This symbol indicates “CAUTION” and is placed next to all safety warnings. Strictly follow these instructions in order to avoid
danger and damage to persons, animals and things
This symbols calls attention to a note or important notice.
This symbol, which is used on the product, packaging or documents, means that at the end of its useful life, this product must
not be collected, recycled or disposed of together with domestic waste.
Improper management of electric or electronic waste can lead to the leakage of hazardous substances contained in the product. For the purpose of preventing damage to health or the environment, users are kindly asked to separate this equipment
from other types of waste and to ask for it to be dealt with by the municipal waste service or dealer under the conditions and
according to the methods set down in national and international laws transposing the Directive 2012/19/EU.
Separate waste collection and recycling of unused equipment helps to save natural resources and to guarantee that this waste
is processed in a manner that is safe for health and the environment.
For more information about how to collect electric and electronic equipment and appliances, please contact your local Council
or Public Authority competent to issue the relevant permits.
E
ECO P N
B
•Read the warnings in this instruction booklet carefully since they provide important information on safe installation, use and
maintenance.
•This instruction booklet is an integral part of
the product and must be kept with care by
the user for future reference.
•If the unit is sold or transferred to another
owner or if it is to be moved, always make
sure the booklet accompanies the boiler so
that it can be consulted by the new owner
and/or installer.
•Installation and maintenance must be carried out by professionally qualified personnel, according to the current regulations
and the manufacturer's instructions.
•Incorrect installation or inadequate maintenance can result in damage or injury. The
manufacturer declines any responsibility
for damage caused by errors in installation
and use or by failure to follow the manufacturer's instructions.
•Before carrying out any cleaning or maintenance operation, disconnect the unit from
the electrical power supply using the switch
and/or the special cut-off devices.
•In case of a fault and/or poor operation, deactivate the unit and do not try to repair it or
directly intervene. Contact professionally
qualified personnel. Any repair/replacement of products must only be carried out
by qualified personnel using original re-
placement parts. Failure to comply with the
above could affect the safety of the unit.
•Periodical maintenance carried out by
qualified personnel is essential to ensure
proper operation of the unit.
•This unit must only be used for the purpose
for which it was designed. Any other use is
considered improper and therefore hazardous.
•After removing the packing, check the integrity of the contents. The packing materials are potentially hazardous and must not
be left within the reach of children.
•The unit must not be used by people (including children) with limited physical, sensory or mental abilities or without
experience and knowledge of it, unless instructed or supervised in its use by someone responsible for their safety.
•In case of doubt do not use the unit. Contact the supplier.
•The unit and its accessories must be disposed of appropriately, in conformity with
the current regulations.
•The images given in this manual are a simplified representation of the product. In this
representation there may be slight and insignificant differences with respect to the
product supplied.
The CE marking certifies that the products meet the essential requirements of the relevant directives in force.
The declaration of conformity may be requested from the manufacturer.
COUNTRIES OF DESTINATION: IT - ES - RO - BG - HR - GR - HU - RS
1.2 Control panel ........................................................................................................................................ 29
1.3 Lighting and shutdown .........................................................................................................................30
2.1 General Instructions ............................................................................................................................. 38
2.2 Installation in boiler...............................................................................................................................38
Dear Customer,
Thank you for choosing ECO P N, a LAMBORGHINI burner featuring advanced design, cutting-edge technology, high
reliability and quality construction.
ECO P N is a pellet burner whose compact size and original design make it suitable for use with the majority of solid
fuel-burning boilers available on the market today. The care taken in its design and industrial production has resulted
in a well-balanced product offering high efficiencies, low CO and NOx emissions and a very quiet flame.
The burner is arranged for connection to an external domestic hot water storage tank (optional). In this manual, all the
functions regarding domestic hot water production are active only with the optional hot water tank connected as indicated in cap. 2.5 "Connection to an external tank for domestic hot water production".
8Reset – Enter – On/Off button
9Parameter selection button
10
11Menu Access – Information button
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Pellet Loading Function – Parameter selection button
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Indication during operation
Heating
A heating demand (generated by Request Contact, Room Thermostat or Remote Timer Control) is indicated by activation of the radiator (detail 1 - fig. 1).
The multifunction display (detail 4 - fig. 1) shows the heating sensor temperature and, during heating standby time, the
message “d2”.
fig. 2
Domestic hot water (DHW)
A DHW demand (generated by drawing hot water) is indicated by activation of the faucet (detail 6 - fig. 1).
The multifunction display (detail 4 - fig. 1) shows the DHW sensor temperature and, during DHW standby time, the mes-
sage “d1“.
1.3 Lighting and shutdown
Burner not electrically powered
fig. 4 - Burner not electrically powered
The frost protection system does not work when the power and/or gas to the unit are turned off. To avoid dam-
B
age caused by freezing during long shutdowns in winter, it is advisable to drain all water from the boiler, the
DHW circuit and the heating system water; or drain just the DHW circuit and add a suitable antifreeze to the
heating system, as prescribed in sec. 1.3.
fig. 3
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A
B
Burner ignition
Switch on the power to the burner.
•For the next 180 seconds the display will show 0/FH which identifies the heating system air venting cycle.
•During the first 10 seconds the display also shows the software version of the cards (A = Display card software version
/ B = Controller software version).
•When the message FH disappears, the burner is ready to work automatically whenever there is a room thermostat demand.
Burner shutdown
Press the on/off button (detail 8 - fig.1) for 5 seconds.
When the device is turned off, the PCB is still powered. Domestic hot water and heating are disabled. The frost protection system remains activated. To switch the device on again, press the on/off button (detail 8 - fig.1) for 5 seconds.
The device will be immediately ready to work whenever domestic hot water is drawn or in case of a heating demand
(generated by the Room Thermostat or Remote Timer control).
1.4 Adjustments
User menu
To access the user settings menu, press the Info button (detail 11 - fig. 1).
7 parameters and information indicated by the letter “u”are available.
u05Burner max. power1=Min, 5=Max3
u06Burner operation methodology0=request contact, 1, 20=request contact
u07Burner power (Step) and Flame status0-6-
1 = Winter
0 = Economy
By pressing the Info button it is possible to scroll the list of user settings, only in ascending order, until exiting the menu.
Heating temperature adjustment
Press the Info button (detail 11 - fig. 1) until displaying the parameter u01 of the user settings menu.
Press Enter (detail 8 - fig. 1): the actual value of the parameter u01 is displayed.
Use the buttons (details 9 and 10 - fig. 1) to adjust the temperature from a min. of 30°C to a max. of 85°C.
Press Enter (detail 8 - fig. 1) to confirm the setting.
Then press the Info button (detail 11 - fig. 1) until exiting the menu.
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DHW temperature adjustment
Press the Info button (detail 11 - fig. 1) until displaying the parameter u02 of the user settings menu.
Press Enter (detail 8 - fig. 1): the actual value of the parameter u02 is displayed.
Use the buttons (details 9 and 10 - fig. 1) to adjust the temperature from a min. of 10°C to a max. of 65°C.
Press Enter (detail 8 - fig. 1) to confirm the setting.
Then press the Info button (detail 11 - fig. 1) until exiting the menu.
Summer/Winter Switchover
Press the Info button (detail 11 - fig. 1) until displaying the parameter u03 of the user settings menu.
Press Enter (detail 8 - fig. 1): the actual value of the parameter u03 is displayed.
Use the buttons (details 9 and 10 - fig. 1) to set Summer mode (0) or Winter mode (1).
Press Enter (detail 8 - fig. 1) to confirm the setting.
Then press the Info button (detail 11 - fig. 1) until exiting the menu.
ECO/COMFORT selection
Heating/hot water tank temperature maintaining (Comfort) can be excluded by the user.
If excluded (Economy), domestic hot water will not be delivered.
Press the Info button (detail 11 - fig. 1) until displaying the parameter u04 of the user settings menu.
Press Enter (detail 8 - fig. 1): the actual value of the parameter u04 is displayed.
Use the buttons (details 9 and 10 - fig. 1) to set Economy (0) or Comfort (1) mode.
Press Enter (detail 8 - fig. 1) to confirm the setting.
Then press the Info button (detail 11 - fig. 1) to exit the menu.
Burner Max. Power
Press the Info button (detail 11 - fig. 1) until displaying the parameter u05 of the user settings menu.
Press Enter (detail 8 - fig. 1): the actual max power step is displayed.
Use the buttons (details 9 and 10 - fig. 1) to vary the max power: from 1 (min Step) to 5 (max Step).
Table. 2 Burner max. power
Parameter valueECO 3,4 P N
Power - kW
11430
22036
32541
43048
53455
Press Enter (detail 8 - fig. 1) to confirm the setting.
Then press the Info button (detail 11 - fig. 1) to exit the menu
ECO 5,5 P N
Power - kW
Burner operation methodology
Press the Info button (detail 11 - fig. 1) until displaying the parameter u06 of the user settings menu.
Press Enter (detail 8 - fig. 1): the actual value of the parameter u06 is displayed.
Use the buttons (details 9 and 10 - fig. 1) to vary the operation methodology:
•u06=0 (default): Burner activation with request contact (230Vac) or with Room Thermostat contact (voltage-free). (Re-
mote Control request by-passed).
•u06=1: Burner activation from Remote Control or with request contact (230Vac).
•u06=2: Burner activation from Remote Control and with request contact (230Vac).
Press Enter (detail 8 - fig. 1) to confirm the setting.
Then press the Info button (detail 11 - fig. 1) to exit the menu.
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Actual burner power (Step) and Flame status
Press the Info button (detail 11 - fig. 1) until displaying the information u07 of the user settings menu.
Press Enter (detail 8 - fig. 1): the actual burner power (Step) and Flame status are displayed.
•1 = Minimum Power
•5 = Maximum power
•0/FH = During Pre-ventilation/Post-ventilation
•6 = During Post-ventilation2
Press Enter (detail 8 - fig. 1) to return to the list of parameters.
Then press the Info button (detail 11 - fig. 1) to exit the menu.
Room temperature adjustment (with optional room thermostat)
Using the room thermostat, set the temperature required in the rooms. If the room thermostat is not installed, the boiler
will keep the system at the set system delivery setpoint temperature.
Room temperature adjustment (with optional remote timer control)
Using the remote timer control, set the required temperature in the rooms. The burner will adjust the system water according to the required room temperature. For operation with remote timer control, refer to the relevant instruction manual.
Adjustments from Remote Timer Control
A
If the Remote Timer Control (optional) is connected to the burner, the parameter “u06” must be modified (see
*** 'Burner operation methodology' on page 32 ***); the previously described adjustments are managed as described in table 3.
Table. 3
Heating temperature adjustmentAdjustment can be made from the Remote Timer Control menu and the burner control panel.
DHW temperature adjustmentAdjustment can be made from the Remote Timer Control menu and the burner control panel.
Summer/Winter SwitchoverSummer mode has priority over a possible Remote Timer Control heating demand.
Eco/Comfort selectionSelection can only be made from the burner control panel
Burner shutdown (off)Off mode can only be done from Remote Timer Control.
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Parameters menu
The card Service Menu is accessed by pressing the Info button (detail 11 - fig. 1) for 10 seconds. Press the Up/Down
buttons to select “tS”, “In”, “Hi” or “rE”. “tS” means Transparent Parameters Menu, “In” means Information Menu, “Hi”
means History Menu, “rE” means History Menu Reset. After selecting the menu, press the Info button to access it.
“ts” - Transparent parameters menu
Table. 4
Remote
Control
01t01Pellet loading function0=Disabled
02t02Delivery probe0=Disabled
03t03Fan setpoint in Lighting0-200 Pa51 Pa51 Pa
04t04Auger activation time in Lighting0-100
05t05Adjustment calculation timer (only with t18=1 and
06t06Ramp function timer0-255 seconds150 seconds150 seconds
07t07Auger operation period (activation time + deactiva-
08t08Fan setpoint at Power 10-200 Pa51 Pa51 Pa
09t09Auger activation time at Power 10-100
10t10Fan setpoint at Power 20-200 Pa74 Pa70 Pa
11t11Auger activation time at Power 20-100
12t12Fan setpoint at Power 30-200 Pa120 Pa100 Pa
13t13Auger activation time at Power 30-100
14t14Fan setpoint at Power 40-200 Pa150 Pa120 Pa
15t15Auger activation time at Power 40-100
16t16Fan setpoint at Power 50-200 Pa170 Pa155 Pa
17t17Auger activation time at Power 50-100
18t18Burner operation selection (only with t02=1)0=On/Off
19t19Post-ventilation 2 Time0-255
20t20Photoresistance voltage (display only)0-50 (50=5Vdc)---21t21Auger activation function in Lighting0=Continuous
22t22Photoresistance voltage threshold0-100 (100=1Vdc)5050
23t23Burner type selection1=P7/ECO 3.4 P
24P24System water pressure protection selection0=No Pressure switch,
25P25Boiler type selection1=Heating only
26P26Heating pump activation temperature (P25=1)0-80°C30°C30°C
2=Storage with probe
3=Storage with probe
4=Instantaneous
Heating pump activation temperature (P25=2)0-80°C30°C30°C
Heating pump activation temperature (P25=3)0-80°C30°C30°C
Heating pump activation temperature (P25=4)0-80°C30°C30°C
0-20 minutes6 minutes6 minutes
Heating pump
0=Disabled0=Disabled
1=Enabled1=Enabled
8 (32 seconds)8 (32 seconds)
28 (2.8 seconds)38 (3.8 seconds)
38 (3.8 seconds)40 (4.0 seconds)
46 (4.6 seconds)45 (4.5 seconds)
53 (5.3 seconds)60 (6.0 seconds)
56 (5.6 seconds)65 (6.5 seconds)
0=On/Off0=On/Off
200 (20 seconds)200 (20 seconds)
0=Continuous0=Continuous
1=P7/ECO 3.4 P2=P12
0=No Pressure
switch
11
ECO 5,5 P N
0=No Pressure
switch
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Remote
Control
29P29Pump operation0=Post-Circulation
30P30Pump deactivation temperature during Post-Circula-
31P31Heating user max. set point31-90°C80°C80°C
32P32No function (P25=1)------
40P40Safety and heating sensor selection0-200
41P41Variable output relay operation (P25=1)0-400
42P42No function (P25=1)------
CardTransparent ParametersRangeDefault/
ECO 3,4 P N
1=Continuous
tion (P25=1)
Pump deactivation temperature during Post-Circula-
tion (P25=2)
Pump deactivation temperature during Post-Circula-
tion (P25=3)
Pump deactivation temperature during Post-Circula-
tion (P25=4)
DHW pump activation temperature (P25=2)0-80°C40°C40°C
DHW pump activation temperature (P25=3)0-80°C40°C40°C
DHW pump activation temperature (P25=4)0-80°C40°C40°C
DHW user max. setpoint (P25=2)55-65°C65°C65°C
DHW user max. setpoint (P25=3)55-65°C65°C65°C
DHW user max. setpoint (P25=4)------
Hot water tank activation hysteresis temperature
(P25=2)
Hot water tank activation hysteresis temperature
(P25=3)
No function (P25=4)------
Hot water tank preparation delivery temperature
(P25=2)
Hot water tank preparation delivery temperature
(P25=3)
DHW mode delivery adjustment temperature (P25=4) 50-75°C55°C55°C
Boiler shell warm-up activation temperature (P25=2) 0-80°C0°C0°C
Boiler shell warm-up activation temperature (P25=3) 0-80°C0°C0°C
Comfort activation temperature (P25=4)0-80°C55°C55°C
Legionella protection (P25=2)0-700
Legionella protection (P25=3)0-700
No function (P25=4)------
0-100°C35°C35°C
0-100°C35°C35°C
0-100°C35°C35°C
0-100°C35°C35°C
0-20°C4°C4°C
0-20°C4°C4°C
70-85°C80°C80°C
70-85°C80°C80°C
0=Post-Circulation 0=Post-Circulation
ECO 5,5 P N
Press the Up/Down buttons to scroll the list of parameters in ascending or descending order. To change the value of a
parameter just press Enter at the parameter and then modify it with the Up/Down buttons: the change will be saved
automatically.
To return to the list of parameters just press Enter.
To return to the Service Menu just press the Info button. To exit the card Service Menu press the Info button for 10
seconds or exiting will be automatic after 15 minutes
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“In” - Information Menu
The card can display the following information:
Contents
t01NTC Heating sensor (°C)between 05 and 125°C
t02NTC Safety sensor (°C)between 05 and 125°C
t03Hot water tank NTC sensor (°C) (only with parameter P25=2, storage boiler)between 05 and 125°C
P04Actual system water pressure (bar/10)00-99 bar/10
P05Burner power (Step) and Flame status0-6
P06Actual air pressure (Pa)00-255 Pa
P07Actual air pressure setpoint (Pa)00-255 Pa (00 with burner off)
P08Actual air pressure Switch Off setpoint (Pa)00-255 Pa (00 with burner off)
C09Auger (On/Off)On/Off
F10Photoresistance voltage0-50
DescriptionRange
Flow switch status (On/Off) (only with parameter P25=4, instantaneous boiler)On/Off
Press the Up/Down buttons to scroll the list of information in ascending or descending order. To display the value just
press Enter at the parameter. In case of damaged sensor, the card displays hyphens.
To return to the list of parameters just press Enter.
To return to the Service Menu just press the Info button. To exit the card Service Menu press the Info button for 10
seconds or exiting will be automatic after 15 minutes.
"Hi" - History Menu
The microprocessor can memorize the total hours with card powered (Ht), the last 10 faults and the hours of burner
operation (Hb).
The History datum item H1 represents the most recent fault that occurred, whereas the History datum item H10 represents the least recent. The codes of the faults saved are also displayed in the corresponding menu of the Opentherm
remote control.
Press the Up/Down buttons to scroll the list of faults. To display the value just press Enter at the parameter.
To return to the list of faults just press Enter.
To return to the Service Menu just press the Info button. To exit the card Service Menu press the Info button for 10
seconds or exiting will be automatic after 15 minutes.
"rE" - History Reset
By pressing Enter for 3 seconds it will be possible to delete all the faults stored in the History Menu: the card will automatically exit the Service Menu, in order to confirm the operation.
To exit the card Service Menu press the Info button for 10 seconds or exiting will be automatic after 15 minutes.
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1.5 Operating instructions
Once the burner is installed and correctly adjusted, its operation is fully automatic without requiring any control by the
user. In case of anomalies or no fuel, the burner stops and shuts down. To avoid irregular burner operation it is advisable
to top-up the fuel before it finishes.
Make sure the room where the burner is installed is free of flammable materials or objects, corrosive gases and volatile
substances, and that it is not dusty. In fact, dust drawn by the fan sticks to the blades and reduces the air flow or obstructs the flame stability disk thereby affecting its efficiency.
Do not allow unskilled persons or children to tamper with the burner.
B
1.6 Cleaning the burner grille
Before cleaning or any maintenance work, disconnect the power supply to the burner.
To avoid malfunctions and burner shutdowns, it is necessary to clean the combustion head grille.
Cleaning must be carried out at least once a week and in any case whenever the grille is obstructed by combustion
residues.
To clean, wait for the burner to cool down completely.
Lift the grille, remove the nozzle and suck the ash. If necessary, free the slots by removing combustion residues using
a metal brush.
Suck the ash present inside and outside the nozzle.
Refit the grille, making sure the pin is correctly positioned in the locking hole.
fig. 5- Cleaning the grille
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20/21
2. Installation
2.1 General Instructions
This unit must only be used for its intended purpose.
This unit can be used with heat generators for solid fuels, compatibly with its characteristics, performance and heating
capacity. Any other use is deemed improper and therefore hazardous. Opening or tampering with the unit's components
is not allowed (except for the parts requiring servicing); do not modify the unit to alter its performance or intended use.
If the burner is completed with optionals, kits or accessories, only use original products.
BURNER INSTALLATION AND SETTING MUST ONLY BE CARRIED OUT BY QUALIFIED AND SPECIAL-
B
2.2 Installation in boiler
Place of installation
The room where the boiler and burner are installed must have openings to the outside as required by the current regulations. If there are several burners or exhausters that can work together in the same room, the ventilation openings
must be sized for simultaneous operation of all the units.
The place of installation must be free of flammable materials or objects, corrosive gases, dusts or volatile substances
which, drawn by the fan, can obstruct the pipes inside the burner or the combustion head. The room must be dry and
not exposed to rain, snow or frost.
Fix the burner to the door. Make the electrical connections as shown in cap. 4.4 "Wiring diagram" (wiring diagram). If
the burner is installed in a boiler ECO-LOGIK, use the special conversion kit. Insert the temperature probe (contained
in the kit) in the sheathing on the cast-iron boiler shell and make the respective electrical connections.
B
ISED PERSONNEL, IN COMPLIANCE WITH ALL THE INSTRUCTIONS GIVEN IN THIS TECHNICAL MANUAL, THE CURRENT PROVISIONS OF LAW, THE PRESCRIPTIONS OF NATIONAL AND LOCAL
STANDARDS, AND THE RULES OF PROPER WORKMANSHIP.
THE BURNER IS DESIGNED TO WORK ON HEAT GENERATORS WITH COMBUSTION CHAMBER IN
NEGATIVE PRESSURE.
THE PELLET HOPPER MUST BE POSITIONED SO THAT THE AUGER/BURNER FLEXIBLE CONNEC-
TION TUBE IS NOT TWISTED AND/OR BENT.
Overtemperature safety device
The heat generator must be equipped with its own protection device against overtemperature. If the device provided for
is a safety thermostat, it must be connected to terminals 20 and 21 of the terminal block located inside the burner (after
removing the jumper). For LAMBORGHINI boilers not equipped with safety coil, the kit 033001X0 must be used.
fig. 6 - Safety thermostat connection
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L
N
A
6
7
8
9
10
11
12
13
14
15
16
17
4
5
230V 50Hz
L
N
B
L
N
C
218
32
130
E
D
95
3.15 A
N
L
18
19
20
21
22
23
24
25
26
27
49
114
72 139
42
34
Instructions for installing the ECO P N pellet burner in the boiler ECO-LOGIK
Optional kits are available for use of the pellet burner with boilers ECO-LOGIK. For installation, refer to the instructions
contained in the kits.
After installing the kit in the boiler, fit the burner.
Secure the nozzle “L” with screws “M” and the burner with nut “N”. Connect the cable “E” to terminals 20 and 21, and
the cable “T” to sensor “V” and to terminals 4 and 5. Secure the casing "P” to the burner body with screws “R” and part
“S” on flange “K” of the burner.
Connect the cable "T" so that it is not in direct contact with the flange "K" (fig. 7).
B
E
M
V
S
M
fig. 7
N
R
P
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min. 600
Y
W
X
OK
Insert the motor-operated feed pipe “Y” in the pellet hopper “X” and carry out the auger-burner connection in such a way
that the flexible tube “W” (fig. 8) is not twisted and/or bent and is not touching hot parts that can damage it. Respect
the distance given in the fig. 8.
Adjust the burner as described in the relevant instruction manual and, in particular, set the parameter u05 on the burner
controller as indicated in the table.
Burner modelECO 3,4 P NECO 5,5 P N
Boiler model ECO-LOGIKECO-LOGIK 3ECO-LOGIK 4ECO-LOGIK 5ECO-LOGIK 6ECO-LOGIK
The burner is equipped with a multi-pole terminal block for the electrical connections; refer to the wiring diagram in section “4 Technical data and characteristics" for the connections. The connections to be made by the installer are all
those indicated by the dashed lines in the wiring diagram (see fig. 18).
The length of the connection cables must allow the burner and, if necessary, the boiler door to be opened. If the burner
power cable is damaged, it must only be replaced by qualified personnel.
The burner must be connected to a single-phase 230 Volt-50 Hz electric line.
Have the efficiency and suitability of the earthing system checked by professionally qualified personnel; the
B
2.4 Fuel supply
General Instructions
The burner must be fed with the type of fuel for which it is arranged, as specified on the unit's dataplate and in the technical data table on sec. 4.3 of this manual.
The user is advised to use good quality pellets, since low quality pellets result in low heat outputs, high ash content with
subsequent need of frequent cleaning, possible early wear of burner parts exposed to the fire, clogging of the auger and
burner due to excess loose sawdust, and operation shutdowns due to sedimentation of unburnt materials inside the
burner.
To identify quality pellets it is advisable to proceed as follows:
•They must be cylinders of constant diameter and have a smooth and bright surface.
•Check that the labels give the details of the quality certifications
•Check that the packs are intact so that the pellets do not absorb humidity.
Manufacturer declines any liability for damage caused by failure to earth the system. Also make sure the electrical system is adequate for the maximum power absorbed by the unit, as specified on the boiler data plate.
Make sure to respect the polarities (LINE: brown wire / NEUTRAL: blue wire / GROUND: yellow-green wire)
in the connections to the electric line.
Pellet loading
Pellet loading can be activated within 40 minutes after switching on the power to the burner.
Within this time, the system makes available three 5-minute attempts, during which only the auger is activated.
The burner cannot be lit during pellet loading.
Sequence:
1.Switch on the power to the burner.
2.Wait for the pre-ventilation stage to end.
3.Remove burner ignition request.
4.Press and hold down the button (detail 10 - fig. 1) for 3 seconds.
- “R” (detail 5 - fig. 1) flashes, identifying the imminent start of the PELLET loading procedure.
- After two seconds, the auger will be electrically powered and continuously for a maximum time of 5 minutes.
- The PELLET loading procedure can be terminated at any time by pressing and holding down the button (detail
10 - fig. 1) for 3 seconds.
5.If the maximum pellet loading time (5 minutes) is reached, the power to the auger is switched off.
6.Press and hold down the button (detail 10 - fig. 1) for 3 seconds.
- The message "R" will disappear and the display returns to normal operation.
7.If the first attempt was not sufficient, repeat the previous sequence from point 4 to start the second attempt
8.If the second attempt was not sufficient, repeat the previous sequence from point 4 to start the third and last attempt
9.In order to do another 3 attempts, switch the power to the unit off and then on again
10.After the loading of pellets, reinstate the burner ignition request.
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8
9
10
11
32
130
42
2.5 Connection to an external tank for domestic hot water production
Connection with circulating pump
The unit's electronic board is arranged for managing an external storage tank for domestic hot water production. Carry
out the plumbing connections according to the diagram fig. 10 (pumps and non-return valves must be supplied separately). Carry out the electrical connections as shown in the wiring diagram (see fig. 18). A LAMBORGHINI probe must
be used. At the next lighting, the boiler control system detects the hot water tank probe and automatically configures
the DHW function, activating the display and relevant controls.
fig. 10 - Diagram of connection with circulating pump
Legend
8Domestic hot water outlet
9Cold water inlet
10System delivery
11System return
32Heating circulating pump
42DHW temperature sensor
130 Hot water tank circulating pump
42EN
cod. 3541S060 - Rev. 00 - 05/2019
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8
9
10
11
95
42
32
Connection with diverter valve
The unit's electronic board is arranged for managing an external storage tank for domestic hot water production. Carry
out the plumbing connections according to the diagram fig. 11 (the 3-way valve must be supplied separately). Carry out
the electrical connections as shown in the wiring diagram (see fig. 18). A LAMBORGHINI probe must be used.
Change parameter P25 of the "Transparent Parameters Menu" to 3.
At the next lighting, the boiler control system detects the hot water tank probe and automatically configures the DHW
function, activating the display and relevant controls.
fig. 11 - Diagram of connection with diverter valve
Legend
8Domestic hot water outlet
9Cold water inlet
10System delivery
11System return
953-way valve - 2 wires with spring return (not supplied)
•Powered (230 Vac) = Heating position
•Not powered = DHW position
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1
3. Service and maintenance
All adjustment, commissioning and maintenance operations must be carried out by Qualified Personnel in compliance with
the current regulations. The personnel of our sales organization and the Local After-Sales Technical Service are at your
disposal for any further information.
LAMBORGHINI declines any liability for damage and/or injury caused by unqualified and unauthorised persons tampering
with the unit.
3.1 Commissioning
Checks to be made at first lighting, and after all maintenance operations involving disconnection of the systems or any
operation on safety devices or parts of the burner:
Before lighting the burner
•Make sure the burner is correctly fixed in the boiler with the preliminary settings indicated above.
•Make sure the boiler and system are filled with water or diathermic oil, the plumbing circuit valves are open and that
the flue is free and correctly sized.
•Check closing of the boiler door, so that the flame is only generated inside the combustion chamber.
•Check the correct positioning of the auger and the burner connection flexible tube.
•Fill the hopper with pellets.
•Check the correct positioning and connection of the temperature probe.
A
Make sure the grille (detail 1 - fig. 12) is clean.
fig. 12 - Burner grille
Burner lighting
•Switch on the power, operating the main switch ahead of the burner.
•To fill the auger with pellets, see sec. 2.4.
•close the thermostat line (boiler/room).
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Burner setting
1.Connect a combustion analyser to the boiler outlet and leave the burner working at max. for 30 minutes; in the meantime check the fume extraction duct.
2.MAKE SURE THE COMBUSTION CHAMBER IS IN NEGATIVE PRESSURE
3.Check the combustion at max. burner power (adjusted according to boiler rated output).
4.Combustion parameters:
between 5% and 9%
•O
2
•CO between 150 and 1000 ppm
NOTE
The CO value is affected by the quality of the pellets, the amount of dirt in the combustion head, and boiler draft.
If necessary, for burner calibration, vary the fan set point by modifying the relevant parameter (see par. “Parametersmenu” on page 34 and Table 2, “Burner max. power,” on page 32).
5.After checking combustion at maximum power, also check the other burner steps, repeating the procedure described
above and reducing the value of the parameter u05 to 1 (see par. “Parameters menu” on page 34 and Table 2,“Burner max. power,” on page 32).
6.To operate the burner in Modulating mode, it is necessary to modify the parameter t18 (see par. Parameters Menu)
7.Restore the burner maximum power parameter u05 to the desired value (adjusted according to boiler nominal power)
3.2 Maintenance
Checks and controls
A
A
The burner requires periodical maintenance which must be performed by qualified personnel at least once a year.
The basic operations to carry out are:
•check and cleaning of the internal parts of the burner and boiler as indicated in the following sections;
•complete combustion analysis (after at least 10 minutes' operation) and check of correct settings;
Opening the casing and removing the burner
B
To open
Undo the screws (A) and remove the casing (B). The internal components, motor, damper, etc., are directly accessible.
Periodically check the cleanness of the burner parts which will tend to get dirty depending on the quality of the
pellets or due to incorrect burner adjustment.
Periodically check the pellet hopper and remove dust from the bottom. An excessive amount of dust can affect
the proper supply of fuel to the burner.
Before carrying out any checking or cleaning inside the burner, disconnect the power to the burner by means of
the main system switch.
A
B
fig. 13 - Casing opening
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C
D
E
To disassemble the burner
After removing the casing, unscrew the nut (C) and disconnect the body, undo the fixing screws (D) and remove the
nozzle (E).
fig. 14 - Burner disassembly
Checks on parts and components
Fan
Make sure no dust has accumulated inside the fan and on the blades: it reduces the air flow, thus causing pollutant
combustion.
Combustion head
Make sure all parts of the combustion head are intact, not warped by the high temperature, free of impurities coming
from the room, and correctly positioned.
Photoresistance
Remove any dust on the glass. The photoresistance is press-on; to remove, pull it outwards.
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3.3 Troubleshooting
The burner is equipped with an advanced self-diagnosis system. In case of a burner fault, the display (detail 4 - fig. 1)
flashes indicating the fault code.
There are faults the cause permanent shutdowns (marked with the letter "A"): to reinstate operation, press the “Reset”button (detail 8 - fig. 1) for 1 second; if the burner fails to restart, it is necessary to firstly eliminate the fault.
Other faults cause temporary shutdowns (marked with the letter "F") which are automatically reset as soon as the value
returns within the burner's normal operating range.
Table. 5 - List of faults
FaultFaultCauseCure
Pellet container emptyFill the container with pellets
Auger cable broken or disconnectedRestore the connection
A01No ignition shutdown
F02Parasite flame elimination
A02Shutdown for parasite flame
A03Wiring faultJumper of terminals 20-21 not connectedCheck the wiring
Faulty igniter resistanceReplace and empty the head of pellets
Combustion head dirtyEmpty and clean it
Pellet feed duct obstructed
The demand for heat has ended, but the
burner detects flame
Incorrect ignition parametersCheck ignition parameters
Photoresistance short circuitReplace the photoresistance
Extraneous light strikes the photoresistanceEliminate the light source
Incorrect ignition parametersCheck ignition parameters
Boiler under pressure
Faulty safety thermostatReplace it
Auger cable broken or disconnectedRestore the connection
Pressure sensor connection tube squashedReplace
Fan motor damagedReplace
Fan dirtyClean it
Wiring disconnectedCheck the wiring or replace the sensor
Sensor damaged
Wiring disconnected
Sensor damaged
Wiring disconnected
Free it, make sure the combustion head is
not clogged and empty it if necessary
Wait for end of post-ventilation
Clean it and check correct minimum flue
draft (10Pa)
Check the wiring or replace the sensorWiring shorted
Check the wiring or replace the sensorWiring shorted
Check the card parameter and modify it if
necessary
Check the card parameter and modify it if
necessary
Check the card parameter and modify it if
necessary
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250
312
217
447
165282
Ø min180
Ø
60
Ø max194
250
337
490
325165
217
Ø min 210
Ø
60
Ø max 234
4. TECHNICAL DATA AND CHARACTERISTICS
4.1 Dimensions
fig. 15 - Dimensional ECO 3,4 P N
48EN
fig. 16 - Dimensional ECO 5,5 P N
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7
1
2
3
4
5
9
6
13
11
9
12
8
6
10
4.2 General view and main components
fig. 17
Legend
1Pressure transducer
2Controller
3Burner body
4Terminal block
5User interface
6Heating element
7Photoresistance
DataUnitECO 3,4 P NECO 5,5 P N
Identification codes0U2F6DXD0U2F8DXD
Max. heating capacitykW34.155.0(Q)
Min. heating capacitykW13.730.0(Q)
Max. fuel deliverykg/h7.211.6
Min. fuel deliverykg/h2.96.3
Electrical protection ratingIPX0DX0D
Power voltage/frequencyV/Hz230/50230/50
Electrical power inputW100100
Electrical power in lightingW430430
Empty weightkg1113.5
Hopper capacityliters195323
Hopper contentkg140226
Pellet dimensions (max. diameter/length)mm6/356/35
Combustion chamber negative pressurembar-0.2-0.2
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4.4 Wiring diagram
L
N
A
6
7
8
9
10
11
12
13
14
15
16
17
OUT
+15V
GND
4
5
230V 50Hz
18
19
20
21
22
23
24
25
26
27
X1
297
L
N
X8
X2
X5
FR
49
114
72
B
L
N
C
139
42
218
DSP13
ABM09
34
2
3
4
5
6
7
8
3.15 A
4
3
2
1
1
2
3
4
5
6
1
239
16
X3
11
10
9
8
7
6
5
4
3
2
1
32
130
E
D
95
N
L
DO NOT CONNECT "LINE" OR "NEUTRAL" SIGNALS COMING FROM THE ELECTRICAL SYSTEM TO
B
THE TERMINAL BLOCK.
ALL CONNECTIONS MUST BE MADE AS SHOWN IN THE WIRING DIAGRAM.
EXTERNAL ELECTRICAL LOADS TO BE WIRED TO THE TERMINAL BLOCK MUST NOT EXCEED 100W
FOR EACH SINGLE OUTPUT. FOR THE CONNECTION OF LOADS AND CONTACT "C" (230V), USE A
DOUBLE INSULATION CABLE.
N.B. Remove the jumper on contacts 9-10 before connecting the remote timer control or room thermostat.
Key - Wiring diagram fig. 18
Aelectrical power supply
BMotor auger
CRequest contact
DShutdown signal
EBurner reset
FRPhotoresistance
16Fan
32Heating circulating pump (not supplied)
fig. 18 - Wiring diagram
34Heating temperature sensor
42DHW temperature sensor (optional)
49Boiler safety thermostat