Megatherm MPB Series Instruction Manual

Megatherm wood-pellet burner MPB serie's
Wood pellet burners
MPB 60 & MPB 80
Installation & User
Manual
This manual is for the Installer. Read, understand, and follow these instructions for safe installation and operation.
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Megatherm wood-pellet burner MPB serie's
Contents
1. Warnings, Cautions, and Notes...................................................... 3
2. The principle of working .............................................................. 4
3. Technical specifications ................................................................ 4
4. Boiler ....................................................................................... 5
5. Chi ney .................................................................................. 5
6. Unpacking and Installing the burner …........................................... 6
7. Description of the controller ........................................................ 7
8. Operation functions ................................................................... 9
9. Para eter's .............................................................................. 11
10. Manufacturer's enu .................................................................. 14
11. Roo therostat ......................................................................... 18
12. First use .................................................................................. 19
13. Start of the burner .................................................................... 19
14. Stop of the burner .................................................................... 20
15. Cleaning burner's cha ber ......................................................... 20
16. Restart the burner after an error ................................................. 21
17. Feeder's filling rocedure ............................................................. 21
18. Self cleaning ............................................................................ 22
19. Burner's safety syste s ............................................................. 22
20. Errors ...................................................................................... 23
21. Electrical diagra ...................................................................... 24
22. Warranty .................................................................................. 25
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MPB Wood Pellet Burner Installation Manual - January 2018 - Version 4
Megatherm rreserves the right to change part or parts of this manual at any time without prior notice

Megatherm wood-pellet burner MPB serie's
1. Warnings, Cautions, and Notes
3
Read the safety instructions carefully before
installation. Always follow the safety
instructions during installation and during
maintenance
Installation, operation, service, and other
work must be carried out by qualified
personnel in accordance with local codes and
regulations.
All electrical installation and service work
shall be done by certified and qualified
personnel inaccordance with local codes and
regulations.
Do not perform electrical work unless you
have the required qualifications. Perform a
complete burner shutdown and disconnect
the power supply prior to performing any work
on the burner. Observe all guidelines with
respect to installation, service, or cleaning.
Children and adults should be alerted to the
hazards of high surface temperatures and
should stay away to avoid contact to skinand /
or clothing.
Always follow the instructions for operations
and service.
Only wood pellets are to be
used with this burner. No
other fuel is to be used in
the burner.
NEVER BURN ANY TYPE
OF CORN, CHERRY PITS, STICKS OR
OTHER TYPES OF FUEL IN THE
BURNER.
Burning wood pellets according to
recommendations and the specifications set
forth will assure longer burner life and lessen
potential maintenance issues.
There is a risk of burn from touching the
equipment during operation.
The burner casing, burner body, flange, and
flame trap pipe are hot surfaces during
operation. Keep children away and do not
touch the equipment during operation.
DO NOT install in a
sleeping room.
DO NOT connect to any air
distribution duct or
system.
DO NOT terminate the vent
in any enclosed or
semi enclosed area, such as; carports,
garage,
attic, crawl space, under a sun deck or porch,
narrow walkway or closed area, or any
location
that can build up a concentration of fumes
such
as a stairwell, covered breezeway etc.
Young children should be carefully supervised
when they are in the same room with the
burner.

Megat he rm wo od-p ellet burne r MPB se rie's
2. The principle of working
The burner's operation is based on providing fuel via controlling the feeder
appropriately and also the air fan which steers the burning process. After reaching a
particular temperature of the heating water, the burner goes into the mode of maintaining
the temperature or switches the burner completely off. The ignition of fuel starts
automatically with the help of an igniter and the fire is detected by the fire sensor.
The burner has three modes of operation: Continuous/Single/Analogue (see paragraph 9 /
page 12)
The burner can also control ot Usage Water (WUW or UW) pump or buffers tank's pump.
The WUW pump starts working when the regulator detects too low temperature of the
WUW buffer. It is also possible to stipulate the working mode of the WUW pump – with a
priority or without it. The burner can be also controlled (ON/Off) by the Room Thermostat
or by any external thermostat. The burner is also equipped with the self-control systems
(detecting the malfunction of the temperature's sensors) and mechanisms monitoring the
furnace's work preventing from going beyond the range of safety for the installation of the
central heating.
3. Technical specifications
Type
MPB 60
MPB 80
Heat outup
25-60kW
40-80kW
21.800-51.600Kcal
34.400-68.800Kcal
Maximum pellet consumption 5-12kg/hr 8-16kg/hr
Lenght
(total
)
565mm
595mm
Width
270mm
270mm
Height with feeding pipe 550mm 550mm
Height without feeding pipe 275mm 275mm
Fire tube diameter
Φ180
mm
Φ180
mm
Power supply
230
Volt / 80Hz
230
Volt / 80Hz
Average power consumption
40-50Watt (approx.
)
40-50Watt (approx.
)
Fuel Wood pellet
φ
6-8mm, hymidity <10% Wood pellet
φ
6-8mm, hymidity <10%
Weight
20kg
21kg
Fedder's length
1.5m
1.5
m
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Megatherm wood-pellet burner MPB serie's
4. Boiler
It is important to check that the combustion chamber in the boiler is big enough to ensure
that the flame does not come in contact with the water-cooled walls. Verify that the boiler’s
capacity range complies with the burner. There must be enough space for the ash to
accumulate. The exhaust gas channels should not be so narrow that they can easily be
clogged with ash.
The distance between the front edge of the burner and the rear part of the combustion
chamber should be at least 35 mm for the MPB 6 and5 mm for the MPB 8 burner.
The minimum distance to the bottom of the fireplace depends on the boiler design.
There must be enough space for the quantity of ash build up that is created during at least
one week’s use in the winter heating season.
5. Chimney
We recommend that you have a local chimney sweeper or other corresponding authority
make an inspection and provide advice and instructions on the chimney measurements in
accordance with local codes and regulations.
The chimney should then of a length and diameter that gives a draught of 10 - 25 Pa.
Measures have to be taken if the chimney is smaller or much larger in diameter in order to
give the proper draught and flow.
If there is not enough draught in the chimney, exhaust gases stack in boiler's combustion
camber or in the chimney with the risk of explosion. Also, gas flow into the boiler's room
can happened.
Always check the exhaust gas temperature. Directly after the boiler it should be
from 16 ° C to 25 ° C.
Too high a temperature can damage the chimney and is not economical.
Too low a temperature, a very high chimney, or a large chimney diameter creates a risk for
condensation that can cause corrosion and damage due to freezing.
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Megatherm wood-pellet burner MPB serie's
Unpacking and installing MPB pellet burner
6.1 Unpacking
It is included in the box:
✔ Burner MPB 60 or MPB 80
✔ Electronic controller
✔ Elbow metal pipe
✔ Plastic flexible pipe Φ60
✔ Gas et (white insluation flange)
✔ Scratcher for removing the ash
✔ Clamps for tighing the plastic pipe
✔ Screws for mounting the burner on the boiler
✔ Manual
✔ Self cleaning pipe (optional)
✔ Flange-adaptor (optional)
✔ HUW sensor (optional)
Note: The feeder is delivered at a separated box itself.
6.2 Installing
1. Remove the burner from the box
2. Mount the burner on the boiler's door and srew it
3. If the boiler's fire chamber is small, it is suggested the flange-adaptor to be used
between the boiler and the burner
4. Screw the blac elbow pipe on the burner's top
5. Mount the burner's controller (blac casing) at a convenience location.
Note: In case a room thermostat needs to be connected on the controller, it is better
to connected before the controller is mounted anywhere. The connection for
the Room thermostat is located inside the controller on pins 1 & 2.
6. Connect the water pump (circulator) with the blac cable coming out of the
vontroller
7. Place the feeder in a silo / tan
8. Connect the controlelr with the feeder using the fast connectors (IEC connectors)
9. Turn the power ON and follow the instruction on paragraph 11 / page
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Megatherm wood-pellet burner MPB serie's
7. Description of the controller
Description:
Diodes signalising the status of outputs and the working mode of the driver,
LCD screen used for communication between the device and the user,
Buttons steering the driver's work.
7.1 DESCRIPTION OF BUTTONS:
Πλήκτρο Λειτουργία
1Changes the burner's working mode – “STOP”, “IGNITION”,
“AUTOMATIC WORK”.
2eturn to the previous menu
1Entry on the Menu's parameters
2Saves the change of a parameter
1In the Ignition MODE activates the feeder for the time specified on the
parameter “Filling Feeder Time”
2
• Go to the previous menu or parameter
• Decreases the value of a parameter
1
• In the Ignition MODE activates the ignition procedure
2
• Go to the menu menu or parameter
• Increases the value of a parameter του καυστήρα.
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Megatherm wood-pellet burner MPB serie's
7.2 TECHNICAL CHARACTERISTICS OF THE CONTROLLER
Sensors: KTY-210
Measurement range: 0 – 120 °C
Measurement resolution: 0.1 °C
Time of measurements: 1 s
ata's reading: LCD screen 2x20 signs
Steering outputs:
• Igniter: ~230V 2A (0.8A
• Feeder: ~230V 2A (0.8A
• Burner's fan: ~230V 2A (0.8A
• CH pump: ~230V 2A (0.8A
• WUW pump: ~230V 2A (0.8A
• Cleaning System
Protection:
• Electric Fuse 4A
Inputs:
• Room thermostat: Open contact
• Temperature sensors: KTY-210
• Temperature STB (95°C
Visual signalling:
• LED diodes Signalling the status of
outputs
• LCD screen Messages,
measurements, settings
Power supply: ~230 V 50Hz 2VA
Working temperature: 5°C - 50°C
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Megatherm wood-pellet burner MPB serie's
8. Operation functions
• After switching the burner on, it is appeared on the LCD screen the program's logo
defining the type of the driver and the version of the current software
• While activating, the burner carries out a test of the connected sensors. In case of
one lac ing, on the screen appears an appropriate message (---). The wor of the
burner without a heating water temperature sensor (CH) is bloc ed and an
emergency mode is activated (CH pump is still on).
• Correct connection of sensors causes displaying of actual CH furnace's temperature
and the temperature of useful warm water of the WUW buffer (if the function is
active). On the screen appears which function is currently used by the driver.
The burner may wor in three wor ing modes (“STOP”, “IGNITION”, “AUTOMATIC WORK”).
The mode changes when the “MODE/ ” button is pressed. Activating the “STOP” mode
is possible in all modes after pressing the “MODE/ ” button for 3 seconds. When Stop is
activated, the burner goes at “Burning off” process (if there is fire) and the at “Cleaning”
process.
When the burner is activated for first time, it is on “Stop” mode. Every next time, its status
is saved in the regulator's non-volatile memory. Activating the driver again, automatically
causes switching on of the lately used wor ing mode.
9
PELLETS DRIVER
** REG-03/G v4.0 **
CH:---- C WUW:---- C
STOP
CH:39.5 C WUW:23.6 C
IGNITION...
CH temperature WUW temperature
Burner function

Megatherm wood-pellet burner MPB serie's
In the table beneath a short description of particular functions of the burner, activated
depending on the working mode of the driver, is shown.
FUNCTION'S
NAME DESCRIPTION OF FUNCTIONS
STOP Burner stopped.
FEEDER FILLING Filling the feeder.
Filling stops automatically after about 11 minutes.
IGNITION
The burner is on Ignition process, which mean that has fed with
ignition dose of pellet, the heating element (igniter and the air fan
are working. The mode would be automatically changed after
detecting a flame by the sensor.
CLEANING
The air fan works at full speed for one minute, to remove the
rermaining ashed from the burner's fire chamber. This function takes
place alsoat the first minute of ignition
WORK Heating the boiler up to the set temperature. Showing the actual
power of the burner.
MAINTAIN Sustaining the set temperature (if the burner's working mode is in
the mode of continuous work
BURNING OFF Putting off the burner. Active in the “STOP” mode or in the
temporal working mode of the burner.
STANDBY Standby of the burner for the decline of the temperature of a
hysteresis (if the burner's working mode is in the temporal mode .
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Megatherm wood-pellet burner MPB serie's
9. Parameter's
To move round the menu and to set particular parameters there are four buttons placed on
the driver's panel: “MODE/ ”, “MENU/OK”, “+”, “-”. The parameters chosen by the
user are divided into four groups: (A) “CH FURNACE SETTINGS”, (B) “WUW BUFFER
SETTINGS”, (C) “BURNER SETTINGS”, ( ) “DRIVER SETTINGS”. The division of
particular parameters in groups is shown in the “Settings table”.
➢ CH FURNACE SETTINGS (A)
FUNCTION
NO.
FUNCTION
NAME
SETTING
UNIT
SETTING
RANGE
MANUFACTURER
SETTING
1HEATING WATER
TEMPERATURE ºC 35 - 85 65*
2CH PUMP ACTIVATION
TEMPERATURE ºC20 - 60 35*
3CH FURNACE
HYSTERESIS ºC1 - 20 5*
4FURNACE
MO E --- Winter/Summer Winter*
➢ WUW BUFFER SETTINGS (B)
FUNCTION
NO.
FUNCTION
NAME
SETTING
UNIT
SETTING
RANGE
MANUFACTURER
SETTING
1WUW BUFFER
TEMPERATUR ºC 20 - 80 40*
2WUW SURPLUS
TEMPERATURE ºC 5 - 20 10*
3WUW
PRIORITY --- Yes/No No*
➢ BURNER SETTINGS (C)
FUNCTION
NO.
FUNCTION
NAME
SETTING
UNIT
SETTING
RANGE
MANUFACTURER
SETTING
1BURNER POWER
(WORK) kW 10 - 35 30*
2BURNER POWER
(MAINTAIN) kW 2- 9 3*
3BURNER
MO E** --- Continuous/ Single/Analogue Continuous*
4
SELF CLEANING FREQUENCY
TIME Min 10-480 240
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Megatherm wood-pellet burner MPB serie's
5 SELF CLEANING TIME sec 0-60 0
6BURNER FLAME
MEASUREMENT % 0-100 -------
** Burner has 3 modes: continuous mode, single mode and analogue mode.
Single mode: The burner reaches he desired “HEATING WATER TEMPERATURE “ and
burns off. Then, i s ar s i s opera ion again when he empera ure of he boiler goes down
o he empera ure “HEATING WATER TEMPERATURE - CH FURNACE HYSTERESIS”. The CH
FURNACE HYSTERESIS mus be more han 10
o
C
Continuous mode: The burner reaches he desired “HEATING WATER TEMPERATURE “ and
goes down a 3kW (main ain).When he boiler's empera ure goes down o he empera ure
“HEATING WATER TEMPERATURE - CH FURNACE HYSTERESIS”, he burner increases i s
power from 3kW (main ain) o he maximum burner power (i.e30kW). The CH FURNACE
HYSTERESIS mus be no more han 5
o
C
Analogue mode: The burner reduces i s power 1/3 (for example: from 30kW o 21kW) 10
o
C before he furnace reaches he “HEATING WATER TEMPERATURE “. When he
empera ure of he furnace is 5
o
C before “HEATING WATER TEMPERATURE “, he burner
reduces i s power again 1/3 ((for example: from 21kW o 12kW).
➢ DEVICE SETTIN S (D)
FUNCTION
NO.
FUNCTION
NAME
SETTIN
UNIT
SETTIN
RAN E
MANUFACTURER
SETTIN
1LANGUAGE
SETTINGS ---
Polish/
English/
German/Greek/
Serbian/...
English*
2FACTORY
SETTINGS --- Yes/No ---
3ENABLE SERVICE
MODE --- 000 - 999 112
➢ MANUFACTURER SETTIN S (E)
FUNCTION
NO.
FUNCTION
NAME
SETTIN
UNIT
SETTIN
RAN E
MANUFACTURER
SETTIN
1FILLING FEEDER
TIME minu es 5 - 20 11
2PELLETS IGNITION
TIME minu es 1 - 15 6
3 FAN POWER % 5 - 50 15
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Megatherm wood-pellet burner MPB serie's
(IGNITION)
4PELLETS DOSE
(IGNITION) g 50 - 500 240
5FEEDER
PERFORMANCE kg/h 5.0 – 45.0 14.0
6PELLETS FEEDING
PERIOD econd 10 - 60 20
7OVERFLOW AIR
(WORK) multiplier 0.2 - 2 0.4
8OVERFLOW AIR
(MAINTAIN) multiplier 0.2 - 2 0.4
9FLAME DETECTOR
TRESHOLD % 5 – 90 10
10 FURNACE PROTECTION
(OVERHEAT) ºC 60 - 90 80*
11 STB TEMPERATURE ºC 60 – 110 90**
12 IGNITION STABILIZATION Second 0 - 250 30
13 MAXIMUM BURNER POWER KW 30 – 250 40
14 MINIMUM BURNER POWER KW 2 – 50 9
15 MINIMUM FURNACE
TEMPERATURE ºC 20 – 60 35
16 SENSOR TYPE KTY / PT** KTY
17 EXTERNAL CONTROL - Ye / No No
18 TEMPERATURE
CALIBRATION ºC - 10.0 – 10.0 0.0
** If PT (PT 1000) sensor type is chosen then the range of " STB TEMPERATURE” is 90-250
o
C
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Megatherm wood-pellet burner MPB serie's
10. Manufacturer's menu
Activation of Manufacturer's menu
In order to activate the manufacturer's settings menu, go to the settings menu of
the driver "DRIVER SETTINGS" and sub-menu "EN BLE SERVICE MODE" and with
the help of buttons "MENU/OK" and "+" or "-" choose the code 112. Then, press
"MODE/ " and leave the sub-menu, go to the menu "M NUF CTURER SETTINGS"
* CAUTION!!
Manufacturer's settings are exclusively the suggestion. All of the values depend on the kind
of solid fuel, the sysytem, the user's requirements, etc.
The producer of the burner reserves the changes of the ranges of settings in next versions
of the driver.
Description of manufacturer's settings
E1. FEEDER FILLING TIME
In this menu the manufacturer sets the time of the feeder's filling. The time is the
protection from filling up of the burner. This time depends on the angle of arrival of the
large feeder. The parameter is set in the bracket of to 20 minutes.
Manufacturer Advise: 10-12min
E2. PELLETS IGNITION TIME
In this menu the manufacturer sets the time of the pellet's ignition. After the lapse of
time, the ignition cycle restarts. The cycle is repeated once again. Unsuccessful trials of
ignition are seen on the screen as a message: no pellets. The cause of this condition may
be also a broken or dirty flame's sensor. The time of ignition is set in the bracket of 1 to 1
minutes.
Manufacturer Advise: 6-7min
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E. MANUFACTURER
SETTINGS

Megatherm wood-pellet burner MPB serie's
E3. FAN POWER (IGNITION)
In this parameter the producer sets the power of the fan during the pellet's ignition. The
fan's power is set in the bracket of 5 to 50%.
If chimney's draught is over - 5Pa, then the parameter stays at 0%
If chimney's draught is from 0 to - 5Pa, then the parameter must change to 5-20%.
Manufacturer Advise: 10-15%
E4. PELLETS DOSE (IGNITION)
In this parameter the manufacturer sets the dose of fuel needed to ignite the burner. The
parameter is set in the bracket of 50 to 500 grams. Depending the pellet's quality the
parameter can change from 50gram to 220grams. The default value is 200grams
Manufacturer Advise: 1 0-240gr. Depends on pellet quality and on momentum the
pellet comes into the burner
E.5 FEEDER PERFORMANCE
In this parameter the manufacturer sets the performance of the feeder. The whole work of
the burner is based on this parameter. The parameter is set in the bracket of 5 to 45 kg/h
with the step of 500grams.
Manufacturer Advise: Can not be given any advise since it is depended on the
feeder's angle and pellet quality. Please follow the
procedure on paragraph 11 “First use
E6. PELLETS FEEDING PERIOD
In this parameter the manufacturer sets the period of feeding the pellet. After the lapse of
time, the driver releases the next dose of fuel. In the cycle of maintain, the parameter is
ten times multiplied. The feeding period of the pellet is set in the bracket of 0 to 60
seconds.
Manufacturer Advise: 10-20s
E7. OVERFLOW PELLETS AIR (WORK)
In this parameter the manufacturer sets the overflow of the air needed to burn the
specified amount of the pellet when the burner works at full power.. This parameter should
be increased if during the working cycle too low capacity of the fan would be noticed. The
overflow of the air is set in the bracket from 0.2 to 4.
Depending on the burner's maximum power ,pellet's quality, boiler's construction
and chimney's draught, the paramater will be set between 0.20-0.6
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Megatherm wood-pellet burner MPB serie's
E8. OVERFLOW PELLETS AIR (MAINTAIN)
In this parameter the manufacturer sets the overflow of the air needed to burn the
specified amount of the pellet during “Maintain” mode. This parameter should be increased
if during the working cycle too low capacity of the fan would be noticed. The overflow of the
air is set in the bracket from 0.2 to .
Depending pellet's q ality, boiler's constr ction and chimney's dra ght, the
“parameter will be set between 0.20-2.0
E9. FLAME DETECTION TRESHOLD
In this parameter the manufacturer sets the flame's detection threshold. Beneath the pre-
set threshold's value, the burner detects the vanishing of the flame. The parameter is set in
the bracket of 5 to 90%.
Manufacturer Advise: 10%
E10. FURNACE PROTECTION (OVERHEAT)
In this parameter, the user sets the furnace's temperature which protects from the
overheating. The protection is activated when a higher temperature than the one that was
previously set is reached and when the CH pump is turned off. The driver starts the CH
pump automatically and switches off the burner. The protection of the furnace from the
overheating is set in the bracket of 60 to 90 ºC. The furnace's protection can be activated
when:
• working of room thermostat and simultaneously surpassing the protection
temperature of the furnace,
• setting ”S mmer” function and simultaneously surpassing the protection
temperature of the furnace,
• setting the ”STOP” mode and simultaneously surpassing the protection temperature
of the furnace,
• surpassing the temperature of the heating water over 90 ºC.
Manufacturer Advise: 80-90 ºC
E11. STB TEMPERATURE
It is the temperature where the Overheating Alarm is activated. At the same time the
controller activates the CH pump and the WUW pump. For water boiler the default value is
90
o
C.
If sensor type PT is chosen then, the value of this parameter can change depending the
16

Megatherm wood-pellet burner MPB serie's
application.
E12. IGNITION STABILIZATION
When ignition has occurred, the air-fan works for the time, which has been set by this
parameter. This operation drives the ignition gases out of the boiler faster.
Manufacturer Advise: 30-60sec
E13. MAXIMUM BURNER POWER
n this parameter the installer can set the maximum burner power, where the user can set
by visiting the burner's menu. This prevents the user to set the burner at a maximum
power, than the one it is required by the system.
Manufacturer Advise: 40kW
E14. MINIMUM BURNER POWER
n this parameter the installer can set the minimum burner power, where the user can set
by visiting the burner's menu. This prevents the user to set the burner at a maximum
power, than the one it is required by the system.
Manufacturer Advise: 9kW
E.1 MINIMUM FURNACE TEMPERATURE
n this parameter the manufacturer sets the minimal temperature of the furnace which can
be set by the user. The activity of the room thermostat causes the setting of the boiler into
this parameter. The minimal temperature of the boiler is set in the bracket of 20 to 60 °C.
Manufacturer Advise: 3
o
C
E16. SENSOR TYPE
n this parameter the installer can choose between KTY ant PT 1000 temperature sensors.
KTY is the default sensor which is used for measuring temperatures up to 100
o
C.
The PT 1000 sensor is given by the manufacturer under request and it is used to measure
temperature higher than 100
o
C (industrial applications).
Notice: Nani 35 is not suggested to be installed in industrial applications.
E.17 EXTERNAL CONTROL (room thermostat)
This parameter, it is activated only if room thermostat it is connected on the controller
If external control No(Manufacturer's settings):
1. When thermostat is ON, the burner works at the maximum power it is set.
17

Megatherm wood-pellet burner MPB serie's
2. When thermostat is OFF, the burner burns off
This is mostly suggested for low consumption houses (less than 3.000 g/year) or for
connecting with timer.
If external control Yes(Manufacturer's settings):
1. When thermostat is ON, the burner wor s at the maximum power it is set.
2. When thermostat is OFF, the burner goes at maintain mode and eeps a small fire.
In both cases, when the thermostat is OFF, the CH pump stops.
E.18 TEMPERATURE CALIBRATION
In this menu the manufacturer calibrates the temperature sensors. It is possible to
add a regular offset for the temperature of the furnace and the warm useful water. The
parameter is set in the brac et of -10 to +10°C.
11. Room thermostat
The room thermostat (or any external command) can be connected on the PINs 1& ,
which are located on the PCB board inside the burner's controller (blac casing)
It is forbidden to give voltage to room thermostat's connection (pin
1& ). The connection with the room thermostat must be only a “Cold
junction”
When a room thermostat is connected in the controller, we have the two following options:
If external control No(Manufacturer's settings):
1. When thermostat is ON, the burner wor s at the maximum power it is set.
2. When thermostat is OFF, the burner burns off
This is mostly suggested for low consumption houses (less than 3.000 g/year) or for
connecting with timer.
If external control Yes(Manufacturer's settings):
1. When thermostat is ON, the burner wor s at the maximum power it is set.
2. When thermostat is OFF, the burner goes at maintain mode and eeps a small fire.
In both cases, when the thermostat is OFF, the CH pump stops.
18

Megatherm wood-pellet burner MPB serie's
12. First use – adjusting the burner's fire
1. Ensure that the installation has been done according to this manual
2. Ensure that the plastic pipe is not connected to burner's feeding pipe
3. Fill the feeder up with wood-pellet, by following the direction of paragraph 16
Feeder's Filling Procedure). The filling of the feeder lasts 8-15min depended on
feeders incline.
4. Ensure that the feeder is full of pellet. Let the feeder working after the first pellets
come out of the feeder for 10-15 minutes locate a plastic bag at the exit of the
feeder)
5. Empty the plastic bag and place it back at the exit of the feeder.
6. Make the feeder work again for 2 minutes, by pressing the button
7. Weight the wood pellet which is in the bag for example 0.4kg)
8. Multiply it by 30 minutes 0.4x30 = 12kg/hr). This is the feeder's performance
9. Repeat the steps 4-8, 2-3 times until you make sure that you weight the right
quantity.
10. Place this value (i.e 12 g/hr) on manufacturer's settings menu, in the
parameter “5. Feeder Performance”
11. “CHOICE FUNCTION-/+” is written on the screen.
12. By pressing the button “MODE/ “ once, starts the automatic operation of the
burner
13. When the maximum power of the burner is reached from 10 to 35kW), then adjust
the burners flame by calibrating the air.
The burning air is calibrated just by changing the value of “Overflow pellet's
air” at Manufacturer's menu. The value must be between 0.20-0.7,
depending on the maximum burner's power, pellet quality, boilers
construction and chimney's draught.
13. Start of the burner
1. Activate the burner by connecting it with a power supply 230Volt, 50Hz)
2. It is written on the LCD screen the following
3. By pressing the button “MODE/ “ once changes the operation from “Stop” to
19
CH:---- C WUW:---- C
STOP

Megatherm wood-pellet burner MPB serie's
“ignition”. By pressing the button “MODE/ “ changes the operation from
“Ignition” to “Automatic”.
4. In “Automatic mode”, starts the operation of the burner.
5. When the photo sensors detects fire, then the burner starts its “Work” by increasing
its po er gradually to the po er it has been set (i.e 30kW)
6. When the boiler's ater temperature reaches the desired temperature “HEATING
WATER TEMPERATURE “, the the po er of the burner goes do n ta 3kW (Maintain
mode)
7. The burner orks at “Maintain mode” till the boiler's ater temperature goes do n
to the temperature:
“HEATING WATER TEMPERATURE - CH FURNACE HYSTERESIS”
14. Stop of the burner
1. The burner can be either at “Work” or “Maintain” or “standby”
2. Press the button “MODE/ “ continuously till “STOP MODE” appears on the
screen.
3. It is ritten “Burning off” till the photo sensor stops to detect fire (3-5 min)
4. When he photo sensor stops to detect fire, “cleaning procedure takes place for fe
seconds.
15. Cleaning burner's chamber
1. The burner can be either at “Work” or “Maintain” or “standby”
2. Press the button “MODE/ “ continuously till “STOP MODE” appears on the screen.
3. It is ritten “Burning off” till the photo sensor stops to detect fire (3-5 min)
4. When he photo sensor stops to detect fire, “cleaning procedure takes place for fe
seconds.
5. When “Stop” appears on the LCD screen, aiting fe minutes till the burner cools
do n.
6. Open the boilers door, clean the burners tube and close back the door.
7. By pressing the button “MODE/ “ once changes the operation from “Stop” to
20
CH:39.5 C WUW:23.6 C
IGNITION...
CH temperature WUW temperature
Burner function