HR EVO 200-250 SMART
use and maintenance manual
Pag.60
Rev.0 03/07/2019
ENG
TECHNICAL CHARACTERISTICS
The boiler works exclusively on pellets and enables easy installation with the heating and DHW system. Its automatic control systems
ensure optimum thermal efficiency and complete combustion; there are also systems to ensure safe operation for the internal
components and the user. This unit must only be used for heating water to a temperature lower than boiling point.
When correctly installed, the unit works in any outside climatic conditions; in any case, in critical conditions (strong wind, frost, etc. )
the safety systems can cut in and shut down the boiler.
The boiler comes complete with a fume extractor, pellet feed gearmotor, , high efficiency pump for the heating circuit and of all the
control and safety components. During operation the unit generates very little noise, with levels between 38 and 42 dB.
The data shown here is provided as a guideline and is not binding, and may change based on what type and quality of pellet is used.
Ravelli reserves the right to make any changes in order to improve product performance.
CHARACTERISTICS
Unit of
measurement
HR EVO 200 SMART
HR EVO 250 SMART
Boiler class (EN 303-5:2012)
5
Heating input reduced - nominal
kW
6,0 - 21,6
6,0 - 27,3
Heating output reduced - nominal
kW
5,6 - 20,0
5,6 - 25,3
Efficiency
%
92,8 - 92,5
92,8 - 92,4
Heatable volume**
m
3
480
605
Fuel consumption red. - nom
kg/h
1,29 - 4,58
1,29 - 5,80
Hopper capacity
kg
50
Autonomy red. - nom.
h
11 - 38
9 - 38
Max water working pressure
bar (MPa)
3 - ( 0,3 )
Water content
l
39
Expansion tank
l
6 (1,5 bar)
Max water temperature
°C
80
Recommended draught
Pa (mbar)
9 - 12
( 0,09 - 0,12 )
Flue temperature red.-nom.
°C
67,4 - 108,8
67,4 - 126,2
Flue mass flow rate red.-nom.
g/s
7,0 - 11,6
7,0 - 13,8
Flue socket
mm
100
Electrical consumption during ignition*
W
300
Electrical consumption during nominal
heat output*
W
98
105,8
Electrical consumption during reduced
heat output*
W
61,4
61,4
Stand-by electrical power consumption*
W
5,64
5,64
Max pump electrical consumption
W
45
45
Electrical connection
V - Hz
230V - 50Hz - 2A
∆T
Loss of load
mbar
kPa
HR EVO 200
SMART
20 K (14,3 l/min) 618
61,8
HR EVO 250
SMART
20 K (18,1 l/min) 607
60,7
Characteristics of the fuel
Wood pellet is a fuel made of pressed wood sawdust, often recovered from processing scraps of carpentries. The material used
cannot contain any extraneous substance such as, for example, glue, lacquer or synthetic substances.
The sawdust, once it has been dried and cleaned from impurities, is pressed using a die with holes: as a result of high pressure, the
sawdust heats up by activating the natural wood binders; this way the pellet maintains its shape even without adding artificial
substances.
Wood pellet density varies based on the type of wood and can exceed that of natural wood by 1.5 - 2 times.
The cylinders have a diameter of 6 mm and a variable length between 10 and 40 mm.
Their density is equal to approximately 650 kg/m3. Due to their low water content (< 10%) they have a high energy content.
The UNI EN ISO 17225-2:2014 standard (that replaces the EN PLUS standard) defines pellet quality by specifying three classes: A1,
A2 and B.
Summary of Contents for HR EVO 200 SMART
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