MCZ FORMA WOOD, 75 DX-SX, 95 DX-SX, T95, T50 INSTALLATION AND USER GUIDE
INSTALLATION AND USER GUIDE EN
CLOSED FIREPLACE
FORMA WOOD
75 DX-SX
95 DX-SX
T95
T50
Translation of original instructions
TABLE OF CONTENTS
TABLE OF CONTENTS
INTRODUCTION
1WARNINGS AND WARRANTY CONDITIONS
.......................................................................................................................6
2FUEL
3INSTALLATION
.......................................................................................................................8
4FLUE
5DIMENSIONS AND TECHNICAL CHARACTERISTICS
6INSTALLATION AND ASSEMBLY
7OPERATION
8MAINTENANCE AND CLEANING
.................................................................................................. II
..........................................................................................................1
.................................................................2
.........................................................................................................7
.....................................................16
...............................................................................21
...........................................................................................................28
...............................................................................34
II
INTRODUCTION
Dear Customer,
our products are designed and manufactured in compliance with European reference Standards for construction products (EN13240
wood-burning stoves, EN14785 pellet-burning appliances, EN13229 replaces/wood-burning inserts, EN 12815 wood-burning cookers),
with high quality materials and extensive experience in the transformation processes.
To get the best performance, we suggest you read the instructions in this manual carefully.
This installation and use manual forms an integral part of the product: ensure that the manual is always supplied with the device, even if
the boiler changes owner. If the manual is lost, you can request another copy from the local technical service or download it directly from
the company website.
All local regulations, including those regarding national and European regulations, must be respected when the device is installed.
In Italy, for the installation of devices with biomass lower than 35KW, refer to ministerial decree 37/08, and the qualied installation
technician with the appropriate requisites must issue a certicate of compliance for the system installed. (By system one means
Stove+Chimney+Air inlet).
REVISIONS TO THE PUBLICATION
The content of this manual is strictly technical and the property of MCZ Group Spa.
No part of this manual may be translated into other languages, adapted or reproduced, even in part, in other mechanical or electronic
forms, photocopies, recordings or other, without the prior written authorisation from MCZ Group Spa.
The company reserves the right to make changes to the product at any time without prior notice. The proprietary company reserves its
rights according to the law.
CARE OF THE MANUAL AND HOW TO CONSULT IT
• Take care of this manual and keep it in an easily accessible place.
• Should the manual be misplaced or ruined, request a copy from your retailer or directly from the authorised Technical Assistance
Department. It can be downloaded from the company website.
• The “text in bold” must be read with particular care.
• The “text in italics” draws attention to other sections in this manual or clarications.
• “NOTE” provides the reader with additional information.
SYMBOLS USED IN THE MANUAL
ATTENTION:
Read the relative message with care as failure to observe the information provided could result in serious damage to the product and put the persons who use it at risk.
INFORMATION:
failure to comply with these provisions will compromise the use of the product.
OPERATING SEQUENCES:
sequence of buttons to be pressed to access the menus or change settings.
MANUAL
carefully read this manual or the relative instructions.
Technical Dept. - All rights reserved - Reproduction is prohibited
1
1WARNINGS AND WARRANTY CONDITIONS
SAFETY PRECAUTIONS
• Installation, electrical connection, function test and maintenance must only be carried out by authorised and
qualied personnel.
• Install the product in accordance with all local and national legislation and regulations in force in the region or state.
• Only use the fuel recommended by the manufacturer. The product must not be used as an incinerator.
• It is strictly forbidden to use alcohol, petrol, liquid fuel for lanterns, diesel, bio-ethanol, uids for lighting charcoal or similar liquids to
light/rekindle the ame in these devices. Keep these ammable liquids well away from the appliance when in use.
• Do not insert fuel other than wood in the combustion chamber.
• The instructions provided in this manual must always be complied with to ensure the product and any electronic appliances
connected to it are used correctly and accidents are prevented.
• The user, or whoever is operating the product, must read and fully understand the contents of this installation guide before
performing any operation. Errors or incorrect settings can cause hazardous conditions and/or poor operation.
• Do not climb on or lean on the product.
• Do not put linen on the product to dry. Any drying racks or similar objects must be kept at a safe distance from the product. Fire
hazard.
• All liability for improper use of the product is entirely borne by the user and relieves the Manufacturer from any civil and criminal liability.
• Any type of tampering or unauthorised replacement with non-original spare parts could be hazardous for the operator’s safety and
relieves the company from any civil and criminal liability.
• Many of the surfaces of the product get very hot (door, handle, glass, smoke extraction pipes, etc.). Avoid coming into contact
with these parts, without adequate protective clothing or suitable implements, such as gloves with thermal
protection or “cold handle” operating systems.
• It is forbidden to operate the product with the door open or the glass broken.
• The product must be powered by an electrical system that is equipped with an eective earthing system.
• Do not wash the product with water.
• Do not stand for a long time in front of the product in operation. Do not overheat the room you are in and where the product is
installed. This could cause injuries and health problems.
• Install the product in a location that does not present a re hazard and is equipped with power and air supplies and smoke extractors.
• Do not use water to put the re out.
• In the event the chimney catches re never open the fuel loading door. Then contact the competent authorities.
• The product and the cladding must be stored in a dry place and must not be exposed to weathering.
• It is recommended not to remove the feet that support the product in order to guarantee adequate insulation, especially if the
ooring is made of ammable materials.
• Special maintenance must only be performed by authorised and qualied personnel.
• Assess the static conditions of the surface on which the weight of the product will rest and provide suitable insulation if it is made of
ammable material (e.g. wood, tted carpet or plastic).
2
1WARNINGS AND WARRANTY CONDITIONS
INFORMATION:
Please contact the retailer or qualied personnel authorised by the company to resolve a problem.
• You must only use the fuel specied by the manufacturer.
• When the product is switched on for the rst time it is normal for it to emit smoke due to the paint overheating. Therefore make sure
the room in which it is installed is well ventilated.
• Check and clean the smoke extraction pipes regularly (connection to the chimney).
• The product is not a cooking appliance.
• Store this installation and use manual with care as it must accompany the product for the duration of its useful life. If the product is
sold or transferred to another user, ensure the manual is also handed over.
INTENDED USE
The product only works with wood logs and must be installed indoors.
WARRANTY CONDITIONS
The company guarantees the product, with the exception of elements subject to normal wear listed below, for a period of 2 (two)
years from the date of purchase attested by:
• a document to serve as proof of purchase (invoice and/or receipt) that shows the name of the vendor and the date on which the
purchase was made;
• forwarding of the completed certicate of guarantee within 8 days of purchase;
Furthermore, the product must be installed and started by specialised personnel who must, where provided, issue a declaration of
conformity of the plant and of the proper functioning of the product, for the warranty to be valid and eective.
We recommend testing the product before completion with the relative nishes (claddings, painting of walls, etc.).
Installations not meeting the current standards, improper use and lack of maintenance as expected by the manufacturer, void the product
warranty.
The guarantee is valid on the condition that the instructions and warnings contained in the use and maintenance manual are observed,
and therefore the product is used correctly.
The replacement of the entire system or the repair of one of its components does not extend the guarantee period, and the original expiry
date remains unchanged.
The guarantee covers the replacement or free repair of parts recognised as being faulty at source due to manufacturing defects.
To benet from the guarantee, in the event of a fault, the customer must have the guarantee certicate and present it with the proof of
purchase document to the Technical Assistance Oce.
Technical Dept. - All rights reserved - Reproduction is prohibited
3
1WARNINGS AND WARRANTY CONDITIONS
EXCLUSIONS
The guarantee does not cover malfunctions and/or damage to the appliance that arise due to the following causes:
• Damage caused during transportation or relocation
• all parts that develop faults due to negligence or improper use, incorrect maintenance, installation that does not comply with the
manufacturer’s instructions (always refer to the installation and use manual provided with the appliance)
• incorrect dimensioning with regards to the use or faults in the installation or failure to adopt the necessary devices to guarantee
proper execution
• improper overheating of the equipment, use of fuels not conforming to the types and quantities indicated in the instructions provided
• further damage caused by incorrect user interventions in an attempt to x the initial fault
• worsening of the damage due to the continued use of the equipment by the user, once the defect has been noticed
• in the presence of a boiler, any corrosions, incrustations or breaks caused by water ow, condensation, hardness or acidity of the
water, improperly performed descaling treatments, lack of water, mud or limescale deposits
• ineciency of chimneys, ues or parts of the plant aecting the equipment
• damage due to appliance tampering, weathering, natural disasters, acts of vandalism, lightning, re
• defects of the electrical and/or hydraulic system.
This warranty also does not cover:
• parts subject to normal wear such as gaskets, glass, claddings and cast iron grids, painted, chrome-plated or gilded parts, handles
and electric cables, bulbs, indicator lights, knobs, all parts which can be removed from the hearth.
• Variations in colour of the painted or ceramic/serpentine parts and craquelure ceramics as they are natural characteristics of the
material and product use.
• masonry work
• plant parts (if present) not supplied by the manufacturer
Any technical interventions on the product to eliminate the above-said defects and consequent damages must be agreed upon with
the Technical Assistance Centre, who reserves the right to accept the relative appointment or not. However, said interventions will not
be carried out under warranty but as technical assistance to be granted at part of any eventual and specic agreed conditions and in
accordance with the fee in force for the work to be carried out.
The user will also be charged for any costs incurred to remedy the incorrect technical interventions, tampering or damage to the appliance,
not attributable to original faults.
Save for the legal or regulatory limits, the guarantee does not cover the containment of atmospheric and acoustic pollution.
The company declines all liability for any damage which may be caused, directly or indirectly, to persons, animals or objects as
a consequence of non compliance with any prescription specied in the manual, especially warnings regarding installation,
use and maintenance of the appliance.
4
1WARNINGS AND WARRANTY CONDITIONS
SPARE PARTS
In the event of a malfunction, consult the retailer who will forward the call to the Technical Assistance Service.
Use only original spare parts. The retailer or service centre can provide all necessary information regarding spare parts.
We do not recommend waiting for the parts to be worn before having them replaced. It is important to perform regular maintenance.
The company declines all liability if the product and any other accessory is used improperly or modied without
authorisation.
All parts must be replaced with original spare parts.
WARNINGS FOR THE CORRECT DISPOSAL OF THE PRODUCT.
The owner is the sole party responsible for demolishing and disposing of the product. This must be performed in compliance with laws
related to safety and environmental protection in force in his/her country.
At the end of its working life, the product must not be disposed of as urban waste.
It must be taken to a special dierentiated waste collection centre set up by the local authorities or to a retailer that provides this service.
Separating and recycling prevents potential negative eects on the environment and health (often caused by inappropriately disposing of
product parts). It also allows materials to be recovered in order to obtain signicant savings in energy and resources.
Technical Dept. - All rights reserved - Reproduction is prohibited
5
2FUEL
The instructions in this chapter refer explicitly to the Italian installation regulation UNI 10683. In any case, always observe the domestic
regulations in force.
FUEL
Below are some useful instructions for the correct use of the product
• Only burn natural, untreated wood with maximum humidity of 20%, which corresponds to cut wood with 2 years of correct drying
(FIG.A).
• All types of wood are suitable, both hard and soft: beech, maple, oak, birch, acacia, r, pine, larch, etc.
• Always use wood that is of the right size and not intact, because a whole log impedes the supply of air inside.
• Always burn the wood horizontally and not standing up
• For each load, always use the amount of wood indicated by the manufacturer and do not load one piece after another, because the
ame would never reach a sucient temperature for proper combustion.
• Do not insert an amount above that indicated to prevent excessive ames with excessively high smoke and wall temperatures.
• The thickness and length of the wood must always comply with the manufacturer’s indications: the size must be about 7-10 cm and
the length (25 or 30cm) depends on the size of the hearth in the combustion chamber. (FIG.B)
Below are some useful indications for the correct storage of the wood:
• stored wood must already be sized for use.
• optimal drying requires a minimum of 2 years (longer times would not lead to a increased drying).
Storage must be:
• well ventilated and aired (FIG.C)
• covered to protect from rain and protected from sunlight, because the wood would lose quality
• not resting directly on the oor but at a distance of about 20-30 cm to prevent rotting.
• At a distance of about 5-10 cm from walls.
• Possibly outside, otherwise in rooms or cellars that are well ventilated, preventing the formation of mold (always leave the window
open!).
• Wood must always be stored at a sucient safe distance from the combustion unit - always comply with the re and safety
regulations.
FIG.A - MAX HUMIDITY 20% FIG.B - MAX SIZE 7-10 CM
6
FIG.C - WOOD STORAGE
3INSTALLATION
INSTALLATION
FOREWORD
The installation position must be chosen according to the room, to the smoke extraction system, to the chimney ue. Check with local
authorities whether there are any restrictive regulations in force regarding the combustion air inlet, the smoke outlet system, the
ue or the chimney cap. The manufacturer declines all responsibility in the event of installations that do not comply with the laws in
force, incorrect room air exchange, electrical connection non-compliant with the standards and inappropriate use of the appliance. The
installation must be carried out by a qualied technician, who must issue a declaration of conformity of the system to the purchaser and
will assume full responsibility for nal installation and consequent good operation of the product.
In particular one must ensure that:
• there is a suitable combustion air inlet and smoke outlet in compliance with the type of product installed
• other stoves or devices installed do not cause depression in the room where the product is installed
• when the product is switched on there is no reux of smoke in the room
• fumes extraction takes place in total safety (sizing, smoke seal, distances from ammable materials..).
We especially recommend to check the data tags of the ue for the safety distances that must be observed in presence
of combustible materials and the type of insulating material to be used. These indications must be followed strictly to
prevent serious harm to people and the integrity of the home. The installation of the appliance must ensure easy access to
clean the appliance itself, the smoke outlet pipes and the ue. It is forbidden to install the product in rooms with a re hazard.
Installation in studio ats, bedrooms and bathrooms is only allowed with sealed or closed appliances equipped with
suitable combustion air ducting directly outside. Always maintain adequate distance and protection in order to prevent
the product from coming into contact with water.
In the event there are several appliances installed, the external air inlet must be sized accordingly.
MINIMUM DISTANCES
We recommend installing the stove away from walls and furniture, with a minimum clearance to allow eective aeration of the appliance
and a good distribution of heat in the room. Observe the distances from ammable or heat-sensitive objects (sofas, furniture, wood
panelling, etc.) as specied. The front distance from ammable materials must be at least 1 metre.
If particularly delicate objects are present, such as furniture, curtains or sofas, increase the product clearance accordingly.
If the oor is made of combustible material, it is recommended to use protection made of non-combustible material (steel, glass...) that
also protects the front from falling combusted material during cleaning operations.
The appliance must be installed on a oor with adequate load capacity.
If the existing construction does not meet this requirement, one must take appropriate measures (for example a load distribution plate).
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7
4FLUE
SMOKE FLUE
FOREWORD
The Chimney Flue chapter has been drawn up with reference to the provisions of European Standards (EN13384 - EN1443 - EN1856 EN1457).
The chapter provides indications for installing an ecient and correct smoke ue but is under no circumstances to substitute the
regulations in force, which the qualied technician must be in possession of. Check with local authorities whether there are any restrictive
regulations in force regarding the intake of air for combustion, the smoke extraction system, the ue or the chimney.
The company declines all liability relating to the poor functioning of the boiler if this is due to the use of an insuciently sized ue in
violation of regulations in force.
SMOKE FLUE
The ue or chimney is of great importance for the proper operation of a solid fuel-burning heating appliance with natural draught, as
modern heating appliances have high eciency with cooler ue gasses and consequently less draught, it is therefore essential that the
ue is built up to standard and always kept in perfect working order. A ue that serves a wood-burning appliance must be at least category
T400 (or greater if the appliance requires so) and resistant to soot res. Smoke must be extracted through a single ue made of insulated
steel (A) or an existing ue that complies with the intended use (B).
A simple air shaft in cement must be suitably lined. In both solutions there must be an inspection cap (AT) and/or inspection hatch (AP)
- FIG.1.
It is prohibited to connect more than one wood/pellet or any other type of appliance (vent cowling...) to the same ue.
min.3,5 metri
AT
(A)
FIGURE 1 - SMOKE FLUE
8
(B)
AP
4FLUE
TECHNICAL CHARACTERISTICS
Have the eciency of the ue checked by an authorised technician.
The ue must be sealed against ue gasses, in a vertical direction without narrowing, be made with materials impermeable to smoke,
condensation, thermally insulated and suitable to resist normal mechanical stress over time (we recommend replaces made of A/316
or refractory material with insulated round section double chamber). Be suitably insulated externally to avoid condensation and reduce
smoke cooling. It should be separated from combustible or ammable materials with an air gap or insulating materials: check the distance
specied by the manufacturer of the replace according to EN1443. The chimney opening must be in the same room as the appliance,
or at most in the adjoining room, and have a soot and condensation collection chamber beneath the opening, and be accessible via a
watertight metal hatch.
FLAT ROOF
A = 0.50 metres
B = DISTANCE > 2 metres
D
A
ROOF AT 15°
A
ROOF AT 30°
A
B
E
B
C
B
C
15°
30°
C
D
E
D
F
E
C = DISTANCE < 2 metres
D = O.50 metres
E = TECHNICAL VOLUME
FIGURE 2
A = MIN. 1.00 metres
B = DISTANCE > 1.85 metres
C = DISTANCE < 1.85 metres
D = 0.50 metres above highest
point
F
E = 0.50 metres
F = REFLUX ZONE
FIGURE 3
A = MIN. 1.30 metres
B = DISTANCE > 1.50 metres
C = DISTANCE < 1.50 metres
D = 0.50 metres ABOVE
HIGHEST POINT
E = 0.80 metres
F = REFLUX ZONE
FIGURE 4
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9
4FLUE
ROOF AT 60° ROOF AT 45°
B
C
A
60°
A = MIN. 2.60 metres
B = DISTANCE > 1.20 metres
C = DISTANCE < 1.20 metres
D = 0.50 metres ABOVE HIGHEST POINT
E = 2.10 metres
F = REFLUX ZONE
D
E
F
FIGURE 5 FIGURE 6
A
A = MIN. 2.00 metres
B = DISTANCE > 1.30 metres
C = DISTANCE < 1.30 metres
D = 0.50 metres ABOVE HIGHEST POINT
E = 1.50 metres
F = REFLUX ZONE
B
C
D
F
45°
E
DIMENSIONING
The drop in pressure (draft) of a ue depends on its height. Check the drop in pressure with the values indicated in the technical
characteristics. The minimum height of the chimney is 3.5 meters.
The interior cross-section of the ue can be circular (best variation), square or rectangular (the ratio between the interior sides must be
≤1.5) with the sides joined with a minimum radius of 20 mm. The size of the section must be minimum equal to that of the unit outlet
(smaller diameters must be conrmed by an adequate system size calculation).
The cross-sections/lengths of the chimneys shown in the technical data tables are indications for correct installation. Any alternative
congurations must be correctly dimensioned in accordance with the general method of calculation of UNI EN13384-1 or other proven
eciency methods.
Below is a list of some ues available on the market:
Steel chimney AISI 316 with
double chamber insulated with
ceramic bre or equivalent
resistant up to 400°C.
Refractory chimney with
double insulated chamber and
external lightweight concrete
cladding with cellular material
such as clay.
Traditional square-section clay
chimney with insulating empty
inserts.
Avoid products with an internal
rectangular section where the
larger side is 1.5 times the
smaller side (e.g. 20x40 or
15x30).
EXCELLENT GOOD POOR VERY POOR
10
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