Pellet monoblock boiler 20 kW FOCUS, power range (5-25 kW)

Automatic monoblock pellet boiler 20 kW FOCUS 

Modern, economical heating boiler according to the principle of a single installation. A single device where we have collected for you everything you need to organize a complete heating system for a private house or workshop, a small establishment or office. In our monoblock, we have included all the elements of a single solution. A bunker for storing pellets, automatic feeding and ignition, a control and monitoring system, internet control, a weather algorithm (the boiler itself will prepare the temperature of the coolant according to the weather outside the window), a built-in mixing unit based on an automatic 4-way valve - to adjust the temperature, whether it be batteries, air convector or underfloor heating systems, branch pipes for connecting a hot water supply system. By purchasing one product once, there is no need to take care of additional automation, mixers, settings and control. The service engineer performs the connection in one cycle and puts into operation the entire heating system that works for your facility (batteries, underfloor heating or air heating).

Pellet monoblock boiler TM "FOCUS" specially designed for the domestic segment and small business premises, small industries and workshops up to 200m2 (due to maximum power and insulated objects, the maximum effective heated area can be increased to 300m2), observing the principle of operation in automatic mode. Emphasis in the development and production of the boiler is made on the efficiency of heat removal precisely at the operation of the complex, which is based on a flare pellet burner working except for clean wood pellets and on ash (agro) pellets, having the function of self-cleaning of the grate and automatic ignition with flame control by its glow, automation literally sees the flame and maintains it on its own. This combination is the basis for the economic feasibility of purchasing and simple operation of equipment using commercially available fuel pellets.

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The main advantages of pellet boilers FOCUS:

• built-in Internet monitoring and boiler control system, saves all information about the operation of the boiler, temperatures. Facilitates setup, helps in operation and resolving issues when contacting the service department, globally reduces false visits of the master (often just advice is enough). Remote start and stop, remote temperature control, with installed room panels - room temperature control.
• touch, intuitive control panel, friendly settings interface.
• convenient cleaning of the pellet burner, a movable grate discharges ash on its own, an optical sensor controls the actual presence of a flame, automatic pellet supply, smooth adjustment of the desired temperature and, accordingly, power, controls fuel consumption.
• well-developed convective part of the heat exchanger in combination with a highly efficient horizontal heat exchanger;
• hybrid heat exchanger (originally plate heat exchanger, working for heat extraction and in as an ash filter, and tubular), which allows you to effectively remove the infrared radiation of the burner torch;
• large ash pan size (maximum possible) especially for high ash fuel operation;
• the presence of a section of the structure (plate heat exchanger) to relieve the primary thermal stress of the flame. At the same time, the point effect of the torch on the structure of the heat exchanger is excluded. It is used to sediment heavy particles of the volatile component of the torch;
• convenient maintenance of the heat exchanger with thoughtful access through a wide hatch, horizontal cleaning, ash chamber in front of the chimney;
• the high-capacity ash pan is designed to work with boilers of the industrial series. When purchasing a complete set of equipment, FOCUS freely operates on high-ash pellets without typical operating problems for foreign boilers designed for certified pellets.
• built-in hopper 130 liters (~70kg pellets), greatly simplifies the location and connection of the boiler in small rooms of private housing stock.
• the absence of condensation in the boiler is also guaranteed. This, in turn, on 30% increases the efficiency of the boiler compared to the configuration without “return” protection and on a cold system (when the system return is below 20-30 * C). As a result, there is no need to select mixing equipment with and synchronize it with the boiler automation.
• DHW threaded connections (requires optional DHW temperature sensor) where a heat exchanger or indirect boiler can be connected.

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Boiler design features:

• Boiler material - structural steel 09G2S:
  • wall thickness of the heat exchange part (firebox and primary heat exchanger, wells) - 6mm;
  • thickness of the outer shell of the boiler water jacket - 4mm.
  • surface area of the heat exchange part (surfaces + fire tube heat exchanger) - 2.2 m2
• Thermal insulation - 50mm thick basalt mineral wool.
• Boiler casing - brushed stainless steel AISI201.
• The only sectional door on which the pellet burner is located provides access not only for servicing the burner itself, but also for servicing the heat exchanger and general inspection.
• Adjustable hinges and locks to fine-tune the tight fit of the door to the opening.
• Possibility of changing the side of the door opening.
• Hybrid plate and fire tube heat exchanger.
• Large ash pan designed for several days of continuous operation at medium and above average power.
• A built-in hopper with a top hinged lid on pneumatic shock absorbers - convenient loading, a capacity of 70 kg pellets for working at least a day at maximum power.

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 Features of the operation of the complex based on pellet burner FOCUS

The built-in pellet burner TM "FOCUS", included in this set of equipment, will work both on clean wood pellets and on agricultural pellets with an ash content of up to 10%. In this case, fuel pellets from sunflower waste, corn, buckwheat, rice, furniture waste and straw can be used without restrictions.

Pellet monoblock boiler FOCUS 20 is the optimal solution for households and small shops, as well as remote sites.

Advantages of the built-in burner:

• automatic ignition (installed Japanese ceramic candles for contactless air ignition of pellets);
• movable mono-grate. It is used for tedding burning fuel, followed by pushing the high-ash residue into the boiler ash pan;
• auger for supplying fuel to the combustion chamber of the burner;
• built-in temperature sensor of the burner auger (safety, automation will turn off the fuel supply with the transmission of an alarm signal);
• built-in infrared flame sensor for fixing and monitoring the level of flame radiation (safety, automation records the presence and absence of a flame, using appropriate behavioral scenarios);
• selected proportions of primary and secondary air for the correct organization of fuel combustion;
• highly reliable drive of the Swiss company "Belimo" with anti-jamming protection - moves the grate;
• The combustion chamber nozzle with air purge (for models 100-150kW) performs the functions of cooling the nozzle and simultaneous heating of the secondary air. Increases the efficiency of heat generation by the burner, due to the afterburning of gases at the exit from the nozzle;
• nozzle and grate are made of stainless steel.

All models of flare burners have a "break" in the fuel supply line, ensuring the safe operation of the equipment. Using the controller, you can easily customize the operation of the equipment.

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Functions and equipment

Functionality of the pellet boiler FOCUS 20 (5-25 kW):

• power regulation within 5 kW - 25 kW;
• heat exchanger surface area 2.2m2
• 5 basic security levels;
• automatic operation: ignition, extinguishing, cleaning;
• ceramic lighter;
• low power consumption (excluding auto ignition - 40W) - can be powered by a battery and a solar panel;
• PID-regulation (the possibility of precise control of the burner using an analog control signal, including within the framework of "smart home" technology);
• movable grate for mechanical cleaning of the burner;
• pump control (hot water treatment and heating);
• work with room thermostat and internet module
• work with weather regulation.
• built-in Internet connection module with connected access to the manufacturer's server (statistics and access to settings are stored).

Pellet boiler FOCUS 20 complies with GOST32452-2013 (EN 15270:2007). A 12 month warranty is provided.

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Contents of delivery:

• Solid fuel boiler FOCUS 20 kW in combination with a built-in burner;
• Built-in 4-way mixing unit with a temperature sensor for the heating system;
• Weather sensor;
• Temperature sensor smoke gases;
• Hot water temperature sensor;
• Internet module EcoNet
• Built-in screw conveyor;
• Corrugated PVC pipe - 1 m;
• pellet boiler controller;
• Documentation.

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Equipment for pellet boiler rooms

Devices and modules that increase the level of autonomy of the heating system:

• room touch EcoSter regulator;
• additional temperature sensors.

Consult our specialists on the features of the deployment of heating circuits and connections.

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Chimney outlet diameter

159 mm.

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Requirements for the boiler room

When designing, you must adhere to the requirements:

• MDNAOP 0.001.26-96;
• DBN B.2.5-XX: 20XX;
• SNiP 2.04.05-91 "Heating, ventilation and air conditioning";
• SNiP II-35-76 "Boiler plants".

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Interesting to read

Pellet burner operation process in detail

Which solid fuel boiler to buy for production

How does the design of the pellet hopper affect efficiency?

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