installation and use manual

installation and use manual
EN
INSTALLATION AND USE MANUAL
INSTALLATION AND USE MANUAL
Contents
page 2
INTRODUCTION .................................................................................................................................... 4 1. WARNINGS AND WARRANTY CONDITIONS ..................................................................................... 5 1.1. SAFETY WARNINGS ........................................................................................................................5 1.2. OPERATING WARNINGS ..................................................................................................................5 1.3. WARRANTY CONDITIONS................................................................................................................6 1.3.1. Restrictions ..............................................................................................................................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 ACCORDANCE WITH UNI 10683 ......................................................................... 7 2.1. OPERATING AREA ...........................................................................................................................7 2.2. PRECAUTIONS ................................................................................................................................7 2.3. CONNECTION TO THE EXTERNAL AIR INTAKE ..................................................................................8 2.4. CONNECTION TO THE FLUE PIPE.....................................................................................................9 2.5. FLUE PIPE ......................................................................................................................................9 2.5.1. Examples of flue pipes ............................................................................................................ 10 2.6. COWL .......................................................................................................................................... 11 3. DIMENSIONS AND TECHNICAL SPECIFICATIONS .......................................................................... 12 3.1. 3.2. 3.3. Dimensions Boxtherm 70 ............................................................................................................... 12 Dimensions Boxtherm 80 ............................................................................................................... 13 Technical specifications ................................................................................................................. 14 4. INSTALLATION AND ASSEMBLY ...................................................................................................... 15 4.1. PREPARATION AND UNPACKING .................................................................................................... 15 4.2. ELECTRICAL CONNECTION ............................................................................................................ 15 4.3. SELECTION OF OPERATING MODE ................................................................................................. 16 4.3.1. Natural convection ................................................................................................................. 16 4.3.2. Forced convection (ventilation kit) ........................................................................................... 16 4.3.3. Forced convection ( Comfort air VF ) ........................................................................................ 17 4.4. EXTERNAL AND INTERNAL AIR INTAKE .......................................................................................... 17 4.4.1. Air inlet for natural ventilation ................................................................................................. 17 4.4.2. Air inlet for forced ventilation .................................................................................................. 17 4.5. GENERAL ASSEMBLY RULES .......................................................................................................... 18 4.5.1. INSERT ASSEMBLY ................................................................................................................. 18 4.5.1.1. Removal of the smoke connection ..................................................................................... 18 4.5.1.2. Removal of the firebox ..................................................................................................... 19 4.6. CONNECTION TO THE FLUE PIPE.................................................................................................. 19 4.6.1. DIRECT CONNECTION BETWEEN INSERT AND FLUE PIPE ........................................................ 19 4.6.2. Smoke valve (optional) ........................................................................................................... 19 4.7. INSTALLATION OF CLADDING AND HOOD LINER ............................................................................ 20 4.8. INSULATING A WOODEN BEAM ..................................................................................................... 20 4.9. SUMMARY DIAGRAM FOR IDEAL CONNECTION OF THE INSERTS ..................................................... 21 5. OPERATION ..................................................................................................................................... 22 5.1. 5.2. 5.3. 5.4. 5.5. 5.6. 5.7. PRE-LIGHTING WARNINGS ............................................................................................................ 22 CHOICE OF FUEL .......................................................................................................................... 22 FIRST LIGHTING .......................................................................................................................... 23 LOADING THE FUEL ...................................................................................................................... 24 CONTROL OF COMBUSTION .......................................................................................................... 25 ASSEMBLING THE OPTIONAL FRAME ............................................................................................. 25 EMERGENCY SITUATIONS ............................................................................................................. 25 6. MAINTENANCE AND CLEANING ...................................................................................................... 26 6.1. Contents
CLEANING TO BE PERFORMED BY THE USER .................................................................................. 26 Technical service – MCZ Group S.p.A. all rights reserved - Reproduction prohibited
INSTALLATION AND USE MANUAL
Contents
page 3
6.1.1. Cleaning the glass .................................................................................................................. 26 6.1.2. Cleaning out the ashes ........................................................................................................... 26 6.1.3. Cleaning the refractory material walls (ALUTEC®) ..................................................................... 26 6.1.4. Cleaning the upper deflector in calorite .................................................................................... 27 6.1.5. Cleaning of painted parts ........................................................................................................ 27 6.2. CLEANING TO BE DEALT WITH BY SPECIALIZED TECHNICIAN ......................................................... 27 6.2.1. Cleaning flue pipe................................................................................................................... 27 Contents
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INSTALLATION AND USE MANUAL
INTRODUCTION
Dear customer,
Thank you for choosing an MCZ product, specifically a
fireplace stove of the Boxtherm 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!
Chapter 1
page
4
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
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" are used for any additional clarification.

NOTE: the “NOTE” provides the reader with
additional information on the subject.
Introduction
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Chapter 1
INSTALLATION AND USE MANUAL
1. WARNINGS
CONDITIONS
1.1.

AND
WARRANTY
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.

This apparatus cannot be used by people
(including children with limited physical,
sensorial or mental abilities or with little
experience and know-how unless they
have been viewed or instructed on the use
of the apparatus by the person responsible
for 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.

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.



SAFETY WARNINGS


example, heat protective
activation devices.
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
Warnings and warranty conditions
page
gloves
or
5
"cold"
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
these cases.
1.2.
OPERATING WARNINGS

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), use with the
smoke valve completely open by removing the
closure rod from its seat. Always keep the air
register completely open and 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.
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.
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Chapter 1
INSTALLATION AND USE MANUAL
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
technician and according to the detailed instructions
indicated in the instruction manual supplied with the
product.
page
6
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
authorisation.
Only original MCZ spare parts must be
used for all replacements.
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.
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.
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.
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.
Warnings and warranty conditions
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INSTALLATION AND USE MANUAL
Chapter 2
page
7
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 m3/h must be available) according to installation
standards and current regulations in the country of installation.
The room volume must not be less than 60 m3.
Air must enter through permanent apertures on the walls (near the
fireplace stove) that open outdoors with a minimum section of 360 cm2.
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.



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 an adequate smoke exhaust system

equipped with outdoor ventilation
Theoretical notions for installation
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INSTALLATION AND USE MANUAL
Chapter 2
page
8
IMPORTANT!
2.3.

The fireplace stove must be installed
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.
and
CONNECTION TO THE EXTERNAL AIR INTAKE
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 cm2
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.
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.
Theoretical notions for installation
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Chapter 2
INSTALLATION AND USE MANUAL
2.4.
page
CONNECTION TO THE FLUE PIPE
9
Flue pipe
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.
Hood grille
45° max
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 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 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.
Smoke
connection
Ceramic fibre
insulation
Example of fireplace stove connection
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.
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.
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).



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.
Theoretical notions for installation
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.
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Chapter 2
INSTALLATION AND USE MANUAL
page
10
2.5.1. Examples of flue pipes
AISI 316 stainless steel flue
pipe with dual chamber
insulated with ceramic wool
or equivalent resistant to
400°C.
Flue pipe in refractory brick
with insulated double wall and
external coat of cement mix
lightened with honeycomb
material such as clay.
EXCELLENT
GOOD
Traditional square section
clay flue pipe with insulating
hollow inserts.
GOOD
Avoid flue pipes with internal
rectangular
sections
whose
larger side is double the smaller
such as 20x40 or 15x30.
AVERAGE
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 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.
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.
Theoretical notions for installation
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INSTALLATION AND USE MANUAL
2.6.
Chapter 2
page
11
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.
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.
Steel cowl for flue pipe
with internal smoke
deflector cone.
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.
1 mt

0,5 mt
The cowl must meet the following requisites:
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.
Theoretical notions for installation
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INSTALLATION AND USE MANUAL
Chapter 3
page
12
3. DIMENSIONS AND TECHNICAL SPECIFICATIONS
515
508.5
Dimensions Boxtherm 70
3.1.
695
450
250
Ø180
Installation and assembly
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INSTALLATION AND USE MANUAL
page
13
583.5
Dimensions Boxtherm 80
590
3.2.
Chapter 3
795
450
250
Ø180
Installation and assembly
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Chapter 3
INSTALLATION AND USE MANUAL
3.3.
page
14
Technical specifications
Technical specifications
Fuel type
Hourly consumption
Reloading/load time
Nominal output power
Minimum output power
Efficiency
CO emission in the smoke (13% O2)
Particulate/OGC/Nox (13%O2)
Smoke flow rate
Smoke temperature
Recommended draught
Heatable volume m3
Smoke outlet
Firebox dimensions
BOXTHERM 70
wood
2,1 kg/h – 1,1 kg/h
45 min. / 1,6 kg
8 kW (6880 Kcal/h)
4,1 kW (3526 kcal/h)
83,7%
0,11%
49 mg/Nm3 - 6 mg/Nm3 –
132 mg/Nm3
8 g/s
240 °C
0,12 mbar – 12 Pa
161/40-184/35-215/30*
Ø 18 cm
H=515 mm P=450 mm
L=695 mm
100 Kg
cm² 150
100 mm
BOXTHERM 80
wood
2,4 kg/h – 1,1 kg/h
50 min. / 2 kg
9 kW (7740 Kcal/h)
4,1 kW (3526 kcal/h)
82,9%
0,12%
21 mg/Nm3 - 1 mg/Nm3 –
70 mg/Nm3
8,9 g/s
250 °C
0,12 mbar – 12 Pa
183/40-209/35-244/30*
Ø 18 cm
H=590 mm P=450 mm
L=695 mm
130 Kg
cm² 150
100 mm
Net weight
External combustion air inlet
Distance from combustible material
(back)
Distance from combustible material
100 mm
100 mm
(side)
Distance from combustible material
100 mm
100 mm
(down)
Flue pipe
Up to 5 m
30x30 cm Ø30
30x30 cm Ø30
Over 5 m
25x25 cm Ø25
25x25 cm Ø25
Note
Intermittent combustion unit
*Heatable volume based on the requested power per m3 (respectively 40-35-30 Kcal/h per m3)
Tested according to EN 13229 in accordance with Directive 89/106/EC (Construction Products).
Installation and assembly
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INSTALLATION AND USE MANUAL
Chapter 4
page
15
4. INSTALLATION AND ASSEMBLY
IMPORTANT!
The fireplace stove must be installed and connected
to the smoke duct only by a specialized technician, so
that all local and national regulations are complied
with.
Installation must in any case by carried out in
compliance with UNI 10683.
When the fireplace is unpacked, check for perfect operation of all
its parts or any damage which may have occurred during
shipping. The retailer or the carrier must be immediately
informed of any damage.
If the fireplace stove is installed in a place that is difficult to reach, its
weight can be reduced by removing the internal parts that make up the
fire box. However, be sure to put all of the parts back in place.
This operation is to be carried out only by specialized
personnel.
MCZ shall not be held liable if the preceding warning is not
complied with.
4.1.
PREPARATION AND UNPACKING
Open the packaging, remove the stove unit from the pallet and position
it in the chosen location, taking care that its position complies with the
above instructions.
The fireplace stove must always be kept in a
VERTICAL
position during handling, using the
appropriate handles located on the sides.
Example of fireplace stove packing
Be especially careful that the door and its glass are protected from
mechanical collisions that could jeopardise their integrity.
Moving the product must be done with care. If possible, unpack the
fireplace stove in the area where it is to be installed.
The materials which make up the packaging are not toxic or harmful,
so no special procedures for disposal are required.
The final user must store, dispose or recycle packaging material in
accordance with local regulations.
4.2.
ELECTRICAL CONNECTION
Before positioning the insert, a 230V - 50 Hz electrical power outlet
must be prepared near the insert in order to connect the electrical cable
that powers the forced ventilation fans.
The socket must be fitted with earth and accessible at all times to cut
off power when servicing equipment.
Installation and assembly
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Chapter 4
INSTALLATION AND USE MANUAL
page
16
IMPORTANT!
The installation must be carried out by
disconnecting the electricity from the home.
first
When preparing the connection of the electric cable
provided with the insert VF kit, be very careful not to
crush the cable while inserting the product. This
could cause short circuits that can damage the entire
electrical system.
Furthermore, predispose a socket with bipolar switch
to remove and/or turn off in case of maintenance.
4.3.
SELECTION OF OPERATING MODE
IMPORTANT!
With either NATURAL CONVECTION or with FORCED
VENTILATION it is necessary to provide connection
to the external air intake.
BOXTHERM can distribute the hot air either by
NATURAL
CONVECTION or by FORCED CONVECTION through the use of a
FORCED VENTILATION KIT or with the COMFORT AIR system.
4.3.1. Natural convection
If this system is chosen, an air intake must be prepared (A) that has a
free passage surface of at least 150 cm2 to make the natural fresh air
flow into the installation environment (better if inside the cladding). The
air for the natural convection ventilation (B) will exit from the front part
in the opening between the firebox and the outer cladding and will be
uniformly dispersed throughout the room (fig.1).
B
B
B
A
Figure 1 – Natural convection
4.3.2. Forced convection (ventilation kit)
If this system is chosen, in addition to adopting the rules of natural
convection, in lower part of the fireplace stove, the ventilation kit must
be installed, inclusive of the temperature probe to switch the stove on
and off automatically when the temperature of the air near the
probe is about 50/60°C.
A
To check that the probe works properly, heat it with a hair
dryer and wait for the fan to turn on.
Do not perform this check by heating up the probe
with open flames (cigarette lighter, matches, etc...)
since this could irreparably damage the probe.
If the reaction times of the probe are too long, then you should check
the quality of the wood, e.g. poplar or beech, and its humidity (see
paragraph“5.2 Choice of fuel), or because the chimney flue does not
allow suitable discharge of the fumes and a correct combustion.
Installation and assembly
B
C
E
D
Figure 2 - VF kit assembly
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Chapter 4
INSTALLATION AND USE MANUAL
page
17
ASSEMBLY KIT: for the assembly (fig.2) after opening the door A
remove the protective panel B by unscrewing the screws C; then insert
the kit and secure it with the screws D on the appropriate supports –
be careful to run the cable through the fairlead hole on the side of the
insert (fig.3); reassemble all parts following the reverse sequence.
IMPORTANT!
The installation and assembly of the ventilation kit
must be carried out by qualified personnel in
compliance with current national and local
regulations.
Figure 3 - VF kit assembly detail
4.3.3. Forced convection ( Comfort air VF )
If this system is chosen, an air intake must be prepared (A) that has a
free passage surface of at least 150 cm2 to make the natural fresh air
flow into the installation environment (better if inside the cladding).
Fig.4
For the ducting of hot air, it is necessary to install a reduction flange Ø
100 on the upper connections of the stove unit. Then insert in the
flanges of the hoses Ø 100 in the COMFORT AIR outlets (B).
B
4.4.
B
EXTERNAL AND INTERNAL AIR INTAKE
4.4.1. Air inlet for natural ventilation
If the fireplace stove is installed with natural ventilation, you must
provide an external air intake B (150 cm²) that allows natural fresh air
to flow inside of the cladding. This air intake A (150 cm²) must be
made in the room where the stove unit is installed.
It is indispensable to comply carefully with this
instruction, otherwise the lack of oxygen may
compromise the safety of the installation.
A
Figure 4 - Comfort Air natural convection
4.4.2. Air inlet for forced ventilation
If the fireplace stove is installed with forced ventilation, i.e. using the
COMFORT AIR kit, place air intakes and ducts as follows:
an external air intake (150 cm²) must be provided that allows
natural fresh air to flow into the cladding. This air intake can also
be located in the room where the fireplace stove is installed.
This mode allows a proper mix of the air in the room of
installation and better cooling of the structure of the fireplace
stove.
Installation and assembly
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Chapter 4
INSTALLATION AND USE MANUAL
page
18
Remember that:

All of the air intakes must be equipped with shutters than can
be controlled from the outside and that are equipped with
insect protection.

The air intake section is considered net, therefore the area of
any obstructions must be considered (mesh, etc.)

The filters or meshes need to be cleaned periodically to ensure
air can pass through them.

Do not for any reason obstruct the air intakes if the
fireplace stove or ventilation kit is in operation
4.5.
GENERAL ASSEMBLY RULES
The insert can either be inserted on existing fireboxes or inserted as an
autonomous firebox thanks to its self-supporting structure.
If the fireplace stove is positioned in an existing firebox, check that the
dimensions of the firebox are compatible for insertion.
It can be installed at the desired height, providing a suitable support
during work.
A
Always evaluate the structural condition of the surface which
will take the weight, and always leave a minimum 5 cm
airspace between the stove and any walls.
Install dry the fire bed of the cladding leaving an opening of 1 cm
for the insulation.
For installation near flammable material, comply with the
following minimum safe distances:

100 mm (distance from the sides and back)

80 mm (insulating material)

100 mm (height above floor)
If the stove is positioned over a floor or close to
walls made of flammable materials, it is advisable to
use sufficient insulation.
B
C
D
4.5.1. INSERT ASSEMBLY
To facilitate insertion of the insert, the firebox can be removed from the
outer cladding or only the flue pipe connection group to facilitate the
connection to the flue pipe.
4.5.1.1.
Removal of the smoke connection
After opening the door, remove the upper deflector in calorite B and
unscrew the screws that tighten the union D (fig.5); after creating the
connection to the flue pipe and inserting the fireplace stove, reinstall
the union D being careful to connect it correctly with the flue pipe tube,
tighten the screws properly and reposition the deflector in calorite B.
Installation and assembly
Figure 5 – Insert removal
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INSTALLATION AND USE MANUAL
4.5.1.2.
Chapter 4
page
19
Removal of the firebox
After following the instructions in chapter 4.5.1.1. continue by removing
the protective panel A by unscrewing the locking screws and then block
the firebox to the outer cladding; at this point the firebox can be
separated from the outer cladding to facilitate the assembly.
4.6.
CONNECTION TO THE FLUE PIPE
We recommend connecting the stove to the flue pipe by means of pipes
and bends in aluminised steel, capable of withstanding the high
temperatures which are reached in that section of pipe, and of resisting
corrosion from the fumes. These connecting pipes are available on
request in various sizes (see our price list), and they simplify
installation, as they are assembled by fitting one into another. Figure 6
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
When installation is complete, the smoke connection
must be insulated with ceramic fibre matting or
material that is resistant up to at least 600°C.
Flexible pipes in steel or aluminium cannot be used
to connect the fireplace stove to the chimney flue as
they are prohibited by current regulations.
Figure 6 – Connection to the flue pipe
4.6.1. DIRECT CONNECTION BETWEEN INSERT AND FLUE PIPE
Drill and disassemble the existing clay hood and engage the elements
in the chimney flue, being careful not to exceed the 45° inclination and
to correctly carry out any infilling necessary in order to prevent soot or
ashes from the chimney flue from settling above the insert (fig. 6).
4.6.2. Smoke valve (optional)
In case of excessive draught in the flue chimney, combustion may
become unbalanced and consequently less efficient. In this case, in
order to improve combustion efficiency, it is advisable to install the
smoke valve (optional) directly at the output of the fireplace stove.
Installation and assembly
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Chapter 4
INSTALLATION AND USE MANUAL
4.7. INSTALLATION
LINER
OF
CLADDING
AND
page
HOOD
1
2
BEFORE YOU START INSTALLING THE CLADDING OF
THE
FIREPLACE
STOVE,
READ
CHAPTER
6
“OPERATING TEST”
The fireplace stove and the parts of the cladding must be attached to
one another WITHOUT COMING INTO CONTACT WITH THE
STEEL STRUCTURE to prevent transmission of the heat to the marble
and/or stone, and to allow normal thermal dilation. use care with wood
finishes such as beams or shelves, which must be suitably insulated.
In particular, shelves must be placed at a distance of not less than 30
cm from the upper part of the unit.
We recommend making the hood liner in fire-resistant
plasterboard of 15/20 mm thickness, with a self-supporting frame in
galvanised profile, so as not put weight on components of the cladding
(such as wooden beams and marble architraves) which do not have a
load-bearing structure and to make it easy to work in the event of
future anomalies and/or maintenance.
Dry install the fire bed of the cladding, leaving an aperture of 1 cm
between the fireplace stove and the fire bed to provide insulation.
4.8.
20
1
10 mm
3
THERMAL PROTECTION OF CROSSBEAM
1.
Insulation applied or to be applied.
2.
Wood beam
3.
Marble or other material
Figure 7 – Insulating a wooden beam
INSULATING A WOODEN BEAM
If there is a beam made of wood or other combustible material above
the hot air outlet opening, it is absolutely necessary to protect it
with panels made of insulating material (ex: calorite).
Installation and assembly
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Chapter 4
INSTALLATION AND USE MANUAL
page
21
4.9. SUMMARY DIAGRAM FOR IDEAL CONNECTION
OF THE INSERTS
The installation described below is ideal for inserts assembled on old or
new fireplaces; the insert must never be walled up but positioned 5mm
away from any masonry surface since it needs to be able to expand
when it is hot; furthermore, if it is walled up there is a significant drop
(30-40%) in the thermal efficiency because the heat is not allowed out
completely but only in part.
Insulate the structure thoroughly only if there are
parts in wood or flammable material nearby.
FLUE PIPE
*UPPER
INSULATION
*REAR INSULATION
BEAM
BEAM
INSULATION
CONVECTION AIR DUCT
(USEFUL FOR THE EXCHANGE)
PIPE÷150
CONVECTION AIR
OUTLET
VENTILATION
AIR OUTLET
CHIMNEY FLUE
CONNECTION
*CALORITE
INSULATION
COMPENSATION
NETWORK
VENTILATION AIR
INLET
CONVECTION
AIR INLET
SUPPORT IN
MASONRY
Installation and assembly
MINIMUM DISTANCE 3-5 CM
CONVECTION AIR INLET
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INSTALLATION AND USE MANUAL
Chapter 5
page
22
5. OPERATION
5.1.
PRE-LIGHTING WARNINGS
Make sure you have read and completely understood the contents of
this instruction booklet.
Remove all accessories and parts that could burn from the firebox and
from the door.
Remove the stickers from the ceramic glass or the high
temperature could melt them and irreparably damage the
glass. In this case, the MCZ warranty does not cover the glass.
Do not touch the fireplace stove when it is lit for the first
time. During this phase, the paint finishes drying and
hardens. If you touch the paint, you may expose the steel
surface.
It is good practice to provide plenty of ventilation in the
room during the initial lighting, as the stove will give off a
small amount of smoke and smell of paint.
If necessary, touch up the paint with the aerosol spray in
the original colour (see “Fireplace stove accessories and
inserts")
Do not stay near the fireplace stove, and as previously mentioned,
ventilate the room. The smoke and the smell of paint will vanish after
about one hour of operation. There are no health risks involved.
During start-up and cooling, the fireplace stove is subject to expansion
and contraction; therefore, you may hear slight creaking noises.
This phenomenon is absolutely normal, the structure being made of
sheet steel, and must not be considered a fault.
It is very important not to bring the stove up to full
heat immediately. Bring it up to temperature
gradually.
This avoids damages to welds and the steel
structure.
Do
not
demand
full
performance straight away!
5.2.
heating
CHOICE OF FUEL
To obtain the maximum performance from your BOXTHERM fireplace
stove, it is of primary importance to use wood with suitable
characteristics.
It is advisable to use wood for heating such as oak, beech, locust
tree, or oak with good calorific energy, or logs of pressed wood that
do not have resin. These have a high calorific power and must
be used with caution to avoid overheating which could damage
the stove.
It is advisable to use fuels such as poplar, pine, lime tree, or
chestnut which have low calorific power, since they are soft wood and
also they do not burn for a long time.
Operation
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Chapter 5
INSTALLATION AND USE MANUAL
Avoid using fuels such as pine, fir, and olive as they contain a high
degree of resin and their combustion may substantially soil the fire
mouth and the ceramic glass; also, they do not have an exceptional
yield.
For all types of wood listed, the humidity they contain is
essential because it determines the calorific energy.
Do not use treated fuels (such as painted or
varnished wood, or particle board) or unsuitable
materials (such as plastics and derivatives), which
could release toxic or polluting substances. Do not
burn rubbish.
The gases produced by combustion due the use of
unsuitable fuels cause damage to the fireplace stove
and the chimney, they cause pollution and can
compromise your health.
page
Wood drying
time (i.e. beech)
%
humidity
23
Heat
power
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 9 – Calorific energy (e.g. beech) in relation
to humidity contained.
A high percentage of humidity produces condensation in the
smoke duct causing an alteration in the draught and
generating smoke and a significant deposit of soot on the
glass of the door and in the flue pipe with a possible risk of
a chimney fire later on.
5.3.
FIRST LIGHTING
It is advisable to approach the first lighting with caution, using
good-quality, well-seasoned wood.
The primary air inlet must be fully open. Do not use alcohol,
petrol, or other volatile flammable substances. On first lighting,
fumes and unpleasant smells may be given off, caused by the drying of
the product; this is not hazardous to the health, and it is sufficient to
ventilate the room adequately. Once combustion has started, pieces of
wood of normal size may be added.
The flame must have as far as possible a smooth and laminar flow. On
the various occasions when the stove needs reloading, the
door should be opened slowly, to avoid blowbacks of smoke
into the room.
Figure 10 – Air register
Proceed as follows:

Place a small amount of balled paper in the stove.

Cover the paper with a small quantity of twigs and a few pieces of
wood.

Open the primary air register completely fig.10

Light the paper, and if necessary leave the door up; when the
twigs are burning, the door can be closed.

Only once the flame is burning well (presence of a bed of coals and
full combustion), move the air adjustment to MIN (see fig.11) MAX
to obtain normal power, MIN for slow combustion.
As the fire burns, add wood. Never overload the fireplace stove
with wood (see technical specifications in the table).
As soon as the flames have died down and a bed of embers has
formed, load the stove normally. Small loads of wood are preferable to
large ones for combustion.
Operation
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INSTALLATION AND USE MANUAL
Chapter 5
page
24
Attention
5.4.

Do not use volatile, flammable substances
(petrol, alcohol etc.) for lighting the fire.

Do not use fuels which could release toxic
substances or pollutants.

Do not put the fire out by throwing water on it.

Check the external and internal air intakes, and
the flue pipe, at least once a year, arranging for
them to be cleaned.

During use, the metal parts and the glass reach
high temperatures. For all jobs of loading the
stove, adjustment or cleaning the ash drawer,
use the insulating glove provided.

Never leave children unattended
fireplace stove when it is in use.

The risk of burns from contact with hot surfaces
is very high.
near
the
LOADING THE FUEL
For normal fuel loading, open the fire door by turning the handle and
pulling the door towards you.
During use, the metallic structure, the handles and the glass
become very hot. Use the thermal glove provided when
handling these parts.
During normal use, always keep the fire door completely
closed, since intermediate positions cause abnormal combustions
(forge effect), rapid consumption of wood and a drastic reduction in the
heating efficiency of the unit.
Open the door only to add fuel, and only for brief periods of
time.
The fireplace stove works best and provides the greatest yield when the
door is closed, because the hermetic combustion chamber and the
calibrated inlet of oxygen allow increased performance.
Operation
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Chapter 5
INSTALLATION AND USE MANUAL
5.5.
page
CONTROL OF COMBUSTION
25
MAX
PRIMARY AIR
The fireplace stove has an inflow on the front that permits the entry of
the primary air required for combustion.
Moving the register completely outwards (MAX fig.11) provides the
maximum inflow of PRIMARY and SECONDARY air for lighting the
fireplace stove.
Once the flame in the fireplace stove is burning well, turn the register
until the knob reaches the centre position. In this condition, the primary
air inlet is completely closed and the secondary air flow is at a
maximum.
SECONDARY AIR
The adjustment is made with the previously mentioned register.
Pushing this register from the middle position inwards adjusts the flow
of exclusively secondary air from MAX to MIN.
In normal conditions of use, dirt deposits on the glass at
lighting, but disappears as soon as the combustion chamber
is hot enough.
The use of damp or treated wood emits a higher quantity of
smoke than normal that can dirty glass faster. Also the low
performance of the flue pipe can jeopardise glass cleanliness
since smoke remains in the combustion chamber longer than
normal.
5.6.
MIN
Figure 11– Frame assembly
ASSEMBLING THE OPTIONAL FRAME
An optional finishing frame can be assembled on BOXTHERM, which
covers three sides of the product. This optional frame is assembled at
the end of installation and after the cladding has been completed and is
anchored directly to the insert structure. This frame is designed to
finish and cover the crack that is formed between the metal structure
of the fireplace stove and the wall.
For frame assembly proceed as follows (fig.12):
C
D
B
A
 Remove door A by unscrewing the two screws B on the upper
part of the fireplace stove
 Insert the frame C until it comes into contact with the cladding
and fasten it with the four screws D
Figure 12– Frame assembly
 Reinstall the door A inserting it in the pin of the lower hinge
and fasten it with the screws B
5.7.
EMERGENCY SITUATIONS
If for any reason the stove fire needs to be suddenly and quickly put
out or a fire in the flue pipe needs to be put out, proceed as follows:

The equipment door must be kept closed.

Disconnect the power supply and do not use water (shock
hazard).

Urgently request the intervention of the competent authorities.
Operation
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INSTALLATION AND USE MANUAL
Chapter 6
page
26
6. MAINTENANCE AND CLEANING
ATTENTION!
All cleaning operations of all parts should be
conducted with the fireplace stove cold.
6.1.
CLEANING TO BE PERFORMED BY THE USER
6.1.1. Cleaning the glass
Specific products can be used to clean the glass (see our price list), a
cloth dampened with water and ammonia or a bit of white ash and a
newspaper.
Any soot and dirt accumulations take longer to clean.
ATTENTION!
Do not spray the product on the painted parts or on
the gaskets of the door (ceramic fibre cord)
6.1.2. Cleaning out the ashes
This must be done when the fireplace stove is off and cold.
It is advisable to adequately clean the fire bed for proper combustion.
To remove the ashes from the fire bed, use a metal scoop and brush.
Place the ashes in a non-flammable container for transport.
Ashes that are still hot should be kept outdoors with great
care, and not placed in a waste container. Leave them to cool
down in the open air in a metal container.
6.1.3. Cleaning the refractory material walls (ALUTEC®)
They do not require any cleaning, since the feature of this material
(ALUTEC®) is that it does not absorb soot but rather repels it when the
fire box is hot. During the lighting phase, during which the fire box
tends to blacken, the refractory materials will turn white again, starting
from the base of the flame, when the combustion chamber reaches its
operating temperature (~ 400° C).
If this does not happen, it may be due to the following:

Humid or resinous wood that does not release enough heat or
that dirties the combustion chamber (see chapter 6.2)

Flue pipe with poor performance resulting in smoke remaining
too long in combustion chamber, dirtying the fire box.

Flue pipe with poor performance which does not allow fireplace
stove to reach high yield that results in adequate temperature of
the refractory material.
Maintenance and cleaning
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INSTALLATION AND USE MANUAL
Chapter 6
page
27
Never clean the refractory material with a damp cloth
or anything else, as it may be stained.
Use a dry paintbrush if necessary to remove heavy
soot build-up.
If the Alutec does not whiten, it is not to be
considered as a defect in light of the warnings and
instructions above.
6.1.4. Cleaning the upper deflector in calorite
This does not require particular care. With prolonged use, however, the
effective but porous material of which the deflector inside the firebox is
made can wear out or become damaged. It should be replaced only
when its thickness is reduced by half or if it breaks.
6.1.5. Cleaning of painted parts
Do not clean the painted parts with wet rags when the unit is in
operation or hot in order to prevent thermal shock to the paint which
may cause it to detach. Do not use abrasive or aggressive products or
materials. Clean with damp cotton or paper towels.
The silicone paints used to paint MCZ products have top
quality technical properties that make them resistant to very
high temperatures.
There is however a physical limit (380°-400°) beyond which
the paint begins to fade or (over 450°) to vitrify; it may then
flake and detach from the steel surface. If these effects are
noticed, this means temperatures have been reached that
are well above those at which the product should properly
operate. Therefore, you should use the amount of fuel
specified in the technical tables.
6.2. CLEANING TO BE DEALT WITH BY SPECIALIZED
TECHNICIAN
6.2.1. Cleaning flue pipe
Mechanical cleaning of the flue pipe is recommended at least once a
year. Excessive deposits of unburnt solid material can cause problems
with the evacuation of smoke, and gives rise to a risk of chimney fires.
To access the appliance's flue pipe for cleaning, remove the smoke
deflectors.
WARNING!
The frequency with which the product is cleaned
should be determined based on the type of use that is
made of the product and the type of installation.
MCZ suggests relying on an authorised service centre
for end-of-season cleaning and maintenance, which
will carry out all of the previously mentioned work
and make a general check of the appliance's
components.
Maintenance and cleaning
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MCZ GROUP S.p.A.
Via La Croce n°8
33074 Vigonovo di Fontanafredda (PN) – ITALY
Telefono: 0434/599599 r.a.
Fax: 0434/599598
internet: www.mcz.it
e-mail: [email protected]
8901154300
Rev. 2
05/2014
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