Boilers with feeder biomass
Alfa
Discontinued equipment
DESCRIPTION
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5 years warranty for heat exchanger tightness, 2 years for the remaining components and efficient operation of boiler; |
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Heat exchanger made of certified high-grade boiler steel; |
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High thermal efficiency reaching 95% due to increased heat recovery from flue gases; |
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APC CENTER controller servicing six pumps /central heating, domestic hot water, circulating, floor/. Control of two mixing valves; ONLINE change and preview of parameters of main controller through installed internet module with RJ-45 socket; |
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Reinforced design. Boiler adapted for installation in closed system if the protections are assembled in accordance with the operation and maintenance manual of the boiler; |
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Exhaust fan eliminating problem with chimney draught and stabilising operation of the boiler; |
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Vacuum sensor protecting against incorrect combustion process; |
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Fuel reserve sensor in container stops boiler operation at minimum fuel level. After fuel recharging it is not necessary to repeat firing procedure and the boiler switches to automatic operation; |
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Ceramic catalysts stabilising combustion process; |
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Fuel self-ignition system; |
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Central pellet burner with automatic cleaning function as a standard; |
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Compact dimensions; |
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System automatycznego czyszczenia wymiennika ciepła i odpopielania w standardzie; |
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Hydraulic set with circulating pump and thermostatic valve as boiler protection against low return temperature; |
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Specification / boiler type |
unit | 12 | 17 | 22 | 30 |
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Fuel |
wood pellet with diameter 6 mm | ||||
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Power range |
kW | 3,6-12 | 5,1-17 | 6,6-22 | 9-30 |
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Heating area |
m2 |
1,3 | 1,7 | 1,9 | 2,7 |
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Area of heated rooms 1 |
m2 |
to 150 | to 215 | to 275 | to 375 |
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Capacity of fuel container (STD/PLUS) 2 |
kg |
~82/~156 |
~82/~156 |
~116/ ~210 |
~147/ ~229 |
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Optimum thermal efficiency |
% |
~91,0-95,1 |
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Energy efficiency class |
- | A+ | A+ | A+ | A+ |
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Max. permissible work pressure |
bar | 1,5 | |||
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Required flue gas draught |
mbar | 0,22 | 0,27 | 0,27 | 0,30 |
| Water temperature on supply max. | °C | 65/85 | |||
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Boiler weight 3 |
kg | 370 | 380 | 415 | 510 |
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Boiler water tank capacity |
l | 60 | 60 | 70 | 90 |
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Chimney section |
cmxcm | 14x14 | 14x14 | 16x16 | 18x18 |
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Chimney section |
Ø mm |
160 | 160 | 180 | 200 |
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Minimum chimney height |
m |
5,5 |
6 |
6,5 |
7,5 |
| Width | mm | 1103 | 1123 | 1123 | 1352 |
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Depth |
mm |
1014 |
1029 |
1029 |
1069 |
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Height |
mm | 1340 | 1340 | 1495 | 1495 |
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Supply and return socket diameter |
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GW 1” |
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Release socket diameter |
GW ½” |
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Diameter of the exhaust gas socket |
mm | 127 | 127 | 127 | 127 |
1 Maximum area of heated rooms estimated for unit heat demand q=80 W/m2.
2 Fuel tank capacity for pellet bulk density 0,6 kg/dm3.
3 Boiler weight depends on its additional equipment.
Height of boiler can be additionally adjusted by means of provided levelling legs.
The regulation of legs varies from 38 to 50 mm.
