Pellet burner PV 20a
Contents
1. pelltech Pellet burner PV 20a User manual PV 20a Table of content Table O content TE NY FF NF HT FANER RY NF a an Da ARFAETH NN HNN FFF 2 Description ie ee era ae GU DF wydda FLOEDD E O DIOD 4 FUE ls Eu HYN RHYN NYFFRYN HF RF RAN FY AR RNA NEF EEF INF YN NR YR ER 7 Tue Uy FD NR FFY FN EEF FEN EN RH ee en 7 Boller require Mets iii 8 BUN GR HN BEER EEE RF HF EE FERFFAN FF WN CH FFF WRTH NERYS AORTA FFYNON 10 Pellet container u eier na leeren 11 External auge anne nennen HY AFR FNAN 12 a nee an anne 12 Operation er u es Aa 15 Starting Ba Een ia FYR FF FT REF CU 15 AN 16 SettingS A anne een 16 Info Meninas 17 A A Eo 17 Retilline fuel acts 19 Maint Manes iii AAA ee een 19 Working principle ccccccccnnnnnnnnnononononnncnnnnnnnnnnnnnnnnnnnnnnnnnnnnn a nerea a a ekin PEES S er Ea EEan iai EEEa ika 21 TESNE A Hei a 21 LIN ii ee E A ND 21 EA E 21 Pre UU Lm ticos 21 B rninpa anne nie ia 22 Y lul gion a Ee YO HRN HR NENN REF a 22 F ellevel detection r nr ei Fen du da pt 22 Output powerilevelsi eie ue degau DOD y DOR a nenne kn 22 Hold Tame HF FN HF FATER Be RF ARON RR ek 22 ENA TN daria aa 23 NA 23 Controller Board descriptiol uu Y sahen Hk Rn 24 E ee ER ne nie DYD odan 26 W arrantyiara nase nee ee 27 2 www pelltech eu PV 20a Safety precautions Do not start the burner before it is connected to the boiler and the boiler is connected to the chimney It is recommended2. Burner will enter level detection fault condition in following cases 1 Fuel loading timeout no signal for specified period of time 2 Fuel unloading timeout signal lasts longer than specified period of time Output power levels Burner has 6 preset output power levels For every level program calculates correct fuel amount depending of fuel calorific value and burner internal feeder productivity The feeder productivity for normal light and heavy pellets can be changed from setup menu par21 par22 par23 For most pellets it is 78g per rotation Calculated amount of fuel is divided into periodic feeding cycles In every cycle internal feeder makes half rotation If the calculated cycle comes to short less than 11s then the cycle length is doubled and fuel is fed with by full rotation of feeder For every power level there is different preset fan rotation speed air table Burner chooses the output level between preset min and max powers When burning time has been more then 30 min next time burner takes one level up when burning time has been less then 15 min next time burner takes one level down Hold flame The main idea of this state is to reduce the number of igniting cycles This state can be turned on automatically or manually in hold flame menu ON OFF AUTO If set to AUTO burner goes to hold flame when the time between two startups is less then 10 minutes for 2 times When hold flame lasts more then one
3. Thermostat Mains transformer 10 External auger 10 Mains transformer 3 A 5 Mains transformer 6 Flame sensor 7 8 9 BUT User interface buttons CONTR LCD contrast and viewing angle adjustment FAN Internal air fan speed feedback sensor FDR Feed screw motor speed feedback sensor TRS Fuel level sensor transmitter black marking RSV Fuel level sensor receiver white marking TEMP1 Feed screw tube temperature sensor TEMP2 Ambient temperature sensor TEMP3 UART RS232 interface for external modem 5V TTL Fuses Fuse Rating Function F 0 5A quick External auger F 1A quick Fan F z F4 3A quick Igniter F 2A quick Controller and feeder motor 1 2 3 0 5A quick Flue gas fan 5 223 pelltech 24 www pelltech eu PV 20a Problems and solutions Error states Cause Action Stopped his is actually not an error condition o turn burner on Burner is turned OFF from menu hold down OK button at least 3s OR change row BURNER from OFF to ON in setup menu No pellets Maximum loading time is reached 5 or 20 F check fuel in storage minutes and not enough fuel from external check auger and auger connection to auger for ignition is loaded burner Fuel level is not detected in 4 minutes at check the level sensors clean them No flame check the level sensors clean them Flame is disappeared at burning time Flame is not disappeared in end blow state check photocell clean it O Burner in
4. 20 35 HOLD FLAME AIR Fan speed during hold flame cycle rps 10 7 14 11 HOLD FLAME ON In case of Hold flame is set on AUTO flame holding activated after 2 waiting session both less then 15 min 12 HOLD FLAME OFF In case of Hold flame is set on AUTO there is maximum time for flame holding cycle 16 AUTO POWER min 30 15 45 23 PELLET HEAVY Internal feeder production g rot 35 28 38 25 LOADING 2 FEED Feeder turns during second loading rot 3 1 8 cycle 30 SMOKEFAN ON 0 OFF 1 ON 0 1 0 0 1 31 SMOKEFAN 1 Smokegas fan speed for ignition end 40 0 100 blow burn at power level 1 and 2 32 SMOKEFAN 2 Smokegas fan speed for burn at power 60 100 level 3 and 4 33 SMOKEFAN 3 Smokegas fan speed for burn atpower 80 100 level 5 and 6 40 PHOTOCELL Photocell sensitivity 84 50 100 43 OVERHEAT TEMP Maximum allowed burner IE 50 20 70 temperature 50 ON ERROR RELAY Error output relay contacts ON NO ON OFF or OFF NC 99 MODEL VERSION Load default settings for chosen 20a 20a 30a 50a burner model or change model type 100a 02020 ss pelltech e 17 www pelltech eu PV 20a Refilling fuel The fuel storage must be refilled before it runs empty Fuel can be added at any time during the operation To add fuel simply pour a new bag of pellets into your fuel storage If the storage runs empty before new fuel is added the external auger must be loaded again as described in chapter Starting Failing to do so will result No Pellets due to fu
5. TR Transformer Tt Boiler thermostat Flue gas fan M2 is installed only if there is not enough draught The flue gas fan is not included with burner s pelltech 13 www pelltech eu PV 20a Operation The burner is controlled via user interface on the front panel LCD screen 1 displays settings menu event log etc Yellow light 2 shows the presence of flame in burning chamber Or if blinking the burner is out of normal operation Status can be seen on log screen Green light 3 indicates if there is fuel in the burner To move in menus use up and down buttons 4 to change parameter press OK to go back to LOG press ESC button 1 2 Figure 10 Front panel Starting Prior to the initial start up of the burner make sure that e The burner is connected to the boiler e The boiler thermostat is installed and is functioning properly e The boiler thermostat is turned to lowest temperature e The external auger is installed and connected to the burner e The smoke duct is connected to the chimney the dampers for smoke gases are open and there is sufficient draught When the burner is operating the negative pressure inside the boiler must stay between 4 6 Pa To turn on the burner switch on boiler main switch If burner displays Stopped then go to settings menu and change parameter Burner from OFF to ON The display shows Waiting Now turn boiler thermostat to desired te
6. and universal boilers The PV 20a burner is connected to the boiler with a 90 mm flange similar to oil burners The burner is eguipped with a safety thermostat a melting chute temperature sensor and auxiliary battery for protection against back burning 2 nelitech o o 4 www pelltech eu Burner main components are shown on Figure 1 1 Burning chamber 2 Feed screw 3 Safety cut off thermostat 4 Mains transformer 5 User interface joystick 6 User interface screen 7 Auxiliary battery 8 Connectors Figure 1 Burner main components PV 20a 10 11 12 13 14 15 Feed screw motor Fan Fuel level sensor Mounting nut Flame detector Igniter Grate www pelltech eu PV 20a Figure 2 Dimensions Table 1 Specification PV 20a L total length 530 L1 burner body length 230 L2 burning chamber length 170 D burning chamber diameter 146 D1 burning chamber neck diameter 88 9 D2 internal feeder inlet diameter 60 H total height 250 H1 burner housing height 200 W total width 220 W burner housing width mm 204 Mass kg 11 2 Supply voltage VAC 220 240 Power max 570 Power average W 25 40 Power at standby W Noise dB Emission class Operating temperature Cc Nominal heat input kW Min heat input kW 1 According to EN 15270 ess Celltech esese Pp 6 www pelltech eu PV 20a Fuel PV 20a uses premium wooden pellets as fuel Wood pellets are concentrated and homoge
7. hour automatic mode is turned off and burner goes to burn end state In hold flame state new fuel is fed after every 127s and fan is working by speed given by par10 pelltech 21 www pelltech eu PV 20a End burn Inthe end burn state all fuel inside the burning chamber and feeder tube must be burned no more fuel added from external auger Internal feeder and fan keep on working as in previous states hold flame or burning After the feeder has made periodically 15 half rotations par26 the feeder starts working continiously until 32 half rotations is made End blow Only the fan keeps on working with speed shown in par9 to burn out all coals Feeder is turned off This state lasts until no flame is recognized plus one minute Table 7 Air table for PV 20a Power kW Fan rps Cycle s Feeder rot 16 30 18 34 0 38 13 cycle length and feeder rotations are different if feeder production changed in parameters setup 23 pelltech 22 www pelltech eu PV 20a Controller board description ID o I o Lu E Ly a SBB ver3 1 2010 8 C26 y4 a R47 c IP C2 EN 1516 o Figure 11 Controller board 23 www pelltech eu pelltech PV 20a Table 8 X1 and X2 connectors Battery positive terminal Flue gas fan Battery negative terminal Mains transformer Flame sensor 6 7 Fan Feed screw black 8 L Feed screw red 9
8. installation of the burner always make sure that the end of the igniter is positioned through its opening and not stuck behind the dividing wall Pellet container The burner the auger and the pellet container are a common system The size and the location of the pellet container depend on the needs and possibilities of the specific boiler room While choosing the pellet container you must keep in mind that e If the pellet container is in the same room as the boiler then the size of the pellet container must not exceed 500 liters approx 350kg e The container must be made of fireproof materials e The container must be positioned in a way that the raising angle of the feeding auger does not exceed 45 e It is advisable to use a container that can be closed with a cover 02920 ss pelltech o 11 www pelltech eu PV 20a External auger A feeding auger transports pellets from the pellet container to the burner The burner controls the work of the auger The auger is connected to the burner with a special hose The hose is made of melting material that acts as a safety measure against back burning The uppon side of auger with motor must be fixed to a storage or to some other object nearby with delivered chain Figure 7 shows correct position for external auger As the hose is a safety device it must be placed strictly as described below The vertical distance between auger outlet and burner inlet must be in range of 40
9. the same time 3 Fix the flange 2 of the burner to the door of the boiler 1 Make sure that the opening of the flange and the opening of the boiler door are aligned gt 10 Oo 3383 pelltech ease 10 www pelltech eu PV 20a 4 Fix the burning chamber 8 For that you need to put a ceramic seal 4 on the narrower side of the burning chamber and then put the camber through the door of the boiler in a way that the rearward wall of the burning chamber would lean on the door of the boiler Fixate the burning chamber with two grub screws 10 to the flange Caution The burning camber must be placed in a way that the burning grate will be as horizontal as possible The connection between the burner and the boiler must be tight in order to avoid any leakage of smoke gases 5 Connect the body of the burner to the burning chamber like it was done before disassembling in step 2 6 Fixate the halves of the burner with a M6 nut 9 The nut has to be rolled tight but not too hard The halves of the burner are connected correctly when there is no space between the mark on the connecting tube a line drawn on the tube with a dark marker and the body of the burner 7 Make sure the halves of the burner are connected correctly Make sure that when looking through the fire tube the igniter end tip is at the same level with the wall The tube of the inner auger must reach through its opening Igniter Caution After the
10. 70cm and horizontal displacement 10 20cm typical auger angle 30 45 External auger cannot be installed in position with angle greater than 45 The hose must be in angle of 50 or more to ensure free falling of the fuel 204 507 Figure 7 External auger installation units in mm Electrical connections The burner is eguipped with a standard oil burner plug that has 7 contacts There will be different connection schemes used for different boilers Usually the burner is connected to the boiler with a 5 wire cable It is also possible to connect with a 4 wire cable Caution All electrical connections of the burner must be made by a qualified professional Delltech ego 12 www pelltech eu NIR B4 53 72 T1 N I Tt Figure 8 Burner 5 wire connection PV 20a Figure 9 Burner 4 wire connection at Chs IN 5 PRI a a a gt a am a N 9 an N A aaa aa A ptlsalralraln pelea Xx Xx Xx xi Xi x Fa OKI OKI N fa fed TT WA Lay PE NT F I Tt A N mM AE 2 l Lo rs Lo Lo 1 1 IN L1 ha sip a quie ae Es al 2 i je M x Y x X2 10 K8 5 x2 9 FS x2 8 0 5 X2 g D y x2 6 RL K2 SBB GND Chs Chassis grounder M1 Fan M2 Flue gas fan M3 External auger M4 Internal feeder Ot Safety thermostat R1 Flame sensor SBB Controller board Se Igniter
11. d chimney must be completely tight All cleaning and maintenance openings must be closed with covers Feed screw motor The condition of the feeding screw motor is crucial for safety Therefore the motor must be replaced after every 2000 working hours or after 40 50 tons of pellets are burned or when the burner gives warning Burnered pellets amount in kg is accessible from info menu Battery Battery must be replaced when the burner gives warning message or after 5 years As the battery is also safety device burner monitors the state of battery and blocks next work cycle if battery voltage is not within limits o 3388 pelltech eagob sl 18 www pelltech eu PV 20a Fan The air in boiler room contains dust that can deposit on fan bearings The best cure is to keep boiler room as clean as possible Otherwise the fan bearings can get stuck after several years of working and must be replaced Resetting safety thermostat In case of overheating the burner flashes yellow indicator and displays message OVERHEAT The safety thermostat must be reset manually Thermostat is located on the horizontal tube of inner auger Make sure the burner has cooled down and disconnected from power supply Remove the cover by loosening 4 screws 2 on both sides Press small button on thermostat Connect power supply Press OK for 5s If indicator keeps flashing you need to replace the thermostat Gy oy ees Figure 11 Resetting the safety th
12. description 3 see HOLD FLAME status description 4 see Languages chapter Info Menu To enter info menu move in the main menu until the row INFO and press OK Content of info menu is following TOTAL total amount of pellets burned with this burner Amount is updated after every 10 kg COUNT amount of pellets burned since last zero Amount is updated after every 0 1 kg To zero the amount be sure you are in this menu and hold down OK for 5 sec FAN fan rotation speed as it is fan rotation speed as it should be base air selected base air in the main menu P currently working power power as it should be T burner internal temperature U Battery voltage level Feeder current DRAUGHT when underpressure sensor is connected draught is shown Languages To change the burner language move in the main menu until the row LANGUAGES and press OK Choose the requested language and press OK Burner has following languages english ENG estonian EST finnish FIN french FRA german GER greek GRE latvian LAT lithuanian LIT dutsch NED portuguese POR russian RUS serbian SRB spanish SPA slovakian SLV swedish SWE 02020 sssss pelltech eagob gt 16 www pelltech eu PV 20a Table 6 Parameters menu Parameter Description Unit Value Nr Name Default Min Max 7 TESTING AIR Fan speed for testing rps 42 38 50 IGNITION AIR Fan speed during ignition cycle rps 25
13. ed medication loss of parts tampering attempted repair by a not authorized person power supply errors or using poor quality fuel s pelltech 26 www pelltech eu PV 20a WARRANTY SHEET Burner type PV 20a Serial number nrrnensrnsersrnnerrnnnnnenn Date of sale EE juan oe date VE Customers contact details a eeetteeettetettteeeteaeetttaeettaees Installators name and signature cccccccnnnnnnnnnnnnnnnnnnnnnana non nnnnnnnns WARRANTY SHEET Burner type PV 20a Serial number Date of sale E TH Vita Customers contact details o cmccccnnnnnnnnnninnneninennn nan anannnnn Installators name and signature o cccccccnnnnnnnnnnnnnnnncnnanann non nnnnnnnns pelltech 27 www pelltech eu
14. el loading timeout Maintenance Pellet burner PV 20a requires systematic maintenance The maintenance period depends on the quality of the pellets and heating intensity The average maintenance period is 1 week The burner needs cleaning when the ash layer on the grate is thicker than 1 5 2 cm As even high quality pellets contain 0 3 0 5 ash then the burning grate must be cleaned at least once a week Depending on the quality of the pellets it might be necessary to clean the burner more freguently To clean the burner Turn off the burner by turning the thermostat to 0 Let the burner cool down for at least 1 hour Open the boiler s door to gain access to burning chamber Remove the grate and clean it from any residue Make sure all holes on the plate are clean Remove ash from burning chamber Clean the boiler The freguency of cleaning the boiler depends on the type of the boiler and heating intensity For more information about cleaning the boiler please see boiler s user manual 7 Put back the grate Make sure the stopper of grate is touching the burning camber from inside Misaligned base plate will change the air flow and reduce burning efficiency 8 Close the boiler s door to finish the maintenance and turn the thermostat to desired temperature om Pa o NR NB The burner grate must be checked and cleaned once a week This assures trouble free and effective operation of the burner The connection between the boiler an
15. ermostat s pelltech 19 www pelltech eu PV 20a Working principle Testing Before every startup the burner tests itself At testing time fan is turned on at maximum power If its speed doesn t reach 30 rps fan error will occure on display Battery loading is turned off and feeder is turned on If battery voltage is lower then 12V Battery low error will occure By testing the feeder has to make 1 full turn in 8 seconds if it fails to do it feeder error will occure Loading In the loading cycle internal feeder loads correct amount of fuel into burning chamber needed for ignition Loaded fuel amount is measured by counting internal feeder rotations Loading is correctly ended when feeder has made 22 rotations Internal feeder working depends on fuel level sensor e f level sensor recognizes fuel in burner for more than 1s the feeder is started e If feeder makes 1 5 rotations without fuel in burner then the feeder stops External auger is holding permanent fuel level in the feeder tube all loading time depending on level sensor e _ f level sensor does not recognize fuel in burner more than 1s the auger is started e _ If level sensor recognizes fuel in burner more than 5s the auger is stopped Maximum loading time is limited with 5 minutes in normal working conditions and 20 minutes after manual start Igniter is preheated in the end of loading cycle When internal auger has made 10 rotations full load
16. imum and boiler opening small a double hinge solution can be used As double hinges add another degree of freedom door must be fastened on both sides Slide out doors with guide rails is also an option 8 www pelltech eu PV 20a Boiler firebox length L Figure 5 should be at least 2 5 x the length of the burning chamber For PV 20a minimum of 420mm is acceptable leaving L1 approx 250mm The height should be enough to leave H1 below the burner about 100mm for ash Minimum dimensions L and H for PV 20a L2420mm H gt 350mm Figure 5 Boiler firebox requirements Burners are mounted to door using supplied oil burner flange Bolt hole circle diameter and bolt sizes can be customized by using custom flanges D1 and D2 given in Table 3 are only valid with supplied flanges Table 3 Mounting holes for boiler door D hole for burning chamber neck 90 D1 flange bolt ring diameter 130 150 D2bolt holes 8 9 Figure 6 Mounting holes with supplied flanges for boiler door 223 pelltech 9 www pelltech eu PV 20a Burner In order to install the burner properly you must go through the following steps 1 Remove the cover of the burner by loosening 4 screws of the cover There is no need to remove the screws 2 Remove the burning chamber from the burner by releasing the M6 nut that connects the halves of the burner Separate the halves of the burner by pulling the burning camber and slightly rotating it at
17. mperature The burner will go to Loading state If this is the first run extern al auger needs to be filled with pellets It can take up to 20 minutes To stop the burning turn boiler thermostat to lowest point The burner will now finish the process after all fuel is burnt Caution Never turn off a working burner from the main switch of the boiler Use the thermostat switch for that purpose In order to stop safely let the burner burn empty Do not leave the burner unattended when it has been necessary to use the emergency stop pelltech 14 www pelltech eu PV 20a Log Log screen displays last events burner states and their duration All states are described in Table 4 The duration is in form mm ss m in the middle or hh mm h in the middle For example Igniting 01m25 means the burner ignition state lasted 1minute and 25 seconds Last row of the log shows current state To reach the last row press the down button until you reach the current state The duration of current state updates every second or minute Table 4 Burner states Status Description WAITING The burner is switched on and waiting for command from the thermostat of the boiler TESTING Testing the fan battery feeder LOADING Loading pellets into burner for ignition after the command from boiler thermostat LOADING2 Second try if the first ignition was not successful IGNITION Loaded amount of pellets are in the burning chamber ig
18. niter and fan are working till photocell recognizes flame PREBURN Only the fan is working the igniter is off Pellets start burning properly BURNING Status of normal working External auger works by level sensor internal auger and fan are working by Photocell must see the flame HOLD FLAME Boiler has reached an estimated temperature and boiler thermostat switched off pilot flame is held in the burning chamber BURN END Boiler has reached an estimated temperature and boiler thermostat switched off the burner The external auger has stopped the internal feeder and fan are still working until all fuel is burned END BLOW When photocell doesn t see any flame only the fan keeps on working with minimum speed in order to make sure there is no fuel in burner BATTERY LOW Battery is not connected or empty NO POWER Supply power is not detected burner works on battery Settings To enter settings menu press OK To go back to log screen press ESC Delltech o 2 15 www pelltech eu PV 20a Table 5 Main menu Men Menu Description Default Selection list unr parameter ENG value 1 STATUS gt Submenu for status information 4 HOLD FLAME Flame holding allowed OFF ON OFF AUTO 7 BASE AIR Fan speed correction for all fan 2 1 0 1 2 3 4 5 speeds 0 8 LANGUAGE Language selection ENG See language list 9 PARAMETERS gt Parameter setup menu see Status menu description 2 see Info menu
19. nized fuel made from sawdust and cutter shavings Pellets are pressed with high temperature No extra materials are added pellets are held together by a natural ingredient found in wood lignin Pellets are CO2 neutral renewable fuel Pellets must be stored in a dry and ventilated room It is recommended to wear a respirator when handling pellets Only premium class pellets can be used with PV 20a Refilling must be carried out before the storage runs empty In case it happened burner has to be restarted and the loading time can be up to 20 minutes that external auger has enough time to refill itself Table 2 Pellet properties Raw material sawdust and cutter shavings Calorific value 4700 5100 kWh ton Volume weight ca 650 670 kg m Volume of 1ton 1 5 1 6 m Diameter 6 10 mm Length 3 5 x diameter Water content 8 10 96 Ash content Ca 0 596 To replace 1000 I light oil ca 2 tons or 3m Installation You will need the following tools in order to install the burner e Spanner no 13 for fixing the flange of the burner to the boiler e Spanner no 10 for connecting the body of the burner with the burning camber e Cross head screwdriver for fixing the cover of the burner e Amm hex wrench for fixating the boiler to the flange In order to install the burner the boiler must correspond to the following requirements e The door of the boiler must have a 90 mm opening placement opening for the oil burner e The thickne
20. rotations 12 the igniter is turned on for preheating If the igniter is turned on more than 1 minute at loading time the igniter will be turned off e f level sensor recognizes fuel in burner for more than 1s the feeder is started e ffeeder makes 1 5 rotations without fuel in burner then the feeder stops Igniting In ignition state the igniter is heated up and fan blows hot air through loaded pellets and ignites them Igniter is turned off after every 50 seconds to avoid overheating it and turned on again after 20s Preburn The purpose of preburn state is to fully ignite the pellets No fuel is added at preburn Fan works at the same speed as in ignition 2323 Deltech ego 20 www pelltech eu PV 20a Burning The running position of the burner Fuel is periodically added and fan is keeping speed according to air table Burning state lasts until boiler thermostat is switched off Auger control External auger is holding permanent fuel level in the feeder tube during Burning state The auger is controlled by fuel level sensor in following manner e Auger is started after level sensor does not recognize fuel in burner and internal feeder has done 2 half rotations e Auger is stopped when level sensor recognize fuel in burner for more than 1s Fuel level detection Pellet level in vertical feeder tube is detected by fuel level sensor optical Fuel is detected when pellets interrupt optical link between sensor pair
21. ss of the boiler door must be less than 100mm e The construction of the boiler must make it possible to open the door of the boiler with the burner connected and removing ash from the furnace If the door of the boiler is too narrow for opening it with the burner then extra hinges must be installed e f there is not sufficient less than 5Pa negative pressure in the furnace a draught fan should be installed for the exhaust gases e The boiler room where the burner is installed must fulfill all rules and recommendations given by authorities 02920 ss pelltech 7 www pelltech eu PV 20a e The boiler must be positioned in a way that there is enough space for cleaning the burner the boiler and the smoke pipe and removing the ash If flue gas temperature at the top of the chimney is less than 80C there is a risk of condensation In this case a pipe should be installed throughout the length of the chimney Note It is recommended to use a flue gas analyzer for adjusting the burner The burner must be adjusted using the flue gas analyzer also when you change the size or the guality of the pellets Boiler reguirements Pellet burners need regular cleaning and therefore boiler construction must allow the door to be opened without removing the burner The minimum size of opening in boiler depends on the position of door hinges and vice versa Figure 3 below illustrates the situation Point C is critical In order to keep door width min
22. ternal temperature is reached over check burner temp from INFO menu et point as fixed in setup menu Possibly check temp sensor connection back burning is happened check burning chamber and clean it check the chimney and under pressure draught in the boiler check the internal feeder screw connection and rotation check photocell at burning time Feeder error Feeder has not made any rotations in 8 check feeder sensor connection check magnet on the feeder shaft Feeder motor current is reached 0 75A check feeder screw connection check fan sensor connection esting time with full power check fan power connections Fan has not reached needed speed at check magnet on the fan shaft check fan bearings and rotation Battery low Battery voltage is less than 12V with load If there was a power failure then just wait working feeder hen it is charged replace the battery No power No network power check power connector cables check safety thermostat check burner for backburn Safety thermostat has turned off the power backburn o 3388 pelltech ease 25 www pelltech eu PV 20a Warranty Warranty object is pellet burner PV 20a and auger PA1500 or PA 2000 Producer gives 2 years warranty from the date of sale for the burner and auger Exeption is ignition element for this item warranty is 1 year Warranty does not cover defects caused by an accident misuse abuse improper installation or operation lack of reasonable care unauthoriz
23. to wear a respirator while handling pellets The boiler room where the burner is installed must fulfill all rules and recommendations given by authorities All electrical connections must be done by trained professionals No flammable materials must be stored near the burner Warnings Changing the construction of the burner without written permission from the manufacturer is forbidden gt Use only spare parts provided or approved by the manufacturer in order to avoid any damage to the burner and dangers resulting from it gt Welding is allowed only after disconnecting the burner from electric supply The circuit board must be removed from the burner gt Do not open any boiler door while the burner is in operation The burner complies with following directives and standards Directive 2004 108 EC Directive 2006 95 EC Directive 2001 95 EC Directive 2006 42 EC EN 15270 2008 EN 230 2005 EN 60370 2 5 2002 o 3388 pelltech ease 3 www pelltech eu PV 20a Package content The burner is shipped with following components included 1 Grate 2 Burner 3 Brackets for hose 2x 4 Flange 5 Ceramic seal 6 7 pole boiler connector 7 Hose 8 User manual Description PV 20a is a pellet burner that is intended to be used with 6 or 8mm wooden pellets You cannot use any other fuel to run this burner The unigue construction of PV 20a allows it to be used with different boilers liguid fuel solid fuel
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