Unigas PBY70 Manual Of Installation - Use - Maintenance

Double-stage heavy oil burners

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PBY70
Double-stage
Heavy oil Burners
MANUAL OF INSTALLATION - USE - MAINTENANCE
BURNERS - BRUCIATORI - BRULERS - BRENNER - QUEMADORES - ГОРЕЛКИ
M039241CB Rel. 1.0 06/2010

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Summary of Contents for Unigas PBY70

  • Page 1 PBY70 Double-stage Heavy oil Burners MANUAL OF INSTALLATION - USE - MAINTENANCE BURNERS - BRUCIATORI - BRULERS - BRENNER - QUEMADORES - ГОРЕЛКИ M039241CB Rel. 1.0 06/2010...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS WARNINGS ................................3 PART I: INSTALLATION ............................5 Burner model identification ................................5 Technical Specifications ................................. 5 Performance Curves ..................................6 Overall dimensions ..................................7 INSTALLING THE BURNER................................8 Packing ......................................8 Handling the burner ..................................8 Fitting the burner to the boiler .................................
  • Page 3: Warnings

    WARNINGS THIS MANUAL IS SUPPLIED AS AN INTEGRAL AND ESSENTIAL PART OF THE PRODUCT AND MUST BE DELIVERED TO THE USER. INFORMATION INCLUDED IN THIS SECTION ARE DEDICATED BOTH TO THE USER AND TO PERSONNEL FOLLOWING PRO- DUCT INSTALLATION AND MAINTENANCE. THE USER WILL FIND FURTHER INFORMATION ABOUT OPERATING AND USE RESTRICTIONS, IN THE SECOND SECTION OF THIS MANUAL.
  • Page 4 DIRECTIVES AND STANDARDS 3b) FIRING WITH GAS, LIGHT OIL OR OTHER FUELS Gas burners GENERAL European directives:  The burner shall be installed by qualified personnel and in com- - Directive 2009/142/EC - Gas Appliances; pliance with regulations and provisions in force; wrong installation Directive 2006/95/EC on low voltage;...
  • Page 5: Part I: Installation

    C.I.B. UNIGAS - M039241CB PART I: INSTALLATION Burner model identification Burners are identified by burner type and model. Burner model identification is described as follows. Type PBY70 Model (1) BURNER TYPE PBY70  (2) FUEL H - heavy oil , high viscosity 4000cSt (530°E) @ 50°C...
  • Page 6: Performance Curves

    C.I.B. UNIGAS - M039241CB Performance Curves PBY70 1000 1200 1400 To get the input in kcal/h, multiply value in kW by 860. Data are referred to standard conditions: atmospheric pressure at 1013mbar, ambient temperature at 15°C NOTE: The performance curve is a diagram that represents the burner performance in the type approval phase or in the laboratory tests, but does not represent the regulation range of the machine.
  • Page 7: Overall Dimensions

    Overall dimensions (mm) boiler recommended drilling template...
  • Page 8: Installing The Burner

    C.I.B. UNIGAS - M039241CB INSTALLING THE BURNER Packing Burners are despatched in wooden crates whose dimensions are:  1520 mm x 1170 mm x 1130 mm(L x P x H) Packing cases of this kind are affected by humidity and are not suitable for stacking. The fol- lowing are placed in each packing case: ...
  • Page 9 C.I.B. UNIGAS - M039241CB SIDE UP SIDE DOWN 1 Burner flange (upper side indicated) 2 Bracket 3 Pre-heating tank on the burner...
  • Page 10: Electrical Connections

    C.I.B. UNIGAS - M039241CB Electrical connections Respect the basic safety rules. Make sure of the connection to the earthing system. do not reverse the phase and neutral connections. Fit a differential thermal magnet switch adequate for connection to the mains.
  • Page 11: Connecting The Oil Heating Resistors

    C.I.B. UNIGAS - M039241CB Connecting the oil heating resistors 2.4 - 4.5 kW 8 - 12 kW 400 V 230V 400 V 230V Fig. 1 Fig. 2 18 - 24 kW ELECTRIC MOTOR CONNECTION 400 V 230V 400 V 230V Fig.
  • Page 12: Burner Adjustments

    C.I.B. UNIGAS - M039241CB PIPELINE PIPELINE HEAVY OIL VISCOSITY AT 50 °C PRESSURE TEMPERATURE cSt (°E) °C < 50 (7) 1- 2 > 50 (7) < 110 (15) 1- 2 > 110 (15) < 400 (50) 1- 2 > 400 (50) <...
  • Page 13 C.I.B. UNIGAS - M039241CB Viscosity units conversion table Saybolt Cinematics Saybolt Redwood Engler Degrees Seconds Redwood Seconds viscosity Seconds Seconds no.1 (°E) Universal no..2 (Admiralty) Centistokes (cSt) Furol (SSF) (Standard) (SSU) 2.56 1.16 32.1 1.31 36.2 1.58 44.3 5.83 10.3 1.88...
  • Page 14 C.I.B. UNIGAS - M039241CB VISCOSITY vs TEMPERATURE DIAGRAM FOR COMBUSTIBLE OILS 1000 PUMPING LIMIT TEMPERATURE (°C) LIGHT OIL 1,3°E AT 20°C HEAVY OIL 2,4°E AT 50°C HEAVY OIL 4°E AT 50°C HEAVY OIL 7,5°E AT 50°C HEAVY OIL 10°E AT 50°C HEAVY OIL 13°E AT 50°C...
  • Page 15 C.I.B. UNIGAS - M039241CB Indicative diagram showing the oil temperature at burner pump inlet vs. oil viscosity Example: if the oil has a 50°E @ 50°C viscosity, the oil temperature at the pump inlet should be 80°C (see diagram). OIL TEMPERATURE FOR PUMP FEEDING TEMPERATURE (°C)
  • Page 16: Hydraulic Diagrams

    HYDRAULIC DIAGRAMS Fig. 8 - Hydraulic diagram 3ID0024...
  • Page 17 3ID0024 KEYS OIL TRAIN Main tank OIL PUMPING UNIT Manual valve Filter Pump coupled to electrical motor Safety valve One-way valve Manual valve Pressure gauge High pressure switch - PO MAX DAILY TANK Daily tank Heating device Electrical resistor Pressure gauge High pressure switch - PO MAX Low pressure switch - PO MIN Low thermostat - TCN...
  • Page 18 Fig. 9 - Hydraulic diagram 3I2D-01...
  • Page 19 3LMD-01 KEYS OIL TRAIN PILOT GAS TRAIN Filter Pressure governor with filter Pump coupled to an electrical motor Pressure switch - PGP Flexible hose Solenoid valve Manual valve Flexible hose Pressure gauge Pilot burner Pressure governor Pressure governor for L.P.G. tank Manual valve COMBUSTION AIR TRAIN Thermostat - TR...
  • Page 20: Ignitor Burner Assembly

    C.I.B. UNIGAS - M039241CB Pilot burner assembly The connection to the pilot must be done according to the following scheme BURNER MANUFACTURER INSTALLER L.P.G. Fig. 10 Gas valves Gas pressure switch Gas governor with filter Bellows unit Manual cutoff valve...
  • Page 21: Heavy Oil Pumps

    C.I.B. UNIGAS - M039241CB Heavy oil pumps The pump provided with the burner must be installed according to the hydraulic diagram. Cucchi FMG25 pumps Capacity 1500l/h 0.75 Speed 1400 Max Outlet Pressure 10bar Max Inlet Pressure 5bar Min Inlet Pressure -0.4bar For further details see the manifacturer documentation.
  • Page 22: Connecting The Oil Flexible Hoses To The Burner

    C.I.B. UNIGAS - M039241CB Connecting the oil flexible hoses to the pump To connect the flexible oil hoses to the pump, proceed as follows, according to the pump provided: remove the closing nuts A (on the pump inlet) and B (from pump to the burner);...
  • Page 23 C.I.B. UNIGAS - M039241CB Hydraulic connections Cleaning air Fig. 12...
  • Page 24: Adjusting Air And Fuel Rate

    C.I.B. UNIGAS - M039241CB ADJUSTING AIR AND FUEL RATE ATTENTION: before starting the burner up, be sure that the manual cutoff valves are open. Be sure that the mains switch is closed. .ATTENTION: During commissioning operations, do not let the burner operate with insufficient air flow (danger of formation of carbon monoxide);...
  • Page 25: Adjustments - Brief Description

    C.I.B. UNIGAS - M039241CB Set pilot gas pressure switch at 50 mbar. Fig. 14 Adjustments - brief description  Adjust the air and oil flow rates at the maximum output (“high flame”) first, by means of the air damper and the adjusting cam respectively.
  • Page 26 C.I.B. UNIGAS - M039241CB Start the burner up by means of the thermostat series (terminals 3 and 4 - see wiring diagrams) and wait unitl the pre-purge phase comes to end and that burner starts up; drive the burner to high flame stage, by means fo the thermostat TAB (high/low flame thermostat - see Wiring diagrams), as far as fully-modulating burners, see related paragraph.
  • Page 27 C.I.B. UNIGAS - M039241CB Set the ignitor gas pressure switch PG (Fig. 17) at 50 mbar. Fig. 16 - Atomising air pressure switch Fig. 17 - Gas pressure switch Fig. 18 - Atomising air flow rate adjustment 10 The nozzle supply pressure is already factory-set and must not be changed. Only if necessary, adjust the supply pressure as fol- lows (see related paragraph);...
  • Page 28: Calibration Of Air Pressure Switch

    C.I.B. UNIGAS - M039241CB ”MAX” position ”MIN” position Attention! if it is necessary to change the head position, repeat the air and gas adjustments described above. 14 set the TAB thermostat to the low flame position; 15 During low fire operation, oil pressure is about 1 bar (read on oil pressure gauge).
  • Page 29: Part Ii: Operation

    C.I.B. UNIGAS - M039241CB PART II: OPERATION LIMITATIONS OF USE THE BURNER IS AN APPLIANCE DESIGNED AND CONSTRUCTED TO OPERATE ONLY AFTER BEING CORRECTLY CONNEC- TED TO A HEAT GENERATOR (E.G. BOILER, HOT AIR GENERATOR, FURNACE, ETC.), ANY OTHER USE IS TO BE CONSIDE- RED IMPROPER AND THEREFORE DANGEROUS.
  • Page 30 C.I.B. UNIGAS - M039241CB Control panel High flame lamp Low flame lamp Ignition transformer lamp Fan motor thermal cutout lamp Burner lockout lamp Burner stand-by lamp Solenoid valve lamp Atomisation air pressure switch lamp Compressed air solenoid valve lamp Heating resistors safety thermostat lamp...
  • Page 31: Part Iii: Maintenance

    C.I.B. UNIGAS - M039241CB PART III: MAINTENANCE At least once a year carry out the maintenance operations listed below. In the case of seasonal servicing, it is recommended to carry out the maintenance at the end of each heating season; in the case of continuous operation the maintenance is carried out every 6 months.
  • Page 32: Removing The Combustion Head

    C.I.B. UNIGAS - M039241CB filter slots threaded body Fig. 26 - threaded body without bottom cover Fig. 25 - Removing the combustion head  Remove the cover H.  Slide the photoresistor out of its housing.  Unscrew the flexible hoses from the gun (burner side) and remove the whole assembly as shown on Fig. 27.
  • Page 33: Checking The Detection Current

    C.I.B. UNIGAS - M039241CB A= 0 mm (factory set), to change the nozzle position, please contact the Technical Dpt. Fig. 28 To remove the oil gun, proceed as follows: remove the combustion head as described on the prevoius paragraph; after removing the oil gun, unscrew the nozzle and replace it if necessary;...
  • Page 34: Troubleshooting

    C.I.B. UNIGAS - M039241CB TROUBLESHOOTING CAUSES/TROUBLES  MAIN SWITCH OFF  LINE FUSES BLOWN  MAXIMUM THERMOSTAT MALFUNCTION  FAN THERMAL CUTOUT TRIPPED  AUXILIARY FUSE BLOWN   OIL RESISTOR FAULTY   OIL ENABLING THERMOSTAT TRIPPED  ...
  • Page 35: Spare Parts

    C.I.B. UNIGAS - M039241CB SPARE PARTS DESCRIPTION PBY70 CONTROL BOX 2020455 IGNITOR ELECTRODE 2080254 OIL FILTER 2090236 GASKET 2110033 FAN WHEEL 2150038 AIR PRESSURE SWITCH 2160065 COMPRESSED AIR PRESSURE SWITCH - PMM10A 2-10 bar 2160083 GAS PRESSURE SWITCH - DUNGS GW150 A6...
  • Page 36: Burner Exploded View

    BURNER EXPLODED VIEW ITEM DESCRIPTION ITEM DESCRIPTION ITEM DESCRIPTION AIR INLET CONE 13.12 THERMOMETER 18.7 COVER BURNER HOUSING CONNECTOR 18.8 GASKET COVER 15.1 OIL SOLENOID VALVE 19.1 NOZZLE HOLDER GENERATOR GASKET 15.2 AIR PRESSURE SWITCH 19.2 NOZZLE HOLDER ROD PLUG 15.3 ONE-WAY VALVE 19.3...
  • Page 38: Electrical Wiring Diagrams

    ELECTRICAL WIRING DIAGRAMS Electric supply connections must be arranged in order to ensure the burner stops if IRxx switcesh are open. When the three phase power supply is interrupted, the auxiliary (single phase) power supply must be interrupted as well. WARNING: 1 - Power supply 400V 50Hz 3N AC with neutral 2 - Don’t reverse phase with neutral...
  • Page 39: Appendix

    APPENDIX The multicolour «LED» is the key indicating element for both visual diagnosis and interface diagnosis. SIEMENS OIL BURNERS AUTOMATIC CONTROLLER SIEMENS LMO14 - LMO24 - LMO44 The LMO... burner controls are designed for the start-up and supervision of single- or 2-stage forced draught oil burners in intermittent operation. Yellow Yellow-burning flames are supervised with photoresistive detectors Green...
  • Page 40 LMO14 LMO24 - LMO44 A ´ μC control μC1 μC2 t 3n t 3n t 3n 7130a01e/0700 LMO24 - LMO44 7130d03e/ 0700 µC cont r ol µC 1 µC 2 Alarm device kbr... Cable link (required only when no oil pre-heater is used) BV...
  • Page 41 General unit data Mains voltage AC 230 V +10 % / -15 % AC 120 V +10 % / -15 % Mains frequency 50...60 Hz ±6 % External primary fuse (Si) 6.3A (slow) Power consumption 12 VA Mounting orientation optional Weight approx.
  • Page 44 C.I.B. UNIGAS S.p.A. Via 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 without notice. Errors and omissions excepted.

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