background image

10

GB

 VALVES UNIT

M

VGD 20.

DUNGS

Made in Germany

VGD 20 valve body

SKP 75

SKP 15

VCV L valve body

pG

pL

pF

VCV L   (slow opening)

pF: chamber of 

combustion signal 

(possible)

Air signal withdrawal 

pipe (polyethylene)

Minimum gas pressu-

re pressure switch

(1) Note: installation of the combustion chamber compensation tube is recommended in order to optimise opera-

tion of the valve.

pF: chamber of 

combustion signal 

(possible)

(1) Note: installation of the combustion chamber compensation tube is recommended in order to optimise opera-

tion of the valve.

Air signal withdrawal 

pipe (polyethylene)

Gas signal withdrawal 

pipe (rigid)

Minimum gas pressu-

re pressure switch

Summary of Contents for LMB G 700

Page 1: ...UNI EN ISO 9001 CERTIFIED COMPANY LMB G 700 LMB G 1000 Two stage progressive modulating mode gas burner Installation use and maintenance manual GB...

Page 2: ...ortant indications regarding safety installation use and mainte nance of the product Keep it carefully for future reference Installation must be carried out by qualified staff in compliance with Techn...

Page 3: ...d the parts that may become a potential source of danger must be made harmless The transformation from one family of gas natural gas or liquid gas to another family of gas must only be perfor med by q...

Page 4: ...and controlled by qualified staff Never exchange the neutral and phase cables The burner can be connected to the mains electricity with a plug socket connection only if this is equipped in a way that...

Page 5: ...ture at the combustion head with reduced flow rate start up The conformation of the carburisation head allows the use of all natural mixed and liquid gases consult the technical after sales staff for...

Page 6: ...dbA 80 81 Weight of the burner body without ramp Kg 30 31 U M It is possible the 60 Hz power supply only with suitable electric motor WORK CURVES Reference parameters for choosing blown air gas burner...

Page 7: ...is instruction 0 00 1 00 2 00 3 00 4 00 5 00 6 00 7 00 8 00 mbar 50 100 200 300 400 500 600 700 800 900 kW If the operating point falls within the shaded area you must insert the gas diaphragm and loc...

Page 8: ...lay 10 Flow nozzle 11 Burner flange 12 Sampling point air 13 Ring regulation 14 Air pressure switch 15 Flange insulation 16 Combustion head 17 Air vent 18 Ionisation electrode 19 Ignition electrode 20...

Page 9: ...Fm M mm mm mm mm mm mm M Vite G 700 510 540 166 370 286 246 M12 G 1000 510 540 196 370 286 246 M12 G 700 VCV L125 mm VCV L240 mm C 750 950 hV 237 340 G 1 1 1 2 U M G 1000 VCV L240 mm VCV L350 mm VGD2...

Page 10: ...ssu re pressure switch 1 Note installation of the combustion chamber compensation tube is recommended in order to optimise opera tion of the valve pF chamber of combustion signal possible 1 Note insta...

Page 11: ...r 800 2 1 2 1 1 2 With reducer d 18mm Without reducer NATURAL GAS 0 5 10 15 20 30 150 100 200 300 400 500 600 700 kW mbar 800 1 1 2 2 With reducer d 14mm Without reducer LPG VCV 240 inlet pressure VCV...

Page 12: ...0 1000 kW mbar 2 1 2 2 1 1 3 3 3 VGD 20 403 inlet pressure VCV 350 inlet pressure VCV 240 inlet pressure Pv pressure downstream of the ramp With reducer d 23mm Without reducer M 0 10 20 30 40 300 350...

Page 13: ...ly see CONNECTION LAYOUT Incorrect connection can damage the appliance and the place of use Falls and mechanical stress can damage some safety functions In this case do not install the appliance even...

Page 14: ...e L BC flame tube short L BL flame tube long M D L BC L BL FM Fm M mm mm mm mm mm M screw G 700 166 235 325 286 246 M12 G 1000 196 230 310 286 246 M12 The system must be complete with the accessories...

Page 15: ...wal polyethylene pipe T to the connection pL on the VCV valve and on the quick coupling S of the burner fig B VCV L slow opening To fix the valves unit fig A to the burner use the 4 washers a and the...

Page 16: ...rectly and there are no gas leaks in the coupling M12 x 20 screws Connect the supplied air withdrawal polyethylene pipe T to the connection R1 on the SKP75 valve and on the quick coupling S of the bur...

Page 17: ...mer secondary to the appliance EARTH and NEUTRAL Now connect the other terminal of the transformer secondary to the appliance LINE PHASE PHASE in the case of PHASE PHASE mains power supply it is neces...

Page 18: ...V Marrone L 300 Bianco L 300 Nero 1x1 5 L 100 Nero 1x1 5 L 100 1 2 3 Blu Nero 1 2 L1 L2 L3 L N LB PS N TC CE RT CO M 4 G V PA PG 3 VE 1 2 3 4 1 2 3 4 Tmf KEY L Line N Neutral L1 Three phase line L2 Th...

Page 19: ...t timing for release 0 2s 4s Continuous key pressing timing for temporary shutdown 5s Manual mode functioning timeout 4 minutes Timeout communication with display 60s Maximum duration of access to men...

Page 20: ...f of the gas inlet pressure The SEALING CONTROL function is carried out with the following sequence heat request first stage valve opening for 2s and relative closure checking sealing of the safety va...

Page 21: ...safety time the appliance is blocked and the voltage is definitively re moved to the first stage solenoid valve and the ignition transformer Post ventilation is performed with the damper totally open...

Page 22: ...ion suitable for the scale of the same pro be corresponding to start up flow rate with gas flow always closed c Formation sequence of the start up flame the coils relative to the gas solenoid valves a...

Page 23: ...ning regulator management delay tv1 a First stage valve opening time tvs c Safety valve sealing check time tvs a Safety valve opening time tv1 c Work valve sealing check time Two stage progressive fun...

Page 24: ...us modulation CS Functioning request consents FAN Fan motorI GN Ignition transformer VS Safety valve V1 First stage valve V2 Second stage valve FL Flame signal AL Block signalSA Air damper tpv Pre ven...

Page 25: ...confi guration menus of the system and release the appliance The control and command panel is composed of an LCD with back lit display area and 4 function keys Key functions USER INTERFACE Icon meani...

Page 26: ...o back to the normal display MODIFY PARAMETER The values of the parameters linked to burner functioning can be modified and memorised During the display of the parameter of interest it is possible to...

Page 27: ...lied that is linked to the functioning status of the burner and the setting of some parameters In fact in the case of enabling the valves sealing control procedure from the parameters menu valve provi...

Page 28: ...play and consequent management of the menus stated previously during the normal display phase it is necessary to follow the procedure given a PROLONGED PRESSING OF KEY i By prolonged pressing for 5 se...

Page 29: ...is confirmed by the following display The enabling on display and management of the menus has duration of 120s after which the return to normal display mode takes place To access the menus again repea...

Page 30: ...i during the following di splay HRS Stage burner HRS MENU REPRESENTATION INFORMATION MENU INFO TIMER Burner total functioning hours Timer reset Burner functioning cycles CYCLES COUNTER Burner no igni...

Page 31: ...ectively in first and second stage total functioning cycles of the burner are equal to the first stage cycles In the case of modulating burner only the total functioning cycles of the burner are displ...

Page 32: ...he current position of the air damper servo motor is displayed closure total first stage total opening or second stage TWO STAGE BURNER Flame signal in micro A uA Flame signal in micro A uA If servo m...

Page 33: ...ress the key i during the following display flashing By doing this access the reset request confirmation display with duration of 5s CYC Pressing the key again determines the reset of the servo motor...

Page 34: ...functioning hours Position 2 8 Anomalies log per functioning hours Position 3 8 Anomalies log per functioning hours Position 4 8 Anomalies log per functioning hours Position 5 8 Anomalies log per fun...

Page 35: ...omalies anomaly code and type and of the respective burner functioning cycles The most recent anomaly is memorised in position 1 until reaching the least recent in position 8 An example is given below...

Page 36: ...er displayed flashes In MODIFY PARAMETER VALUE mode use the and keys to modify the value Press key i to memorise the current value displayed To exit this mode without memorising the value press key R...

Page 37: ...tage solenoid valve activation or minimum modulation in the burner ignition phase Post ventilation time in sec Parameter value da 0 a 30 This advance can be set from 0 to 30 of the first stage air flo...

Page 38: ...0s without pressing the keys Parameter value da 0 a 30 Serv menu installer If the burner is two stage the SERV MENU is organised as per table 5 If the burner is modulating the SERV MENU is organised a...

Page 39: ...etermined via the cams with reference to the scale on the relevant disc The cams are manoeuvred by means of the supplied spanner they are clutched and self locked The air damper servo motor must be of...

Page 40: ...500 600 700 800 900 kW Fig 1 Shaded area Work area with gas reduction diaphragm Work area without gas reduc tion diaphragm Assembly of the gas reduction diaphragm To insert the gas reduction diaphrag...

Page 41: ...G31 Fig 4 DG Shaded area Work area with gas reduction diaphragm Work area without gas reduc tion diaphragm Assembly of the gas reduction diaphragm only natural gas To insert the gas reduction diaphrag...

Page 42: ...00 1 00 2 00 3 00 4 00 5 00 6 00 7 00 8 00 mbar 50 100 200 300 400 500 600 700 800 900 kW m i n Diagram B Ex If the burner should operate at 600kW with a counter pressure of 3 mbar the air ring must...

Page 43: ...stment ring which corresponds with the marks on rod T Fig 7 Ex If the burner should operate at 700kW with a counter pressure of 3 mbar the air ring must be positioned in corre spondence with mark 2 on...

Page 44: ...er in correspondence with the desired value reading plate T Tighten the knob after adjustment has been completed P Combustion head shutter placement G700 G1000 Detail of shutter adjustment Max 3 2 1 M...

Page 45: ...ring the connection rod A to the securing point F on the semi Archimedean screw bring the pin B to the connection rod A on the securing point F re insert the seeger ring in the pin housing B View of t...

Page 46: ...the terminal block so that you can use it to get the high and low flame burner levels You must be able to have a high or low flame available during adjustment Tmf Connect the instrument for combustion...

Page 47: ...Start up the burner If the burner does not start up turn the N slightly in position and repeat start up The burner starts Low flame SKP gas valve start up B low flame adjustment A high flame adjustmen...

Page 48: ...ck gas flow If flow is lower than desired open the air shutter See Combustion head shutter placement If the flow is higher than desired close the air shutter When gas flow is correct use the Tmf switc...

Page 49: ...ith slow start up adjustment Unscrew screw H and turn knob M fig 2 3 Lock screw H Further adjustments VCV L valve 7 4 Adjusting the opening brake Further optimisation of slow start up can be ob tained...

Page 50: ...rner operating range Refer to the pressure flow curves indicated below 0 10 20 30 40 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 kW mbar 2 1 2 1 3 3 VGD 20 403 inlet pressure VCV 350...

Page 51: ...ressure rising 1 NC open 2 NO close with pressure dropping 1 NC close 2 NO open Remove the transparent lid and act on the regulation disc A p COM NO NC 2 1 3 A Minimum gas pressure pressure switch The...

Page 52: ...st not touch the deflector or other metal parts for any reason as they would loose their function compromising burner functioning It is good practice to check the correct position after every interven...

Page 53: ...rt up cycle If this anomaly persists the board will carry out a block shutdown burner control anomaly SOLENOID VALVESIf there is no monitor signal at least 3 attempts are made to perform the start up...

Page 54: ...electrode making use of the ionisation phenomenon c Carry out a functioning cycle and when burner ignition has been checked close the gas supply in order to obtain flame switch off check the repetitio...

Page 55: ...in normal working position the appliance repeats the start up cycle max 3 cycle repetitions the fourth consecutive time the flame goes out in normal working position causes a block shutdown Every 510...

Page 56: ...over A Remove the clamp covers A ATTENTION these parts may be live during functioning 1 1 A M It is now possible to access the screws 2 that block the electric control board lid B Loosen the screws 2...

Page 57: ...on head and regulation of the air ring To access the combustion head and to regulate the air ring loosen the two screws 4 Slide out the right RH or left LH pin according to necessity and the position...

Page 58: ...l gasket ATTENTION During the assembly phase of the combustion head in its seat control that the gas sealing gasket highlighted in the figure is well positioned M GAS CONVERSION To transform from the...

Page 59: ...e blocks The gas valves do not open Check valves functioning There is no discharge between the points of the electrodes Check ignition transformer fun ctioning and the positioning of the electrode poi...

Page 60: ...fications it deems appropriate for improvement of the pro duct without forewarning Cod Z397005940 Rev 01 03 2019 Made in Italy LAMBORGHINI CALORECLIMA Via Ritonda 78 a 37047 San Bonifacio Verona Itali...

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