MAXPELL

Three-pass boiler with automatic chute-type fuel feed
that runs on pellets, with an additional cast iron grate.

 

The design of the boiler is based on a high-efficiency, firetube, three-pass heat exchanger. The boiler features a new-generation burner(-s) for automatic combustion of pellets.

A roomy firebox allows good combustion of the fuel and reduction in the carbon content in flue gas.

Owing to easy access to each element of the boiler it can be easily cleaned and serviced. The system of locks and hinges used in the boiler design improves its gas tightness providing improved boiler efficiency and extending the life of the boiler door seals.

The boiler automatic control system is designed to work with an automatic power regulation system functioning together with a lambda sensor*, and to fully operate a heating system. It has the ability to operate an advanced heating system by weather control using a mixing valve, as well as a domestic hot water system. It operates the burner smoothly thus allowing the boiler to adjust automatically to the demand for heat. The boiler features a high-tech pellet burner with an internal, screw-type fuel feeder. The screw ends with a scraper finger which scrapes cinder produced while burning poor low-quality fuel. The burner has an igniter and a photovoltaic cell for flame monitoring.

In addition to controlling the burner, the automatic control system allows weather control of the advanced heating system, using a mixing valve. It also controls the domestic hot water system. It operates the burner smoothly thus allowing the boiler to adjust automatically to the demand for heat.

If needed, the boiler can be equipped with a fuel tank or tanks of various capacities, or in complete fuel-feed systems for feeding fuel from silos. In the standard version, the boiler can be equipped with a fuel tank of approximately 1 m³ capacity*.

Owing to the use of the igniter and the large fuel container, the boiler can compete with oil- and gas-fired boilers as regards trouble free operation. The boiler control system can run the whole heating system of a facility.


Fuel used

 

 Controller

 

The controller is a modern electronic device designed to handling the work of the pellet boiler using help of optical flame brightness sensor. The device is compactly build, easy to install.

It can control the work of central heating and hot water circuits and also control the work of 5 mixing heating circuits. The required temperature of heating circuits can be set on the basis of data obtained from the main sensor.

The possibility of cooperation with room thermostats, separate for each heating circuit is beneficial for maintaining comfortable temperature in heating rooms.
 
   


 

Basic dimensions and technical data

 

Rated power [kW] 80 100 120 150 200
    Power range [kW] 25-80 30-100 35-120 45-150 60-200
    Max. operating temp. [°C]  85 85 85 85 85
     Water capacity [L] 250 370 490 610 920
     System connection [”] 2 1/2 2 1/2 2 1/2 3 3
     Smokestack connection  [mm] 200 200 200 250 250
     Mass of the boiler [kg]  900 1050 1350 1500 2000
    Storage container capacity [m³]
1 1 1 1 1
    Width of the boiler [cm] 84 84 84 108 108
    Depth of the body [cm]  122 147 172 191 221
    Height of the body [cm]  149 149 149 189 189
    Height to centre of smokestack [cm]  122 122 122 160 160
    Height of return nozzle [cm]  30,5 30,5 30,5 35 35
Rated power [kW] 250 300 450 550 630
    Power range [kW] 75-250 90-300 135-450 165-550 185-630
    Max. operating temp. [°C] 85 85 85 85 85
     Water capacity [L] 1040 1160 1730 2130 2600
     System connection [”] 3 3 Dn100 Dn100 Dn100
     Smokestack connection  [mm] 300 300 400 400 400
     Mass of the boiler [kg] 2200 2400 3000 3500 4000
    Storage container capacity [m³]
1 1 1 1 1
    Width of the boiler [cm] 108 108 147 147 147
    Depth of the body [cm] 232 262 265 295 325
    Height of the body [cm] 209 209 216 216 216
    Height to centre of smokestack [cm] 178 178 186 186 186
    Height of return nozzle [cm] 35  35 35 35 35

Dimensions












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