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PART III: OPERATION

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position. Laboratory tests have shown that this is the optimal configuration to assure flame stability. If different settings are required, it
is possible to change the position: loosen the VB screw and slightly move the combustion head backwards, turning clockwise the knob
VRT. Fasten VB screw when the adjustment is accomplished.

Depending on the boiler application, it is possible to act on the holes (figure B) to improve the flame stability and NOx, CO emission
values. If necessary, close/open the holes in figure “B” using the screws kit given with the burner.

Attention! if it is necessary to change the head position, repeat the air and fuel adjustments described above.

VRT

VB

“all-ahead” position

“all-backwards” head position

X

x = 10 mm

A

B

A

B

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Содержание G270X

Страница 1: ...M039643CA 0 1 10 2022 BURNERS BRUCIATORI BRULERS BRENNER QUEMADORES ГОРЕЛКИ Microprocessor controlled MANUAL OF INSTALLATION USE MAINTENANCE LMV 5x Gas burners G225X G270X G325X ...

Страница 2: ...anufacturer declines all responsibility for non compliance with this manual Personnel training The user is the person organisation or company that has acquired the appliance and intends to use it for the specific purpose The user is responsible for the appliance and for training the personnel that operate it The user Undertakes to entrust the machine to suitably trained and qualified per sonnel Mu...

Страница 3: ... compliance with the regulations in force GENERAL INSTRUCTIONS DEPENDING ON FUEL USED ELECTRICAL CONNECTION For safety reasons the unit must be efficiently earthed and installed as required by current safety regulations It is vital that all saftey requirements are met In case of any doubt ask for an accurate inspection of electrics by qualified personnel since the manufacturer cannot be held liabl...

Страница 4: ...o not use the burner in situations other than the ones provi ded for in the data plate Do not use fuels other than the ones stated Do not use the burner in potentially explosive environments Do not remove or by pass any machine safety devices Do not remove any protection devices or open the burner or any other component while the burner is running Do not disconnect any part of the burner or its co...

Страница 5: ...nside the combustion chamber The ignition spark is provided by electrodes and a high voltage transformer a pilot flame may also be employed depending on burner configuration Pre ventilation of the combustion chamber is usually implemented according to gas directives The control panel onboard or separated allows the operator to monitor each operating phase Gas categories and countries of applicatio...

Страница 6: ...rol EI with no O2 trim control with VSD control EK with O2 trim control with VSD control BURNER TYPE G225X M G270X M G325X M G225X L G270X L G325X L Output min max kW 230 2250 340 2700 620 3250 230 2250 340 2700 620 3250 Fuel Natural gas I3B P Category see next paragraph Gas rate Natural gas min max Stm3 h 24 238 36 286 66 344 Gas rate LPG min max Stm3 h 8 6 84 12 7 101 23 121 Gas pressure mbar se...

Страница 7: ... and pressure values for the biogas Fuel Hi KWh Stm3 ρ kg Stm3 fQ fp LPG 26 79 2 151 0 353 0 4 Town gas 4 88 0 6023 1 936 3 3 Biogas 6 395 1 1472 1 478 3 5 ATTENTION The combustion head type and the settings depend on the fuel The burner must be used only for its intended purpose specified in the burner data plate ATTENTION The corrective factors in the above table depend on the gas composition so...

Страница 8: ... 636 487 845 292 80 579 132 1393 1002 687 538 875 310 100 592 145 1476 1085 791 642 942 353 G270X 50 1401 1501 550 100 1021 1251 725 526 450 533 384 624 190 65 564 117 1497 971 447 636 487 845 292 80 579 132 1528 1002 687 538 875 310 100 592 145 1611 1085 290 791 642 942 353 G325X 50 1451 1551 550 100 430 530 471 1251 725 284 320 450 533 384 624 190 65 564 117 1497 971 447 636 487 845 292 80 579 1...

Страница 9: ...ust be done in accordance with current local regu lations PS PSH PSL PSL PSH PS M M con valvole MB DLE con valvole VGD con valvole MBE gas inlet gas inlet gas inlet Legend 1 Filter 2 Low pressure switch PGMIN 3 Safety valve 4 Proving system pressure switch PGCP opzionale 5 High pressure switch PGMAX mandatory for MBE optional for VGD and DMV DLE 6 Butterfly valve 7 Upstream manual valve rampa 8 Ma...

Страница 10: ... Output kW Minima pressione gas in rete Minimum inlet gas pressure mbar Rp 2 50 DN65 Power kW minimum gas pressure in the network mbar DN65 How to read the burner Performance curve To check if the burner is suitable for the boiler to which it must be instal lled the following parameters are needed furnace input in kW or kcal h kW kcal h 860 backpressure data are available on the boiler ID plate or...

Страница 11: ...ure in the Network gas flow rate curvesPerformance Curves Gas pressure in the networkr mbar G225X M Power kW Gas pressure in the networkr mbar G270X M G325X M Power kW Power kW ATTENTION the gas rate value is quoted on the x axis the related network pressure is quoted on the y axis pressure value in the combustion chamber is not included To know the minimum pressure at the gas train inlet necessar...

Страница 12: ... chamber surveyed by means of the pressure gauge or taken from the boiler s Technical specifications Measuring gas pressure in the combustion head In order to measure the pressure in the combustion head insert the pressure gauge probes one into the combustion chamber s pres sure outlet to get the pressure in the combustion chamber and the other one into the butterfly valve s pressure outlet of the...

Страница 13: ...e stirrup only once the burner is installed to the boiler Packing The burners are despatched in wooden crates whose dimensions are GxX series 1600mm x 1000mm x 860 mm L x P x H Packing cases of this type are affected by humidity and are not suitable for stacking The following are placed in each packing case burner with detached gas train gasket or ceramic fibre plait according to burner type to be...

Страница 14: ...iagram In case the burner must be coupled with boilers with a combustion chamber smaller in dia meter or shorter than those described in the diagram please contact the supplier to verify that a correct matching is possible with respect of the application involved To correctly match the burner to the boiler verify the type of the blast tube Verify the necessary input and the pressure in combustion ...

Страница 15: ... of gas flow must follow the arrow on the body of the components mounted on the gas ramp valves filters gaskets NOTE the bellows unit the manual cutoff valve and the gaskets are not part of the standard supply first step install the flanges to prevent entry of foreign bodies in the gas line on the gas pipe clean the already assembled parts and then install the valve unit check gas flow direction i...

Страница 16: ...up and pressure switches plugs MultiBloc MB DLE Assembling the gas train ATTENTION it is reccomended to install the filter with gas flow parallel to the floor in order to prevent dust fall on the safety valve during maintenance operation Mounting 1 Mount flange onto tube lines use appropriate sealing agent 2 Insert MB DLE note position of O rings 3 Remove MultiBloc between the threaded flanges 4 A...

Страница 17: ...AX pressostato gas di massima 5 Azionatore con stabilizzatore di pressione incorpo rato 6 Azionatore On Off 7 Corpo valvola Filettata 8 Corpo valvola Flangiata Nelle versioni apparecchiatura Facile VD R deve essere installato a monte valvola 3 5 1 2 4 6 8 VD R VD V 3 5 1 2 4 6 7 VD R VD V min 5 Ø Ø VD R VD V PS 1 2 3 4 Sealing plug G1 8 ISO 228 5 Locking screw For version VB 2L only connection for...

Страница 18: ...uilt in pressure stabilizer Siemens VGD VRD SKPx5 Auxiliary optional micro switch Gas valve Se necessario il microinterruttore ausiliario POC deve essere ordinato un attuatore dedicato diverso da quello solitamente fornito Il collegamento è mostrato in figura WARNING removing the four screws BS causes the device to be unserviceable 3 5 2 1 4 6 6 8 SKP15 SKP25 SKP15 SKP25 5 2 1 3 4 7 1 PGMIN presso...

Страница 19: ...G 1 4 G 1 8 Strainer 1 9 3 4 5 2 11 7 6 8 2 V 1 V 10 1 2 4 3 9 1 6 10 3 2 11 10 5 6 7 8 9 Legenda pi Inlet pressure pm Pressure between val ves po Outlet pressure 238 190 mm 405 238 mm 405 mm Speed Sensor AGG 5 310 is a speed sensor kit used to monitor the speed of a motor This kit is used to mount the speed sensor directly on the motor casing ...

Страница 20: ...s with fan motor driven by inverter in addition to the air and fuel adjustment curves also have a fan motor speed adjustment curve Generally the curve of the inverter goes from 50 to 100 of the engine revolutions This in addition to improving the setting of the burner also allows a saving on the consumption of the fan engine Terminal interface with Inverter Input signals for the inverter depending...

Страница 21: ... WARNING It is forbidden to use the fuel pipes for the execution and or completion of the grounding The system must comply with the current regulations Earth the system always check in advance the connection functionality and compliance with the health and safety principles of the earth cable If in doubt ask for an accurate inspection by qualified technical engineers Check the connection to the gr...

Страница 22: ...ives at the time of the offer contract Provide sufficient protections for cables and connectors taking into consideration positioning spaces and the panel burner tracing sur faces Always consult beforehand the electrical drawings supplied in relationship to the topography of the feeding systems LMV2 3 LMV5 M Key C Capacitor 22 nF 250 V LME LMV Siemens control box R Resistor 1 MΩ M Terminal 2 LGB L...

Страница 23: ... TAMPERING WITH THESE E G DISCONNECTION EVEN PARTIAL OF THE ELECTRICAL LEADS OPENING THE GENERATOR DOOR DISMANTLING OF PART OF THE BURNER NEVER OPEN OR DISMANTLE ANY COMPONENT OF THE MACHINE EXCEPT FOR ITS MAINTENANCE TO SECURE THE MACHINE ACT ON THE ISOLATOR SWITCH IN CASE OF ANOMALIES THAT REQUIRED A SHUT DOWN OF THE BURNER IT S POSSIBLE TO ACT ON THE AUXILIARY LINE SWITCH LOCATED ON THE BURNER ...

Страница 24: ... driven by the external thermostats progressive burners or by the modulator fully modulating burners Integrated proving system burners equipped with LME7x LMV LDU S1 B1 B2 B3 B4 B5 G1 G2 G3 Keys B1 Lock out LED B2 Hi flame operation LED B3 Lo flame operation LED B4 Ignition transformer operation LED B5 Fan motor overload tripped LED G1 EV2 opening LED G2 EV1 opening LED G3 Gas pressure switch sign...

Страница 25: ...nt gas flow Drive the burner to high flame stage please refer to the LMVx documentation attached to this manual Start up procedure 1 Turn the burner on 2 the LMV control box starts the system test cycle the AZL display shows the System Test message at the end of the test it shows the main page and the system stops the safety chain is open waiting for the startup enabling signal standby Program pha...

Страница 26: ... the main page To access the main menu from the main page press the ESC key tiwce Main menu By pressing the ESC key once the Operational Status first item in the main menu menu is directly shown the Operational Status menu provides the following items Normal operation by selecting this item and pressing the ENTER key the main page is showed press ESC to go back to the main menu Status Reset it sho...

Страница 27: ...value To set the temperature pressure set point value that is the generator operating temperature pressure proceed as follows From the main page enter the main menu by pressing the ESC key twice by means of the arrow keys select Params Display press ENTER the system will ask you to enter the proper password by means of the arrow keys select Access w out pass access without password user level conf...

Страница 28: ...et point is set confirm by pressing ENTER otherwise exit without changings by pressing ESC Press ESC to exit the set point programming mode Once the temperature set point W1 is imposed set the Switch on SDon and the Switch off SDoff point of the 2 position controller To set these values select the item SD_ModOn SDOn by scrolling down the Load controller menu with the arrow keys and press ENTER the...

Страница 29: ...ys press ENTER to confirm and the press ESC to exit Press only ESC to exit without changing Press the ESC key until the following menu is shown scroll this menu down until the tiem AZL is reached confirm by pressing ENTER Times it sets the Summer SUM Time Winter WIN Time operation and the continent EU Europe US United States choose the Summertime Wintertime mode desired and cofirm by pressing ENTE...

Страница 30: ...ermal shock CSTP If the generator cannot suffer thermal shocks the CSTP Cold Start Thermal Schock function can be enabled This function is already set by the Technical service access by reserved password if this function is enabled when the burner starts upthe Thermal shock protection activated message will be showed If this function is not enabled after startup the burner will rapidly increase th...

Страница 31: ...urner in stand by If the BurnerOn mode is choosen the burner does not follow the modulator and probe settings but operates at the set load For further details see the LMV5x annexed manuals SetLoad Autom Manual Off SetLoad Curr 0 0 New 20 0 SetLoad Autom Manual Off Autom Manual Off Curr Automatic New Burner On Caution if BurnerOff mode is selected the burner stays in stand by Caution in the BurnerO...

Страница 32: ...ion reduces start flow rate anticlockwise rotation increases it Do not use a screwdriver on the screw VR The pressure stabilizer is adjusted by operating the screw VS located under the cover C By screwing down the pressure is increased and by unscrewing it is reduced Note the screw VSB must be removed only in case of replacemente of the coil Caution check that the range of the installed spring is ...

Страница 33: ...ccording to its mounting position remove the pressure switch plastic cover if the maximum pressure switch is mounted upstreaam the gas valves measure the gas pressure in the network when flame is off by means of the adjusting ring nut VR set the value read increased by the 30 if the maximum pressure switch is mounted downstream the gas governor gas valves group and upstream the butterfly valve lig...

Страница 34: ...kwise the knob VRT Fasten VB screw when the adjustment is accomplished Depending on the boiler application it is possible to act on the holes figure B to improve the flame stability and NOx CO emission values If necessary close open the holes in figure B using the screws kit given with the burner Attention if it is necessary to change the head position repeat the air and fuel adjustments described...

Страница 35: ...ecific maintenance is needed In case of anomalous noises when running check the condition of the bearings and eventually substitute them or completely substitute the motor Clean and examine the gas filter cartridge and replace it if necesssary Remove and clean the combustion head Examine and clean the ignition electrodes adjust and replace them if necessary Examine and clean the detection electrod...

Страница 36: ...gas supply closing the on off valve 2 Remove screws 1 4 using the Allen key n 3 and remove filter cover 5 in Fig 5 3 Remove the filter 6 and replace with a new one 4 Replace filter cover 5 and tighten screws 1 4 without using any force and fasten 5 Perform leakage and functional test pmax 360 mbar Bouchon à vis G 1 8 0 Filter cover 1 3 4 6 Screw plug G 1 8 2 Meter connection 5 Screw plug M14 Press...

Страница 37: ...h 1 2 3 4 5 6 7 1 Position VD on VB fig 2 3 2 Slide VD forward up to the stop fig 4 3 Screw VD on with 2 M5 screws for each max 5 Nm 44 in lb fig 5 6 4 VD can be mounted rotated by 180 fig 7 VB VD SKP15 001 SKP25 003 AIR Per la sostituzione degli attuatori agire sulle viti come indicato nel disegno ...

Страница 38: ...ontact metallic parts blast tube head etc other wise the boiler s operation would be compromised Check the electrodes position after any intervention on the combustion head C G AR V C G A O VR Key VRT Head adjusting screw AR Threaded rod V Fixing screw G Gas manifold OR O ring C Cover C V To replace the electrodes proceed as follows 1 remove the burner cover C r 2 disconnect the electrodes cables ...

Страница 39: ...oiler s operation would be compromised Check the electrodes position after any intervention on the combustion head EA ER 6 6 60 2 3 mm EA Ignition electrode ER Detection electrode 0 1 2 3 4 5 6 7 35 34 33 32 31 30 8 15 14 9 10 11 12 13 17 18 19 20 16 21 22 23 24 25 26 28 29 27 0 1 2 3 4 5 6 7 35 34 33 32 31 30 8 15 14 9 10 11 12 13 17 18 19 20 16 21 22 23 24 25 26 28 29 27 A A B B C C D D E E 50 8...

Страница 40: ...ther to finish using the burner or replacing and disposing of it based on the actual state of the appliance and any repair costs The use of the burner for other purposes after the expiry of the terms of use is strictly prohibited Seasonal stop To stop the burner in the seasonal stop proceed as follows 1 turn the burner main switch to 0 Off position 2 disconnect the power mains 3 close the fuel val...

Страница 41: ...witch functions and links Burner control damaged Replace burner control BURNER LOCKS OUT WITHOUT ANY GAS FLOW Gas valves don t open Check voltage on valves if necessary replace valve or the burner control Check if the gas pressure is so high that the valve cannot open Gas valves completely closed Open valves Pressure governor too closed Adjust the pressure governor Butterfly valve closed Open the ...

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Страница 44: ...ia L Galvani 9 35011 Campodarsego PD ITALY Tel 39 049 9200944 Fax 39 049 9200945 9201269 web site www cibunigas it e mail cibunigas cibunigas it Note specifications and data subject to change Errors and omissions excepted ...

Страница 45: ...Siemens LMV5x Service Manual M12920CC rev 2 1 08 2017 ...

Страница 46: ...e harmful Before any cleaning or servicing operation disconnect the unit from the mains by turning the master switch OFF and or through the cut out devices that are provided Make sure that inlet or exhaust grilles areunobstructed In case of breakdown and or defective unit operation disconnect the unit Make no attempt to repair the unit or take any direct action Contact qualified personnel only Uni...

Страница 47: ...6 2 Configuration of a pressure or a temperature probe type at X61 door 20 6 2 1 Configuration of a pressure or a temperature probe signal at X61 door 20 6 3 Configuration of the X62 door input signal 20 6 4 Setting the setpoint and the burner and the PID operative band 21 6 4 1 Set point 21 6 4 2 SD_ModON e SD_Mod Off 21 6 4 3 PID control parameters 22 6 5 Setting functions TL_ThreshOff and TL_SD...

Страница 48: ... must be connected to earth PE Volt must be 0 V between N PE NOTE PE protection earth it is not FE FE functional earth 1 1 2 Protective Earth PE and Functional Earth FE Protective Earth PE Known as an equipment grounding conductor avoids hazards by keeping the exposed conductive surfaces of a device at earth potential To avoid possible voltage drop no current is allowed to flow in this conductor u...

Страница 49: ...bles and to the burner housing e g use a electrical insulating conduit or distance parts e g plastic material see also Appendix Example for wiring earthing and shielding the LMV5 System Prefer a double pole ignition see drawingsbelow When using a double probe ignition the cables should be run close together to ensure that the area of emissions is as small as possible Double pole ignition recommend...

Страница 50: ...also Appendix Example for wiring earthing and shielding the LMV5 System 1 3 2 Shielding The LMV5 FE terminals for the shields are LMV5 internally connected with X52 4 this terminal must be connect external with FE see also 3 3 The shield terminals for the CAN Bus X50 1 X51 1 are connected direct with X52 4 the other shied terminals are connected via capacitors to prevent DC current For the cables ...

Страница 51: ...Cables for the Load controller Temperature or Pressure sensor set point load output at the LMV5 X60 X61 X62 X63 Together in cable duct 2 for Line voltage e g Cable for Ignition transformer Cables for other Line voltage signals e g Gas pressure switches Air pressure switches Cable for Gas valves SKP VGD Example of wiring see next paragraph Wireway and electrical conduit NOTE KEEP SEPARATE SIGNALS C...

Страница 52: ...8 ...

Страница 53: ...9 1 4 1 Servomotor wiring example 1 4 2 Bus cable wiring on LMV5x and AZL doors 1 4 3 EARTH connection example ...

Страница 54: ...burner will immediately turns off keys socket The user interface is made of display it shows menus and parameters ESC key previous level it goes back to the previous level menu or exits the programming mode without changing data ENTER key next level it confirms the data changing and jumps to the next menu parameter SELECT keys they select a menu item and change the parameter values AZL5x provides ...

Страница 55: ...nition position phase 38 The burner remains in that position because this is the only one work point in memory The fuel air ratio curve must be set until the maximum load limit 100 output During the setting the actuators move according to the curve points While the actuators move always check the combustion analysis point by point and the flame stability The fuel air curve points must be set durin...

Страница 56: ...12 2 2 LMV5x program structure ...

Страница 57: ...DED TO NOT USE O2 MONITORING IF FGR IS INSTALLED AND ACTIVE 2 3 Burner ID number The burner ID number corresponds to the burner serial number NOTE in case of call to the Service Center always tell the burner type and serial number see burner data plate NOTE burner ID number must be set Following the below route access to the programming levels of the menu 1st level 2nd level 3rd level 4th level 5t...

Страница 58: ...irmed by pressing Enter Display before the first password character is entered Enter Password The example displays when entering the third password character Enter Password S If the check of the password entered is positive the change to the next menu level takes place Otherwise the display returns to the main menu level To go back to the main menu press Esc until the first level menu is reached t...

Страница 59: ...inals 318 and 319 of the burner supply terminal block see below the system will lead to an immediate burner lockout In case of burner designed with automatic pull out system from the generator the burner flange end switch is connected to terminalsX3 03 1 e X3 03 2 If the contact open the burner automatically shuts down NOTE When the safety loop opens the burner will immediately turns off skipping ...

Страница 60: ...o address an actuator choose the corresponding actuator and follow the instructions on display When the actuator green LED flashes it means that one of the following function is set according to the number of blinks Blinks Actuator function 1 blink air damper actuator 2 blinks gas butterfly valve actuator 3 blinks oil pressure governor actuator 4 blinks auxiliary actuator AUX1 5 blinks auxiliary a...

Страница 61: ...so according to the next procedure By following the next table set both parameter OperatRampMod and TimeNoFlame to set the ramp up stop times for the VSD and the actuator opening speed from 0 to 90 Following the below route access to the programming levels of the menu by means the Esc 1st level 2nd level 3rd level 4th level 5th level 6th level Description Params Display Menu level for making the p...

Страница 62: ...nal output from the LMV to the client DCS or PLC Output Value Selection are Load Load 0 O2 Pos Air Pos Fuel Pos Aux1 Pos Aux2 Pos Aux3 Speed VSD Flame Temp Pt1000 TempNi1000 Temp Pt100 Temp X61 Press X61 IntLC must be set together with a modulating probe temperature or pressure The probe and its signal must be configured Doors allowed are X60 for temperature probe and X61 for pressure probes or an...

Страница 63: ... level 5th level 6th level Description Params Display Menu level for making the parameter set tings LoadController Settings for the internal load controller Configuration General configuration of the load controller Sensor Select Select actual value input Pt100 Ni1000 Temp sensor Press sensor Pt100Pt1000 Pt100Ni1000 NoSensor See the table below for the meaning of the choice Possible settings are P...

Страница 64: ...Sens End of pressure measuring range for input X61 0 99 9 bar 0 2000 C 0 99 9 bar 0 2000 C Set the probe value Example if a max 10bar Siemens sensor is used the voltage output signal will be 0 V at 0 bar while the 10 V signal will correspond to its maximum pressure 10 bar If the sensor is replaced with a max 16bar one the 0 V output signal will correspond to 0 bar while the 10 V output signal will...

Страница 65: ... 6th level Description Params Display Menu level for making the t Params Display SD ModOn General configuration of the load SD ModOn SD ModOff General configuration of SD ModOff the display will show The SD_ModOn default value for this parameter is1 that is the burner will light again at a temperature 1 lower than the set point Change value if needed by means of the arrow keys press ENTER to confi...

Страница 66: ...r for internal load controller StandardParam Adaption very fast fast normal slow very slow It is possible to manually set the PID parameters to any value in the setting range shown below to activate a PID regulation from the predefined standard values described below and edit it further if required or to use the adaption function self setting function instead of making the settings manually The LM...

Страница 67: ...t100 Ni1000 or Pt 1000 temperature sensor is connected to X60 3 and X60 4 terminals ATTENTION basically these parameters provide a function similar to the safety thermostat one but can not replace it The boiler must always operate with its safety thermostat connected properly NOTE the parameter TL_ThreshOff for the immediate shutdown must always be set to a value higher than the SD_ModOff threshol...

Страница 68: ... of the menu by means the Esc 1st level 2nd level 3rd level 4th level 5th level Range Description Params Display Menu level for making the parameter settings VSD Module Settings for the VSD module Configuration Speed Standardization Deactivated Activated Standardization process for fan speed By activating the standardization without starting the burner up the air actuator drives to ites maximum op...

Страница 69: ...rogramming levels of the menu by means the Esc 1st level 2nd level 3rd level 4th level 5th level 6th level Description Params Display Menu level for making the para meter set tings RatioControl GasSettings OilSettings Choose according to the fired fuel Special Positions IgnitionPos HomePos PrepurgePos PostpurgePos IgnitionPosGas Set the proper position IgnitionPosAir Set the proper position Igniti...

Страница 70: ...s corresponding to a hypothetic low flame stage Note points P1 and P2 are temporally mentioned 10 and 100 load independently from the actual load The operator can name the load on each point without respecting the actual load value in that point LMV5x will order those points automatically according to the load values set by theoperator With this setting by closing the thermostat series the burner ...

Страница 71: ... of oil ATTENTION as for increasing by few degrees it means that the increasing must be performed in order to avoid great excess of air or defect of air Therefore the increasing operation must be performed always checking the flue gas analysis by means of the combustion analyzer It is recommended to make increasing while maintaining O2 between max 7 5 and min 3 It is recommended to save new points...

Страница 72: ...Air actuator Do not exit by pressing Esc from the values column because data will not be stored Press arrows to select another actuator to be set for example press to choose Fuel Press keys to change the value Press Enter to confirm the value and go back to Fuel actuator Point Load 100 10 Fuel 90 O2 Air 50 VSD 85 Act on the pressure governor to adjust the fuel pressure at the proper value in order...

Страница 73: ...o the other points So it is necessary to check the adjustment of the points already set ATTENTION for proper operation it is necessary that the curve of each actuator does not reverse its slope ATTENTION When load value is changed by user LMV recalculates all the curve points according the new load value It may happen that the point you are adjusting once saved is moved to another position 0 20 40...

Страница 74: ...ects are the following 1 Pressures have reciprocal effects 2 The reduction of O2 can lead to a significant increase of NOx levels As a result of these reciprocal effects it is difficult if not impossible to adjust fuel air ratio control O2 trim control and the flue gas recirculation FGR function Even if an adjustment was possible the flame may become instable during operation or the required NOx l...

Страница 75: ...ings for firing on Gas or on Oil AirActuator GasActuat OilActuat AuxActuator AuxActuator 2 AuxActuator 3 AuxActuator 3 AuxActuator 3 MUST be chosen After the addressing activate the FGR servomotor 1st level 2nd level 3rd level 4th level 5th level 6th level Description Params Display RatioControl Parameter settings for fuel air ratio control GasSettings OilSettings Parameter settings for firing on ...

Страница 76: ... Open 10 4 Setting the load controller mode see the previous chapter regolazione senza FGR WARNING If one of the intLC internal Load Controller option must be choice a temperature sensor cannot be connected to the terminal X60 A temperature sensor with analogue output or a converter Ohm Æ mA or V must be used They must be connected to the terminals X61 WARNING If one of the extLC External Load Con...

Страница 77: ...culation temperature Auxiliary actuator 3 maintains the ignition position until an adjustable temperature is reached parameter FRG On Temp During the operation the burner regulate its load as per the set curve points without flue gas recirculation temp contr The position of auxiliary actuator 3 is determined depending on the flue gas temperature and the ratio control curve In addition the actuator...

Страница 78: ...minimum amount of flue gas The position is also used to ensure a defined damper position for emergency operation or automatically deactivated flue gas recirculation FGR FGR MaxPos Fact Maximum limitation of the required position of auxiliary actuator 3 calculated from the current temperature and the warm position The setting is made in steps of 1 and refers to the relevant curve point Interpolatio...

Страница 79: ...ion FGR factor of 50 leads to a 50 reduction of the damper positions If the temperature value of the smoke during the operation of the burner is higher than the temperature value during the commissioning the AUX3 position will be bigger than the set values To avoid a wide opening of the FGR butterfly valve it could be necessary to limit the automatic correction LMV52 400 This could be necessary if...

Страница 80: ... StageLoad 0 100 15 StageSetp_M od 1 100 Wcurrent 5 Stage Setp_Stage 1 100 Wcurrent 5 MaxTme Mod 1 63 min 3 min MaxTmeStage 1 63 min 3 min Cold start thermal shock protection maximum time per step multistage ThresholdOff 1 100 Wcurrent 80 Cold start thermal shock protection deactivation level referred to the current set point Wcurrent Additional Sens Deactivated Pt100 Pt1000 Ni1000 Deactivated Sel...

Страница 81: ...ation this function can be set at user level also see chapter manual operation the CSTP function is momentary excluded when enabling the automatic operation again the CSTP function previously set at Service level will be enabled as well ...

Страница 82: ...Password Description ManualOpe ration Menu level for activating manual operation with the preselected load Au tom Manual Off Selection of manual or automatic operation Automatic Burner on Burner off User Setting the load percentage for the manual operation To set the load percentage at which the burner must operate in manual mode proceed as described below 1st level 2nd level 3rd level Password De...

Страница 83: ...39 ...

Страница 84: ... V 10 15 50 60 Hz Imax 5 A PIN3 x Protective earth PE PIN4 x Supply voltage neutral conductor N PIN5 x Supply voltage live conductor L AC 230 V 10 15 50 60 Hz fuse 6 3 AT DIN EN 60 127 2 5 X4 01 Fuel selection internal if pin 1 2 is not used PIN1 x Fuel selection gas AC 230 V 10 15 50 60 Hz Imax 1 5 mA PIN2 x Fuel selection oil AC 230 V 10 15 50 60 Hz Imax 1 5 mA PIN3 x Fan contactor contact FCC o...

Страница 85: ... 5 mA PIN2 x Controller closes stage 3 AC 230 V 10 15 50 60 Hz Imax 1 5 mA PIN3 x Controller opens stage 2 AC 230 V 10 15 50 60 Hz Imax 1 5 mA PIN4 x Power signal for control of con troller AC 230 V 10 15 50 60 Hz Imax 500 mA X6 01 PIN1 x Start release oil AC 230 V 10 15 50 60 Hz Imax 1 5 mA PIN2 x Power signal start release oil AC 230 V 10 15 50 60 Hz Imax 500 mA PIN3 x Direct heavy oil start AC ...

Страница 86: ...nductor N PIN3 Fuel valve 2 oil AC 230 V 10 15 50 60 Hz 1 A cos 0 4 X7 02 PIN1 x Protective earth PE PIN2 x Neutral conductor N PIN3 Fuel valve 3 oil AC 230 V 10 15 50 60 Hz 1 A cos 0 4 X7 03 PIN1 x Protective earth PE PIN2 x Start release gas CPL LMV52 AC 230 V 10 15 50 60 Hz Imax 1 5 mA PIN3 x Power signal reserve AC 230 V 10 15 50 60 Hz Imax 500 mA ...

Страница 87: ...1 oil AC 230 V 10 15 50 60 Hz 1 A cos 0 4 X9 01 PIN4 x Fuel valve 1 gas AC 230 V 10 15 50 60 Hz 2 A cos 0 4 PIN3 x Fuel valve 2 gas AC 230 V 10 15 50 60 Hz 2 A cos 0 4 PIN2 x Fuel valve gas AC 230 V 10 15 50 60 Hz 2 A cos 0 4 PIN1 x Fuel valve shutoff valve gas AC 230 V 10 15 50 60 Hz 2 A cos 0 4 X9 02 PIN2 x Protective earth PE PIN1 x Neutral conductor N X9 03 PIN4 x Pressure switch min gas start...

Страница 88: ...vely QRA2 QRA4 U QRA10 refer to section Description of inputs and out puts Umax X3 04 PINS Imax 0 5 mA X50 PIN6 x Reference ground PELV PIN5 x Communication signal CANL DC U 5 V Rw 120 Ù level to ISO DIS 11898 PIN4 x Communication signal CANH PIN3 x AC power supply for actuators display and operating unit AZL5 AC 12 V 10 15 50 60 Hz Fuse max 4 A PIN2 x AC power supply for actuators display and ope...

Страница 89: ...emperature sensor input PT100 X61 PIN5 x Functional earth for shield connec tion PIN4 x Reference ground PIN3 x Current input for temperature pressure signal 0 4 20 mA DC 0 4 20 mA PIN2 x Voltage input for temperature pressure signal DC 0 10 V DC 0 10 V PIN1 x Power supply for temperature pressure transmitter approx DC 20 V Max 25 mA X62 PIN5 x Functional earth for shield connec tion PIN4 x Refere...

Страница 90: ......

Страница 91: ......

Страница 92: ...Note Specifications and data subject to change Errors and omissions excepted ...

Страница 93: ...nd an earth external wire for the motor ground The cable for the 4 20mA signal that controls the VSD must be shielded only LMV5x side ends connected to the equipotential terminal If the VSD is not inside the control panel the cable must be laid separately inside a metallic sheath earthed by means of rings As for the speed sensor cable and QRI detection probe cable provide a Ethernet cat 5 or 6 cab...

Страница 94: ...Annex1 Example for motor cable ...

Страница 95: ......

Страница 96: ...Annex 2 Example for sensor cable ...

Страница 97: ......

Страница 98: ......

Страница 99: ...PE Power supply Line voltage Gas L1 High Voltage Transformer N M Power supply Line voltage FE X73 Speed sensor VSD Fan Motor Separate conduit shielded line voltage cable X70 X10 02 X9 01 X4 02 Separate plastic conduit for high voltage ign cable CAN Bus shielded cable Shielded Low voltage cable X9 02 X52 2 X52 4 Cable duct 2 for Line voltage Ignition Gas valves Other Line voltage signals Cable duct...

Страница 100: ...tion and current fuel throughput The LMV52 system uses an O2 sensor QGO20 an external O2 module and the standard components of the LMV51 sys tem The PLL O2 module is a detached measuring module for the QGO20 sensor and for 2 temperature sensors Pt1000 LG Ni 1000 The module communicates with the LMV52 via CAN bus The fuel meters must be connected directly to the fuel related inputs of the basic uni...

Страница 101: ...e defined system cables AGG5 641 and AGG5 631 result from the points of intersection in the graph 50 48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 0 5 1 25 2 3 5 7 8 AGG5 631 AGG5 641 4 6 AGG5 631 cable type 2 AGG5 641 cable type 1 1 1 x SQM45 2 2 x SQM45 3 3 x SQM45 4 4 x SQM45 5 2 x SQM48 7 2 x SQM45 1 x SQM48 8 3 x SQM45 1 x SQM48 6 1 x SQM45 1 x SQM48 Cross section area...

Страница 102: ......

Страница 103: ...f CAN bus cable 100 m Whenever the distance between the LMV5 and the last actuator exceeds 20 m or if more than one SQM48 is used on the burner refer to sizing chart Determination of maximum cable length a second transformer is required for powering the actuators In that case transformer 1 powers the LMV5 basic unit and the AZL5 display and operating unit Fig 1 Transformer 2 powers the actuators F...

Страница 104: ...2 N F T4 AC2 12 V 5 5 3 Not used M L Power trafo 2 AGG5 2 No bus termination No bus termination Bus termination 5 5 5 5 No bus termination No bus termination Installation in the control panel actuator on the burner CAN bus cable LMV52 SA 25 m with 4 actuators and O2 module PLL52 X50 RAST3 5 Trafo X52 Power trafo 1 AGG5 2xx 12 V AC1 12 V LMV52 basic unit CANH F1 T6 3 X10 01 F3 T4 X51 AZL5 AC1 12 V ...

Страница 105: ...powered by a sec ond transformer to be located near the actuators and the O2 module Connect the power supply line from that transformer to the O2 module PLL52 in ex ample 3a SA6 in example 3b Auxiliary terminal lines AC1 AC2 M and from there via bus cable AGG5 640 cable type 1 through to the second actuator SA and the O2 module The fuses required for transformer 1 are accommodated in the LMV52 bas...

Страница 106: ...on facility 18 8 1 Inputs and outputs Mounting panel shielding connection Communication and power supply for LMV52 Mounting panel shielding connection Communication and power supply Temperature sensor 7550a14e 0903 Temporary connection of AZL5 Mains connection QGO heating Temp comp QGO Power supply temp comp GND Thermocouple GND Nernst voltage Temperature sensor 1 X84 12VAC1 12VAC2 CANH CANL GND X...

Страница 107: ...t o j o i n t h e f l u e g a s e s o n t h e i r w a y f r o m t h e b u r n e r t o t h e d e t e c t o r D F l o w v e l o c i t y 1 1 0 m s F l u e g a s t e m p e r a t u r e a t t h e m e a s u r i n g p o s i t i o n A 3 0 0 C S o n d e O 2 Q G O 2 0 e t c o l l e c t e u r d e s g a z d e f u m é e A G O 2 0 C o n d i t i o n s r e q u i s e s p o u r u n e d é t e c t i o n c o r r e c t ...

Страница 108: ... s s e p o u r B 1 B 2 B 2 T e n s i o n d e t h e r m o c o u p l e M U 3 S i g n a l d e l é l é m e n t d e c p m p e n s a t i o n d e t e m p é r a t u r e G 2 A l i m e n t a t i o n d e l é l é m e n t d e c o m p e n s a t i o n d e t e m p é r a t u r e G N D M a s s e d u b l i n d a g e 3 x 1 5 m m Q 4 C h a u f f a g e d e s o n d e Q G O A C 2 3 0 V Q 5 C h a u f f a g e d e s o n d e...

Страница 109: ... i s r e c o m m e n d e d t o l e a v e t h e m e a s u r i n g s y s t e m Q G O a n d R P O s w i t c h e d o n D u r i n g t h e h e a t i n g u p p h a s e t h e d e t e c t o r c o u l d d e l i v e r a n i n c o r r e c t s i g n a l N e v e r u s e a c o l d Q G O 2 0 i n t h e f l u e w a y w h i l e b u r n e r i s o p e r a t i n g A f t e r c h a n g i n g t h e s e n s o r c h e c k t...

Страница 110: ...A G O 2 0 0 0 2 A A R a u c h g a s e i n t r i t t B R a u c h g a s a u s t r i t t C K e r b e D F l a c h d i c h t u n g b e i l i e g e n d L 1 8 0 m m f o r A G O 2 0 0 0 1 A L 2 6 0 m m f o r A G O 2 0 0 0 2 A A F l u e g a s i n l e t B F l u e g a s o u t l e t C N o t c h D F l a t s e a l e n c l o s e d L 1 8 0 m m p o u r A G O 2 0 0 0 1 A L 2 6 0 m m p o u r A G O 2 0 0 0 2 A A E n ...

Страница 111: ...5 r h Transport DIN EN 60 721 3 2 Climatic conditions class 2K2 Mechanical conditions class 2M2 Temperature range 30 70 C Humidity 95 r h Operation DIN EN 60 721 3 3 Climatic conditions class 3K5 Mechanical conditions class 3M2 Temperature range 20 60 C Humidity 95 r h Condensation formation of ice or ingress of water are not permitted Terminal ratings cable lengths and cross sectional areas Refer...

Страница 112: ...L GND SHIELD 12VAC1 12VAC2 CANH CANL GND SHIELD AZL5 x FE FE SQM4 LMV52 Brown brn White wh Yellow yl Green grn Black blk Brown brn White wh Yellow yl Green grn Black blk Flue gas temperature PLL52 PLL52 X87 3 Shield connection X87 2 Signal reference X87 1 Temperature sensor Pt LG Ni1000 Supply air temperature FE Bus connection GND M Thermocouple B2 Power supply temperature compensation G2 Temperat...

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