Mareli Systems PS 13 User manual

PS 13/18/24/30 Pellet stove
Assembly and exploitation manual
e present stove is designed and manufactured according to
Standards: BNS (Bulgarian National Standard) EN 14785-2006
Mareli Systems
PB 13/18/24/30 Pellet stove
Assembly and exploitation manual

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Mareli Systems
Observing the prescriptions of the present manual is in the user’s favour and is one of
the warranty conditions. Compliance with this instruction is in the interest of the con-
sumer and one of the warranty terms.
• is appliance is not intended for use by people (including children) with limited physical, senso-
ry or mental abilities or lack of experience and knowledge. e installation must be performed by
a qualied expert in the eld of heating installations or authorized by “Marelli Systems’ service. e
place and way of connecting the stove should be selected carefully in accord with the safety instruc-
tions. Install away from ammable objects!
• Before starting any operation, the user must read and fully understand the contents of this in-
struction manual. Incorrect setup may cause hazardous conditions and / or incorrect function of
the stove;
• Do not wash the stove with water. Water can get inside the replace and damage the electronics
and cause an electric shock;
• Do not put clothes to dry on the stove. Any clothes hangers and other objects must be located
within a reasonable distance from the replace. Fire hazard;
• e user is fully responsible for the proper use of the product which exempts the company from
liability of any users errors or misbehaviour or omissions;
• Any intervention or replacement that is made by unauthorized people or using non original spare
parts for the product can be risky for the user and release the company from all liability;
• Most surfaces of the stove are extremely hot (the door handle, glass, ue pipe, etc.). Avoid contact
with these parts before assuring yourself that you us temperature resistant gloves as well as suitable
temperature resistant instruments;
• Under no circumstances should the re be ignited with the door open or broken glass;
• e product must be electrically connected to a system equipped with an eective earth conduc-
tor. (Must be grounded);
• Turn o the stove in case of failure or malfunction;
• All unburned pellets in the burner aer each unsuccessful attempt ignition must be removed
before a new ignition;
• When installing the product all re safety requirements must be respected
If there is a re in the ue pipe, extinguish the stove, disconnect the power cord and never open the
door. Call competent authorized service technicians;
• Do not light the stove with ammable materials if the ignition system failed;
• Periodically check and clean the smoke outlet ducts of the stove (connection to the ue pipe);
• Pellet stove is not a cooker;
• Always keep the cover closed;
SAFE DISTANCES:
When installing the product a safe distance of at least 600 mm must be respected. is
distance applies to the product located near materials of B or C ammability level. e
safe distance is doubled if the product is close to materials of C3 combustion level.
INSTRUCTIONS FOR SECURITY:

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Mareli Systems
1. PURPOSE
e stove is purposed to heat domestic and public premises by the means of pellets.
e stove is equipped with a steel water jacket designed for heating systems with water
temperature up to 90º C at a maximum super pressure up to 0,15 Mpa. Tests are run at
pressure of 0,3 Mpa.
e stove is designed and manufactured to work with A-class pellets only
( DIN plus 51731 ) with the following characteristics:
What are the pellets.
e pellets are produced by compressed wood-
en waste le from the production of various
furniture, sawmills and others. is type of
fuel is environmentally friendly because in
the production process no agglutinate agents
(glues, resins and others) are added. Actual-
ly, the integrity of the pellets is guaranteed by
the lignite – a natural ingredient contained in
the wood itself. While the wood has a calorie
capacity of 4.4 kW/kg (15% humidity at 18
months drying), the pellets have 5.2 kW/kg.
• Material 100% pure conifer or broad-leaf
wood;
• Diameter Ф6/8 mm;
• Length 20-30mm;
• Calorie capacity 5.2 kW/kg;
• Ash content < 8%;
e use of pellets with characteristics dierent from the recommended may result in
power decrease, unstable and inconsistent work of the stove.
Info: To ensure the proper work of the stove the pellets must be stored in a dry place!
Recharging of pellets can be done during work, with the following sequence:
1. Open the bunker (located at the top rear of the product);
2. Fill the hopper, using non-combustible container;
3. Close the lid of the bunker;
Attention!!! Use gloves! Beware of hot surfaces!

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Mareli Systems
2. TECHNICAL DATA
Maximum output
KW
13
18
24
30
Heated area
m³
250
350
500
600
Height H
mm
880
1005
1005
1005
Width W
mm
555
568
618
634
Depth D
mm
556
632
633
674
Pellet bunker volume
kg
22
30
35
35
Fresh air pipe
ф mm
48
48
48
60
Exhaust gas pipe
ф mm
80
80
80
80
Weight
kg
165
180
190
215
Fuel type
Pellets
Φ6-Φ8
Pellets
Φ6-Φ8
Pellets
Φ6-Φ8
Pellets
Φ6-Φ8
The chimney draft
Pa
12
12
12
12
Electrical consumption
V/Hz
60/310
60/310
60/310
60/310
Electrical supply
V/Hz
230/50
230/50
230/50
230/50
Water jacket capacity
L
26
31
37
41
Working pressure
bar
0,5-2,0
0,5-2,0
0,5-2,0
0,5-2,0
Space heating output (PS)
Kw
1
2
3
4
Space heating output (PB)
1
1
1
1
Working at environment temperature
C
5-40
5-40
5-40
5-40
Humidity at 30
O
C environment
temperature
%
85
85
85
85
Energy conversion efficiency
%
>94
>92
>92
>93
Co Emissions
Mg/m3
<300
<300
<300
<300
Temperature of the flue gas
C
110
141
143
145
Max. water temperature
C
90
90
90
90
Display
Pellet Bunker
Auger
Exhaust gas fan
Combustion
Chamber
Igniter

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Mareli Systems
3. ASSEMBLY
3.1 General conditions.
All national, regional and European requirements for safe operation of the appliance
must be respected during installation and operation.
Prior to installation, load capacity of the place where the stove will be intended must be
ensured. e weight of the stove is specied in the technical data table.
To ensure the correct and safe operation of the stove, the following conditions must be
met:
e installation of the stove and its accessories must be carried out by authorized per-
sons.
e oor where the stove is installed should be at and horizontal, made of re-resist-
ant materials at least 1500 mm in front of the replace and not less than 400 mm on
both sides and at the back of the wall.
Minimum distances from the wall to the stove should be at least 400 mm. e mini-
mum space in front of the replace should be 1500 mm. e minimal distance of the
stove from combustion materials should be no less than 1500 mm.
e door of the replace should be closed tightly during the work process. Opening it
during work is absolutely forbidden.
When installing the stove, the connections between the individual pipes and the chim-
ney rooop must be dense.
When the re is rst ignited, a smell occurs as a result of the paint being heated.
e replace is painted with heat-resistant paint, which achieves its ultimate resist-
ance aer repeated use of the stove. THEREFORE KEEP OUTSIDE INTERACTIONS
WITH THE COATING TO A MINIMUM in order not to damage it.
A. A neighboring wall.
B. e rear wall.
C. Sidewall.
D. Floor protection.
E. Ignitable element.
1 = 400 (mm)
2 = 600 (mm)
3 = 400 (mm)
4 = 300 (mm)
5 = 1500 (mm)
6 = 120 (mm)
7 = 800 (mm)

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CHECK ITEMS
BEFORE INSTALLATION
Chimney exit
Chimney
Connection to
chimney
Connection to
the stove
Security
distances
e oor
Inlet air
e chimney
revision door

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3.2 Basic rules and prescriptions.
e stove with water jacket operates on water heating boiler principle.
e advantage of this type of heating system is the maximum utilization of the heat that is pro-
duced during the combustion process. With this method the heat from the combustion chamber
is taken to remote and hard to reach for a normal heat exchange premises in order to maintain an
even temperature and warmth comfort.
• Ensure that every branch and element of the installation is airtight at every single moment of its
exploitation.
• All elements of the installation must be protected from freezing, especially if the enlarging pot or
other parts are situated in non-heated premises.
• e circulation pump can be chosen by the capacity required by using the following formula:
G=0,043. P , (m³/h), in which:
P, kW is the heat output of the water jacket. e circulation pump can be turned on and o
by the means of a thermostat in combination with an electric switch
• e rst service cleaning of the pump’s lter must be done immediately aer testing the installation.
• If an old installation is going to be used it must be washed several times to ensure the removal of any
accumulated dirt on the surfaces of the water jacket.
• Do not drain the circulating water of the installation during the non-heated season.
• Chemical treatment of the circulating water is not recommended.
Chart 1 is a basic combined chart for heating with solid fuel stove, electrical boiler equipped with
water serpentine and a solar panel. For economy and eciency of the system and a constant avail-
ability of cheap hot water a qualied assembly of the automatic shier controlling the thermal
ows to and out of the solar panel and the boiler is required.
Chart 2 shows a one storey heating with a compulsory circulation. e advantage of this chart is
that the water-conducting elements can be hidden.
e enlarging pot must have a direct atmosphere connection which means that it must be placed
on the highest spot in the system. Its capacity can be determined as 0,1 part of the total capacity
of the system.
e lling or unloading of the system is done via a hose through a facet mounted in the lowest
area. Mounting a membrane enlarging pot is permitted when constructing a closed type system.
During the initial 3-4 start-ups a condensation on the surfaces of the water jacket may occur
which depending on the fuel’s humidity and the temperature of the incoming water may reach
0,3 litr on a single start-up. e accumulating char reduces the temperature dierence and the
condensation.
• “Mareli Systems” provides a warranty and out of warranty service and replacement of the
water jackets.
• e warranty is not valid in case of a stove with a swollen water jacket which is a result of
pressure increase in the system and improper connecting.
• e water jackets are tested under pressure of 400 kPa (4 bar).
It is recommended that the assembly is performed by an authorized specialist.
Radiator
Deaerator
Expansion vessel
Return Valve
Lyra
Boiler
Stove
Pump
RadiatorRadiatorRadiator

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3.3 Assembly of the duct components.
Duct components and pipes
For the assembly of the duct pipes the use of non-ammable materials, resistant to the ammable
products and condensation is obligatory. e assembly must be performed in such a manner so
it guarantees the airtight sealing and prevents condensation. If possible, avoid adding horizontal
sections. Direction shi is done by using knee joints with a max angle of 45˚.
For heating devices equipped with a smoke ventilator, i.e all of the “MARELI” stoves, the follow-
ing instructions must be observed:
Chimney
e chimney or the duct component must conform with the
following requirements: to be airtight, waterproof and prop-
erly insulated, to be constructed with materials resistant to
the normal mechanical wear and to the heat coming from the
combustion products and condensation.
• To be kept away from ammable materials.
e recommended chimney dra at work - from 12-20 Pa.
• Horizontal sections must have a minimum incline
of 3° upwards;
• e length of the horizontal sections must be as
short as possible, but without exceeding 3 m;
• More than four direction shis are forbidden,
including the cases where a T-shaped element is
used;
• e duct components must be airtight and to be
insulated if extending outside the premises in
which the replace is installed;
• e duct components must allow a soot cleaning;
• e duct components must have a constant sec-
tion. A section change is allowed only in the
chimney joint;
CHIMNEY EXITS (ANTI-WIND)
45
5 m (MAX)
(MAX)
Attention!!! In case of a re hazard turn o the product from the display. is will stop the oxygen
ow to the product.
Roof incline ≥ 10 °
Height above the roof = 40 cm
90°
Distance measured at 90 ° from
roof area = 1.3 m

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Mareli Systems
3.4 Types of connection to the chimney
Chimney exit
Moisture channel
Chimney
ermal insulation
External wall
Connection to chimney
Flue gas connection
Heat generator
“T”
connection
e chimney
revision door

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Mareli Systems
3.5 Air intake
Suction pipe or air intake is placed in the back and has a circular section with a diameter of 48 mm.
e combustion air can be aspirated:
• From the camera, as long as it is near an air intake communicating with the outside wall hav-
ing a minimum area of 100 cm2, properly positioned and protected by a grid.
• Or by connecting directly outside with a suitable tubing having an inner diameter of 48 mm
and a maximum length of 1.5 M.2
4. Cleaning
Cleaning the replace should be done only when cold. e cleaning of the combustion chamber
must be carried out daily. For this purpose, make sure the replace has ceased operation and is
completely cold. Pull up the combustion pot and remove it from the stove and then clean it from
soot. When removed fuel pot at the bottom of the combustion chamber opens a hole designed for
the accumulated ash. Collect ashes in the ashtray and return fuel pot in place and then close the
door. e replace is ready for operation.
Cleaning of ues and chimneys are conducted once every 1.5 tons of fuel used
Once clean audits and close the cleaning lid. Check that the bolts are tightened well. Every time
you open check for violations of the isolation seal. If this happens do not use the product until the
isolation seal is repaired.
Капак за почистване
2
34
1

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Mareli Systems
Cleaning the glass
Use an non-abrasive
cloth
Clean the ue gas
outlet
Cleaning the
pellet bunker
Combustion
chamber
Clean the
ashtray
PS

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Mareli Systems
PB
Cleaning the glass
Use an non-abrasive
cloth
Cleaning the
pellet bunker
Clean the ue gas
outlet
Combustion
chamber
Clean the
ashtray

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Mareli Systems
COLD WATER
HOT WATER
CHIMNEY
OUTLET
AIR INLET

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Mareli Systems
5 Safety and unexpected risks
Terms of danger may arise in the following cases:
• Automated pellet stove is used incorrectly;
• e unit is installed by unqualied personnel;
• e safety instructions described in this management are not met;
Unforeseen risks:
Pellet replace “Mareli” has been designed and manufactured in accordance with the safety re-
quirements on the national, regional and European levels. Although considered possible risks
arising from improper use, you may experience the following risks:
• Risks of spreading combustion outside replace - opening the door of the chamber of the
replace may fall hot / burning particles (as hot ash and small particles burning coal), which
could lead to a re in the heated room. It is therefore necessary that the product always works
with a tightly closed door. It can only be opened when the product has completely cooled
down;
• Risks of burns caused by high temperatures as a result of the combustion process in the
combustion chamber and / or access to the door of this burn chamber when the product is
not completely cool;
In case of re hazard the product should be stopped by the controller and power supply until the
cause of the problem is determined.
Maintenance program
At each
ignition
Twice
per season
Weekly Annual
Combustion chamber
Clean the ashtray
Glass
e Door
Clean the ue gas outlet
Door seals
Chimney
V
V V
V
VV
V
V
V

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Mareli Systems
The main frame shows:
time and date, chrono activation, combustion
power and recipe, functioning state, error code,
main temperature, main thermostat,
summer/winter mode.
Button
Function
P1
P2
P3
P4
P5
P6
Exit Menu/Submenu;
Ignition and extinguishing (push for 3 seconds), Reset errors (push for 3 seconds), Enable/disable chrono;
Enter in User Menu 1/submenu, Enter in User Menu 2 (push for 3 seconds), Save data;
Enter in Visualizations Menu, Increase
Activation chrono time band
Enter in Visualizations Menu, Decrease
Led
Function
D1
D9
D2
D10
D3
D11
D4
D12
Igniter ON
Auger ON
Pump 1 ON
V2: Pump 2 ON
External Chrono reached
Lack of pellet
Local Room Thermostat reached
Sanitary water demand
Er01 - Security Error High Voltage 1. It may also intervene with the system o;
Er02 - Security Error High Voltage 2. It can only intervene if the Combustion fan is active;
Er03 - Extinguishing for low exhaust temperature or missing light in the brazier;
Er04 - Extinguishing for water over temperature;
Er05 - Extinguishing due to high exhaust temperature;
Er06 - Pellet Thermostat open (ame return from the brazier);
Er07 - Encoder Error. The error may occur due to lack signal from Encoder;
Er08 - Encoder Error. The error can occur due to problems of adjustment of the number of revolutions;
Er09 - Water pressure low;
Er10 - Water pressure high;
Er11 - Clock Error. The error occurs due to problems with the internal clock;
Er12 - Extinguishing for ignition failure;
Er15 - Extinguishing due to power failure for more than 50 minutes;
Er16 - RS485 communication error (Display);
Er17 - Adjusting the Air Flow Failed;
Er18 - No more Pellet in the bunker;
Er23 - Boiler probe or Back boiler probe or probe Buer open;
Er25 - Engine cleaning brazier broken;
Er26 - Engine cleaning broken;
Er27 - Engine cleaning 2 broken;
Er39 - Sensor Flowmeter broken;
Er41 - Minimum air ow in Check Up is not reached;
Er42 - Maximum air ow exceeded;
Er44 - Open door error;
Er47 - Error Encoder Auger: missing signal Encoder;
Er48 - Error Encoder Auger: Auger regulation speed not achieved;
Er52 - Error Module I/O I2C;
Er57 - Test ’Forced Draught High’ in Check Up fail;
Service - Service error. It noties that the planned hours of functioning is reached. It is necessary to call for service.
ALARMS
CONTROL PANEL: USE AND FUNCTIONS

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Description
Code
PRob
Hi
Clean
Port
Ignition
block
Cleaning on
Link Error
Anomaly of the probes checking, during Check Up phase.
Room temperature greater than 99 °C.
This message noties that the planned hours of functioning (parameter T67) are reached.
Door Open.
The message appears if the system is turned o during Ignition (after Preload) not manually:
the system will stop only when it goes in Run Mode.
Periodical Cleaning in progress.
No communication between motherboard and keyboard
MESSAGES
Exhaust T. [°C] - Exhaust temperature;
Room T. [°C] - Room Temperature ; it is displayed only if an input has been set as a Room Probe;
Boiler T. [°C] - Boiler Temperature;
Buffer T. [°C] - Buer Temperature, it is visible only if P26 is set on 2,3,4;
Pressure [mbar] - Water pressure;
Air Flux - Air ow; it is visible only if A24 is dierent from 5;
Fan Speed [rpm] - Exhaust fan speed; it is visible only if P25 is dierent from 0;
Auger [s] - Auger work time; it is visible only if P81 is equal to 0;
Recipe [nr] - Combustion recipe set; it is visible only if P04 is greater than 1;
Product Code: 510 - Product code;
VISUALIZATIONS
USER MENU 1
Combustion Management
Power - In this menu is possible to modify the combustion power of the system. It can be set in automatic or
manual modality . In the rst case the system chooses the combustion power. In the second case the user selects
the desired power. On the left side of the display are signalled the combustion modality (A=automatic combustion,
M=manual combustion) and the working power of the system.
Recipe - Menu to select the combustion recipe. The maximum value is the number of recipes visible to the user.
Heating Management
Boiler thermostat - Menu to change the value of the boiler thermostat . The minimum and the maximum value can
be programmed by setting the thermostats respectively Th26 and Th27.
Buffer thermostat - Menu to change the value of the Buer Thermostat ( Th58 ); it is visible only if P26 = 2 , 3 , 4.
The minimum and the maximum value can be programmed by setting thermostats respectively Th51 and Th52.
Room Thermostat - This Menu allows to modify the Local Room Thermostat’s value. It is visible only if the ambient
probe is select.
Summer-Winter - Menu that allows the selection Summer-Winter.
Manual Load
The procedure activates the pellet manual loading with activation in continue modality of the Auger engine. The
loading is stopped automatically after 600 seconds. The system must be OFF for the function can be activated.
Cleaning Reset
Menu to reset the ‘System Maintenance 2’function. It is visible only if T67>0.

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CHRONO
This Manu allows selecting the programming modalities and and the Ignition/Extinguishing time slots.
Disable
Daily
Weekly
Week-End
Modality - It allows selecting the disired modality, or disable all set programming.
1. Enter modication mode through the key P3.
2. Select the chosen modality (Daily, Weekly or Week end).
3. Enable/disable chrono modality through the keys P2.
4. Save the settings through the keys P3.
Programming
The system includes three type of programming: Daily, Weekly, Week end.
After selecting the desired kind of programming:
1. Select the programming time through the keys P4/P6.
2. Enterthe adjustment modality (selected time will be ashing) through the keys P3.
3. Change the time via keys P4/P6.
4. Save the programmong with the keys P3.
5. Enable (a “V” is displayed) or disable the time slot (a “V” is not displayed”) by
pressing the keys P5.
Daily
Select the day of the week to program and set the ignition and extinguishing times.
Programs around midnight
Set the clock On of the previous day at the desired time: Ex. 20.30
Set the clock of OFF of the previous day at: 23:59
Set the clock On of the following day at 00:00
Set the clock of OFF of the following day at the desired time: Ex. 6:30
The system turns on at 20.30 on Tuesday and turns o at 6.30 on Wednesday
Weekly
The programs are the same for all days of the week.
Week-end
Choose between 'Monday-Friday' and 'Saturday-Sunday' and then set the switching
on and o times.
Monday
ON OFF
09:30 11:15 V
00:00 00:00
00:00 00:00
Monday____________
Tuesday
Wednesday
Thrusday
Friday
Mon-Fri
Sat-Sun
USER MENU 2
Menu is accessed by pressing the P3 buttons for 3 seconds .
Settings
Time and Date - Used to set the day, month, year and current time.
Language - Menu to modify the language of the LCD board.
Display Menu
Contrast - Menu used to regulate the display contrast.
Brightness - It allows you to adjust the screen brightness.
Minimum Brightness - Menu used to regulate the lighting of the display when the command aren’t used.
Keyboard Address - This Menu is protected by a password (the password is 1810), that allows you to set the RS485
node address. With the bus 485 it is not possible to have more nodes with the same address.
Sound - It allows you to enable or disable sound from the control panel.
Node List - This menu shows: communication address of the board, typology of the board, rmware code and
rmware version. Data are not modiable. The typologies of board that can appear are:
MSTR - Master; INP - Input; KEYB - Keyboard; OUT - Output;
CMPS - Composite; SENS - Sensor; COM - Communication;
Acoustic Alarm - It allows to enable or disable the acoustic alarm of the keyboard.
Auger Calibration - It allows to modify the value set in rm of Auger’s speed or On times. The values are in the
range – 7 ÷ 7. The rm’s value is 0.
Fan Calibration - It allows to modify the value set in rm of Combustion Fan’s speed. The values are in the range
– 7 ÷ 7. The rm’s value is 0.
Summer-Winter - This Menu allows you to modify the hydraulic plant functioning depending on the season.

18
Mareli Systems
S
ESC
SET
P1
P2
P3
P4
P5
P6
P0 50 65 C
RUN MODE
CONTROL PANEL K500
Main ermostat
Main Temperature
Chrono
Winter / Summer
State
Power
P1 - Exit from menu/submenu rell Function (push for 3 seconds)
P2 - Ignition, extinguishing and errors reset (push for 3 seconds) Enable/Disable Chrono
P3 - Access to User Menu 1/ submenu / Access to user 2 menu (push for 3 seconds) / Save Data
P4 - Access to combustion power / Menu Increase
P5 - Enable chrono time slot /Access to the Info Menu
P6 - Access to Room ermostat / Boiler ermostat / Menu Decrease
G- Daily Chrono on / S- Weekly chrono on / FS - Week End Chrono On
DHW demand or buer tank thermostat not reached
Local room heating target reached
P3 + P5 - Direct access to the Secondary Information menu inside the Service menu. (push for 3 seconds)
USER MENU 1
Power - Pellet Menu to modify the combustion power of the system in Pellet mode. It is possible to set it
in auto or manual mode: in the rst case the system chooses the power combustion, while in the second
one, the user selects the power. On the le of the display the combustion mode is reported (A= automatic
combustion, M=manual combustion) and the system working power.
ermostats
Boiler - Menu to modify the Boiler ermostat value. You can program the minimum and maximum value
by setting the ermostats 26 and 27. With climatic function switched on the thermostat value cannot
be modied, because it is automatically computed by the system.
Buer Tank - Menu that allows to modify the Buer tank ermostat value; it is shown if; it is displayed if a
hydraulic plant requiring it has been selected.
DHW - Menu to edit the DHW thermostat value.
CHRONO
This Manu allows selecting the programming modalities and and the Ignition/Extinguishing time slots.
Disable
Daily
Weekly
Week - End
Modality - It allows selecting the disired modality, or disable all set programming.
1. Enter modication mode through the key P3.
2. Select the chosen modality (Daily, Weekly or Week end).
3. Enable/disable chrono modality through the keys P2.
4. Save the settings through the keys P3.
Programming
The system includes three type of programming: Daily, Weekly, Week end.
After selecting the desired kind of programming:
1. Select the programming time through the keys P4/P6.
2. Enterthe adjustment modality (selected time will be ashing) through the keys P3.
3. Change the time via keys P4/P6.
4. Save the programmong with the keys P3.
5. Enable (a “V” is displayed) or disable the time slot (a“V” is not displayed”) by
pressing the keys P5.
Daily
Select the day of the week to program and set the ignition and extinguishing times.
Programs around midnight
Set the clock On of the previous day at the desired time: Ex. 20.30
Set the clock of OFF of the previous day at: 23:59
Set the clock On of the following day at 00:00
Set the clock of OFF of the following day at the desired time: Ex. 6:30
The system turns on at 20.30 on Tuesday and turns o at 6.30 on Wednesday
Weekly
The programs are the same for all days of the week.
Week-end
Choose between 'Monday-Friday' and 'Saturday-Sunday' and then set the switching
on and o times.
Monday
ON OFF
09:30 11:15 V
00:00 00:00
00:00 00:00
Monday____________
Tuesday
Wednesday
Thrusday
Friday
Mon-Fri
Sat-Sun
USER MENU 2
Menu is accessed by pressing the P3 buttons for 3 seconds .
Settings
Time and Date - Used to set the day, month, year and current time.
Language - Menu to modify the language of the LCD board.
Display Menu
Contrast - Menu used to regulate the display contrast.
Brightness - It allows you to adjust the screen brightness.
Minimum Brightness - Menu used to regulate the lighting of the display when the command aren’t used.
Keyboard Address - This Menu is protected by a password (the password is 1810), that allows you to set the RS485
node address. With the bus 485 it is not possible to have more nodes with the same address.
Sound - It allows you to enable or disable sound from the control panel.
Node List - This menu shows: communication address of the board, typology of the board, rmware code and
rmware version. Data are not modiable. The typologies of board that can appear are:
MSTR - Master; INP - Input; KEYB - Keyboard; OUT - Output;
CMPS - Composite; SENS - Sensor; COM - Communication;
Acoustic Alarm - It allows to enable or disable the acoustic alarm of the keyboard.
Auger Calibration - It allows to modify the value set in rm of Auger’s speed or On times. The values are in the
range – 7 ÷ 7. The rm’s value is 0.
Fan Calibration - It allows to modify the value set in rm of Combustion Fan’s speed. The values are in the range
– 7 ÷ 7. The rm’s value is 0.
Summer-Winter - This Menu allows you to modify the hydraulic plant functioning depending on the season.

19
Mareli Systems
CHRONO
This Manu allows selecting the programming modalities and and the Ignition/Extinguishing time slots.
Disable
Daily
Weekly
Week - End
Modality - It allows selecting the disired modality, or disable all set programming.
1. Enter modication mode through the key P3.
2. Select the chosen modality (Daily, Weekly or Week end).
3. Enable/disable chrono modality through the keys P2.
4. Save the settings through the keys P3.
Programming
The system includes three type of programming: Daily, Weekly, Week end.
After selecting the desired kind of programming:
1. Select the programming time through the keys P4/P6.
2. Enterthe adjustment modality (selected time will be ashing) through the keys P3.
3. Change the time via keys P4/P6.
4. Save the programmong with the keys P3.
5. Enable (a “V” is displayed) or disable the time slot (a“V” is not displayed”) by
pressing the keys P5.
Daily
Select the day of the week to program and set the ignition and extinguishing times.
Programs around midnight
Set the clock On of the previous day at the desired time: Ex. 20.30
Set the clock of OFF of the previous day at: 23:59
Set the clock On of the following day at 00:00
Set the clock of OFF of the following day at the desired time: Ex. 6:30
The system turns on at 20.30 on Tuesday and turns o at 6.30 on Wednesday
Weekly
The programs are the same for all days of the week.
Week-end
Choose between 'Monday-Friday' and 'Saturday-Sunday' and then set the switching
on and o times.
Monday
ON OFF
09:30 11:15 V
00:00 00:00
00:00 00:00
Monday____________
Tuesday
Wednesday
Thrusday
Friday
Mon-Fri
Sat-Sun
USER MENU 2
Menu is accessed by pressing the P3 buttons for 3 seconds .
Settings
Time and Date - Used to set the day, month, year and current time.
Language - Menu to modify the language of the LCD board.
Display Menu
Contrast - Menu used to regulate the display contrast.
Brightness - It allows you to adjust the screen brightness.
Minimum Brightness - Menu used to regulate the lighting of the display when the command aren’t used.
Keyboard Address - This Menu is protected by a password (the password is 1810), that allows you to set the RS485
node address. With the bus 485 it is not possible to have more nodes with the same address.
Sound - It allows you to enable or disable sound from the control panel.
Node List - This menu shows: communication address of the board, typology of the board, rmware code and
rmware version. Data are not modiable. The typologies of board that can appear are:
MSTR - Master; INP - Input; KEYB - Keyboard; OUT - Output;
CMPS - Composite; SENS - Sensor; COM - Communication;
Acoustic Alarm - It allows to enable or disable the acoustic alarm of the keyboard.
Auger Calibration - It allows to modify the value set in rm of Auger’s speed or On times. The values are in the
range – 7 ÷ 7. The rm’s value is 0.
Fan Calibration - It allows to modify the value set in rm of Combustion Fan’s speed. The values are in the range
– 7 ÷ 7. The rm’s value is 0.
Summer-Winter - This Menu allows you to modify the hydraulic plant functioning depending on the season.
USER MENU 2
Settings
Time and Date - It allows you to set day, month, year and current time.
Language - It allows you to modify the language of the keyboard.
Recipe - Menu for the selection of the combustion recipe.
Summer/Winter - Menu to edit the functioning of the hydraulic system according to the season.
Service
Counters - Ignitions (Number of attempted Ignitions) - Failed Ignition (Number of failed ignitions) -
Working hours (Operating hours in Run mode, Modulation and Safety).
Errors List - e menu shows the last 10 errors; in each line the error code and time/date of the error itself
are shown.
Secondary Information - Information about congurable outputs and inputs are only available if they have
been set.
Cleaning Reset - Menu to reset the function ‘System Maintenance 2’. It is displayed only if T67>0.
Auger Calibration - is menu allows you to modify the default values of the Auger speed or its On times.
You can set the values in a range within –7÷7. e default value is 0.
Fan Calibration - is menu allows you to modify the default values of the Combustion Fan speed. You can
set the values in a range within –7÷7. e default value is 0.
Mixer Valve - Menu to manage the Mixer Valve operation.
Automatic Power - is menu allows you to set combustion power in automatic mode only. If you set it,
power change menus are no longer displayed.
Loading - e procedure enables the pellet manual charge and it is automatically interrupted aer 300
seconds. In order to enable this function, the system must be on mode O.
Loading Test - e procedure allows calculating the amount of pellet used in 10 minutes with the auger.
Display
Contrast - It allows you to adjust the screen contrast.
Screen saver - is Menu allows the user to enable and disable the screen saver.
Acoustic Alarm - Menu to enable/disable the acoustic alarm.
Minimum Brightness - It allows you to adjust the screen brightness when not using the controls.

20
Mareli Systems
1
2N
L
LINEA
3
4
5
6
FF
NN
FF
NN
V1V2
7
8
FF
NN
A1
9
10
FF
NN
C
13
12
11
H1H2
F
N
A2
14
15
21 20
+ _
IN1
23 22
GND
S2
IN2
25 24
GND S3
IN3
27 26
GND S4
IN4
29 28
30 +V
GND S5
IN5
32 31
+V
+VC
34 33
GND S6
IN6
36 35
GND S4
IN7
CN1
RS232 RS485
POWER
CABLE
COMBUSTION
FAN
IGNITER
SAFETY AUGER
PUMP
SAFETY THERMOSTAT
WATER
PROTECTION
RETURN FLAME
PRESSURE SWITCH
EXHAUST
PROBE
ROOM
THERMOSTAT
BUFFER PROBE
BOILER
PROBE
FAN
ENCODER
COM
N.C N.O PUMP 2
DISPLAY
PROGRAMMER
N
NN.ON.C
CONNECTION PUMP 2 / 3 WAY VALVE
RED
BROWN
BLACK
AIR FLOW SENSOR
WATER PRESSURE
SENSOR
PUMP 2 ACTIVATION : P44 = 15 P75 = 9