MPM Wood Plus 34 kW User manual

1
ORIGINAL INSTRUCTIONS
Boiler user manual - MPM Wood Plus 34 kW
MPM Wood Plus 34 - Wood gasifying boiler.
MPM PROJEKT MARCIN NYKIEL
Boiler manufacturer
Ecological
[e-mail] [phone] WWW.MPM-KOTLY.PL

2
Statement of conformity .............................................................................................................................................................................................3
Response ECODESIGN................................................................................................................................................................................................4
Response ECODESIGN................................................................................................................................................................................................5
Product Data Sheet in accordance with Commission Regulation (EU) No 2015/1189 .......................................................................6
Product Data Sheet in accordance with Commission Regulation (EU) No 2015/1187 .......................................................................6
1. General information ...............................................................................................................................................................................................7
2. Application of the boiler..........................................................................................................................................................................................7
3. Boiler construction ...................................................................................................................................................................................................7
4. Fuel ...............................................................................................................................................................................................................................8
5. Boiler design diagram...............................................................................................................................................................................................8
6. Technical specifications ..........................................................................................................................................................................................9
7. Transport...................................................................................................................................................................................................................10
8. Boiler installation and requirements.............................................................................................................................................................11
8.1. Open layout.....................................................................................................................................................................................................11
8.2. Closed system ................................................................................................................................................................................................11
8.3. General requirements for boiler rooms................................................................................................................................................12
8.4. Setting up the boiler.....................................................................................................................................................................................12
8.5. Connecting the boiler to the chimney ...................................................................................................................................................13
8.6. Connection of the boiler to the central heating system .................................................................................................................13
8.7. Boiler interaction with an accumulation tank ....................................................................................................................................14
9. Operation and use of the boiler.......................................................................................................................................................................14
9.1. Filling the system with the heating medium........................................................................................................................................14
9.2. Start-up and operation of the boiler ......................................................................................................................................................14
9.3. Low-temperature corrosion......................................................................................................................................................................15
9.4. Boiler shutdown ............................................................................................................................................................................................16
10.Boiler settings ........................................................................................................................................................................................................16
11.Cleaning and maintenance of the boiler.......................................................................................................................................................16
11.1. Seasonal maintenance..............................................................................................................................................................................17
11.2. Emergency shutdown of the boiler......................................................................................................................................................17
12.Behaviour in the event of a flue gas fire .......................................................................................................................................................17
13.Security.....................................................................................................................................................................................................................17
14.Security.....................................................................................................................................................................................................................18
14. 1. Thermometer.............................................................................................................................................................................................18
14.2. Mechanical draught excluder ................................................................................................................................................................18
14.3. Thermostatic valve DBV-1 .....................................................................................................................................................................18
15. Warranty conditions...........................................................................................................................................................................................18
16. Disposal of the boiler..........................................................................................................................................................................................19
17. Examples of failures and how to solve them ..............................................................................................................................................19
18. Warranty repairs..................................................................................................................................................................................................20
WARRANTY CARD ....................................................................................................................................................................................................21

3
Statement of conformity

4
Response ECODESIGN

5
Response ECODESIGN

6
Product Data Sheet in accordance with Commission Regulation (EU) No 2015/1189
Model identifier(s): MPM Wood Plus 34
Stoking mode: Manual: the boiler should be operated with a hot water storage tank of a volume of at least 1000 litre
Condensing boiler: no
Solid fuel cogeneration boiler: no
Combination boiler: no
Fuel
Preferred
fuel (only
one):
Other
suitable
fuel(s):
ηs
[x %]:
Seasonal space heating emissions
PM
OGC
CO
NOx
[x] mg/m3
Log wood, moisture content ≤ 25 %
yes
no
80
10
20
421
167
Chipped wood, moisture content 15-35 %
no
no
Chipped wood, moisture content > 35 %
no
no
Compressed wood in the form of pellets
or briquettes
no
no
Sawdust, moisture content ≤ 50 %
no
no
Other woody biomass
no
no
Non-woody biomass
no
no
Bituminous coal
no
no
Brown coal (including briquettes)
no
no
Coke
no
no
Anthracite
no
no
Blended fossil fuel briquettes
no
no
Other fossil fuel
no
no
Blended biomass (30-70 %)/fossil fuel
briquettes
no
no
Other blend of biomass and fossil fuel
no
no
Characteristics when operating with the preferred fuel only:
Item
Symbol
Value
Unit
Item
Symbol
Value
Unit
Useful heat output
Useful efficiency
At rated heat output:
Pn
35,9
kW
At rated heat output
ɳn
82,9
%
At [30 %/50 %] of rated heat output,
if applicable
Pp
[- / N.A.]
kW
At [30 %/50 %] of rated heat
output, if applicable
ɳp
[- / N.A.]
%
For solid fuel cogeneration boilers: Electrical efficiency
Auxiliary electricity consumption
At rated heat output
elmax
-
kW
At rated heat output
ɳel,n
-
%
At [30 %/50 %] of rated heat
output, if applicable
elmin
[- / N.A.]
kW
Of incorporated secondary emission
abatement equipment, if applicable
[- / N.A.]
kW
In standby mode
PSB
-
kW
Contact details
MPM Projekt Marcin Nykiel
Roźwienica 111, 37-565 Roźwienica
Tel. [phone] e-mail: [email protected]
Product Data Sheet in accordance with Commission Regulation (EU) No 2015/1187
KARTA PRODUKTU ZGODNIE Z ROZPORZĄDZENIEM
UE 2015/1187 UZUPEŁNIAJĄCYM DYREKTYWĘ
PARLAMENTU EUROPEJSKIEGO i RADY 2010/30/UE
Supplier's name
MPM Projekt Marcin Nykiel
Roźwienica 111, 37-565 Roźwienica
Item
Unit
model identifier
Wood Plus 34
The energy efficiency class of the model
-
A+
The rated heat output
kW
34
Energy efficiency index EEI:
-
117
Seasonal space heating energy efficiency ηs [%]:
%
80
Any specific precautions that shall be taken when the solid fuel boiler
is assembled, installed or maintained
Each time before installation, start-up or maintenance of the
device, the recommendations contained in the Operating
Manual provided by the manufacturer should be taken into
account

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Fuel gasification boiler: wood. Protected by patent application no. P.437844 and P.444656.
1. General information
The operating manual for the boiler is an integral part of the product and must be handed over to the user also in case
of transfer of ownership. Please read it carefully and keep it for future reference as the information regarding, among
other things, installation, operation, maintenance, safe use, if necessary, can provide appropriate guidance.
The installation of the boiler must be carried out in accordance with the standards and regulations of the country of
destination, according to the manufacturer's instructions and by trained and qualified personnel. Improper installation of
the boiler may cause injuries to people and animals and damage to property for which the manufacturer is not
responsible. The boiler may only be used for the purpose for which it was specifically designed. Any other use of the
boiler must be considered inappropriate and consequently dangerous.
In the event of errors during installation, operation or maintenance caused by failure to comply with the applicable
legislation, regulations or information contained in this manual, the manufacturer waives any contractual or extra-
contractual liability for the damage caused, and the guarantee relating to the appliance becomes null and void.
NOTE!
Please be advised that any unauthorised modifications to the appliance aimed at adapting the boiler to
carry out functions not provided for by the Manufacturer, including combustion processes and the use of
fuels other than those specified by the Manufacturer in this Operating Manual, are strictly prohibited and
constitute grounds for the loss of the guarantee for the appliance.
NOTE!
Boilers meeting the 5th class and ECODESIGN requirements are characterised by a low flue gas
temperature. Operation of such a boiler at a return water temperature lower than 55°C leads to
accelerated corrosion of the boiler exchanger. It is necessary to install a system increasing the return water
temperature, ensuring a temperature of at least 55°C. This is a prerequisite for the efficient operation of
the boiler and the recognition of warranty claims on the integrity of the heat exchanger.
2. Application of the boiler
Low-temperature water boilers for solid fuels with manual feed, type MPM Wood Plus are designed for operation in
open or pumped central heating systems with safety devices in accordance with PN-EN 12828:2013-05. MPM Wood
Plus boilers can operate in a closed system provided that a diaphragm expansion vessel, safety valve, control and
measurement fittings and DBV valve are installed in accordance with PN-EN 12828:2013-5, PN-EN 303-5+A1:2023-05
and recommendations contained in the boiler manual. Boilers installed in accordance with the recommendations of this
manual are not subject to the UDT. Boilers of the MPM Wood Plus type are recommended by the manufacturer mainly
for heating flats, detached houses, commercial pavilions, services, catering establishments, workshops, etc., where the
supply water temperature does not exceed 90°C and the operating pressure is 1.5 bar. The required flue gas draught
after the boiler is approx. 0.20 mbar. MPM Wood Plus boilers can be used to prepare domestic hot water with the use of
a heat exchanger installed in accordance with the PN-EN 12828:2013-05 standard. The selection of a boiler for heating a
given building should be strictly dependent on the heat balance drawn up for the heated premises in accordance with the
PN-EN 12831:2006 standard.
NOTE!
Due to the operating specifications of the solid fuel central heating boiler, supervision of the unit's
operation in the form of daily monitoring of the operating parameters is required. In the event of a power
failure, continuous monitoring of the boiler operation is required!
3. Boiler construction
The MPM Wood Plus boiler is an appliance of modern design, adapted for burning solid fuels (logs of deciduous trees -
beech or birch), gasifying the fuel. The gasification boiler has a structure which has separate chambers, in one of which
the process of fuel degassing takes place (production of combustible gas), while in the other - ceramic chamber, the
combustion of gases takes place. The fuel gasification boiler should be operated in conjunction with a buffer tank. The
minimum volume of the buffer tank is given in the Product Data Sheet in accordance with Commission Regulation (EU)
No 2015/1189. The MPM Wood Plus boiler is made of approved P265GH grade steel boiler plates with welded
construction. It has a large loading chamber to prevent fuel from hanging up, a movable cast-iron grate, a metal-ceramic
burner, an exchanger with a vertical arrangement of flue channels in which a swirler is installed. It is also equipped with a
draught switch for easier firing and faster passage through the so-called dew point. Air is supplied to the combustion
chamber and ceramic nozzle, with both primary and secondary air adjustable. The burner consists of a metal baffle with a
secondary air supply No. 1 and a ceramic-lined swirl-box, which is an integral part of the burner. Secondary air No. 2 with
circular inlets is supplied to the swirl unit.
The MPM Wood Plus boiler is equipped with a convenient, large loading door and also has a firing and ash door in the

8
front part. An innovation is the introduction of a system of smoke removal from the loading chamber, the smoke
removal duct of the gasifying boiler and the method of forcing the draught of the gasified flue gases, which prevents
the escape of smoke into the boiler room when adding fuel. In the upper part of the boiler, under the casing flap, there is
a clean-out hatch giving access to all heat exchanger channels and the ceramic nozzle. There is a flame viewer in the top
outlet. In both side walls of the boiler there is a cleaning device for removal of impurities generated during the
combustion process. The boiler in the standard version is designed to operate using natural draught, regulated by a
mechanical draught measurer. In the upper part of the boiler there is a muffle for the draught measurer, a safety valve
and a thermometer. In the rear wall there is a supply and return water muffle, a DBV thermostatic valve muffle and a
drain valve muffle. The hot flue gases give up their heat by passing through a steel heat exchanger, which is a system of
vertical convection channels, where they are cooled. The cooled flue gases leave the boiler through a steel flue
connected to the flue pipe at the rear of the boiler. The heat exchanger is fully insulated with 40 mm thick mineral wool.
4. Fuel
The fuel for the MPM Wood Plus boilers is firewood (hardwood logs) with a circumference of approximately 20 - 35 cm.
The wood recommended by the manufacturer is beech or birch. The wood must be dry and seasoned for at least two years.
Burning wet wood reduces the efficiency and adversely affects the service life of the boiler. It is forbidden to burn cardboard
packaging in the boiler, whose unburned pieces can block the airflow through the cast iron grate, as well as plastic packaging
which can damage the ceramic burner and other boiler components, but above all is a health hazard. Fuel for the boiler
should meet the quality requirements contained in Table 7 of the PN-EN 303-5+A1:2023-05 standard. The fuel parameters
are given in the tables below.
Table 1. Fuel parameters according to table 7 of PN-EN 303-5+A1:2023-05
Primary fuel/fuel class
Wood billets/ A
Moisture content*
12% to 20%
Ash content*
≤ 1%
Volatile content*
-
Calorific value
> 17MJ/kg
* Fuel parameters are given in relation to the operating state.
VERY IMPORTANT NOTICE!
It is forbidden to burn plastic materials and flammable materials (e.g. petrol, paraffin, solvent).The above
actions may contribute to boiler (furnace) damage, explosion, fire or damage to the health of the boiler
user.
NOTE!
Continuous use of wet fuels while maintaining a low flue gas temperature leads to accelerated wear of the
boiler, corrosion of the convection ducts, furnace plates, smoke stack and fouling of these surfaces. This is
caused by condensation of the products of combustion: water, nitrogen oxides and sulphur oxides which
create a very aggressive environment favouring accelerated corrosion.
5. Boiler design diagram
Drawing 1. Schematic of the side-loading boiler design
1. Boiler feet
2. Boiler thermal insulation
3. Lateral vent
4. Return water coupler and drain valve
5. Secondary air heating and control duct No. 1
6. Heating and secondary air duct No. 2
7. Secondary air inlets to the combustion chamber
8. Flue duct
9. Boiler water jacket
10. Flue
11. Feedwater coupler
12. Short flap
13. Boiler top cleanout cover
14. Additional boiler insulation - vermiculite board
15. Flame viewfinder
16. Exhaust gas swirler
17. Thermometer
18. Thermal insulation of the boiler
19. Throttle linkage coupler
20. Smoke duct (system)
21. Side loading door
22. Primary air duct
23. Loading chamber
24. Ceramic swirl burner (combustion chamber)
25. Secondary air baffle 1
26. firing-up door
27. Space for firing up the boiler
28. Mobile cast iron grate
29. Ash pan door
30. Air inlet flap
31. Ash chamber
32. Moving grate lever
33. Thrust switch
34. Top cleanout cover

9
6. Technical specifications
Table 2. Technical parameters of the MPM Wood Plus
Nominal heat output
34
kW
Boiler class (according to EN 303-5+A1:2023-05) efficiency/emissions
5 klasa
-
Energy efficiency class
A+
-
Thermal efficiency
90
%
Heating surface
3,6
m2
Boiler height
1200
mm
Housing width
710
mm
Overall width
780
mm
Length without flue
1050
mm
Overall length
1250
mm
Loading door dimensions
250x530
mm
Dimensions of hearth height x length
700x350
mm
Height to the lower edge of the flue pipe
895
mm
Loading chamber volume
~135
dm3
Loading chamber volume
~50
kg
Fuel consumption
~10
kg/h
Sustainability
~5
h
Water flow resistance of the boiler for nominal output
Przy ∆ T= 10K
1,3
mbar
Przy ∆ T= 20K
0,3
mbar
Recommended volume of accumulation tanks
1000
dm3
Indicated operating temperature
60-90
°C
Minimum return water temperature
55
°C
Flue gas temperature at nominal output
125-140
°C
Exhaust mass flow at nominal power
10,8
g/s
Boiler water volume
102
dm3
Boiler weight approx.
490
kg
Max. permissible operating pressure
1.5
bar
Supply and return diameters
DN 40
”
Max. operating temp.
90
°C
Required exhaust line
~0,35
mbar
Min. chimney section/flue dimensions
180x180/ Ø178
mm
Min. chimney height
11
m

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Table 3. Basic dimensions of the boiler MPM Wood Plus
A
B
C
D
E
F
G
H
I
J1
J2
J3
J4
K1
K2
K3
K4
1200
1070
70
1250
1050
1025
895
780
710
65
630
355
80
135
1025
320
225
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
Figure 2. Basic dimensions of the boiler MPM Wood Plus
7.Transport
The boilers are delivered in an assembled condition on a pallet in foil packaging. It is recommended that the boiler be
transported as close as possible to the final installation site in this packaging condition to minimise the possibility of
damage to the boiler casing. All packaging residues must be removed so that they do not pose a risk to people and
animals. The accessories and equipment are located inside the boiler, in the loading chamber. On the other hand, the
manuals and warranty cards are located under the top cleanout cover, packed and protected from damage. The
components are assembled by the installer according to the enclosed instructions. Use suitable lifting gear to lift and
lower the boiler. Before transporting the boiler, it should be secured against shifting and tilting on the vehicle platform
using straps, wedges or wooden blocks.
NOTE!
Transport the boiler in an upright position!