Aritherm BioComp 40 kW Owner's manual

INSTALLATION, OPERATION
AND MAINTENANCE
For a sustainable future. • BioComp 40 - 150 kW

2
TABLE OF CONTENTS
General .........................................................................................................3
Contents of delivery .....................................................................................3
Transportation, storage and opening the package ....................................4
Technical data...............................................................................................5
Dimensions ...................................................................................................6
Boiler installation .........................................................................................7
Pipe installation ....................................................................................... 8-9
Electrical installation ...........................................................................10-12
Flue gas fan installation .............................................................................13
Burner installation .....................................................................................14
Ash screw installation .........................................................................15-16
Commissioning ..........................................................................................17
Maintenance .........................................................................................18-20
Warranty, decommissioning and contact information ...........................21
Declaration of conformity .........................................................................22
Standard delivery .......................................................................................23
Accessories ............................................................................................24-25
Spare parts ............................................................................................26-27
Notes ...................................................................................................28-31

General
e BioComp-series bio boiler is economical, manageable and environmentally friendly. All
the boilers in the series are available as either right or left handed, with maintenance and ash
removal hatches in front. e boiler is equipped with an integrated ash chamber as standard.
e boiler can be equipped with Ariterm MultiJet-, BioJet- and HakeJet burners, or Axon-
pellet burner. e fuels that can be used with the boiler, depending on the burner, are wood
chip, pellet, peat, sawdust etc.
e standard package of the BioComp -boiler includes an automatic convection part cleaning,
a flue gas fan and a plate heat exchanger with pump. e automatic convection part cleaning
significantly aids/reduces maintenance work required and guarantees good efficiency. e flue
gas fan ensures the required underpressure in the fire chamber. Large maintenance and cleaning
hatches facilitate the cleaning of the BioComp -boiler. Available accessories include e.g. fire
chamber ash screw and ash box.
This manual applies to models: Left Right
BioComp 40 kW 5033589 5033590
BioComp 60 kW: 5033591 5033592
BioComp 80 kW: 5033593 5033594
BioComp 120 kW: 5033595 5033596
BioComp 150 kW: 5033597 5033598
Contents of delivery (Page 23)
e boiler delivery includes:
• Bio boiler with hatches
• Cleaning equipment
• Smoke duct and flue gas fan
• Automatic convection cleaning
• Plate heat exchanger and pump
Accessories:
• Arimatic 151 control centre
• BioComp 40 -control (automatic cleaning, heat exchanger pump, flue gas fan)
• Fire chamber ash screw and ash box
• Fire chamber ash screw with extra length
• Secondary ash screw
• Convection part ash screw and ash box
• Electric resistance with thermostat 6 or 9 kW (to be installed on the boiler’s electric resis-
tance connection)
• Oil burner equipment (hatch set for BioComp 60 kW model)
• Axon/PX52 pellet burner equipment (hatch set for BioComp 40 model)
• BeQuem 40 pellet burner set BioComp 40 kW-malliin (burner flange)
• BioJet/HakeJet adapter flange (BioComp 60/80/120/150-models)
3

4
TRANSPORTATION, STORAGE AND OPENING THE PACKAGE
Reception
e boiler is delivered in a wooden frame. It is on a platform from which the boiler can be
lifted safely. e package should be opened as close to the installation site as possible. e
boiler has been insured against possible transport damage from the factory to the first point of
storage by the manufacturer. It is important for the receiver of the boiler to check the condition
of the boiler before accepting the delivery. In case of damage, the dealer should be contacted
immediately.
Storage
e boiler can be stored outside if it is covered from the rain. However, the recommended
storage of the boiler is indoors.
Opening the package
After opening the package, use the equipment list to check that all the accessories have been
delivered.
Disposing of the package: the plastic hood is landfill waste, the planks can be burned.

5
BioComp
40
BioComp
60
BioComp
80
BioComp
120
BioComp
150
40 60 80 120 150
495 640 786 1035 1193
175 280 330 448 567
3,0 3,0 3,0 3,0 3,0
130 130 130 130 130
BioComp
40
BioComp
60
BioComp
80
BioComp
120
BioComp
150
895 895 895 1095 1095
430 500 640 720 820
0,13 0,18 0,29 0,45 0,58
11,1 10,6 10,5 10,8 10,5
250x250 360x360 400x400 440x440 480x480
139 139 139 139 139
150 150 150 200 200
5 5 5 5 5
50 50 50 50 50
25 25 25 25 25
15 15 15 15 15
57 57 75 120 150
UPS 25-40 UPS 25-40 UPS 25-60 UPS 25-80 UPS 25-80
TECHNICAL DATA
Maintenance hatch
Ash hatch
Fire chamber ash screw (accessory)
Convector ash hatches
Burner opening
Convector maintenance hatch
Viewing screen
Flue gas fan
(can also be installed in place of
convector ash hatch)
Boiler
Power, kW
Weight, kg
Volume, l
Max operating pressure, bar
Max operating temp., °C
Fire chamber measurements
Height, mm
Diameter, mm
Volume, m3
Fire surface load, kW/m2
Burner opening, mm x mm
Chimney duct, Ø mm
Chimney, min Ø, mm
Chimney min length, m
Flow/Return, DN
Expansion connection, DN
Thermostat connection, DN
Heat exchanger, power kW
Heat exchanger pump

6
1. Boiler water overheating protection DN 15
2. Spare DN 15
3. Boiler water temperature sensor DN 15
4. Fire chamber sensor connection DN 15 (BC40 DN 20)
5. Fire chamber sensor connection DN 20 (BC40 DN 15)
6. Cold water Ø 22 Cu
7. Warm water Ø 22 Cu
8. Plate heat exchanger
9. Heat exchanger pump
10. Bleeding screw for the water network
11. Expansion / relief valve DN 25
12. Flow to network DN 50
13. Return from network DN 50
14. Electric resistance connection DN 50
15. Drain connection DN 20
16. Burner opening, right or left side
17. Maintenance hatch
18. Viewing screen
19. Front convector cleaning hatch
20. Rear convector cleaning hatch
21. Ash hatch
22. Cleaning hatch
23. Convector cleaner motor
24. Ash screw motor
25. Ash screw
26. Smoke duct Ø 139
27. Biojet cooling connections
DIMENSIONS

7
The installation of the boiler can only be conducted by a professionally qualified installer. The
installation should be carried out so that it fills at least the country’s minimum requirements
applicable to heating systems in question. The boiler’s electrical installations can only be carried
out by a professional with the required proficiencies.
Space requirements
e boiler room must meet the local fire classification requirements. In the front and on one
side of the boiler there should be approximately 1 m of free space for cleaning and maintenance
operations. Above the boiler there should be at least the boiler’s height of free space for cleaning
the convection ducts. Furthermore, enough space should be left for the maintenance of the flue
gas fan. In the space plan the space required by the attached burner and ash screws must also be
taken into account.
Flue connection and combustion air opening
e BioComp boiler is equipped with a flue gas fan which ensures the required underpressure
in the fire chamber. e standard boiler has a chimney duct at the back of the boiler but the
duct can also be transferred to either side by changing places with the convector ash hatch.
CHIMNEY RECOMMENDATION: stainless or acid proof
IMPORTANT!!
Availability of sufficient amount of combustion air is important for clean burning and sound
functioning of the boiler. The combustion air opening must not be covered up. The free area of
the combustion air opening must be approximately 500 cm2 / 100 kW.
Keep the boiler room door closed when adjusting the burner! This ensures that the combustion
air supply corresponds to the normal operating situation.
BOILER INSTALLATION
Minimum Ø
Minimum length
Combustion air
opening
BioComp 40 BioComp 60 BioComp 80 BioComp 120 BioComp 150
Ø 150 mm Ø 150 mm Ø 150 mm Ø 200 mm Ø 200 mm
5 m 5 m 5 m 5 m 5 m
200 cm2
140 x 140 mm
Ø 160 mm
300 cm2
180 x 180 mm
Ø 200 mm
400 cm2
200 x 200 mm
Ø 230 mm
600 cm2
250 x 250 mm
Ø 280 mm
750 cm2
280 x 280 mm
Ø 300 mm

8
PIPE INSTALLATION
Pipe installations
e BioComp -boiler has been designed to operate without an accumulator tank. e boiler
has a large water capacity and it has its own heat exchanger for production of domestic hot
water. It is, however, possible to install an accumulator tank if the boiler is used intermittently
or momentary peaks in consumption such require. e thermostats, overheating protection
equipment and other safety devices are installed according to the burner instructions. Before the
boiler installation, the heating network must be flushed and tested using a hydraulic pressure
test. e sealing of the connections must be checked after the installation. e factory is not
responsible for damage caused by leaking connections.
NOTE! The boiler circulation ensures that the return water temperature is high enough (min 70 °C.).
This is important in order to ensure good combustion conditions and to prevent corrosion to the
boiler body caused by the cold return water (see installation example below).
Installation example
Flow
Return
TI/PI Thermometer/Pressure gauge
TI Thermometer
FV Safety valve
PA Expansion tank
LA Low-water cut off device
Cold water

9
Safety valve installation (not included in the delivery)
e valve must be CE-marked with the maximum opening pressure of 3,0 bars
and the minimum size of DN 25. e safety valve must be chosen according to the
highest pressure class of the device combination. Do not install a closing device (valve
or similar) between the valve and the boiler. e outlet pipe must be measured and
installed so that it does not limit the outlet capacity of the valve or cause a dangerous
situation when the valve is in operation.
WARNING! Hot pressurised steam comes out of the valve when it is in operation!
PIPE INSTALLATION
Expansion tank
e size of the expansion tank is chosen as follows:
Closed system: According to the instructions of the expansion tank manufacturer
System capacity = boiler capacity (+ accumulator capacity) + pipe capacity + radiator capacity
Domestic hot water production
e BioComp -series boilers have an efficient plate heat exchanger for domestic hot water
production which means that a separate accumulator is not usually needed. e pressure
capacity of the plate heat exchanger is 10 bars. An external heat exchanger of a desired capacity
can also be connected to the system.
System capacity
(litres)
Opening pressure
(bars)
Pre-pressure
(bars)
Tank capacity (litres)
70°C 90°C
500 3,0 0,5 35 80
1000 3,0 0,5 80 140
1500 3,0 0,5 80 140
2000 3,0 0,5 140 200

10
ELECTRICAL INSTALLATION
e standard features of the BioComp -boiler include a heat exchanger pump and an automatic
cleaning. ese have been connected to the terminal box at the factory. e flue gas fan is also a
standard feature. e fan can in 60-150 kW models be installed either at the back of the boiler
or on the side instead of the ash hatch. e 40 kW model has an integrated flue gas fan at the
back of the boiler. e functions can be controlled by Arimatic 151 -control center or with
BioComp 40/60-150 kW -control centres.

11
WIRING DIAGRAM
Terminal box
1. Open the two screws at the bottom of the
front panel of the boiler. 2. Open the front panel fastening screws located on the top of the boiler.
3. Cleaning motor (10) and heat exchanger
pump (11) terminal box.

12

13
FLUE GAS FAN INSTALLATION
e boiler is supplied with a flue gas fan. Install the fan on suitable side of the boiler (either at
the back or on either side instead of the rearmost convector ash hatches).
Delivery includes:
- Flue gas fan (includes capacitor case)
- Flue pipe between the boiler and the fan (including bolts)
- Flue duct extension pipe from fan to chimney
Install the flue gas fan to the flue pipe. As a
sealant heat resistant mass or sealing strip
can be used.
Installation
Attach the ue pipe to the boiler with two
M10x60 bolts.
Tighten the fan locking bolt and install the ue
duct extension pipe.
Flue gas fan alternative installation position on
the side of the boiler. Detach the convection part
ash hatch and install the flue gas fan instead.

14
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e burner is installed to the burner opening on the side of the boiler. MultiJet burner fits
directly to the opening. Burner flanges for BioJet and HakeJet burners, Axon/PX52-pellet
burners and oil burners (BioComp 60 only) are available as accessories.
e gap between the burner and the flange must be sealed with heat resistant sealant paste.
Burner installation and use according to burner manual.
Alternative heating methods
With an oil burner:
An oil or gas burner can be installed into the burner hatch with oil burner accessories. A flange
with a brick is available for BioComp 60 kW. e brick has an opening which is 100 mm in dia-
meter.
Note! An oil burner cannot be used simultaneously
with a bio burner.
With electricity:
An electric resistance (6 or 9 kW) can be installed into the DN 50 connection on the side of the
boiler (drawings on page 6, position 14). e electric resistance is equipped with a regulating/
overheating thermostat TY3. More detailed installation instructions are supplied with the ther-
mostat.
Fuse sizes: 6 kW resistance 3x10 A and 9 kW resistance 3x16 A.
Power supply: 400 V, 3~, 50 Hz
NOTE! A safety switch must be installed to the resistance power supply.
BURNER INSTALLATION
1. Installation of the resistance 2. Installation of the thermostat

15
ASH SCREW INSTALLATION
Push the primary ash screw inside the boiler. Install the ash screw thrust bearing.
Install the motor adapter flange with four
M8x25 countersunk screws.
Install the ash screw adapter flange onto the
motor adapter flange.
Insert the motor into the primary screw shaft. Push the motor into the mounting flange.

16
ASH SCREW INSTALLATION
Fasten the motor with four M10 hex nuts into
the mounting flange
Fasten the motor into the ash screw shaft with
M10x20 hex nut.
Tighten the hex nut carefully. Install the bearing cover plate.
Ash screw with extension piece. Ash screw with ash box.

17
COMMISSIONING
Before starting up the heating system the following must be checked:
• the heating network and the boiler are full of water, pressure at least 0,5 bar
• the damper plate is open, if applicable
• the circulation pump is in operation
• the network valves are open
• the combustion air opening is open
• the safety valve has an unobstructed connection to the boiler and is in working order
Start the burner and test its operation as instructed in the burner manual. Make sure that the
circulation is working and remove the air that has accumulated in it.
Adjust the flue gas fan power so that the under pressure in the fire chamber is about 10-30
Pa whilst the burner is in operation (check the recommended under pressure from the burner
manual). The operating intervals for the ash screw and the automatic convection part cleaning
can be adjusted from the Arimatic control centre. Detailed instructions can be found from the
control centre user manual.
Daily use and maintenance
The daily use of the boiler is dependent on the chosen fuel and the heating requirements.
Arimatic control centres control the burning automatically. A prerequisite for a well-operating
system is correctly adjusted burning equipment and a sufficient underpressure in the fire
chamber.
WARNING: When changing fuel quality, always readjust the system! If necessary, check the
suitability of the fuel from the equipment supplier!
NOTE! When field biomass or corresponding fuel with higher risk of corrosion is used it
is important to ensure that the boiler water temperature is kept high enough to avoid
condensation. The return water temperature must not fall below 70 °C. Furthermore, regular
checks that no condensation occurs on the fire and convection surfaces must be performed.
It is therefore good to acknowledge that the fuel type has an effect on the boiler’s lifetime.
NOTE! The maintenance interval of the system depends greatly on the chosen fuel and the
correct adjustments of the burner. On the average, the boiler needs to be cleaned every 2-4
weeks.

18
MAINTENANCE
Maintenance intervals
e following maintenance intervals are indicative and may vary considerably according to the
chosen fuel and the heat load. Note that keeping up a very small fire stains the boiler heavily.
At first the maintenance is to be performed more reqularly in order to determine the suitable
interval for the maintenance. If the fuel quality changes the maintenance interval must be
redetermined. During winter the heating requirement is greater than in the summer and
therefore the maintenance interval may be shortened compared to summer.
*) Using fuel that creates a lot of ash will naturally increase the amount of ash and thus shorten
the maintenance interval.
BioComp -series Interval*)
Sweeping the convection part Every 4-6 months. Spirals to be removed from
the convection part before the sweeping.
Sweeping the fire chamber Once a year.
Ash removal from the fire chamber Inspection: 1-2 times a month. If the system has
fire chamber ash screws the interval is longer.
Ash removal from under the convection part Inspection: Once a month. If the system has
convection part ash screws the interval is longer.
Visual inspection of the boiler Inspection: Once a month (pipe connections).
Checking the safety valves Twice a year.
Checking the tightness of the sealings and
hatches (replace if necessary) Inspection: Once a month.
Burner maintenance according to the burner
manual

19
MAINTENANCE
Ash removal from re chamber Ash removal from convection part
Sweeping the re chamber
Clean re chamber surfaces at least once a
year. Use bent brush arm and round brush.
Check the re chamber ash compartment1-2
times a month and remove the ash with an ash
rake if required. The cleaning interval of the ash
compartment depends on the fuel used and the
power needed.
If the boiler is equipped with an ash screw the
maintenance interval lengthens. However, from
time to time the ash from the sides of the ash
compartment should be removed.
Check the ash compartments of the convection
part once a month and remove the ash with
the ash rake if required. The cleaning interval
of the ash compartment of the convection
part depends on the fuel used and the power
needed.
If the boiler is equipped with an ash screw the
maintenance interval lengthens.

20
MAINTENANCE
Checking the convection part
The boiler has been equipped with an
automatic convector cleaning but the
convection part should be checked 2-3 times
a year. Open the convector maintenance hatch
and lift it aside. NOTE! The hatch is heavy.
Sweeping the convection part
If the pipe surfaces look sooty they must
be swept manually. Lift the spirals off the
convection pipes.
Check the pipes of the convector and remove
y ash from the surfaces. Test that the spirals
move freely in the pipes. If the convection pipes
look clean no manual sweeping is required.
Use straight brush arm and tube brush. Check
through every convection pipe. Push the brush
all the way through to the ash compartment
then it is easy to pull back. Put the spirals back
and close the maintenance hatch.