Radijator BIO Lux UNI 20 Instruction Manual

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Kotao na

BIOMASU

Heating boiler

BIOMASS

operated

SRB – ENG

OPŠTA UPOZORENJA

 Nakon uklonjenog pakovanja uveriti se u kompletnost isporuke, i u slučaju nedostataka,

obratiti se prodavcu koji je prodao kotao

 Kotao mora biti upotrebljen isključivo za namenu koju je predvideo proizvođač.

Isključuje se bilo kakva odgovornost od strane proizvođača za štetu uzrokovanu
osobama, životinjama ili stvarima, u slučaju grešaka pri montaži, regulaciji, održavanju
ili nepravilnom korišćenju.

 U slučaju curenje vode isključiti uređaj sa električnog napajanja, zatvoriti napajanje

vodom i obavestiti ovlašćeni servisi ili ovlašćenog montera.

 Ovo uputstvo je sastavni deo uređaja i mora se čuvati sa pažnjom i mora UVEK pratiti

uređaj i u slučaju promene vlasnika ili korisnika ili u slučaju priključenja na drugu
instalaciju. U slučaju oštećenja ili nestanka tražiti novi primerak od ovlašćenog prodavca.

INSTRUKCIJE / INSTRUCTION MANUAL

Montaža,korišćenje i održavanje kotla/ Assebly,use and maintenance of heating boiler

BIO

lux

UNI 20

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Contents:

1. Important warning;

1.1 Minimum distance from flammable materials;

2. Description of the boiler BIOlux UNI 20 ;

3. Assembly;

3.1 General warnings;

3.2 Measures and safety devices for boiler BIOlux UNI 20 ;

3.3 1. Boiler room;

2. Working and positioning of BIOlux UNI 20 ;

3.4 Instalation of boiler BIOlux UNI 20 onto chimney;

4. Cross-section of boiler BIOlux UNI 20 discription of boiler heatinh stove elements;

5. Schematic connection of automation;

6. Table of technical data;

7. Hydraulic scheme;

8. BIOlux UNI 20 operation and maintenance;

8.1 Control panel;

8.2 Short manual for automatic control;

8.3 Start of work of boiler BIOlux UNI 20 ;

8.4 Mistakes during ignition and start of boiler BIOlux UNI 20 ;

8.5 Maintenance of boiler BIOlux UNI 20 ;

8.6 Nameplate;

8.7 Declaration;

8.8 Sticker;

8.9 Manufactured;

Warranty.

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1. Important warnings

GENERAL WARNINGS

 After the removing of the package check for the completeness of the delivery, in the case

of defects, please contact the dealer who sold the boiler.

 The boiler must be used solely for the purpose envisaged by the manufacturer. Any

liability of the manufacturer is excluded for damages to persons, animals or things, in
case of errors during installation, regulation, maintenance or improper use.

 In case of leakage of water the device should be switched from the mains supply, close

the water supply and inform the authorized service and authorized installers.

 This manual is an integral part of the device and must be kept with care and must always

follow the device even in case of change of owner or user, or in case of connection to
another installation. In case of damage or failure look for a new copy of an authorized
dealer.

IMPORTANT WARNINGS

We emphasize that the use of the device working on bio-mass and solid fuel, having contact with
electricity and water, demands respect and security measures such as:

 The use of the boiler by the children and people with limited capabilities without

accompaniment is not allowed.

 It is forbidden to use boiler installations operating at temperatures higher then 110 ˚ C,

and pressure greater than 3 bar.

 It is not allowed to use easily inflammable fuels (alcohol, oil).
 It is forbidden to store easily flammable materials near the boiler and close the door for

firing. The ashes must be disposed off in closed and non-flammable containers.

 It is prohibited to incinerate waste materials which cause combustion flame or explosion

hazard ( eg. plastic bags, sawdust, coal dust, mud, etc.).

 It is prohibited to any person or technical intervention or cleaning the boiler before it is

switched off the main power supply switch, the setting on the device (0) "off".

 It is prohibited to change the safety elements.
 It is forbidden to close the vents in the room where the boiler is located. Air vents are

needed for proper combustion.

 No exposure to atmospheric turbulents. The boiler is not designed for outdoor use and

contains no anti-freeze system.

 It is forbidden to turn off the boiler when the outside temperature can drop below zero (to

prevent freezing).

 It is forbidden to put fingers or other objects through the openings in the outer parts of the

shell of the unit. Inside the shell there are electrical components and wires under voltage
and devices that are mechanically driven (engine gearbox and fan). Contact with them
may result in electric shock and mechanical injuries.

 In the case of intervention on any electrical device of boiler, switch off all the electrical

wiring and so it is removed from the mains socket.

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 Work with of boiler unit is forbidden for people with special needs (including children) to

physical and mental health, except under the supervision of a guardian, and the people
who are responsible for their behavior.

 Children must be supervised by a guardian as they do not play with the appliance boiler.
 If the damaged power protection, must be replaced in the factory and serviced by an

authorized dealer or qualified people to avoid the risk of electric shock.

1.1 Minimum distance from flammable materials

 Provide adequate distance from flammable materials, if necessary to ensure the protection

of the same.

 Minimum distance from flammable materials is required by law - please inquire of

professionals who deal with heating and Emission effluents.

 The minimum distance of the boiler and flue pipe gas from the low and averagely

combustible materials should be at
least 100mm.

 Minimum distance from flammable

materials is 200mm, and the same
goes for materials whose
flammability is not known.

Risk of fire!

 Storage of flammable materials and

liquids in the vicinity of the boiler is
prohibited.

 Be sure to warn users about the

required minimum distance of
combustible material from the boiler.

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Combustibility of Construction materials

A ...
Noncombu-stible

asbestos, stone, building
stone, ceramic wall tiles.
terracotta, plaster, screed
(without organic additives )

B...

Non
easily
flammable

Gypsum cardboard slab,
glass fiber slab of
ACUMINE, ISOMINE,
ROYALITE, LIGNOS,
VELOX, HERACLITE

C1..

Low combustible

beech and oak wood,
composite wood, file, slab
of HOBREX, Versalite,
umakart

C2 ...

Averagely
combustible

wood of pine, yew and
pine, composite materials

C3...
Easily combustible

Asphalt, paperboard, cellulose
materials, chipboard, cork,
polyurethane, polystyrene,
polypropylene,
polyethylene fiber floor

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2.Description of boiler BIOlux UNI 20

BIOlux UNI 20 is designed for burning wood pellets. Wood pellets are produced from 100 %

cellulose. Wood residues under high pressure are compressed into pellets of 6 mm in diameter
and in length of 2- 3cm. Pellets should be stored correctly in a dry place to ensure efficient
combustion. Boilers BIOlux UNI 20 use pellet of 6mm diameter, of 5 -30mm length and
humidity up to 10 % manufactured in accordance with EN 14962-2. If the pellet is not specified
by the standard or during storage or transport there is the deterioration of its quality, company

“RADIJATOR INŽENJERING” as the manufacturer can not take the responsibility for the poor

performance. In such situations, errors occur in the ignition, pellet accumulation and falling out
from the combustion space, insufficient power etc.

BIOlux UNI 20 is installed in the boiler room or other rooms, but it has an advantage in the

situations where more compacted dimensions are needed.

It is mounted on the classical minimum diameter chimney of 120 mm. The chimney must meet
all other standards as used in traditional boilers, which is more discussed in the Installation
Chapter.

Nominal power of BIOlux UNI 20 according to EN303 -5 is 19,7 kW.

Within the boiler the corresponding circulation pump and expansion vessel of 10 liters are
installed. The boiler is supplied with a mechanical safety and relief valves.

Burning of pellets is performed on the principle of filling the combustion chamber. The whole
process is carried out by automation system that allows selection of one of three levels of power.
It is possible to connect the room thermostat and program the periods of start of work and
standby cycles for 7 days.

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Figure 1. Cross-section of the body of the boiler

CONSTRUCTION

Boiler heat exchanger is the tube two draft heat exchanger and it is constructed in the materials
which, according to thickness and quality of the materials, conform to the Standard EN 303 - 5.
Only by the dimensions factory BIOlux UNI 20 unit is adjusted to manipulation in small spaces.

Silo has the capacity of 50 kg of pellet. Combustion chamber is made of fireproof material. Cross
section of the boiler and the aforementioned parts can be seen in figure 1.

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3. Assembly

3.1 General warnings

The boiler must be set correctly for proper operation!

Maximum operating pressure of the boiler is 3 bar, 1 bar the minimum and

maximum operating temperature of the boiler is 110 C.

Boiler with one fan, automation, electric ignition and pump and all of these devices
use 230V power, so that incorrect installation and careless handling may endanger human
life electrocution.

Solid fuel boiler and forced draft should be installed according to valid standards
and legal regulations. Any mechanical or electrical change in the design or installation shall
be deemed a violation of guarantee conditions and will lead to its distortion.

In an assembly the boiler should be properly protected against the excessive
overpressure and overheating.

When installing the hydraulic installation of the boiler must be provided in a
prescribed way of overdraft maximum operating temperature and pressure.

For the proper installation the plumber/installer is responsible.

The manufacturer (Radijator Inženjering d.o.o) does not take any responsibility
coming from the incorrect installation of the boiler.

When any intervention on the electrical devices BIOlux UNI 20, the whole system
off the main power supply.

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3.2 Measures and safety devices for BIOlux UNI 20 Boiler Heating Stove

For safe operation of BIOlux UNI 20 Boiler Heating Stove it is necessary to assemble and
maintain the following elements in working condition:

 Pressure safety valve, air vent and gauge vent;
 Electro mechanical pressure switch for water;
 Pressure switch for flue gases;
 Thermostats in the automation of the boiler.

Pressure safety valve (figure 2), air vent (figure 3) and gauge vent (figure 4):

Figure 2. Pressure safety valve Figure 3. Air vent Figure 4. Gauge vent

 Pressure safety valve factory is maunted and must be of nominal diameter of 1/2 inch

calibrated to a maximum of 3 bars.
This security element which belongs to the group of pressure limiters must be of such
construction to withstand short-term overdrafts and temperatures and pressure as well as
the content in the liquid glycol for heating.
This safety element must be subjected to periodic re-calibration , of which the investor,
i.e. the user of the boiler must have valid documentation.

 Recommend and install a pressure gauge (Figure 4) the hydraulic installation.
 Safety valve must be mounted on the highest point directly to the boiler and the boiler

without any pipeline or any other elements in between. For this purpose there is a
specially designed connector (see picture). Any reduction in the diameter of the
connector during servicing and assembly of a new safety valve is strictly forbidden.

 Drain or exhaust of the safety valves must be of pipes with a diameter at least equal to the

nominal diameter of the outlet part of the valve. You are allowed to use up its production
of an arc of radius r> 3d.

 The safety valve must have a nameplate and the following information on it:

- Name of manufacture;

- Designation of type of safety valve / year of testing;

- Nominal flow rate;

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- Data for which thermal effect the safety valve is set;

- The highest opening pressure 3 bars.

 It is obligatory to check the correct functioning at regular intervals as well as the re-

calibration by certified companies. These responsibilities are carried out in accordance
with the law of every country in which the boiler is assembled. Always keep the written
documentation of the last calibration data for the safety valve.

 On the return line assemble at least another pressure safety valve.
 Along with the pressure safety valve, the same security group includes vent valve. On

this unit there are two such valves. One is on the highest point of the boiler and the other
at the highest point of the collector at the point of branching pipe hot water and expansion
vessel.

Electro mechanical pressure switch for water (figure 5):

Figure 5. Electro mechanical pressure switch for water

 This security element continuously measures the pressure in the boiler heat exchanger of

the pellet Boiler and that information is transmitted to automation system. If the pressure
is above or below the value of 0.5 to 2.7 bar then it leads to shutting down of the whole
unit. Limit values of the minimum and maximum pressure values are determined by the
operation program of automation.

Pressure switch for flue gases (figure 6):

Figure 6. Pressure switch for flue gases

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 The purpose of this safety section is to continuously measure the underpressure of the

flue gases in the flue channel area where it is connected, and to transmit this information
to to automation system. If the value of the underpressure is above or below the value
that is predefined in automation, there is the termination in operation of the entire unit on
the automation display there is a warning that a mistake occurred in the operation.

WARNING: The disturbances in under pressure of flue gases can occur due to

clogging of the chimney, a large dirt of flue channels in the pellet Boiler, poor sealing of doors or
glass-ceramic, the lids of the openings for flue channels etc.

 These conditions may lead to poor drainage of the combustion products, especially of

carbon monoxide, which can, in extreme cases, lead to serious health problems and even
choking of users.

Thermostats in the automation of the boiler (figure 7):

Figure 7. Thermostats in the automation of the boiler

Within the automation itself that leads the combustion process and influences the work of two
cycles of heating, there are two termostatats. Both are of similar construction as the thermostat
shown in figure 7 and they have safety functions as limiters of the temperature of water in the
boiler. Because of the safety role in the functioning of the boiler, both thermostats have the
independent probes for measuring of water temperature.

The first thermostat is the so-called „working thermostat” work and it serves to limit the

temperature to a level the user wants. Another thermostat is the „safety thermostat” because it

stops the opration of the fan which favors the flame, and adds a new energy. Safety temperature
is limited to 95 degrees Celsius.

It is very important to connect the pump for heating through automation for safety
reasons. When the temperature of water in the boiler reaches the critical value of 95
degrees the fan stops working, but the pump is necessarily switched on to exchange the heat
of water through radiators.

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The tap for filling and empting should be installed at the lowest point of the system.
Since there is no connection for filling and emptying on the stove itself, the tap should be
connected to the lowest point of the return line. The installation should be filled slowly so as
to remove air from the system. After the filling is complete, check for leaks on the central
heating system.

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3.3. Boiler room

Boiler room must be secured against freezing.

The support surface of the boiler in the boiler room must be of non-combustible material.
Recommended distance of all four sides of the boiler in relation to the boiler walls or other solid
body (water heater, etc.) are shown in Figure 8.1. These values allow a safe distance access
when firing, sufficient space for cleaning and easy access to fan and valve for filling and
emptying. Boiler at its left hand side should be away from the wall 300 mm. The space on the
right side of the boiler, which is recommended to be at least 800mm. The space on the back is
important for installation on hydraulic system, for cleaning, etc. Boiler room must have

sufficient ventilation holes for fresh air as well as for the outlet of the exhaust air!

Figure 8.1 Positioning of boiler in the Boiler room

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Total space of this openings is minimum 150cm² fro the boilers of the power of 50kW and for
the power over 50kW the space must be larger for another 2cm² per 1kW.

A=150cm²+

)50(

2

2

kWQ

kW

cm

n







n

Q

= possible power of over 50kW.

The lack of sufficient ventilation in the boiler room can cause more problems in the work of
boiler. Main problem is the inability to achieve high output water temperature i.e. the lack of
maximum power which leads to condensation in the boiler.

 Take into account the required minimum space required for access and security elements

to carry out cleaning operations.

 Determine whether the degree of electrical protection is in accordance with the

characteristics of the room where the boiler will be located.

 No exposure to atmospheric influences. The boiler itself is not anticipated for outdoor use

and contains no anti-freeze system.

 It is forbidden to close the vents in the boiler room in which the openings are necessary

for proper combustion.

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3.3.2 Working space and positioning of BIOlux UNI 20

When determining where to place boiler pay attention to the following details:

 Boiler must be as close to the chimney as possible, also supply of fresh air for

combustion should be close.

 The unit must never be installed in a bedroom or a room that is impossible to separate

from bedroom by the door

 The room in which BIOlux UNI 20 is installed another heating unit can not be used,

such as a stove ora fireplace, solid fuel and pelet heating units. Necessary circulation of
air through one of these devices is likely to be oppressed by the air supply to the other
unit.

 The room in which the boiler is positioned must be able to let the ventilation and

connectivity with fresh air or with a room that is connected to external fresh air. This
connection is made with non-combustible steel pipes.

 For the operation of the unit the power supply of 230 V and 50 Hz is needed. Place the

boiler as close to the connection socket as possible and on this occasion avoid extension
cords.

 In case of setting the boiler on the combustible surfaces (floors, laminates, rugs, carpets,

etc.). It is necessary to insulate the unit from such substrates with a plate of
uncombustible materials (steel, ceramics, insulation materials, ceramic fiber, etc.). Such
plates should be sized as to be larger from the base of the boiler (see Figure 8.2).

 Boiler must be at a safe distance from flammable materials such as wood and textile,

pieces of furniture, curtains, plastic parts etc. The distance must be at least one meter
from such materials.

 Distance of the boiler from the solid immovable objects (walls, columns, etc.)

(Figure 8.2) laterally must be at least 40 cm (Figure 8.2 measures B), at the back of
40 cm (Figure 8.2 measures C) and at the front of 100 cm (Fig. 8.2 A measures). This
gap distances are necessary because of approaching to hole for cleaning as well as
for access during service interventions.

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Figure 8.2 Display of Distance of Pellet Boiler from fixed objects

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3.4 Assembly of BIOlux UNI 20 onto Chimney

When installing the chimney we distinguish two situations:

 Situation 1: Boiler is connected onto a standard chimney (masonry or metal) that has a

foundation and a full cross-section of the base plate to the top.

 Situation 2: Boiler is connected onto prefabricated metal chimney attached to the facade.

Situation 1:

 The chimney uses ceramic or metal pipes of circular cross-section of 130mm diameter.

Flue pipe must be insulated.

 If the chimney, already exists and is of square cross-section, then the minimum

dimension of the intersection is 130x130mm.

 It is not allowed to use a chimney for connecting multiple heating units.
 It is not allowed to use the air vents like a chimney.
 Top of the chimney to be protected with the chimney cap due for the impact of rain and

winds. Distance of chimney to cap is 200mm.

 Chimney should come out above the roof according to the recommendations of the

showed in image. (Figure 9.4)
If some other objects are near the chimney, take this into account, and then increase the
height of chimney.

 The chimney must have a connection to extract condensation and an inspection door.

The door should always be sealed well during the operation.

Situation 2:

 In this situation flue pipe must go at least 1.5 meters vertically upwards in the very room

where the boiler is placed, and then penetrate through the wall and be connected onto the
chimney.

 Flue pipe must have a T piece for condensation at the outlet from the boiler and the

possibility of dismantling for cleaning.

WARNING: Failure to follow the rules during the execution of flue and chimney can lead
to malfunction of the boiler and endangering to human health and even to endangering of
their lives. The biggest danger is from the toxic gases which are the products combustion
process. In these situations where no flue, chimney and combustion air have not been
constructed the way it was proposed in the instructions, Co. Radijator Engineering can not
take responsibility for unintended consequences.

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Figure 9.1 Installation of flue gas channels

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Figure 9.2 Installation of flue gas channels and fresh air inlet for combustion

The BIOlux UNI 20 boiler operates under forced draft conditions with one fan, but the rules

for the selection of a chimney should be respected as if it was intended for the boiler with a mild
sub-pressure in the firebox working on another fuel type, such as fuel oil. The chimney cross
section should be 130mm, otherwise it may cause problems in the process of operation.

It is recommended for the chimney diameter to be larger than the diameter of a flue outlet.

Arches should be avoided if possible; if not, the maximum number of arches should be 2. It is
desirable to isolate the flue gas channel running from a boiler to a chimney, particularly if there
are arches and long sections.

The flue gas probe was factory installed in the box of the exhaust gas fan. Before starting, it is
necessary to check whether all elements are in place after transport, because the boiler will not
operate without the probe being properly installed. The required chimney draft is 12Pa.

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Figure 9.3 Place where is set flue gas probe

The chimney itself should be made of ceramic pipes, and around them there should be the
insulation of 3- 5cm thickness and the outer layer is of the bricks or special elements. If the
chimney is not from ceramic pipes but of bricks, the light opening area of such chimney shall be
30 % higher than the surface of this ceramic pipes chimeny.

The chimney must have a door for cleaning and it must be well sealed. Chimney outlet on the
roof must be according to certain regulations. There are two cases: if the angle of the roof is less
than 12° and if the roof angle is bigger than 12 °. For angle less than 12 ° the height of the
chimney above the roof is 1 m and for the larger than 12 ° , then look at the sketch.

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Figure 9.4

If the chimney is not of proper height, cross section, or if it is not enough
clean as possible, then the complications in the work of boiler are possible. First,
of all it is not possible to achieve the high teperature regime of work, i.e. there is
not the maximum operation power, and the consequence of that is the
occyrrence of condensation which affects the life of the boiler.

Weak/poor chimney is the main reason when during the ignition of the
boiler or during the operation there is the appearance of smoke on the upper or
lower door, especially at higher fan speeds.

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Figure 9.4

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4. Cross-section of BIOlux UNI 20 boiler with a description of the boiler

elements

Figure 10. Cross-section of boiler with discription of the boiler elements

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elements

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Description (figure 10):

1. Body of boiler (Exchanger);

2. Inside door (for the cleaning of a combustion cup and the lower part of a boiler
exchanger);

3. Exchanger cover (for the cleaning of the upper part of a boiler's pipe exchanger);

4. Cup of combustion chamber;

5. Electric heater;

6. Pipe for a fresh air intake for the combustion;

7. Feeding system;

8. Motor for feeding system;

9. Circulation pump;

10. Expansion vessel of 10l;

11. Silo;

12. Flexible connection;

13. Automation;

14. Safety valve;

15. Air-vent valve;

16. Flue outlet;

17. Cover of a gas flue box;

18. Boiler shell.

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5. Schematic connection of automation

Figure 11. Schematic connection of automation

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All lines that are displayed in the intermittent form in the diagram of external connections are the
conductors which should be installed by the technician when connecting the external devices
onto the automation system of the boiler. All the connections of the additional devices are
performed by the technician through connectors located at the rear of the boiler. One three-pole
connector serves for the connection of the room thermostat as shown on the label the connector
itself.

Seven-pole connector is connected to the power cable, while through another three-pole
connector (next to seven-pole ) the circulation pump is connected.

For the room thermostats it is important to be battery-powered on, i.e. they
should not have any supply of the voltage of 220 V. On the thermostat for the
connection NC is used (normally closed contact).

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6. Table of technical data

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 D1- connection for hot water from boiler,

 D2- connection for cold water from boiler,

 D3- connection for filling and emptying boiler,

 D4- connection for safety group,

 D5- air duct.

NOTE: Pump, expansion vessel, valve for filling and emptying boiler (D3) and
safety valve (D4) are on boiler.

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Type of boiler

BIOlux UNI 20

CE designation

CE

Class of Boiler according to EN 303-5:2012

5

Working Pressure

bar

3

Test Pressure

bar

4,5

Volume of water in the boiler

L

40

Weight

kg

267

Minimal cross section of chimney

mm

130

Necessary chimney draft

mbar/Pa

0,12/12

Boiler temperature (min / max)

°C

60-90

Minimum return temperature

°C

60

Efficiency degree at nominal/minimal thermal power

%

90,24/91,22

Nominal Power

kW

19,7

Minimum / Maximum Power of Boiler

kW

5,90/19,7

Carbon monoxide (CO) at a nominal heat power (10%O2)

mg/m3

89,19

Carbon monoxide (CO) at a minimalheat power (10%O2)

mg/m3

158,51

Dust at nominal/minimal heat power (10%O2)

mg/Nm3

17,60/19,58

Dimensions

A

628

B

738

B1

799

C

986

ØD

80

E

100

F

356

G

134

H

1264

I

241

Connections for hot water boiler from boiler

D1

1"

Connections for cold water from boiler

D2

1"

Connections for filling and emptying boiler

D3

1/2"

Connections for the safety valve

D4

1/2"

Air duct

D5

6/4"

*we reserve the right to change

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7. Hydraulic scheme

Figure 12. Hydraulic scheme

Discription (figure 12):

1. Boiler BIOlux UNI 20;

2. Pump;

3. Expansion vessel 10L;

4. Exchanger ;

5. Valve for filling and emptying boiler;

NOTE: In assembly of boiler includes pump and ekpansion vessel 10l.

In an assembly the boiler should be properly protected against the

excessive overpressure and overheating.

For the proper installation the plumber/installer is responsible.

The manufacturer (Radijator Inzenjering) does not take any responsibility

coming from the incorrect installation of the boiler.

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Figure 12. Hydraulic scheme

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8. Start of boiler operation and cleaning

First Commissioning of the boiler is performed by a Technician

who has a Certificate issued by the “Radiator engineering” Co.

Training of boiler users is mandatory.

In this way, the person is authorized to notify the customer service in
the factory, time when the boiler started its operation in the condition
of the boiler at its first firing, while a copy of the commissioning of the
boiler in operation is retained. Guarantee and instruction manual are
given to the customer. One copy of Guarantee is sent to the
manufacturer.
If the guarantee is not filled in, it is not valid.

Only boilers that are operated only by authorized persons subject to
technical conditions of complete guarantee of two years.
The following text is intended for the user of the boiler, as a kind of
reminder, that if you turn off the boiler (eg for cleaning) will be able to
independently run the boiler.

The parameters related to the operation of the boiler and which
are available to the user on the display. Other parameters that are
called hidden menu should not be changed without the approval of the
technical person who has put the boiler into operation or the factory.

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8.1 Control panel

Figure 13. Figure and diagram of Automation display

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Buttons:

Led:

NOTE: Diodes L4, L5, L6, L7, L10 and L12 are not in operation in boiler

BIOlux UNI 20.

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8.2 Short manual for automatic control.

Figure 14. View of LCD screen on display

 Reading of the current situation.

Procedure:

Press the key P6 , after that on the display the Information are shown
(Figure 15).

Figure 15. View of status display on pellet stove

NOTE:In the boiler BIOlux UNI 20 the information marked with an asterisk(*)

are not shown.

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 Enter the MENU of automation and an explanation of the function.

Procedure:

Press the key P3 , after that on the display there is the falling list (Figure 16).

Figure 16. View and explanation of the MENU of automation system

 Change the adjusted power of boiler BIOlux UNI 20.

Procedure:

Press the key P3 , after that the falling list is shown on the screen, where the first

option is marked Combustion Power. Again push the key P3 , after that there is

the view on display (Figure 17). With keys P4 or P6 you assign the

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adjusted power and finally confirm again with key P3 . Go back to the basic view

of the display (Figure 16), by pressing the key P1 .

Figure 17. View and explanation of display in option Combustion Power

NOTE: In the boiler BIOlux UNI 20 maximum adjusted power is 3.

(Manufacturer’s recommendation is to use AUTO mode of Power)

 Change the assigned temperature of water in boiler BIOlux UNI 20

Procedure:

Press the key P3 , after that the falling list is shown on the display , where the

first option is automatically marked Combustion Power. With Keys P4 or P6

, you come to the option Boiler Thermostat. Confirm again with key

P3 (appears to view a similar view like on figure 17), then with keys P4 or P6

assign the temperature and at the end confirm again with key P3 .

Go back to the basic view on the display (Figure 14), by pressing the key P1 .

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 Change the precise time and date.

Procedure:

Press the key P3 , after that on the display there is the falling list, where the first
option is automatically marked Combustion Power. With keys P4 or P6

, you come to the option Time and Date.

Confirm again with key P3 and there is the view on the display Adjusting of

time and precise date and through the keys P4 or P6 you pass from

option to option through the key P3 you confirm the command and you change

its value again through the keys P4 or P6 . When you choose the wished

value it is confirmed with key P3 . To enter or return for a step backwards use

the key P1 .

 Set programming time for Ignition and Extinguishing of boiler BIOlux UNI 20.

(USE THIS OPTION IF YOU HAVE PREVIOUSLY SET THE CORRECT TIME
AND DATE)

As for the time programming, in the option itself there are two sub-options such as:

Modality and option Program.

Modality option serves to select the manner of programming, so, whether you will use

the programming on a daily basis, every day separately (Daily) (Example: Monday,
Tuesday, Wednesday ... Thursday), on a weekly basis (Weekly) (Monday to Saturday) ,
and on weekend basis (week-end) (Monday through Friday-and especially from Saturday
to Sunday-special). You can totally switch off the option Chrono (Disible).

Program option serves for programming of the above options Daily, Weekly and Week­End, ie. adjusting the exact start time and break of operation of the boiler BIOlux UNI

20.

Procedure:
First, you should decide how you wish to program the start time and extinguishing,
whether it be daily, weekly or weekend options. If you choose one of the quoted the
selection will be done in the following way.

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Press the key P3 , after that the falling list is shown on the screen , where the first

option is marked at once Chombustion Power.With keys P4 or P6 , you

come to the option Chrono. Confirm again with key P3 (two options are shown

Modality and Program), then with keys P4 or P6 you come to the

wished option Modality and you confirm it with key P3 . After that, in the sub­menu you come across to the option Daily, Weekly, Week-end and Disable (shown in

Figure 18). With keys P4 or P6 choose one of them and confirm with

key P3 .

Figure 18. View of display after the selection of the option MODALITY

When you have chosen the manner of programming, automatically you return to the view

on display Modality and Program. With keys P4 or P6 you pass to the

option Program and you confirm with key P3 .

In this option, you program the correct time of ignition and extinguishing of boiler
BIOlux UNI 20 that you previously selected in the option Modality. Examples of
programming are shown in Figures 19, 20 and 21.

For further passing use the keys P4 or P6 ,for confirming the key

P3 , to confirm the selected values confirm with keys P5 , and for one step

backwards the key P1 .

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Figure 19. View of display after selection of the option Daily

Figure 20. View of display after selection of the option Weekly

Figure 21. View of display after selection of the option Week-end

8.3 Start of work of BIOlux UNI 20

 STEP 1: Boiler BIOlux UNI 20 connected on hydraulic system.
 STEP 2: Infuse a small amount of pellets in the silos and close it.

 STEP 3: Switch on the boiler.
 STEP 4: Initiate feeding system as the first grains of the pellet might fall into the

combustion cup / space. (This procedure can be applied only when the Automation
system is in OFF mode (Figure 14 : state of regime))

Procedure:

Press the key P3 , then with keys P4 or P6 in sub-menu you

come to the function LOAD, confirm with key P3 , with keys P4 or P6

you pass from OFF to ON, confirm with key P3 . By confirming with key

the feeder is started, until the first grains of pellet start falling into combustion cup/space.

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After that, also, with keys P4 or P6 you pass from ON to OFF, confirm

with key P3 . The feeder stops working. With key P1 exit the sub-menu.

Figure 22. View of display when selecting the function LOAD

 STEP 5: Start up of boiler BIOlux UNI 20.

Procedure:

Press the key P2 , hold pressed for 2-3 seconds until the beep signal. Then on the
display there is the text IGNITION (Figure 14-State of system). The Boiler Stove
started working.

In the conditions when the pellet is according to the standards and when all other
requirements are met for chimney and air flow, the combustion process begins in 5 to 10
min.

During the first firing some increased presence of smoke and the sharp smell should be
expected until the factory coatings against corrosion end or until the final drying or stove
being heated.

The same procedure is used for extinguishing the boiler BIOlux UNI 20, so by a

prolonged pressing of the key P2 until the beep sound is heard, then on the
display is the text Extinguish. (Figure 16-State of system ), we pass to extiguishing of

the boiler BIOlux UNI 20.

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NOTE : These are the values measured during certification.

 The room thermocouple (thermostat) can be connected to automation system. In this case,

it is important to adjust the room temperature, which is the main parameter for the
operation of the boiler BIOlux UNI 20 and water temperature in boiler (70˚C). When
the room thermostat is activated, the boiler has the first need to reach the room

temperature, under the condition that it is limited by adjusted degree of water temperature
in it. There is a possibility that the boiler stops working before the adjusted temperature
of the room thermostat, in this case the set temperature of the water in the boiler should
be raised, Example to: 70˚C.

Warning: Be sure to make the analysis of the flue gases after the finish of installation of the
boiler. Measure the percentage of oxygen (O2).

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8.4 Mistakes during ignition and start of boiler BIOlux UNI 20

All possible errors in the initial stage of operation, ie. during firing and can, even during the
operation, are shown in the display of the automation system. (Figure 14- ALARM error).

Errors and explanations are shown in the table.

All possible problems and stoppage in the operation of this device can be divided into two major
groups.

 Group I. Stoppage during the first firing and the first firing after purchase of the boiler

or the first putting the boiler into operation during the day.

 Group II. The delay that occurs when the boiler has already been in operation process ,

the display is there is a notification on the display ( Run Mode) , but after reaching the
set temperature and rest mode it loses the continuity of combustion .

Group I

The most common indication on the display related to this type of error is Er12.

During the first firing after the installation of the boiler, for the hydro installation there should
follow the instructions from the Section “Start of Operation of the boiler BIOlux UNI 20".
Especially, pay attention to the flue outlet (diameter, number of arcs, sealing, ... ) as well as to

the chimney (diameter , height , insulation , sealing revision openings, dirt in chimney , etc.).
If, after the first attempt of firing there is no significant occurrence of flame and serious increase
in flue gas temperature,there is a signal on the display that the ignition heater is activated, and
yet the boiler goes into extinction phase (Extinguishing). In this case you should check out the
following causes:

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Possible cause 1.

 Problem 1. Poor quality of pellets. Pellets are of low power, and increased humidity
 The procedure for troubleshooting of Problem 1. Provide the pellet of proved quality and

test it.

Possible cause 2.

 Problem 2. Air temperature (which was brought to the fireplace for firing and burning) is

extremely low (below zero ).

 The process of resolving the Problem 2. Prolonging the time for preheating of heaters for

firing t02 to the range of 300 - 400 seconds.

Possible cause 3.

 Problem 3. Mains voltage that is connected onto the boiler is considerably lower than

220- 230V, so the power of the heater is lower.

 The process of resolving the Problem 3. Raising the time for preheating heater for firing,

t02, to the range of 300 - 400 seconds. If this measure does not work then connect the AC
Voltage adapter.

Possible cause 4.

 Problem 4. The amount of pellets in the combustion chamber is insufficient to put the

boiler into operation.

 The process of resolving the Problem 4. Possible mechanical problems with pellet

conveyor. Check the accuracy of dozer.

Possible cause 5.

 Problem 5. There are situations in which there is a flame , but by checking the exhaust

gases it can clearly be seen that there is not enough pellets for the boiler to pass from the
stage of stabilization ( Stabilization) into operating mode ( Run mode). This occurs
because the pellet structure (length, stickiness, the amount of dust, etc.) is such that the
time t03 of fixed feeding is not sufficient.

 The process of resolving the Problem 5. This problem is eliminated by extending the

time of fixed feeding, t03. Recommendation is that this time is extended cautiously, first
for ten or fifteen seconds, and if that is not enough then for another five seconds and so
on. After that, resolving the troubleshooting should be combined with the procedure from
the following item.

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Possible cause 6.

 Problem 6. After the fixed phase of feeding (t03) there the flame occurs, but at this stage

of t04, during this period it is not possible to pass into the stabilization (Stabilization) ,
and the flame is becoming weaker so there is a decrease of the temperature of flue gases
and shutting down (extinguishing). This problem occurs because of the varying quality of
pellets.

 The process of resolving the Problem 6. Reduce the time t04. It is recommended that you

do it carefully. It is possible to combine this procedure with the solution contained in the
previous item.

Possible cause 7.

 Problem 6. The boiler is connected to the room thermostat. By increasing the set

temperature on the room thermostat the boiler does not enter the firing phase (Ignition)
and there is not activation of the firing heater.

 The process of resolving the Problem 7. Check whether the temperature in the room is

really lower than the set temperature. Also check time programming for the room
thermostat and finally check the correct functioning of the room thermostat.

Group II

The most common indication on the display related to this type of errors is Er03.

Possible cause 1.

 Problem 1. The boiler BIOlux UNI 20 was fired and in was in the operating mode

(Run mode), but it came to the stoppage; and when it stopped again and got the command
from for work either from the boiler thermostat or room thermostat. The combustion
chamber is, in such situations, full of unburned pellets.

 The process of resolving the Problem 1. Check the values of the parameters A26, Th28

and Th06. Maybe there was an accidental changing of their values. Parameter A26 needs
to be 1 , the parameter Th06 between 60 and 65, while the parameter Th 28 in any case
should for at least two degrees lower than Th06. In such cases parameters should be
changed, empty chamber (burning bowl) and then restart the boiler.

Possible cause 2.

 Problem 2. The boiler BIOlux UNI 20 was ignited, and entered the operating mode

(Run mode), but as time goes on there comes to an increasing accumulation of pellets at
the bottom of the combustion chamber. As the time goes on the unburned pellet fills the

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combustion chamber and a reduction in the flame and the boiler is extinguished.
(Extinguishing).

 The process of resolving the Problem 1. Increase the fan power. It is best to increase the

fan power in all modes through the function of calibration (Calibration-exhaust fan).

Possible cause 3.

 Problem 2. Boiler BIOlux UNI 20 works, but in the course of work there comes to a

stoppage and a sign is displayed-Modulation, and then to the Safety shutdown
(Extinguishing). At the end the display indicates the error Er05.

 The process of resolving the Problem 3. This occurs because the flue gas temperature is

too high. The most common causes are contamination of the boiler, the chimney is too
strong, too strong fans in operating mode, excessive loading of pellets, pellet
characteristics, and so on. The delay can be eliminated by adjusting some of the
parameters or by increasing parameters for passing the boilers into modulation and safety
shutdown, due to flue gases, which are parameters Th07, Th08.

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8.5 Maintenance of boiler BIOlux UNI 20.
Boiler BIOlux UNI 20 requires daily and periodic cleaning.

 Daily cleaning also refers to the area of the combustion chamber ie. Combustion cup

where by the constant ejection of ash allows a better working of electric heaters for
firing and a better combustion ie. A bigger amount of air through the slits in the cup.
Also, the ash, even in the course of a day begins to accumulate on the bottom, the
space around the combustion space. At the average parameters of combustion of 100
kg of pellets 1 kg of ash produced.

 In every 3 to 4 days it is necessary to clean the space of combustian chamber (figure

23). Also it is necessary to clean the deposits on the walls of the firebox. By this we

provide a better transfer as one millimeter layer of tar and soot decreases the
conductivity by 5%.

 Once in every two weeks it is necessary to open the top cover for cleaning, remove

the turbulators and from the whole available part of the boiler remove tar and soot
(Figure 23). All that is removed can be picked off through the combustion chamber.
Also, at that time, flue gas pipe should be removed from the rear of the boiler as to be
cleaned from ashes and soot (NOTE: Pay attention to the probe for the flue gases

when removing the chimney).

If, during the cleaning in the boiler there appears the condensation it is necessary to collect the
condensed matter and the whole boiler inside should be coated by base means for cleaning or
else by means of water solution of constyruction lime. In this way the neutralization of acids is
carried out due to condensation.

While maintaining and servicing the boiler, the boiler is to be switched off
the power supply.

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Figure 23. View of elements that are dismantled during the cleaning

In this way the boiler is conserved at the end of the heating season. In this
situation, close all openings of the boiler to prevent the circulation of air through
the boiler as the moisture can occur in the boiler as well.

Maintenance of the boiler is one of the most essential factors for the length
of working life of the boiler. It is particularly important that the boiler be cleaned
when out of operation season and neutralization of acids be done as already
described.

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8.6 Name plate.

The nameplate is stuck on a well visible place on the boiler and includes the following
(see the image in the item: STICKERS):

1.Tehnical data on sticker:

 Manufacturer (Radijator inženjering)
 Serial number of boiler (example: N°:171115001)
 Year of product (example: 2015)

 Type of boiler (BIOlux UNI 20)
 Nominal power of boiler (19,7kW)

 Heat output range (5,90– 19,7kW)
 Necessary chimey draft (12Pa)
 Electric voltage (230V)
 Frequency (50Hz)
 Current (3,04A)
 Nominal electrical power (500W)
 Max.extended el.power (200W)
 All.el.power (700W)
 Weight boiler (267kg)
 Quantity of water in boiler (40L)
 Class boiler according to EN 303-5
 Class fuel - pellets (C1)
 Max. pressure (3 bar)
 Max. temperature (90°C)

2. Sticker of importer

3. OEEO

4. Other markings on the boiler

99

Radijator Inženjering d.o.o, 36000 Kraljevo, Živojina Lazića - Solunca br.6, Srbija

tel. [phone], fax. [phone], http://www.radijator.rs

e-mail: [e-mail]

8.7 Declaration

100

Radijator Inženjering d.o.o, 36000 Kraljevo, Živojina Lazića - Solunca br.6, Srbija

tel. [phone], fax. [phone], http://www.radijator.rs

e-mail: [e-mail]

8.8 Sticker.

On boiler BIOlux UNI 20 there are stickers identifying the connections as well as labels
against the risk of electric shock, stickers for scheme of connections etc.

Labels that indicate connection to the installation:

1. Sticker (Hot water) 32mm x 74mm

2. Sticker (Cold water) 32mm x 74mm

3. Sticker (Hydraulic scheme) 148mm x 210mm

101

Radijator Inženjering d.o.o, 36000 Kraljevo, Živojina Lazića - Solunca br.6, Srbija

tel. [phone], fax. [phone], http://www.radijator.rs

e-mail: [e-mail]

Labels that indicate the presence of electricity high voltage and danger:

1. Sticker (Input with low voltage 12V) 60mm x 80mm

2. Sticker (Hayardous voltage - BIGGER) 100mm x 150mm

102

Radijator Inženjering d.o.o, 36000 Kraljevo, Živojina Lazića - Solunca br.6, Srbija

tel. [phone], fax. [phone], http://www.radijator.rs

e-mail: [e-mail]

3. Sticker (Safety electrical connection) 20mm x 30mm

4. Sticker (Presence of voltage)

Labels that indicate warning:

1. Sticker (Exposed Exposed moving parts can couse seveire injury) 30mm x 80mm

2. Sticker (Only an approved installer is authorized to start boiler)
65mm x 247mm

103

Radijator Inženjering d.o.o, 36000 Kraljevo, Živojina Lazića - Solunca br.6, Srbija

tel. [phone], fax. [phone], http://www.radijator.rs

e-mail: [e-mail]

3. Sticker (Warning)

4. Sticker (Waste)

104

Radijator Inženjering d.o.o, 36000 Kraljevo, Živojina Lazića - Solunca br.6, Srbija

tel. [phone], fax. [phone], http://www.radijator.rs

e-mail: [e-mail]

Labels with technical data:

105

Radijator Inženjering d.o.o, 36000 Kraljevo, Živojina Lazića - Solunca br.6, Srbija

tel. [phone], fax. [phone], http://www.radijator.rs

e-mail: [e-mail]

8.9 Manufactured

RADIJATOR Inženjering D.O.O.
Živojina Lazića Solunca br.6

36000 Kraljevo, Srbija

106

Radijator Inženjering d.o.o, 36000 Kraljevo, Živojina Lazića - Solunca br.6, Srbija

tel. [phone], fax. [phone], http://www.radijator.rs

e-mail: [e-mail]

9. 9. Warranty

1. Co.”Radiator Engineering” covers different warranty periods for different parts ( as
specified further on) only if the following conditions of guarantee are fulfilled:

1.1. Boiler must be connected to the aforementioned hydraulic schemes of technical

instruction , especially pay attention to the safety valves, thermal fuse swelling, mixing
valve for protection of the cold portion of boiler or against condensation, the range of
work pressure of boiler,r operating temperature of the boiler, the conditions in the boiler
room, etc.(see item 3)

1.2. Boiler must be connected to the chimney of prescribed cross-section, characteristics of

insulation and height. (see item 3.4)

1.3. Flue gas outlet from boiler to the chimney must be constructed according to the technical

instructions.

1.4. The said electrical connections must be done on the boiler according to the technical

instructions, particularly this refers to the characteristics of the room thermostat, the
characteristics of the power supply, which must be within certain limits.

1.5. The user must follow the following instructions on how to use and maintain the boiler.

(see item 8)

2. Warranty statement

We herewith declare:

 the product has the prescribed and declared quality properties . We are committed, we

will, on the request of the buyer, if he timely submits the Request for the repair within the
warranty period, do at any expense all repairs, so that the product will operate in
accordance with the declared properties,

 that the product is will operate flawlessly within the warranty period if the instructions

for the use, installation and operation are respected,

 that in the warranty period will be ready to remove all product failures and keep in stock

all the necessary spare parts,

 warranty period starts from the DATED OF PURCHASE AND LASTS FOR 60 or

72 MONTHS, from the date of manufacture ( the date of manufacture is located on
the label on the back of the boiler ),

 60 MONTHS WARRANTY VALID ONLY IF THE BOILER service regularly by

the central service “RADIJATOR INŽINJERING”, within the period specified for
the same (in text below),

 warranty is valid if the warranty card is stamped by the Seller, with the registered

date of purchase and the attached Sale Invoice/Bill. IT IS ALSO IMPORTANT TO
HAVE THE ORDER FOR COMMISSIONING (certified by the Service).

107

Radijator Inženjering d.o.o, 36000 Kraljevo, Živojina Lazića - Solunca br.6, Srbija

tel. [phone], fax. [phone], http://www.radijator.rs

e-mail: [e-mail]

3. Warranty period of one year applies to the following parts:

 all bearings,
 electric heaters firing.

4. Warranty period of two years applies to the following parts:

 fan,
 boiler automation system with safety thermostat and other elektic parts (pressure switch

for water and pressure switch for flue gases),

 probes for flue gases,
 the probe for temperature of boiler water,
 motor gearbox,
 spirale in feeding system,
 combustion chamber (combustion cap),
 electrical connectors,
 insulating materials on doors and openings for cleaning,
 turbulators.

5. Warranty period does not apply:

 if after each heating season the regular servicing is not performed,
 the replacement of parts in the regular annual maintenance in accordance with the

instructions,

 when failures are made by the purchaser due to improper handling of the product,
 with mechanical failures made during transport and during use (solid objects),
 if the product is installed improperly, contrary to the regulations in force in that area,
 if the customer was using the product over the declared properties in normal

circumstances.

 on the glass door,
 on the handle door.

6. Warranty period expires:

 if it is determined that the defects were removed by the unauthorized persons or

unauthorized service,

 if at repair the original parts were not built in,
 when the warranty period expires.

7. When Reporting failures it is necessary to give the following information:

 name and type of product,
 the date of purchase,
 factory or workshop of the fireplace,
 A brief description of the fault, or lack of,
 full address of owner and contact telephone number, e-mail.

108

Radijator Inženjering d.o.o, 36000 Kraljevo, Živojina Lazića - Solunca br.6, Srbija

tel. [phone], fax. [phone], http://www.radijator.rs

e-mail: [e-mail]

8. Regular annual service

Regular service is performed at the end of the heating season in the period from 15.4. to 31.8
and charged by the established price list of the Co. " Radiator Engineering". Service procedure
by the technical persons performing regular annual service, which are authorized by the
manufacturer for this, including the following operations:

NOTE: The Service Provider is in obligation to inspect all of the
following parts ( from the list ) feeder and exchanger, and if it comes to
replacing of any parts of the same, the user receives the above-mentioned
warranty and guarantee for another 12 months placed on the body of the
boiler ( exchanger ). The warranty can be extended up to 5 years from the
date of commissioning. Service and extension of service can be performed by a
person sent by the Central Service of the Co. "Radiator engineering ". For
not changed parts, after the servicing work, the service guarantee is not valid.

 dismantling of pellet conveyor from the boiler, checking conveyor and checking bearings

and lubricating;

 Bearing must not have difficulty in turning or cracks in the in the housing. Contrarily the

bearing is replaced. If it is determined that the damage to the bearing is due to intrusion

of solid objects into the pellet carrier (due to user’s mistake or the manufacturer of pellet
mistake), Co. “Radiator Engineering” shall charge value of the bearing. If the damage to

the bearing is due to the withdrawal of the flame into the pellet transporter itself for
reasons of poorly set parameters when using the boiler, Co. “Radiator Engineering” shall
charge the value of the bearing.

 dismantling of combustion cup on combustion chamber and cleaning the space below

combustion cap. Checking condition of combustion cap;

 checking and cleaning probe of flue gases;
 checking and cleaning fan;
 checking the sealing of door;
 check the maintenance of the boiler heat exchanger.
 Cleaning flue duct.

108

e-mail: [e-mail]

108

109

Radijator Inženjering d.o.o, 36000 Kraljevo, Živojina Lazića - Solunca br.6, Srbija

tel. [phone], fax. [phone], http://www.radijator.rs

e-mail: [e-mail]

GARANTNI LIST / GUARANTEE LIST

Fabrički broj / Factory No.

60 MESECI/ 60 MONTHS

Garantni rok / Guarantee period

Tip kotla / Boiler type

Datum proizvodnje /
Date of manufacture

Potpis ovlašćenog lica /

Signature of Authorized person

_________________________________________

pečat / stamp

Prodato u firmi / Company of Sale

Potpis / Signature

_________________________________________________________

pečat / stamp

Adresa / Address

Telefon / Phone

Datum prodaje / Date of Sale

*Potrosač ima sva prava na osnovu Zakona o zaštiti potrošača ("Sl.glasnik RS", br. erbia62/2014). Garancija ne isključuje niti utiče na prava potrošača koja proizilaze iz zakonske odgovornosti prodavca za nesaobzirnost robe u ugovoru./ The

consumer shall exercise all rights under the Consumer Protection Law (“OJ of RS” No 62/2014). The guarantee does not exclude nor affect the consumer’s rights derived from the legal liability of the seller for any lack of conformity of the goods

under a Contract.

*Gore navedeno važi za kupce na prostoru Republike Srbije./ The aforementioned applies to purchasers of the Republic of Serbia.