Unigas PG70 Manual Of Installation - Use - Maintenance Download | Manualshive

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CIB UNIGAS - M039191CA

9

Hydraulic diagrams for light oil supplying circuits

NOTE:

in plants where gravity or ring feed systems are provided, install an automatic interception device (see n. 4).

Fig. 2 - Gravity circuit

Fig. 3 - Ring circuit

Fig. 4 - Suction circuit

Key

1

Manual valve

2

Light oil filter

3

Light oil feeding pump

4

One way valve

5

Flexible hoses

6

Relief valve

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Summary of Contents for PG70

Page 1: ...MANUAL OF INSTALLATION USE MAINTENANCE PG60 PG70 PG81 M039191CA Rel 0 1 09 2011 BURNERS BRUCIATORI BRULERS BRENNER QUEMADORES Progressive Fully modulating Light oil burners...

Page 2: ...otor rotation 16 ADJUSTMENTS 17 Adjustments brief description 17 Adjustment procedure 17 Adjustment by the Berger STM30 actuator 18 Adjustment by the Siemens SQL33 servocontrol 21 Fully modulating bur...

Page 3: ...ins electricity gas oil or other fuel z Observe caution with hot burner components These are usually near to the flame and the fuel pre heating system they become hot during the unit operation and wil...

Page 4: ...f toxic or explosive mixtures DIRECTIVES AND STANDARDS Gas burners European directives Directive 90 396 CEE Gas Appliances Directive 2006 95 EC on low voltage Directive 2004 108 CEE on electromagnetic...

Page 5: ...of the combustion head determines the burner output The air comburent and fuel light oil are for ced into the combustion chamber as to let the flame light up How to interpret the burner s Performance...

Page 6: ...ient temperature at 15 C BURNERS PG60 PG70 PG81 Output min max kW 151 791 291 1047 264 1900 Light oil rate min max kg h 13 67 25 88 22 160 Fuel Light oil Viscosity 1 3 E 20 C Power supply 400V 3N 50Hz...

Page 7: ...BL C CL D E F G K H P M N PG60 760 244 442 1004 1202 270 300 570 153 240 182 190 M10 269 PG70 725 310 460 1035 1185 355 420 775 198 300 228 233 M10 330 PG81 825 340 490 1165 1315 355 420 775 234 300...

Page 8: ...ccording to the procedure described on paragraph Handling the burner 3 place the 4 stud bolts 5 on the hole of the boiler s door according to the burner s drilling plate described on paragraph Overall...

Page 9: ...in plants where gravity or ring feed systems are provided install an automatic interception device see n 4 Fig 2 Gravity circuit Fig 3 Ring circuit Fig 4 Suction circuit Key 1 Manual valve 2 Light oil...

Page 10: ...nd fuel passing through the pump Burners are factory set for double pipe systems They can be suited for single pipe system recommended in the case of gravity feed as decribed before To change from a 1...

Page 11: ...for a considerable length of time for example when there is a long suction line to bleed To avoid damages inject some lubrication oil into the vacuum inlet z Care must be taken when installing the pum...

Page 12: ...umpSuntec AJ6 Viscosity 2 8 75 cSt Oil temperature 60 C max Inlet maximum pressure 2 bar Inlet minimum pressure 0 45 bar to avoid gasing Rated speed 3600 rpm max Suntec J6 J7 Oil viscosity 2 8 200 cSt...

Page 13: ...exible hoses on the pump being careful to avoid exchanging the inlet and return lines see the arrows marked on the pump that show the inlet and the return see prevoius paragraph Suntec TA Oil viscosit...

Page 14: ...hamber The part of fuel that is not burnt goes back to the tank through the return circuit The fuel amount to be burnt is adjusted by means of the burner actuator according to the adjustments set see...

Page 15: ...w rate BERGONZO nozzle is provided set the return pressure at 11bar supply at 20bar on the delivery to get a 220kg h flow rate If the return pressure needed is 5bar instead act on the V adjusting scre...

Page 16: ...se 230 V supply it is necessary to modify the electrical connections inside the terminal box of the electric motor and replace the thermal cutout relay RESPECT THE BASIC SAFETY RULES MAKE SURE OF THE...

Page 17: ...he chimney Adjustment procedure To change the burner setting during the testing in the plant follow the next procedure according to the actuator model provided mod Berger STM30 or mod Siemens SQL z PG...

Page 18: ...afely the high flame stage 4 Turn the burner on by means of its main switch A if the burner locks LED B on in the control panel press the RESET button C on the control panel see next picture see chapt...

Page 19: ...ig 15 Fig 16 and act on on the pu mp adjusting screw VR see Fig 14 as to get the nozzle pressure at 20bar Bergonzo nozzles see diagram on Fig 10 Fig 15 Light oil manifold PG60 Fig 16 Combustion head w...

Page 20: ...hange the position of the air damper rods 12 The burner is factory set with the head in its MAX position maximum output PG60 To let the burner operate at a lower output turn clockwise the VRT screw an...

Page 21: ...t the previous step go on this way as to reach the desired low flame point 18 The low flame position must never match the ignition position that is why cam III must be set 20 30 more than the ignition...

Page 22: ...minal no 6 or by setting MAN on the RWF40 modulator or by setting 0 by means of the CMF switch only for fully modulating burners 8 set the actuator on the manual mode MAN by means of the MAN AUTO swit...

Page 23: ...1 when the cam has reached the high flame position 12 To adjust the air flow rate in the high flame stage loose the RA nut and screw VRA as to get the desired air flow rate moving the rod TR towards t...

Page 24: ...turn the adjusting cam SV and set again the actuator to the AUTO mode to lock the adjusting cam 16 act on the V screw that mathces the bearings referring to the adjusting cam position 17 to adjust the...

Page 25: ...w 1 Keep pushed for 5 seconds the EXIT button on the modulator for further details see the burner modulator manual when the LED with the hand symbol lights up press the arrow button driving the actuat...

Page 26: ...THE RESET PUSHBUTTON IF A SECOND SHUT DOWN TAKES PLACE CALL THE TECHNICAL SERVICE WITHOUT TRYING TO RESET FURTHER WARNING DURING NORMAL OPERATION THE PARTS OF THE BURNER NEAREST TO THE GENERATOR COUPL...

Page 27: ...ling lamp for light oil solenoid valve opening E Thermal cutout intervention signalling lamp F High flame operation signalling lamp G Low flame operation signalling lamp H Ignition transformer operati...

Page 28: ...heir ceramic insulators clean adjust and replace if necessary z remove and clean the oil nozzles IMPORTANT do not clean the nozzles using metallic or sharp utensils use only solvents or steam at the e...

Page 29: ...of a vacuum cleaner to scrape off the scale use a metallic brush Note to replace the combustion head reverse the procedure described above Removing the oil gun PG70 PG81 Once the combustion head is r...

Page 30: ...4 Cleaning and replacing the detection photoresistor To clean replace the photoresistor proceed as follows 1 disconnect the system from the electrical power supply 2 shut off the fuel supply 3 remove...

Page 31: ...rrent intensity with flame 45 A Maximum current intensity without flame 5 5 A Maximum possible current intensit with flamey 45 A 100 A 100 A THE BURNER DOESN T START THE BURNER REPEATS PRE PURGE NOISY...

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Page 50: ...2340003 2 FLEXIBLE HOSES L 275 2340091 2340091 1 FLEXIBLE HOSES L 335 3 8 2340087 2340087 1 ADJUSTING CAM FOIL 2440013 2440013 2440013 2 SERVOCONTROL mod SIEMENS 2480009 2480022 2480022 1 SERVOCONTROL...

Page 51: ...operation the burner will initiate lo ck out T he rep etition count is re started each time controlled switching on by R W SB takes place Operation Lock out reset button EK is the key operatin g elem...

Page 52: ...e switch Z Ignition transformer t4 Interval from flame signal to release BV2 TSA Ignition safety time tw Waiting time for oil pre heating B Time of flame establishment C Operating position D Controlle...

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