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Summary of Contents for Unigas P20
- Page 1 MANUAL OF - INSTALLATION - OPERATION - MAINTENANCE GAS BURNERS TOWN GAS VERSION M03980CA Rev. 00 01/02 Technical Documentation CIB Unigas - Campodarsego (PD) - Italy...
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Page 2: General Introduction
NOTICES 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 PRODUCT INSTALLATION AND MAINTENANCE. THE USER WILL FIND FURTHER INFORMATION ABOUT OPERATING AND USE RESTRICTIONS, IN THE SECOND SEC- TION OF THIS MANUAL. - Page 3 3b) FIRING WITH GAS, GASOIL OR OTHER FUELS GENERAL INSTRUCTIONS DEPENDING ON FUEL USED GENERAL The burner shall be installed by qualified personnel and in 3a) ELECTRICAL CONNECTION compliance with regulations and provisions in force; wrong For safety reasons the unit must be efficiently earthed and installation can cause injuries to people and animals, or installed as required by current safety regulations.
- Page 4 PART I: INSTALLATION TECHNICAL DATA SINGLE STAGE BURNERS BURNERS TYPE/MODEL P20 C-..25 P20 C-..40 P30 C-..40/50 P45 C-..40 Input min. kW max. kW min. kcal/h 68.800 68.800 129.000 206.400 max. kcal/h 197.800 240.800 301.000 447.200 Fuel Town gas Town gas...
- Page 5 DOUBLE STAGE, PROGRESSIVE AND FULLY MODULATING BURNERS BURNERS TYPE/MODEL P20 C-..25 P20 C-..40 P30 C-..40/50 P45 C-..40 Input min. low flame kW min. high flame kW max. kW min. low flame kcal/h 73.100 73.100 55.900 124.700 min. high flame kcal/h 103.200...
- Page 6 BURNER MODEL IDENTIFICATION Burners are identified by burner type and model. Burner model identification is described as follow. Type: P20 Model: BURNER TYPE FUEL C - Town gas OPERATION Available versions TN - Single stage AB - Double stage PR - Progressive...
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Page 7: Performance Curves
PERFORMANCE CURVES P20 C-.TN...25 P30 C-.TN..40 Fig. 5 P20 C-.AB...25 - C-.PR...25 - C-.MD...25 P30 C-.AB...40 - C-.MD...40 - C-.PR...40 Fig. 6 P20 C-.TN...40 P45 C-.TN...xx Fig. 7 P20 C-.AB...40 - C-.PR...40 - C-.MD...40 P45 C-.AB...xx - C-.PR...xx - C-.MD...xx Fig. - Page 8 P50 C-.TN...40 P65 C-.AB...xx - C-.PR...xx - C-.MD...xx Fig. 9 1000 P50 C-.TN...50 - C-.TN...65 Fig. 10 ------ Minimum high flame PART I: INSTALLATION...
- Page 9 PRESSURE - RATE IN COMBUSTION HEAD CURVES Curves are referred to a null pressure in combustion head! The pressure - gas rate curves are referred to the burner in operation with 3% of O , with the combustion head at the maximum opening, servocontrol at the maximum opening and gas butterfly valve fully opened..
- Page 10 Fig. 14 NATURAL GAS FLOW RATE Stm Fig. 15 NATURAL GAS FLOW RATE Stm Fig. 16 NATURAL GAS FLOW RATE Stm WARNING: THESE DIAGRAMS ARE VALID ONLY FOR NATURAL GAS BURNER! PART I: INSTALLATION...
- Page 11 MOUNTINGS AND CONNECTIONS Packing The burners are dispatched in cardboard pakages with dimensions: P20 - P30 98 x 55 x 46 (W x H x D) P45 - P50 118 x 67 x 57 (W x H x D) 127 x 84 x 76 (W x H x D) Packing cases of this kind are affected by humidity and are not suitable for stacking.
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Page 12: Electrical Connections
For a complete key, see on page 28 and page 31. Diagrams for burners WITH printed circuit Burners type P20 - P30 - P50 - P65 single stage, double stage and progressive Fig. 19a Burners type P45 single stage, double stage and progressive Fig. - Page 13 Fig. 20a Power supply terminal board for mono-phase burners type P45 Fig. 21 Fig. 20b Diagrams for burners WITHOUT printed circuit Type P20 - P30 C-.TN... Type P50 C-.TN... Fig. 22a Fig. 23a Type P20 - P30 C-.AB... Type P65 C-.AB...
- Page 14 Type P20 - P30 C-.MD... PROBE CONNECTION ON FULLY MODULATING BURNERS Fig. 24a Type P45 C-.MD Fig. 24b Type P65 C-.MD Fig. 24c Fig. 25 (**) Probe connection, see Fig. 25 Fan motor direction After completing the electrical connection of the burner, remember to check the rotation of the fan motor. The motor should rotate in an anti-clockwise direction looking at cooling fan.
- Page 15 GAS TRAIN INSTALLATION DIAGRAMS In Fig. 26a, Fig. 26b and Fig. 26c are shown the diagrams with the gas train components wich are included in the delivery and those wich must be fitted by the customer. The diagrams complies with regulations in force. MANUFACTURER CUSTOMER Burner equipped with 2 gas val-...
- Page 16 SETTINGS WARNING! THE SEALED SCREWS MUST NOT BE UNLOOSED! IN A SUCH CASE THE DEVICE WARRANTY IS IMMEDIATELY INVALIDATE! Fig. 27 - Multibloc MB-DLE - VPS504 VS T(VR) The multibloc unit is a compact unit consisting of two valves, gas pressure switch, pressure stabilizer and gas filter.
- Page 17 Gas valve Dungs MVD To adjust the gas flow rate unscrew the plug T, slacken the locking nut and apply a screwdriver to the adjusting screw VR. By turning clockwise, the flow is decresed and by turning anti- clockwise it is increased. When this operation has been completed lock the nut and screw down the plug T.
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Page 18: Gas Filter
GAS FILTER The gas filters are components that remove the dust particles carried by the gas, and prevent the elements at risk (e.g.: burners, counters and regulators) from becoming rapidly blocked. The filter is normally installed upstream from all the control and on-off devices. - Page 19 ADJUSTMENT OF GAS AND AIR FLOW RATE WARNING: During commissioning operations, do not let the burner operate with insufficient air flow (danger of formation of car- bon monoxide); if this should happen, shut down the burner, increase the opening of the air damper and start up the burner again to ensure the purging of the carbon monoxide from the combustion chamber.
- Page 20 Burners with fully modulating or progressive operation During the test in the factory, the gas throttle valve, air damper in low flame operation and the servocontrol are set to average values. To recalibrate the burner on site, proceed as follows. 1 Switch on the burner and drive it to high-flame (servocontrol position = 90°).
- Page 21 SERVOCONTROL CAMS SETTING Berger STA6 B 3.41 (hi-lo flame burners) Landis SQN30.151 (hi-lo flame burners) Berger STA12B3.41 (progressive and fully modulating burners) Landis SQN30.251 (progressive and fully modulating burners) Berger STA15B3.41 (progressive and fully modulating burners) Fig. 38a Fig. 38b Landis SQN70.224A20 (hi-lo flame burners) Berger STA4.5BO.37/6 Landis SQN70.424A20 (progr.
- Page 22 Calibration of air pressure switch (single stage burners) Calibration is carried out as follows.: Remove the transparent plastic cap. With the burner in operation, after air and gas setting have been completed, slowly turn the adjusting ring nut VR in the clockwise direction until the burner lockout;...
- Page 23 PART II: OPERATION LIMITATIONS OF USE THE BURNER IS AN APPLIANCE DESIGNED AND CONSTRUCTED TO OPERATE ONLY AFTER BEING CORRECTLY CONNECTED TO A HEAT GENERATOR (E.G. BOILER, HOT AIR GENERATOR, FURNACE, ETC.), ANY OTHER USE IS TO BE CONSIDERED IMPROPER AND THEREFORE DANGEROUS. THE USER MUST GUARANTEE THE CORRECT FITTING OF THE APPLIANCE, ENTRUSTING THE INSTALLATION OF IT TO QUALIFIED PERSONNEL AND HAVING THE FIRST COMMISSIONING OF IT CARRIED OUT BY A SERVICE CENTRE AUTHORISED BY THE COMPANY MANUFACTURING THE BURNER.
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Page 24: Operation
OPERATION Bring to the ON position the mains switch A on the burner electrical board front panel. Check the flame control device is not in the lockout position (light B on), if necessary reset it by means of the pushbutton C (reset);... -
Page 25: Periodical Operations
NOTE: The check on the ignition and detection electrodes is carried out after removing the combustion head. Removal of the combustion head Fig. 42 - Burners P20 - P30 - P45 - P50 Remove the lid C. Unscrew the 2 screws S which hold in position the washer, unscrew then the screw VRT, to free the threaded rod AR. - Page 26 Fig. 44 - Electrodes position setting P20 - P30 - P45 Detection electrode Ignition electrode Earth electrode Fig. 45 - Electrodes position setting P50 - P65 Detection electrode Earth electrode Ignition electrode Check of ionisation current To measure the detection signals refer to the diagrams in Fig. 46 - Fig. 47. If the signal is less than the value shown, check the position of the detection electrode, the electrical contacts and if necessary replace the detection electrode.
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Page 27: Troubleshooting
If the power supply to the burner is 230V three-phase or 230V phase-phase (without a neutral), with the Landis LGB2... o LMG2... flame control device, between the termi- nal 2 on the board and the earth terminal, an RC Landis RC466890660 filter must be inserted C - Capacitor (22nF/250V) LGB - LMG - Landis flame control device... - Page 28 ELECTRICAL DIAGRAMS Electrical diagrams code 18-009 Rev.1 and 18-020 - complete key Fan motor remote contactor coil Contacts of fan motor overload tripped Connector for three-phase versions Fan motor contactor contacts Flame detection electrode Valves connector Network side solenoid gas valve (or valves group) Burner side solenoid gas valve (or valves group) F-FU Fuses (FU =6,3A three-phase versions - FU =10A monophase version)
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Page 29: Electrical Diagrams
ELECTRICAL DIAGRAMS Electrical diagram code 18-009 Rev. 1 - Burners P20 - P30 C-.TN.., C-.AB.., C-.PR.., P50 C-.TN.., P65 C-. AB PART II: OPERATION... - Page 30 Electrical diagram code 18-020 - Burners P45 C-.TN.., C-.AB.., C-.PR.. PART II: OPERATION...
- Page 31 Electrical diagrams 04-622 - 04-642 - 05-615 - complete key Fan motor remote contactor coil Contacts of fan motor overload tripped Fan motor contactor contacts Flame detection electrode Network side solenoid gas valve (or valves group) Burner side solenoid gas valve (or valves group) F÷F2 Fuses Main switch...
- Page 32 Electrical diagram code 04-622 - Burners P20 - P30 C-.MD PART II: OPERATION...
- Page 33 Electrical diagram 04-642 - Burners P45 C-.MD PART II: OPERATION...
- Page 34 Electrical diagram code 05-615 - Burner P65 C-.MD PART II: OPERATION...
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Page 35: Spare Parts
SPARE PARTS PART II: OPERATION... - Page 36 SPARE PARTS - Burners P20 - P30 C-.TN, C-.AB PART II: OPERATION...
- Page 37 PART II: OPERATION...
- Page 38 SPARE PARTS - Burners P45 C-.TN..., C-.AB, P50 C-.TN, P65 C-.AB PART II: OPERATION...
- Page 39 PART II: OPERATION...
- Page 40 SPARE PARTS - Burners P20 - P30 C-.MD... PART II: OPERATION...
- Page 41 PART II: OPERATION...
- Page 42 SPARE PARTS - Burners P45 - P65 C-.MD PART II: OPERATION...
- Page 43 POS. DESCRIPTION C-.MD..S...40 C-.MD..S...50 C-.MD..S...50 C-.MD..S...65 C-.MD..L...40 C-.MD..L...50 C-.MD..L...50 C-.MD..L...65 FLAME CONTROL DEVICE SOCKET 203.04.15 203.04.15 203.04.15 203.04.15 FLAME CONTROL DEVICE LANDIS LGB22 202.04.30 202.04.30 202.04.30 202.04.30 FLAME CONTROL DEVICE LANDIS LMG22 202.04.50 202.04.50 202.04.50 202.04.50 LEAKAGE CONTROL 219.16.04 219.16.04 219.16.04 219.16.04 OVERLOAD RELAY...
- Page 44 APPENDIX: COMPONENTS CHARACTERISTICS LANDIS LGB 21/22.. FLAME CONTROLLER LANDIS LMG21/22/25 FLAME CONTROLLER GAS MULTIBLOC REGULATOR DUNGS MB-DLE 405-407-410-412-415-420 VALVE PROVING SYSTEM DUNGS VPS504 SAFETY SOLENOID VALVES DUNGS MV/5, MVD/5, MVDLE/5 SINGLE STAGE LANDIS VALVES APPENDIX: COMPONENTS CHARACTERISTICS...
- Page 45 LANDIS LGB 21/22.. FLAME CONTROLLER ZV1 Main flame ignition gas valve or BV1 for burners with main flame supervision Function 1...12 Terminals of the burner flame controls on AGK11's socket The programme run is shown in the diagrams. The required and per- Command signal from flame control missible input signals for the control part and flame supervision part are pictured as a hatching correspondingly in the function diagrams.
- Page 46 Command program in the event of a defect Specifications Supply voltage 220 V AC -15%...240 VAC +10% In the event of a defect the inflow of fuel is interrupted. When the block occurs in the preventilation time (not indicated by the symbol) Frequency 50 Hz -6%...60 Hz +6% the causes may be the air pressostat LP or a premature signal of...
- Page 47 KEY - internal diagram Key - programmer's diagram Block signal start-up (command from regulator “R”) Main relay with "ar" contacts main relay Block relay with "br" contacts burner operation Fuel valve program start position (start up) Dbr1 U bolt flame relay Unblocking button waiting time Detection electrode...
- Page 48 LANDIS LMG21/22/25 FLAME CONTROLLER Startup program FEATURES Start-up, controlled by LR The series of equipment LMG.. is interchangeable with the series -fan command after the waiting time tw for LMG21/25, or after the LGB.., all diagrams and accessories are interchangeable, the main period t11 for LMG22.
- Page 49 Control program in the event of fault Diagnosis table If a fault occurs, all outputs will immediately be deactivated (in less Number of flashing than 1s). - Possible causes On restoration of power, a restart will be made with the full progra 2 flashing ** sequence.
- Page 50 GAS MULTIBLOC REGULATOR DUNGS MB-DLE 405-407-410- Release time Approx. 10 - 26s, depending on test 412-415-420 volume and input pressure Sensitivity limit max. 50 l/h Specifications Switch on duration of control 100% Nominal diameters - Flange with pipe threads as per ISO 7/1 Max.
- Page 51 LANDIS VALVES Operation Single stage valves When the command to open the valve is given, the pump is switched on and the relief valve is simultaneously closed. From the nearly filled reservoir below the piston, the oil is now pumped into the chamber above the piston, causing the piston to move downward and thus opening the valve - against the force of the retum spring.