Unigas P91A Manual Of Installation - Use - Maintenance Download Page 82

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Summary of Contents for P91A

Page 1: ...M039139CG Rev 7 05 2021 BURNERS BRUCIATORI BRULERS BRENNER QUEMADORES Gas burners Progressive Fully modulating MANUAL OF INSTALLATION USE MAINTENANCE P91A P92A P93A P512A P515A P520A...

Page 2: ...e employed exclusively for the use for which it was designed Before connecting the burner make sure that the unit rating is the same as delivery mains electricity gas oil or other fuel Observe caution...

Page 3: ...gaseous fuels 2014 35 UE Low Tension Directive 2014 30 UE Electromagnetic compatibility Directive 2006 42 EC Machinery Directive Harmonized standards UNI EN 676 Automatic forced draught burners for ga...

Page 4: ...s oil and solid fuel burning appliances having electrical connections UNI EN ISO 12100 2010 Safety of machinery General principles for design Risk assessment and risk reduction National Standard UNI 7...

Page 5: ...The combustion head positioning determines the burner s output The combustion head determines the energetic quality and the geometry of the flame Fuel and comburent are routed into separated ways as...

Page 6: ...V SI MT SK BG LT RO TR CH I2E LU PL I2E R B BE I2EK NL I2ELL DE I2Er FR Only for I2EK the appliance was configured for the appliance category K I2K and is suitable for the use of G and G distribution...

Page 7: ...R TYPE P91A L P92A L P93A L Output min max kW 480 2670 480 3050 550 4100 Fuel L LPG Category I3B P Gas rate LPG min max Stm3 h 17 9 100 17 9 114 20 153 Gas pressure mbar see Note 2 Power supply tripha...

Page 8: ...12A L P515A L P520A L P525A L 50 P525A L xx Output min max kW 600 4500 770 5200 1000 6400 2000 6700 2000 8000 Fuel L LPG Category I3B P Gas rate LPG min max Stm3 h 22 167 28 194 37 238 74 250 74 300 P...

Page 9: ...295 447 360 592 M12 417 280 310 295 672 148 524 824 405 777 228 185 P92A 50 1408 242 490 419 918 422 1283 852 431 269 299 329 360 466 M12 417 280 310 295 522 148 374 624 216 651 228 185 65 1408 242 4...

Page 10: ...021 455 1450 959 491 380 420 354 460 498 M14 552 390 390 604 160 444 750 344 733 312 235 100 1541 332 520 511 1021 455 1540 1049 491 380 420 392 460 498 M14 552 390 390 684 160 524 824 405 733 312 235...

Page 11: ...ailable gas pressure value upstream the burner s gas valve Then subtract the backpressure The result is called pgas Draw a vertical line matching the furnace input value 600kW in the example quoted on...

Page 12: ...s set in order to find a compromise between the burner output and the generator specifications that is why the minimum output may be different from the Performance curve minimum BACK PRESSURE IN COMBU...

Page 13: ...0A M Stm3 h GAS PRESSURE mbar P525A M Rp2 Stm3 h P525A M DN65 80 100 Stm3 h ATTENTION the gas rate value is quoted on the x axis the related network pressure is quoted on the y axis pressure value in...

Page 14: ...h GAS PRESSURE mbar P520AL Stm3 h 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...

Page 15: ...the values o pressure in combustion 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 measu...

Page 16: ...100 120 140 160 180 200 220 240 260 280 300 0 5 10 15 20 25 30 35 40 45 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 0 5 10 15 20 25 30 35 40 45 50 50 75 100 125 150 175 200 225 250 27...

Page 17: ...m3 h P93A L Stm3 h Gas pressure in combustion head P512A L Stm3 h GAS PRESSURE mbar P520A L Stm3 h 0 2 4 6 8 10 12 14 16 18 20 22 24 26 10 20 30 40 50 60 70 80 90 100 110 0 10 20 30 40 50 60 70 10 20...

Page 18: ...ns must be carried out with appropriate resources and qualified personnel ATTENTION Use intact and correctly dimensioned hoisting equipment conforms to the local regulations and health and safety regu...

Page 19: ...act 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 necessa...

Page 20: ...gas pressure governor gas leakage pressure switch PGCP Legend 1 Filter 6 Butterfly valve 2 Pressure switch PGMIN 7 Pressure transducer 3 Safety valve with built in gas governor 8 Main burner 4 Proving...

Page 21: ...y tightened To mount the gas train proceed as follows NOTE the bellows unit the manual cutoff valve and the gaskets are not part of the standard supply WARNING before executing the connections to the...

Page 22: ...UCIATORE 185 501939 PGMAX PGCP PGMI EV1 EV2 S EV2 EV1 PGMAX PGMIN VD R PGCP VD V VD V VD R PS PS pressure sensor Gas filter Example of gas train MBE A A C B B C 1 Mount flange into pipe systems Use ap...

Page 23: ...pressure switches set to 20 of the setpoint 2 Mounting on pipe Sensor position 5x DN according to MBE Pipe fitting with female thread size mount sensor with seal observe torque 3 The pressure sensor i...

Page 24: ...ilter with gas flow parallel to the floor in order to prevent dust fall on the safety valve during maintenance operation SA SA TP D BS SKP1 SKP2 SIEMENS VGD Mounting positions T VR Performance range m...

Page 25: ...r a preset time test time td1 The pressure switch PGCP has not to detect a rise of pressure Test space filling EV1 opens and keep this position for a preset time td3 in order to fill the test space Te...

Page 26: ...RC circuit Siemens between the terminal 2 terminal X3 04 4 in case of LMV2x LMV3x LMV5x LME7x of the base and the earth terminal RC466890660 For LMV5 control box please refer to the clabeling recomme...

Page 27: ...E 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 LOC...

Page 28: ...gnition with gas position and as this is achieved the ignition transformer is energised LED B4 is on the gas valves open Few seconds after the valves opening the transformer is de energised and lamp B...

Page 29: ...reases it Do not use a screwdriver on the screw VR Note the screw VSB must be removed only in case of replacemente of the coil 3 Before starting the burner up drive the high flame actuator microswitch...

Page 30: ...tuator moves progressively towards the low flame position 17 move the gas low flame microswitch to the minimum to move the actuator towards the low flame until the two bearings find the adjusting scre...

Page 31: ...ents do not exceed a value that creates a hazardous condition to the burner Adjusting output pressure for positive pressure systems requires PS 10 40 or PS 50 200 Outlet pressure MIN 10 25 50 75 MAX P...

Page 32: ...as 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 th...

Page 33: ...are fully opened Center head holes gas flow regulation LPG burners To adjust the gas flow partially close the holes as follows 1 loosen the three V screws that fix the adjusting plate D 2 insert a sc...

Page 34: ...MBEMultiBloc VD Mounting position to push 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 rot...

Page 35: ...scrape it off by a scratchbrush Note to replace the combustion head reverse the procedure described above having care to place correctly the O ring OR between burner and gas manifold WARNING ALL OPERA...

Page 36: ...screw of th eignition electrodes support E 7 remove the electrodes and replace them paying attention to the measures showed in figure F G 8 reassemble the burner by fllowing the procedure in the reve...

Page 37: ...he detection electrode or detector the electrical contacts and if necessary replace the electrode or the detector Checking the detection current with photocell LME L P G To check the detection signal...

Page 38: ...ual 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 st...

Page 39: ...20 2190171 2190171 2190171 2190171 2190171 2190171 2190171 GAS VALVE GROUP DN65 Siemens VGD40 2190172 2190172 2190172 2190172 2190172 2190172 2190172 GAS VALVE GROUP DN80 Siemens VGD40 2190169 2190169...

Page 40: ...ON ELECTRODE 5 5 7 SKP ACTUATOR 14 2 NET 3 2 2 ADJUSTING BUSH 5 5 8 GAS PROVING SYSTEM 14 3 AIR INTAKE DAMPER 3 2 3 FALSE LANCE 5 5 9 BRACKET 14 4 AIR INTAKE DAMPER 3 3 IONISATION PROBE 6 AIR INLET CO...

Page 41: ...B C D E 10 12 3 12 1 12 2 3 4 3 3 1 8 3 1 3 6 7 7 1 5 5 7 5 5 1 5 5 6 5 5 5 5 5 8 5 5 4 5 5 3 2 3 2 1 2 2 1 5 2 4 2 5 3 5 4 5 5 9 5 1 5 5 2 11 4 1 6 15 3 2 3 3 2 1 14 5 5 4 3 2 2 9 13 14 2 14 3 14 6 1...

Page 42: ...T 44 SCREW 7 IGNITION ELECTRODE 26 LOUVER SHAFT 45 INSPECTION GLASS 8 ADJUSTING BUSH 27 GAS FILTER 46 THROTTLE 9 FALSE LANCE 28 GASKET 47 THROTTLE SHAFT 10 DETECTION ELECTRODE 29 REVERSIBLE PIPE 48 BU...

Page 43: ...C I B UNIGAS M039139CG 43 A A B C C D D E E A B C D E 1 40 4 13 38 39 10 45 49 42 11 9 7 2 3 15 12 8 44 50 14 51 37 43 23 25 26 22 19 20 17 18 16 52 41 24 47 28 46 48 21 27 30 29 35 31 32 33 34 36 6 5...

Page 44: ...OR BURNER STAND BY LSPG INDICATOR LIGHT FOR LEAKAGE OF VALVES LT INDICATOR LIGHT FOR FAN OVERLOAD TRIPPED LTA IGNITION TRANSFORMER INDICATOR LIGHT MV FAN MOTOR PA COMBUSTION AIR PRESSURE SWITCH PGMAX...

Page 45: ...ssure switch damaged or bad links Check air pressure switch functions and links Burner control damaged Replace burner control BURNER LOCKS OUT WITHOUT ANY GAS FLOW Gas valves don t open Check voltage...

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Page 56: ...a 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 an...

Page 57: ...LME73 000Ax PME73 831AxBC LME73 831AxBC Service instruction manual M12921CB Rel 1 2 02 2016...

Page 58: ...reset button info button 3 multicolor signal lamp LED for operations and fault notifications 3 x 7 segment display for service fault and operating state information Interface for program module no fu...

Page 59: ...ress and simultaneously No adoption of value One menu level up Keep depressed for 1second for backup restore function First startup when PME is supplied or PME replacement First startup 1 insert a new...

Page 60: ...y time and load controller LR release P50 Green P50 Green 2nd safety time TSA2 P54 Green P54 Green P259 01 Actuator opens in low fire P54 Green P54 Green P260 Actuator closes in low fire oP1 Green oP1...

Page 61: ...L2 display and operating unit Visual diagnostics In normal operation the different operating states are indicated in the form of color codes according to the color code table given below Color code ta...

Page 62: ...Program sequence Version 1 Ignition load low fire Prepurging in high fire Parameter 515 1 condition parameter 259 01 0 seconds 6...

Page 63: ...Program sequence Version 2 Ignition load low fire Prepurging in high fire Parameter 515 1 condition parameter 259 01 0 seconds 7...

Page 64: ...g after mains ON lockout Part 2 Prepurge time t1 with extraneous light test 36 Actuator closes in ignition load 38 Preignition t3 40 Postignition time t3n parameter 257 0 3 seconds 42 Flame detection...

Page 65: ...ection Misadjustment 7 x blinks Too many losses of flame during operation limitation of repetitions Faulty or soiled flame detector Faulty or soiled fuel valves Poor adjustment of burner 8 x blinks Fr...

Page 66: ...54 approx 12 Operation Intensity Parameter 954 approx 13 Operating voltage AC 280 V 15 Mains frequency 50 60 Hz 6 Required detector current Min 70 A Possible detector current Operation Max 700 A Perm...

Page 67: ...t not exceed a certain level Step 3 td3 Filling of test space Gas valve on the mains side opens to fill the test space Step 4 td2 Test gas pressure When the gas valve has closed the gas pressure in th...

Page 68: ...is possible to access the Service mode Info and Enter keys Used for Info and Service menues Used as Enter key in the setting modes Used as Reset key in the burner operation mode Used to enter a lower...

Page 69: ...motor energised Ignition transformers energised Parameter setting mode Info mode Service mode Closing actuator Unit measure Opening actuator While pushing the button together with whatever else butto...

Page 70: ...time ignition transformer OFF flame check Ph44 Interval End of safety time and fuel valve 1 V1 ON Ph50 2nd safety time TSA2 Ph54 P259 01 Actuator opens in low fire Ph54 P260 Actuator closes in low fi...

Page 71: ...r pressure switch wel ded in working position Time out air pressure switch LP Air pressure switch LP is welded in working position Loc 6 Fault of actuator Actuator faulty or blocked Faulty connection...

Page 72: ...16 Entering the Parameter levels y means of a proper use of the keys it is possible to enter the various level parameters as shown in the following flow chart...

Page 73: ...rom level writing from level 100 General 102 Identification date Read only Info 103 Identification number Read only 0 9999 1 Info 113 Burner identification Read only x xxxxxxxx 1 Info 164 Numbers of s...

Page 74: ...dit Value range Resolution Factory setting Password level Password level number Min Max reading from level writing from level 700 Error history 701 Current error Read only Service 00 Error code 2 255...

Page 75: ...19 900 Process data 936 Normalized speed Read only 0 100 0 01 Service 951 Mains voltage Read only 0 V LME73 000A1 175 V 1 V Service LME73 000A2 350 V 954 Flame intensity Read only 0 100 1 Service...

Page 76: ...PME73 831AxBC LME73 831AxBC Edit Value range Resolution Factory setting Password level Password level number Min Max reading from level writing from level 0 Internal parameter 41 Heating engineers pa...

Page 77: ...0 290 SO OEM 254 Response time detector error Edit 0 1 1 0 SO OEM 0 1 s 1 3 s 257 Gas Postignition time t3n 0 3 seconds Edit 0 s 13 23 s 0 147 s 2 205 SO OEM 259 00 Opening time of actuator t11 timeou...

Page 78: ...ASZxx 3x required Edit 0 5 1 0 SO SO 0 3 position step input 1 0 10 V 2 0 135 3 0 20 mA 4 4 20 mA with lockout at I 4 mA 5 4 20 mA WARNING Parameter Num 41 42 60 123 140 242 243 244 245 259 01 Adjusta...

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Page 80: ...Note Specifications and data subject to change Errors and omissions excepted...

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