MCZ PURO 115 User Manual

INSTALLATION AND USE MANUAL

Contents

page

INTRODUCTION....................................................................................................................................3

1. WARNINGS AND WARRANTY CONDITIONS .....................................................................................4

1.1. SAFETY WARNINGS ........................................................................................................................4

1.2. OPERATING WARNINGS..................................................................................................................4

1.3. WARRANTY CONDITIONS................................................................................................................4

1.3.1. Restrictions..............................................................................................................................5

1.3.2. Exclusions................................................................................................................................5

2. INSTALLATION IN ACCORDANCE WITH UNI 10683.........................................................................6

2.1. OPERATING AREA...........................................................................................................................6

2.2. PRECAUTIONS................................................................................................................................6

2.3. CONNECTION TO THE EXTERNAL AIR INTAKE..................................................................................7

2.4. CONNECTION TO THE FLUE PIPE.....................................................................................................8

2.5. FLUE PIPE......................................................................................................................................8

2.5.1. Examples of flue pipes ..............................................................................................................9

2.6. COWL ..........................................................................................................................................10

3. DIMENSIONS AND TECHNICAL SPECIFICATIONS..........................................................................11

4. INSTALLATION AND ASSEMBLY......................................................................................................14

4.1. PREPARATION AND UNPACKING....................................................................................................14

4.2. SELECTION OF OPERATING MODE................................................................................................. 14

4.2.1. Natural convection (VN)..........................................................................................................15

4.2.2. Forced convection (VF) ...........................................................................................................15

4.3. RELEASE OF COUNTERWEIGHTS ...................................................................................................15

4.4. POSITIONING...............................................................................................................................15

4.5. ADJUSTMENT OF HEIGHT AND BALANCING.................................................................................... 16

4.6. EXTERNAL AND INTERNAL AIR INTAKE..........................................................................................17

4.6.1. Combustion air inlet................................................................................................................17

4.6.2. Air inlet for natural ventilation .................................................................................................17

4.6.3. Air inlet for forced ventilation ..................................................................................................17

4.6.3.1. Ducts for kit COMFORT AIR ..............................................................................................17

4.7. CONNECTION TO THE FLUE PIPE...................................................................................................19

4.8. INSTALLATION OF CLADDING AND HOOD LINER ............................................................................19

4.9. INSULATING A WOODEN BEAM .....................................................................................................19

4.10. INSULATION OF FIREPLACE STOVE ............................................................................................19

4.10.1.

Hood ventilation nozzles.

.....................................................................................................20

5. COMFORT AIR KIT– NATURAL VENTILATION AND FORCED VENTILATION...................................21

5.1.1. Components of natural ventilation kit with and without illumination ...........................................21

5.1.2. Components of forced ventilation kit with and without illumination ............................................21

5.2. ACCESSORIES ..............................................................................................................................22

5.2.1. Air outlets of natural ventilation kit with and without illumination ..............................................22

5.2.2. Air outlets for forced ventilation kit ..........................................................................................23

5.3. INSTALLATION OF THE COMFORT AIR KIT.....................................................................................24

5.3.1. Variation for air outlet with container .......................................................................................25

5.3.2. Variation for air outlet with illumination .................................................................................... 25

5.3.2.1. Maintenance of air outlet with illumination .........................................................................26

5.4. CONTROL UNIT ............................................................................................................................27

5.4.1. Composition of control unit .....................................................................................................27

5.4.2. Positioning of the control unit..................................................................................................27

5.5. GENERAL INFORMATION ON THE CONTROL UNIT ..........................................................................28

5.5.1. On/off ...................................................................................................................................28

5.5.2. Operation ..............................................................................................................................28

5.5.3. Safety function.......................................................................................................................29

5.5.4. Light on (if present) ...............................................................................................................29

INSTALLATION AND USE MANUAL

Contents

page

Replacing the fuse of the control unit.......................................................................................29

5.5.5.

5.6. INSTALLATION OF TEMPERATURE PROBE .....................................................................................30

5.7. DOOR OPEN SWITCH....................................................................................................................30

5.8. CONNECTIONS .............................................................................................................................31

5.9. REPLACING THE FAN ....................................................................................................................32

6. OPERATION.....................................................................................................................................33

6.1. PRE-LIGHTING WARNINGS............................................................................................................33

6.2. OPERATING TEST.........................................................................................................................33

6.2.1. Phases for first test lighting.....................................................................................................34

6.3. CHOICE OF FUEL ..........................................................................................................................34

6.4. FIRST LIGHTING ..........................................................................................................................35

6.5. LOADING THE FUEL......................................................................................................................36

6.6. CONTROL OF COMBUSTION ..........................................................................................................36

6.7. EMERGENCY SITUATIONS .............................................................................................................37

7. MAINTENANCE AND CLEANING ......................................................................................................38

7.1. CLEANING TO BE PERFORMED BY THE USER..................................................................................38

7.1.1. Cleaning the glass ..................................................................................................................38

7.1.2. Cleaning out the ashes ...........................................................................................................38

7.1.3. Cleaning the refractory material walls (ALUTEC®) .....................................................................38

7.1.4. Lubrication and routine maintenance of the extensible guides ....................................................39

7.1.5. Maintenance of kit VF (if installed) ...........................................................................................39

7.1.5.1. Electric fan......................................................................................................................39

7.1.5.2. Control unit COMFORT AIR...............................................................................................40

7.1.5.3. Wiring.............................................................................................................................40

7.2. CLEANING TO BE DEALT WITH BY SPECIALIZED TECHNICIAN ......................................................... 40

7.2.1. Cleaning flue pipe...................................................................................................................40

INSTALLATION AND USE MANUAL

INTRODUCTION

Dear customer, Thank you for choosing an MCZ product, specifically a

fireplace stove of the Forma line. We are sure that, with use, you will appreciate the

quality of an attentively designed and tested product. Our goal is to combine technology with easy use and, above all, safety.

For best fireplace stove operations and to fully enjoy the heat and sense of well being it will spread throughout your home, we suggest you carefully read this booklet before use. Please contact your dealer for full assistance in resolving any doubts or problems.

Congratulations on your choice and remember, the

fireplace stove MUST NEVER be used by children

who should always be kept at a safe distance!

Revisions to the publication

In order to improve the product, the Manufacturer reserves the right to modify and update this publication without prior notice.

Reproduction, even partial, of this manual without the Manufacturer's authorisation is prohibited.

Manual preservation

• Please take care of this manual and keep it in a

place that can be quickly and easily reached.

• If this manual should be lost or destroyed, or if it

is in poor condition, ask for a copy from your retailer or directly from the manufacturer, providing product identification data.

How to read the manual

• An essential item or one that requires specific

attention is published in “bold”.

“Italics"

•

• NOTE: the “NOTE” provides the reader with

additional information on the subject.

are used for any additional clarification.

Chapter 1

page

These symbols signal specific messages in this booklet

WARNING:

This warning symbol found in various points in this manual indicates that the user should carefully read and understand

the message to which it refers since

neglect to follow these instructions could cause serious fireplace stove damage or injury to the user.

INFORMATION:

This symbol intends to emphasise

important information for good fireplace stove operations. Failure to observe these instructions could jeopardise product use and operations may be unsatisfactory

INSTALLATION AND USE MANUAL

1. WARNINGS AND WARRANTY CONDITIONS

these cases.

1.2. OPERATING WARNINGS

Chapter 1

page

1.1. SAFETY WARNINGS

• Installation of the stove, electrical

connections, checking its operation, and maintenance are all tasks which should be carried out by qualified and authorised personnel.

• Install the fireplace stove according to

correct local, regional or state regulations.

• For correct use of the fireplace stove and

accessories, and to prevent accidents, always follow the instructions in this booklet.

• Before beginning any operation, anyone who

uses the stove must read and understand the entire contents of this instruction booklet.

• The fireplace stove must be used only for its

intended purpose. Any other use is considered improper and therefore hazardous.

• Check the conditions of the surface that will

support the weight of the stove. If it is made of flammable material such as wood, carpet, or plastic, provide suitable insulation.

• Avoid installation in rooms with B type gas

devices, hoods with or without exhaust, heat pumps, collective ventilation conduits.

• Do not install several flue pipes in one room, and

avoid having a stairwell in the vicinity. Check that in adjacent connected room there are not any units whose simultaneous use would create negative pressure in one of the two rooms.

• The user is fully liable for improper product use,

releasing MCZ from any civil or penal liabilities.

• Any tampering with the fireplace stove, or use of

non-original spare parts, may be hazardous to the user and releases MCZ from any civil or penal liability.

• Parts of the surfaces of the fireplace stove are

very hot (door, handle, glass). Therefore, avoid direct contact with these parts unless wearing protective clothing or specific means such as, for example, heat protective gloves or "cold" activation devices.

• Carefully explain this hazard to elderly people,

disabled people and particularly to all children, keeping them away from the fireplace stove while it is in operation.

• Incorrect installation or poor maintenance (not

compliant with the provisions of this manual) may cause damages to persons, animals or property. MCZ is not civilly or criminally liable in

• Turn off the fireplaces stove in the event of faults

or poor operations.

• Never place flammable materials closer than 150

cm to the fireplace stove.

• If the chimney flue draught is poor (due to bad

weather or improper installation), start the fire decisively while keeping the door slightly ajar. When you close the door, keep the air register completely open. Use small pieces of dry wood. If combustion problems continue, please contact a specialized technician.

• Install the fireplace stove in a location which is

suitable for fire fighting, and equipped with all services such as air, water and electricity supply and smoke discharge.

• Do not light the fire with flammable materials.

• To clean the appliance's chimney, remove the

smoke deflector. To remove it correctly, lift the front and at the same time slide it forward in order to free it from rear support.

INFORMATION:

• For any problem, please contact your dealer or

MCZ qualified and authorised personnel and always request original spare parts for repairs.

• Only use the fuel stated by MCZ.

• Check and periodically clean the smoke exhaust

stack as foreseen by current regulations in the country of installation.

• If there is a fire in the flue pipe, keep the door of

the fireplace stove and the combustion air register closed at all times. Request assistance from the competent authorities.

• Carefully conserve the instruction booklet. It

must remain with the fireplace stove for its entire life cycle. If the stove is sold or transferred to another user, make sure the manual accompanies the product.

• If lost, please request a copy from your dealer or

from MCZ.

1.3. WARRANTY CONDITIONS

MCZ guarantees the product, except for the elements subject to normal wear listed below, for

two years from the date of purchase proven by a document that indicates the dealer's name and date of sale, if the completed warranty certificate was returned within 8 days and if the product was installed and inspected by a specialised installation

INSTALLATION AND USE MANUAL

technician and according to the detailed instructions indicated in the instruction manual supplied with the product.

The warranty includes the free replacement or repair

of parts recognised as factory defective.

1.3.1. Restrictions

The above guarantee does not cover components relating to electrical parts, on which the guarantee period is 1 year from the purchase of the product, documented as specified above. The warranty does not cover parts subject to normal wear such as:

gaskets, glass, and all removable fire box parts.

Replaced parts will be guaranteed for the remaining warranty period from the date of product purchase.

Specifically, glass is guaranteed from the moment the MCZ installation technician certifies its integrity when installation is completed.

Chapter 1

page

authorisation.

Only original MCZ spare parts must be

used for all replacements.

1.3.2. Exclusions

The warranty does not cover any part that may be defective due to negligence or careless use, incorrect maintenance, installation non compliant with that specified by MCZ (see relevant chapters in this manual).

MCZ refuses to accept any responsibility for any damage which may be caused, directly or indirectly, by persons, animals or things as a result of the failure to observe all the provisions set forth in the instruction booklet, especially those concerning warnings on the subject of installation, use and maintenance of the appliance.

In the event of product inefficiency, please contact your dealer and/or area importer.

Damages caused by transport and handling are not covered by the warranty.

Exclusively refer to the supplied manual for product installation and use.

The warranty is null and void in the event of damage due to tampering, weather, natural calamities, lightening, fire, defective electrical and hydraulic systems and the lack or incorrect maintenance as per the manufacturer's instructions.

SERVICE REQUESTS Service requests must be addressed

to the dealer who shall forward the request to MCZ technical assistance.

MCZ is not liable in the event the product and any other accessory is improperly used or modified without

INSTALLATION AND USE MANUAL

2. INSTALLATION IN ACCORDANCE WITH UNI 10683

2.1. OPERATING AREA

For good operations and good heat distribution, the fireplace stove should be positioned in a place where the air required for combustion can flow (at least 60 m standards and current regulations in the country of installation.

The room volume must not be less than 60 m

Air must enter through permanent apertures on the walls (near the fireplace stove) that open outdoors with a minimum section of 360 cm

These apertures (air vents) must be made so as not to be obstructed in any way.

Air can also be taken from adjacent rooms as long as these are equipped with outdoor air vents and not bedrooms or bathrooms or rooms where fire hazards do not exist such as garages, wood sheds, flammable material warehouses, strictly observing the provisions of current regulations.

• Fireplace stoves may not be installed in

bedrooms, bathrooms and where another heating device is installed without autonomous air flow (fireplace, stove, etc.).

• Placing the fireplace stove in explosive

environments is prohibited.

• The floor of the room where the fireplace stove

is to be installed must be strong enough to support its weight.

• In the event of wood floors, install a protective

covering in accordance with current regulations in the country of installation.

• If walls are not flammable, install the fireplace

stove at least 5 cm from the walls.

/h must be available) according to installation

Chapter 2

page

2.2. PRECAUTIONS

The fireplace stove must be installed in a suitable surface that permits routine opening and maintenance operations.

The room must be:

• suitable for room operating conditions

• equipped with power supply 230V 50 Hz (EN73-23)

• equipped with an adequate smoke exhaust system

• equipped with outdoor ventilation

• provided with an earth connection complying with CEI 64-8

INSTALLATION AND USE MANUAL

IMPORTANT!

• The fireplace stove must be installed and

assembled by qualified personnel.

• The fireplace stove must be connected to a flue

pipe or other vertical smoke stack that can discharge smoke at the highest point of the house.

• The fireplace stove must be connected to a flue

pipe or an internal or external vertical duct conforming to current standards UNI 7129 7131 9615.

• Smoke is generated from burning wood and,

therefore, may dirty adjacent or nearby walls.

• Before positioning the fireplace stove, you must

make a hole for the intake of external air.

2.3. CONNECTION TO THE EXTERNAL AIR INTAKE

Chapter 2

page

The room where the stove is installed must have at least as much air as requested by normal combustion of the equipment and by room ventilation. This may take place through permanent apertures in the room walls that lead directly outdoors or ventilated rooms according to UNI 10683 REV.

For this purpose, drill a hole with minimum 360 cm² free section near the fireplace stove (22 cm diameter or a 20x18cm rectangle), protected by an indoor and outdoor grille.

The air intake must also:

• directly communicate with the installation room

• be protected by a grill, made of metallic anti-insect mesh or a

suitable protection as long as it does not reduce the minimum section.

• be installed so as to avoid obstruction

• for ducts, up to 3.5 linear metres, increase the section by about

5% while increased by 15% for larger measurements.

Remember that the ventilation grills always have a cm

useful section on one side. When selecting the grill and hole dimension, make sure the useful grill section is greater than or equal to the section required by MCZ for product operations.

Connecting the air outlet directly to the fireplace stove is not mandatory but the above mentioned section must guarantee about 50 m³/h of air. See standard UNI 10683 REV.

IMPORTANT! Air flow may also be obtained from a room adjacent

to the installation room as long as this flow is free through permanent apertures that directly communicate with the outdoors; avoid air outlets connecting with heating units, garages, kitchens or bathrooms.

INSTALLATION AND USE MANUAL

2.4. CONNECTION TO THE FLUE PIPE

Chapter 2

page

The connection to the flue pipe is a very important element. The connection must be made with a great deal of care; in the event of erroneous or anomalous construction, it is extremely difficult to remedy without damaging the hood liner. In addition, the connection is made in a part of the stove where temperatures are very high, and for this reason it is important to use materials that are capable of resisting heat and also the acidity of the fumes produced by combustion.

Before beginning work, please note the following:

• The connecting pipe must have a maximum slope of 45

degrees. This is to avoid excessive deposit of condensation produced in the initial phases of lighting the fireplace stove, and/or the excessive accumulation of creosote. It also keeps the release of smoke from being slowed down.

• The connections must be made of stainless steel 316

with a minimum thickness of 10/10, or in aluminised steel, minimum thickness 20/10. It is prohibited to use stainless steel or aluminium hoses as they compromise the safety of the connection and are subject to tears and gaps, causing leakage of smoke.

• The components making up the connecting pipe must be

perfectly sealed.

• The joint to the flue pipe must not be too long (to avoid

obstructions), nor too short (to avoid smoke leakage).

If metal connecting pipes are used, they must be insulated with suitable material such as ceramic fibre matting, to avoid deterioration of the masonry and of the decorative hood liner.

IMPORTANT! Any increase in the section of the connecting pipe

must start immediately above the hood of the fireplace and not along the flue pipe section.

Flue pipe

Hood grille

45° max

Smoke

Ceramic fibre

insulation

Example of fireplace stove connection

2.5. FLUE PIPE

The flue pipe is a fundamental element in discharging smoke and

therefore must have the following requisites:

• It must be waterproof and thermally insulated.

• It must be made with heat resistant materials, resistant to

combustion products and any condensation.

• It must have a vertical slope with axis deviations not over 45°

and without narrowing.

• It must meet the requisites indicated in the technical table for

the internal chimney section and height.

• It must preferably have a circular interior section.

• If pre-existing and previously used, it must be cleaned.

The flue pipe is of primary importance for the correct functioning and safety of your fireplace stove.

Illustration of a correctly constructed flue pipe with a chamber and sealed door for solid combustion product collection and discharge at the foot of the external ascending segment.

INSTALLATION AND USE MANUAL

2.5.1. Examples of flue pipes

AISI 304 stainless steel flue pipe with dual chamber insulated with ceramic wool or equivalent resistant to 400°C.

EXCELLENT

Flue pipe in refractory brick with insulated double wall and external coat of cement mix lightened with honeycomb material such as clay.

GOOD

Square or rectangular section flue pipes must have rounded internal corners with radius not less than 20mm. For the rectangular section, the ratio between internal dimensions must be ≤1.5.

The recommended section for a flue pipe according to its length is listed in the table below:

Height (m) Useful section (cm²)

Traditional square section clay flue pipe with insulating hollow inserts.

GOOD

Chapter 2

page

Avoid flue pipes with internal rectangular sections whose larger side is double the smaller such as 20x40 or 15x30.

AVERAGE

Up to 5 m

Over 5 m

900 (30x30 cm or ∅ 30 cm)

625 (25x25 cm or ∅ 25 cm)

N.B. Too small or too large a section reduces draught and insulation.

For special sections, or section or path variations, functional smoke exhaust inspections must be conducted as per UNI 9615.

The smoke duct should be equipped with a solid material collection chamber at the mouth of the smoke duct to be easily opened with an airtight door.

IMPORTANT !

In the event of doubt on your chimney flue operations or that its dimensions are different from those recommended, we highly suggest an authorised MCZ technician inspect and measure chimney flue performance (micro-gauge measurements)

MCZ s.p.a. shall not be held liable for poor operation of the fireplace stove that is due to a flue pipe of improper size or installation that does not comply with provided requirements.

INSTALLATION AND USE MANUAL

2.6. COWL

If underestimated, it is a severe impediment to correct "chimney system" operations.

Flue pipe draught also depends on its cowl.

Therefore, if hand made, its four exhaust sections must correspond to

more than twice the internal section of the flue pipe. Having to exceed the peak of the roof, the cowl will be

exposed to wind, therefore an industrial type is recommended.

An industrial cowl, with prefabricated sections fitting together, allows optimal disposal of the flue gases.

The cowl must meet the following requisites:

• It must have an internal section equal to that of the chimney.

• It must have a useful output section not less that double that

of the internal section of the flue pipe.

• It must be built to prevent rain, snow and any foreign objects

from getting into the flue pipe.

• They must be installed to guarantee adequate smoke

dispersion and out of the reflux area where negative pressure forms.

For paired flue pipes, the cowl for solid combustion and the one for the upper floor must be at least 50cm higher than the other to avoid pressure transfers between paired flues.

The cowl must not have obstacles within 10 m such as walls, roof slopes and trees. Otherwise, raise it at least 1 m over the obstacle and, in the event of other nearby cowls, keep them at least 2 m away. In any case, the cowl must exceed the peak of the roof by at least 1m.

A traditional handmade cowl. The right exhaust section must be at least twice the internal section of the flue pipe, 2.5 times is ideal.

Chapter 2

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Steel cowl for flue pipe with internal smoke deflector cone.

t m 5

t m 1

INSTALLATION AND USE MANUAL

3. DIMENSIONS AND TECHNICAL SPECIFICATIONS

FORMA PURO 65 Technical specifications

534

766

538

602

200

150

260 274

100

83.5

Fuel type Wood

Hourly consumption 2,9 kg/h

Nominal thermal power kW 10,5 Kcal 9030

Efficiency 83,4%

Heatable volume * 226/40-258/35- 301/30

Minimum draught 8 Pa / 0,08 mbar

Smoke temperature 260 °C

Smoke outlet Ø 20 cm

Fire box dimensions 55x35 h59

Net weight 235 Kg

External combustion air outlet cm² 100

CO emission in smoke (13 %O2) 0,12 %

Massive smoke capacity 13,5 g/s

Flue pipe

Up to 5 m 30x30 cm Ø30

Over 5 m 25x25 cm Ø25

Note

Intermittent combustion unit * Data may vary according to the fuel used

Chapter 3

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(load 2,4 kg in 50min)

FORMA PURO 75 Technical specifications

532

846

618

3 5

682

150

3 9

3 6 2

250

150

. 1

3 2

269

263

5 3

150

83.5

100

Fuel type Wood

Hourly consumption 3,1 kg/h

Nominal thermal power kW 11,1 Kcal 9546

Efficiency 83,4%

Heatable volume * 239/40-273/35- 318/30

Minimum draught 8 Pa / 0,08 mbar

Smoke temperature 270 °C

Smoke outlet Ø 25 cm

Fire box dimensions 63x35 h62

Net weight 248 Kg

External combustion air outlet cm² 100

CO emission in smoke (13 %O2) 0,12 %

Massive smoke capacity 13,5 g/s

Flue pipe

Up to 5 m 30x30 cm Ø30

Over 5 m 25x25 cm Ø25

Note

150

Intermittent combustion unit * Data may vary according to the fuel used

(load 2,6 kg in 50min)

INSTALLATION AND USE MANUAL

FORMA PURO 95 Technical specifications

1056

256.5

828

892

250

150

532

275.5

83.5

150

100

Fuel type Wood

Hourly consumption 3,2 kg/h

Nominal thermal power kW 12,3 Kcal 10578

Efficiency 86,6%

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

Minimum draught 8 Pa / 0,08 mbar

Smoke temperature 280 °C

Smoke outlet Ø 25 cm

Fire box dimensions 84x35 h48

Net weight 268 Kg

External combustion air outlet Cm² 100

CO emission in smoke (13 %O

)

Massive smoke capacity 13,7 g/s

Flue pipe

Up to 5 m 30x30 cm Ø30

Over 5 m 25x25 cm Ø25

Note

Intermittent combustion unit * Data may vary according to the fuel used

FORMA PURO B95 Technical specifications

Fuel type Wood

Hourly consumption 3 Kg/h

Nominal thermal power kW 10,2 Kcal 8772

Efficiency 82,7%

Heatable volume * 219/40-251/35- 292/30

Minimum draught 8 Pa / 0,08 mbar

Smoke temperature 260 °C

83.5

Smoke outlet Ø 25 cm

Fire box dimensions 84x35 h48

Net weight 268 Kg

External combustion air outlet Cm² 100

CO emission in smoke (13 %O

)

Massive smoke capacity 13,7 g/s

243 250

1056

828

892

218

578.5

83.5

150

100

Flue pipe

Up to 5 m 30x30 cm Ø30

Over 5 m 25x25 cm Ø25

Note

Intermittent combustion unit * Data may vary according to the fuel used

Chapter 3

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(load 2,7 kg in 50min)

0,12 %

(load 2,5 kg in 50min)

0,23 %

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MCZ PURO 115 User Manual

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Frequently Asked Questions

User Manual