Boilers with feeder for coal

AKM Duo

AKM DUO boilers are equipped with two independent furnaces: automatic supplied by side piston feeder, allowing combustion of qualified fines and eco pea coal, and traditional, created by fixed grate cooled with water. Water tubes of grate not only allow combustion of fuels such as wood or coal, but also are additional surface of heat transfer. Heat exchanger of boilers is made of boiler steel of thickness 6-10 mm. In automatic operation mode the specified amount of fuel is cyclically supplied to the furnace grate and fan is forcing air necessary for combustion process. Part of air supplied by the fan is directed to the fuel container. Forced draught dries fuel, prevents its suspension in the container and ensured additional aeration, protecting container and fuel feeder against accelerated use and improves boiler operation parameters. The newest generation of controller is used for control of the correct run of combustion process. This controller is equipped with touch display servicing 4 pumps. Boiler control can be developed with modules controlling mixing valves, room controller and modules controlling boiler through the Internet and GSM.

5 lat gwarancji na szczelność wymiennika ciepła, 2 lata na pozostałe elementy i sprawne działanie kotła 5 years of warranty for heat exchanger tightness, 2 years for the remaining components and efficient operation of boiler
wymiennik ciepła wykonany z atestowanej stali kotłowej /gat. P265GH/ o grubości 5 mm z hut Arcelor Mittal Poland S.A. oddział Kraków oraz U. S. Steel Košice s.r.o; heat exchanger made of certified boiler steel /grade P265GH/ of 6-10 mm thickness from steel mills of Arcelor Mittal Poland S.A.
sterownik K2 z kolorowym panelem dotykowym obsługującym 4 pompy /c.o., c.w.u., obiegowa, podłogowa/. Możliwość obsługi zaworu mieszającego, sterowanie poprzez GSM lub Internet*, regulowany kąt położenia panelu sterującego controller K2 with colour touch panel servicing 4 pumps /central heating, hot utility water, circulation, floor pump/. Possibility to operate mixing valves, control using GSM or INTERNET*; adjustable angle of control panel
wysoka sprawność cieplna sięgająca 87% dzięki zwiększonemu odzyskowi ciepła ze spalin high thermal efficiency reaching 87% thanks to increased heat recovery from flue gases
 stabilna i cicha praca dzięki mimośrodowemu mechanizmowi przeniesienia napędu i pełnemu łożyskowaniu elementu podającego paliwo
stable and quiet operation thanks to eccentric power transmission mechanism and bearing of fuel feeding component;
 duża komora paleniskowa z podajnikiem tłokowym wzmocniona szuflada podająca paliwo
large furnace chamber with piston feeder reinforced drawer feeding the fuel
dwie komory spalania: dolna z palnikiem automatycznym, górna do spalania drewna /przy załadunku ręcznym two combustion chambers: bottom with automatic burner, upper for wood combustion /for manual charging/

(*) - extra payable equipment, installed on Customer’s request

DEFRO company reserves the right to introduce without any notice changes in technical parameters, equipment and specification of offered products. Information included on this page are not assurance within the meaning of art. 4 par 3 and 4 of the Act of 27 July 2002 on special conditions of consumer sales and change of Civil Code (hereinafter “Act”) and are not description of the product within the meaning of art. 4 par. 2 of the Act. This page is not an offer within the meaning of the art. 66 of the Civil Code.

Specification / boiler type Unit 16 19 24 30
Power range kW 4,8-16 5,7-19 7,2-24 9,0-30
Heating area m2 2,2 2,5 3,0 3,3
Area of heated
rooms*
m2 to 220
to 250 to 300 to 340
Capacity of fuel container** kg ~160 ~160 ~165 ~165
Optimum thermal efficiency % ~87-88
Max. permissible operation
pressure
bar 1,5
Required flue gas draught Pa 24 26 28 30
Water supply temperature
max.
°C 65/80
Boiler weight ****
kg 478 520 580 656
Boiler water tank capacity l 72 77 100 107
Chimney section cmxcm 14x14 14x14 15x15 16x16
Chimney section Ø mm 160 160 170 180
Minimum chimney height m 7 8 8 9
Width mm 1322 1372 1372 1422
Depth mm 928
928 1028
1028
Height***
mm
1542
1542 1552
1552
Diameter of supply and return Dn mm
G1 ½”
Flue size mm
159
159
178
194
Supply V/Hz
~230/50   
Maximum power consumption W
224
224
273
273
Height to bottom edge
of flue
mm  1178
1178
 1179  1157
Dimensions of substitute combustion
chamber and charging hole
width 308
358
358
408
  depth
370
370
470 470
  height 240
240 240
240
  width x height
308 x 189
308 x 189
358 x 189
408 x 189

* Maximum area of heated rooms estimated for unit heat demand q=80 W/m2.
** Fuel tank capacity for charging density 0.8 kg/dm3
*** Height of boiler can be additionally adjusted by means of provided levelling legs. Legs regulation varies from 38 to 50 mm.
**** Boiler weight depends on the equipment.

 

DEFRO company reserves the right to introduce without any notice changes in technical parameters, equipment and specification of offered products. Information included on this page are not assurance within the meaning of art. 4 par 3 and 4 of the Act of 27 July 2002 on special conditions of consumer sales and change of Civil Code (hereinafter “Act”) and are not description of the product within the meaning of art. 4 par. 2 of the Act. This page is not an offer within the meaning of the art. 66 of the Civil Code.

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