GAS BURNERS. techniques for energy saving MODELS G A S T E C BLU P AB BLU P AB. Natural gas mbar LB 1045

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1 GAS BURNERS MODELS G A S T E C BLU P AB BLU P AB Natural gas mbar LB

2 LB1045 mbar 10 BLU / P AB ( mbar) TECHNICAL DATA MODELS Thermal power max. Thermal power min. Max. natural gas capacity Min. natural gas capacity Max. natural gas pressure Voltage Motor Rpm Fuel : BLU PAB BLU PAB 50 Hz kw kcal/h kw kcal/h Nm 3 /h Nm 3 /h mbar V ,6 47, / ,7 52, / P.c.i. Natural gas kw= 35,9 MJ/Nm 3 = kcal/nm 3 N WORKING FIELDS BLU P AB BLU P AB kw kcal/h x Burner Potenza 900output E OVERALL DIMENSIONS D D1 B A C M I * * MODELS BLU PAB BLU PAB * optional A B C D D = Short head D pag.2 E D1 = Long head F G H 245* 245 I L M M14 M14

3 LB1045 BLU / P AB ( mbar) E OVERALL DIMENSIONS D D1 B C A M I MODELS BLU PAB MC BLU PAB MC A B C D D D = Short head E F D1 = Long head G H 245* 245 I L M M14 M14 GAS TRAIN INSTALLATION 1 Gas piping 2 OnOff valve 3 Vibration damper coupling 4 Gas governor (Optional) 5 Min. gas pressure switch 6 Leakage control device (Optional) 7 Multibloc Gsa valve 8 safety gas valve 9 working gas valve Max. pressure 30 mbar To be supplied by the installer 5 8 Max. pressure 50 mbar ELECTRICAL CONNECTIONS All burners factory tested at 400 V 50 Hz threephase for motors and 230 V 50 Hz monophase with neutral for auxiliary equipment. If mains supply is 230 V 50 Hz threephase withuot neutral, change position of connectors on burner as in fig. Protect burner supply line with safety fuses and any other devices required by safety standards obtaining in the country in question. CONNECTION TO THE GAS PIPELINE Once connected the burner to the gas pipeline, it is necessary to control that this last is perfectly sealed. Also verify that the chimney is not obstructed. Open the gas cock and carefully bleed the piping through the pressure gauge connector, then check the pressure value trough a suitable gauge. Power on the system and adjust the thermostats to the desired temperature. When thermostats close, the sealing control device runs a seal test of valves; at the end of the test the burner will be enabled to run the startup sequence. pag.3

4 LB1045 BLU / P AB ( mbar) BURNER STARTUP Once connected the burner to the gas pipe make sure that there are no leakages. Air bleed the pipe through the pressure gauge fixing point and check the pressure with a pressure gauge. Turn the thermostats to the desired temperature. PRELIMINARY CHECKS Before starting up the boiler check the following: gas type and feed pressure; gas valves closed; the seals in the pipe fittings; gas pipe breather and input pressure; that the cable complies with the diagram and the phase and neutral wires correspond; that the burner shuts down when the boiler thermostat opens; the seal of the boiler furnace which prevents air from entering; the seal on the flueboiler pipe fitting; the condition of the flue (sealed, free from blockage, etc ).If all these conditions are present, start the burner. The control device starts the motor to carry out prewashing of the combustion chamber. During this prewash period (about 30 seconds) the device checks that air pressure is correct via the air pressure switch. At the end, it supplies power to the transformer and opens the gas valves. The flame must be lit and stabilize within 3 seconds, which is the device's safety time limit. Check to ensure the flame is lit before placing any control instrument in the flue. Adjust and check the gas flow necessary for the boiler at the meter. Adjust the air flow according to the gas flow to obtain correct combustion. ADJUSTING THE COMBUSTION PROCESS IMPORTANT: to obtain the right adjustment of the combustion and thermal capacity it is important to analyze the reducts of combustion with the aid of suitable instruments. The combustion and thermal capacity adjustment is done simultaneously, together with the analysis of the products of combustion, making sure that the measured values are suitable and that they comply with current safety standards. On this matter, please refer to the table and figure below. THESE OPERATIONS MUST BE DONE BY PROFESSIONALLYQUALIFIED TECHNICIANS. 30 1,3 Natural Gas 1,25 CO 2 CO 9,6% <50 ppm 20 1,2 15 1,15 1,2 1,2 10 1, THERMAL 90 POWER (kw) LANDIS LGB 22 UPCYCLE The control box starts the burner fan, to carry out the prepurging of the combustion chamber, and cheks the vent air pressure through the air pressure switch. At the end of prepurging, the ignition transformer cutsin and generates a spark between the electrodes. At the same time the two gas valves open (Vs safety valve Normal operative cycle ignition Operative cycle with flameless and Vl Low flame t2 t3 t4 t2 t3 working valve). Gas pressure switch Motor The total safety, in t1 t1 case of missed ignition Air pressure switch Transformer t5 t5 or casual bur Gas valve ner's flameout, is granted by a ionisation probe which High flame ON/OFF Flame detection Lock out lamp t6 Description cutsin and sets the t1 pressure switch control timeout burner shutdown within the safety time. In case of gas lack or a t2 major pressure drop, the minimum air pressure switch shuts t3 prewashing time down the burner. t4 safety time t5 preignition time pag.4 t6 timeout for air pressure confirmation timeout to enable fuel 2nd valve t4 9" 3" 30" 3" 3" 8"

5 LB1045 BLU / P AB ( mbar) + C ADJUSTING THE PRESSURE REGULATOR The pressure regulator, complete with its incorporated filter, must be installed to avoid contaminants reaching the gas valve. It is important to ensure certain conditions: The pressure of the gas must not exceed the established maximum pressure. To increase the pressure of the gas supply, tighten screw C; to reduce the pressure, loosen screw C. After making any adjustments, put the cap back in place. ADJUSTMENT OF GAS MINIMUM PRESSURE SWITCH Unscrew off and remove cover M. Set regulator N to a value equal to 60% of gas nominal feed pressure (i.e. for nat. gas nom. pressure = 20 mbar, set regulator to a value of 12 mbar; for L.P.G. nom. pressure of G30/G31 30/37 mbar, set regulator to a value of 18 mbar).screw up cover M DJUSTMENT OF THE AIR PRESSURE SWITCH Unscrew screws A and B and remove cover C. Set the pressure switch to the minimum by turning regulator D to position 1. Start the burner and keep in low flame running, while checking that combustion is correct. Through a small cardboard, progressively obstruct the air C intake until to obtain a CO2 increase of 0,5 0,8% or else, if a pressure gauge A is available, connected to pressure port E, until reaching a pressure drop of 1 mbar (10 mm of W.G.). Slowly increase the adjustment value of the air pressure switch until to have the burner lockout. Remove the obstruction from the air intake, screw on the cover C and start the burner by pressing the control box rearm button. I M L B N D G F H E Note: The pressure measured at pressure port E must be within the limits of the pressure switch working range. If not, loose the locking nut of screw F and gradually turn the same: clockwise to reduce the pressure; counterclockwise to increase. At the end tighten the locking nut. LANDIS & STAEFA SQN A2700 AIR DAMPER MOTOR Remove cover to gain access to the adjusting cams.the cams are to be adjusted through the suitable key provided for. Description: I II III V Limit switch for air damper "High Flame" position adjustment (Max. power) Limit switch for the air damper position at burner's shut down Limit switch for air damper "Low Flame" position adjustment (Min. power) Limit switch for 2nd stage's solenoid valve opening release NOTE : Cam V (to allow the 2nd stage's solenoid valve opening) must be adjusted to an intermediate position between the Low and High Flame ones (to an angle approximately 5 greater than the low flame position). MANUAL RELEASE SWITCH pag.5

6 LB1045 BLU / P AB ( mbar) AIR AND GAS SETTING Air setting must be carried out on servomotor cams asspecified at "Landis & Staefa SQN30.151A2700" section. To adjust gas setting in high fire position operate on gas valve as specified at page 7. To adjust gas setting in Low fire position loosen srew "A", rotate rod "B" in order to achieve the desired flow rate and lock again screw "A". Remember to check again burner combustion in high fire. A B pag.6

7 LB1045 BLU / P AB ( mbar) ADJUSTMENT OF GAS SOLENOID VALVES The ignition flow rate is carefully adjusted. during test phase to 1/3 of the maximum flow rate (according to specifications). Operations for eventual further adjustment must be carried out by skilled personnel authorized by ECOFLAM DUNGS MVDLE To adjustment gas output, loosen the screw R and turn the knob P as required. To reduce output, turn knob clockwise, to increase it turn knob counterclockwise. Tighten the screw R. For fast opening adjustment, remove the cap T and insert it in the pin Q with its groove up. To reduce firing output screw it up, to increase, unscrew it. DUNGS MVD To adjustment gas output, take out the cap L and loose the nut F.Adjust the screw E with a screwdriver. To reduce output turn counter clockwise, to increase it turn clockwise. Tighten the nut F. COMBUSTION ADJUSTMENT WARNING: In order to have a correct combustion and thermal output adjustments, these must be carried out together with a combustion analysis, to be executed through suitable devices, taking care that the values are the correct ones and are in accordance with the local safety regulations. The adjustments must be carried out by qualified and skilled technicians authorised by Ecoflam S.p.A. 7 MULTIBLOC MBDLE T 2 Q P 1 3 R Pressure governor adjustment 2 Fast opening hydraulic brake's adjustment 3 Flow rate adjustment (Low flame flow rate adjustment for AB version) 4 High flame flow rate adjustment 5 Inlet pressure port 6 Pressure governor membrane's bleed 7 Minimum presure switch adjustment (VPS 504) 8 Pressure port after gas filter 9 Pressure port after pressure governor. During leakage control test, is used to measure test pressure (~150 mbar). When burner is running, it is used to measure governor's outlet pressure. 10 Working lamp (yellow) 11 Leakage control device rearm button (red) ADJUSTMENT OF PRESSURE GOVERNOR The adjustment procedure is the same for both singlestage (MBDLE) and twostage (MDZRDLE) versions. Check that gas pipe pressure is not higher than the maximum one specified for the governor, then operate through a screw driver fitted into the suitable seat as shown in the figure. Adjustments must be made with the burner running, in function of the working pressure and needs of each installation. The working fields are as follows: inlet pressure range mbar; outlet pressure range 3,6 20 mbar. Between the minimum and maximum outlet pressure there are approx. 60 adjusting screw's turns. The governor is adjusted to an intermediate position during the tests. ADJUSTMENT OF GAS FLOW RATE FOR SINGLESTAGE VERSION (MBDLE) To adjust the gas flow rate, loosen screw R and turn the regulator; to the right (screwing) to reduce; to the left (unscrewing) to increase. At the end tighten screw R. ADJUSTMENT OF GAS FLOW RATE FOR TWOSTAGE VERSION (MBZRDLE) pag.7

8 LB1045 BLU / P AB ( mbar) Low flame: Loosen screw R and turn regulator P. To the right (screwing) to reduce flow rate; to the left (unscrewing) to increase. At the end tighten screw R. High flame: loosen screw R and turn regulator P. To the right (screwing) to reduce flow rate; to the left (unscrewing) to increase. At the end tighten screw R. ADJUSTMENT OF FAST OPENING'S HYDRAULIC BRAKE The adjustment procedure is the same for both singlestage (MBDLE) and twostage (MDZRDLE) versions. To adjust the fast opening's hydraulic brake, unscrew cover T and through its upper side turn pin Q. Screw to reduce the opening speed; unscrew to increase. Screw cover T after regulation. DUNGS DMVDLE To adjustment gas output, loosen the screw R and turn the knob P as required. To reduce output, turn knob clockwise, to increase it turn knob counterclockwise. Tighten the screw R. For fast opening adjustment, remove the cap T and insert it in the pin Q with its groove up. To reduce firing output screw it up, to increase, unscrew it. T + Q P R Q R LEAKAGE CONTROL DEVICE VPS 504 (OPTIONAL) When the thermostats are closed, the gas leakage control device checks the valve seals by pressurizing the circuit between the two gas valves. When test pressure is reached the device remains in standby for about 25 seconds. At the end of the test the yellow pilot light on the control device lights up and the burner is enabled to carry out the startup cycle. If the seal on one of the valves is faulty and this causes a drop in test pressure, the device puts the system into the safety condition and the red pilot right on the device lights up. The CALCULATING THE BURflame control device starts the burner fan to carry out prewashing NER CAPACITY of the combustion chamber,checking fan air pressure via the air To calculate the burner's capacity in pressure switch. After preventilation the ignition transformer starts kw, proceed as follows: Check the gas operating, generating a spark between the electrodes and simultaneously flow rate (in liters) on the counter and the gas valves open (safety gas valve VS and first stage ope rating valve VL). If the flame does not ignite or goes out, total safety is ensured by an ionization detection probe. The safety time the time of the reading in seconds. Proceed with the calculation using the following formula: limit in the event of no flame is less than 2 seconds at startup and less than 1 during operation. In the event of no gas being supplied or of a considerable drop in pressure the minimum gas pressure e sec x f = kw switch interrupts burner operation. About 20/30 seconds after e = Litres gas ignition the flame control device commands operation of the sec = Time in second second stage via the gas valve and air servocontrol, thus taking the G20 = f 34,02 burner to maximum power. G30 = 116 pag.8 G31 = 88

9 LB1045 BLU / P AB ( mbar) SETTING THE FIRING HEAD The firing head position adjustment is made in order to obtain the best combustion efficiency. When used with minimum outputs the firing head is adjusted in rear position. With high output, the firing head is adjusted in forward position. Adjustment: Loosen screw A through a suitable Allen key. By a screwdriver act on the hex. head screw B until is reached the desired position Tighten screw A + A REMOVING THE BLAST TUBE B + POSITION OF ELECTRODES 8 mm 2,5 mm " " 1,5 mm IONIZATION CURRENT Elettrodo di rivelazione Ionization probe min. min. 33µAA 1 Elettrodo di accensione Ignition electrode LANDIS LGB 22 To the flame probe Mi Microammeter scale 50µA The minimum current necessary to operate the controlbox is 3 µa (Landis). When the measurement of the current is required it is necessary to disconnect the lead to the probe and insert in its place a microammeter for direct current (see fig. under). DESCRIPTION OF THE CONTROL PANEL OF THE BURNER 7 I fuse 2 termal lockout lamp st. stage working lamp 2 nd. stage working lamp 5 highlow flame switch 6 main switch I / O 7 reset key pag.9

10 LB1045 BLU / P AB ( mbar) MAINTENANCE YEARLY INSPECTION Periodic inspection of the burner (combustion head, electrodes, etc.) must be carried out by authorised personnel once or twice a year, depending of use. Before carrying out maintenance inspection on the burner, it is advisable to check its general condition and carry out the following operations: Disconnect the burner from the power supply (remove the plug). Close the gas cock. Remove the burner cover, clean the fan and air intake. Clean the combustion head and check the position of the electrodes. Reassemble the parts. Check the seal on the gas pipe fittings. Check the flue. Restart the burner. Check the combustion parameters (CO 2 = 9.5 to 9.8),(O = less than 75 ppm). BEFORE EACH INTERVENTION CHECK: That the system is supplied with power and the burner connected. That the gas pressure is correct and the gas cock open. That the control systems are correctly connected. If all these conditions are present, start the burner by pressing the release button. Check the burner cycle. THE BURNER WILL NOT START: Check the switch, thermostats, motor, gas pressure. THE BURNER PREVENTILATES AND LOCKS AT THE END OF THE CYCLE: Check the air pressure and fan. Check the air pressure switch. THE BURNER PREVENTILATES AND WILL NOT IGNITE: Check the assembly and position of electrodes. Check the ignition cable. Check the ignition transformer. Check the safety devices. THE BURNER STARTS UP AND LOCKS AFTER THE SAFETY TIME LIMIT: Check that the phase and neutral wires are correctly connected. Check the gas electrovalves. Check the position of the detection electrode and its connection. Check the detection electrode. Check the safety devices. THE BURNER STARTS UP AND LOCKS AFTER RUNNING FOR A FEW MINUTES: Check the pressure regulator and the gas filter. Check the gas pressure with an ammeter. Check the detection value (min 3 µa). pag.10

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12 LB1045 BLU / P AB ( mbar) N DESCRIPTION 1 AIR PRESSURE SWITCH 2 GAS PRESSURE SWITCH 3 AIR INTAKE SET 4 COVER 5 GLASS 6 PEED WINDOM FRAME 7 MOTOR 8 FAN 9 AIR CONVEYOR 10 FAN SCOOP 11 AIR INTAKE 12 CONTROL BOX BASE 13 CONTROL BOX 14 IGNITION TRANSFORMER 15 REMOTE CONTROL SWITCH 16 MOTOR THERMAL RELAY 17 MAIN SWITCH 18 HIGHLOW FLAME SWITCH 19 LAMP 20 FUSE SUPPORT 21 IGNITION CABLE 22 IGNITION CABLE 23 IONIZATION PROBE 24 IGNITION ELECTRODE 25 AIR INTAKE PIPE 26 PIPE 27 ROD 28 FIRING HEAD 29 FRONT DISC 30 FRONT PIPE 31 INNER ASSEMBLY 32 BLAST TUBE 33 GASKET ISOMART 34 ANTIJAMMING LEAD 35 AIR DAMPER MOTOR 36 LEAKAGE CONTROL (OPTIONAL) 37 GOVERNOR (OPTIONAL) 38 SILENCER 39 SOCKET WIELAND 40 PLUG WIELAND 41 GAS VALVE 42 COIL Natural gas 30 mbar (Multibloc) DUNGS LGW10 A2P DUNGS GW50 A W 280 X 140 LANDIS LANDIS LGB 22 8/20 LANDIS SQN A2700 VPS 504 FSDC 80 3" 6 POLES 6 POLES DUNGS DMVDLE " 1/2 DUNGS pag.12 BLU PAB code Q1 20 Q1 07/1 GRPA100 BFC09204/038 BFC02004 BFC02006 M146/017 BFV10301/001 BFC08252/201 BFC08056/001 BFC04154/038 A402 A130/1 T106/5 R617/1 R513/3 R1020 R1020/1 E1510 E802/2 E1102/21 E1102/27 BFE01403/1 BFE01403/2 BFE01057/2 BFE01057/3 BFS02208/201 BFT14017/101 BFT14017/201 BFA08022/101 BFA08022/201 BFT14018/001 BFD03021 BFT12112/1 BFB07024/103 BFB07024/203 BFG04006 S132/4 M212/3 V185 S512/7 GRSIL03 E226/1 E226 V194/3

13 LB1045 BLU / P AB ( mbar) N DESCRIPTION AIR PRESSURE SWITCH GAS PRESSURE SWITCH AIR INTAKE SET COVER GLASS PEED WINDOM FRAME MOTOR FAN AIR CONVEYOR 10 FAN SCOOP 11 AIR INTAKE 12 CONTROL BOX BASE 13 CONTROL BOX 14 IGNITION TRANSFORMER 15 REMOTE CONTROL SWITCH 16 MOTOR THERMAL RELAY 17 MAIN SWITCH 18 HIGHLOW FLAME SWITCH 19 LAMP 20 FUSE SUPPORT 21 IONIZATION CABLE 22 IGNITION CABLE 23 IONIZATION PROBE 24 IGNITION ELECTRODE 25 AIR INTAKE PIPE 26 PIPE 27 ROD 28 FIRING HEAD 29 FRONT DISC 30 FRONT PIPE 31 INNER ASSEMBLY 32 BLAST TUBE 33 GASKET ISOMART 34 ANTIJAMMING LEAD 35 AIR DAMPER MOTOR 36 LEAKAGE CONTROL (OPTIONAL) 37 GOVERNOR (OPTIONAL) 38 SILENCER 39 SOCKET WIELAND 40 PLUG WIELAND 41 GAS VALVE 42 COIL 43 GAS VALVE 44 COIL DUNGS LGW10 A2P DUNGS GW50 A W 4000 W 280 x 140 LANDIS LANDIS LGB 22 COFI 820 PM Lovato RF A LANDIS SQN A2700 VPS 504 FSDC 65 2" 1/2 6 POLES 6 POLES DUNGS MVD " DUNGS DUNGS MVDLE 220 2" DUNGS BLU PAB 50 mbar code Q1 20 Q1 07 GRPA100 BFC09204/038 BFC02004 BFC02006 M146/017 BFV10301/001 BFC08252/201 BFC04154/038 A402 A130/1 T106/5 R617/1 R513/3 R1020 R1020/1 E1510 E802/2 E1102/21 E1102/27 BFE01403/1 BFE01403/2 BFE01057/2 BFE01057/3 BFS02208/201 BFT14017/101 BFT14017/201 BFA08022/101 BFA08022/201 BFT14018/001 BFD03021 BFT12112/1 BFB07025/103 BFB07025/203 BFG04006 S132/4 M212/3 V185 S512/6 E226/1 E226 V119 V214 V120 V214 BLU PAB 50 mbar code Q1 20 Q1 07 GRPA100 BFC09204/038 BFC02004 BFC02006 M127/017 BFV10301/001 BFC08252/201 BFC08056/001 BFC04154/038 A402 A130/1 T106/5 R617/1 R513/3 R1020 R1020/1 E1510 E802/2 E1102/21 E1102/27 BFE01403/1 BFE01403/2 BFE01057/2 BFE01057/3 BFS02208/201 BFT14017/101 BFT14017/201 BFA08022/101 BFA08022/201 BFT14018/001 BFD03021 BFT12112/1 BFB07024/103 BFB07024/203 BFG04006 S132/4 M212/3 V185 S512/6 GRSIL03 E226/1 E226 V119 V214 V120 V214 pag.13

14 LB1045 BLU / P AB ( mbar) N DESCRIPTION AIR PRESSURE SWITCH GAS PRESSURE SWITCH AIR INTAKE SET COVER GLASS PEED WINDOM FRAME MOTOR FAN AIR CONVEYOR 10 FAN SCOOP 11 AIR INTAKE 12 CONTROL BOX BASE 13 CONTROL BOX 14 IGNITION TRANSFORMER 15 REMOTE CONTROL SWITCH 16 MOTOR THERMAL RELAY 17 MAIN SWITCH 18 HIGHLOW FLAME SWITCH 19 LAMP 20 FUSE SUPPORT 21 IONIZATION CABLE 22 IGNITION CABLE 23 IONIZATION PROBE 24 IGNITION ELECTRODE 25 AIR INTAKE PIPE 26 PIPE 27 ROD 28 FIRING HEAD 29 FRONT DISC 30 FRONT PIPE 31 INNER ASSEMBLY 32 BLAST TUBE 33 GASKET ISOMART 34 ANTIJAMMING LEAD DUNGS LGW10 A2P DUNGS GW50 A W 4000 W 280 x 140 LANDIS LANDIS LGB 22 COFI 820 PM Lovato RF A 35 AIR DAMPER LANDIS SQN A2700 MOTOR 36 LEAKAGE CONTROL (OPTIONAL) VPS GOVERNOR (OPTIONAL) FSDC 65 2" 1/2 38 SILENCER 39 SOCKET WIELAND 6 POLES 40 PLUG WIELAND 6 POLES 41 GAS VALVE 42 COIL 43 GAS VALVE 44 COIL DUNGS MBDLE 420 DUNGS DUNGS pag.14 BLU PAB 300 mbar code Q1 20 Q1 07 GRPA100 BFC09204/038 BFC02004 BFC02006 M146/017 BFV10301/001 BFC08252/201 BFC04154/038 A402 A130/1 T106/5 R617/1 R513/3 R1020 R1020/1 E1510 E802/2 E1102/21 E1102/27 BFE01403/1 BFE01403/2 BFE01057/2 BFE01057/3 BFS02208/201 BFT14017/101 BFT14017/201 BFA08022/101 BFA08022/201 BFT14018/001 BFD03021 BFT12112/1 BFB07025/103 BFB07025/203 BFG04006 S132/4 M212/3 V185 S512/6 E226/1 E226 BLU PAB 300 mbar code Q1 20 Q1 07 GRPA100 BFC09204/038 BFC02004 BFC02006 M127/017 BFV10301/001 BFC08252/201 BFC08056/001 BFC04154/038 A402 A130/1 T106/5 R617/1 R513/3 R1020 R1020/1 E1510 E802/2 E1102/21 E1102/27 BFE01403/1 BFE01403/2 BFE01057/2 BFE01057/3 BFS02208/201 BFT14017/101 BFT14017/201 BFA08022/101 BFA08022/201 BFT14018/001 BFD03021 BFT12112/1 BFB07024/103 BFB07024/203 BFG04006 S132/4 M212/3 V185 S512/6 GRSIL03 E226/1 E226 V162/2

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21 NOTE :

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24 ECOFLAM S.p.A. reserves the right to make any adjustments, without prior notice, which it considers necessary or useful to its products, without affecting their main features. Ecoflam S.p.A. via Roma, RESANA (TV) Italy tel. 0423/ r.a. telefax (Italy Export , ).