MCZ FORMA WOOD 75 DX-SX Use And Installation Manual

Brand: MCZ

Model: FORMA WOOD 75 DX-SX

Category: Fireplaces

Type: Use And Installation Manual

This manual is also suitable for

8901161300

USE AND

INSTALLATION

MANUAL

FORMA WOOD CLOSED FIREPLACE

Contents

USE AND MAINTENANCE MANUAL

page

INTRODUCTION....................................................................................................................................4

1. WARNINGS AND GUARANTEE TERMS...............................................................................................5

1.1. SAFETY WARNINGS ........................................................................................................................5

1.2. OPERATIONAL WARNINGS ..............................................................................................................5

1.3. GUARANTEE TERMS........................................................................................................................6

1.3.1. Guarantee limits.......................................................................................................................6

1.3.2. Exclusions................................................................................................................................6

1.4. IMPORTANT INFORMATION FOR CORRECT DISPOSAL OF THE PRODUCT IN ACCORDANCE WITH EC

DIRECTIVE 2002/96/EC .............................................................................................................................6

2. INSTALLATION IN COMPLIANCE WITH UNI 10683..........................................................................7

2.1. THE OPERATING ENVIRONMENT .....................................................................................................7

2.2. PRECAUTIONS................................................................................................................................7

2.3. CONNECTING THE EXTERNAL AIR INLET............................................................................................8

2.4. CONNECTING THE FLUE PIPE..........................................................................................................9

2.5. FLUE PIPE......................................................................................................................................9

2.5.1. Flue pipe examples.................................................................................................................10

2.6. CHIMNEY .....................................................................................................................................11

3. DIMENSIONS AND TECHNICAL SPECIFICATIONS..........................................................................12

3.1. Dimensions of the Forma Wood 75 rh-lh (fig. shows lh version)........................................................12

3.2. Dimensions of the Forma Wood 95 rh-lh (fig. shows lh version)........................................................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 (COMFORT AIR NV)....................................................................................17

4.2.2. Forced convection (COMFORT AIR FV) .....................................................................................17

4.3. COUNTERWEIGHT UNLOCKING .....................................................................................................17

4.4. POSITIONING...............................................................................................................................18

4.5. ADJUSTING THE HEIGHT AND LEVEL .............................................................................................19

4.6. EXTERNAL AND INTERNAL AIR INLETS ..........................................................................................20

4.6.1. Combustion air inlet................................................................................................................20

4.6.2. Air inlet for natural ventilation .................................................................................................20

4.6.3. Air inlet for forced ventilation ..................................................................................................20

4.6.3.1. Ducts for the COMFORT AIR kit.........................................................................................20

4.7. FLUE PIPE CONNECTION...............................................................................................................21

4.8. ASSEMBLING THE CLADDING AND REVERSE HOOD ........................................................................21

4.9. CLOSED FIREPLACE INSULATION ..................................................................................................22

4.10. WOOD BEAM INSULATION .........................................................................................................22

4.10.1.

Hood ventilation outlets.

......................................................................................................22

5. OPERATION.....................................................................................................................................23

5.1. WARNINGS PRIOR TO START-UP...................................................................................................23

5.2. OPERATING TEST.........................................................................................................................23

5.2.1. Stages for the first test start-up...............................................................................................24

5.3. CHOICE OF FUEL ..........................................................................................................................24

5.4. FIRST START-UP ..........................................................................................................................25

5.5. FUEL LOADING.............................................................................................................................26

5.6. COMBUSTION CONTROL ...............................................................................................................27

5.7. QUICK RESPONSE.........................................................................................................................27

6. MAINTENANCE AND CLEANING ......................................................................................................28

6.1. CLEANING UNDER THE USER'S RESPONSIBILITY ............................................................................28

FORMA WOOD CLOSED FIREPLACE

Contents

USE AND MAINTENANCE MANUAL

page

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 RESPONSIBILITY OF A SPECIALISED TECHNICIAN .......................................29

6.2.1. Cleaning the flue pipe .............................................................................................................29

FORMA WOOD CLOSED FIREPLACE Chapter 1

USE AND MAINTENANCE MANUAL

page 4

INTRODUCTION

Dear customer,

Thank you for choosing MCZ products and, in

particular, a closed fireplace from the Forma line.

This appliance has been produced through

painstaking design and thorough testing and we are

confident that, when using the appliance, you will

value the high quality that it offers. Our aim is to

combine technology with simple use and, first and

foremost, safety.

For optimal operation of the closed fireplace

and to benefit fully from the heat and sense of

well-being distributed throughout your home,

we advise you to read this manual carefully

before starting the appliance up for the first

time. In the event of faults or if in doubt please

contact your retailer who will provide all the

necessary assistance.

Please remember that this closed fireplace MUST

NOT be used by children. Children must always be

kept at a safe distance!

Document revisions

In order to improve the product and to update this

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.

Care of the manual

 Take care of this manual and keep it in a place

where it can be easily and quickly accessed.

 Should you misplace or destroy the manual, or

should it come to be in poor condition, ask your

retailer or the Manufacturer for another copy,

specifying the product identification data.

How to consult the manual

 Any vital topics or those requiring special

attention are printed in “bold text”.



“Italic text”

is used for any additional

explanations.

 NOTE: the “NOTE” provides the reader with

additional information about the topic.

These symbols indicate specific

messages found in this manual

CAUTION!

This warning symbol indicates that you

should read carefully and understand the

message it refers to. Failure to observe

the instructions given may seriously

damage the closed fireplace and also

endanger the person using it.

INFORMATION:

This symbol is used to highlight the

information deemed important for the

correct functioning of the closed fireplace.

Failure to observe the instructions

provided will jeopardise the use of the

appliance and cause it to function

unsatisfactorily

FORMA WOOD CLOSED FIREPLACE Chapter 1

USE AND MAINTENANCE MANUAL

page 5

1. WARNINGS AND GUARANTEE

TERMS

1.1. SAFETY WARNINGS

 Installation, electrical connection,

functional check and maintenance of this

appliance must only be performed by

qualified or authorised personnel.

 Install the closed fireplace in compliance

with the applicable regulations in force in

the place, region or country.

 This appliance must not be used by anyone

(including children) with limited physical,

sensory or mental skills or with little

experience and knowledge, unless they are

supervised or have been instructed to use

the device by the person in charge of its

safety.

 Only use the fuel recommended by MCZ.

The appliance must not be used as an

incinerator. The use of liquid fuel is strictly

forbidden.

 The instructions provided in this manual must

always be observed to ensure the correct use of

this closed fireplace and of any appliances

connected to it as well as to avoid any accidents.

 The user (or anybody preparing to operate the

closed fireplace) must read and fully understand

the contents of this instruction manual before

beginning any operation.

 The closed fireplace must only be used for its

intended purpose. Any other use is considered

incorrect and therefore dangerous.

 Assess the static conditions of the surface on

which the weight of the closed fireplace will bear

and provide suitable insulation if it is made of

flammable material (e.g. wood, fitted carpet,

plastic).

 Avoid installing the appliance in rooms containing

type B gas appliances or hoods with or without

an extractor fan, heat pumps, or collective

ventilation ducts.

 Avoid having several operational flue ducts in the

room or in the proximity of a stair well and make

sure that there are no appliances in adjacent

communicating rooms, the concurrent use of

which causes a vacuum in one of the two rooms.

 The user is fully liable for any incorrect use of the

product. MCZ bears no civil or criminal 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 non-original parts.

 Parts of the surface of the closed fireplace can

get very hot (door, handle, glass). Therefore,

avoid touching these parts without wearing

suitable protective clothing or using appropriate

measures, such as heat protective gloves or

"hands cool" type systems.

 Carefully explain this danger to elderly and

disabled people and, in particular, to all children,

keeping them away from the closed fireplace

while it is in use.

 Incorrect installation or poor maintenance (not

conforming to the instructions provided in this

manual) may cause personal injury, harm to

animals or damage to property. MCZ bears no

civil or criminal liability for incorrect installation or

poor maintenance.

1.2. OPERATIONAL WARNINGS

 Turn off the closed fireplace in the event of a

failure or malfunctioning.

 Keep flammable material at least 150 cm away

from the glass of the fireplace.

 If there is poor draught in the flue pipe (due to

bad weather, poor installation conditions) light

the flame strongly, keeping the door slightly

open. When the door is closed always keep the

damper completely open. Use dry wood in small

pieces. If you continue to experience problems

with the combustion call a qualified technician.

 Install the closed fireplace in rooms which are

suitably protected against fire hazards and

equipped with all utilities, including power

supplies (air, water and electricity) and smoke

outlets.

 Do not light the fire with flammable substances.

INFORMATION:

 In case of any problems please contact your

retailer or MCZ's qualified, authorised personnel.

If repairs are necessary, request original spare

parts.

 Check and clean the smoke outlet pipe regularly

in accordance with the provisions of the

applicable regulations in the country of

installation

 Keep this instruction manual in a safe place as it

should accompany the closed fireplace along its

entire life cycle. If the closed fireplace is sold or

transferred to another user always ensure that

the manual accompanies the product.

 If this manual is destroyed request a copy from

your authorised retailer or from MCZ.

FORMA WOOD CLOSED FIREPLACE Chapter 1

USE AND MAINTENANCE MANUAL

page 6

1.3. GUARANTEE TERMS

MCZ guarantees the product, with the exception of

parts subject to normal wear specified below, for

two years from the date of purchase, provided that

proof of purchase is supplied in a document specifying

the name of the retailer and the date the sale was

made and that the completed guarantee certificate

was sent within 8 days of said purchase. The product

must also be installed and tested by a specialised

fitter and in accordance with the detailed instructions

provided in the instruction manual that accompanies

the product.

The guarantee covers the replacement or free repair

of parts recognised as being faulty at source

due to manufacturing defects.

1.3.1. Guarantee limits

The aforementioned guarantee does not cover

electrical parts for which the guarantee period is one

year from the date of purchase of the product, proven

as indicated above. The guarantee does not cover

parts subject to normal wear, such as seals, glazing

and all removable parts of the combustion

chamber.

Parts replaced will be guaranteed for the remaining

guarantee cover period, starting from the original

date of purchase of the product.

The glazing, in particular, is

guaranteed until an authorised MCZ

fitter certifies that it was perfectly

intact at the time that installation

was completed.

1.3.2. Exclusions

The guarantee does not cover any parts found

to be faulty due to negligence, inappropriate

use, incorrect maintenance or installation not

performed in compliance with MCZ's

instructions (see relevant chapters in this use

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 instruction manual

and, specifically, the warnings regarding installation,

use and maintenance of the device.

Please contact your retailer and/ or local importer in

the event of product failure.

Damage caused by transport and/ or handling are not

covered by the guarantee.

Refer solely to the manual provided for information

about product installation and use.

The guarantee does not cover damage caused by

tampering with the device, atmospheric agents,

natural disasters, electrical discharges, fires or faults

in the electrical and plumbing system. The guarantee

also excludes damage caused by failure to perform

maintenance or by maintenance performed incorrectly

and not in compliance with the Manufacturer's

instructions.

SERVICE CALL

Service calls must be made to the

retailer, who will forward the call to

the MCZ technical support

department.

MCZ cannot be held liable if the

product and any of its accessories are

used incorrectly or modified without

authorisation.

Only original MCZ spare parts must be

used for replacements.

1.4. IMPORTANT INFORMATION FOR

CORRECT DISPOSAL OF THE PRODUCT

IN ACCORDANCE WITH EC DIRECTIVE

2002/96/EC

At the end of its working life, the product must not be

disposed of as urban waste.

It must be taken to a special local authority

differentiated waste collection centre or to a dealer

providing this service.

Disposing of a appliance separately avoids possible

negative consequences for the environment and

health deriving from inappropriate disposal and

enables the constituent materials to be recovered to

obtain significant savings in energy and resources.

As a reminder of the need to dispose of appliances

separately, the product is marked with a crossed-out

wheeled dustbin.

FORMA WOOD CLOSED FIREPLACE Chapter 2

USE AND MAINTENANCE MANUAL

page 7

2. INSTALLATION IN COMPLIANCE WITH UNI

10683

2.1. THE OPERATING ENVIRONMENT

For the correct functioning and an even distribution of heat, the closed

fireplace should be positioned where the air required for combustion

can flow in (at least 60 m

/h must be available) in accordance with the

installation instructions and the applicable standards in force in the

country of installation.

The volume of the room should be no less than 60 m

Air should enter through permanent apertures made in the walls (near

the closed fireplace) that lead to the outside. These should have a

minimum cross-section of 360 cm

These apertures (air inlets) must be made so as not to be obstructed in

any way.

Air may also be taken from rooms adjoining the one to be ventilated,

provided they are equipped with an external air inlet and are not used

as bedrooms or bathrooms. These must not be rooms 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.

 Installation of the closed fireplace is not

permitted in bedrooms, bathrooms, shower

rooms or in any room in which another heating

appliance is installed without an independent air

inflow (fireplace, stove etc.).

 It is forbidden to position the closed fireplace in

rooms with an explosive atmosphere.

 The floor of the room in which the closed

fireplace is installed must be suitably sized to

withstand the weight of the fireplace.

 If the floor is wooden lay the floor guard down

in compliance with the applicable standards in

force in the country of installation.

 If the walls are not flammable position the

closed fireplace with a minimum distance of 5

cm at the back.

2.2. PRECAUTIONS

The closed fireplace must be installed in a suitable place to allow

normal opening and regular maintenance.

The room in which the fireplace is installed must:

 offer the correct environmental conditions for operation

 be equipped with a 230V 50 Hz electrical power supply

 offer a suitable smoke outlet system

 be fitted with external ventilation

 be fitted with an EC-compliant earthing system

FORMA WOOD CLOSED FIREPLACE Chapter 2

USE AND MAINTENANCE MANUAL

page 8

IMPORTANT!

 The closed fireplace must be installed and

assembled by qualified staff.

 The closed fireplace must be connected to a flue

pipe or a vertical duct that can discharge the

smoke at the highest point of the home.

 The closed fireplace must be connected to a flue

pipe or internal or external vertical duct, in

accordance with the applicable standards in force.

 The smoke does, however, result from combustion

of wood essences and may therefore soil walls if

released in contact with or close to them.

 Before positioning the closed fireplace drill the

hole for the external air inlet

2.3. CONNECTING THE EXTERNAL AIR INLET

The room in which the closed fireplace is installed MUST provide at least

as much airflow as is required for regular combustion of the appliance and

for ventilation of the room. This can be achieved via permanent apertures

made in the walls of the room to be ventilated, leading to the outside, or

rooms aired in accordance with UNI 10683.

To achieve this drill a through hole with a minimum free cross-section of

360 cm² 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.

The air inlet should also:

 communicate directly with the installation setting

 be designed with a grille, insect-proof metal mesh or suitable

protection, provided this does not reduce the minimum cross-

section.

 be positioned in such a way that it cannot become obstructed

 if ducting is involved (up to 3.5 linear metres) increase the cross-

section by about 5%. For longer ducting increase the cross-section

by 15%.

Remember that one side of the ventilation grilles always shows

the working cross-section in cm

. When choosing the grille and

hole size, check that the working cross-section of the grille is

larger or the same as the cross-section required by MCZ for

operation of the appliance.

It is not obligatory to connect the air inlet directly to the closed

fireplace but the aforementioned cross-section must ensure

that approximately 50 m³/h of air is provided. See standard

UNI 10683 REV.

IMPORTANT!

The flow of air may also be taken from an adjoining

room to the one in which the closed fireplace is

installed, provided that the air can flow freely through

permanent apertures in contact with the outside. Avoid

air inlets connected to thermal power plants, garages,

kitchens or bathrooms.

FORMA WOOD CLOSED FIREPLACE Chapter 2

USE AND MAINTENANCE MANUAL

page 9

2.4. CONNECTING THE FLUE PIPE

The flue pipe connection is extremely important and should be

performed carefully and attentively. If there are any faults or

construction errors it is quite difficult to lay the system without

damaging the reverse hood. The connection is also located in an area

of the fireplace where temperatures reach very high values. It is

therefore important to use materials able to withstand heat and the

acidity of the smoke produced by combustion.

Before beginning work, pay attention to the following points:

 The connection must have a maximum inclination of 45° to

prevent excessive build up of condensation produced in the

initial start-up stages of the closed fireplace and/ or excessive

adhesion of creosote. This also prevents smoke evacuation

from slowing down.

 The unions must be made of metal and suitable for the

specific operating conditions of the product and marked

EC (EN1856-2). The use of flexible and extending metal

pipes is not permitted.

 The elements of the connection must be perfectly sealed.

 The connection to the flue pipe must be neither too long (to

prevent 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 and to the

decorative reverse hood.

IMPORTANT!

Any increase in the connecting section must be made

directly above the hood of the closed fireplace and

not along the flue pipe.

2.5. FLUE PIPE

The flue pipe is a vital element for the discharge of smoke and should

therefore:

 be waterproof and thermally insulated.

 be made of suitable heat-proof materials that are resistant to

the effects of combustion products and any possible

condensation.

 have a vertical arrangement with deviations from the axis of

no more than 45° and without kinks.

 must be suitable for the specific operating conditions of the

product and marked EC (EN1856-1, EN1443).

 must be suitably sized to accommodate the draught/smoke

disposal requirements necessary for the correct functioning of

the product (EN13384-1).

 have an internal section which is preferably circular.

 be cleaned if pre-existing and has operated beforehand.

The flue pipe is vital for the correct functioning and

safety of your closed fireplace.

Example of closed fireplace connection

Typical diagram of a correctly laid flue pipe

with a chamber including a sealed hatch to

collect and remove solid materials produced

during combustion positioned at the foot of

the external rising section.

Hood grille

Smoke

connection

Ceramic fibre

insulation

Flue pipe

45° max

FORMA WOOD CLOSED FIREPLACE Chapter 2

USE AND MAINTENANCE MANUAL

page 10

2.5.1. Flue pipe examples

For square- or rectangular-section flue pipes, the internal corners

should be rounded with a radius of no less than 20mm. For the

rectangular cross-section, the ratio between the internal dimensions

should be ≤1.5.

The sections/lengths of the flue pipe shown in the technical data table

are guidelines for correct installation. Any alternative configurations

must be suitably sized in accordance with EN13384-1.

You are advised to fit a chamber to the smoke duct to collect solid

materials located beneath the mouth of the smoke duct. This chamber

should be easy to open and 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 an

authorised MCZ fitter perform a prior survey and

instrumental measurement of the performance of the flue

pipe (measurement with micro pressure gauge)

MCZ s.p.a. cannot be held liable for closed fireplace

malfunctions caused by the use of a poorly sized flue pipe

installed in a way that does not comply with the requisites

listed herein.

AISI 316 steel flue pipe

with double chamber

insulated with ceramic fibre

or similar, resistant to

400 °C.

EXCELLENT

Refractory flue pipe with

insulated double chamber and

external concrete jacket

lightened with honeycomb

material such as clay.

GOOD

Traditional square-section

clay flue pipe with empty

insulating inserts.

GOOD

Avoid flue pipes with rectangular

cross-sections where the larger

side is twice the smaller one,

such as 20x40 or 15x30.

MEDIOCRE

FORMA WOOD CLOSED FIREPLACE Chapter 2

USE AND MAINTENANCE MANUAL

page 11

2.6. CHIMNEY

If the chimney is underestimated it can often prevent the "chimney

system" from operating correctly.

The draught of the flue pipe also depends on its chimney.

It is therefore vital that, if the chimney has been hand-crafted, the

development of the four relief sections correspond to more than

twice the internal cross-section of the flue pipe.

As the chimney must always be higher than the ridge of the

roof it will be exposed to wind in all directions. Therefore, an

industrial-type chimney is recommended.

The chimney must:

 Have an inner section equal to that of the flue.

 Have a working outlet section of at least double that of the

inner section of the flue pipe.

 Be built in such a way as to prevent rain, 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 form.

In the case of paired flue pipes, the solid

combustibility or upper storey chimney shall be at

least 50 cm higher than the others in order to avoid

the transfer of pressure from one paired pipe to the

other.

There must be no obstacles present within a range of

10 linear metres of the chimney. This includes walls,

pitches and trees. If obstacles are present raise the

chimney at least 1 metre above the obstacle and, if

there are other chimneys nearby, space them at least

2 metres apart. In all cases the chimney must

protrude from the ridge of the roof by at least 1 linear

metre.

Industrial chimney

with prefabricated

stacked elements,

allows excellent

smoke discharge.

Traditional hand-

crafted chimney.

The correct outlet

cross-section should

be at least twice the

internal cross-

section of the flue

pipe, ideally 2.5

times its size.

Steel flue pipe

chimney with internal

smoke-deflector cone.

FORMA WOOD CLOSED FIREPLACE Chapter 3

USE AND MAINTENANCE MANUAL

page 12

3. DIMENSIONS AND TECHNICAL SPECIFICATIONS

3.1. Dimensions of the Forma Wood 75 rh-lh (fig. shows lh version)

428

Ø244

830

750 rivestimento

705 porta

Min.33

max.60

455 porta

583

503

rivestimento

Ø99

414

455 door

705

door

503 cladding

750 claddin

580 cladding

557 door

Min. 33

max. 60

FORMA WOOD CLOSED FIREPLACE Chapter 3

USE AND MAINTENANCE MANUAL

page 13

3.2. Dimensions of the Forma Wood 95 rh-lh (fig. shows lh version)

509

Ø99

455 porta

583

503

rivestimento

1025

900 porta

945 rivestimento

Min.33

max.60

Ø244

525

900 door

455 door

503 cladding

945 cladding

467 door

Min. 33

max. 60

488

cladding

FORMA WOOD CLOSED FIREPLACE Chapter 3

USE AND MAINTENANCE MANUAL

page 14

3.3. Dimensions of the Forma Wood T95

1067

1025

(porta)

1026

(rivestimento)

MIN 33-MAX 60

(

)

514,5 514,5

Ø244

467

porta

503

rivestimento

583

513

Ø99

(door)

(cladding)

cladding

door

(cladding)

FORMA WOOD CLOSED FIREPLACE Chapter 3

USE AND MAINTENANCE MANUAL

page 15

3.4. Technical specifications

Technical specifications FORMA WOOD 75 RH-LH

Fuel type Wood

Hourly consumption 3.2 kg/h

(load 2.4 kg in 47 mins)

Nominal heat output kW 10.6 Kcal 9116

Efficiency 78,6%

Heatable volume * 228/40-260/35- 304/30

Recommended draught 12 Pa / 0,12 mbar

Smoke temperature 270 °C

Particulate 73 mg/Nm

(13% O

)

49 mg/MJ

Smoke outlet diameter 25 cm

Combustion chamber dimensions 60x36 h57

Net weight 300 Kg

External combustion air inlet cm² 100

CO emission in the smoke (13%O

) 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 fuel used

Technical specifications FORMA WOOD 95 RH-LH/T95

Fuel type Wood

Hourly consumption 3.4 kg/h

(load 2.6 kg in 47 mins)

Nominal heat output kW 12.3 Kcal 10578

Efficiency 78,6%

Heatable volume * 264/40-302/35- 353/30

Recommended draught 12 Pa / 0.12 mbar

Smoke temperature 280 °C

Particulate 73 mg/Nm

(13% O

)

49 mg/MJ

Smoke outlet diameter 25 cm

Combustion chamber dimensions 80x36 h48

Net weight 350 Kg

External combustion air inlet cm² 100

CO emission in the smoke (13%O

) 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 fuel used

FORMA WOOD CLOSED FIREPLACE Chapter 4

USE AND MAINTENANCE MANUAL

page 16

4. INSTALLATION AND ASSEMBLY

IMPORTANT!

The closed fireplace must be positioned and

connected to the smoke duct only by a qualified

technician so that all local and national regulations

are met.

In all cases, the appliance must be installed in

accordance with standard UNI 10683.

When you unwrap the closed fireplace make sure that every part is

in perfect working order and check for any damage caused

during 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 the internal elements making

up the combustion chamber. However, we recommend that each

part be correctly repositioned by qualified staff.

MCZ bears no responsibility for failure to adhere to the above

warning.

4.1. PREPARATION AND UNPACKING

Open the packaging, remove the closed fireplace from the pallet and

position it in the chosen place, taking care to ensure that it complies

with the specifications.

The closed fireplace must always be handled

VERTICALLY and only using trolleys. Do not drag the

unit as this may damage the support feet.

Example of closed fireplace packaging

FORMA WOOD CLOSED FIREPLACE Chapter 4

USE AND MAINTENANCE MANUAL

page 17

Remove the closed fireplace from the pallet as follows:

 Remove plate A by unscrewing the two screws

 Remove the two screws from bracket B

Insert the feet or wheels (supplied), by raising them and inclining them

slightly to allow you to extract them. You will then be able to remove

the 4 locking “B” brackets.

Pay particular attention to the door and its glazing to protect them from

mechanical knocks which would compromise their proper working

order.

In all cases, appliances must be handled with care. If possible, unwrap

the closed fireplace near the chosen place of installation.

The materials making up the packaging are neither toxic nor harmful

and, as such, require no special disposal measures.

Storage, disposal and any recycling is the responsibility 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 to distribute hot air via NATURAL

CONVECTION (COMFORT AIR NV) or FORCED CONVECTION

(COMFORT AIR FV) using a forced ventilation kit.

4.2.1. Natural convection (COMFORT AIR NV)

In natural ventilation air enters the bottom of the closed fireplace

naturally.

4.2.2. Forced convection (COMFORT AIR FV)

If you adopt this system purchase the Comfort Basic Air Kit or optional

Comfort Air Slim kit and follow the instructions provided with each kit.

4.3. COUNTERWEIGHT UNLOCKING

The closed fireplace is supplied with the sliding counterweights locked

to prevent dangerous knocks during transport and positioning that may

damage the parts involved in the sliding action, the door and the glass-

ceramic.

To unlock the counterweight and then the door, remove the screws as

shown in

figure 1

from both sides of the closed fireplace in

correspondence with the arrow stickers positioned on both sides.

Figure 1 – Counterweight locking screws

FORMA WOOD CLOSED FIREPLACE Chapter 4

USE AND MAINTENANCE MANUAL

page 18

Remove the counterweight fastening screws only

after positioning the closed fireplace and to check

that the glass is undamaged.

DO NOT MOVE OR RELOCATE THE CLOSED

FIREPLACE WITHOUT THE COUNTERWEIGHT

FASTENING SCREWS.

Damage caused due to failure to observe this

regulation is the responsibility of the customer of

those using the closed fireplace.

4.4. POSITIONING

The FORMA WOOD closed fireplace can be positioned either in a corner

or on a wall. MCZ cladding can be used to personalise the fireplace or

built on site with materials able to withstand high temperatures.

The closed fireplaces are self-bearing units that simplify installation and

do not require any additional support.

MCZ provides four rotating wheels with the closed fireplace 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 is stable on the floor.

To do this, adjust the four feet already fitted on the closed fireplace.

Always assess the static conditions of the surface that will bear

the weight of the closed fireplace and always leave a minimum

5 cm air gap between the fireplace and the walls.

Dry fit the fire plane of the cladding, leaving an opening of 1 cm

for the insulation.

(Figure 2)

If the appliance is installed near to flammable material adopt

some minimal safety measures (Figure 4):

 A = 100 mm (distance from the side and rear walls)

 B = 50 mm (insulating material)

 C = 50 mm (height of the floor)

If the closed fireplace is positioned above a floor or

near to flammable walls we recommend that you use

suitable insulation.

The hot air outlets must be positioned at least

300 mm away from other materials (e.g. curtains).

Figure 2- Distances of the unit from walls and

cladding

Figure 3 – Wheels and feet

min

Figure 4 – Distances from flammable materials

FORMA WOOD CLOSED FIREPLACE Chapter 4

USE AND MAINTENANCE MANUAL

page 19

4.5. ADJUSTING THE HEIGHT AND LEVEL

The Forma Wood closed fireplace is fitted with adjustment feet that

create the right distance between the unit and the floor and adjust the

level of the fire plane of the closed fireplace by approximately 10 cm.

Should you wish to raise the closed fireplace more than 10 cm you

must create a masonry pedestal on which to rest the product. Do not

remove the feet under any circumstances as these are

essential for levelling the appliance. 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 the fire door to slide

correctly.

If the floor is made from flammable material, the

lower part of the closed fireplace (C) must

positioned at least 5 cm away from the floor (

figure

If the closed fireplace is not level there is a risk that

the door may not close perfectly and the internal

counterweights may bang against the structure

making a noise each time the door is raised and

lowered.

CHECK THE SLIDING ACTION OF THE DOOR A FEW

TIMES BEFORE SEALING THE CLOSED FIREPLACE

WITH THE CLADDING.

We recommend that you use the wheels (supplied) when moving the

closed fireplace. Only the feet are needed to adjust the level.

Figure 5 – Safety measures

FORMA WOOD CLOSED FIREPLACE Chapter 4

USE AND MAINTENANCE MANUAL

page 20

4.6. EXTERNAL AND INTERNAL AIR INLETS

4.6.1. Combustion air inlet

The FORMA WOOD fireplace is equipped with a rear inlet hole for the

air required for combustion.

Connect100 diameter with flanges and flexible hose (fig. 6) to the

external or internal grilles in the room in which the appliance is installed

so that the route is separated from the natural or forced convection air.

NEVER CLOSE THE COMBUSTION AIR INLET HOLE.

4.6.2. Air inlet for natural ventilation

If the closed fireplace is installed with natural ventilation (in other

words without an electric fan) make a 300 cm²

combustion air inlet

behind the unit so that fresh air always flows in beneath the closed

fireplace.

It is essential to adhere strictly to this arrangement otherwise a lack of

oxygen may jeopardise both combustion and the heat output of the

product.

4.6.3. Air inlet for forced ventilation

4.6.3.1.

Ducts for the COMFORT AIR kit

If the closed 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 a 150 cm²

external air inlet to draw fresh, clean air and

another in the room in which the closed fireplace is installed (also

150 cm²

This mode allows correct mixture of the air in the room in which the

fireplace is installed and helps the structure of the fireplace to cool

down more efficiently.

If this type of connection is not possible you are obliged to include both

air inlets, whether they are directed to the outside or the inside.

Depending on the selection, operating temperatures will be slightly

higher or lower than the average. This will not jeopardise the correct

operation of the product.

Remember that:

 All external air inlets must be equipped with anti-insect

protection and closing locks that can be operated from the

outside.

 The air inlet section is considered to be clear and therefore

you must consider the area of any dimensions (nets etc.)

 The filters or nets must be cleaned regularly to ensure that air

can pass freely.

 Do not obstruct the air inlets for any reason if the

closed fireplace or ventilation kit is operating.

Figure 6 – Combustion air inlets.

COMBUSTION

AIR INLET

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MCZ FORMA WOOD 75 DX-SX Use And Installation Manual

Brand: MCZ

Model: FORMA WOOD 75 DX-SX

Category: Fireplaces

Type: Use And Installation Manual

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