Hunter Stoves Herald 80B CE V.II Installation And Operating Instructions Manual

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Herald 80B 07102013 Page 1

H E R A L D 80B

CE V .II

M U L T I F U E L

C E N T R A L - H E A T I N G

S T O V E

Installation and Operating Instructions

Tested to AS/NZS 2918:2001

Test report 12/2569

WARNING: Improper installation, adjustment, alteration, service or maintenance can cause

injury or property damage. For assistance or additional information consult an authorized technician, or your Hunter Dealer. FOR YOUR SAFETY: Do not store or use gasoline or other flammable vapours and liquids in the vicinity off this appliance. Installation and service must be performed by authorized personnel.

PLEASE KEEP THESE INSTRUCTIONS FOR FURTHER REFERENCE. Manufactured in United Kingdom by: Distributed in New Zealand by: Hunter Stoves Limited Classic Cookers Aspen House 151 Bramleys Road Pynes Hill R D 1 Exeter Kaiapoi Devon, EX2 5AZ Ph. 03 3106534 E Mail: info@hunterstoves.co.nz Email: info@classiccookers.co.nz Web: www.Hunterstoves.co.uk Web: www.classiccookers.co.nz

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Contents Page No

Technical Specifications Page 3

Assembly Instructions Page 4

Installation Instructions Page 5-13

Operating Instructions Page 14-17

General Maintenance Page 18-19

Stove Spares Page 20-21

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Herald 80B CE V.II Central-Heating

Technical Specification

Stove Mass 218 kg

Wood

Total Efficiency 71.0% Nominal Heat Output 21.5 KW Output to Water 12.4 KW Output to Room 9.1 KW Mean CO Emission (at 13% O2) 0.38 % Mean Flue Gas Temperature 368 °C Flue Gas Mass Flow 19.3 g/s

Ancit

Total Efficiency 69.5 % Nominal Heat Output 17.0 KW Output to Water 12.5 KW Output to Room 4.5 KW Mean CO Emission (at 13% O2) 0.20 % Mean Flue Gas Temperature 314 °C Flue Gas Mass Flow 15.6 g/s

This appliance is not suitable for use in a shared flue

This appliance is suitable for continuous burning

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Assembly Instructions

PLEASE READ THESE INSTRUCTIONS CAREFULLY

It is important that your stove is correctly installed, as Hunter Stoves Limited cannot

accept responsibility for any fault arising through incorrect use or installation.

Important Warning

This stove must not be installed into a chimney that serves any other heating appliance.

There must not be an extractor fan fitted in the same room as the stove as this can cause the stove to

emit fumes into the room.

Flue Collar

Place the Flue Gasket on the top or rear outlet as required. Place the Flue Collar on top of the Gasket. Secure to the four locating tabs, inside the flue outlet, using the M6 nuts & studs supplied. Fit the 2 - M8 carriage bolts, washers & nuts into the Damper Holes, located on each side of the Flue Collar.

Blanking Plate

Fit the Flue Gasket and Blanking Plate on the remaining free outlet and secure it, using the 2 - M6 screws.

Baffle Removal/Fitting

Lift the Baffle and slide to the

right. When the left side of the

baffle clears the support, lower

the baffle into the Fire Box and

remove. Refit in reverse order

making sure that the back edge

of the baffle is located between

the two baffle supports.

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Installation Instructions

These instructions cover the basic principles to ensure satisfactory installation of the stove, although detail may need slight modification to suit particular local site conditions. In all cases the installation must comply with current Building Regulations, Local Authority Byelaws, national standards and other specifications or regulations as they affect the installation of the stove.

Health And Safety Precautions

Handling

Adequate facilities must be available for loading, unloading and site handling.

Fire Cement

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

Asbestos

This stove contains no asbestos. If there is a possibility of disturbing any asbestos in the course of installation then please seek specialist guidance and use appropriate protective equipment.

Metal Parts

When installing or servicing this stove, care should be taken to avoid the possibility of personal injury.

POSITIONING YOUR FREE-STANDING STOVE (WOODFIRE)

Freestanding stoves (wood fires) must not be installed in a fireplace or alcove, under a ceiling of less than 2.3m height. No wall or other fixed object may be closer to the front of the wood fire than one meter. When fitting a hot water boiler, the wood stove should be close (no more than 10m of Pipe) to the water cylinder.

Determine the installation position for your wood fire only after considering the necessary clearances and checking the practicability of installing the flue system.

Regard heat resistant walls with heat sensitive surface treatments (e.g. wallpaper or heat sensitive paints) as heat sensitive walls.

There must be a 25mm gap between the flues casing (see Installation Specification Sheets for size) and any combustible material. This space must be available without the removal of structural beams.

Flue installations other than strictly vertical ones are possible. See AS/NZS 2918 for Information on non-vertical flues and flues passing through walls and eaves.

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80B Dimensions (in millimetres)

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Installation

Installing the Flue

You MUST use a flue system, which complies with the current installation Standard AS/NZS 2918.

Full instructions are supplied with the flue kit, and these MUST be followed closely, including the minimum flue exit height from the top of the floor protector and the minimum exit height above the roofline or roof ridge as detailed in the instructions.

Always seal the flue to the flue socket of the firebox using firebox cement and/or fibreglass rope. Only flue systems tested for the appliance can be used. The flue system to be used is a spiroloc CCHS175

Other Flue Systems

Flues and flue heat shields other than those listed on the Installation Specification Sheets may be used, but if they have not been tested with these heaters, their installation Clearances will be those specified in AS/NZS 2918:2001 for untested flue installations. Unless otherwise specified, all heat sensitive wall material must be kept at least 600mm away from any flue, which is not fitted with a flue heat shield.

Flue Draught

A flue draught of minimum 1.2mm to a maximum 2.5mm water gauge is required for satisfactory appliance performance. The flue draught should be checked under fire at high output. If it exceeds the recommended maximum, a draught stabiliser must be fitted so that the rate of burning can be controlled and to prevent over firing. If the reading is less than the recommended minimum then the performance of the appliance will be compromised.

Air Supply

The room or space containing this appliance needs a permanent, unobstructed air opening of at least 9075 mm2. If a draught stabiliser is fitted, the air opening should be at least 15525 mm2. Due consideration should be given to air requirements for any other appliances in the same room or space.

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Material Clearance

Corner Orientation

Where the sides of the stove are at 45 degrees to the walls Rear corner of the stove to combustibles is 195mm

These clearances can be reduced by using shield as stated in ASNZ 2918:2001

There should be NO combustible material (i.e. furniture) placed within a distance of 1 meter from any

surface of the stove.

Note: combustible material refers to any material that will degrade when subjected to heat e.g.

plasterboard

Normal Orientation

MINIMUM DISTANCE TO COMBUSTIBLE MATERIAL

Behind the stove ( Top Plate)

250mm

At the side of the stove (top Plate)

170mm

195mm from corner of

top hot plate to

combustibles

195mm from corner

of top hot plate to

combustibles

300mm

90mm of concrete or

specified hearth

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Material Clearances

FLOOR PROTECTOR (Hearth) REQUIREMENTS —

Freestanding models

Unless your wood fire will be standing on an un-covered fireproof floor 90mm of concrete (containing no combustible material) extending at least 500mm from the appliance, it will be necessary to provide a floor protector (hearth). See below for construction details. (Fig 1)

Where the minimum size requirements bring the side of the floor protector nearly to a wall, it is advisable to extend the protector to meet the wall.

This is the only tested floor protection and must be used on timber floors Raw hearth can be covered in ceramic tiles or bricks.

Fig1

Note: walls are

combustible and all

dimensions stated

are minimum

170 mm from top hot plate to combustibles

90mm of concrete or

specified hearth

250mm from top

hot plate to

combustibles

300mm

Optional tile covering

50mm Non Combustible Material

20mm Vacuum formed Board

Timber base board or floor

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Hearth Size

The minimum size hearth for a Herald 80B is 950mm wide with the stove sitting central on the hearth. The minimum measurement from the front of the hearth to the back of the stove’s bottom plate is 780mm This measurement gives the minimum hearth requirement of 300mm Total length of the hearth when no wall shielding is used is 1030mm

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Earthquake Restraints

In New Zealand, Standards require that the wood fire and floor protector be secured to prevent shifting in the event of an earthquake.

On the hind most legs there are two tabs with 12mm diameter holes for seismic restraint

 On a concrete floor installation your Hunter stove is secured by 2 x 10mmx60mm concrete

anchors

 Hearth over timber floor installation your Hunter stove is secured by 2 x 10mm diameter coach

screws which are long enough to pass through the hearth and into the timber floor or 2 x 10mm diameter bolts which are long enough to pass through the floor and all hearth materials and bolt all together.

INSTALLATION OF BOILER MODELS

We strongly recommend that a knowledgeable, experienced and qualified plumbing and heating engineer is responsible for the design and installation of the heating and hot water system. Hunter Stoves Ltd cannot accept responsibility for any consequential loss, however caused, due to under or over specification of the appliance in any installation.

Do Not – Under any circumstances connect the stove to a sealed (pressurised)

heating system or unvented hot water cylinder.

Do Not – Link the stove into a heating or hot water system with an existing boiler without the use of

suitable equipment such as a neutralizer. When fitting this type of system the neutralizer manufacturer’s instructions must be followed.

Do – Fit an open cold feed and expansion cistern with separate cold feed and vent pipes. The

cold feed and vent pipes must be unvalved. The open vent pipe should have a diameter of 22mm and rise continuously from the boiler. It is common practice to form the vent pipe from an extension of the primary flow (see diagram).

Do – Connect the stove to a double feed, indirect hot water cylinder via 28mm copper flow

and return pipework, rising continuously from the boiler to the cylinder. The cylinder and heat leak radiator must be sited higher than the stove.

Semi pumped systems should be used on heating and hot water systems with gravity circulation to the hot water cylinder and one unvalved 2 KW radiator to act as a heat leak when the central heating is switched off.

All four tappings on wraparound boilers should be used for systems incorporating separate gravity and pumped heating loops. Each flow and return should be taken from diagonally opposite sides of the boiler.

If a common flow and return is used, these should also be taken from diagonally opposite sides of a wraparound boiler, and plugs inserted into the sockets not used.

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Room Thermostat

High Limit

Thermostat

90°C

Circulating Pump

Low Limit Thermostat (45°C)

Time Switch

Drain Cock

Room Thermostat

High Limit

Thermostat

90°C

Circulating Pump

Low Limit Thermostat (45°C)

Time Switch

Drain Cock

Injector Tee

Systems using a common flow and return to the boiler should incorporate an injector tee on the primary return connection from the central heating pump (see diagram).

A HIGH LIMIT thermostat should be fitted to the gravity flow pipe close to the boiler and set at 90°C. This should override any pump control, switching the pump on and dissipating any excess heat around the radiator circuit.

To prevent boiler corrosion due to condensation it is necessary to maintain the return water temperature above 45°C. This can be achieved by the use of a LOW LIMIT thermostat on the return pipe from the hot water cylinder, close to the boiler. The thermostat should make on temperature rise, preventing the circulating pump from operating until the gravity circuit is up to temperature.

A corrosion inhibitor must also be added to the system to ensure trouble free boiler performance and long system life.

Two Tapping System

Four Tapping System

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Commissioning and Handover

Upon completion of the installation, allow a suitable period of time for any fire cement and mortar to dry out.

A small fire may then be lit and checked to ensure the smoke and fumes are taken from the stove up the chimney and emitted safely to atmosphere. Do not run the stove at full output for at least 24 hours.

On completion of the installation and commissioning, ensure that the operating instructions and operating tools for the stove are left with the customer.

Advise the customer on the correct use of the appliance with the fuels likely to be used on the stove and warn them to use only the recommended fuels for the stove.

Advise the user on what to do should smoke or fumes be emitted from the stove.

The user should be warned to use a fireguard in the presence of children, aged and/or infirm persons.

Wiring Diagram for general guidance only

All electrical work must be carried out by a competent electrician in accordance with the rules in force and the instructions provided by the circulating pump and heating controls manufacturer

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Operating Instructions

This appliance is not suitable for use in a shared flue

This appliance should not be operated with the doors open

Aerosol Sprays

Do not use an aerosol spray on or near the stove when it is alight.

Air Controls

This stove has been designed to burn cleaner and more efficiently than a conventional wood burning stove. If used correctly this stove will burn far more efficiently than normal with the obvious notable feature of CLEAN GLASS.

However, for this product to work properly it must be used correctly. It is essential that the stove has an adequate air supply for combustion and ventilation.

The primary and secondary air inlets must be kept clear from obstruction and blockage.

Air Controls

Primary Air

The thermostat at the rear of the stove controls the primary air. The door sliders should be kept closed or the thermostat will not be able to control the fire.

Secondary Air

Secondary air is controlled via the slider above the

doors; it is this “Airwash” that keeps a clean and

uninterrupted view of the fire.

Damper Assembly (Optional)

When the damper is set in the open position the chimney draws at full draught, increasing the volume of airflow through the stove and flue. Close all other air controls before closing the damper fully. Shutting the damper restricts the flow, slowing the rate of burning. Close all other air controls and allow the fire to die down before closing the damper.

Secondary Air Control (Open Right)

Warning! This Appliance will be hot when in operation and due care should be taken. The riddling tool may be used to operate the door handle. Thick gloves could be used to operate the primary and secondary air controls.

Primary Air Control (Open Outwards)

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Multifuel Grate

Your Hunter Stove is fitted with a locomotive type grate. So that deashing can be carried out cleanly and easily, it is riddled from the outside of the stove with the doors closed. The grate is designed to burn both wood and solid fuels.

To burn solid mineral fuels place the operating tool over the riddling spigot and pull it down towards you. When left in that position, air is directed under and up through the slots in the firebed, giving the optimum conditions for burning solid fuels.

It is important that the riddling tool is used to remove the ash to ensure airflow through the firebed and allow the fire to burn over the entire area of the grate.

The ashpan should be emptied at least daily and ash should never be allowed to build up over a period of time as this will result in damage to the fire bars. The flat end of the riddling tool can be used to carry the ashpan.

To burn wood, push the operating tool up and away from you. When left in this position, air is restricted through the bed of the fire providing a solid base to build up a bed of ash. Surplus ash can be removed either by gentle riddling or with a shovel.

It might prove beneficial when burning more reactive fuels to leave the grate in a “neutral” position, thus directing some under fire air and some over fire air to the firebed.

Notes on solid mineral fuel burning

Solid mineral fuel should be placed in the stove so that there is no more than a 30° incline of the fuel bed from front to back. It should not be stacked above the rear edge of the baffle as this may result in damage to the stove.

With a full load of fuel, the stove will need to be refuelled approximately once every 4 hours.

Solid mineral fuel burns most efficiently with the secondary air control in the closed position. The primary air sliders (or thermostat, if fitted) can then be used to control the burn rate of the stove.

Always de-ash before refuelling and do not let the ash build up to the underside of the grate bars. Solid mineral fuel produces ash, which if allowed to build up, will stifle the airflow through the grate. This will eventually cause the fire to die.

With some solid mineral fuels a residue of burnt fuel or clinker will accumulate on the grate. Allow the fire to go out periodically to remove this.

Important! - We cannot stress firmly enough how important it is to empty the ashpan regularly. Air passing through the firebed cools the grate bars. Distortion or ‘burning out’ of the grate bars is nearly always caused by ash being allowed to build up to the underside of the grate.

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Notes on Wood burning

With a full load of wood, the stove will need to be refuelled approximately once every 1.5 hours.

Wood can be stacked higher in the stove than solid mineral fuel but care must be taken that logs do not touch or move the baffle. Wood burns most efficiently with the primary air sliders in the closed position and the secondary control open. Moving the secondary control will control the burn rate of the stove. If a primary air thermostat is fitted this should be used to control the burn rate and the secondary air should only be ‘cracked’ open to keep the glass clean.

Note - primary and secondary air is needed to light the stove, see section entitled ‘Lighting the Stove’

Wood burns best on a bed of ash and it is therefore only necessary to remove surplus ash from the stove occasionally. Burn only dry, well-seasoned wood, which should have been cut, split and stacked for at least 12 months, with free air movement around the sides of the stack to enable it to dry out. Burning wet or unseasoned wood will create tar deposits in the stove and chimney and will not produce a satisfactory heat output.

Lighting the Stove

We recommend that you have two or three small fires before you operate your stove at its maximum heat output. This is to allow the paint to cure steadily and to give a long service life of the paint finish. During this curing process you may notice an unpleasant smell. It is non-toxic, but for your comfort we would suggest that during this period you leave all doors and windows open.

First, load the fire with starting fuel, i.e. paper, dry sticks and/or firelighters in the mode chosen, either wood or solid mineral fuel.

Light the fire at the base leaving all air controls open. Allow the fuel to reach a steady glow and build the fire up gradually. Once you have a good fire established across the grate bed, further fuel can be added as required.

Extended burning

The stove can be banked up for extended burning. When burning solid fuel, empty the ashpan. Open air controls and let the fire burn brightly for a short period. Refuel and close primary and secondary air controls, the exact setting required will depend on the fuel used and the chimney draw so some practice may be necessary. To revive the fire, open the air controls until the fire is burning brightly de-ash if necessary and refuel. Set air controls as required.

Reduced Combustion

In order to reduce the combustion of the fire to a minimum, close the primary air sliders (or thermostat if fitted), then close the secondary air slider by moving the handle all the way to the left. If the controls are left in this position, the fire will receive the minimum of air and will die down. If you want to revive the fire it is recommended that the primary air control is open first, and then open the secondary air slider.

Warning! - The stove will remain hot for a considerable time after the fire has been extinguished.

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Safety notes for your guidance

FIRES CAN BE DANGEROUS – Always use a fireguard in the presence of children, the elderly or the infirm.

DO NOT OVERFIRE – it is possible to fire the stove beyond its design capacity, this could damage the stove, so watch for signs of overfiring – if any part of the stove starts to glow red, the fire is in an overfire situation and the controls should be adjusted accordingly. Never leave the stove unattended for long periods without first adjusting the controls to a safe setting – careful air supply control should be exercised at all times.

WARNING – FUME EMISSION

Properly installed and operated, this appliance will not emit fumes. Occasional fumes from de-ashing and refuelling may occur. Persistent fume emission must not be tolerated.

If fume emission does persist, then the following immediate action should be taken: -

1. Open doors and windows to ventilate room.

2. Let the fire out, or eject and safely dispose of fuel from the appliance.

3. Check for flue chimney blockage and clean if required.

4. Do not attempt to re-light the fire until the cause has been identified and corrected.

If necessary, seek professional advice. Important! – Do not fit an extractor fan in the same room as this appliance.

IN THE EVENT OF A CHIMNEY FIRE

 Raise the alarm to let others in the house know.  Call the Fire Brigade.  Reduce the appliance-burning rate by closing all air controls.  Move furniture and rugs away from the fireplace and remove any nearby ornaments.  Place a fireguard or spark guard in front of the stove.  Feel the chimney breast for signs of excessive heat.

If the wall is becoming hot, move the furniture away. Ensure that the Fire Brigade can gain access to your roof space in order to check this area for signs of fire spread.

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GENERAL MAINTENANCE

NO unauthorised modification of this appliance should be carried out.

This appliance requires regular maintenance by a competent engineer.

Baffle

This should be removed and cleaned at least once a month to prevent any build up of soot or fly ash that could lead to blocked flue ways and dangerous fume emission. If the baffle is removed the chimney/flue way can be swept through the appliance (unless damper is fitted).

Stove Body

The stove is finished with a heat resistant paint and this can be cleaned with a soft brush. Do not clean whilst the stove is hot; wait until it has cooled down. The finish can be renovated with Hunter stove paint.

Glass Panels

Clean the glass panels when cool with Hunter glass cleaner. Highly abrasive substances should be avoided as these can scratch the glass and make subsequent cleaning more difficult. Wet logs on heated glass, a badly aimed poker or heavy slamming of the doors could crack the glass panels. The glass will not fracture from heat.

Door Catch

Should the door catch require adjustment, to maintain the door seal, it is adjustable. By slackening the locking nut and turning the door handle one turn clockwise, you will achieve a tighter lock when the door is closed.

Rope

Check the rope around the door and glass. If rope is becoming detached, use Hunter Stoves rope glue to reattach it. If the rope is in a poor condition, a replacement rope kit may be ordered from the Hunter Stoves spares range.

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Chimney and Flue ways

It is important that the chimney, flue ways and any connecting flue pipe are swept regularly. This means at least once a year for smokeless fuels and at least twice a year for wood and other fuels. The baffle will need to be removed from its supports in order to sweep the chimney (see assembly instructions).

Only wire-centred sweeps’ brushes fitted with a guide wheel should be used.

If it is not possible to sweep all parts of the chimney through the appliance, ensure there is adequate access to cleaning doors.

If the stove 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 stove and the open fire.

Gaskets

All gasket used on this appliance are produced from a heat resistant material called Manniglas. Over time you may find that the gasket changes colour. This is due to a reduction in the pigment used in the manufacture of the product, and is no cause for concern.

Troubleshooting

Fire will not burn

Check that:

1. The air inlet is not obstructed in any way.

2. Chimneys and flue ways are clear.

3. A suitable fuel is being used.

4. There is an adequate air supply into the room.

5. An extractor fan is not fitted in the same room as the stove.

6. Flue draught is above minimum level (see installation instructions).

Fire blazing out of control

Check that:

1. The doors are tightly closed.

2. The air controls are all in the closed position.

3. A suitable fuel is being used.

4. The glass retaining clips are not loose.

5. The door rope seals are in good condition

6. Flue draught is below maximum level (see installation instructions).

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Glass Clip (HHR08/046)

Glass Clip Screw (FSJM05008SS)

STOVE SPARES

Only Hunter Stoves authorised spares should be used with this appliance

RIGHT HAND DOOR

LEFT HAND DOOR

Glass Clip (HHR08/046)

Glass Clip Screw (FSJM05008SS)

Door Glass

(HHR16/005)

Glass Gasket

(HHR16/006)

Right Hand Door

(HHR16/002)

Door Slider (HHR22/042)

Slider Knob (HHR08/045)

Left Hand Door

(HHR16/001)

Door Slider (HHR22/042)

Slider Knob (HHR08/045)

Door Knob (HCR06/059)

Washer (FWFM08025)

Catch Shaft (HHR08/111)

Circlip (FLRX07)

M8 Full Nut (FNFM08)

Catch (HMSS04/037)

Door Glass

(HHR16/005)

Glass Gasket

(HHR16/006)

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STOVE BODY ASSEMBLY – PART SECTION - MULTIFUEL

STOVE BODY ASSEMBLY – PART SECTION – WOOD