Stocksbro AB Bio-Sol P4 GB 2 User manual

Manual for the
Bio-Sol furnace
Manual for the
Bio-Sol furnace

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Manual for the Bio-Sol furnace.
Modell P4 GB 2,5
1. Preface
Thank you for placing your order with us to deliver a Bio-Sol furnace to you. We know that you will be pleased with
your choice and that with our system you will have a very economic, environmentally friendly and easily operated
system.
1.1. Important
It is very important that you, as a user of the Bio-Sol furnace, read through and follows what is written in this
manual.
Read also what has been stated in the respective manuals for the burner, metering screw and other optional
equipment.
Computer sign/CE labelling is on the furnace name-tag. It must not be removed from the furnace.
1.2. Sources of advice/information
Technical questions and spare parts: Please first contact your supplier or as an alternative the manufacturer.
Manufacturer: Stocksbro EnergiAB tel. [phone]
Stocksbro fax. [phone]
783 92 Stora Skedvi
1.3. Delivery
The furnace is delivered complete with: insulation, ash box, draught limiter, 3 thermometers, overheat protection,
thermostat, 4 turbolators and soot cleaning tools.
According to the customer’s wishes optional equipment can be delivered: burner, ash trap, electricity cartridge,
metering screw, calcium remover, solar heating package, etc.
1.4. Guarantee
The furnace is guaranteed for two years from the day it is installed under the condition that producer validated
optional equipment is used and that an authorized burner installer inspected the plant and started it up.
In areas with calcium rich water the calcium removerAqua 2000 or the like is to be installed in order for the
guarantee on the hot water loops to apply.
One copy of the guarantee document must be sent to Stocksbro EnergiAB in order for the guarantee to be valid.

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Kessetyp:
Bio-Sol GB 2,5
HANNOVER
SACHSEN-ANHALT
DIN EN 303 T5
DIN 4702 T1, T4
NDS 06
Stocksbroverken AB
Stocksbro
783 92 St. Skedvi
Schweden
2. Table of contents
Chapter Pages
Modell P4 GB 2,5 .....................................................................................................2
1. Preface..................................................................................................................2
2.Table of contents....................................................................................................3
3.Presentation...........................................................................................................4
4.General safety rules ..............................................................................................5
5.Operating controls/instruments ............................................................................5
6.The furnace’s function ...........................................................................................5
7.Installation ............................................................................................................7
8.Operation and maintenance................................................................................13
9.Specifications ......................................................................................................15
Drawing Boiler.......................................................................................................16
Electrical Drawing PellX 6 kW EP ........................................................................17
Electrical Drawing PellX 3 kW EP ........................................................................18
Drawing system Bio-Sol .........................................................................................19
Declaration.............................................................................................................20
GUARANTEE & INSTALLATION CERTIFICATE.................................................21
GUARANTEE & INSTALLATION CERTIFICATE.................................................23

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3. Presentation
3.1. The furnace
The Bio-Sol furnace has a unique solution where the pellet furnace and accumulator have been integrated into a
compact unit. The furnace can work with pellets, oil, solar and electrical energy.
The furnace has a cylindrical standing accumulator tank with a biomass fuel furnace built into the upper part. In the
tank there are loops to receive solar heating and to produce hot water. This makes the furnace compact, easily
assembled and energy efficient.
The furnace is made of 6 mm steel sheeting and the convection part comprises 8 horizontal pipes with a diameter of
67 mm.
In so far as the furnace is built into the accumulator tank it always maintains an even temperature. This means that
the furnace is always dry and that it is exposed to minimal strains because of temperature stress and corrosion.
3.2. Insulation
The furnace is equipped with very effective insulation made of all of 90 mm of CFC free moulded polyurethane
foam. The polyurethane foam is fire protected (class B2) and moulded together with a surface layer of aluminium
sheet. The cover has a surface layer of flame protected plastic (class V0)
The insulation comprises three parts. Two halves and a top.
3.3. The radiator circuit
The furnace has been provided with two feed outlets and two return connections.
The lower feed outlet in the centre of the furnace is intended for extraction of solar energy for the radiator circuit and
works paired with the upper outlet that gives full heating.
The return can be coupled to the middle outlet or the lower connection that is also the draw off and filling
connection. If solar heating is used the return will always be coupled to the middle connection.
3.4. Solar loop and warm water tap loops
Hot water is produced via two 12 m copper loops with a common diameter of 22 mm coupled in series. The first
loop is assembled in the tank’s lower part in parallel with the solar loop. This loop takes in cold water and retrieves
energy from the lower part of the tank and at the same time it preheats the hot water. In the upper loop the water later
gets its final heat. The coupling of the lower and the upper loops has been done in the tank where also a T connection
has been installed. These connections are brought to the top of the furnace.
One 12 m solar loop with a diameter of 18 mm brings in solar heat to the tank’s lower part. Through the arrangement
with the hot water loops and the low temperature that is created in the tank’s lower part the solar heating is always
used at a maximum.
3.5. Tools
The furnace is very easy to operate and comfortable to work with. All work can be carried out at a comfortable work
height when the hatch has been opened. The ash is collected in the easily handled ash box that accompanies the
furnace. Soot cleaning tools are delivered with the furnace.
3.6. Burner and other optional equipment
The furnace can be delivered with optional equipment according to the customer’s wishes. The furnace works best
with a burner that gives a forward flame.
Descriptions of these equipments are referred to the respective unit’s manual/instruction sheet.

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4. General safety rules
4.1. Safety rules in general
The furnace is designed for pellet burning combined with electrical and solar heating.
The maximum operating pressure is 2.5 bar not to be exceeded.
The normal operating temperature is 75 - 80ºC and the maximum temperature is 100ºC. The maximum temperature
must not be exceeded.
To prevent burn damage or fire the furnace is provided with breakers that stop the burner if the hatch is opened.
Always check that the burner is off before the hatch is opened.
Take into consideration also that the hatch and the burner as well as the furnace’s exhaust fume channel can be hot.
When the furnace is cleaned the burner must be off and the fire quenched before the hatch is opened.
Take into consideration that when the hatch is opened open flame is exposed. Flammable fluids or other easily
ignitable materials must not be in the vicinity then.
Use safety gloves when working with the interior parts of the furnace.
The metering screw is governed by the burner and can therefore start without warning.
The screw must be electrically detached before being handled manually, for example cleaning or service.
Regarding other operation of the burner and screw reference is made to the respective manual.
4.2. Safety rules for installation
Remember that the furnace has a high center of gravity before it is fulfilled with water prior to installation.
The furnace is to be assembled on a flat and sturdy support and be turned up to a vertical position. The support must
be dimensioned to carry at least 1000 kg.
5. Operating controls/instruments
5.1. Thermostat. Thermometer.
The furnace is provided with a thermostat for adjustment of the furnace’s operating temperature and the overheat
protection that activates at too high temperature. Three thermometers show the temperature in the tank at the top, in
the middle and at the bottom. Sensors for the furnace thermostat and overheat protection and electricity cartridge are
installed in so-called plungers in the furnace’s upper part. Sensors for the solar system are installed in plungers on the
tank’s lower part. Sensors for thermometers are fixed in pipes on the outside of the tank.
5.2. The burner
Operating and adjustment controls for the burner are described in the manual for the burner.
6. The furnace’s function
6.1. Burning
The burning takes place mainly in the pellet burner. The purpose of the furnace is to make use of the energy in the
hot gases and to separate out ash and dust.
The hot combustion gases flow into the furnace in the large deep lower volume where the ash box is.Ash and dust
fall down here. Then the gas turns up in the furnace’s rear part and comes into the four lower pipes. Then the gas
turns against the furnace metal sheet placed behind the hatch and goes via the four upper pipes out to the chimney.

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6.2. Heat radiator circuit
Normal arrangement:
The feed outlet is on the top of the furnace side (top feed). This should be coupled to the ventilating valve, safety
valve, shunt valve and circulation pump for further transport to the radiators in the house. The expansion vessel
connected to the lower connection point should be dimensioned for the system’s total water volume. The target value
for a closed vessel is about 10% of the total volume and for an open vessel 5 % can be sufficient.
The return pipe goes into the tank in the middle via a diffuser that lets the return water be allocated slowly to the
furnace without the temperature layers in the furnace being destroyed. (upper radiator return (solar)).
Low temperature outlet:
An additional feed outlet is in the middle of the furnace (middle feed). This outlet mainly makes it possible to use the
solar energy produced in the tank’s lower part and only when this is not sufficient shunt in hot water from the
furnace’s upper connection.
Winter arrangement:
If the solar system is not connected or during the darkest winter months the return piping can be reconfigured so that
the return water flows into the tank via the lower connection (return/filling/drawing off).This means that the entire
tank’s water volume is intermixed in the system and the burner gets a larger quantity of water to heat. This means that
the burner must work for longer intervals and the number of ignitions for the burner decreases. Observe that this
connection should not be used if the system is to receive solar energy.
Summer arrangement:
When the furnace been coupled to the solar system the solar panels load the tank with energy a large part of the year.
Asupply of peak energy is needed, however, more during autumn, winter and spring than during the summer. The
peak energy can be allocated in various ways. With burners that start and stop automatically pellet heat can be used
and for smaller needs it is appropriate to use electricity.
During the summer when the need of extra energy is small pellet heating is less effective and it is most often more
economical to use electricity as peak energy for the sun.
Pellet burners are not yet equipped with appliances that close off incoming air when they are not ignited. This means
that there is always a certain ventilation through the burner fan and the furnace to the chimney. If the system is to be
optimised during the summer and use electricity as extra energy the draught limiter can be disassembled or opened,
whereupon there will be free ventilation in the chimney. The temperature adjustment on the electricity cartridge can
also be lowered to about 50ºC without risking condensation in the furnace. Thus it is possible for the sun to take over
as large a part of the system as possible.
When it is time to start pellet heating again is it only necessary to reassemble or to close the draught limiter and to
start the burner. N.B.! Do not forget this before starting the burner!
6.3. Hot water heater.
Hot water is produced by two series 12 m cam loops made of copper D 22 mm. (throughput heater). The first loop is
placed in the bottom part of the furnace and the other one in the top part of the furnace. When warm water is drawn
cold tap water flows into the lower loop’s inlet part where preheating takes place to then be heated to full heat in the
upper loop.
Both loops are coupled together in the tank. One T connection is assembled between the lower and the upper loop
and a connection pipe is brought from this point to the top of the furnace. This makes it possible to get dilution water
to the mixing valve via the preloop. The solar efficiency increases then since more energy is got from the bottom of
the tank via the colder preloop and more scope for solar energy is created.
Observe that an additional mixing valve must be assembled that takes its dilution water directly from the cold water
pipe to ensure the correct temperature during daylight-saving time when the sun can heat up to high temperatures in
the entire tank.
Warm tap water should not be held at a higher temperature than 60oC at the taps (eliminate the risk of burns).
Calcium that is always in the water in greater or smaller quantities can stick in pipes and other hot water devices in
the house while heating. This problem can be solved simply with a so-called calcium remover assembled on the inlet
pipe for cold water.

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In our proposed connection how connections can assembled for elimination of calcium through circulation of
calcium elimination liquid through the loops is also given.
6.4. Solar heating.
The solar heating loop is assembled in the furnace’s cold lower part, in parallel with the lower warm water loop.
Through this arrangement effective possibilities are created to make use of the solar energy from the solar panels.
The colder the environment around the solar loop is the greater the amount of solar energy is that can be obtained
and the earlier or the later in the year the solar energy can be used.
6.5. Electric heating
An electricity cartridge is included as standard and is assembled over the middle of the furnace. It is provided with
an indicator light that shows when the electricity cartridge is on.
During the heating season the electricity cartridge functions as a safety measure and turns on to heat if the pellet
burner stops for some reason. It follows that the electricity cartridge should be adjusted for activation at a
temperature under the pellet burner’s switching on temperature. Check that the electricity cartridge does not turn on
when the burner is in operation – the indicator light should be off.
During the summer half-year the electricity cartridge can very well work along with the solar heating and add peak
energy if the solar heating is not sufficient.
If there is no solar heating connected the electricity cartridge can produce hot water if so desired during the summer
instead of the pellet burner.
7. Installation
7.1. Unpacking and transport to the furnace room.
The furnace is delivered with insulation and other parts assembled.Always check that there is no transport damage
before work with the furnace begins.
Before the furnace is moved to its place as a rule the insulation must be disassembled so that the furnace can be
handled.
• Begin by disassembling the steel band on the bottom part of the furnace.
• Unscrew the fitting plates around the smoke gas outlet. Note their locations.
• Loosen the screws in the fitting plate around the hatch and on the instrument panel’s right side. Let the
plates remain on the furnace.
• If the furnace is to be transported horizontally to the furnace room the hatch must be disassembled and the
instrument panel tied up. (see advice at the end of this manual).
• Disassemble the lock nut and steel tray on the feed pipe outlet on the top part of the furnace.
• Lift off the cover and pull the insulation halves apart.
The furnace is now naked except the hatch and instrument panel and it then has a diameter of 75 cm and can be
handled more easily and moved without risk of damage. However be careful with the copper pipe connectors that
stick out. (see also advice with pictures at the end of this manual).

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Tips for handling the furnace during installation
Use the wrapping that comes with the furnace. Saw, hammer and nails and one tension strap are the tools that are
needed.
Remove the furnace isolation. Leave the fittings and the instrument panel on
the front. Loosening the screws helps somewhat.
Dismantle the hatch and hitch the instrument panel so that it does not fall
forward when the furnace is laid down.
Also hitch up the opening breaker so that it is not damaged.
Build the „skid“. The stops and crosstie bolts should be placed
so that they pass free of the hatch hinges and so that they are
supported against the interior walls of the furnace body. Turn any
knotty parts in the boards against the lower part of the furnace
(strength) and preferably let the boards’ extension stick up over
the top of the furnace. However remember the ceiling height in
the furnace room.
Assemble the „skid“ in the furnace body and buckle it to a
transport trap passing through the furnace and out through the
chimney outlet.
Tie it down well.
With the furnace on the skid it does not roll around and it is easier to handle if it must be moved in a
horizontal position.
AT pipe mounted in one of the sleeves is a good place to put an iron bar through to make a comfortable
handhold.

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7.2. Erection and assembly of the insulation.
Put the furnace in place on a permanent and hard support and align it so that it stands vertically. Take into
consideration the load carrying capacity where the furnace stands. The completely assembled furnace with water
weighs about 1,000 kg.
The insulation must be assembled before the tubes and pipes are assembled.
• Check that the sheets of mineral wool and the soft mineral wool around the furnace’s front edge and around
the smoke outlet are undamaged and in place.
• Check that the pipes and sensors for the thermometers, overheat protection and thermostat are undamaged
and in place.
• Lift forward and push the two insulation halves. See that strut and outer shell are correctly in place when the
halves are pressed against each other.
• Fit an ordinary transport strap around the insulation with a clean protective sheet under the tension device.
(protection for the insulation).
• Tension the strap and check that the insulation halves move together.
• Assemble the steel band around the lower edge and screw down on the furnace front with the two sheet
metal screws. Also here use a tension strap to make the steel band press all round the insulation as tight as possible.
Drill new holes for fastening screws if necessary.
It is important that the steel band seals tight against the floor. If there is any unevenness it must be sealed with
additional sheet metal and mineral wool insulation.
• Assemble the fittings on the furnace’s backside around the smoke gas outlet.
• Check that the soft seal in the cover is intact and close the cover. (If there is little headroom the cover can be
put on top of the furnace before the furnace is erected.)
• The cover can be tightened down with the aid of a transport strap fitted between the chimney outlet over the
cover and to an appropriate fastening on the furnace’s front edge.
• Put the big washer over the feed pipe on the topside of the furnace and screw down with the big cover nut.
• Screw down the fitting plate and the instrument panel. Tighten the screws carefully so that the threads do
not release in the insulation material. (see picture collection at the end of this document).
• Assemble the back furnace hatch if it has been disassembled. N.B.! It is very important that the hatch
definitely seals tight against the furnace body. Adjustment can be done by screwing the hinges out or in when the
suspension bolts are disassembled.

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Assembly of insulation on Bio-Sol furnace
The furnace ready for assembly of the three part insulation
The two halves are pressed together by
a transport strap.
N.B.! the protector under the tightening
winch.
Be careful that the grooves in the
insulation halves fit into each other
well.
See that the mineral insulation
is placed correctly around the
electrical cartridge and at the
capillary tube input. Likewise
around the exhaust gas outlet
and the furnace front edge.
Check that temperature meters
are correctly seated in their
plungers.
Assemble the cover. Check that the fibre gasket is in place all around.
Press the cover down and lock it with the catch on the furnace top.
Assemble the steel strap on the lower part of the furnace.
Especially see to it that the steel band seals tightly against the floor.
Seal with mineral wool and supplement with additional sheet metal if
the floor is irregular and there is a gap between the floor and the
insulation. The distance between floor and isolation should not be more
than 5 mm.

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Stoppklötze
3 Bretter 2 Bretter
7.3. Assembly of connections
Pipe connections:
• Assemble the pipe connections for heating and hot water and any solar heating.
Connection to the copper pipes is done with clamp ring connections whereby the risk of heating the factory solder
joints is eliminated.
Alternatively solder joints can be made. It is then important that they are carried out according to these instructions
and with the specified solder. This is a condition for Stocksbro Energy’s guarantee obligation to apply.
The temperature intervals between different types of solder are small. There is therefore a risk that soldering done
during the production in the factory is damaged - risk of leakage.
In production Castolin 18 XFC was used with a bond temperature of 850ºC.
We recommend use of Castolin 11020 XFC with a bond temperature of 600ºC at the installation. Note that for use of
flux it is active for a maximum of 5 minutes.
Stocksbro Energi AB pressure tests all tanks during production and no tank is approved or delivered if it is not
faultless after this check.
• Before the hot water system is put in use after installation it must be rinsed clean properly.
Electricity connection:
• Two main breakers for electricity to the furnace (furnace and electricity cartridge) must be assembled in the
furnace room so that it is possible to interrupt the power without entering the furnace room.
• Connect the furnace’s 220 V to the main breaker for the furnace.
• Connect the electricity cartridge’s 3 phase to the main breaker for the electricity cartridge.
• When an electricity cartridge with more than 6 kilowatts has been assembled a power monitor must be
installed to eliminate direct reconnection after power interruptions.
• All electrical installations must be carried out by an authorized electrician.
7.4 Attachment to the chimney - assembly of the chimney.
The sleeve coupling (square) for the chimney to the furnace is delivered loose
along with an adapter for the draught limiter and the start piece for standard
chimneys. These parts are to be assembled and sealed properly with the
accompanying putty. The downward connection should not be used for smoke
pipes but it is intended for use as a cleaning opening. The smoke pipe straight
back can be uninsulated if desired.
If the connections that go up or to the sides are used the smoke pipe nearest the furnace should be insulated.
Here type certified products from NSP are used.
•Begin by deciding which connections are to be used for the chimney pipe and which connection is to be
used for the draught limiter.
•Assemble the adapter for the draught limiter.Apply glue to the flat abutment surface, press the adapter into
the hole on the chimney sleeve coupling and fold back the sheet metal tabs on the inside of the sleeve.
Make sure to press the adapter properly in place.
•Assemble the square chimney sleeve coupling in the furnace. Apply sealing putty on the abutment surfaces
before it is fitted into the furnace. Screw down hard with screws on the sides and the top side. Seal
thereafter with sealing putty all round so that the connection is fully sealed.
Options!
Adaptation to existing chimneys. There are more
parts in the assortment.

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•If the connection of the chimney pipe is to go backward the uninsulated start piece can be used and its
length adapted to the brickwork in the house’s chimney.
•If the chimney is to be connected on any of the upward alternatives, an insulated start module should be
assembled right or left. Continue construction with chimney modules up to the house’s chimney. (Option)
•The start module is connected to its hole in the chimney sleeve coupling and glued with the accompanying
sealing putty.
•Assemble the draught limiter on its sleeve coupling. Screw it down with sheet metal screws.
Set basis values. The appropriate underpressure should be between 15 and 20 Pa.
•Assemble the caps for the unused smoke pipe exits.
Take advice from the chimney sweep about the chimney’s condition and appropriateness before assembly. The
installation will be inspected by the chimney sweep in the municipality before it is put in use.
7.5. The burner.
The burner is to be installed in the furnace’s hatch. The adaptor on the hatch as well as the furnace’s electrical system
is designed to fit the burner ordered for the furnace.
It is very important that the burner connection to the hatch is entirely sealed. Use heat resistant sealing material or
sealants such as high temperature silicone between the burner and the hatch.
7.6. Metering apparatus.
Pellets are fed to the burner with the aid of the metering apparatus governed by the burner. Usually a pellet screw is
used for this.
The screw is hung over the burner and connected to it with special hosing.Arrange the screw so that it is possible to
open the hatch without bumping the screw and so that the hose can be lifted off the burner. A certain inclination of
the hose should be sought since the pellets then have a lower fall speed down into the burner and the pellets cannot
fall down into the burner if the hose melts off.
The suspension must be so stable that the screw cannot fall down during operation. The hose is cut to the correct
length and provided with a connection attachment in the bottom so that it can be connected to the burner without
tools.
The screw must not have too high an inclination angle to function satisfactorily. The maximum inclination angle is
45º.
7.7. Start up
After the furnace has been installed it is filled up with water via the drawing off/filling connection on the bottom of
the tank. Make sure to open for air on the top of the furnace to make the system air free and so that overpressure does
not arise in the tank (maximum 2.5 bar).
Check the seals in the connections to the furnace and the rest of the installation after filling.
The smoke pipe must be connected to the chimney and the draught limiter assembled in one of the smoke pipe
connections. Unused smoke outlets must be closed with the accompanying covers.
It is also important that there be openings in the furnace room that can let in air to the burner. (at least the same area
for inlet as the chimney’s area).
The burner must be attached to the furnace’s sensors (furnace thermostat and overheat protection). The screw’s cable
must be attached to the burner.
Switch the central switch for the furnace on.
Then follow the instructions for the burner for start up and ignition.
Before the plant is put in use the chimney sweep in the municipality must approve the installation.
Three screws attach the square
sleeve coupling to the furnace
Glue all round with the
accompanying glue. The sleeve coupling for the draught limiter is
glued and locked by folding the sheet metal on
the inside backward
The sheet metal cover is pushed in to the chimney sleeve
coupling.
The sleeve coupling is glued all round. Continue with
standard chimney components to the necessary length.

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8. Operation and maintenance
8.1. Adjustment
Furnace:
Adjustment of the furnace takes place using the turbolators that are delivered as standard. The furnace is very
efficient and the temperature of the smoke gases can therefore become so low that moisture from the smoke gases
condenses out in the chimney. The burner’s efficiency and furnace temperature also influence the smoke gas
temperature. Recommended furnace temperature when fired is 75 - 80ºC.
To prevent damage the furnace should be adjusted so that the smoke gas temperature in the chimney is above the dew
point.
Target value: the exhaust fume temperature in the outlet from the furnace should be 150 - 170ºC with closed draught
limiter. The safest measurement point for correct adjustment is in the chimney a meter down from the top of the
chimney. Here when fired the temperature should be 70 - 80ºC when the burner is running.
Therefore if the system is to be optimized it is necessary to set the smoke gas temperature as low as possible without
getting condensation in the chimney.
Always check that condensation does not occur in the chimney or the furnace when the operating temperature has
been reached.
With turbolators the resistance through the furnace increases, heat transfer in the convection package becomes more
effective and the efficiency is improved. If the resistance becomes too high there is the risk that the burner gets too
hot. Check the temperature on the case pipe by feeling it by hand. The temperature on the pipe above the point where
the pipe is slanted down in the burner must not get so high than it is not possible to hold a hand there. Consider also
that the resistance through the furnace increases when the furnace becomes sooty. Carelessness with cleaning and ash
removal from the furnace can entail a risk of batch fire in the burner.
The temperature is regulated by varying the length that the turbolator is permitted to move in the tube pipe. Full in =
maximum power.
Some different alternatives with approximate values are given below for the smoke gases to the chimney for high and
low power situations for a PellX burner and at about 25 kilowatt of power. The fume temperature decreases for lower
burner power.
Situation 2 is a good starting point at start up.
1.) 2.) 3.)
25 kW 25 kW 25 kW
150°C/110°C 170°C/140°C 190°C/150°C
If the temperature needs to be increased in the smoke gases the turbolators can be taken away entirely. Afurther help
with increasing the smoke gas temperature in the chimney is to insulate the smoke pipe between the furnace and the
chimney with mineral wool.A higher furnace temperature, higher burner power and a higher return temperature of
the water from the radiators also increases the smoke gas temperature and helps keep the furnace and chimney dry.
Draught limiter:
The draught limiter (standard equipment) is to be assembled on one of the smoke pipe connections. N.B.! The
draught limiter is to be assembled vertically and the limiter’s tilting bearing edge must lie horizontally for it to
function correctly.
The need of draught is set by changing the adjustment weights’ positions on the adjustment screws so that the
distance ”a” in mm corresponds to the correct number of Pa on the adjustment scale. Then the adjustment is locked

Utg. 19 Page 14
by screwing down the weights against each other. The target value for normal houses is 15 - 20 Pa.
Burner and metering apparatus:
See the respective manufacturer’s manual.
8.2. Running operation and maintenance
Operation and maintenance of the furnace is limited to cleaning the soot and removal of ashes and checking the
operating temperature and water levels and pressures in the furnace.
The draught limiter function should also be checked. The tilting bearing is to be cleaned when necessary.
The burner’s safety devices are to be checked regularly (see the manual for the burner).
The metering apparatus as well as the pellet store are also units that must be checked for adequate function.
The power in the furnace depends on the furnace being clean inside. Cleaning the soot and emptying the ash should
therefore take place regularly to achieve the best energy transfer. The intervals for this depend on the energy output.
Cleaning the soot and removal of the ash needs therefore to take place more often during the winter than during the
summer. The ash box has a large volume and depending on how the pellet store has been arranged the furnace can
normally run without monitoring for several weeks. However, the intervals must not be so long that the ash box
overflows and the ash prevents the burner from working freely. (risk of overheating the burner and interference with
operation).
Agood rule is to carry out these monitoring activities at certain times once a week on a certain weekday. Then there
is no risk that this is forgotten.
8.3. Removal of the ash and cleaning the soot
Stop the burner by turning off the power. Check that the burner has actually stopped before opening the hatch.
Use safety gloves made of leather.
Open the furnace hatch. Leave the furnace’s upper metal sheet assembled to begin with so that the smoke is sucked
from the burner into the furnace and smoke in the furnace room can be avoided. Pull out the ash box several
decimetres. Check the burner’s flame volume and scrape any hard pieces and ash in the burner pipe down to the
drawn-out ash box.
Then lift the furnace’s upper metal sheet out. Use the soot rake as a tool. Pull the turbolators out and shake off the
soot into the ash box. N.B.! Note how they are placed so that they can be reassembled in the same place. (adjustment
of the furnace)
Sweep down the ash on the front of the convection part in the ash box.
Push the ash box in. Use the round soot brush and pull it through all the pipes.
Reassemble the turbolators and the furnace’s upper metal sheet.
Then empty the ash box in appropriate containers. Use sheet metal vessels with covers. Keep or empty ash preferably
outdoors in a place safe from fire.
Put the ash box back and close the hatch.
Start the burner and check that it works correctly.
It can be necessary to clean the exhaust fume channel and the volume in the rear part of the furnace between the soot
cleanings. This is carried out by scraping the ash and soot down through the hatch/cover in the exhaust fume channel,
or alternatively sucking it out using an ash trap and a vacuum cleaner. With a sufficiently long tube from the ash trap
this can be carried out from the front of the furnace.
This cleaning is also carried out by the chimney sweep in connection with cleaning the soot in the chimney.
The ash trap or separator is an accessory for use along with usual vacuum cleaners. It is an accessory that makes the
work easier and that is recommended.
8.4. The burner and the metering apparatus
The operation and maintenance of the burner and metering apparatus takes place according to the manuals for these
units.

Utg. 19 Page 15
9. Specifications
9.1. Volumes, pressure and temperature
Tank volume 630 litres
Maximum operating pressure 1.5 bar
Normal working temperature 75 - 80 ºC
Maximum temperature 100 ºC
Maximum power 25 kW
9.2. Materials
Hot water loops 2, D 22 mm 12 m (in series)
Solar loop 1, D 18 mm 12 m
Steel plate, furnace 6 mm
Steel plate, tank 3 mm
Insulation, moulded polyurethane 90 mm
9.3. Dimensions and weights
Height (floor/top of the insulation): 1840 mm
Width/diameter exclusive of insulation: 750 mm
Width/diameter including insulation: 930 mm
Total depth of the furnace: 1230 mm
Height floor-centre of smoke pipe: 1460 mm
Smoke pipe dimension: 135 mm
Smoke pipe connections: 5
Weight empty exclusive of burner: 300 kg
9.4. Standard equipment
Turbolators 4
Temperature meters 3
Electricity cartridge with indicator light 6 kW 1
Draught limiter 1
Ash box 1
Soot cleaning tools: 2
9.5. Option
Pellet burner 20 kW
Electricity cartridge with indicator light, 1 9 kW
Afterburner
Metering screw or the like
Solar heating package 6 - 12 m2
Calcium remover
Ash trap

Utg. 19 Page 16
Drawing Boiler

Utg. 19 Page 17
Electrical Drawing PellX 6 kW EP

Utg. 19 Page 18
Electrical Drawing PellX 3 kW EP

RC
RC
Cirkulation Avkalkning
Alternative without sunenergy
or under the wintertime
Sensor Termal Cut-Out
Sensor pellet burner PellX
Return from radiators
Boiler System P4 GB
To radiators
Proposal to system.
Notice! The drawing is not complete
in all details.
Sensor Oil/gasburner/Iwabo burner
Cold water
Sensor Immersion heater
Sensor Termal Cut-Out
Immersion heater
Warm Water

Utg. 19 Page 20
Declaration