TECHNICAL FEATURES
9
Chapter 2
TECHNICAL FEATURES
Features
Unit of
Measurement
Value
Boiler class / 3
Introduced global heat output kW 33.0
Max. useful heat output kW 29.6
Min. useful heat output kW 9.3
Yield % > 89
Hourly fuel consumption kg/h 2.1 - 6.9
Flue gas temperature at max. useful heat output °C ~ 180
Flue gas temperature at min. useful heat output °C ~ 80
Flue gas ow rate at max. useful heat output kg/s 0.018
Flue gas ow rate at min. useful heat output kg/s 0.007
Chimney depression Pa 11
Maximum hydraulic pressure MPa 0,3
Water side head loss (17°C)
kPa 1.57 (1200 l/h)
kPa 5.54 (2500 l/h)
Water temperature adjustment °C 65 - 80
Water return to boiler minimum temperature* °C 55
Boiler external dimensions mm (HxLxP) 1438 x 696 x 847
Pellet tank external dimensions mm (HxLxP) 1351 x 618 x 720
Boiler with pellet tank external dimensions mm (HxLxP) 1438 x 1320 x 847
Loading hatch dimensions mm 580 x 660
Empty boiler weight kg 415
Empty pellet tank weight kg 100
Boiler water volume l 65
Pellet tank capacity l - kg 260 - 180
Smoke exhaust diameter mm 130
Maximum electric power absorbed in the pellet ignition phase W 800
Thermal safety valve features (water)
°C < 20
MPa > 0,15
The boilers are managed by a circuit board with microprocessor with a lambda probe that corrects boiler
functioning anomalies by means of constant analysis of the exhaust gases.
The data obtained from the combustion tests have been realised using the following fuels:
ONORM M7 135 DIN PLUS Pellets.
* Realise a suitable anti-condensate circuit in a way to guarantee a minimum water temperature returning
to the boiler that is equal tot he value indicated (see “SAFETY DEVICES” chapter”).
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