The EC Declaration of Conformity, the Declaration of Performance required by EU Regulation 305/2011 and all
other product certication documents can be downloaded by scanning the QR code on this page (also found
on the product label) or by accessing the website page www.mczgroup.com/support/mcz
Having specied the above, we highlight and report that:
• This manual and technical data sheet, also available on our website, bear all of the specic indications and necessary and
essential information to choose the product, to install it correctly and to properly size the smoke expulsion system;
• the Products must be installed, controlled and serviced by a qualied operator, according to the instructions in this manual and
in compliance with the laws and installation and maintenance standards in force in individual countries, so as to provide an ecient
heating system, properly sized according to the needs of the home;
• if the Products are thermally stressed, constantly operating for several hours at high power (e.g. 3, 4 hours a day at outputs P4
or P5), we recommend more frequent cleaning and reducing the interval between routine maintenance operations according to the
operating condition of the product. We furthermore point out that these operating conditions increase the risk of premature wear of
the product, especially those parts exposed to the direct heat of the re (e.g. combustion chamber), the original condition of which
can undergo modications and deterioration which, among other things, could generate noise during operation of the unit due to
mechanical expansion.
The manufacturer will not be held liable if the above information is ignored.
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2-INSTALLATION
Technical Dept. - All rights reserved - Reproduction prohibited
The instructions in this chapter refer explicitly to the Italian installation regulation UNI 10683. In any case,
always observe the regulations in force in the country of installation.
PELLETS
The pellet is obtained from natural dried wood sawdust (without paint). The compactness of the material is guaranteed by the lignin
contained in the wood itself, without glue or binders.
The market oers dierent types of pellets with characteristics that vary according to the wood mixtures. The most common diameter on
the market is 6 mm (although 8 mm diameter is also available) with a length, on average, between 3 and 40 mm. A good quality pellet
has a density of between 600 and 750 or more kg/cubic metres and a moisture content that accounts for 5 to 8% of its weight.
Pellets have technical advantages besides being an ecological fuel, as the wood residue is used completely, thereby achieving cleaner
combustion than that of fossil fuels.
While good-quality wood has a caloric value of 4.4 kW/kg (15% moisture, after about 18 months of seasoning), that of pellets is around
4.9 kW/kg. To ensure good combustion, the pellets must be stored in a dry place and protected from dirt. Pellets are usually supplied in 15
kg bags, therefore, storing them is very convenient.
Good quality pellets guarantee good combustion, thereby decreasing harmful emissions into the atmosphere.
The poorer the quality of the fuel, the more often the internal parts of the brazier and combustion chamber need to
be cleaned.
The main quality certications for pellets currently available on the European market guarantee that the fuel complies with class A1/
A2 according to ISO 17225-2. These certications include, for example, ENPlus, DINplus, Ö-Norm M7135, and specically assure that the
following characteristics are complied with:
• caloric value: 4.6 - 5.3 kWh/kg.
• Water content: ≤ 10% of the weight.
• Percentage of ash: max 1.2% of the weight (A1 less than 0.7%).
• Diameter: 6±1/8±1 mm.
• Length: 3-40 mm.
• Content: 100% untreated wood without the addition of binding agents.
The company recommends using certied fuel for its products (ENPlus A1, DINplus, Ö-Norm M7135).
The use of pellets that do not comply with the characteristics specied previously may compromise the operation of
your product and therefore invalidate the warranty and product liability.
15 Kg BAG OF PELLETS
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2-INSTALLATION
FOREWORD
The heating system (generator + combustion air supply + combustion product expulsion system + any hydraulic/aeraulic
system) must be installed in compliance with the laws and regulations in force1, and carried out by a qualied technician,
who must issue a declaration of conformity of the system to the system manager and shall undertake full responsibility
for nal installation and consequent good operation of the product.
The manufacturer declines all responsibility in the event of installations that do not comply with the laws and regulations in force and
inappropriate use of the appliance.
In particular one must ensure that:
• the environment is suitable for installing the appliance (oor load-bearing capacity, presence or possibility of creating an adequate
electrical/hydrauic/aeraulic system when required, volume compatible with the appliance characteristics, etc.);
• the appliance is connected to a smoke expulsion system correctly sized according to EN 13384-1, which is resistant to soot re and
which complies with the distances prescribed by the combustible materials indicated on the plate data;
• there is a suitable combustion air ow to the appliance;
• other combustion appliances or extraction devices installed do not cause a negative pressure of more than 4 Pa in the room where
the product is installed compared to the outside (only sealed appliances are allowed a maximum of 15 Pa of negative pressure in
the room).
1 The national reference standard for the installation of domestic appliances is UNI 10683 (IT) - DTU NF 24.1 (FR) - DIN 18896 (DE) - NBN B 61-002 (BE) - Real Decreto 1027/2007
(ES)
In particular, it is recommended to strictly observe the safety distances from combustible materials to avoid serious harm
to people and to the integrity of the home.
Installation of the appliance must ensure easy access to service the appliance itself, the smoke channels and the ue.
Always maintain adequate distance and protection in order to prevent the product from coming into contact with water.
It is forbidden to install the stove in rooms with a re hazard.
With the exception of sealed installations, it is also forbidden for liquid fuel appliances with continuous or intermittent
operation that draw the combustion air from the room they are installed in or B-type gas heating appliances, with or
without the production of domestic hot water, to coexist in the same room or in interconnecting rooms.
Sealed installation means that the product is certied as sealed and its installation (ducting of the combustion air
and connection to the chimney) is airtight with respect to the installation environment.
A sealed installation does not consume the room’s oxygen but draws all the air from the outer environment (if suitably ducted) and makes
it possible to install the product, therefore, it can be installed in all houses that require a high degree of insulation such as “passive” or
“high energy eciency” houses. Thanks to this technology there is no risk of smoke emissions in the room, hence no air inlets and relevant
ventilation grilles are required in the installation premises.
Consequently, there will be no more draughts of cold air in the room, which would otherwise make it less comfortable and reduce the
overall eciency of the system. The sealed stove may even be installed in a sealed installation that is compatible with the presence of
forced ventilation or in premises that might have negative pressure with respect to the outside.
dP
dL
dR
dS
6
6
3
5
2
41
6
dR
dP
dC
dF
5
3
dB
4
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2-INSTALLATION
Technical Dept. - All rights reserved - Reproduction prohibited
MINIMUM DISTANCES
Observe the distances from ammable objects (sofas, furniture, wood panelling, etc..) as specied in the following diagram.
If objects considered to be particularly sensitive to heat are present, such as furniture, curtains or sofas, as a precaution, increase the stove
clearances substantially to avoid possible deterioration due to the eect of heat.
Safety distance from combustible material (mm)
dR (rear distance)120
dS (side distance)250
dB (lower distance)0
dC (upper distance)800
dP (front radiation)1000
dF (oor radiation)1000
dL (side radiation)1000
KEY
1FLOOR4FLOOR GUARD
2FRONT FLAMMABLE MATERIAL5RADIATED SURFACE TO BE PROTECTED
3AREA SUBJECT TO RADIATION6REAR/SIDE/UPPER FLAMMABLE SURFACE
If the oor is made of combustible material, use a protection made of non-combustible material (steel, glass...) that also protects the front
from any falling combusted material during cleaning operations.
Always t a oor guard if the oor is made of ammable material.
Install the stove also detached from any non-combustible walls/surfaces, observing a minimum clearance of 120 mm (back) and 250 mm
(side) to allow eective aeration of the appliance and a good distribution of heat in the room.
14
2-INSTALLATION
In any case, ensure adequate distance to facilitate access during cleaning and extraordinary maintenance. If this is not possible, it must
still be possible to distance the product from adjacent walls/elements.
This operation must be performed by a technician qualied to disconnect the combustion product expulsion ducts and their subsequent
restoration.
For generators connected to the hydraulic system, a connection must be provided between the system itself and the product so that,
during extraordinary maintenance, carried out by a qualied technician, it is possible to move the generator by at least 50 cm from
adjacent walls without emptying the system (e.g. by using a double shut-o gate or suitable exible connection).
Air inlet
It is mandatory to provide an adequate external air inlet that supplies the combustion air required for the product to work properly. The
ow of air between the outside and the installation room can take place with a free air inlet or by channelling the air directly to the
outside3.
The free air inlet must:
• be made at oor level
• always be protected with an outer grille and in such a way that it cannot be obstructed by any object
• have a minimum total free area of 80 cm2 (net of the grille)
The presence of other suction devices (e.g.: vmc, electric fan for stale air extraction, kitchen hood, other stoves, etc.), in the same room
could cause negative pressure in the room. In this case, with the exception of sealed installations, one must verify that, with all the
equipment on, no more than 4 Pa of negative pressure is created inside the installation room with respect to the outside. If necessary,
increase the air inlet section.
It is possible to duct the air required for combustion to the outside by connecting the external air inlet directly with the combustion air
inlet which is usually found on the back of the appliance.
The duct must comply with the following dimensions (each 90° bend is equivalent to one linear metre):
3 in the event the combustion air is ducted on unsealed products, still verify that no more than 4 Pa of negative pressure is created inside the installation room with respect to the
outside, otherwise provide for an additional air intake in the room.
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2-INSTALLATION
Technical Dept. - All rights reserved - Reproduction prohibited
Below 15kW:
Air duct diameterMaximum length
(smooth duct)
Maximum length
(corrugated duct)
50mm2m1m
60mm3m2m
80mm7m4m
100mm12m9m
Above 15kW:
Air duct diameterMaximum length
(smooth duct)
Maximum length
(corrugated duct)
50mm--
60mm1m-
80mm3m1m
100mm7m4m
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2-INSTALLATION
Preparing the smoke expulsion system
The combustion product expulsion system is a particularly important element for the proper operation of the appliance and must be
correctly sized according to EN 13384-1.
Its creation/adaptation/verication must always be carried out by a legally qualied operator and must comply with the regulations in
force in the country where the appliance is installed.
The Manufacturer declines all liability for malfunctions caused by a badly sized and non-compliant smoke expulsion system.
Smoke duct (smoke tting)
The smoke duct is the pipe that connects the appliance to the ue.
This smoke tting must comply in particular with the following requirements:
• comply with product standard EN 1856-2;
• its cross-section must be of constant diameter and no less than that of the appliance outlet, from the rebox outlet up to the
connection in the ue;
• the horizontal section must be as short as possible and extend no more than 4 metres;
• the horizontal sections must have a minimum upward slope of 3%;
• changes of direction must have an angle no greater than 90° and be easy to inspect
• the number of changes of direction, including that for entry into the ue, and exclusion of the T in the event of a side or rear outlet,
must not exceed 3;
• it must be insulated if it passes outside the installation room
• it must not in any case cross rooms in which it is forbidden to install combustion appliances.
• the use of exible metal and bre cement or aluminium hoses is forbidden;
In any case, smoke ducts must be sealed against combustion products and any condensation. For this reason, it is recommended to use
pipes with silicone gaskets or similar sealing devices that withstand the operating temperatures of the appliance (e.g. T200 P1) and that
by removing the gaskets, are still T400 N1 G certied.
Flue (chimney or piped duct)
When creating the ue, in particular comply with the following requirements:
• comply with the applicable product standard (EN 1856, EN 1857 EN 1457, EN 1806, EN 13063..);
• be made with suitable materials to ensure resistance to normal mechanical, chemical, thermal stresses and have adequate thermal
insulation in order to limit the formation of condensate;
• have a predominantly vertical conguration and be free of choke points along its entire length;
• be correctly spaced by air gaps and isolated from combustible materials;
• the ue inside the house must still be insulated and can be inserted in an air shaft provided it complies with the regulations for
piping;
• the smoke duct must be connected to the ue by means of a Tee tting with an inspectable collection chamber for the collection of
soot and any condensate.
• where the sizing provides for wet operation, a suitable condensate collection and siphon discharge system must be set up.
We recommend checking the data plates of the ue for the safety distances that must be observed in the presence of
combustible materials and, if necessary, the type of insulating material to be used.
It is forbidden to connect the stove to a collective or shared ue (*) with other combustion appliances or with hood
outlets.
It is forbidden to use the direct drain on the wall or towards indoor spaces and any other form of drain not provided
for by the regulation in force in the country of installation.
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2-INSTALLATION
Technical Dept. - All rights reserved - Reproduction prohibited
Chimneypot
The chimneypot, meaning the end part of the ue, must meet the following characteristics:
• the smoke outlet section must be at least double the internal section of the chimney;
• prevent the penetration of rain or snow;
• ensure the outlet of smoke even in the event of wind (windproof chimneypot);
• the height of outow must be beyond the reux area (*) (refer to national regulations to identify the reux area);
• always be built at a distance from antennas or dishes, and never be used as a support.
(*) unless there are specic national derogations (clearly specied in the corresponding instruction manual in English) which under
appropriate conditions allow it; in this case, strictly follow the product/installation requirements of the relative regulations/technical
specications/legislation in force in that country.
P
U
1
s
F
U
P
U
I
AB
C
D
E
A
2
s
4
S
3
SV
T
V
A
E
E
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2-INSTALLATION
EXAMPLES OF INSTALLATION4 (DIAMETERS AND LENGTHS TO BE SIZED)
1. Flue installation with hole for the passage of the pipe
increased by:
• minimum 100mm around the pipe if next to
non-ammable parts such as cement, brick, etc.; or
• minimum 300mm around the pipe (or as
required by plate data) if next to ammable parts such
as wood etc.
In both cases, install suitable insulation between the ue
and the ceiling.
Always check and comply with the plate data of the
ue, specically the minimum safety distances from
combustible materials.
The previous rules also apply for holes made in walls.
2. Old ue, pipe with the inclusion of an external access
door for chimney cleaning.
3. External ue made of insulated stainless-steel pipes,
i.e. with double walls: all securely mounted on the wall.
With windproof chimneypot.
4. Ducting system using Tee ttings that allow easy
access for cleaning without having to remove the pipes
4 The gure shows typical, but not exhaustive, examples of all possible installations (which must always be approved by a qualied technician)
U=INSULATION
V=POSSIBLE DIAMETER INCREASE
I=INSPECTION CAP
S=INSPECTION ACCESS PANEL
P=AIR INLET
T=TEE FITTING WITH INSPECTION CAP
A=DISTANCE FROM FLAMMABLE MATERIAL (SMOKE
DUCT PLATE)
B=MAXIMUM 4 M
C=MINIMUM 3° SLOPE
D=DISTANCE FROM FLAMMABLE MATERIAL
(APPLIANCE PLATE)
E=REFLUX AREA
F=AIR DUCTING
560
5861153
15
196
150
268
270
Ø50Ø80
x
xx
19
3-DRAWINGS AND TECHNICAL SPECIFICATIONS
Technical Dept. - All rights reserved - Reproduction prohibited
Libble nimmt den Missbrauch seiner Dienste sehr ernst. Wir setzen uns dafür ein, derartige Missbrauchsfälle gemäß den Gesetzen Ihres Heimatlandes zu behandeln. Wenn Sie eine Meldung übermitteln, überprüfen wir Ihre Informationen und ergreifen entsprechende Maßnahmen. Wir melden uns nur dann wieder bei Ihnen, wenn wir weitere Einzelheiten wissen müssen oder weitere Informationen für Sie haben.
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