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PART II: INSTALLATION

18

MultiBloc MB-DLE -

Assembling the gas train

MULTIBLOC DUNGS

MB-DLE 405..412

MB-DLE 415..420

Mounting

1

Mount flange onto tube lines: use appropriate sealing agent

2

Insert MB-DLE: note position of O rings

3

Remove MultiBloc between the threaded flanges

4

After installation, perform leakage and functional test

5

Disassembly in reverse order

Keys

1

Gasket

2

Gas filter

3

Gas valves group

4

Bellows unit

5

Manual valve

”direction” arrows for
installation

gas supply network

1

5

1

4

1

2

1

3

1

Note: the figure is indicative only

A

B

MB-DLE 405..412

A

B

C

D

MB-DLE 415..420

MOUNTING POSITIONS

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Содержание C85A

Страница 1: ...M039439CC Rel 0 3 10 2021 BURNERS BRUCIATORI BRULERS BRENNER QUEMADORES ГОРЕЛКИ Gas burners MANUAL OF INSTALLATION USE MAINTENANCE C85A C120A ...

Страница 2: ...be 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 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 will remain hot for some time after the burner has stoppe...

Страница 3: ...mixtures DIRECTIVES AND STANDARDS Gas burners European directives Regulation 2016 426 UE appliances burning 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 gaseous fuels EN 55014 1 Electromagnetic compatibility Requirements for house hold appliances ...

Страница 4: ...equipment of machi nes EN 60335 2 Electrical equipment of non electric appliances for house hold and similar purposes Safety requirements Burner data plate For the following information please refer to the data plate burner type and burner model must be reported in any communication with the supplier burner ID serial number must be repor ted in any communication with the supplier date of productio...

Страница 5: ...lectric actuator that moves proportionally the air damper and the gas butterfly valve uses an adju sting cam with variable shape This one allows the optimisation of the gas flue values as to get an efficient combustion 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 ...

Страница 6: ...polymer silenced air intake LP Extended blast tube aluminium air intake 5 DESTINATION COUNTRY see data plate 6 BURNER VERSION A Standard Y Special 7 EQUIPMENT 0 2 gas valves 1 2 gas valves gas proving system 7 2 gas valves maximum gas pressure switch 8 2 gas valves gas proving system maximum gas pressure switch 8 GAS CONNECTION see Specifications 32 Rp11 4 40 Rp11 2 50 Rp2 65 DN65 80 DN80 WARNING ...

Страница 7: ...re 15 C temperature and are valid for G20 gas net calorific value Hi 34 02 MJ Stm3 9 45 kWh Stm3 Note2 Maximum gas pressure 360 mbar with Dungs MBDLE Maximum gas pressure 500 mbar with Siemens VGD Minimum gas pressure see gas curves Warning Burners are suitable only for indoor operation with a maximum relative humidity of 80 GAS CATEGORY COUNTRY I2H AT ES GR SE FI IE HU IS NO CZ DK GB IT PT CY EE ...

Страница 8: ...591 458 327 541 50 850 576 469 338 525 65 992 718 469 338 593 292 C120A AB 32 87 1112 1222 380 490 320 865 591 234 264 458 327 541 40 850 576 473 342 526 50 992 718 563 432 526 292 65 966 692 559 428 565 310 K K O max O min H P M P N B AA G BB CC F C U E D Y AD Q A Z L W J R S Boiler recommended drilling tem l t Burner flange V S According to the gas train size and the burner type MB DLE or VGD va...

Страница 9: ... 525 PR MD 0 65 65 963 718 539 408 593 292 PR MD 1 65 65 1127 800 469 338 593 292 C120A PR MD 0 40 40 1182 1292 380 490 320 918 591 327 234 264 458 327 541 PR MD 1 40 40 1043 716 458 327 541 PR MD 0 50 50 903 576 473 342 526 PR MD 1 50 50 978 651 473 342 526 PR MD 0 65 65 1045 718 563 432 526 292 PR MD 1 65 65 1127 800 563 432 526 292 PR MD 0 80 80 1019 692 559 428 565 310 PR MD 1 80 80 1101 774 5...

Страница 10: ...2 526 PR MD 0 65 65 1062 718 563 432 593 292 PR MD 1 65 65 1144 800 563 432 593 292 C120A PR MD 0 40 40 1253 1363 380 490 345 935 591 234 264 357 458 327 541 512 PR MD 1 40 40 1060 716 458 327 541 PR MD 0 50 50 920 576 473 342 526 PR MD 1 50 50 1006 662 473 342 526 PR MD 0 65 65 1062 718 563 432 593 292 PR MD 1 65 65 1144 800 563 432 593 292 PR MD 0 80 80 1036 692 563 432 565 310 PR MD 1 80 80 111...

Страница 11: ...bient 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 On this diagram the maximum output point is usually reached by adjsuting the combustion head to its MAX position see paragraph Adjusting the combustion head the minimum output point ...

Страница 12: ...xis the value of pressure necessary to get the requested furnace input This value must be lower or equal to the pgas value calcula ted before GAS PRESSURE IN THE NETWORK mbar C85A M Stm3 h C120A M Stm3 h GAS PRESSURE IN THE NETWORK mbar C120A L 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 i...

Страница 13: ... the combustion chamber 3 Gas pressure outlet on the butterfly valve 4 Differential pressure gauge Measuring the gas pressure in the combustion head In order to measure the pressure in the combustion head insert the pressure gauge probes one into the combustion chamber s pressure outlet to get the pressure in the combustion chamber and the other one into the butterfly valve s pressure outlet of th...

Страница 14: ...IONS 14 Pressure rate in combustion head curves Curves are referred to pressure 0mbar in the combustion chamber Gas pressure in combustion head C85A M Stm3 h C120A M Stm3 h Gas pressure in combustion head C120A L Stm3 h ...

Страница 15: ... operations 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 regulations Do not stand under lifted loads Packing The burners are despatched in wooden crates whose dimensions are 1636mm x 1036mm x 1016mm L x P x H Packing cases of this type are affected by ...

Страница 16: ...tact 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 necessary input and the pressure in combustion chamber are included in the burner performance curve otherwise the choice of the burner must be revised consulting the burner manufacturer To choose the blast ...

Страница 17: ...roperly tightened Key ATTENTION once the gas train is mounted according to the diagram on Fig 1 the gas proving test mus be per formed according to the procedure set by the laws in force ATTENTION it is recommended to mount filter and gas valves to avoid that extraneous material drops inside the valves during maintenance and cleaning operation of the filters both the filters outside the valves gro...

Страница 18: ...te position of O rings 3 Remove MultiBloc between the threaded flanges 4 After installation perform leakage and functional test 5 Disassembly in reverse order Keys 1 Gasket 2 Gas filter 3 Gas valves group 4 Bellows unit 5 Manual valve direction arrows for installation gas supply network 1 5 1 4 1 2 1 3 1 Note the figure is indicative only A B MB DLE 405 412 A B C D MB DLE 415 420 MOUNTING POSITION...

Страница 19: ...RUCIATORE ø185 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 appropriate sealing agent 2 Insert VB together with supplied O rings Check current position of O rings 3 Tighten supplied screws 8xM8x30 in accordance with section 8 4 Screws 4xM5x25 for VD assembly a...

Страница 20: ... 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 includes a vent limiter according to UL 353 and ANSI Z21 18 CSA 6 3 No venting required in loca tions where vent limiters are accepted by the jurisdiction 4 Only PS pressure sensors specified by DUNGS...

Страница 21: ...he safety valve during maintenance operation SA SA TP D BS SKP1 SKP2 SIEMENS VGD Mounting positions TP Siemens VGD con SKPx Example of gas train Gas filter PGCP PGMIN PGMAX T VR Performance range mbar neutral yellow red Spring colour SKP 25 0 0 22 15 120 100 250 Spring colour SKP 25 4 7 700 150 1500 Siemens VGD valves with SKP actuator The pressure adjusting range upstream the gas valves group cha...

Страница 22: ...trained personnel directly coordinated and authorized by Technical Service Always check in advance that the system electrical interlock is fitted with a safety circuit breaker WARNING It is forbidden to use the fuel pipes for the execution and or completion of the grounding The system must comply with the current regulations Earth the system always check in advance the connection functionality and...

Страница 23: ... Capacitor 22nF 250V LME LMV Siemens control box R Resistor 1MΩ M Terminal 2 LGB LMC LME terminal X3 04 4 LMV2x LMV3x LMV5 LME7x RC466890660 RC Siemens filter DANGER The safety elements and devices have been realized to protect from risks deriving from expected use adjustment and maintenance Tampering with them even minimally and therefore creating dangerous situations for people property and the ...

Страница 24: ...WN RESET THE CONTROL BOX BY MEANS OF 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 COUPLING FLANGE CAN BECOME VERY HOT AVOID TOUCHING THEM SO AS NOT TO GET BURNT Fig 3 Burner front panel DANGER Incorrect motor rotation can seriously damage property an...

Страница 25: ...in the lockout position light B1 on if necessary reset it by means of the pushbutton S2 reset Check that the control thermostats or pressure switches enable the burner to operate Check the gas supply pressure is sufficient light G3 on if necessary adjust the pressure switches Only burners provided with the gas proving system the check cycle of the gas proving system starts the end of this check is...

Страница 26: ...nd the safety chain 7 Turn the main switch on the panel front with the MAN AUTO selector to position 0 8 Select the GAS mode with the fuel selector on the front of the panel if any 9 Check the phase and neutral position is correct 10 Open the manual shut off valves slowly in order to prevent any water hammers that might seriously damage valves and pressure regulator 11 Check the sense of rotation ...

Страница 27: ...ing screw VB by a number of turns By unscrewing the regulator RP the valve opens screwing the valve closes The pressure stabilizer is adjusted by operating the screw VS located under the cover C By screwing down the pressure is increased and by unscrewing it is reduced Note the screw VSB must be removed only in case of replacemente of the coil Siemens VGD valves group remove cap T and act on the V...

Страница 28: ...on position As far as burners fitted with Dungs MBC gas valves the low flame cam does not match the ignition cam position that is why it must be set at about 30 more than the ignition cam Turn the burner off and then start it up again If the adjustment is not correct repeat the previous steps Berger STA12 a key is provided to move the cams Siemens SQN72 a key is provided to move cams I and IV the ...

Страница 29: ...unscrew to decrease Move again the low flame cam towards the minimum to meet the next screw on the adjusting cam and repeat the previous step go on this way as to reach the desired low flame point Berger STA12B3 41 progressive and fully modulating burners Siemens SQN72 4A4Axx progressive and fully modulating burners For DUNGS MB DLE Siemens VGD gas valves Actuator camsBerger STA Siemens SQN72 High...

Страница 30: ...rogressive burners Go on adjusting the burner as described before paying attention to use the CMF switch intead of TAB The CMF position sets the oprating stages to drive the burner to the high flame stage set CMF 1 to drive it to the low flame stage set CMF 2 Adjusting the combustion head The burner is factory adjusted with the combustion head in the MAX position accordingly to the maximum power T...

Страница 31: ...pressure systems requires PS 10 40 or PS 50 200 Outlet pressure MIN 10 25 50 75 MAX PS 10 40 4 mbar 0 4 kPa 2 w c 10 mbar 1 0 kPa 4 w c 25 mbar 2 5 kPa 10 w c 50 mbar 5 0 kPa 20 w c 75 mbar 7 5 kPa 30 w c 100 mbar 10 0 kPa 40 w c PS 50 200 20 mbar 2 0 kPa 8 w c 50 mbar 5 0 kPa 20 w c 125 mbar 12 5 kPa 50 w c 250 mbar 25 0 kPa 100 w c 375 mbar 37 5 kPa 150 w c 500 mbar 50 0 kPa 200 w c ATTENTION To...

Страница 32: ...usted by operating the screw VS located under the cover C By screwing down the pressure is increased and by unscrewing it is reduced Note the screw VSB must be removed only in case of replacemente of the coil Key 1 Electrical connection for valves 2 Operation display optional 3 Pressure governor closing tap 4 Start setting cap 5 Hydraulic brake and rate regulator 6 Coil 7 Test point connection G 1...

Страница 33: ...uced by 15 Repeat the ignition cycle of the burner and check it runs properly Refit the transparent plastic cover on the pressure switch Calibration of low gas pressure switch As for the gas pressure switch calibration proceed as follows Be sure that the filter is clean Remove the transparent plastic cap While the burner is operating at the maximum output test the gas pressure on the pressure port...

Страница 34: ...mine and clean the detection electrode photoelement according to the burner models replace it if necessary in case of doubt check the detection circuit after the burner start up Clean and grease leverages and rotating parts At least every 2 months or more often if needed clean the room where the burner is installed Avoid leaving installations papers nylon bags etc inside the room They could be suc...

Страница 35: ...f the pressure difference between pressure connection 1 and 3 Fig 1 Fig 3 is twice as high compared to the last check You can change the filter without removing the fitting 1 Interrupt the gas supply closing the on off valve 2 Remove screws 1 4 using the Allen key n 3 and remove filter cover 5 in Fig 5 3 Remove the filter 6 and replace with a new one 4 Replace filter cover 5 and tighten screws 1 4...

Страница 36: ...osition of the OR ring ATTENTION avoid the ignition and detection electrodes to contact metallic parts blast tube head etc otherwise the boi ler s operation would be compromised Check the electrodes position after any intervention on the combustion head ATTENTION avoid the ignition and detection electrodes to contact metallic parts blast tube head etc otherwise the boiler s operation would be com ...

Страница 37: ...ode or the detector Checking the detection current with photocell LME L P G To check the detection signal follow the scheme in the picture below If the signal is less than the value indicated check the position of the detection electrode or detector the electrical contacts and if necessary replace the electrode or the detector ATTENTION avoid the ignition electrodes to contact metallic parts blast...

Страница 38: ...ed on the actual 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 stop proceed as follows 1 turn the burner main switch to 0 Off position 2 disconnect the power mains 3 close the fuel valve of the supply line Burner disposal In case of disposal follow the...

Страница 39: ...e burner control BURNER LOCKS OUT WITHOUT ANY GAS FLOW Gas valves don t open Check voltage on valves if necessary replace valve or the burner control Check if the gas pressure is so high that the valve cannot open Gas valves completely closed Open valves Pressure governor too closed Adjust the pressure governor Butterfly valve closed Open the butterfly valve Maximum pressure switch open Check conn...

Страница 40: ... tested for correct contact positions t11 Programmed opening time for actuator SA Only with LME22 The air damper opens until the nominal load position is reached Only then will fan motor M be switched on t10 Specified time for air pressure signal On completion of this period of time the set air pressure must have built up or else lockout will occur t1 Prepurge time Purging the combustion chamber a...

Страница 41: ...ed time for air pressure signal t11 Programmed opening time for actuator SA t12 Programmed closing time for actuator SA SB R W GP AL M LP BV1 Z FS tw t1 t3n TSA t4 7 t10 EK2 12 10 3 7 4 6 1 8 t3 A B B C D 11 SB R W GP AL LP SA BV1 LR BV2 Z FS tw t1 t3n TSA t4 7101d02 0606 t11 t12 EK2 12 10 3 7 4 5 6 1 8 A B B C D 9 t3 t10 LK M I 11 SB R W GP AL LP BV1 LR BV2 Z FS tw t1 t3n t4 7101d05 0206 12 10 3 ...

Страница 42: ...t W Limit thermostat pressure switch Z Ignition transformer LME22 connection diagram NT PC control RESET EK FSV ION 1 2 3 M 4 BV1 5 7 Z 10 AL T 12 R W GP STB 9 7101 24 0606 pa 6 LP 8 EK 11 K1 K2 1 K3 K2 2 H Si L N NT RESET EK FSV ION 1 2 3 M 4 BV1 5 BV2 7 Z 10 AL T 12 R W GP STB 9 pa 6 LP 8 EK 11 K1 K2 1 K3 K4 K2 2 H Si L N PC control NT PC control RESET EK FSV ION 1 2 3 M 4 BV1 5 BV2 7 Z 10 AL T ...

Страница 43: ...ult status is showed by the red LED inside the LME s lockout reset buttonaccording to the Error code table RESETTING THE BURNER CONTROL When lockout occurs the burner control can immediately be reset by pressing the lockout reset button for about 1 3 seconds The LME can only be reset when all contacts in the line are closed and when there is no undervoltage LIMITATION OF REPETITIONS only for LME11...

Страница 44: ...ain and programs only after the air damper is fully open and end switch a has changed over to feed power to terminal 8 t1 Prepurge time with air damper fully open nominal amount of combustion air Shortly after the start of the prepurge time air pressure switch LP must change over thus interrupting the current path between terminals 4 and 13 Otherwise the burner control would go to lockout start of...

Страница 45: ...warning device alarm AS Unit fuse B Wire link on the burner control s base BR Lockout relay with br contacts BV Fuel valve bv Auxiliary contact in the valve actuator for the fully closed d Contactor or relay EK Lockout reset button ION Ionization probe FR Flame relay with fr contacts FS Flame signal GP Gas pressure switch H Mains isolator L Lockout warning lamp LK Air damper LP Air pressure switch...

Страница 46: ...m Current load of control terminals max 4 A to VDE 0660 AC3 Degree of protection IP40 to be ensured through mounting with the exception of the connection area termi nal base Storage Temperature range 20 60 C 95 r h Operation Temperature range 20 60 C 95 r h Weight approx 1000 g A t11 t7 t1 t12 B C D t6 t13 t10 t8 P 20 7 19 8 9 9 10 I II III IV V VI VII VIII X XII XIII XIV a b a b a b a b a b a b a...

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Страница 52: ...ia 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 and omissions excepted ...

Страница 53: ...FRONTALE QUADRO FRONT CONTROL PANEL ...

Страница 54: ...FRONTALE QUADRO FRONT CONTROL PANEL ...

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