KSW Alfa Plus

 

A conventional model with modern electronics

The boiler is equipped by the factory with a LOGIC system controller 1. It controls the operation of pumps and a forced draught (FD) fan 2. This boiler performs well in complex installations with central heating and ahot water pump and (thanks to its high capacity) in buildings with a higher heat demand. 

 



Relatively easy to operate

The body, housing and additional equipment for this boiler were selected in order to simplify its operation. The built-in controller accelerates the boiler firing-up process. The enlarged firing door 3 is slightly tilted up - wards thus facilitating fuel charging. Fast ash removal from the grate 4 is supported by a handy lever located at the side of the boiler  5. We also made changes to the boiler design itself. They cannot be observed with the naked eye, but the effect of extended flue gas circulation 6 can be seen when observing the boiler’s slow burning capability of up to 18 hours and lower fuel combustion.

 

 

Details that limit heat losses

As one of the few boiler producers we equip all our products with adjustable doors. If the firing door loses air-tightness due to frequent operation, then it can be adjusted horizontally, recovering the air tightness.

Warranty of robustness

The Alfa Plus boiler is based on a robust design. Its proven design and careful manufacturing process ensure many years of fuel-efficient operation. This model is covered by the following warranty terms: 2-year warranty for subassemblies, 6-year warranty for heat exchanger tightness and 10-warranty for weld density.

 

 

 

Technical data

PARAMETER TYPE
9 12 16 18 20 24
    Dimensions   D [mm] 127 159
  E [mm] 248 × 173 298 × 198
  L [mm] 400 425  495 525 
  L1 [mm]  110
  L2 [mm]   255
  H [mm] 1080  1115   1200  1205 1265 
  H1 [mm] 915  910  990 975  1035 
  H2 [mm] 210  235 
  S [mm]  370 390   440
  S1 [mm]  65
    Basic fuel Hard coal 
    Heating power* [kW] 9 12 16  18 20 24
    Area of heated rooms** [m²] 90 120  150 180   200  240
    Cubature of heated rooms [m³] 225 300 375   450  500  600
    Efficiency [%] ~80
    Range of power regulation [%] ±2
    Capacity of combustion chamber [dm³] 20 27  33  35.5 45   53
    Water capacity of boiler [dm³] 28 38  52  55  70  75
    Heat exchanger material P265GH [PN-EN 10028] steel; 6 mm
    Maximum working pressure [bar] 1.5
    Requested minimum chimney draught*** [Pa] 20 23 25 
    Water temperature min./max. [°C] 57/95 
    Power supply / Power [V/W] 230/85
    Boiler weight without water [kg] 148 181 202 214 248 253
    Water tubular diameter [cal] G 1 1/2

 

PARAMETER TYPE
30 35 40 50
    Dimensions   D [mm] 178 219
  E [mm] 348 × 248
  L [mm] 595 675
  L1 [mm]  110
  L2 [mm]   255
  H [mm] 1335 1445 1635 1685
  H1 [mm] 1105 1205 1405 1435
  H2 [mm] 235 
  S [mm] 550 660
  S1 [mm]  65
    Basic fuel Hard coal 
    Heating power* [kW] 30 35 40 50
    Area of heated rooms** [m²] 290 350 400 500
    Cubature of heated rooms [m³] 725 875 1000 1250
    Efficiency [%] ~80
    Range of power regulation [%] ±2
    Capacity of combustion chamber [dm³] 80 110 150 210
    Water capacity of boiler [dm³] 96 102  110 130
    Heat exchanger material P265GH [PN-EN 10028] steel; 6 mm
    Maximum working pressure [bar] 1.5
    Requested minimum chimney draught*** [Pa] 28 35
    Water temperature min./max. [°C] 57/95 
    Power supply / Power [V/W] 230/85
    Boiler weight without water [kg] 320 352 382 520
    Water tubular diameter [cal] G 1 1/2

 

*Maximal water temperature in the boiler – 95°C;
**For rooms of the height of up to 2.5 m;
***PN-EN 12809, PN-EN 303-5:2002;

 

 

 












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