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DOMUSA TEKNIK LIGNUM NG 20, Installation And Operating Instructions Manual

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DOMUSA TEKNIK LIGNUM NG 20 Installation And Operating Instructions Manual Download Page 12

Lignum NG

 

 

10 

 

 

IMPORTANT:  Before carrying out any work on the boiler's electrical installation, always ensure 

it is disconnected from the mains. 

IMPORTANT: Make 

sure 

that none of the mains cables come into contact with a hot surface 

(e.g. flue). 

3.8

 

Example of an installation with a buffer tank 

The Lignum NG boiler is equipped with an electronic control that can govern a circuit with buffer 

tank, with an external circulation kit to prevent condensation in the heat exchanger. The heating 

circuit must be regulated and controlled with an external regulator (not included in the boiler 

control). 

The figure below shows an example of a hydraulic diagram of a buffer tank heating installation: 

 

 

 VS

:

  Heating safety valve 

 VR

:

  Anti-condensation thermostatic valve 

 VA:

 Drain valve 

 BC

:

 Heating pump 

 BT:

  Buffer tank

 VDT:

  Temperature relief 

valve 

 VC:

  Heating expansion vessel 

 BCD:

  Direct circuit pump 

 BCM:

  Mixed circuit pump 

      P:

  Automatic air bleed valve 

IMPORTANT: It is obligatory and essential to install a heating water buffer tank. 

Summary of Contents for LIGNUM NG 20

Page 1: ...INSTALLATION AND OPERATING INSTRUCTIONS LIGNUM NG ...

Page 2: ... of the product and it must be given to the user We recommend you read the warnings and recommendations in the manual carefully as they contain important information on the safety use and maintenance of the installation These boilers must be installed by qualified personnel only in accordance with the legislation in force and following the manufacturer s instructions Incorrect installation of thes...

Page 3: ...ING THE COMBUSTION AIR 12 5 TEMPERATURE RELIEF SAFETY VALVE 13 5 1 OPERATING PRINCIPLE 13 5 2 VALVE ASSEMBLY 13 6 STARTING UP THE BOILER 14 6 1 PRIOR WARNINGS 14 6 2 FILLING THE INSTALLATION 14 6 3 START UP 14 6 4 INSTALLATION HAND OVER 15 7 DIGITAL DISPLAY AND SELECTING PARAMETERS 16 8 BOILER MAINTENANCE AND CLEANING 18 8 1 CLEANING THE BOILER 18 8 1 1 ASHES 18 8 1 2 TAR 18 8 2 BOILER MAINTENANCE...

Page 4: ... Top cover 3 Safety heat exchanger 4 Pipe cleaning mechanism 5 Fume pipes 6 Top refractory element 7 Bottom refractory element 8 Control panel 9 Heat exchanger 10 Wood housing 11 Peep hole 12 Base 13 Top door 14 Bottom door 15 Extractor fan 16 Fume chamber ...

Page 5: ...ed to reduce the values of the selected Menu settings 3 START button and increase value Activates the fan and the combustion adjustment Also used to increase the values of the selected Menu settings 4 Main switch Turn on the controller 5 Fuse carrier It protects the controller and the elements dependent on the controller It is recommended that a porcelain slow blow 5x20mm 3 15A nominal current fus...

Page 6: ...y it is not recommended to install boilers of up to 50 kW in stairways living areas corridors or garages Similarly installing boilers in locations with ventilation fans extractor fans air extraction systems etc should be avoided e g tumble dryer extraction It must be kept a minimum distance of 0 4 m from flammable building materials so as to not reach surfaces temperatures above 85 C 3 2 Hydraulic...

Page 7: ...midity The greater the humidity of the wood the slower the combustion and the lower the flame temperature This abruptly increases the amount of soot and tar in the fumes To reach dry levels in the air 20 the following drying times are recommended Oak 2 5 years Beech ash fruit trees 2 years Linden alder birch 1 5 years Pine poplar spruce 1 year If the wood is not cut round wood a minimum of 2 extra...

Page 8: ...er to avoid this it may be necessary to cut the total length in half Place the rounded part of the logs facing down to avoid any wedging effect If using briquettes they must have a diameter of 6 to 10 cm Their use is only recommended in combination with firewood Pay special attention to the energy density of the firewood as a full load of pine wood is equivalent to 2 3 of a load of beech wood and ...

Page 9: ...per amount of charcoal approximately 10 zm 3 4 1 Ignition tunnel The ignition tunnel allows the combustion air to flow during ignition Therefore do not place any combustion material on top of the opening of the grill during the ignition leaving the ignition tunnel free of obstacles 3 4 2 Paper cardboard and kindling The fire should be lit with paper cardboard and or kindling The cardboard should b...

Page 10: ...ing compartment on top of at least three layers of firewood approximately half of the combustion chamber 3 5 Unsuitable fuel Wood with 20 humidity Waste plastics Paper and cardboard only for ignition Sawdust wood shavings Small kindling Coal Material generally forbidden by legislation regarding atmospheric contamination and air quality such as treated wood beams etc 3 6 Combustion product removal ...

Page 11: ...tions which could affect correct boiler combustion This draught stabiliser must be installed below the fume inspection plate to prevent any leakage of combustion gases 3 7 Electrical Connection The Lignum NG boiler must be connected to 230 V ac 50 Hz by the connector labelled 220V AC on the back of the boiler The socket should have an appropriate earth connection The circulating pump must be conne...

Page 12: ...ternal circulation kit to prevent condensation in the heat exchanger The heating circuit must be regulated and controlled with an external regulator not included in the boiler control The figure below shows an example of a hydraulic diagram of a buffer tank heating installation VS Heating safety valve VR Anti condensation thermostatic valve VA Drain valve BC Heating pump BT Buffer tank VDT Tempera...

Page 13: ...e hot water tank to the boiler optionally supplied by DOMUSA TEKNIK and a 3 way diverter valve see Electrical Diagram The figure below shows an example of a hydraulic diagram for a heating installation with radiators and a DHW tank VS Heating safety valve VR Anti condensation thermostatic valve VA Drain valve BC Heating pump BT Buffer tank V3V 3 way valve VC Heating expansion vessel BCD Direct cir...

Page 14: ...ation is provided by the partial combustion of the firewood The air necessary for the gasification is called primary air The gas produced in the housing is mixed with the preheated secondary air and generates an extremely high temperature combustion in the refractory chamber reducing emissions and increasing the boiler efficiency The induced draught fan supplies the primary and secondary air to th...

Page 15: ...ds with Standard EN 303 5 5 2 Valve assembly The temperature relief valve must be connected with free discharge to the safety heat exchanger in accordance with Standard EN 12828 The connection must not be blocked manually Furthermore access must be granted to the heat protection mechanism and to the cleaning inspection once assembled The minimum connection pressure for the safety heat exchanger is...

Page 16: ...filled slowly bleeding the air from the water circuit using the drain valves provided for this purpose Close the fill valve after filling IMPORTANT Switching on the boiler with no water inside could result in serious damage 6 3 Start up Before beginning the start up process the following must be complied with The boiler must be connected to the mains The installation must be filled with water the ...

Page 17: ...neer will explain to the user how the boiler works making any observations they consider relevant The installer is responsible for clearly explaining to the user the functioning of any control or regulation device forming part of the installation but not supplied with the boiler ...

Page 18: ...HW tank after selecting the boiler temperature and pressing the F button the DHW set point temperature must be selected T2 only valid for installation with DHW tank Default value 55ºC After pressing the F button again select the fume set point temperature T3 only valid for Adjustment Mode 03 Recommended value 180ºC Ventilation time during periods with no heat demand Default value recommended 10 s ...

Page 19: ...ic Adjustment 01 PID adjustment based on the boiler temperature adjustment 02 PID adjustment based on the fume temperature adjustment 03 Recommended parameter 02 PID adjustment based on boiler temperature Service menu symbol To select the parameters press F Use the and buttons to increase or reduce the value of the selected parameter the value will be flashing Check that the value shown on the boi...

Page 20: ...aping the rake on the middle refractory part in order to avoid abrasion of the part Close the top loading door and open the bottom front door Remove the ashes that have built up inside the combustion chamber and surrounding areas Clean the flue by moving the lever towards the boiler approximately 10 times Perform full 90º cycles NOTE The flue cleaning lever can be placed on the opposite side of th...

Page 21: ...s reference plate yearly 8 Check the air tightness of the housing doors yearly 9 Check the water pressure in the heating installation In cool mode it should be between 1 1 5 bars yearly 8 2 1 Draining the condensation water Draining of condensation water from the flue should not be altered in any way and it must be kept free of obstructions 8 2 2 Boiler water characteristics In areas with water ha...

Page 22: ...g using water or another extinguishing agent DOMUSA TEKNIK shall not be liable for any damage caused to people animals or property as a result of incorrect handling of the ash drawer or the ash itself IMPORTANT The ash clearance must only be undertaken when the boiler is switched off 8 3 2 Hazards related to the door of the fuel loading chamber To avoid hazards related to the door of the fuel load...

Page 23: ...ssage AL1 appears on the screen After detecting the lack of fuel the circulating pump and the fan are deactivated so as to avoid any heat loss in the buffer tank In this case if no additional load of wood is desired the controller can be turned off The AL1 alarm can be cancelled by pressing the START button or after turning the controller on and off NOTE If the lack of fuel is detected too quickly...

Page 24: ...s 5 Class 5 Maximum operating pressure bar 3 Fume temperature ºC 150 200 Control temperature range ºC 65 80 Minimum return temperature ºC 55 Safety thermostat temperature ºC 97 Boiler water volume litres 90 104 114 Water pressure drop T 10ºC mbar 39 22 44 Water pressure drop T 20ºC mbar 11 6 11 Minimum flue draught mbar 0 01 Pa 10 Electrical supply 230 V 50 Hz Average electrical consumption in nom...

Page 25: ... 30 Lignum NG 40 Boiler height A mm 1060 1210 1310 Total height B mm 1165 1315 1415 Feeder connection height C mm 1137 1287 1387 Fumes outlet connection D mm 125 130 146 150 Chimney connection height E mm 715 865 955 Height of the Safety Heat Exchanger F mm 975 1125 1225 ...

Page 26: ...Fan M clockwise seen from the rotor side Central Heating Pump DHW Tank Pump yellow green yellow green yellow green yellow green brown blue blue blue blue blue blue blue red red brown brown brown yellow green yellow green blue black brown C NO NC DS yellow green blue brown Capacitor 2 7 μF L Phase N Neutral C Common GND Earth T1 Boiler sensor T2 DHW sensor T3 Fume temperature sensor Room thermostat...

Page 27: ...nected from their corresponding terminal block DHW BOILER SENSOR PTC 1 kΩ at 25ºC R ohms Temp ºC R ohms Temp ºC 815 0 1209 50 886 10 1299 60 961 20 1392 70 1000 25 1490 80 1040 30 1591 90 1122 40 FUMES SENSOR PT1000 1 kΩ at 0ºC R ohms Temp ºC R ohms Temp ºC 1000 0 1385 100 1097 25 1479 125 1194 50 1573 150 If there are significant differences with regard to the values in the table the sensor must ...

Page 28: ...o Code Description 1 Top door 2 Bottom door 3 LIGNUM NG coil 4 Gas flue cleaning system 5 Fan 6 Controller 7 Bottom back part 8 Outside 9 Refractory parts 10 CLIG000163 Air adjustment LIGNUM NG 20 30 CLIG000111 Air adjustment LIGNUM NG 40 ...

Page 29: ...door handle assembly 1 4 CLIG000005 LIGNUM NG Bakelite arm 1 5 CLIG000006 LIGNUM NG door fixing 1 6 CLIG000113 LIGNUM NG handle shaft 1 7 CLIG000119 LIGNUM NG Door lock 1 8 CLIG000120 LIGNUM NG door lock pin 1 9 CLIG000121 LIGNUM NG upper front door with refractory LIGNUM NG 20 CLIG000122 LIGNUM NG upper front door with refractory LIGNUM NG 30 CLIG000123 LIGNUM NG upper front door with refractory ...

Page 30: ...127 LIGNUM NG 30 40 bottom door seal 2 5 CLIG000011 LIGNUM NG peep hole 2 6 CLIG000012 LIGNUM NG peep hole casing 2 7 CLIG000013 LIGNUM NG rake 2 8 CLIG000128 LIGNUM NG ash box 2 9 CLIG000129 LIGNUM NG 20 bottom front door with refractory CLIG000130 LIGNUM NG 30 40 bottom front door with refractory ...

Page 31: ...scription 3 1 CLIG000016 LIGNUM NG cooling heat exchanger 3 2 CLIG000017 LIGNUM NG Temperature relief valve 3 6 CLIG000019 LIGNUM NG Temperature relief valve casing 3 8 CLIG000131 LIGNUM NG Temperature relief valve seal ...

Page 32: ...026 LIGNUM NG turbulator axle 4 3 CLIG000135 LIGNUM NG cleaning axle 4 4 CLIG000030 LIGNUM NG cleaning arm 4 5 CLIG000031 LIGNUM NG cleaning handle No Code Description 4 8 CLIG000032 LIGNUM NG cleaning axle arm 4 9 CLIG000034 LIGNUM NG cleaning axle support 4 11 CLIG000136 LIGNUM NG flue lid 4 14 CLIG000137 LIGNUM NG flue lid insulation 4 15 CLIG000042 LIGNUM NG cleaning brush ...

Page 33: ...31 Fan No Code Description 5 1 RLIG000113 LIGNUM NG fan 5 4 RLIG000114 LIGNUM NG fan cover box CLIG000046 LIGNUM NG fan gasket ...

Page 34: ...ermostat 6 3 CLIG000050 LIGNUM NG fumes sensor 6 4 CLIG000051 LIGNUM NG boiler sensor 6 5 CLIG000052 LIGNUM NG DHW sensor 6 6 CLIG000053 LIGNUM NG controller light 6 7 CLIG000138 LIGNUM NG controller housing 6 11 CFOV000151 LIGNUM NG capacitor 6 12 LIGNUM NG capacitor terminal 6 13 CLIG000114 LIGNUM NG door switch ...

Page 35: ...33 Bottom back part No Code Description 7 1 CLIG000139 LIGNUM NG back part 7 2 CLIG000140 LIGNUM NG back door insulation ...

Page 36: ...Lignum NG 34 Outside ...

Page 37: ... right side CLIG000148 LIGNUM NG right side 8 5 CLIG000149 LIGNUM NG top door CLIG000150 LIGNUM NG top door CLIG000151 LIGNUM NG top door 8 6 CLIG000152 LIGNUM NG 20 bottom door CLIG000153 LIGNUM NG 30 40 bottom door 8 7 CLIG000154 LIGNUM NG 20 bottom back CLIG000155 LIGNUM NG 30 bottom back CLIG000156 LIGNUM NG 40 bottom back 8 9 CLIG000157 LIGNUM NG coil cover 8 13 CLIG000090 3 pin socket connec...

Page 38: ... element 9 3 CLIG000159 LIGNUM NG top fibre seal 9 4 CLIG000160 LIGNUM NG middle refractory element 9 5 CLIG000161 LIGNUM NG bottom fibre seal 9 6 CLIG000108 LIGNUM NG 20 bottom refractory element CLIG000109 LIGNUM NG 30 40 bottom refractory element 9 8 RLIG000124 LIGNUM NG primary air duct ...

Page 39: ...s sheet LIGNUM NG 40 11 2 RLIG000119 Front left anti condensates sheet LIGNUM NG 20 RLIG000122 Front left anti condensates sheet LIGNUM NG 30 RLIG000116 Front left anti condensates sheet LIGNUM NG 40 11 3 RLIG000120 Front right anti condensates sheet LIGNUM NG 20 RLIG000123 Front right anti condensates sheet LIGNUM NG 30 RLIG000117 Front right anti condensates sheet LIGNUM NG 40 ...

Page 40: ...s turned off and on The Technical Support Service must be called to check and replace the sensor AL3 Boiler overheating alarm This alarm occurs when the boiler temperature exceeds 90ºC If this happens the fan switches off and the pumps are activated In addition an acoustic signal is emitted When the boiler temperature drops the regulator which controls the boiler will operate normally AL4 Fume tem...

Page 41: ...not included in the terms of this guarantee 3 The commissioning and annual service are to be carried out by personnel authorised by DOMUSA TEKNIK 4 The commercial guarantee will be null and void in the following cases If the annual service has not been carried out by personnel authorised by DOMUSA TEKNIK If the boiler has not been installed in accordance with the applicable laws and regulations fo...

Page 42: ...Lignum NG 40 NOTES ...

Page 43: ...41 NOTES ...

Page 44: ... Bº San Esteban s n 20730 AZPEITIA 20737 ERREZIL Gipuzkoa Tel 34 943 813 899 www domusateknik com DOMUSA TEKNIK reserves the right to make modifications of any kind to its product characteristics without prior notice CDOC001642 CDOC001642 10 19 ...

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