Bentone BG 650i M J/K IP54 Installation And Maintenance Instruction
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Bentone BG 650i M J/K IP54 Installation And Maintenance Instruction

Bentone BG 650i M J/K IP54 Installation And Maintenance Instruction

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CR00264
178 096 82-2
2021-08-02
Providing sustainable energy solutions worldwide
Installation- and maintenance instruction
BG 650i M J/K IP54
LMV37
MB-DLE 415
Translation of the original instructions.

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Summary of Contents for Bentone BG 650i M J/K IP54

  • Page 1 CR00264 178 096 82-2 2021-08-02 Providing sustainable energy solutions worldwide Installation- and maintenance instruction BG 650i M J/K IP54 LMV37 MB-DLE 415 Translation of the original instructions.
  • Page 2 1~230V 1,0A 50Hz IP 20 Motor supply MADE IN SWEDEN BY 1. Manualer på övriga språk 1. Manuals in other languages 1. Manualer på andre sprog 2. www.bentone.com\ 2. www.bentone.com\download 2. www.bentone.com\download nedladdning or scan QR-code. eller scan QR-koden. eller scanna QR-koden.

  • Page 3: Table Of Contents

    4.4 Electrical connection ______________________________ 13 4.5 Handling and lifting instruction _____________________ 14 4.6 Fitting the burner to the boiler ______________________ 15 4.7 Inspection of gas nozzle before commissioning _______ 16 4.8 Gas nozzle _____________________________________ 17 4.9 SQM damper motor ______________________________ 18 Bentone...

  • Page 4: General Information

    • Burner pipes, fan wheels and air dampers may contain sharp edges. • The surface temperature of the burner’s components can exceed 60 °C. • Caution: The burner has moving parts, and there is risk of crushing injuries. 172 515 01 2018-01-02 Bentone...
  • Page 5 Open windows and doors. Close the gas ball valve. Warn residents; do not use doorbells. Evacuate the building. Notify the installer or gas supplier once the building has been evacuated. Bentone...
  • Page 6 Delivery check • Make sure everything is delivered and the goods have not been damaged during transit. • If something is wrong with a delivery, report it to the supplier. • Transport damage must be reported to the shipping company. Bentone...

  • Page 7: Technical Data

    *590 *743 BG 650 * The above dimensions are max. measurements. Depending on the components used, the measurements may vary. ** Min. recommended distance to floor. 2.1.1 Heat generator connection dimensions (ø210)ø254-280 Ø 190 BG 650 172 515 95-2 Bentone...

  • Page 8: Gas Categories, Approved Gases

    34.02 8126 Natural gas 29.25 6986 Butane 32.5 116.09 27728 Propane 24.6 88.00 21019 Gas quantity and capacity vary according to grade of gas and connection pressure. 2.3 Gas categories, approved gases Only dry gas is permitted for use. Bentone...

  • Page 9: Working Field

    Alt.2 The burner’s noise level can be reduced by connecting the burner’s air intake to the air duct that opens into an appropriate location. Installation must be done so it does not prevent air supply to the burner. Bentone...

  • Page 10: Description

    2.6 Description Gas pressure switch Gas pressure switch max Damper motor, gas Electrodes Multibloc Ignition transformer Damper motor, air Ball valve Air pressure switch Brake plate Motor Nozzle Electrical box (burner) Nozzle assembly Burner tube Ionisation electrode Locking device, flange Bentone...

  • Page 11: Components - Electrical Box (Automatic Control Unit)

    2.7 Components – Electrical box (automatic control unit) Switch 0-1 Thermal overload protection AZL display for LMV automatic control unit Fuse Disconnector Automatic control unit LMV Contactor Bentone...

  • Page 12: General Instruktions

    Adjust the burner to appr. 20% excess air in accordance with the table. Check the flue gas temperature. Calculate the efficiency. Check also the actual gas volume on the gas meter so that the correct input is achieved. 172 515 85 2018-08-10 Bentone...

  • Page 13: Installation

    • The connection should be made in accordance with the wiring diagram. • Fuse rating is as required If an electric connection other than the one recommended by Enertech is used, a risk of damage and injury can arise. 172 515 85 2018-08-10 Bentone...

  • Page 14: Handling And Lifting Instruction

    4.5 Handling and lifting instruction 4.5.1 BG 550, BG 650 The lifting aid used here, is available as spare part. 172 515 34 Bentone...

  • Page 15: Fitting The Burner To The Boiler

    Once the gas flange is fitted to the boiler, it is easy to lift the burner body up onto the guides. Assemble the burner in reverse order to its disassembly. Check the gas tightness. Service position 172 515 87 2018-08-17 Bentone...

  • Page 16: Inspection Of Gas Nozzle Before Commissioning

    Re-assemble the burner in reverse order to that described above. When re- assembling, make sure that the O-ring located between the gas nozzle and the gas flange is in the correct position when the nozzle is re-fitted. Serviceläge 172 515 88 2018-08-17 Bentone...

  • Page 17: Gas Nozzle

    4.8 Gas nozzle Natural gas Propane Biogas (UV detector) 172 511 88 2018-08-21 Bentone...

  • Page 18: Sqm Damper Motor

    50%, max. 3 min. continuously Angular adjustment Usable range max. 90° Degree of protection IP54 Rated resolution encoder monitoring 0.7° 0-position of actuator drive shaft Supply state 0 ±0.6° Environmental conditions: Temperature range -20...+60 °C Humidity <95% r.h. 172 515 93 2018-08-17 Bentone...
  • Page 19 • One-time bend when laying the cable: 2 x cable diameter • Always run the high-voltage ignition cables separate from the unit and other cables while observing the greatest possible distance. • The holding torque is reduced when the actuator is disconnected from power. 172 515 93 2018-08-17 Bentone...

  • Page 20: Setting The Burner

    See section (LMV) for the setting procedure. 5.3 Setting the gas damper The position of the gas damper must be adjusted to achieve the desired minimum and maximum input power. See section 13.4 (LMV) for the setting procedure. 172 515 89 Bentone...

  • Page 21: Setting The Air Pressure Switch

    This is to ensure the reliable function of the burner. If breakdowns or interruptions occur, the air pressure switch is probably set to a too narrow position. Fit the protective cover, screw (Y). 172 515 89 Bentone...

  • Page 22: Setting The Min. Gas Pressure Switch

    The tolerance on the scale for the min. gas pressure switch is approx. ±15%. Open the ball valve. Remove the pressure gauge and close the pressure outlet (X). Check the gas tightness. Fit the protective cover, screw (Y). 172 515 89 Bentone...

  • Page 23: Setting The Overload Protection Gas Pressure Switch

    Set the overload protection gas pressure switch to this value by turning the scale. The tolerance on the scale for the gas pressure switch is approx. ±15%. Remove the pressure gauge and close the pressure outlet (X). Fit the protective cover, screw (Y). Check the gas tightness. 172 515 89 Bentone...

  • Page 24: Setting The Max. Gas Pressure Switch

    The tolerance on the scale for the max. gas pressure switch is approx. ±15%. Remove the pressure gauge and close the pressure outlet (X). Check the gas tightness. Fit the protective cover, screw (Y). Gas pressure switch, air pressure switch Setting range: 2.5–50 mbar 5-150 mbar 172 515 89 Bentone...

  • Page 25: Skeleton Diagrams

    Air damper motor Air pressure switch Gas burner control LMV Pos. 5b, 7: Components not required according to EN 676. Required over 1200 kW according to EN 676. When Biogas is used, Enertech shall always be contacted. 172 515 86 2018-08-02 Bentone...

  • Page 26: Multi-Bloc, Mb-Dle 412-420

    Rp 1, 1¼, 1½, 2 MB-DLE 420 B01 S52 Rp 1, 1¼, 1½, 2 Environmental conditions: Temperature range -15...70 °C Gas qualities Suitable for gases of families 1, 2, 3 and other neutral gaseous media. 172 515 91 2018-08-10 Bentone...
  • Page 27 Electromagnet Filter housing Measuring connection output pressure Input fl ange Measuring connection G 1/8 after valve 1 (possible Measuring connection G 1/8 connection pressure on both sides) Gas pressure switch, min. Output fl ange Electrical connection for pressure switch Bentone...
  • Page 28 6.8.3 Pressure taps Pressure outlets 1, 2, 3, 4, 5. Locking screw G 1/8 6.8.4 Electrical connection 172 515 91 2018-08-10 Bentone...
  • Page 29 Turning to right = higher regulator pressure Turning to left = lower regulator pressure Possible output ranges 4–50 mbar for MB-D 412 and 20–50 mbar for MB-D 415 and 420. Pressure is measured at pressure outlet no. 6. See section 10.3.3. 172 515 91 2018-08-10 Bentone...
  • Page 30 NB This adjustment is not suitable on burners with the LMV control system with a butterfl y gas valve. The adjustment of the amount of ignition gas is made here with the butterfl y valve. 172 515 91 2018-08-10 Bentone...

  • Page 31: Calculate Prepurge Time

    ((Q · 1,2) / 3600) ((200 · 1,2)/3600) Example B 9,5 · 5 285 seconds ((Q · 1,2) / 3600) ((500 · 1,2)/3600) 25 · 5 170 seconds Example C ((Q · 1,2) / 3600) ((2200 · 1,2)/3600) 172 515 92 2018-08-11 Bentone...
  • Page 32 Temperature of gas at the gas meter [°C] Barometer reading [mbar] Pressure of gas at the gas meter [mbar] Factor calculated for multiplication with flow in Nm /h to arrive at actual flow in Nm Actual flow · 273+T 1013.25 172 515 92 2018-08-11 Bentone...

  • Page 33: Calculating The Quantity Of Gas Supplied

    M = Quantity of gas consumed. V = Actual gas flow Calculation example: t = 1 min 10 s M = 4500 dm (litre) 4500 4.5 m 1000 0.0194 h 3600 ≈ 232 m 0.0194 172 515 92 2018-08-11 Bentone...

  • Page 34: Service

    Check the ionisation electrode (see chapter Gas nozzle). Replace if necessary. Fit the combustion assembly in reverse order. Press the burner together and lock using the nuts (B). Turn on the main power supply. Check/adjust the combustion. Check the gas tightness. 172 615 56 2018-08-10 Bentone...

  • Page 35: Replacement Of Damper Motor, Air

    Switch off the mains power.. position. If dampers do engage, the Mount the burner fully automatic control Turn on the mains power. unit will report an Check/adjust the combustion. error message. 172 615 56 2018-08-10 Bentone...
  • Page 36 172 615 56 2018-08-10 Bentone...

  • Page 37: Servicing Air Dampers

    Lock the damper motor in position where the damper is almost engaged but still has a small air gap by the fan housing. Install the intake grille for the air intake. Press the burner together and lock using the nuts (B). Check/adjust the combustion. 172 615 56 2018-08-10 Bentone...

  • Page 38: Replacement Of Damper Motor, Gas

    When tightening screw (Y), ensure that the damper is in the closed position. Connect the damper motor cable to the automatic control unit. Fit the Euro plugs and turn on the mains power. Check / adjust combustion. 172 615 56 2018-08-10 Bentone...

  • Page 39: Vibration

    • Check all bolts and nuts for correct torque. • Check fan wheel for damage and contamination. Change when dirty/ unbalanced. • Check motor bearings. If worn change motor/bearings. Use lid screw hole for sensor mounting. 172 615 56 2018-08-10 Bentone...

  • Page 40: Flame Monitoring And Ionisation Current Check

    Max. DC 16…40 µA, flame display approx. 100% Threshold values when flame is supervised by an ionization probe: - Start prevention (extraneous Intensity of flame (parameter 954) ≥18% light) - Operation Intensity of flame (parameter 954) >24% X10-05,2 172 615 57 2018-08-10 Bentone...
  • Page 41 • Is the circulation pump in operation? • Is there a supply of fresh air to the installation? • If integral components are of a different make from what is stated in this manual, see the enclosed loose-leaf. 172 615 04 Bentone...
  • Page 42 When connecting an external regulator of a type other than those which are installed on burners, see the manufacturer’s recommendations and the wiring diagram for burners. 172 615 58 2018-08-10 Bentone...
  • Page 43 • Installation will block burner operation and a manual restart will be required. Installation must be carried out pursuant to applicable regulations. 172 615 60 Bentone...
  • Page 44 11.2 Wiring diagram Bentone...
  • Page 45 Connection – display Operating switch Solenoid valve 1 Main switch Solenoid valve 2 Luftrycksvakt 11.4 Components – Electrical box (automatic control unit) Switch 0-1 Thermal overload protection AZL display for LMV automatic control unit Fuse Disconnector Automatic control unit LMV Contactor Bentone...
  • Page 46 Example: Modulating gas burner The system components (display and operating unit, actuators) are connected directly to the LMV37.4... basic unit. All safety-related digital inputs and outputs of the system are monitored by a contact feedback network. 178 021 85 Bentone...
  • Page 47 6.3 AT (DIN EN 60127 2 / 5) Mains supply: Input current depending on the operating state of the unit Under voltage Safety shutdown from operating position at mains voltage LMV37.400A2 Approx. AC 186 V Restart on rise in mains voltage LMV37.400A2 Approx. AC 195 V Bentone...
  • Page 48 X5-02 pin 2/3 POC *) RAST plug Function / Outputs pin number X3-05 pin 1 X4-02 pin 2/3 X6-03 pin 2/3 X8-02 pin 1/3 X7-01 pin 2/3 X7-02 pin 2/3 X3-05 pin 2 0° 0° 0° Legend to the sequence diagrams Bentone...
  • Page 49 Postpurge time (t3) Evacuation of test space Atmospheric pressure test Filling of test space Gas pressure test Gas shortage waiting time Valve proving is performed depending on the parameter settings: Simultaneously with the prepurge time and/or the afterburn time. Bentone...
  • Page 50 Only with fuel train Lo and 2 fuel valves Parameter 223: Repetition limit value gas pressure switch-min in connection with gas shortage program parameter 246 (phase 90) Max. drop-in/response time for air pressure switch Alternative to valve proving Alternative to pressure switch-max (Pmax) or POC Bentone...
  • Page 51 0°/10% Position as supplied (0°) 90°/100% Actuator fully open (90°) Input/output signal 1 (ON) Input/output signal 0 (OFF) Input permissible signal 1 (ON) or 0 (OFF) Bentone...
  • Page 52 Protection earth (PE) Supply for fuel meter Shielding: Input fuel meter For shielding the cables on the VSD, refer to: • Siemens SED2 VSD Commissioning Manual (G5192), chapters 4 and 7, or • Danfoss Operation Manual VLT 6000 (MG60A703), chapter Installation Bentone...
  • Page 53 Speed feedback signal Speed feedback signal Signal reference PWM speed output PWM speed output Signal reference DC 24 V external DC 24V external Controller input 4...20 mA Controller input 4...20 mA Power source Power source Controller Analog Analog Controller Bentone...
  • Page 54 • For changing to a higher menu level (press button for 3…8 s) • For changing the operating mode (press button for >8 s) /reset - Enter in parameter setting mode - Reset in the event of fault - One menu level down Bentone...
  • Page 55 Figure 4: Meaning of display Fault status message Flame present Valve controlled Ignition controlled Fan motor controlled Oil preheater on Heat request from controllers Parameter setting mode Info mode Service mode h min s Actuator closing Actuator opening Unit of current display Bentone...
  • Page 56 Postpurge time (t3) (abortion when load controller ON) Ph80 Valve proving test evacuation time Ph81 Valve proving test time atmospheric pressure, atmospheric test Ph82 Valve proving filling test, filling Ph83 Valve proving time gas pressure, pressure test Ph90 Gas shortage waiting time Bentone...
  • Page 57 Change to normal Change to normal display display >3 s <8 s Info level /reset >3 s <8 s /reset or automatic return after timeout of Service level menu operation (parameter 127) >8 s >1 s Parameter level Parameter level Bentone...
  • Page 58 Basic unit Air-fuel ratio control curves (primary setting) /reset Bild 388e/1109 /reset Air-fuel ratio control /reset The following sections Actuator explain the operating philosophy behind the parameter levels using a number of examples. /reset Error histery /reset Process data Bentone...
  • Page 59 Standardized speed Number of faults Error history: 701-725.01.Code 701. chronological error list index value of index Indexlista: 04 = error phase 01 = error code 05 = startup counter 02 = diagnostic code 06 = output 03 = error class Bentone...
  • Page 60 Press button combination to display CodE When releasing the buttons, 7 bars appear the first of whishes. h min s Press to select a number or letter. h min s Press to confirm the value /reset Bentone...
  • Page 61 The next bar starts flashing. h min s Complete the rest of the password according to the principle described. Example: Password consisting of 4 characters. min s After entery of the last character the password must be confirmed by pressing /reset Bentone...
  • Page 62 Press to select parameter 400 for initial commissioning and for setting air-fuel controll. /reset 201: appears fl ashing. h min s Press to go to the settings for air-fuel ratio control and parameter 201 for selecting the operating mode. Bentone...
  • Page 63 20 = gas modulating with pilot only when firing on gas (Gp1 mod fuel active) • 21 = gas modulating with pilot only when firing on gas (Gp2 mod fuel active) • 22 = oil modulating only when firing on oil (Lo mod fuel active) • Bentone...
  • Page 64 Select your setting by pressing one of the buttons This manual describes Press to save the setting for parameter 542: VSD “0=VSD OFF” type /reset burners. Press: to return to parameter level. To the next parameter Back to the previous parameter Bentone...
  • Page 65 Press simultaneously to set ignition position P0 of the fuel damper. Set a suitable fuel-air mixture so that the burner starts. Example: 30.0 h min s Press simultaneously and or to set ignition position P0 of the air actuator. Bentone...
  • Page 66 To the next curvepoint P9 appears flashing. Curvepoint for high-fire. Same procedure as with P0 h min s Note: is pressed first, the display jumps to 90! Back to the previous curvepoint When curvepoint 9 is set, press to start the burner. Bentone...
  • Page 67 This method makes the setting work easier and faster to complete. A more “correct” setting is obtained straight away. The process may need to be redone if the wrong input power was set for P9 initially. For this reason, be extremely careful when entering the first setting of P9. Bentone...
  • Page 68 Phase Fan ramp up (fan motor = ON, safety valve = ON) h min s Phase Traveling to prepurge position h min s Phase Prepurging h min s Phase Traveling to ignition position h min s Bentone...
  • Page 69 Phase Traveling to ignition position h min s Phase Preignition h min s Phase for first safety time (ignition transformer ON) h min s Phase for first safety time (ignition transformer OFF), preignition time OFF h min s Phase Interval 1 min s Bentone...
  • Page 70 Low flame position P1 can only be set when symbol is no longer highlighted. The value is adopted from P0 For fuel, keep depressed, for air , h min s press to adjust the value. When symbol is no longer highlighted. Bentone...
  • Page 71 The setting curve is therefore adjusted to the highest input power that the installation can handle. The desired input power is then set by entering how much of the maximum power is required. Bentone...
  • Page 72 When symbol  or  is no longer highlighted, you can press ESC a second time. h min s Press to exit parameter level. h min s The settings for air-fuel ratio control by the LMV37.4... are now completed. Bentone...
  • Page 73 0 = QRB / QRC 1 = ION / QRA Factory settings marked with bald text. When replacing detector flame between ionisation and UV-cell (QRA), no change to the setting parameters is required; simply disconnect and connect ionisation and UV-cell (QRA) respectively.. Bentone...
  • Page 74 When the Purging in the lockout position function is used, the fan may only be powered via a contactor and must not be connected directly to LMV37.4 (X3-05 pin 1)! Bentone...
  • Page 75 23 hours and 45 min of uninterrupted operation, followed by an automatic restart. When forced intermittent operation is inactivated the burner will run continuously. Forced intermittent operation is a standard feature. 239 Gas: Forced intermittent operation 0 = inactivate 1 = activated Factory settings marked with bald text. Bentone...
  • Page 76 After login is complete, continue with the setting work as shown below. h min s Press to select parameter 400 for initial commissioning and for setting air-fuel ratio control /reset Identifi cation of start for setting the curve parameters. h min s Bentone...
  • Page 77 The value is adopted from P0. For fuel, keep depressed, for air , Press to adjust the value. h min s When symbol is no longer highlighted, the next curvepoint P2 can be selected with To the next curvepoint back to the previous curvepoint Bentone...
  • Page 78 If required, readjust the gas pressure. For fuel, keep depressed, for air , h min s Press to adjust the value. When symbol is no longer highlighted, the curve is set and it is possible to go on with the rest of the setting. Bentone...
  • Page 79 /reset maximum capacity. Adjust the setting downwards or upwards using the buttons h min s Press to save the setting. /reset Press to return to parameter level. To the next parameter. Bentone...
  • Page 80 Back to the previous Completing parameter parameterization of the curve When symbol is no longer highlighted, you can press ESC a second time. h min s h min s The warm settings for air-fuel ratio control by the LMV37.4... are now completed. Bentone...
  • Page 81 To continue with the setting work, you need to log into service engineer level. See 5.3.4. After login is complete, continue with the setting work as shown below. Press for parameter level 000. Press /reset Display: Parameter 050, flashes, index 00, and value 0 do not. /reset Display: Parameter bAC_UP /reset Bentone...
  • Page 82 If an errror occurs during the backup process, a negativ value is displayed. For error diagnostics, the cause of the error can be determined from the diagnostic code of error message 137 (see Error code list) Press four times until the top menu is displayed. Bentone...
  • Page 83 After login is complete, continue with the setting work as shown below. Press for parameter level 000. Press /reset Display: Parameter 050, flashes, index 00, and value 0 do not. /reset Display: Parameter bAC_UP Press to select parameter rESstorE /reset Bentone...
  • Page 84 Press to select the restore process. /reset Press to shift the value in change mode 1 position to the left. Display: Value 1 flashes To detect potential dispalay errors, the value is displayed 1 place shifted to the left Bentone...
  • Page 85 The display shows current error code c: alternating with diagnostic code d: (refer to Flash code list). Example: Error code 4/diagnostic code 3 h min s When pressing for 1...3 s, rESEt appears on the display. /reset Bentone...
  • Page 86 SEr and then OPErAtE. >5 s /reset For a list of parameters, see table 5.3.3. h min s When the button is released, a change to info / service mode is made. >8 s /reset h min s Bentone...
  • Page 87 The unit initiates safety shutdown. The display shows current error code c: alternating with diagnostic code d:. h min s Press 1...3 s, to return to the normal display. /reset Example: Error code 12 / diagnostic code 0 h min s Bentone...
  • Page 88 Display: Parameter 701. flashes, index 01: and example value 201 does not. h min s Press to go to index 01: /reset Display: Parameter 701. does not flash, index 01: flashes, value 201 does not. h min s To the next index Back to the previous index. Bentone...
  • Page 89 /reset Press to go to display mode. /reset Display: Value 56 (number of startup) h min s Press to return to the index. Display: Parameter 701. does not flash, index 05: flashes, characters ._._ h min s do not. Bentone...
  • Page 90 To the next index Back to the previous index. When this display appears, you have reached the end of the error history. Display – End – appears flashing. h min s Press twice. HISt 700: for error history h min s Bentone...
  • Page 91 OFF UPr. h min s 13.7.3 Safety loop A unit whose safety loop and / or burner flange contact is open, and a controller ON signal is present, displays OFF S. h min s Bentone...
  • Page 92 Select another burner type than the one already selected by pressing one of the buttons Confirm this selection with The automatic control unit is now reset. /reset h min s Restart the setting process for the LMV automatic control unit as specified in 3.2.1. Bentone...
  • Page 93 LoAd 0.0 means Manually OFF. As long as the Manual OFF is active, OFF appears on the normal display flashing. To deactivate and to change to automatic operation, press for 3 seconds. Then OFF appears without flashing in the display. Bentone...
  • Page 94 Manually OFF must not be used just to put a burner out of operation when doing mounting work, or when the burner is not ready for operation. The safety notes contained in chapter Safety notes must be observed! Bentone...
  • Page 118 Burner control faulty Replace Air pressure gauge incorrectly set or faulty Check the settings and reset, or replace No acknowledgement signal due to incorrect adjustment or Check the settings and realign. misalignment of the control motor cams. 172 615 06 2018-01-10 Bentone...
  • Page 119 Poor draught conditions. Check the chimney. Flue gas temperature too high. Boiler overloaded Decrease the gas volume, sweep the chimney if necessary. content too low. Choke the air supply. Check the boiler for any leakages. Choke the draught if too high. Bentone...
  • Page 120 Flame at incorrect angle due to combustion head out of position. Check the combustion head and readjust. Condensation build up in boiler and chimney: Flue gas temperature too low or gas volume too low. Raise the flue gas temperature by increasing gas volume Insulate the chimney. Bentone...
  • Page 121 17. General instructions for gasburners 17.9.1 Installation Follow standards and instructions applicable to the Check that the burner is adapted to the gas quality in installation of gas burners. question. Ensure that the electric installation is made in accordance Check that the input pressure of the gas is correct. with existing regulations.
  • Page 122 Service- and inspection card Installation Boiler Name: Type: Efficiency kW: Address: Burner Type: Efficiency kW: Installed by: Date: Date gas/h Governor Fluegas Ionisation Pressure Efficiency temp current Fire Chimney room Measu- rement Before After °C µ A mbar mbar Small Flame Large Flame...
  • Page 128 Enertech AB. P.O Box 309, SE-341 26 Ljungby. www.bentone.com...

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