality timber:

—Causes low combustion efficiency.

—Produces harmful condensation.

—Reduces effectiveness of the airwash and life of the

appliance.

2.5 In certain conditions this condensation could result in a

considerable amount of water, in some cases enough to fill

the bottom of the appliance. This could be even worse if

the house has recently been re-decorated, wet plastered

or any other work has been undertaken which could result

in high humidity.

Do not burn construction timber, painted, impregnated

/ treated wood, manufactured board products or pallet

wood.

USER INSTRUCTIONS

3.2 Solid fuel

Burn only anthracite or manufactured briquette smokeless

fuels listed as suitable for use with closed heating

appliances.

Do not burn bituminous coal, ‘petro-coke’ or other

petroleum based fuels as this will invalidate the product

guarantee.

3.3 Fuel consumption

Fuel Consumption

Kg/hour

Wood

Description

Briquette

Smokeless fuel

—Leave the door slightly open as the fire establishes and

the glass warms to avoid the build-up of condensation.

Yeoman CL 8HB

4.8

2.1

—Add larger pieces of wood. Too many logs may smother

the fire.

3.4 For advice on suitable solid fuels contact your local

approved coal merchant*.

Do not load fuel above the log guard and the base of the

baffle at the back of the firebox (see

Diagram 6).

A number of factors can affect the performance of the

appliance (see User Instructions, Section 6).

4. LIGHTING THE APPLIANCE

4.1 For best results:

—Set air controls (see Diagram 4).

Airwash: Fully Open

Base

baffle

PR8936

Log Guard

—Close the door.

Primary Air: Fully Open

PR8934

—Place firelighters or paper and dry kindling wood on the

grate.

—Light the paper or firelighters (see Diagram 5).

*In the U.K.

Ring the Solid Fuel Association advice line on

0845 601 4406 for details or visit their web site at

www.solidfuel.co.uk

USER INSTRUCTIONS

—Rake the embers evenly over the firebed and open the

5. RUNNING THE APPLIANCE

Airwash control fully for a few minutes before

re-fuelling.

BURNING WOOD:

Do not refuel when a large amount of flames are

present in the firebox as this could cause smoke or

flames to spill into the room.

5.1 This appliance gives out its heat in two ways:

—Directly into the room in which it is fitted through

convection and radiation.

Close the doors immediately after refuelling.

—Hot water to heat radiators and domestic hot water.

The output to hot water varies depending on how

quickly the fuel is being burnt. Fore more detail see the

graph on page 13.

5.3 Burn new logs at a high temperature for a few minutes

before adjusting the Airwash control. Refuel little and

often for clean, efficient burning.

Do not load above the log guard or base of baffle.

5.2 Only for use with recommended fuels, see Section 3 for

full details.

5.4 Do not burn large amounts of fuel with the Airwash

control closed for long periods of time. This reduces the

glass cleaning effect of the Airwash and causes tars and

creosotes to build-up in the appliance and flue system.

—Close the Primary Air control and use the Airwash to

control the burn rate when the appliance is at optimum

operating temperature (see Diagrams 7 & 8).

5.5 When in use, running the appliance at a high temperature

for a short period reduces tars and creosotes.

5.6 Experience establishes settings to suit personal preference.

Do not burn construction timber, painted,

impregnated / treated wood, manufactured board

products or pallet wood.

5.6 BURNING SOLID FUEL

To burn smokeless fuels a cast iron multi-fuel grate must

be fitted.

Only for use with recommended fuels (see User

Instructions, Section 3).

5.7 Set air controls as shown in Diagram 9.

PR8012

Airwash

Airwash: Adjust

PR8937

—Wood burns best on a bed of ash (approx. 25mm (1")

deep).

Primary Air

PR8933

USER INSTRUCTIONS

5.8 De-ash the firebed before re-fuelling (see User

6. BURNING TIPS

Instructions, Section 7).

Open the Primary Air Control fully to establish a glowing

bed before adding new fuel.

6.1 Fuel Quality (Wood)

Use wood with a moisture content of less than 20%.

Seasoned logs have the bark beginning to lift and peel away

and cracks radiating from the centre. They feel lighter than

fresh cut wood of a similar size and sound hollow when

struck against each other. Logs should not feel damp or

have moss and fungal growths.

Burn new fuel at a high temperature (see Diagram 7) for a

few minutes before adjusting the Primary Air Control to

the desired setting.

Refuel little and often for clean, efficient burning.

Symptoms related to wet wood:

5.9 Experience establishes settings to suit personal preference.

—Difficulty starting and keeping a fire burning well.

—Smoke and small flames.

5.10 Do not burn large amounts of fuel with the Primary Air

Control on a low combustion setting for long periods of

time. This reduces the glass cleaning effect of the Airwash

and causes tars and creosotes to build-up in the appliance

and flue system.

—Dirty glass.

—Rapid creosote build-up in the chimney.

—Low heat output.

—Short burn times, excessive fuel consumption and

blue/grey smoke from the chimney.

5.11 When in use, burning the appliance at a high temperature

for a short period reduces tars and creosotes.

Burn at a high temperature for a short period each day

to avoid large build-ups of tars and creosote within the

appliance and the flue system.

5.12 Only anthracite or smokeless fuels suitable for use in

closed appliances must be burned in this appliance.

Use Stovax Protector chimney cleaner to reduce this

problem.

5.13 Do not burn bituminous coal, ‘petro-coke’ or other

petroleum based fuels as this invalidates the product

guarantee.

6.2 Fuel Quality (Solid Fuel)

Use recommended solid fuels approved for use with closed

appliances.

5.14 Do not load fuel above the log guard and the base of

the baffle at the back of the firebox (see Diagram 5).

Symptoms related to unsuitable fuels include:

REFUELLING

—Difficulty starting and keeping a fire burning well.

—Smoke and small flames.

—Dirty glass and/or fire bricks.

—Short life span for Grate and Baffle.

—Permanent staining of glass.

5.15 De-ash the fire bed before refuelling, see Ash Removal

—Open the Primary air control fully to establish a

glowing bed before adding new fuel.

—Do not refuel when a large amount of flame is

present in the firebox as this could cause smoke or

flames to spill into the room.

6.3 Air inlets puffing smoke

Combustion gases can build up in the firebox and ignite

as small explosions, causing smoke to puff out of the air

inlets and other openings. This occurs if the air controls

are shut soon after adding new fuel to a very hot fire. Stop

by opening the air controls to increase combustion air and

burning rate.

—Close the doors immediately after refuelling.

—Burn new fuel at a high temperature for a few minutes

before adjusting the Primary air control to the desired

setting.

6.4 Flue Draught

The chimney has two main functions:

—Refuel little and often for clean, efficient burning.

1) To safely remove the smoke, gases and fumes from the

house.

2) To provide a sufficient amount of draught (suction) in the

appliance ensuring the fire keeps burning.

5.16 Do not re-fuel the stove above the level of the log guard

or the base of the baffle.

THERMOSTAT OPERATION

5.17 This appliance can be fitted with a thermostat kit to

control the temperature of the boiler. See the instructions

included in the kit for operation details.

In the U.K.

* Registered on the Competent Persons Scheme (GB only)

see page 35 / INFO (Republic of Ireland).

** This should be done by a HETAS registered chimney

sweep, see page 35, who will issue you with a certificate.

USER INSTRUCTIONS

Draught is caused by the rising hot air in the chimney when

the appliance is lit.

7. ASH REMOVAL

Symptoms of poor performance related to flue draught

include:

7.1 Multi-fuel stove

—Excessive fuel consumption (high flue draught).

—Poor burning control, overheating (high flue draught).

—Wind noise from air controls (high flue draught).

—Difficulty getting a fire going and keeping it burning well

(low flue draught).

Riddle with the tool provided (see Diagram 10).

—Low heat output (low flue draught).

—Smoke entering room when doors opened (low flue

draught).

The construction, position, size and height of the chimney

all affect the performance of the flue draught.

Other factors effecting the flue draught include:

Rotate to

operate

—Trees or other buildings nearby causing turbulence.

—Outside temperature.

—Outside weather conditions.

PR8861

—Incorrect additional ventilation to building.

—Blocked flue / chimney.

Open Door (see Diagram 11).

For advice on the correction of persistent flue problems

consult a qualified solid fuel heating engineer before

continuing to use the appliance.

6.5 Weather conditions

The weather conditions outside the building can effect the

burning performance of the appliance. These could include:

Weather Conditions Problem

Effect

Windy days

Buildings/Obstacles

cause turbulent air

around chimney.

Smoky Appliance

Calm days

Oversized Chimney. Smoky Appliance

PR8729

Damp / Rainy days

Flue temperature

not hot enough.

Rain water inside

chimney.

Lighting and

burning problems

—Using gloves carefully remove ashpan with the tool

provided. Heat can remain long after use.

—Place the ash into a Stovax Ash Caddy (Stovax Part No.

4227) or other suitable container.

To reduce these problems:

—Remove ash at least once every week when burning

—Use good quality kindling wood to start the fire.

—Burn initially at a high temperature for a short period.

—Fit a rain cowl to the chimney.

wood.

—Do not place hot ash in a container made from plastic or

any other combustible material.

Your installer should advise you on possible solutions.

If the appliance emits smoke into the room continuously:

—Close the air controls and allow the appliance to go out.

—Ventilate the room to clear the fumes.

Do not re-light the appliance until the problem is solved.

USER INSTRUCTIONS

—Fit the plug supplied into the hole where the riddling

8. WOOD BURNING TRAY

mechanism is normally located and secure with

bolt and clamp (also supplied, see Diagram 15).

8.1 In order to burn wood continuously in this appliance a

Wood Burning Tray should be fitted (see Diagram 12).

Clamp

Plug

Bolt

PR8865

Front edge

PR8862

—Replace the log bar.

8.2 Remove the multi-fuel grate from the appliance (see

Installation Instructions, Section 5).

9. ExTENDED BURNING

8.2 To fit the Wood Burning Tray:

9.1 It is possible to get the appliance to burn for extended

periods of time. In order to do this:

—Remove the log bar.

—Hold the tray flat with the front edge pointing forwards

—De-ash prior to final refuelling.

(see Diagram 12).

—Set air controls to low combustion settings.

—Tilt diagonally and insert through the front of the stove

(see Diagram 13).

This will gradually blacken the glass but it will clear when

operated at a high temperature for a short period.

—Use smokeless fuel or small, thick logs.

10. OVER-FIRING

10.1 Do not over-fill with fuel or run at high temperatures for

long periods or over-firing can occur. If the flue pipe, flue

collar or top plate glow red the appliance is over-firing.

Close the air controls to reduce the temperature.

PR8863

10.2 Over-firing can cause permanent damage to the

appliance.

—Place tray flat on the fixings on the firebed (see

Diagram 14).

PR8864

USER INSTRUCTIONS

Check that the door shuts properly and creates an effective

seal. Leaking door seals prevent the appliance working

properly.

11. CHIMNEY FIRE

11.1 If a chimney fire occurs:

Do not use aerosol sprays near an operating appliance.

—Shut all air controls immediately.

—Evacuate the building.

13. CLEANING GLASS

—Call the fire brigade.

Keep the glass clean with correct use of the Airwash system

and good quality fuel.

—Do not re-enter the building until it is confirmed safe.

13.1 Sometimes additional cleaning may be required.

This can be done as follows:

11.2 Do not use the appliance after a chimney fire until:

a) It has been inspected by a registered installer*,

confirming the appliance is safe to use.

—Allow appliance to cool fully. Do not clean hot glass.

—Use a soft cloth and Stovax Glass Cleaner.

13.2 Before re-lighting the appliance dry the glass fully.

13.3 Do not use abrasive cleaner or cleaning pads.

b) The chimney system has been inspected and swept by a

chimney sweep, confirming the system is structurally sound

and free from obstruction**.

c) It is repaired as required before re-use. Use only

genuine Yeoman replacement parts to keep your appliance

in safe, efficient working order.

14. CHIMNEY SWEEPING

12. GENERAL CLEANING

14.1 To maintain safe and efficient use of the appliance, the

chimney/flue must be inspected and swept at least once a

year by a qualified chimney sweep**.

12.1 Clean and inspect the appliance regularly, especially in

periods of heavy use. Regular cleaning and maintenance

will help give many years of safe use.

If the appliance is used continuously throughout the year,

or it is used to burn wood or smokeless fuel, more frequent

sweeping is recommended.

Allow appliance to cool thoroughly to avoid risk of burns.

Clean regularly, according to level of use.

The best time to have the chimney swept is at the start of

the heating season.

Remove the ash completely (see User Instructions,

Section 7).

The above applies even if burning smokeless fuels.

14.2 The chimney, any connecting flue pipe and the appliance

flue ways, if incorporated, must be regularly cleaned.

Check the internal components for damage. Do not use

the appliance if any parts are broken or damaged. Replace

damaged parts with genuine Yeoman replacement parts to

keep the appliance in safe, efficient working order.

14.3 Ensure adequate access for cleaning where it is not possible

to sweep through the chimney.

Check for obvious build up of soot, ash or debris above the

flue baffle(s) (these can be found in the upper part of the

firebox). Use a torch if necessary.

14.4 If the chimney is believed to have previously served an

open fire it must be swept a second time within a month of

regular use after installation.

If there are any signs of a build up of debris above the flue

baffle(s) either:

—Arrange for the chimney to be swept (see User

Instructions, Section 14).

—Remove the baffle and clear the debris (see Installation

Instructions, Section 3).

To refresh painted finishes use Stovax Riva Midnight black

metallic paint.

In the U.K.

* Registered on the Competent Persons Scheme (GB only)

see page 35 / INFO (Republic of Ireland).

** This should be done by a HETAS registered chimney

sweep, see page 35, who will issue you with a certificate.

Wipe dry with a soft clean cloth be fore relighting. Always

dry appliance to avoid rust.

Do not use abrasive cleaner or cleaning pads.

USER INSTRUCTIONS

130°C - 250°C (270°F - 480°F). Failing to close down the

15. CARE OF STOVE

Primary Air Control once the appliance has heated up to

this range may cause the appliance to exceed the ideal

temperature range and to over-fire. Over-firing can cause

permanent damage to the appliance and invalidates your

warranty. Burn with the Airwash Control fully open for

approximately 20 minutes to cure this.

Stovax has a range of cleaning and maintenance products

and accessories to keep your appliance in good working

order. Your Yeoman retailer can advise you on suitable

items for your stove and provide genuine spare parts

such as replacement glass and door sealing rope. View

the extensive range at www.stovax.com by clicking on

Accessories. In addition, an annual service by a competent

engineer is recommended to keep your stove in the best

possible condition.

The problem may be caused by damping down the

appliance during periods of extended burning.

Problems with the flue, in particular insufficient air pull.

If the flue is not working efficiently the glass can blacken.

A flue which has too much downdraft may be too short,

needs lining, or has too many bends. This can also cause

blackening of the stove glass. Contact the installer or a flue

specialist for advice.

17.2 Riddling Mechanism Jamming

This occurs when ash builds up under the riddling grate

preventing movement. To rectify:

—Lift out the riddling mechanism (see Installation

Instructions, Section 5) and remove all ash.

—Replace riddling mechanism when cleaning is complete.

16. SEASONAL USE

—De-ash and clean the inside of the appliance regularly

to avoid build up of ash and subsequent jamming of

mechanism.

16.1 Clean and service the appliance if it is not used during the

warmer periods of the year, as detailed in the Maintenance

and Servicing section.

17.3 Glass cracking

Do not over tighten the screws on the glass clips when

replacing the glass. This causes stress and the intense

temperature changes can cause the glass to crack. For

replacement glass contact your local Yeoman retailer.

16.2 Set the air controls to 50% to keep the appliance ventilated

and stop the build-up of any moisture inside.

16.3 Before re-lighting the appliance:

—Remove the baffle.

17.4 Appliance is producing tar

This can be identified by:

—Clear any debris that may have accumulated.

—Check the flue is clear of any blockages.

—A very strong pungent smell shortly after the appliance is

lit and heats up.

—Glass blackening.

17. TROUBLESHOOTING TIPS

—Thick, brown, sticky tar oozing from the pipe joints.

17.1 Stove glass blackening

This is caused by burning damp wood and running the

appliance at too low a temperature.

This has four possible causes:

Incorrect use of Airwash

See User Instructions, Sections 1, 4 and 5 for the correct use

of the air controls.

Use well seasoned wood and operate the appliance within

the ideal temperature range.

Tar is a major cause of chimney fires. If the appliance

experiences problems with tar build up consult a chimney

sweep before continued use of the appliance.

Burning unseasoned wood

See User Instructions, Section 3 to identify when wood is

ready for burning.

Stove operated at too low a temperature

A stove pipe thermometer can identify this problem (Stovax

part no 3046). The ideal working temperature range is

USER INSTRUCTIONS

17.5 All or some of the radiators do not get hot

Open up the airwash to make

a hotter fire

If fitted set the thermostat to a

higher setting

Burning wood

Wood is burning too

slowly

Burn dryer wood

Burn better quality wood

Reduce ashbed to 1" thick

Open up the primary air to

make a hotter fire. If fitted,

set the thermostat to a higher

setting

Burning Solid

Mineral fuels

Fuel is burning too

slowly

The fire needs riddling to

remove ash. De-ash the fire

Empty the ash pan.

Not enough fuel.

Stove is not producing

much heat.

All Fuels

Bleed the radiators to ensure

there are no air locks.

System faults

Incorrect system design seek

professional assistance

Too many radiators in the

system exceeding the stoves

capabilities.

17.6 In the unlikely event of a problem that cannot be solved

by these tips contact your installer or retailer for help.

TECHNICAL SPECIFICATION

YEOMAN

Model

Yeoman YM-CL8HB

Wood

Nominal Heat Output

Solid Fuel

8.6

1.25

0.05

150

mm Wg

inch Wg

Flue Draft at Nominal Heat Output

Flue Outlet Size (Top or Rear Option)

All Fuels

inch

Minimum Hearth Type Required

Weight

Constructional = CH

140

Seasoned wood (less than 20%

moisture content)

Wood

Briquette smokeless fuel suitable

for closed appliances.

(Ancit - Phurnacite - Taybrite -

Homefire ovals)

Recommended Fuels

Solid Fuels

BOILER OUTPUT CHART

1. STANDARD FEATURES

•

Primary Air (under grate air for full multi-fuel use).

Airwash (for wood burning / clean glass).

Riddling grate system for clean de-ashing.

Top or rear flue exit option.

2. PACKING LIST

•

User & Installer Instructions

Guarantee card

Pair leather gloves

Ashpan

Ashpan tool

Riddling tool

PR8233

TECHNICAL SPECIFICATION

YEOMAN DIMENSIONS

PR8852

Cast Top Plate

PR8753

incl. feet @ 6mm on underside

Description

F (Ø)

Yeoman

563

572

363

105

478

153/6"

449

441

225

430

224

317

YM-CL8HB

All dimensions are in mm (25.4mm = 1")

SITE REQUIREMENTS

1.4 Suitable access must be provided to enable the collection

1. FLUE OR CHIMNEY

and removal of debris.

1.5 The flue must be swept and inspected when the appliance

is installed.

1.1 The flue or chimney system must be in good condition.

It must be inspected by a competent person and passed for

use with the appliance before installation.

1.6 The flue draught must be checked with all windows and

doors closed and any extraction fans in this, or adjoining

rooms, running at maximum speed (see next section for

additional ventilation requirements).

Products of combustion entering the room can cause

serious health risks.

1.2 The following must be checked:

Max. Draught = 2.0mm Wg

Min. Draught = 1.0mm Wg

—The construction of the masonry chimneys, flue block

chimneys and connecting flue pipe system must meet

†

the requirements of the Building Regulations .

—A flexible flue liner system can be used if certified for

use with solid fuel systems and installation complies with

†

manufacturer’s instructions and Building Regulations .

The flue liner must be replaced when an appliance is

replaced, unless proven to be recently installed

and in good condition.

In the U.K.

*The design of the flue and chimney systems and products

used should meet the requirements of ADJ along with any

other relevant, National or European standards that may

apply. Products should be specified with regard to the type

of appliance, position within the building, fuels to be used

and appliance operating temperatures.

—If it is necessary to fit a register plate it must conform to

†

the Building Regulations .

—The minimum height of the flue or chimney must

be 4.5m from the hearth to the top of the flue, with no

horizontal sections and a maximum of 4 bends.

Bends must have angles of less than 45 degrees from the

vertical.

**This should be done by a HETAS Approved Chimney

Sweep (UK only) see page 27 / INFO registered (Republic

of Ireland only) who will issue you with a certificate.

—Ensure the connecting flue pipe is kept a suitable

distance from any combustible material and does not

form part of the supporting structure of the building.

† Building Regulations Document J

Flue Plate:

Where a hearth, fireplace, flue or chimney is provided or

extended (including cases where a flue is provided as

part of refurbishment work), information essential to the

correct appliance and use of these should be permanently

posted in the building, to meet Requirement J4 of the

Building Regulations (England and Wales), F3.12 (Scotland).

—Make provision to remove the appliance without the

need to dismantle the chimney.

—Any existing flue must be confirmed as suitable for

the new intended use as defined in the Building

†

Regulations .

—The flue or chimney systems must be inspected and

swept to confirm the system is structurally sound and

free from obstructions**.

Additional:

A new factory made system that complies to EN 1856; Part 1

can be used providing installation is to the requirements of:

i) BS 7566 Parts 1 -4

—If the chimney is believed to have previously served

an open fire it must be swept a second time within

a month of regular use after installation to clear

any soot falls that may have occurred due to difference

in combustion levels.

ii) the manufacturer's instructions

iii) Building Regulations.

For a guide containing information on Chimneys and Flues

contact:

The British Flue & Chimney Manufacturers’ Association,

—The flue exit from the building must comply with local

FETA

†

building control rules .

2 Waltham Court

Milley Lane

Hare Hatch

Reading

—Do not connect or share the flue or chimney system

with another heating appliance.

Berkshire RG10 9TH

1.3 Do not connect to systems containing large voids or spaces

over 230mm square.

Tel: 0118 9403416

e-mail: [email protected]

SITE REQUIREMENTS

1. FLUE OUTLET POSITIONS

Horizontal

Measurement

Terminal

Flue

150mm

max

Vertical

Measurement

Adjacent

Building

Insulation

The vertical measurement is the lowest from either the

point of discharge or 150mm above insulation.

IMPORTANT: Seek specialist

advice if installing in a dwelling

with a thatched roof

Position On Roof

On ridge or within 600mm

Elsewhere on roof

Minimum Clearances

600mm above ridge

2300mm horizontally from roof surface and:

a) 1000mm above highest point of flue exit

from roof or

b) as high as the ridge

On pitched, within 2300mm horizontally to

openable window, dormer

1000mm above top of opening

600mm above top of building

Within 2300mm of another building

1. HEARTH DIMENSIONS

2.1 The appliance must stand on a non-combustible

constructional hearth which is at least 125mm thick with

the minimum dimensions as shown in diagram.

2.2 If this appliance can be installed in an elevated setting it

is recommended to increase the 225mm hearth depth to

safely contain any falling logs or embers. The higher the

appliance is installed the deeper the hearth should be to

avoid scorched floor coverings.

2.3 The building must have a suitable load-bearing capacity for

the hearth and appliance. Consult a structural engineer

for advice before proceeding.

2.4 When fitting into an existing hearth check that the hearth

complies with current construction regulations and is at least

the minimum sizes shown.

150mm

minimum

150mm

minimum

150mm

minimum

225mm

minimum

Constructional Hearth

840mm minimum

2.5 If there is no existing fireplace or chimney it is possible to

construct a suitable non-combustible housing and hearth

setting. The flue must be installed in accordance with all

local and national regulations and current rules in force.

Constructional Hearth

840mm minimum

PR8730

Check if adding a new chimney to your property requires

planning permission.

SITE REQUIREMENTS

WALLS NExT TO A HEARTH

Solid, non-combustible

material e.g. masonry or

concrete

Thickness W

150mm

minimum

150mm

minimum

PR8731

Position of Appliance & Hearth in relation to walls

Requirement for the walls

Distance of hearth from wall

'C'

Distance of Appliance to wall

Min thickness of Wall

Min height of wall

'H'

'W'

0mm

0mm - 50mm

200mm

Height of appliance + 300mm

1200mm from the hearth (take largest

dimension)

0mm

51mm - 300mm

150mm +

75mm

0 - 150mm

150mm +

1200mm

300mm +

No Minimum Requirement

Suitable clearance should be allowed around the stove to enable the correct fitting and maintenance of the appliance.

Any clearances should be confirmed by making a site survey and a physical check of wall thickness and dimensions.

Note:

80mm

When installing a Multi-fuel appliance a

minimum gap of 80mm must be left on the

Right Hand Side so that the riddling tool

can be comfortably engaged in the socket.

PR8589

PRE-INSTALLATION CHECKS

1. FLUE

Model

Yeoman YM-CL8HB

inch

150

Without Liner System

Round (diameter)

135

5½

150

Without Liner System (square)

Minimum Dimension

Flue / Chimney Size

With Liner or Factory Made

System (diameter)

4.5

Flue / Chimney

minimum height*

feet

*When measured from the top of the flue, with no horizontal sections and a maximum of 4 bends with angles of

less than 45°

PRE-INSTALLATION CHECKS

2. VENTILATION

2.1

2.2

Additional ventilation will be required to suit the

requirements of Building Regulations. This must be provided

using a permanently open air vent, of the size listed, which

is positioned so that it is not liable to be blocked both inside

and outside the building.

The appliance will require additional ventilation as listed*:

A) Building design permeability greater than 5.0m³ (h.m²).

B) Building design permeability less than 5.0m³ (h.m²).

Model

YM-CL8HB

mm²

cm²

in²

4400

44.00

7.10

Additional Ventilation

2.6

Extractor fans or cooker hoods must not be placed in the

same room or space as this can cause the appliance to emit

fumes into the room.

mm²

cm²

in²

7150

71.50

11.54

2.7

2.8

Increase air supply provisions where a room contains multiple

appliances.

The need for additional ventilation may also be identified

during the commissioning procedure and should be provided

if needed.

2.3

2.4

2.5

Permanent air vents should be non-adjustable and positioned

where they are unlikely to be become blocked.

If vents open into adjoining rooms or spaces there must be an

air vent of at least the same size direct to the outside.

An inadequate air supply to the room is potentially

dangerous.

Site the vents where cold draught is unlikely to cause

discomfort. This can be avoided by placing vents near ceilings

or close to the appliance, see diagram.

2.9

If any checks reveal problems do not proceed with the

fitting of the appliance until they have been rectified.

* Changes to Document J, England & Wales, from 01/10/2010

INSTALLATION INSTRUCTIONS

1.1 Take care when installing the appliance. Careless

LEGAL REQUIREMENTS

handling and use of tools can damage the finish and/or

area.

Before installation and/or use of this appliance please

read these instructions carefully to ensure that all

requirements are fully understood.

Choose top or rear flue exit (see Diagram 1).

Hexagonal Nuts

& Washers

The appliance must be fitted by a registered installer*,

or approved by your local building control officer.

Hexagonal Bolts

It is very important to understand the requirements of the

†

‡

national Building Regulations and standards , along with

any local regulations and working practices that may apply.

Should any conflict occur between these instructions and

these regulations then the regulations must apply.

Your local Building Control Office can advise regarding the

requirements of the regulations.

Rear

Top

PR8007

PR8732

The appliance must be fitted by a registered installer* or

approved by your local building control officer.

—Fit flue collar and blanking plate to suit.

Works must be carried out with care to meet the

requirements of Health and Safety** and comply with

the Health and Safety rules**, and any new regulations

introduced during the lifetime of these instructions.

Particular attention should be drawn to:

—Attach flue collar to top or rear with hexagonal bolts (see

Diagram 1).

—Seal with fire cement.

—Secure blanking plate with hexagonal bolts

(see Diagram 2).

—Handling: The appliance is heavy. Adequate facilities

must be available for loading, unloading and on site

handling.

—Fire Cement: Some fire cement is caustic and must not

come into contact with the skin. Protective gloves

must be worn. Wash hands thoroughly with plenty of

water after contact with skin.

Hexagonal Nuts

& Washer

—Asbestos: This appliance contains no asbestos. If there

is the possibility of disturbing any asbestos in the

course of installation seek specialist guidance and use

appropriate equipment.

—Metal Parts: Take care when installing or servicing the

stove to avoid personal injury.

A faulty installation can cause danger to the inhabitants

and structure of the building.

PR8732

For users of this appliance:

1.2 Top flue pipe installation:

Your building insurance company may require you to

inform them that a new heating appliance has been

installed on your property. Check that your cover is still

valid after installing the appliance.

—Lift appliance into position, taking care not to damage

the hearth finish.

—Level the appliance.

1. INSTALLING THE APPLIANCE

—Connect appliance to the chimney using flue pipe.

—Secure with self tapping screw.

—Seal the connecting joints.

Each installation is unique to the property so it is not

possible to give details to suit every setting. The installation

†

must comply with Building Regulations and be made using

best practice construction methods.

Many fireplace openings have a supporting lintel. Do not

remove without supporting the remaining structure of the

building. Do not support the structure with the appliance

or the flue system.

†

England and Wales – Document J / Scotland - Part F/

Document J (Republic of Ireland only).

‡

BS 8303, BS 6461, BS 7566

*Registered on the Competent Persons Scheme (GB only)

see page 35 / INFO (Republic of Ireland).

**Health and Safety at Work Act 1974

INSTALLATION INSTRUCTIONS

—Secure with self tapping screw.

—Seal the connecting joints.

Do not use a 90˚elbow to make this connection.

The flue must be installed in accordance with manufacturers

instructions.

Seal Collar with Fire Cement

Self tapping screw

PR8009

Tee

The flue must be installed in accordance with

manufacturers instructions.

Size Stovax Part No.

4616

Flue Pipe 915mm (3ft)

Size Stovax Part No.

4602

Cap

PR8735

Self tapping

screw at rear

To chimney connection

as detailed in building

regulations

Seal flue collar

with Fire Cement

Elbow with access cover

Size Stovax Part No.

4612

PR8733

600mm min

1000mm max

unsupported

To chimney connection

as detailed in building

regulations

Flue Pipe 915mm (3ft)

Size Stovax Part No.

4602

Elbow with access cover

Size Stovax Part No.

600mm min

1000mm max

unsupported

4612

PR8736

2. REMOVAL OF THE LOG GUARD

Flue Pipe 915mm (3ft)

Size Stovax Part No.

2.1 To remove the Log guard:

4602

—Lift Log Guard clear of the supporting brackets.

—Rotate to clear the sides of the door opening.

Do not use appliance without the log guard in position.

PR8734

1.3 Rear flue pipe installation:

—Insert a tee into the flue collar. The tee piece is used as

cleaning access.

—Lift appliance into position, taking care not to damage

the hearth finish.

—Level using adjustable bolts.

—Connect tee to the chimney using flue pipe.

INSTALLATION INSTRUCTIONS

3. FITTING AND REMOVAL OF

THE BAFFLE

No tools are required.

Front

support

3.1 To maintain efficient combustion the appliance is fitted with

a baffle system that allows for secondary combustion (see

Diagram 4).

Rear

support

AR2405

Ensure baffle sits

on front supports

Baffle In Place

AR2406

PR8885

Do not modify the baffle.

3.2 First remove the log guard from the stove to give access to

the firebox.

4. REMOVAL OF RIDDLING MECHANISM

3.3 Use both hands to lift the baffle vertically and slide to one

side (see Diagram 5). Always wear gloves when handling

appliance parts.

4.1 THE MULTI-FUEL GRATE CAN BE REMOVED FOR

CLEANING TO MAINTAIN GOOD WORKING

CONDITION.

To remove the grate:

—Remove the baffle (see Section 3).

—Remove the log guard to enable access (see Section 2).

—Remove the ashpan.

—Remove the riddling bars (see Diagram 7).

FOR CLARITY, THE FOLLOWING DIAGRAMS DO NOT

INCLUDE ILLUSTRATIONS OF THE DOORS.

AR2404

—Using both hands rotate the baffle to remove from the

firebox through the door opening.

3.4 To replace the baffle repeat the above steps in reverse,

ensuring the baffle fits over the supports on the sides of the

interior (see Diagram 6).

INSTALLATION INSTRUCTIONS

Lift bars to

remove

PR8875

PR8867

To remove Multi-fuel frames:

—Remove Rear Bar (see Diagram 8).

—Lift frames from the front.

—Remove right hand side first through the front of the

stove.

—Repeat for the left hand side.

PR8868

To remove the Riddling Boss:

—Use the 5mm hex key as shown in Diagram 9.

PR8876

—Replace in reverse order.

5mm

Hex Key

Fixing

Bolt

Riddling

Boss

PR8870

—Unscrew the boss.

—Remove Riddling Cam Bar (see Diagram 10).

INSTALLATION INSTRUCTIONS

6.2 Place the cast top plate feet down on top of the appliance.

5. HEARTH FIxING

—Ensure the cast top is flush with the front and sides of the

appliance.

5.1 If the appliance is to be fixed to the hearth then use the

hearth mount locking tabs shown in Diagram 12.

—For the top flue version, position the cutout over the flue

ring.

—Position the appliance where required on the hearth

and mark the location of the two fixing holes in

the hearth mounts.

Line up edges

of cast top

—Drill the required sized holes into the hearth.

—Use suitable fasteners to fix in place.

plate with the

appliance

PR8744

Fixing holes in

hearth mounts

PR8755

6. CAST TOP

This appliance can be fitted with an optional cast top plate.

The type of plate will depend on whether the appliance is

installed with a top* or rear flue exit.

Top Flue

Rear Flue

Yeoman CL8

yM-CL8Ct

yM-CL8Ctr

* The cast top must be fitted at the same time as the flue

connection (see Installation Instructions, Sections 1 & 6).

6.1 The cast top plate has 4 cast feet on the bottom to space it

off the top of the appliance by 6mm and allow the door to

open freely.

Cast feet

PR8756

INSTALLATION INSTRUCTIONS

3. Hot Water Cylinder

CENTRAL HEATING SYSTEM

3.1 The domestic hot water cylinder must be an indirect vented

double feed type to meet national standards** and should

have a minimum capacity of 117 litres. Houses with more

than one bathroom or a separate shower will need a bigger

tank.

1. General

This appliance gives out heat in two ways:

—Directly into the room in which it is fitted through

Fully insulate the tank.

convection and radiation.

The water draw off pipes to the taps should be in a dead

leg connection from the vent pipe.

—Hot water to heat radiators and domestic hot water.

The installation must comply with building regulations and

use best practice advice.

4. Open Vent And Cold Feed System

2. Boiler Sizing

4.1 This system must be fitted with a minimum of 22mm

diameter open vent discharging into a heat resisting feed

and expansion tank. There must be at least 25mm air gap

between the end of the pipe and the water level. The

cistern tank should have an overflow with a minimum

diameter of 22mm

2.1 It is very important to determine the correct size of

appliance for the house:

—Too big a boiler will run too hot and will not be efficient.

The cold feed must be a minimum 22mm and enter the

system as the last connection on the common boiler return.

—Too small a boiler will not maintain the desired

temperature.

The open vent and cold feed must not be fitted with any

valves, manual or automatic.

2.2 Size the boiler correctly by calculating the following heat

loads:

Do not use plastic pipe in any part of the flow and

return.

RADIATORS - the amount of heat required to run the

radiators efficiently. The correct size of radiator depends

on the required temperature for the room, the room heat

losses and the radiator manufacturer’s guides.

5. Heat Leak Radiator

HOT WATER - the amount of heat required to provide the

5.1 A heat leak radiator must be fitted in the gravity circuit to

dissipate any excess heat produced from the boiler when

connected demand is low. The domestic hot water cylinder

may not be able to disperse heat at all times due to modern

insulation. This radiator is commonly fitted in the bathroom

and should be rated at 2kW (6500 btu) or 10% of the total

boiler output.

desired amount of domestic hot water.

LOSSES – the amount of heat lost in pipe work - typically

10% of the combined radiators and hot water loads.

There are national guidelines for calculating these figures*.

2.3 Careful consideration must be given to where the appliance

is fitted. It must be sized correctly for the heat load required

and the size of the room. These requirements can be found

in the Technical Specifications.

This radiator ensures that the appliance is not shut down

completely for long periods resulting in the fire going out.

Fit the heat leak radiator in the gravity circuit using 22mm

pipe reducing to 15mm for no more than 300mm before

the radiator.

2.4 All Stovax appliances are thermostatically controlled. The

burning rate is adjusted to the demands of the connected

heat load. If the radiators do not require heat then the

thermostat will act to shut down the appliance and the

direct heat output to the room where it is fitted will reduce

(see heat output graph on page 15 to show the ratio

between direct heat output and water heat output). To

prevent the room becoming too cold, fit a thermostatically

controlled radiator as well as the appliance.

Fit the radiator with two ‘lock-shield’ valves that are set

in the fully open position and cannot be shut down. Use

diagonal connections. Do not fit thermostatic valves or

manually adjustable valves to the heat leak radiator.

INSTALLATION INSTRUCTIONS

6. Pump

9. Pump Assisted Central Heating

6.1 Where a pump is fitted into the circuit it should be

adjustable so that the flow can match the system

requirements. Fit isolation valves to enable removal for

servicing. The pump must have at least 1.5 meters of static

head.

9.1 The most common arrangement is to have a pumped

central heating circuit combined with a gravity hot water

circuit. This arrangement requires careful balancing of the

two in order to avoid the gravity circuit being starved when

the pump is running.

To overcome this problem it is common practice to fit

an injector tee where the pumped central heating return

re-joins the gravity return from the hot water cylinder. This

injector tee induces a much stronger gravity flow when the

pump runs.

7. Electrical Supply

7.1 Electrical connections must meet the requirements of

national Building Regulations* and standards**, along with

any European, local regulations and working practices that

may apply. Should conflict occur between these instructions

and these regulations then the regulations must be followed.

Only use proprietary injector tees, homemade ones are

difficult to get right.

The connection to the mains supply should allow

complete electrical isolation and only serve the heating

circuit pump.

9.2 When installing a system that has pumped central heating

and gravity hot water it is recommended to use all 4

boiler tappings. Each flow and return should be diagonally

opposite each other.

All water connections should be completed by a competent

person to meet the requirements of local water authority

by-laws.

10. Fully Pumped System

10.1 In many installations (especially new build) a fully pumped

system is the best choice to give increased control.

CONVENTIONAL PIPE WORK SYSTEMS

All pipe work must be able to operate at above 100

degrees Celsius. Any pipe work installed in an exposed

position e.g. loft space must have provision to prevent

freezing.

WARNING - To prevent the risk of boiling it is essential

to arrange the pipe work and position the hot water

cylinder and heat leak radiator so that gravity circulation

can take place when the pump is not running. Any

motorised valves fitted in this circuit must return to the

fully open position when the power is interrupted.

Ensure the pipe work system has sufficient drain

points to enable the complete removal of water for the

purposes of servicing.

11. Sealed (Pressurised) System

8. Gravity Pipe Circuit

11.1 Do not fit this appliance to sealed or pressurised systems or

an unvented hot water cylinder.

8.1 To prevent the risk of boiling it is essential to arrange the

pipe work and position the hot water cylinder and heat

leak radiator so that gravity circulation can take place when

the pump is not running. Position the cylinder and the

radiator vertically above the boiler with sufficient height to

encourage gravity flow.

12. Pipe work Diagrams

12.1 See over for a typical layout of a pumped central heating

and gravity hot water circuit.

8.2 Horizontal pipe work in a gravity system must have an

incline of at least 5mm in every 1000mm and a minimum

diameter of 28mm. Vertical pipe must have a minimum

diameter of 22mm.

8.3 Any motorised valves fitted in this circuit must return to the

fully open position when the power is interrupted.

INSTALLATION INSTRUCTIONS

See below typical layout of a pumped central heating hot water circuit with gravity.

Feed and

Expansion Cistern

Cold Water

Storage Cistern

Double Feed

indirect cylinder

Two port

normally open motorized valve

controlled by cylinder thermostat

Heat Leak radiator

with two full way lock

shield valves

High limit pipe thermostat

to bring on circulator in an

overheat situation

Low limit pipe thermostat

to prevent the pump coming on until

a minimum temperature is reached

Thermostatic radiator valves

to provide temperature zoning

Programmable room

thermostat

Pump and

isolating valves

Injector tee

to pump assist the

thermosyphon circuit when

the pump is operating

Yeoman High Output Boiler

installed to BS8303, ADJ and these installation instructions

See below typical layout of a fully pumped central heating and hot water circuit.

Cold Water

Storage Cistern

Two port

energised closed when pump

activated

Feed and

Expansion Cistern

Two port

normally open motorized valve controlled

by cylinder thermostat and programmer

Double Feed

indirect cylinder

Thermostatic radiator valves

to provide temperature zoning

Heat Leak radiator

with two full way lock

shield valves

Circulator and

isolating valves

Two port

normally open motorized valve

controlled by room thermostat

and programmer

Two channel

programmer

Yeoman High

Output Boiler

installed to

BS8303, ADJ and

these installation

instructions

High limit pipe thermostat

to bring on circulator in an

overheat situation

Low limit pipe thermostat

to prevent the pump coming on until a minimum temperature is reached

NOTE - THIS CONDENSATION IS NORMAL DURING

FILLING AND DOES NOT INDICATE A FAULTY OR

LEAKING STOVE.

HEATING SYSTEM CONTROLS

CONTROLS GENERAL

NORMAL RUNNING

1.1 The controls fitted to the system will provide two functions:

1.9 During normal running this condensation should be minimal

if the system is fitted with the low limit thermostat as

detailed in 1.22 (above). This low limit thermostat prevents

the system pump from running until the stove has reached

temperature.

— To control the comfort level in the house.

— To maintain safety in the event of misuse or mechanical

failure.

COMFORT CONTROLS

SEASONAL USE

1.2 This primarily consists of a time clock wired into the pump.

The pump is switched on when heat is required and when

it is not, the pump is switched off.

1.10 If this appliance is unused for lengthy periods of time it

should be periodically checked to ensure that condensation

is not building up within the stove.

The time clock, when combined with a room thermostat

and or thermostatic radiator valves, enhances the comfort

levels in the house.

NOTE – THIS CONDENSATION IS NORMAL AND DOES

NOT INDICATE A FAULTY OR LEAKING STOVE.

If the stove is going to be unused for very long periods of

time it is recommended to drain the system.

Some room thermostats combine the function with the

time clock and can be programmed to reduce the room

temperature rather than turning the system off. This is

effective in not allowing the rooms to become too cold and

speeding up recovery time.

NOTE – Further information on solid fuel central heating

systems can be found in the HETAS engineers training

manual.

1.3 The hot water cylinder can also be fitted with a thermostatic

valve which turns off the flow when the cylinder has

reached the desired temperature but the heat leak radiator

will have to be bigger to cope with the extra load when the

tank is isolated.

LINK UP SYSTEMS

For information on how to link solid fuel boilers to other

heating appliances see Information For Dual System Link

Up Methods (PM286). This can be obtained through Stovax.

SAFETY CONTROLS

1.4 This primarily consists of a high limit thermostat fitted to

the gravity flow pipe set at 80˚C, this thermostat should be

connected to the pump so that the pump is turned on if

the temperature exceeds 80˚C. This will prevent accidental

boiling in the gravity circuit.

Call (01392) 474011, email [email protected] or visit

www.stovax.com for details.

Always seek the advice of a competent person* before

linking another heating system to a solid fuel boiler.

1.5 It is also recommended to fit a low limit thermostat on the

central heating return set at 45˚C, this thermostat will turn

the pump off if the return temperature falls below 45˚C.

This will prevent corrosion and condensation within the

stove.

CONDENSATION

1.6 When filling the boiler with water for the first time, the cold

water entering the water jacket can cause condensation to

form on the surfaces of the appliance (inside and outside).

1.7 In certain conditions this condensation could result in a

considerable amount of water, in some cases enough to fill

the bottom of the appliance. This could be even worse if

the house has recently been re-decorated, wet plastered or

any other work has been undertaken which could result in

high humidity.

In the U.K.

1.8 Precautions must be taken to ensure that this build up of

condensate does not overflow from the appliance onto any

surrounding fabric of the room e.g. carpets.

* Registered on the Competent Persons Scheme (GB only)

see page 35 / INFO (Republic of Ireland).

COMMISSIONING

When the system has stabilised, write down the new

COMMISSIONING

difference between the flow and return temperatures and

any which differ from the index radiator by more than 1

degree will need further adjustment, some valves will have

been closed too much and others not enough, usually the

adjustments need to be only a fraction of a turn at a time.

Leave sufficient time for the system to stabilise after each

adjustment.

1.1 To commission:

— Replace the log retainer.

— Check the door alignment and catch operation, adjust if

required (see Maintenance & Servicing, Section 7,

Adjusting Door Hinges).

— Check the soundness of door seals, castings and joints.

— Check the operation of the air controls.

— Ensure the system has been filled with water and

includes a suitable inhibitor.

When the radiator temperatures are starting to become

consistent, but before final adjustments, the index radiator

needs to be considered, if the return temperature of this

radiator is not near 70 degrees then the pump will need

to be adjusted to either provide more (to increase the

temperature) or less flow to decrease the temperature.

Again, sufficient time will need to be left to allow the system

to stabilise after adjusting the pump speed.

1.2 Now carry out a final smoke draw test:

— First warming the flue with a blowlamp, or similar, for

about 10 minutes.

— Place a smoke pellet on the centre of the grate, with the

air controls open.

— Close the door. Smoke should now be drawn up the flue

and be seen to exit from the flue terminal.

— Complete test with all doors and windows closed in the

room where the appliance is fitted.

When the radiator flow and return temperatures are correct

the final adjustments can be made and the lock-shield

covers replaced.

— If there are any extractor fans in adjacent rooms, the test

must be repeated with the fans running on maximum

and interconnecting doors open.

Knowing how far to shut down a valve to get the desired

change in flow and return temperature, and knowing how

long to wait for the system to stabilise, takes a little time and

practice.

— Check the effect of ceiling fans during the test.

If the test fails, re-check the suitability of the flue system

and ventilation. An inadequate air supply to the room is

potentially dangerous.

1.3 If excessive spillage occurs:

— Allow the appliance to cool and re-check the flue system

and ventilation.

— Light the appliance and slowly increase the temperature

to operating levels.

— Ensure no combustion products enter the room.

— Open the main fire door when the appliance reaches

operating condition and carry out a spillage test with a

smoke match or pellet around the door opening.

— Run the system up to temperature.

1.4 Finally:

— Explain the safe operation of the appliance and the

use of the controls to the user and the importance of

only using suitable fuels.

All open flued appliances can be affected

by temporary atmospheric conditions which

may allow fumes to enter the house. Because

of this it is recommended that an electronic carbon

monoxide detector conforming to BSEN50291

be fitted and maintained.

BALANCING THE SYSTEM

It is essential to balance the central heating system in order

to achieve an even heating performance across all of the

radiators in the house. Balanced means each radiator having

a 10˚C difference in temperature between the flow and the

return, ideally 80˚C flow and 70˚C return.

— Explain the cleaning and routine maintenance

requirements.

Have the system running and adjust the appliance

thermostat so that the flow temperature measured near

the appliance is approximately 80˚C. Ensure that all valves

including lock-shield valves are in the fully open position

and the pump is at its estimated correct speed. If there are

thermostatic radiator valves, have these on maximum setting

and ensure that they do not activate.

— Explain the requirement to use a suitable fireguard

when children, elderly or infirm persons are near the

appliance.

—Record dealer/supplier and installer details in

Appliance Commissioning Checklist (page 3,

Instructions for Use).

Ensure that the radiators have been bled of air.

—Record serial number in Appliance Commissioning

Checklist (page 3, Instructions for Use). This number

is required when ordering spare parts and

making warranty claims.

Write down the return temperature of each radiator in turn

and its difference to the flow temperature at the appliance.

Make sure that the flow temperature remains constant.

The radiator with the greatest difference (the index radiator)

and any other radiator within 1 degree should be left with

the lock-shield fully open. The remainder of the lock-shield

valves should be closed to about 1/3 open. Leave the

system to stabilise, this could take some time.

— Give the copy of the Instructions to the customer.

MAINTENANCE and SERVICING

For a complete list of spare parts and accessories contact your Yeoman retailer or call 01392 474011

This is a list of the maintenance products you may need to use:

1. ANNUAL SERVICE

Stovax Code

Task

Product name

1.1 Before the start of the heating season strip, inspect and

clean the appliance as detailed:

Number

Stove glass cleaner

(spray on))

Glass cleaning

4103

—Allow appliance to cool.

Preventing build-

up of creosote in

flue

Protector (15 sachets)

Protector (1kg tub)

7002

7025

2020

2021

—Remove all internal parts: baffle, log guard and, for

multi-fuel versions, grate system and ashpan

(see Installation Instructions, Sections 2, 3, 4).

Fire Cement (500g tub)

Fire Cement (600g cartridge)

Sealing flue pipe

joints

—Sweep the appliance at this point if necessary.

—Vacuum clean any remaining ash and debris from the

inside of the appliance. Stovax offer a filter/

Riva Midnight Black

(150ml aerosol)

Re-painting

RVAC011

collection attachment for vacuum cleaners to protect

them from fire ash: Ash Clean (Stovax Part No. 2091).

Protecting your

hands

Heat resistant leather gloves YM-E00007

—Clean the internal surfaces of the appliance using a

wire brush and scraper as required. Vacuum and brush

the resulting debris from the appliance.

Ash Clean

Vacuum Cleaner Attachment

2091

5037

Thermic seal glue (50ml bottle)

14mm Black rope seal

(handy pack)

—Clean the grate parts with a wire brush, and check the

parts for any damage. Replace any damaged parts

using genuine Stovax replacements parts (see below for

details).

5000

Door sealing rope

Glass sealing rope

14mm Black rope seal

(25m reel)

4670H

—Re-fit cleaned internal parts.

15mm x 2mm x 2m

15mm x 2mm x 25m

15mm x 2mm x 2m

15mm x 2mm x 25m

4950

4954

4952

4957

—Remove glass from door, discard all old rope seals and fit

new (see Maintenance and Servicing, Section 5).

—Clean the door glass using Stovax Glass cleaner and a

Mid door sealing

rope

soft cloth. Do not use abrasive cleaners on glass.

Do not use acidic cleaners on printed glass.

These products, available from your local Yeoman retailer,

along with regular maintenance and use of correct fuels, will

keep the appliance in the best possible condition.

—Fit new door rope seal (see Maintenance and Servicing,

Section 6).

—Lightly oil the door catch mechanism and hinge pins.

1.3 For more information about the Yeoman products please

Avoid getting oil onto the door seals and glass.

visit our web site at www.yeoman-stoves.co.uk

—To refresh painted finishes use Stovax paint.

1.4 Burn at a low temperature for the first day of use after any

maintenance. This allows the seals, fixing glues and paint to

fully cure.

1.2 Use genuine Yeoman replacement parts to keep the

appliance in safe, efficient working order. This is a list of the

maintenance products that may need be required:

1.5 During this time the appliance may give off some

unpleasant odours. Keep the room well ventilated to avoid

a build-up of fumes.

1.6 Your Yeoman retailer can carry out service and

maintenance.

MAINTENANCE and SERVICING

2. REMOVAL OF THE LOG GUARD

Fixing Screws x 8

2.1 To remove the Log guard:

—Lift Log Guard clear of the supporting brackets.

—Rotate to clear the sides of the door opening.

Do not use appliance without the log guard in position.

Glass rope

seal

3. FITTING AND REMOVAL OF BAFFLE

4.1 See Installation Instructions, Section 3.

4.2 It is important to remove and clean the Baffle system to

ensure the flue ways are clear of soot and debris and to

ensure the safe and efficient operation of the stove. The

frequency of cleaning depends on the stove operating

conditions.

Door

Glass rope

seal

PR8738

4.3 The baffle system is designed to give safe and efficient

operation of the stove. Replace any damaged baffle

immediately.

Seal

Length (mm)

1220

Glass rope seal A

Glass rope seal B

4.4 Do not modify the baffle system.

460

5. FITTING A NEW DOOR GLASS

Black face

5.1 To maintain safe use of the appliance damaged door glass

must be replaced immediately. To do this:

—Open door and lift free of hinge blocks.

—Lay door face down on a soft flat surface to protect the

Glass rope

paintwork and glass.

seal

—Remove the glass clamp and screws x 8. The old

glass can then be lifted clear of the door. Note how the

sealing rope is placed around the glass.

PR8739

Dispose of the old glass safely.

Glass rope seal

PR8757

MAINTENANCE and SERVICING

—Clean, and re-paint, the rear of the door if required.

Seal

Length (mm)

2300

—Clean the screws with light oil.

Door rope seal C

Door rope seal D

Mid door rope seal E

410

—Coat with high temperature anti-seize grease to aid

future removal.

450

—Carefully wrap glass sealing rope (A) round the sides and

—Remove the old rope.

bottom edge of the glass.

—Scrape old glue from the locating groove.

—Fix glass sealing rope (B) to the matt black side of the

top face as shown in diagram above.

—Clean the locating groove with a clean dry cloth

removing all dust and debris.

—Place the glass into position in the door.

—Place the glass clamp into position.

—Apply Stovax Thermic Seal glue (Stovax Part No. 5037)

into the rope locating groove.

—Re-fix with the clean fixing screws.

—Press the new rope into the locating groove,

placing the joint in the middle of the lower edge of the

door.

—Tighten the screws evenly until the clamp holds the glass.

Do not over tighten the clamp as this could break the

glass.

—Refit the door.

—Close to apply pressure on the new rope.

5.2 Fit only Yeoman ceramic glass, which is suitable to use in

high temperature applications.

6.2 Leave the appliance closed for at least 12 hours before

lighting the stove.

5.3 Using the appliance with damaged door glass could allow

dangerous fumes to enter the room, or the appliance to

over-fire and cause damage.

6.3 Use at a low temperature for approximately one day.

Using the stove with a damaged door seal could allow

dangerous fumes to enter the room, or the appliance to

over-fire and cause damage.

6. FITTING A NEW DOOR SEAL

6.1 To maintain the safe use of your appliance you may need to

replace a damaged or worn door sealing rope. To do this:

—Open the door.

—Lift it free of the hinge blocks.

—Lie the door face down on a soft flat surface, to protect

the paintwork and glass.

Door rope seal C

Door rope seal D

Mid door

rope seal E

Joint

PR8758

MAINTENANCE and SERVICING

The hinge plate assembly is slotted so it can be moved up,

down and sideways by approximately 3mm to adjust the

position of the door in relation to the appliance.

7. ADJUSTING DOOR CATCH & HINGES

7.1 To maintain the safe use of your appliance, you may need

to adjust the door hinges to ensure the door closes safely

and correctly.

—Once the desired position has been achieved ensure

the screws are firmly tightened against the hinge plate

assembly to maintain the position.

7.2 To adjust the door catch:

—Open the door to gain access to the catch.

—Use a 13mm A/F spanner to loosen the half lock nuts

either side of the appliance body. This will allow the

dome catch to rotate in and out (see diagram below).

Stove body

Washer

Half lock nuts

Dome catch

Organisations authorised to certify competence in the

installation of domestic solid fuel appliances

(Competent Persons Scheme):

PR8740

—Once the desired setting has been achieved ensure the

aPHC - Association of Plumbing and Heating

Contractors (Certification) Ltd.

www.aphc.co.uk

lock nuts are tightened against the appliance body.

7.3 To adjust the door hinge plate assembly:

BESCA - Building Engineering Services Competence

Accreditation Ltd.

—Open door and lift free of hinge plate.

www.besca.org.uk

—Lay the door face down on a soft, flat surface, to protect

the paintwork and glass.

HETAS - Heating Equipment Testing and Approval

Scheme Ltd.

www.hetas.co.uk

—Use an M6 hexagon key to loosen the 4 x M6 screws.

NAPIT - National Association of Professional Inspectors

and Testers Ltd.

www.napit.org.uk

NICEIC - NICEIC Group Ltd.

www.niceic.org.uk

M6 screws

x 4

HETAS Approved Chimney Sweeps:

NACS - The National Association of Chimney Sweeps

www.chimneyworks.co.uk

APICS - The Association of Master Chimney Sweeps Ltd.

www.apics.org

PR8741

The Guild of Master Chimney Sweeps

guildofmasterchimneysweeps.co.uk

SPARE PARTS LIST

Ref.

No.

Product

Code

Drawing No.

(if different)

Description

CA7669

SM13

6” CAST FLUE

MEC7004

ME501805

ME501806

6” FLUE BLANKING PLATE

THERMOSTAT BLANKING PLATE

THERMOSTAT BLANKING BAR

PLINTH

LOG RETAINER

GRATE BAR - MOVING

GRATE BAR - FIXED

MULTI FUEL INFILL RIGHT HAND SIDE

BACK RIDDLING BAR

RIDDLING TOOL ASSEMBLY

THIN MULTI FUEL RIDDLING SOCKET

RIDDLING BAR

ASHPAN TOOL ASSEMBLY

ASHPAN ASSEMBLY

DOOR ASSEMBLY

CA7651

SM62

CA7111

CA7480

CA7479

CA7464

CA7500

ST8-CA7480

ST8-CA7479

ST8-CA7464

ST8-CA7500

MEC8792

RVN-CA7595 CA7595

ST8-CA7584

MEC8793

ST8-MEC8155 MEC8155

MEC8620

ST8-CA7463

SM19

CA7584

CA7463

MULTI FUEL INFILL LEFT HAND SIDE

M0670CBLT M6 X 70 COACHBOLT

MEC8747

AIRWASH ASSEMBLY

LATCH SCREW

BAFFLE ASSEMBLY

BOILER CARCASS

ME600521

ST8-MEC8802 MEC8802

MEC8625

SPARE PARTS LIST

Ref.

No.

Product

Code

Drawing No.

(if different)

Description

CA7615

MEC8619

FA500024

CAST DOOR

DOOR HANDLE ASSEMBLY

WAVE SPRING - YRW-0087S17

SPRING 6.1MM O/D X 0.61MM DIAMETER WIRE

X 22.2MM LONG

FA9508

FA500016

FA500025

CA7635

MEC8636

ME600392

ME600449

CA7649

TORSION SPRING

DOOR HANDLE CAM

HINGE PLATE ASSEMBLY

AIR CONTROL HANDLE

PRIMARY AIR SLIDER PLATE

AIR SLIDER

CA7648

GLASS CLAMP

INSULATION TAPE (BLACK) 5MM X 2MM X

450MM (4957) - AVAILABLE IN 2M & 25M

4952 / 4957

5000 / 4670

CE7818

CE7735

CE7783

ROPE SEAL (BLACK) Ø14MM X 2300MM (4670)

AVAILABLE IN 2M & 25M

ROPE SEAL (BLACK) Ø14MM X 410MM (4670)

AVAILABLE IN 2M & 25M

SELF ADHESIVE TAPE (BLACK)

15MM X 2MM X 1110MM (4954)

AVAILABLE IN 2M & 25M

4950 / 4954

CE7739

CE7803

SELF ADHESIVE TAPE (BLACK)

15MM X 2MM X 470MM (4954)

AVAILABLE IN 2M & 25M

ME600457

CE7705

FA9510

MEC8865

ME600410

AIRWASH SLIDER PLATE

DOOR GLASS

SHOULDER SCREW

CATCH SLIDER ASSEMBLY

DOOR CATCH BLOCK

ME7702

SERVICE RECORDS

2ND SERVICE

1ST SERVICE

Date of Service:...........................................................................

Next Service Due:.......................................................................