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6302 5450 – 02/2003 GB
Commissioning and
maintenance instructions
Logano GE434
Gas-fired special boiler
Please read carefully prior to installation and maintenance.
For heating engineers

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Summary of Contents for Buderus Logano GE434

  • Page 1 6302 5450 – 02/2003 GB For heating engineers Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler Please read carefully prior to installation and maintenance.
  • Page 2 We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 3: Table Of Contents

    ..........35 We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 4 ........71 We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 5: General

    40 Control thermostat Type 11BS Tab. 1 Boiler operating conditions We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 6 Union Sweden Slovenia Slovakia Turkey Ukraine Tab. 4 List of countries We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 7: Safety

    User tip for the optimum utilisation and setting of the control(s) plus useful information. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 8: Please Observe These Notes

    ! Safeguard the heating system against unintentional re-connection. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 9 We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 10: Tools, Materials And Accessories

    We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 11: Product Description

    Item 4: Boiler front panel Item 5: R.h. boiler block with thermal insulation We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 12: Specification

    Relative to 15 °C gas temperature and 1013 mbar air pressure We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 13 44.0 29.3 29.7 40.5 47.1 31.4 31.9 Tab. 9 Gas throughput We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 14: Boiler Connection

    The burner will then be switched OFF. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 15: Notes For The Connection Of The Boiler To The Pipework

    Item 2: Boiler flow = VK Item 3: Boiler return = RK We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 16: Filling The Boiler And Checking Connections For Leaks

    ! Vent the heating system during filling. ! Check all connections for leaks. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 17: Gas Pipe Connection

    Making the gas connection (viewed from the back) Item 1: Gas connection (l.h. and r.h. gas burner) We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 18: Heating System Start-Up

    The bottom of the central and rear side panels are secured with screws. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 19: Commissioning

    ! Carry out a proper leak test. ! Only use approved leak test agents to discover leaks. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 20: Purging The Gas Supply Pipe

    Purging the gas supply pipe Item 1: Test port for gas supply pressure and venting We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 21: Checking The Air Supply/Ventilation And Flue Pipe Connections

    14). PLEASE NOTE Ensure that any faults are immediately repaired. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 22: Checking The System Equipment

    48) suitable for butane, propane and mixtures thereof. (G30) Tab. 11 Burner factory settings We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 23 Only Buderus service engineers may carry out a conversion to another gas type. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 24: Starting The Heating System And Commissioning The Burner

    (see Chapter 11 "Troubleshooting", page 55). Fig. 8 Reset button Item 1: Reset button We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 25: Checking The Mains Gas Pressure

    (Fig. 9, Item 1). Item 1: Test port for gas supply pressure and venting We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 26: Checking For Leaks During Operation

    When the auxiliary gas pressure switch is installed, the system may be operated for short periods at a max. of 10 mbar. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 27: 10Recording Actual Values

    ! Insert the test probe into the core of the flue gas flow. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 28 In such cases, identify and remedy all related causes. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 29 We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 30 (Fig. 12, Item 5). ! Reconnect the heating system to the electrical mains supply. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 31 Also carry out the respective steps with the second flue gas temperature sensor. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 32: 11Installing The Side Panels

    Make the heating system user familiar with the boiler operation. Hand over all technical documentation to the user. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 33: Commissioning Report

    2). Confirm professional commissioning Company stamp/signature/date We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 34: Shutting Down The Heating System

    ! Close the mains gas shut-off valve. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 35: Heating System Inspection And Maintenance

    ! Work on gas components must only be WARNING! carried out by qualified and authorised personnel. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 36: Cleaning The Boiler

    Item 6: Contact protection on the monitoring cable We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 37 ! Reinstall the gas burner in reverse order. Fig. 18 Brush cleaning We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 38: Wet-Cleaning The Boiler

    Fig. 19 and Fig. 20). ! Only spray cleaning agent into the hot gas flues. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 39 36. ! Continue to ensure adequate ventilation of the boiler room. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 40: Cleaning The Gas Burner

    Pivoting the gas burner Item 1: Thermal insulation on the burner shield We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 41: Internal Leak Test

    10 mbar per minute. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 42: Checking And Correcting The Heating System Water Pressure

    ! Vent the heating system. ! Check the water pressure once more. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 43: Checking The Nozzle Pressure

    Fig. 24 Checking the nozzle pressure Item 1: Test point on the burner manifold We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 44 Tab. 16 Nozzle pressure for LPG B/P subject to the supply pressure Confirm maintenance ! Sign the maintenance report in this manual. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 45: Inspection And Maintenance Reports

    11. Final checks of the inspection work – Confirm the professional commissioning Company stamp/date/signature We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 46 µ µ µ µ µ ––––––––––––– ––––––––––––– ––––––––––––– ––––––––––––– ––––––––––––– ––––––––––––– We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 47 Clean the gas burner page 40 Confirm professional maintenance Company stamp/date/signature We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 48: Converting The Boiler To A Different Gas Type

    Item 2: Long version (natural gas H (G20), GZ50 or LPG) We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 49: Conversion To A Different Gas Type

    A (see the following pages). ! Reinstall the pilot gas pipe. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 50 Tab. 21 Nozzle pressure for LPG B/P subject to the supply pressure We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 51 PLEASE NOTE Item 1: Adjusting screw Retain all parts which are removed. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 52 BA, BG, GR, HR, LU, TR (G30) Tab. 22 Gas governor settings We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 53: Correcting Burner Faults

    Chapter 11 "Troubleshooting", page 55. Fig. 29 Reset button Item 1: Reset button We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 54: Burner Faults On Boilers With Digital Burner Control Unit (Burner Control Unit Mpa 50)

    Logamatic 4000 control unit Item 1: Boiler control thermostat Item 2: ON/OFF switch We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 55: Troubleshooting

    If required, treat the water and install a dirt trap. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 56 Visual check through the clean-out cover and combustion chamber. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 57: Digital Burner Control Unit

    Has the plug a loose contact or is there a break in the sensor lead? We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 58 Contact not OK (loose contact)? Check contacts and renew, if required. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 59 Flame may be visible at the main gas Is the start-up load setting correct? nozzles. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 60 Visual check through the clean-out cover and combustion chamber. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 61: Boiler Operating Conditions For Countries Outside The Eu

    Protection – – IP40 Tab. 23 Power supply We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 62: Boiler Room Conditions

    Tab. 24 Installation conditions – environment We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 63: Conditions For Air Supply And Flue Pipes

    Tab. 26 Fuel – natural gas H (physical requirements) We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 64: Conditions For Fuel - Natural Gas H (Chemical Requirements)

    Ensure the on-site protection against overpressure. Tab. 29 Fuel – LPG propane (chemical requirements) We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 65: Conditions For Hydraulics And Water Quality

    This manual is included with the technical documentation. Tab. 30 Hydraulics; water quality We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 66: Operating Conditions

    10 minutes by suitable means, e.g. a reduction in volume flow. We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 67: Keyword Index

    Nozzle pressure ....43 Operating conditions in countries outside the EU . 61 We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 68 Notes We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 69 Notes We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 70 Notes We reserve the right to make any changes due to technical modifications. Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003...
  • Page 71: Declaration Of Conformity

    14 Declaration of conformity...
  • Page 72 Your local heating contractor: Buderus Heiztechnik GmbH, 35573 Wetzlar http://www.heiztechnik.buderus.de e-mail: info@heiztechnik.buderus.de...

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