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ADJUSTMENT OF MULTI-BLOC, MB-DLE 405-420

Max. inlet pressure: 360 mbar.
Adjustable governor pressure:
405 - 412 S50 = 4 - 50 mbar
415 - 420 S20 = 4 - 20 mbar
415 - 420 S50 = 20 - 50 mbar
Solenoid valve: Slow opening valves
with adjustable start load and max.
flow.

1. Protective cover start load ad-

justment

2. Hydralic damping
3. Fixing screw
4. Test nipple (inlet pressure)
5. Test nipple (pressure after go-

vernor)

6. Test nipple (pressure in inner

assembly)

7. Governor
8. Filter
9. Gas pressure switch

10. Solenoid valve

FLOW ADJUSTMENT

Loosen the fixing screw a. Turn the
hydraulic device b:
to the right = the gas flow is reduced
to the left = the gas flow is increased
Do not forget to tighten the fixing screw
again.
The flow adjustment can also be made
by means of the governor. Adjust the
outlet pressure to a value giving the
desired gas flow on the fully open
valve. At small capacities (gas flows) it
is also necessary to adjust as abore.

ADJUSTMENT OF GOVERNOR

Adjust outlet pressure from governor
by means of a screw . Min. and max.
outlet pressures corresponds to appr.
60 turns of the spring. It is not possible
to change pressure springs in order to
change the outlet pressure.

Turn to the right = the outlet pressure
is increased
Turn to the left = the outlet pressure is
reduced

ADJUSTMENT OF START GAS
FLOW

Remove the protective cover c.
Turn the adjustment knob d (use the
protective cover as a tool) to the desi-
red start gas flow.

Turn to the right = the start gas flow is
reduced
Turn to the left = the start gas  flow is
increased

ADJUSTMENT OF START GAS
FLOW

ADJUSTMENT OF GOVERNOR

FLOW ADJUSTMENT

172 505 02  97-02

Summary of Contents for Bentone BG 450

Page 1: ...Providing sustainable energy solutions worldwide 178 011 75 2 2016 11 28 Installation and maintenance instruction BG 450...

Page 2: ......

Page 3: ...ide stop is installed before servicing Take great care when servicing Trap and pinch risks can be present The boiler s sound level can exceed 85 dBA during operation Use ear protectors when present in...

Page 4: ...10 Motor 18 Switch l ll Formodulatingburner Change overswitchmanually automatically 19 Indicating lamp Stage 1 20 Switch 0 1 21 Contactor 22 Controlbox 23 Ignitiontransformer 24 MultiBloc 11 Connecti...

Page 5: ...G Naturalgas LPG Naturalgas LPG 450 120 550 12 4 6 55 21 360 40 30 50 2 Town gas 2 Town gas 2 Town gas 2 Town gas OUTRANGE TECHNICAL DATA Type designation BG 450 DIMENSIONS 1 Calorificvalue Natural ga...

Page 6: ...TECHNICAL DATA DIMENSIONSOFFLANGE 172 215 19 00 01 14 210 254 280 163...

Page 7: ...itch maxi 6a Mainvalve 7 1 2 3 5a 5b 4 6b 6a 10 Incorporated in the MultiBloc 9 6b Safetyvalve 1 7 Valveprovingsystem 9 Air pressure switch 10 Gasburnercontrol Pos 5b 7 Components not required accordi...

Page 8: ...very useful DO LIKE THIS Remove the cover of the fan hous ing LoosenthenutDofthegasassem bly package Loosen ignition cable and ionisa tion cable of gas assembly Loosen the screw A on both sides Pull o...

Page 9: ...1 5x max inlet pressure or min 150 mbar If any leakage locate the source by means of soapy water or a leak location spray After tightening repeat the test ELECTRICFUNCTIONTEST Ensurethatphaseandneutr...

Page 10: ...MEASURES AND CHECKS BEFORE START UP INNER ASSEMBLY Town gas INNER ASSEMBLY Natural gas LPG INNER ASSEMBLY Biogas UV detector 172 205 18 97 01 Propan Naturgas...

Page 11: ...essure of the gas at the gas meter 15 0 mbar f f 1 11 The gas volume read on the gas meter actually reads 1 11 12 9 14 4 m3 h Net calorific value Gasquality kWh Nm3 kJ Nm3 kcal Nm3 Naturalgas 10 3 37...

Page 12: ...perating switch S3 Control thermostat S4 Temperature limiter S5 Micro switch for hinged door S7 Main switch S8 Air pressure swith S9 Gas pressure switch T1 Ignition transformer X1 Connection terminal...

Page 13: ...ration LME 11 permits a maximum of three start attempts if the start cycle is uninterrupted Continuous Off Red Yellow Green Colour code table for multi coloured signal lamps Light diodes Status Colour...

Page 14: ...ressing the reset button 0 5 3 s Connecting signal ampliier Alarm control table Red lashing code on signal lamp LED Possible causes Flashing 2 x No lame at End of TSA Defective or obscured lame monito...

Page 15: ...Theflowadjustmentcanalsobemade by means of the governor Adjust the outlet pressure to a value giving the desired gas flow on the fully open valve Atsmallcapacities gasflows it is also necessary to ad...

Page 16: ...the sections dealing with adjustments of multi bloc com bustion air and combustion head Open the ball valve and switch on the main switch If the burner starts the actual adjustment can be made ADJUSTM...

Page 17: ...ichthegasswitchshouldswitchoff Set this pressure by means of the valve Carefully turn the knob see figure until the gas pressure switch switches off The value shown on the scale should then approximat...

Page 18: ...Troublefreeoperationisdependenton three factors electricity gas and air supply Should there be any changes intheratiobetweenthesethreefactors there is a risk of break downs It has beenprovedthatmostbr...

Page 19: ...cient 5 Is the gas relay of the burner ready for start and not lockedout 6 Is the air supply to the burner sufficient To facilitate fault location we have drawn up a scheme showing the most frequent f...

Page 20: ...on the secondary side The ignition cable and the ionisation cable have been transposed Noflameestablishmentinspiteofatroublefreestart Thegassolenoidvalvedefective The gas solenoid valve does not open...

Page 21: ...cell is in a wrong position Voltage drop at certain times Air pressure switch defective or incorrectly adjusted Spark over in ignition electrodes REMEDY Contact the electricity authorities Adjusttheig...

Page 22: ...ply Insulate the chimney CAUSE The ambient temperature of the gas relay is too high The ignition spark is too weak Badcombustion Bad draught conditions The flue gas temperature is too high The CO2 con...

Page 23: ...le marquage CE de conformit Ljungby Sweden 141127 27 11 14 ENERTECH AB Bentone Division Box 309 SE 341 26 Ljungby Sweden H kan Lennartsson Enertech AB declares that the above mentioned products compl...

Page 24: ...ample room ther mostat if any 4 Check that the gas pressure to the burner is sufficient 5 Check that the electric fuses have not blown 6 Make a new attempt to start the burner and check the counter of...

Page 25: ...Measure ment Before After C A mbar mbar Small flame Large flame Measures Date Nm3 gas h Governor CO2 CO Flue gas temp Ionisa tion current Pressure Efficiency Fire room Chimney Measure ment Before Aft...

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Page 28: ...Enertech AB P O Box 309 SE 341 26 Ljungby www bentone se www bentone com...

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