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Ravelli 500 Manual

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Pag.17
EN
3.1 Responsibility
Ravelli declines all responsibility, both civil and criminal, with the
delivery of this manual, for any accidents deriving from partial or total
failure to observe the instructions it contains,
Ravelli declines all responsibility deriving from the improper use
of the stove, from its incorrect use by the user, by unauthorized
modifications and/or repairs or from the use of spare parts which
are not original.
The manufacturer declines all direct civil or criminal responsibility due to:
•
poor maintenance
•
failure to observe the instructions in the manual
•
use not compliant with the safety instructions
•
installation that is not compliant with the regulations in force in the
country.
•
installation by personnel who are not qualified or authorized
•
modifications and repairs that are not authorized by the manufacturer
•
use of spare parts that are not original
•
exceptional events
3.2 Spare parts
Use original spare parts only. Do not wait for the components to be
worn before replacing them. Replace a worn component before it is
completely broken to prevent any accidents caused by the sudden
breakage of components, perform the periodic maintenance checks
as described in the dedicated chapter.
3.3. The ceramic tile finishes (if any)
The cast majolica stoves with a special hand finish may cause
surface imperfections such as shadowing and details that make every
majolica one of its kind. As it is a delicate material, please handle with
care whilst cleaning and avoid blows as sudden breakage may occur.
Please also take care when loading the hopper (Ed.’s note; tank containing
the pellets) with the sack of pellets: do not place it on the stove!
3.4. What are the wood pellets
The wood pellets are made from sawdust and wood shavings produced
in joiners’ shops. The material used cannot contain any foreign
substance such as glue, varnish or synthetic substances.
Subjecting it to high pressure, the wood is pressed through a plate with
holes and due to the high pressure the sawdust is heated activating
the natural binders of the wood. Thus, the pellets keep their shape
even without the addition of bonding substances. The density of the
wood pellet varies according to the type of wood and can be 1.5 –
twice greater than that of natural wood. The diameter of the cylindrical
rods is 6-10 mm and their length can vary between 10 and 50 mm.
Their weight is equal to about 650 kg/m. Due to the low content of
water (8-10%) they have a high energy content.
The standards DIN 51731 define the quality of the pellets:
Length: 10-30 mm approx. Residual humidity: 6-12% approx.
Diameter: 6 – 10 mm approx. Ashes: <1.5%
Real weight: 650 kg/m
3
approx. Specific weight: >1.0 kg/dm
3
Calorific power: 4.9 kWh/kg approx.
Do not put the
bag of pellets on
the ceramic parts
during the loading
operations.
The pellets must be transported and stored in a dry place. They swell
on contact with damp, and cannot be used, They must always be
protected from the damp both during transport and in storage.
Ravelli recommends using a pellet with a diameter of 6 mm for
the stove. Otherwise it will be necessary to ask the assistance
centre for the appropriate regulations.
3.5. The components of the stove
This drawing shows the internal parts of a pellet stove.
By filling the tank (7), the pellets are loaded into the fire pot (3)
through the loading screw (1).
Ignition is by means of the resistance (2), which overheats the air
from the special entrance (5) which on contact with the pellets will
allow the development of the flame. At this point the exhaust smoke
is deviated towards the stainless steel exchanger (6) and through
the smoke extraction tube (4) it is released into the flue, through the
connection with the smoke exhaust pipe. (9).
4. SAFETY DEVICES
The oven is fitted with sophisticated safety systems so that, in the
case of breakage of one of the individual parts or defects in the flue,
no damage will be caused to the stove and the room in which it is
installed. In any case, when a problem arises, the pellets stop falling
immediately and the switch off phase is activated.
The corresponding alarm will be shown on the display. The details
can be seen in the chapter on the alarms.
5. TECHNICAL FEATURES
All Ravelli products are manufactured according to the following di-
rectives:
• 89/106 EEC
construction materials
• 73/23 EEC
electrical safety
• 2006/42/EEC
machines
• 2004/108 EEC
electromagnetic compatibility
And according to the following standards:
• EN 14785
• EN 60335-1 EN 50165
• EN 292 EN 294 EN 349
• EN 55014.1 EN 61000-3-2 EN 61000-3-3
• EN 55014.2
7
2
3
6
8
5
4
9
1
7
1 - pellet loading screw
2 - resistance unit for ignition
3 - combustion fi re pot
4 - tube for passage of smoke
5 - air intake duct
6 - stainless steel exchanger
7 - pellet hopper
8 - fl ame trap
9 - smoke exhaust duct
SARA (700)
U .M.
Height mm 541,5
Width mm 610
Depth mm 590
Weight Kg 105
Diameter of smoke exhaust duct mm 80
Max. volume of heating m
3
203 (75m
2
)
Min.-max. calorific power Kw/h 2,5 - 9,5
Min.-max. hourly consumption of pellets Kg/h 0,5 - 2
Electrical power absorbed during operation W 110
Supply V - Hz 220 - 50
Tank capacity Kg 15
Min.-max. autonomy h 6 - 30
The data shown above are indicative and not binding. Ecoteck reserves the right to make any modifications for the purpose of
improving the performances of the product.
The data referring to hourly consumption and autonomy have been calculated considering a pellet yield of: 1 kg= 4,7 Kw/h.
… 17 …


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