COSDEP STQ14 Operating instructions

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USER’S AND MAINTENANCE HANDBOOK FOR
ECO-PELLET STOVES
STQ14 square covering
ST18 Round covering-STQ18 Square covering-STC18 Fantasy
MT28 Round covering-MTQ28 Square covering-MTC28 Fantasy
SERIAL NUMBER
COSDEP di Vighesso Onorio S.a.s.
Via Copernico, 25, 36034 Malo (VI) ITALY
Tel. [phone] / 602414 Fax [phone]
Internet: www.cosdep.com e-mail: [email protected]
ST-MT
STQ-MTQ
STC-MTC

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CONTENTS
1. INTRODUCTION..………………...………………………………………………............. 3
1.1 General precautions
1.2 Compliance with standards
1.3 Rules and instructions
1.4 Declaration of conformity
2. GENERAL DESCRIPTION…………………………………..………………................ 5
2.1 Operating principle
2.2 Pellets and qualities available on the market
2.3 The pellet tank
3. INSTALLATION AND IGNITION ……………………………………………............ 6
3.1 Choosing the correct stove size
3.2 Unpacking and positioning the stove
3.3 The location of the stove and connection to a chimney
3.4 Ignition, starting up
3.5 Diagram explaining display sequences
3.6 Switching off/extinguishing the stove
4. HOW TO PROGRAMME THE STOVE ……..………..……………………............ 10
4.1 Description of control panel
4.2 Selecting function menus
1. The DATE and TIME menu…………………………………………………………………………….. 11
2. The RECIPE SELECTION………………………………………………………………………….……… 12
3. The OPERATING MODE menu……………………………………………………………………….. 13
4. the WEEKLY PROGRAMME menu…………………………………………………………………… 13
5. The TIMER COUNTDOWN menu………………………………………………………………….. . 14
6. The SELECT LANGUAGE menu……………………………………………………………………... 15
7. The BUZZER menu………………………………………………………………………………………… 15
8. The THERMOSTAT MODE menu…………………………………………………………………… . 15
9. The IR REMOTE CONTROL (optional) menu…………………………………………………. 16
10. The ASSISTANCE menu………………………………………………………………………………. 16
11. The DEBUG menu………………………………………………………………………………………… 17
12. The SERVICE menu……………………………………………………………………………………….. 18
5. FORMULATION PARAMETERS TO THE TYPE OF PELLET..........………….. 19
6. CLEANING, MAINTENANCE AND REPAIRS....................…………………… 20
6.1 Every day
6.2 Once a week
6.3 Once a month or whenever there are ignition problems
6.4 At the end of the winter
6.5 Changing the (optional) remote control battery
6.6 Repairs
7. TECHNICAL SPECS. AND DIAGRAM SHOWING OPERATION..........…… 24
8. ELECTRICAL DIAGRAM………………………………………………………................ 26
9. GENERAL THERMOSTAT WITH MANUAL RESET.............................. 27
10. ELECTRIC BOX…………………………………………………………………............. 27
11. ERROR MESSAGES………………………………………………………….............. 28
12. DISPOSING OF THE STOVE…………………………………………….............. 28
13. GUARANTEE........................................................................... 29

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1. INTRODUCTION
1.1 GENERAL PRECAUTIONS
This user’s and installation handbook is an
indispensable, integral part of the product;
it should be used and kept with care where
it can be read by all users.
Read all the instructions in the handbook
before starting to install the product.
The apparatus should be utilised only and
exclusively for the purposes for which it
was intended. Any other improper use is to
be considered dangerous for the user and
will invalidate the guarantee.
Do not place any object whatsoever on the
stove.
Do not use inflammable substances to
ignite the stove.
Make sure there are no inflammable
objects, furniture or household linen in the
immediate vicinity of the stove. Respect
the safety distances given in the
handbook.
Keep children away from the stove when it
is in operation.
Do not obstruct the intake and ventilation
grilles of the stove in any way whatsoever.
Installation, maintenance and any
necessary repairs should be carried out by
skilled personnel, using only and
exclusively original spare parts, otherwise
the guarantee will be invalidated.
The manufacturer declines all liability for
incorrect installation or maintenance that
may cause damage people or objects
When carrying out cleaning and
maintenance make sure that the appliance
is switched off, cool and disconnected from
the power supply.
The product should be situated on
premises with fire-fighting devices and
with adequate air change.
If the appliance is sold to third parties
make sure that the new user is provided
with this handbook.
The manufacturer has the copyright on this handbook. The instructions herein may not be
duplicated or communicated to third parties and may not be used for competitive purposes without
due authorisation.
1.2 COMPLIANCE WITH STANDARDS
The ST16 and MT24 pellet stoves comply with the following standards:
The electronics comply with electromagnetic compatibility directive 89/336/CEE and subsequent
amendments.
List of tests required for Residential, Commercial and Light Industry premises
General Standard CEI EN 50081-1
(Emissions for Residential, Commercial and Light Industry premises)
Tests for standard of reference
RADIATED electromagnetic EMISSIONS EN 55022
CONDUCTED electromagnetic EMISSIONS (30 MHz, 300 MHz) EN 55014
HARMONIC current EMISSIONS EN 61000-3-2
Voltage fluctuation and FLICKER EMISSIONS EN 61000-3-3
CONDUCTED electromagnetic EMISSIONS (150 kHz, 30 MHz) EN 55014

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General Standard CEI EN 55104
Immunity of Household Appliances, Electric Tools and Similar Apparatus)
Tests for standard of reference
Electrostatic discharge IMMUNITY EN61000-4-2
Radiated, radio frequency electromagnetic field IMMUNITY EN 61000-4-3
Electrical fast transient/ BURST IMMUNITY EN 61000-4-4
SURGE IMMUNITY EN 61000-4-5
Conducted disturbances induced by radio frequency fields IMMUNITY EN 61000-4-6
Voltage dips, short interruptions and voltage variations IMMUNITY EN 61000- 4-1
All electrical and electronic parts comply with the new ROS standards.
1.3 RULES AND INSTRUCTIONS
RECOMMENDATIONS:
In order to use the appliance correctly it is necessary to carefully read the all instructions
contained in this handbook.
Do not use the appliance or carry out any maintenance until you have read this handbook.
Should the appliance be modified or tampered with, the user shall be deemed liable.
IMPORTANT: The appliance must be connected to a (PE) ground installation (low voltage directives
73/23 CEE, 93/98 CEE).
1.4 DECLARATION OF CONFORMITY
DECLARATION OF CONFORMITY
In accordance with Low Voltage Directive 73/23 CEE, Electromagnetic Compatibility Directive
89/336 CEE, Machinery Directive 98/37 CEE, integrated with CE mark according to Directive 93/68
CEE.
Other standards of reference: STANDARD EN 60 335-1:94 + A11:95
+A12:96+A1:96+A13:98+A14:98+A2:00+A15:00+A16:01
DEVIATION PROCEDURES: EN 50165:1997+A1:01
The company COSDEP di Vighesso Onorio sas, registered office Via Copernico No. 25, MALO, Italy
hereby declares that the products
PELLET STOVES mods. STQ14-ST18-STQ18-SCT18 and MT28-MTQ28-MTC28
have been designed and built in conformity with the aforementioned EU Directives and with the
corresponding assimilated Italian laws, in order to apply the CE mark.
Malo, 1st July 2006 COSDEP di Vighesso Onorio sas
Via Copernico,25
36034 MALO –VI- ITALY
Tel. [phone]
Fax [phone]

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2. GENERAL DESCRIPTION
2.1 OPERATING PRINCIPLE
The STQ14-ST18-STQ18-STC18 and MT28-MTQ28-MTC28 stoves have been especially designed to
satisfy requirements for a practical heating appliance. They have a fan to circulate the heat
produced by the burning pellets and are designed for clean, extremely efficient combustion.
Nevertheless, there is a range of pellets on the market and the different qualities may affect
combustion and produce larger quantities of ash.
Besides the notice "WAIT" allows to reduce the consumption of pellet because the stove switches off
itself when the temperature environment overcomes of 2 degrees the temperature setting and
automatically the stove switches on again itself when the temperature environment goes down of 1
degree respect the setting one.
P.S. During the notice "WAIT" it is possible to switch OFF the stove pressing the OFF key
2.2 PELLETS AND QUALITIES AVAILABLE ON THE MARKET
Pellets are a by-product of wood "dust”. The resulting sawdust is pressed to form cylinders with a
diameter of 6 mm and a maximum length of 30 mm. They have a maximum moisture content of
10% and a thermal value of 4.9 kW/kg. The best pellets on the market are a blend of beech and
pine dust.
Standards DIN 51731 and ÖNORM M 7135 define pellet quality:
Length: approx. 10 - 30 mm
Diameter: approx. 6 mm
Actual weight: approx. 650 kg/m³
Thermal value: approx. 4.9 kW/Kg
Residual moisture: approx. 6 –12%
Ash: < 1.5%
Specific weight: > 1.0 kg/dm³
It is also possible to make a visible assessment of pellet quality:
Good quality: shiny, smooth, constant length, very little dust.
Bad quality: horizontal and cross-wise cracks, a lot of dust, varying length.
A simple test for finding a good pellet is to measure its specific weight by putting a few grains into a
glassful of water:
Good quality: the pellet immediately falls to the bottom
Poor quality: the pellet floats
Using other material than that described above as fuel will have an adverse affect on stove
operation and will invalidate the guarantee.
2.3 THE PELLET TANK
The tank holding the reserve of pellets is at the top of the stove. To get at the tank it is necessary
to open the lid on the top. The maximum capacity of the tank depends on the model:
STQ14 - approx. 10 kg
ST18-STQ18-STC18 - approx. 15 kg
MT24-MTQ24-MTC28- approx. 30 kg

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3. INSTALLATION AND IGNITION
3.1 CHOOSING THE CORRECT STOVE SIZE
When calculating the stove size it is necessary to consider the volume of the room where it is to be
installed, the hourly requirement of calories to heat the room and the hourly consumption of pellets
(kg).
The following calculations show how to choose the correct stove size:
Volume of room = Length x Width x Height
Kcal/h required for room = 40 approx. (depending on how the building is insulated)
1 kg top quality pellet = 4.9 kW = 4214 kcal/kg
example: room measuring 8m x 5m x 2.7m = 108 m³
108 m³ x 40 Kcal/h = 4320 kcal/h total requirement for the room
Pellet consumption per hour:
STQ14 1,4 kg/h at maximum speed
ST18-STQ18-STC18 1.8 kg/h at maximum speed
MT28-MTQ28-MTC28 2.8 kg/h at maximum speed
1,4 kg/h x 4214 Kcal/kg = 5899 Kcal/h output
1.8 Kg/h x 4214 Kcal/kg = 7585 kcal/h output
2.8 kg/h x 4214 Kcal/kg = 11799 kcal/h output
For the room above, we recommend installing a ST 16 stove.
3.2 UNPACKING AND POSITIONING THE STOVE
The packed stove has already been assembled and is ready for installation. We recommend keeping
it upright when you move it, using appropriate equipment and taking special care with the glass
door. After positioning the stove in the chosen place unpack it, taking care to remove all packing,
which could harm its operation. Align the feet so that the stove is perfectly level and install the
heatproof surface underneath to protect the floor. Using the screws supplied, install the control
panel on top of the stove. To check that the white plastic spar of the sensor is straight.
When disposing of the packing, follow the regulations in the country where the stove is being
installed.
3.3 THE LOCATION OF THE STOVE AND CONNECTION TO A CHIMNEY
The stove should be connected to an 80 mm diameter exhaust flue with a 90° connection.
If the exhaust flue is connected to a chimney, the latter should be inspected and cleaned of all soot
residues and its diameter should be at least 130 mm.
The pipe connectors should be sealed by gaskets or can be sealed with high temperature silicone.
You should make sure that your chimney flue complies with current UNI standards.

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It is very important to use only and
exclusively material that is suitable for this
type of installation therefore it must be
resistant to high temperatures.
Installation should be carried out by
specialised, skilled personnel.
If the floor under the stove is made of inflammable material, you must insert a heat-resistant
surface between the floor and the stove and comply with minimum safety distances.
MINIMUM SAFETY DISTANCES
From non-inflammable
objects:
Behind stove > 100 mm
At side of stove > 100 mm
In front of stove > 400 mm
From inflammable objects:
Behind stove > 200 mm
At side of stove > 200 mm
In front of stove > 800 mm
The exhaust flue must be installed in compliance with a number of standards:
UNI 7129/92 standards.
Among the countless assumptions, it is necessary to bear the following in mind:
use only products that are suitable for a combustive environment, that are resistant to heat and
deterioration and are made using insulating material.
The smoke exhaust flue should follow a vertical path with no interruptions.
The inside diameter of the flue should be slightly greater than that of the stove.
The chimney flue should have the following dimensions:
- height up to 5 m 600 sq. cm
- height from 5 to 7 m 400 sq. cm
- height from 7 to 9 m 300 sq. cm
- height over 9 m 250 sq. cm
Our pellet stoves are made with an exhaust flue with a diameter of 8 cm. Therefore they do not
need a particularly tall chimney flue (minimum 1.5 m).
This gain in length is possible because the smoke is driven into the flue by a fan, so that the
negative pressure created by the chimney flue is actually reproduced artificially by the stove itself.
Ventilating the premises:
For correct combustion, the room where the stove is situated should be permanently ventilated by
an air vent from the outside of the building.
Air intake:
The stove has an air intake on the back to improve combustion. The intake air should be taken from
the room where the stove is situated. If the room where the stove is situated contains other
appliances such as gas boilers, cookers etc., it is important to guarantee air change for all the
appliances.

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3.4 IGNITION, STARTING UP
Before using the stove make sure all the moving and movable parts are positioned correctly. Also
make sure the ash box is in position; remove any labels and adhesives from the glass, otherwise
they may leave a permanent mark.
Make sure that the voltage of the appliance corresponds with that of the mains power supply.
Then connect the cable supplied with the stove to a 220 V 50Hz power outlet and turn the
switch on the back to “I”= ON (see section 8 page 18). In this position the display will show the
message “Stove OFF” with the various preset functions.
Press the ON button on the manual control panel of the stove for at least 3 seconds or on the
remote control; this will start the ignition cycle. At this point the display will show the message
Ignition No. 1 in progress; the resistance (“ign. torch”) will start to heat up to a high
temperature while pellets are deposited in the burner to start combustion.
The ignition cycle can be explained as follows:
1. When ON is pressed on the control panel, the ign. torch will start to heat up as the
smoke exhaust fan starts at speed 6, for about 60 seconds.
2. The pellets begin to fall into the burner at a continuous rate for about 160 seconds.
3. The fan starts to work at 5 speed in order to reach the temperature setting for the
smoke temperature sensor.
4. At this point the ign. torch goes off and the fan smokes it works at the most (6
speed) for 3,30 minutes for to turn on the pellet.
5. The stove starts the selected recipe and power.
6. At temperatures below 3 ° C too low for the heating element to glow or temporary
non-functionality of the resistance can be used to ignite the firelighter. Insert a piece
of the crucible firelighter well lit, close the door and press ON / OFF.
IMPORTANT: the startup stage lasts 1 CYCLE of 27 minutes before signalling error 1. After this
stage the display will show the message Stove Lit, Automatic or Manual mode, Date and Time, and
it will be possible to make adjustments to the combustion. The stove is normally lit after 3 minutes.
IMPORTANT: the ROOM circulation fan will start as soon as the temperature of the exhaust smoke
will be 80°C.
If the stove is not lit within 1 cycle the message error1 will appear. The possible causes are:
No pellets
Pellets blocked
Grate obstructed by dirt
Faulty resistance (ign. torch).

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Lighting the stove for the first time
The first time you light up the stove it will be necessary to wait about 5 minutes for the pellets in
the tank to reach the combustion chamber, because the cylinder containing the feed screw has to
be filled. So if 1 cycle is insufficient, switch off the stove and repeat the operation of lighting.
3.5 DIAGRAM EXPLAINING DISPLAY SEQUENCES

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3.6 SWITCHING OFF/EXTINGUISHING THE STOVE
WARNING: DO NOT DISCONNECT THE POWER SUPPLY
If you want to extinguish the fire and switch off the stove you must proceed as follows:
Press the OFF button on the manual control panel of the stove for at least 3 seconds or on the
remote control; this will start the extinguishing cycle: the display will show the message Cooling
in progress and the feed screw will stop turning. Depending on the temperature reading from
the thermometer inside the stove, the smoke exhaust fan will continue to work for several
minutes in order to extract the final combustion residues, and then for a further 10 minutes until
there is a complete stop.
Warning: never ever disconnect the power supply while the stove is in operation, and in particular
do not switch off while it is being extinguished because this would prevent cooling and correct
smoke extraction.
4. HOW TO PROGRAMME THE STOVE
4.1 DESCRIPTION OF CONTROL PANEL
The control panel is positioned on top of the stove to make it easy for the user to operate. It has
the following keys:
Main display: this shows the various menu functions, the date and time, ignition and
extinguishing. To light up the display just press any key on the keypad. It will remain lit for
several seconds.
ON key: Pressing this for at least 3 seconds will start up the stove, the display will light up and
the message “Ignition No. 1 in progress” will appear.
OFF key: Pressing this for at least 3 seconds will extinguish the stove, the display will light up
and the message “Cooling in progress” will appear.
UP Key: Pressing this repeatedly will scroll forward through the various menu functions
and modify the data. Keeping the key pressed down will fast-scroll the cursor (when
inserting numbers for example).
Down key: Pressing this repeatedly will scroll backwards through the various menu
functions and modify the data. Keeping the key pressed down will fast-scroll the cursor
(when reducing numbers for example).
Right key: Pressing this will scroll to the right through the various functions in a single
menu.
Left key: Pressing this will scroll to the left through the various functions in a single
menu.

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+ (increase) - (decrease) key: Increases or decreases the temperature setting that must
be reached by the stove.
+ (plus) - (minus) key: selects the programme setting.
SET key: Saves the changes in the function menus.
4.2 SELECTING THE FUNCTION MENUS
Changing the function settings in the menus will allow you to personalise stove operation. To enter
the various menus you have to press any key on the control panel to light up the display.
The available menus and their functions are explained below:
1. THE DATE AND TIME MENU
Before explaining use of the DATE-TIME menu, here is a list of the possible day and number
settings:
Day of the week: Su, Mo, Tu, We, Th, Fr, Sa, MF,SS
Hour setting from 00 to 23
Minutes setting from 00 to 59
Day of month setting from 01 to 31
Month setting from 01 to 12
Year setting from 00 to 99
When the display lights up, press the UP key once to enter the DATE-TIME menu; press the SET
key to confirm. The day of the week will start flashing
example: Tuesday time 17:02 on 26/07/06
Tu 17:02
26/07/06
To change the day of the week press the UP or DOWN
key to move backwards or forwards to the desired
day (e.g. Tu).
Tu 17:02
26/07/06
press the RIGHT key
Press the UP or DOWN key as before to move
backwards or forwards to the desired hour (e.g. 17).
Tu 17:02
26/07/06
press the RIGHT key
Press the UP or DOWN key to move backwards or
forwards to the desired minutes (e.g. 02).
Tu 17:02
26/07/06
press the RIGHT key
Press the UP or DOWN key as before to move
backwards or forwards to the desired day of the
month (e.g. 26).
Tu 17:02
26/07/06
press the RIGHT key
Press the UP or DOWN key as before to move
backwards or forwards to the desired month (e.g.07).
Tu 17:02
26/07/06
press the RIGHT key
Press the UP or DOWN key as before to move
backwards or forwards to the desired year (e.g. 06).
After you have inserted the year, save the setting by pressing the SET key on the control panel.

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2. RECIPE SELECTION
The stove is predisposed to manage 5 different operation recipe. The recipes are different under-
programs for the 5 operation powers. The recipe 1 supplies the quantity minimal feed, while the
recipe 5 supplies the maximum quantity. If as an example we use pellet of good quality, the stove
works well to recipe 2 or 3. If we only find on the market a pellet of inferior quality with low caloric
power we have to increase the stove power in order to compensate the deficiency of the pellet and
therefore we have to use the recipe 5. Vice versa if the quality of the pellet is optimal quality we
may use recipe 1.
Comparable the power variation deriving from different selected recipe, can be used to install the
stove in remarkablly various environment:
- if as an example the stove is installed in mini flat you can save on the pellet quantity utilizing the
recipe 1 or 2;
- if instead the stove is installed in a great environment with little thermal isolation you have to
utilize recipe 4 or 5.
1)Rec. 1 minimum value
2)Rec. 2 -----------------
3)Rec. 3 medium value
4)Rec. 4 -----------------
5)Rec. 5 maximum value
1
2
3
4
5

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3. THE OPERATING MODE MENU
In the OPERATING MODE menu it is possible to choose between MANUAL and AUTOMATIC operation
of the stove.
If the system is set in MANUAL mode the stove will only work (or stop) when the ON (or OFF) keys
are pressed on the control panel or on the remote control.
In AUTOMATIC mode the stove is programmed with the timer to light up and extinguish in set time
bands.
To change the OPERATING MODE setting, with the display lit up press the UP key 3 times to
enter the SET OPERATING MODE menu.
OPERATING MODE
Press the RIGHT key to change the setting. Press
the SET key to save the setting and exit the menu.
On the right of the display the setting for this function
will appear (MAN. or AUTO).
4. THE WEEKLY PROGRAMME MENU
The ST16-STQ16 and MT24-MTQ24 stoves can be programmed to a weekly timetable set in time
bands. This means it is possible to light up or extinguish the stove at preset times without the
intervention of the user.
The following is a list of some of the abbreviations used in the programmer:
F +number = programmable time band. 15 different time bands are available.
P + number = setting for programme setting .
Su = Sunday; Mo = Monday; Tu = Tuesday; We = Wednesday; Th = Thursday; Fr = Friday
Sa = Saturday
MF = from Monday to Friday; SS = Saturday and Sunday
Enab. = enabled; Disab. = Disabled
Before entering the WEEKLY PROGRAMME menu make sure that the OPERATING MODE is set to
AUTOMATIC, as explained in the previous section.
example: SS, time 08:30, 20 degrees, Recipe programme 3, ignition, Enabled.
With the display lit up press the UP key 4 times to enter the weekly programme menu.
WEEKLY
PROGRAMME
Press the SET key to enter the settings.
F1 SS 00:00 00°
P1 ON Enab.
Enter the day sequence directly. Using the UP
and DOWN keys select the desired day of the week
(in our example: SS). Press the RIGHT key to pass
to the next sequence.
F1 SS 08:00 00°
P1 ON Enab.
Enter the hour sequence. Using the UP and
DOWN keys select the desired hour (in our
example: 08) Press the RIGHT key to pass to the
next sequence.
F1 SS 08:30 00°
P1 ON Enab.
Enter the minutes sequence. Using the UP and
DOWN keys select the desired minutes (in our
example: 30) Press the RIGHT key to pass to the
next sequence.

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F1 SS 08:30 20°
P1 ON Enab.
Enter the temperature sequence. Using the UP
and DOWN keys select the desired temperature in
°C (in our example: 20). Press the RIGHT key to
pass to the next sequence.
F1 SS 08:30 20°
P3 ON Enab.
Enter the menu for programming the stove power.
Using the UP and DOWN keys select the desired
programme number (in our example: 3) Press the
RIGHT key to pass to the next sequence.
F1 SS 08:30 20°
P3 ON Enab.
Enter the ignite/extinguish ON/OFF menu. Using the
UP and DOWN Keys select ON for ignition or
OFF for extinguishing (in our example: ON). Press the
RIGHT key to pass to the next sequence.
F1 SS 08:30 20°
P3 ON Enab.
Enter the menu for setting enabled/disabled. Using
the UP and DOWN keys select the desired
setting (in our example: Enab). Press the SET key to
save the setting and exit the menu.
If the programmed time band is disabled, the settings will be stored but the stove will ignore them.
To exit the WEEKLY PROGRAMME menu press the SET key several times. In this way you will skip
through all the time bands yet to be programmed. Make sure that, for each band that you skip
through, the key for enabling the programme is not pressed.
To scroll through the data quickly keep the corresponding key pressed: UP DOWN
RIGHT LEFT
5. THE TIMER COUNTDOWN MENU
If the house is to be left empty for several days, for work or holidays for example, or to switch the
stove on or off at times that are not included in the programmes for ignition and extinguishing, use
the Timer Countdown programme.
The programme enables a countdown of up to 99 hours from the departure time.
To enable the TIMER COUNTDOWN function proceed as follows:
example: programme for ignition with programme 3 in 94 hours’ time. Data inserted on Monday
morning at 09.00, the programme starts on Friday morning at 07.00.
With the display lit up, press the UP key 5 times to display the TIMER COUNTDOWN menu.
TIMER ON/OFF
Press the SET key to enter the display.
Timer ON Prog. 3
94 hours Enab.
You directly enter the sequence for igniting or
extinguishing the stove with the timer. With the UP
and DOWN keys 0select the desired control (in
our example: ON). Press the RIGHT key to pass to
the next sequence.
Timer ON Prog. 3
Enter the recipe programme sequence. Using the UP

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94 hours Enab.
and DOWN keys select the number of the desired
programme (in our example: 3). Press the RIGHT
key to pass to the next sequence.
Timer ON Prog. 3
94 hours Enab.
Enter the sequence for setting the number of hours to
countdown. Using the UP and DOWN keys
select the desired number of hours (in our example:
94). Press the RIGHT key to pass to the next
sequence.
Timer ON Prog. 3
94 hours Enab.
Enter the menu for enabling or disabling the
programme. Using the UP and DOWN keys
select the parameter setting. (in our example:
Enab.). Press the SET key to save and exit.
If the programmed timeband is disabled, the settings are stored but the stove will ignore them.
6. THE SELECT LANGUAGE MENU
In addition to Italian, it is possible to select other languages for the messages on the display.
With the display lit up press the UP key 6 times to change the language and enter the SELECT
LANGUAGE menu:
SELECT LANGUAGE
Press the RIGHT key to change the language.
Apart from Italian, English, French, German and
Spanish are available. Press the SET key to save and
exit. The display will then use the selected language.
7. THE BUZZER MENU
The buzzer will sound a beep whenever a key is pressed on the control panel. It can be enabled or
disabled.
With the display lit up press the UP key 7 times to enter the BUZZER menu:
BUZZER
Press the RIGHT key to disable or enable the
buzzer.
Press the SET key to save and exit.
8. SETTING THERMOSTAT MODE
The stove has an internal thermostat to monitor room temperature. Nevertheless, it is possible to
connect the stove to a thermostat in the room it is heating in order have more sensitive control of
room temperature.
With the display lit up, to set THERMOSTAT MODE, press the UP key 8 times to enter the menu:
THERMOSTAT MODE
Press the SET key to enter the menu.
At this point you can select from 4 types of thermostat:

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Internal thermostat or by radio control
External manual thermostat
Electronic chronothermostat
GSM (optional), can be selected in automatic mode
For the first 2 options (Internal and external thermostat), confirm the selection with the UP or
DOWN key then press SET to save and exit.
For the electronic chronothermostat and (optional) GSM it is also necessary to save the chosen
recipe programme as follows:
e.g. chronothermostat with recipe programme No. 3:
Thermostat Mode
CHRONO P3
After entering the Thermostat Mode menu, press the
UP or DOWN key until you reach CHRONO
thermostat. Press the RIGHT key to enter the
recipe programme menu.
Press the UP or DOWN key to select the
desired number (in our example: 3).
Press SET to save and exit.
9. SETTING THE IR (infrared) REMOTE CONTROL (optional)
With the infrared remote control you can light and extinguish the stove from the comfort of your
armchair. To do this it is necessary to programme the remote control the first time it is used.
With the display lit up, to select the menu for setting the IR REMOTE CONTROL, press the UP
key 9 times and enter the menu.
IR REMOTE CONTROL
Disabled
Press the RIGHT key to enable the remote control.
On the remote control, press 1 of the 2 keys until there is a long beep. Press SET to exit.
10. SETTING ASSISTANCE MENU
The function of this menu allows to verify the working hours of the stove.
With the display lit up, press the UP key 10 times and enter the ASSISTANCE MENU:
Press the SET key to enter the menu:
Here they are visualized the total working hours of the stove
Press the SET key to enter the menu:
TOT. WORK. HOURS
00015
TECH. ASSISTANCE

17
Here they are visualized the past hours from the last technical assistance
To reset the hours after having performed the assistance. Press the UP -key of
the program until the sound beep signal to reset the hours.
Press the SET key to confirm and go out.
11. SETTING DEBUG MENU
At any time during the working cycle, it is possible to verify the operating status of the stove using
the DEBUG menu.
With the display lit up, press the + key for the programme for at least 5 seconds to enter
the DEBUG menu.
DEBUG
Press the SET key to enter the menu.
At this point the display will show data for the smoke temperature (Tf), room temperature (Ta) and
the preset temperature (Ti):
e.g. as follows:
Tf Ta Ti
027 1.6 28
Press the UP key to bo to the next display which will show the screw speed (Vc), the air
circulation fan speed (Va), the smoke exhaust fan speed (Vf), the recipe setting (Pi) and the time in
minutes and seconds of the cycle in progress (Tcic).
Vc Va Vf Pi Tcic
0 1 0 3 00:00
Pressing the UP key again will enter a third menu showing the data for the flow switch (NTc =
Trif + TRis) with the possibility of adjusting this when the stove is switched off:
NTc TRif TRis
000 27.4 28.2
To change the settings for the flow switch, stove OFF
press the (minus) key for the programme
Pressing the UP key again will enter a menu that is not available to the user. Press the +
(plus) key and the buzzer will sound to exit the DEBUG menu.
HOURS F.
ASSISTANCE
00005

18
12. SETTING THE SERVICE MENU
The SERVICE menu has been especially designed to improve stove performance depending on the
system in which it is installed and the quality of pellet.
For example, if you have a tall chimney flue and you observe decreased pellet combustion you can
change the speed of both the air circulation fan and the smoke exhaust fan.
WARNING!!!
Do not increase or decrease smoke removal rate or circulation fan speed by more than 2 points as
this could cause a malfunction in the stove programme.
With the display lit up, press the + key for the programme for at least 5 seconds to enter the
SERVICE menu.
SERVICE
Press the SET key to enter the menu.
At this point the display will show the values for the 5 preset smoke exhaust fan speed settings,
which are shown below:
ST14-ST18 MT28
F V1 V2 V3 V4 V5
48 50 52 54 56
F V1 V2 V3 V4 V5
49 52 54 56 58
Press the UP and DOWN keys to change
the values. Press the RIGHT key to shift the
cursor.
P.S. In case ERR. CODE 3 (values zero setting) of the control panel display, to insert again the
values for the 5 preset smoke exhaust fan speed.
Pressing SET to change display and enter the section for circulation fan speed.
ST14-ST18 MT28
A V1 V2 V3 V4 V5
54 59 61 63 67
A V1 V2 V3 V4 V5
54 57 59 61 67
Press the UP or DOWN key to change the
values. Press the RIGHT key to shift the cursor.
To save and exit press the SET key

19
5. FORMULATION PARAMETERS ACCORDING TO THE TYPE OF PELLET
TEST OF VOLTAGE IN THE SMOKE EXHAUST FAN ACCORDING TO THE PLANNED NUMBER:
PLANNED NUMBER
VOLT OF FAN
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
105
110
115
120
125
130
135
140
145
148
153
158
163
166
170
176
181
186
190
193
197
200
203
208
210
212
214
219
224
We list some examples of parameters for various types of pellet
With pellet of white fir, red fir
F V1 V2 V3 V4 V5
48 50 52 54 56
F V1 V2 V3 V4 V5
49 52 54 56 58
J
O
B
F
I
E
L
D
REGULATION SMOKE EXHAUST FAN
Press
+
RED key until seeing
SERVICE menu. After, pressing SET key will
appear the numbers for every speed.
If you decrease the planned numbers on the
display, the voltage of the smoke exhaust fan
will reduce therefore less air will be expelled
and less air will enter.
If you increase the numbers, the voltage of
smoke exhaust fan will increase in power
therefore more air will enter.
If the pellet is damp or it has a greater
calorific power or in the grate they are
residual, it is necessary more air.
(P.S. For a good regulation: the pellet inside
the grate has to slightly stir)
REGULATION AIR CIRCULATION ELECTRIC
FAN
Take the same way proceeding as for the
regulation of the smoke exhaust fan.

20
With pellet of beech and mixed fir
F V1 V2 V3 V4 V5
50 52 54 56 58
F V1 V2 V3 V4 V5
52 54 56 58 60
With pellet of hard beech
F V1 V2 V3 V4 V5
52 54 56 58 60
F V1 V2 V3 V4 V5
54 56 59 62 65
Industries providing the pellet does not produce it all in the same way, and the result may be a
pellet pressed more or less, more or less long, etc. .. etc. .., and the result is that the fall of the
pellets in the grate can be of different amount. How Cosdep, we program the fall of the pellets is of
160 seconds, this figure can be changed from the front screen commands, if the pellet is shorter
you should decrease the number of seconds (eg 160 to 120 seconds) if the pellet is pressed and the
longer you have to increase the time.
To enter the EPROM to hold your stove - blue, just out in front eprom crush the green arrow to the
right and keep it pressed until the code gets to 103 then use the arrows or the other or down to
increase or decrease the seconds according to your needs.
6. CLEANING, MAINTENANCE AND REPAIRS
PREMISE: Opening of the lateral panels
For the eventual repairs to act in the following way
To remove the cable
from its connector,
pressing the lever
under the connector
To remove the above
cover
To unscrew the
screws hold together
the lateral coverings
To remove the
lateral coverings
6.1 EVERY DAY:
Cleaning the grate
1. Remove the grate and clean it. Use
a pointed tool to unblock the holes
2. Empty the ash box and vacuum
the box beneath
3. Vacuum the hole for the lighter
4. If necessary clean the glass and
the door