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FORMA WOOD CLOSED FIREPLACE 

Chapter 5

 

USE AND MAINTENANCE MANUAL 

page

 24  

 

Operation 

Technical dept. - All rights reserved by MCZ Group S.p.A. - Reproduction prohibited 

 

Max

Min

 

 

MCZ BEARS NO RESPONSIBILITY FOR DAMAGE TO 

CLADDING IF THE PREVENTATIVE CHECKS LISTED 

ABOVE ARE NOT PERFORMED AND THE CLADDING 

MUST BE PULLED DOWN TO CARRY OUT REPAIRS OR 

ADJUSTMENTS.  

5.2.1.  

Stages for the first test start-up 

 

Make sure you have read and fully understood the contents of 

this instruction manual. 

 

Remove all components that may burn from the combustion 

chamber of the closed fireplace and from the door (instructions and 

various adhesive labels). 

 

Remove the stickers from the glass ceramic otherwise the high 

temperature may melt them and cause irreparable damage to 

the glass. MCZ will not guarantee the glass if you fail to do this. 

 

Open the front combustion air damper using the hook supplied.

 

 

Position the wood in small pieces and ensure that it is well dried 

(15/20% moisture). Start the fire on a moderate power level 

without excessively overheating the structure. Any odours 

deriving from residues from operation and/ or evaporation will 

from when the appliance is first started up and will disappear 

after the appliance has been started up and run a few times. 

 

Do not close the rise and fall door straight away. Instead, leave it 

approximately 10 cm open so that the wood is able to burn more 

efficiently and any internal moisture is able to dry. When the 

flame is stable close the door fully. 

 

5.3.  

CHOICE OF FUEL 

In order to get the best efficiency from your closed fireplace it is of vital 

importance that you use 

wood with appropriate characteristics

.  

We recommend that you use 

heating wood such as 

oak, beech, 

ash or robinia 

that has excellent heat output properties or 

non-

resinated 

pressed logs. 

These logs have a high calorific value 

and must be

 

used with caution to avoid harmful overheating of 

the closed fireplace.  
We recommend that you do not use 

fuels such as 

poplar, pine, 

linden or chestnut 

as these have a low calorific value (being soft 

woods) and have a short duration.  

We recommend that you avoid 

fuels such as 

pine, fir and olive 

tree 

as these are very resinous woods and during combustion they 

may soil the mouth of the fire and the glass ceramic. They also do not 

offer the best efficiency. 

For all the types of wood listed the degree of moisture that 

they contain is of fundamental importance as this determines 

the heat output. 

 

 

Do not use treated fuels (painted or lacquered wood 

or chips) or non-compliant fuels (plastic or 

derivatives) which could release toxic substances or 

pollutants. Do not burn waste. Gases produced from 

combustion of unsuitable fuel may damage the closed 

fireplace and the flue pipe and may create pollution 

and compromise your health. 

Wood drying 

time (e.g. beech)

 

moisture

Calorific 

value 

Kcal/h

 

Freshly cut 

50 

3 Months

 

40 2410 

6 Months 

35 

2700 

9 Months 

30 

2900 

12 Months 

25 

3150 

15 Months 

20 

3400 

18 Months 

15 

3710 

21 Months 

10 

3980 

Figure 11 – 

Heat output of the wood (e.g. 

beech) in relation to the moisture contained. 

Figure 10 – 

Adjusting the combustion air 

damper to maximum 

Summary of Contents for FORMA WOOD 75 DX-SX

Page 1: ...8901161300 USE AND INSTALLATION MANUAL EN...

Page 2: ...ion 13 3 3 Dimensions of the Forma Wood T95 14 3 4 Technical specifications 15 4 INSTALLATION AND ASSEMBLY 16 4 1 PREPARATION AND UNPACKING 16 4 2 OPERATING MODE SELECTION 17 4 2 1 Natural convection...

Page 3: ...nts Technical dept All rights reserved by MCZ Group S p A Reproduction prohibited 6 1 1 Cleaning the glazing 28 6 1 2 Ash removal 28 6 1 3 Cleaning refractory walls ALUTEC 28 6 2 CLEANING UNDER THE RE...

Page 4: ...is document the Manufacturer reserves the right to make any changes without notice All reproduction including partial of this manual without the Manufacturer s authorisation is strictly prohibited Car...

Page 5: ...liability for incorrect use Tampering of any nature or replacement of spare parts with non original parts may endanger the operator MCZ bears no civil or criminal liability for tampering or use of no...

Page 6: ...se manual MCZ cannot be held liable for any damage which may either directly or indirectly be caused to persons animals or property ensuing from failure to observe all the instructions provided in the...

Page 7: ...that present a fire hazard for example garages timber storerooms or warehouses for flammable materials The provisions of all the applicable standards in force must be observed in all circumstances Ins...

Page 8: ...rough hole with a minimum free cross section of 360 cm in the external wall near the closed fireplace 22 cm diameter or 20x18 cm rectangular hole protected by a grille on the inside and on the outside...

Page 9: ...event obstructions nor too short to prevent smoke leakage If metal connections are used it is essential that they be insulated with suitable material such as ceramic fibre to prevent damage to walls a...

Page 10: ...inspect from an airtight flap IMPORTANT If you have doubts about the performance of your flue pipe or if the dimensions of the pipe differ from the recommended values it is highly advisable to have a...

Page 11: ...ain snow and any foreign bodies from penetrating the flue pipe Be positioned so as to ensure adequate dispersion of smoke and in all cases outside the reflux area in which back pressures are likely to...

Page 12: ...roup S p A Reproduction prohibited 3 DIMENSIONS AND TECHNICAL SPECIFICATIONS 3 1 Dimensions of the Forma Wood 75 rh lh fig shows lh version 428 258 244 830 750 rivestimento 705 porta 1389 580 rivestim...

Page 13: ...ts reserved by MCZ Group S p A Reproduction prohibited 3 2 Dimensions of the Forma Wood 95 rh lh fig shows lh version 509 72 99 455 porta 467 porta 583 503 rivestimento 1025 900 porta 945 rivestimento...

Page 14: ...s Technical dept All rights reserved by MCZ Group S p A Reproduction prohibited 3 3 Dimensions of the Forma Wood T95 1067 1025 porta 1288 47 137 1026 rivestimento MIN 33 MAX 60 489 rivestimento 514 5...

Page 15: ...smoke 13 O2 0 16 Smoke flow rate 20 1 g s Flue Pipe Up to 5 m 30x30 cm diameter 30 Over 5 m 25x25 cm diameter 25 Notes Intermittent combustion appliance These data may vary according to the type of fu...

Page 16: ...uring transport The carrier or retailer must be informed immediately of any damage If the closed fireplace is installed in a place that is difficult to access the weight can be lightened by removing t...

Page 17: ...esponsibility of the end user in compliance with the applicable laws in force 4 2 OPERATING MODE SELECTION IMPORTANT Decide which system to use before installing the appliance The FORMA system is able...

Page 18: ...to make it easier to move the unit to the place in which it is to be installed Figure 3 Once the closed fireplace is in position the wheels must be lifted from the floor and removed so that the unit i...

Page 19: ...iance Removal of the feet is deemed to be a structural modification to the product and as such invalidates the guarantee Adjusting the level of the closed fireplace is an essential operation to allow...

Page 20: ...fireplace is installed with forced ventilation in other words using a Comfort Air kit create the air inlets and ducts as follows for correct oxygen exchange in the room we recommend that you include...

Page 21: ...NG TO CLAD THE CLOSED FIREPLACE The closed fireplace and parts of the cladding must be fixed to each other WITHOUT BEING IN CONTACT WITH THE STEEL STRUCTURE This prevents transfer of heat to marble an...

Page 22: ...his warning For correct operation of the room ventilation remember that A convective air inlet of at least 400 cm2 The upper part of the cladding must include an outlet additional to the ducted outlet...

Page 23: ...ontraction during the start up and cooling phases and may therefore squeak slightly This is completely normal given that the structure is made from laminated steel It should therefore not be considere...

Page 24: ...s stable close the door fully 5 3 CHOICE OF FUEL In order to get the best efficiency from your closed fireplace it is of vital importance that you use wood with appropriate characteristics We recommen...

Page 25: ...ted up normal sized wood can be introduced The flame must be as laminar as possible During the various reloading processes the fire door must be opened slowly to avoid smoke being released into the ro...

Page 26: ...ht or left of the closed fireplace using the cold hand supplied This is shown in figure 12 Simply thread the cold hand on the hole and lift the door upwards Reverse this procedure to close the door Du...

Page 27: ...ments This prevents excess combustion The secondary air completes combustion and increases efficiency lever in central position between MAX and MIN When the lever is positioned fully to the right Min...

Page 28: ...BANG AGAINST THE LEDGE AT THE BOTTOM OF THE CLOSED FIREPLACE AND BREAK IT CAUTION Do not spray the cleaner onto the painted parts or onto the seals of the door ceramic fibre cord 6 1 2 Ash removal As...

Page 29: ...erial Never clean the refractory walls with a wet cloth or other items as this may mark the walls At most use a dry brush to remove large masses of soot If the Alutec fails to whiten this is not consi...

Page 30: ...MCZ GROUP S p A Via La Croce 8 33074 Vigonovo di Fontanafredda PN ITALY Telephone 39 0434 599599 PBX Fax 39 0434 599598 Internet www mcz it e mail mcz mcz it 8901161300 Rev 0 12 2011...

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