MAKS 4M PPB30 User manual

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]
Operation manual
© 2016 Maks 4M OOD, All rights reserved.

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]
„MAKS 4M“ OOD
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street
Bulgaria
E-mail: [e-mail]
tel.:[phone]
Technical support
[phone]
[e-mail]
We have taken all possible measures to guarantee the accuracy and completeness of the present
documentation. Since we cannot exclude the possibility for an error, we will be grateful if you share your
suggestions or any further information, which could improve this documentation.
Email: [e-mail]
We would also like to point out that the software and hardware terminology, as well as the
proprietary trademarks, used and/or mentioned in this manual, are generally copyright protected.

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]
1. Notes related to the documentation
Always keep this documentation safe!
This documentation is part of the product. For this reason, keep safe the documentation for the entire period of
operation of the product. Hand over the documentation to any subsequent user. Make sure that the documentation will be
supplemented by remarks and additional documents concerning any upgrade or modification introduced.
1.1. Documentation validity
This documentation is applicable only for the pellet burner with programmable electronic controller model:
Table 1: Variants
Item Number/Variant
Designed for
PPB50
For pellet burner 50kW
PPB30
For pellet burner 30kW
PPB20
For pellet burner 20kW
Validity of the documentation for the mentioned variants:
Unless otherwise specified, the information in this documentation is valid for the mentioned variants.
Pellet burner PPB20/3 0 /5 0 must be installed and operated in compliance with this instruction
Follow the instruction for operation of the pellet burner and the system is was integrated to!
In addition to the present instruction You must observe the requirements for operation, specified in the pellet
burner manufacturer instruction.
1.2. Copyright
This instruction, including all figures and illustrations are copyright protected. Any reproduction,
translation, as well as any electronic supplementing or photo-technical addition or backing up (such as
photo-copying) can only be done upon written permission.
1.3. Symbols
Hazard of injury
Designates high risk and hazardous situations, which if not avoided, could result in severe injury or death.
Electric shock hazard!
Designates high risk and hazardous situations, which if not avoided, could result in severe injury or death.

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]
Injury hazard!
Designates high risk and hazardous situations, which if not avoided, could result in severe injury or death.
Injury hazard!
Designates low risk and potentially hazardous situations, which if not avoided, could result in light or medium
injuries.
Property damage hazard!
Designates potentially hazardous situation, which if not avoided can lead to property damage!
Electrostatic discharge property damage hazard!
Designates potentially hazardous situation, which if not avoided can lead to property damage.
2. Important notes!
Тоз и section contains summed-up information from the general requirements and safety guidelines for each of the
following sections. We recommend that you make yourselves familiar and diligently follow the safety guidelines in order to
preserve your life and health and prevent any damage to the devices.
2.1. Legal framework
4 Modifications
Maks 4M OOD reserves its right to introduce any kind of modifications and revisions, aiming at improving the
performance and technical progress. All third party products shall be mentioned without reference to their patented rights
and thus, any presence of ones is possible.
5 Personnel qualification
All actions, related to installation, cabling and programming of PPB pellet burner must be performed by qualified
specialists with the required expertise. Such specialists must be familiar with the specifics of the device and the applicable
national standards.
6 Using PPB20/30/50 pellet burner in compliance with the applicable
provisions.
PPB pellet burner is designed for building-in and may not be used without performing the additional actions in order
to comply with the operating regional and national standards.
The pellet burner is capable of receiving and processing discrete and analogue signals, and issuing control commands
to the actuating mechanisms and transmit data to devices of higher hierarchical level within the control system.
It has been designed to integrate water heating boilers. No protection has been provided against injuries of limbs, or
ingress of dirt and water. Unless otherwise specified, usage of the burner in dusty and humid environments shall be
forbidden.

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]
7 Technical state of devices
The pellet burner comes with factory pre-configured hardware and software, which meet individual requirements.
Maks 4M OOD shall not be held liable in cases of unauthorized modification to the controller’s hardware or software, as well
as in case of its use not as intended.
Please, send your inquiries for modifications or for new hardware and software directly to the manufacturer, Maks
4M OOD.
2.2. Safety tip (precaution)
The following precautions must be taken into account during installation and operation of PPB pellet burner:
Do not operate the device, when it’s energized!
All sources of power supply to the device must be switched off and disconnected before performing any installation,
repair or correction work!
Installation of the pellet burner!
Burner installation must be done by specialized qualified personnel following all instructions and potential local
provisions in compliance with the good technical practice rules.
The location for installation and the method for connection of the burner must be carefully selected, in compliance
with all safety guidelines.
Servicing the burner must be done by an adult person that is familiar with the operation conditions. The burner may
not be used by children less than 8 years old or people with limited physical, sensory or mental capacities, or ones with
insufficient experience and knowledge, unless these are supervised or instructed concerning the safe use of the device and
understand the potential hazards. Children must not be allowed to play with this device. Unsupervised children may not
perform cleaning or servicing of the device.
Replacement of malfunctioning or defective burners!
Replacement of defective or malfunctioning devices (as a result from improper operation, or improper installation
cannot be provided.
Protect the device against substances of seeping or insulation properties!
Never attempt to modify the burner! Usage of liquid kindling is forbidden! It is absolutely forbidden to bring readily
flammable and volatile liquids into the room where the burner is operating.
Use only approved detergents for cleaning!
Use dry compressed air or ethanol soaked cloth to clean all sticky contacts.

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]
Safe distances!
Install away from flammable objects! Safe distances, which must be observed during installation of burners, stoves,
boilers and flue pipes must be minimum of 200 mm, in case there are materials with flammability class А, В, С1 nearby and
minimum of 400 mm in case there are materials with flammability class С3 nearby.
Do not allow wrong connections!
Do not allow wrong connection of inputs, outputs and power supply, as this can damage the device.
Avoid electrostatic discharge!
The controller is equipped with devices, which can be damaged by electrostatic discharges caused by
accidental touch. Please, make yourselves familiar with the requirements for safety in cases of electrostatic
discharge of the standard EN 61340-5-1/ -3.
Use of pellets!
The burner is designed to burn only wood pellets class А2 and А1 according to „BDS EN ISO 17225-2:2014
Solid biofuels. Fuel classes and specifications. Part 2: Graded wood pellets” with ash contents up to 1.5%, without
contents of chemically treated and recycled wood.

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]
3. Description of the device
Smart pellet controller (SPC) for PPB20, PPB30, PPB50 is a multi-functional electronic controller, which is integral
part of the common system for control and automation „Smart Home”. It is designed to perform flexible control of complex
systems of actuating mechanisms and devices, by means of reading and analysis of all incoming input signals following
dedicated pre-set algorithms. All necessary sensors and mechanisms are connected directly to it. The opportunity for
communication between controllers and devices from Smart Ctrl-V1 series, virtually makes it possible to take the readings
analysing and controlling of any type of systems and installations. Smart Ctrl-V1 series controller is based on processing
solution allowing installation of basic software for running algorithms within a pre-set task. The option to update the system
at any moment, allows optimization of the algorithms and addition of new functionalities.
The access to the options of the controller is provided by a display of Smart D-V1 series and a computer using
specialized software, and furthermore, over the Internet depending on the connection method selected (WI-FI or 3G) using
remote server.
Thanks to the convenient menus specially developed according to the set requirements, adjustment of all operating
parameters Smart Ctrl-V1, can easily be customised to all requirements and systems.
Electronic controller
This is a multifunctional electronic micro-processor controller, which runs algorithm for control of pellet boiler /
stove / burner. The particular application of the controller is determined by the type/version of the configuration file pre-
programmed in the memory.
The controller configuration is implemented by adjustment of the process parameters. The setting can be done using
the user-friendly menu of the display or by means of specialized software, installed on the computer.
The controller can be integrated in pellet boilers / stoves / burners, which have the following actuating mechanisms:
•Feeding auger
•Dosing auger
•Combustion air fan
•Flue gas fan
•Purge fan
•Lighter (heater) with heating capacity up to 1,5kW;
•Circulation pump, heating
•Circulation pump/three-way valve, domestic hot water
*All outputs of the controller can be pre-configured in compliance with the particular technical solution of the manufacturer,
via installation of dedicated firmware.

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]
Functionality:
The controller provides:
Preliminary purging /cleaning/ of the firebox
Control of flame put-out
Process control of burning intensity.
Visual and acoustic signalling for running the program, visualized on a bright display including text and graphics.
Option for control of external devices
Control in case of faulty fan
Control in case of broken glass or open door
Control in case of flame flashback
Automatic control of the heating capacity in ON/OFF mode and three-stage modulation, with option for limiting
the heating capacity.
Automatic dosing of the fuel quantity;
Automatic activation of feeding /external/ auger
Adjustment of the combustion air
Integrated electrical circuit breaker
User interface:
The controller comes complete with operator panels SmartD-V1 and Smart-D T, which provide easy and user-
friendly control of stove and burner operation.
The display shows a good deal of information, represented by graphic symbols and text.
-Current time – time and date
-Accumulated alarm messages or connection with computer
-Water temperature in the heat exchanger
-Pre-set temperature
-Operation mode
-Current status
The operator panel has: SmartD-V1 - four physical buttons, and SmartDТ-V1 – four on-screen buttons for switching on and off
of the device, options for navigation within the menu and modification of parameters. In order to secure the controller
against unwanted actions, some of the main functions of the controller are accessible upon pressing and prolonged holding of
some the buttons or input of access password.
Detailed information is provided in the Instruction for operation - section 4. Operator panel.

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]
3.1. Specifications:
Description
Parameters
Heating capacity
10 ~50 kW
Consumption of pellets
P1
First stage
2 kg/h
P2
Second stage
7 kg/h
P3
Third stage
10 kg/h
Required electrical power for ignition
0,4 kW
Required electrical power for burning
0,1 kW
№
Description
Parameters
1.
Power supply:
230Vac +10% 50Hz
2.
Controller input power
<3W
3.
Real-time clock
RTC clock, calendar
4.
Accumulator battery, autonomy >2 years;
3V
5.
Maximum cross-section of connecting wires
2.5mm2
6.
Additional power supply for sensors
12V DC
7.
Serial interface connection (PC)
RJ 11(4p)
8.
Serial interface connection (Display)
RJ 11(6p)
9.
Sensor inputs
TC
Flue gase sensor
TC, type K), tmax=650°C
RT
Room thermostat
NTC 10kΩ/ON/OFF, tmax=150°C
IRS
Photo-resistive cell
type QRB1
RB
Backfire sensor
KSD250V - 70°C /1 0A
B
Water jacket temperature sensor
NTC 10kOhn tmax=150°C
DHW
Domestic hot water temperature sensor
NTC 10kOhn tmax=150°C
HALL
Encoder
Hall сензор
Pressure
Differential pressure transmitter
dP = -50 to+50 Pa
LED/PHT
Pellet level sensor (IR barrier capacitive sensor);
IR-LED/PHT
10.
Actuating mechanisms outputs
FM
Reserve (motor/ON/OFF/ etc.)
230V / 300W (exp 500W)
EGF
Fan
230V / 300W (exp 500W)
EXF
Auger external
230V / 300W (exp 500W)
FEED
Dosing auger
230V / 300W (exp 500W)
PUMP
Pump heating
230V / 300W (exp 500W)
DHWP
Pump DHW
230V / 300W (exp 500W)
CLE
Fan purging
230V / 300W (exp 500W)
ING
Heater
230V, max 1500W
* All outputs of the controller can be pre-configured in compliance with the particular technical solution by means of
installation of specialized firmware.

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]
3.2. Wiring diagram:
3.3. Options:
№
Description
1.
Operator panel
HMI/V1
2.
Sensor panel
Be150302
3.
Software
SPC/W/A/B
4.
Wi-Fi module
wi-fi
5.
GSM module
3G
6.
Communication cable to the USB port
USB Com
7.
Remote access
Data Server
8.
Mobile version
SPC/App
* connection of several simultaneously operating operator or sensor panels is possible.
** a wi-fi or 3G module to be installed at the operator panel is required for the connection to the Data Server.
*** only one wi-fi or 3G module can be integrated into one operator panel (sensor panel).

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]
4. Dimensions of the burner.

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]
5. Schematic diagram.
1. Control panel
2. Pellets input
3. Connection flange with sealing
4. Firebox with heater and grate
5. Body of the burner
6. Fuses
7. Outlets for power supply and control of
peripheral devices
8. Main power supply
9. Feeding auger
10. Auger pipe
11. Gear motor
12. Auger power supply cable
13. Temperature resistant hose
14. Stand

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]
6. Installation instruction.
6.1. Connection to the pellet hopper:
The pellets are stored in a hopper, where the auger pipe is inserted at an angle of approx. 45 degrees. In case the
pipe was installed under greater angle, there is a possibility that the auger will be blocked as a result from the hindered
movement of pellets. If this happens, resuming work must be done after all blocking pellets have manually been removed from
the pipe.
The auger takes pellets from the hopper, doses them and feeds them into the firebox. The liquid circulating in the
heating system is heated as a result from the burning done in the firebox. The combustion gases are taken into the atmosphere
via the chimney. The operation of the pellet burner is controlled by the multifunctional electronic controller.
6.2. Connection to the boiler: The burner is designed to work with a heating appliance, in the firebox of which negative
pressure /chimney draught/ of at least 20 Ра must be maintained.
The boiler is to be installed in such a way as to provide sufficient space for cleaning, elimination of soot and ash from
the burner, the firebox and the flue gas pipes. The burner is installed in the opening of the firebox door and includes the
respective gasket. It is fitted with bolts and nuts. The connection between the burner and the boiler must be well sealed to
prevent any combustion gas leakage into the room. During installation the burner must be in horizontal position. The pellet
feeding hose must be straightened and all connections must be tight.
6.3. Connection to the electrical mains: Once the burner is fitted to the boiler, the technician must connect it to the
control device and then, connect it to the electrical mains.
This connection must be performed by licensed electrician, paying special attention to the protective earthing of the
device.
Power (230V). Caution! High voltage!
POWER – Mains power supply – 220V ±10%. Take all necessary measures to keep the position of the live wire (L);
If the power supply cable of the burner is damaged, it can only be replaced by a qualified person.
6.4. Connection of external devices to the controller:Connection of external devices is to be done using screw
block terminals. The maximum cross-section of the conductor is 2.5mm2. For clarity during connection and for prevention of
wrongful connection, all inputs are on the left side of the controller, and all outputs – on the right one. The specialized
external devices – display, personal computer, sensor for speed of rotation are to be connected to individual terminals, which
will prevent wrongful connection.
Description of inputs and outputs
Power (230V). Caution! High voltage!
CLE – Purge fan. Power supply of high-pressure auxiliary fan for purging the burner/the stove;
DHWP – Domestic hot water pump/three-way valve. Power supply of the re-circulation pump or three-way valve
of the circuit for preparation of domestic hot water;
PUMP – Circulation pump. Power supply of the circulation pump of the main heating circuit;
EXF – External feeding auger. Power supply of external discharging auger for pellets.
FM – Reserve;
Operation:
TC – Thermocouple type „K“, for measurement of flue gas temperature.
RT – Room thermostat, Normally open contact or NTC 10K temperature sensor.
B– Sensor for temperature of the working fluid (the water), NTC 10K for measurement of temperature of the
water in the water jacket of the stove/the boiler.
DWH – Domestic hot water temperature sensor. NTC 10K for measurement of temperature of the water in the
water tank for domestic hot water.
Pressure – Sensor for discharge/pressure. High sensitivity differential pressure transmitter. When measuring
vacuum – connect the flexible hose of the left stub pipe.
PC – Communication port for connection with computer. Use communication cable USB Com.
OP – Operator panel. Port for connection to the operator panel.

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]
6.4. Connection of the pellet feeding auger:Position the auger conveyor so that loading it with pellets from the
hopper will be unobstructed.
The auger conveyor is supplied with power using plug connector. Its initial filling is performed automatically, along
with starting-up of the burner.
The working condition of the auger power supply cable is connected through its plug to the dedicated socket in the body of the
burner, and it is being controlled following a pre-defined algorithm.
6.4. Connection of room thermostat: If a room thermostatic controller is connected to the burner, it must be verified
whether its pre-set temperature is not less than the one of the room it was installed. Where room thermostat is missing – install
a bridging connection!
7. Operator display.
The operator display is used for visualization and adjustment of the parameters of the pellet controller. It has four
control buttons.
•The „Enter“ (Start/Stop) button has double functionality:
- Prolonged pressing and holding - pressing and holding for more than 3sec. starts up or stops the stove.
- Single pressing – confirms the selected function or value when working with the menu.
•When pressing the „BACK“ button in the main screen, it loads the menu of the controller, and when working
within the menu structure, it takes you one level up without confirmation.
•The buttons „ ↑↓ “ move the cursor along the icons of the menu and set values of the parameters.
Main screen:
Using buttons „ ↑↓ “ at the „Main screen“ level you can change the pre-set temperature of the water in the heating
system.
8. Operation modes:
The user s provided with option for selection between four operation modes:
- Heating;
- Heating along with production of domestic hot water
- Heating and priority production of domestic hot water
- Summer mode – production of domestic hot water
* The option „Solar controller“ (differential thermostat) /optional/ can be activated for each of the modes.
The controller controls the stove/the boiler in compliance with the operation mode selected by the user and the
need of heat supply. It provides automatic control of the heating capacity.
Sequence of processes:

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]
Standby
The burner is ready for work.
No command for working has been issued.
Required conditions to move to the next mode:
* Command for starting of the burner: Pressing and holding the button Start for
more than 3 sec.
*In Heating mode – the room thermostat (RT) circuit must be closed
* In case Heating mode is selected – the water temperature in the system must be
lower than (the pre-set one – the hysteresis ),
* In case a mode with DHW production has been selected – the temperature in the
water tank must be lower than (the pre-set one - the hysteresis )
Ignition of the burner.
When holding the button Start/Stop for more than 3sec., automatic operation is
started.
* the fan comes on at maximum capacity, to clean the stove for a time, pre-set by
a parameter;
* simultaneously, an external auger for initial filling (if one is connected) is
switched on and the pellet level sensor reads lack of pellets in the pipe of the
burner.
* After expiry of the programmed time, the heater comes on;
Ignition
In ignition mode:
*Maximum time for the ignition cycle (parameter) is loaded;
* Fan capacity is reduced to the value, pre-set by a parameter.
*Dosing auger is started for the initial filling with pellets of the firebox (time is pre-
set by a parameter)
Required conditions to move to the next mode:
*Photosensor reads presence of burning fire (pre-set by parameter). Successful
ignition. Heater is switched off. The mode is changed to <Burning up>;
*Expiry of the time for ignition – unsuccessful ignition. Starting Repeated ignition
mode with reduced quantity of pellets.
*After a number of unsuccessful ignitions (pre-set by parameter), it switches off the
heater and the mode is changed to <Cleaning>
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Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]
Burning up
Transitory mode to establish stable burning process.
*Loads time for this mode (parameter)
*Fan capacity fan is set by a parameter;
*Up and down time of the feeding auger is pre-set by parameter;
Required conditions to move to the next mode:
*expiry of the pre-set time
*Monitors the parameters of the photosensor. When values fall below emergency
threshold „Extinguished flame“, the stove goes to <Cleaning> mode
*Monitors the temperature of the water in the system. When values exceed a
threshold (parameter), the circulation pump is switched on.
*Monitors the readings at the input of fan speed. When value falls below 100 rpm
it triggers an alarm.
Mode <Modulation> Three-stage control of the burner’s heating capacity
(Р1,Р2,Р3) and mode (Smoldering combustion) when the burner is maintained in a
state of readiness for modulation, if required. Smoldering combustion is a mode,
which is to be pre-set by time, and if after the expiry of the „smoldering
combustion“time, no request for modulation is sent, the burner goes into a
„Stopping“ mode. The controller determines the heating capacity of the stove
depending on the temperature difference between the pre-set and the current
temperature of the water in the system.
For every stage of modulation there are parameters, which provide for quality
combustion process with the different intensities of combustion – or generation of
different heating capacity, respectively.
* The fan capacity is pre-set by parameter for each stage of modulation;
Up and down time of the feeding auger is pre-set by parameter for each stage of
modulation;
* Monitors the parameters of the photosensor. When values fall below emergency
threshold „Extinguished flame“, the stove goes to <Cleaning> mode
*Monitors temperature of the water in the system. When values exceed a threshold
(parameter) it switches on the circulation pump.
*Monitors the readings at the input of fan speed. When value falls below 100 rpm
it triggers an alarm.
*When the burner has stopped but has passed the „Smoldering combustion“
mode, it monitors the water temperature in the system. When it falls below the
pre-set value of the hysteresis, the burner is re-started (ECO Mode)
Mode <Stopping>: controlled extinguishing of the burner.
*the fan and the feeding auger work with the same parameters as in mode of
modulation P1;
There are three options to go into <Stopping> mode:
-Press and hold button Start/Stop for 3 sec.
-ECO mode – the pre-set temperature has been reached – the burner stops
and starts again only when the water temperature falls below (the pre-
set temperature - hysteresis)
-Emergency stopping caused by an event, which results in triggering an
alarm.
Required condition to move to the next mode:
*The photosensor readings fall below a threshold, set by a parameter.
<Cleaning>Mode It is activated with the expiry of the pre-set time for cleaning
of each of the modulation stages. Cleaning is also activated once <Stopping>mode
is complete – or in case of an emergency.
*Fan operates at its full capacity until the pre-set time for this mode expires.
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P1
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Модулация
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STOP
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60 sec

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]
9. Main menu structure

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]

Operation manual MODEL PPB30
MAKS 4M OOD E-mail: [e-mail]
5100 Gorna Oryahovitsa, 4А Ivan Momchilov Street tel.:[phone]