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Contents
1. Tighten the screws Fig 4 page 6 on the gas supply line and the burner again Make sure that the connection pipe gasket removed in step 17 is replaced Check gasket for damage and replace if damaged Attach connection lines for the flame roll out switch Remove wire or rope that was used to hold the gas supply line in step 16 Connect pilot gas line Fig 4 page 6 to the gas valve again Connect ignition cables Fig 4 page 6 to the automatic igniters Enter the required information on the conversion label and attach on the outside of the boiler jacket as close as possible to the nameplate Fig 6 Pilot burner assembly cut out view 1 2 3 4 Pilot burner assembly Pilot burner orifice Pilot gas line Ignition cable Buderus Instructions for conversion kit for Logano G334 X gas fired boiler e Issue 2012 11 7 Carrying out leak test USER NOTE i The boiler has two gas valves Make all measurements and adjustments on both gas valves 35 Open gas shut off valve in the gas line SYSTEM DAMAGE due to short circuit CAUTION Cover the hazardous locations before checking for leaks Do not spray the leak solution on wiring openings plugs or electrical connections Do not allow the solution to drip on these locations 36 Check the gas connection line to the gas valve for leaks with soap solution If no leaks are found continue with step 38 If any leaks are f2. 2 Scope of delivery WARNING 1 Honeywell gas solenoid valve conversion kit USER NOTE 393 691 comprising i Tip for the optimum utilization and setting black safety screw of the control s plus other useful information pressure adjustment screw red spring yellow label for gas valve 2 BBR 12 ignition gas orifices main gas orifices and seals unit label to be filled out and attached to the unit mea O N Technical documents We reserve the right to make any changes due to technical modifications Buderus Instructions for conversion kit for Logano G334 X gas fired boiler Issue 2012 11 3 3 Conversion to propane Read the instructions before conversion for your safety RISK TO LIFE A due to not observing the attached WARNING conversion instructions If you wish to convert the boiler for operation with propane the conversion from natural gas to propane must be carried out first as specified by the attached conversion instructions The following instructions must be followed for conversion of the boiler to propane 1 Ifthe boiler has been operating close the gas valve Otherwise continue with step 3 2 Disconnect heating system from the power supply and set the thermostat to the lowest setting 3 Remove safety screws from the left and right side panels then lift the front panel of the boiler and pull it forward Fig 1 Removing front panel of boil
3. 116 G334 X 132 Orifice 235 240 250 250 size Number 5 6 7 8 Tab 1 Orifce sizes USER NOTE These orifice sizes Tab 1 are exclusively for installations between 0 8500 feet above sea level Follow the Conversion instructions for high altitudes for installations between 8501 and 12000 feet above sea level Buderus 6 Fig 4 AN DOA A WHS Removing gas burner Ignition cable Flame roll out switch Connection lines to the gas valve Gas valve Connection lines to the flame roll out switch Gas supply line Retaining screw on the gas feed line Pilot burner gas line Fig 5 1 2 Removing the gas burner Fixing nuts Threaded studs We reserve the right to make any changes due to technical modifications Instructions for conversion kit for Logano G334 X gas fired boiler Issue 2012 11 22 23 24 25 26 27 28 29 30 31 32 33 34 We reserve the right to make any changes due to technical modifications Unscrew pilot burner unit from gas burner Disconnect ignition gas line frompilot burner Remove pilot burner orifice Place the new BBR 12 pilot burner orifice in the pilot burner assembly Screw the ignition gas line to the pilot burner assembly Install gas burners in boiler in reverse order of removal Tighten the fixing nuts well
4. gas valve Disconnect heating system from the power supply and inform your customer service technician or gas company 10 If the main burner has ignited the gas valve must be checked for leaks with soap solution If no leaks are 1 found continue with step 12 If leaks have been found switch ON OFF switch on gas valve clockwise to the OFF position Disconnect heating system from the power supply and set the thermostat to the lowest setting 11 Seal leaks Repeat steps 1 and 2 regardless of the control in use Caution With aquastat control continue with steps 3 and 4 with the Logamatic 2107 continue with steps 5 2 Screw plug for gas supply pressure measuring port and 6 3 Safety screw for inlet pressure setting Then repeat steps 7 to 10 regardless of the control 4 Screw plug for manifold measuring port in use 5 Safety screw for pilot pressure setting Fig 11 Gas valve 1 ON OFF button at ON position 12 Check the gas supply pressure at the connection while the boiler is operating The supply pressure for natural gas must be between 7 and 10 5 W C and between 11 and 13 W C for propane gas Record the measured values in the commissioning protocol in the installation and maintenance instructions Natural gas Propane ehh es inch re inch W C 73 4 4 10 4 92 4 4 10 3 116 4 1 10 3 132 4 2 10 2 Tab 2 Manifold pressure 13 Check manifold pressure The manifold pressure mus
5. 6304 2381 2012 11 US CA For heating engineers Propane Conversion Kit Instructions Logano G334 X gas fired boiler This conversion kit and the accompanying instructions are for conversion of G334 X gas fired boilers from natural gas to propane Required Input Rates G334 X 73 G334 X 92 G334 X 116 G334 X 132 301 MBtu hr 378 MBtu hr 476 MBtu hr 541 MBtu hr WARNING This conversion kit is intended for use by a qualified service company only as specified by the manufacturer s instructions and the current applicable rules and regulations of the local authorities and the regulations of NFPA54 CAN CGA B149 1 and 2 Installation Code must also be observed If these instructions are not followed exactly a fire explosion or release of carbon monoxide may occur with serious property damage or loss of life and serious injury The heating contractor is liable for correct conversion of the heating system with this conversion kit CAUTION Before converting the heating system to a different type of gas the gas line must first be shut off and then the power to the heating system must be disconnected KE CERTIFIED CERTIFIED www ahridirectory org Buderus H Note Please keep these instructions for future reference Please read carefully before conversion 1 1 Corect USE as 22 lt e2cbeseeeetoesitso8e242 45450548 42u 4254562 3 1 2 Notes StrUCtUrG o e oie nda weds wean
6. al modifications Instructions for conversion kit for Logano G334 X gas fired boiler e Issue 2012 11 Buderus 9 4 1 Making boiler ready for operation STOP First read the safety instructions on gt page 9 of this manual 1 2 Carry out leak test gt page 8 Wait five 5 minutes until all gas residues have dissipated Finally check whether there is any smell of gas including at floor level If there is a gas odor STOP Follow instructions in section B of the safety instructions on gt page 9 of this manual If there is no sign of a gas odor continue with the next step Open main gas valve 4 1 1 Placing heating system with aquastat control in operation The boiler is fully functional with the factory installed aquastat 3 Switch on ON OFF switch building side ON position This switches on the boiler with all its components Then continue with step 7 Make sure that the room thermostat signals a heat requirement set thermostat at least 10 F above room temperature Buderus 10 Fig 8 Switching on heating system with aquastat 1 ON OFF switch main switch We reserve the right to make any changes due to technical modifications Instructions for conversion kit for Logano G334 X gas fired boiler Issue 2012 11 4 1 2 Placing heating system with Logamatic 2107 accessory in operation The boiler is fully functional with the factory installed aquastat The Logamatic 2107 c
7. ed eee ee E oe eee eee E 3 1 3 Please observe these notes 2 2 ee es 3 Scope of OCLIVGNY oobi 2h d wee Se Gle meee dR ee6e Rs Hee betwee sd 3 Conversion to propane 0 00 cee eens 4 Start up instructions 60060 c ek ee eee eee eee ee ee eens 9 4 1 Making boiler ready for operation 0 02 eee ee 10 4 2 Then carry out start up procedures 2 2 ee ee 11 Buderus We reserve the right to make any changes due to technical modifications 2 Instructions for conversion kit for Logano G334 X gas fired boiler e Issue 2012 11 1 Safety Observe these instructions for your safety 1 3 Please observe these notes 1 1 Correct use RISK TO LIFE from explosion of flammable gases The conversion set is supplied for conversion of the G334X gas fired heater from natural gas to propane WARNING Never work on gas lines unless you are licensed for this type of work 1 2 Notes structure E tas RISK TO LIFE Additional symbols for identification of dangers and user i instructions from electric shock WARNING Disconnect the power supply to the RISK TO LIFE heating system before conducting any Identifies possible dangers emanating work on it e g switch off the heating from a product which might lead to serious emergency switch outside the boiler WARNING i f room injury or death if appropriate care is not taken Itis not sufficient just to switch off the control RISK TO LIFE from electric shock
8. er 1 Screws 2 Boiler front panel 4 Turn gas valve ON OFF button clockwise to OFF position Do not use force RISK TO LIFE A from explosion of flammable gases WARNING Wait five 5 minutes until all gas residues have dissipated Check whether there is any smell of gas including at floor level If there is a gas odor STOP Follow instructions in section B of the safety instructions on Page 9 If there is no sign of a gas odor continue with the next step Fig 2 Gas valve Buderus We reserve the right to make any changes due to technical modifications 4 Instructions for conversion kit for Logano G334 X gas fired boiler Issue 2012 11 Replace main gas orifices 5 Remove the safety screw for the orifice pressure adjustment on the gas valve Remove manifold pressure adjustment screw Remove stainless steel spiral spring Install the red spring from the Honeywell LP conversion kit in the gas valve 9 Screw in the new gas adjustment screw from the Honeywell LP conversion kit until it is flush with the top of the gas valve Then turn the manifold pressure adjustment screw six 6 full revolutions of 360 clockwise This corresponds to a pressure preset of approx 10 0 W C This setting must be checked with a pressure gauge on completion of the conversion 10 Install new black safety screw from the Honeywell LP conversion kit 11 Clean the gas valve housing and attach to yellow label from t
9. ese instructions are not followed exactly a fire or explosion may be caused with serious property damage or loss of life or serious injury Observe the start up instructions DANGER OF EXPLOSION A If you smell gas there is a danger of WARNING explosion No open flame No smoking Prevent spark formation Do not operate electrical switches including telephones plugs or door bells Shut off main gas supply valve Open doors and windows Warn other occupants of the building Evacuate the building Call gas company or fire department from outside the building A This unit is equipped with an igniter that automatically starts the pilot burner Do not attempt to ignite it manually B Check for an odor of gas around the system This test must also be conducted at floor level because some types of gas are heavier than air and may accumulate at floor level C Switch on the ON OFF switch on the gas valve by hand only Never use a tool as assistance If you cannot actuate the ON OFF switch on the gas valve by hand do not attempt to repair it Contact a qualified technician Any attempt to use force or to repair the switch may cause a fire or explosion D Do not operate the unit if any part is under water Contact a qualified customer service technician immediately to have the unit checked and to replace the parts of the control and gas valves that were under water We reserve the right to make any changes due to technic
10. he installation and maintenance instructions Replace front panel of boiler With the Logamatic 2107 control only 34 Select AUT automatic mode with the mode selection switch Buderus 14 Fig 14 Gas valve 1 ON OFF button at OFF position We reserve the right to make any changes due to technical modifications Instructions for conversion kit for Logano G334 X gas fired boiler Issue 2012 11 We reserve the right to make any changes due to technical modifications Buderus Instructions for conversion kit for Logano G334 X gas fired boiler e Issue 2012 11 15 United States and Canada Bosch Thermotechnology Corp 50 Wentworth Avenue Londonderry NH 03053 Tel 603 552 1100 Fax 603 965 7581 www buderus us U S A Products manufactured by Bosch Thermotechnik GmbH Sophienstrasse 30 32 D 35576 Wetzlar www buderus com Bosch Thermotechnology Corp reserves the right to make changes without notice due to continuing engineering and technological advances Buderus
11. he Honeywell LP conversion kit to a visible spot on the gas valve We reserve the right to make any changes due to technical modifications _ O i ar Fig 3 1 QA Rw ND Gas valve Safety screw Manifold pressure adjustment screw Stainless steel spiral spring Gas valve Yellow label Instructions for conversion kit for Logano G334 X gas fired boiler e Issue 2012 11 Buderus 5 12 13 Disconnect pilot burner gas line from gas valve Disconnect ignition cable from automatic ignition RISK TO LIFE due to incorrectly connected wiring wARNING When conducting maintenance work label all cables before disconnecting them 14 Label connection lines of flame roll out switch and 15 16 17 18 19 20 21 disconnect from the roll out switch Disconnect connection lines to the gas valve Tie gas line with wire or cord secure Unscrew retaining screws on gas supply line and on burner Place the gas connection pipe gasket ina safe place Check gasket for damage and replace if damaged Unscrew retaining nuts on burner plate and pull gas burner straight out When removing the burner make sure that the spacers remain on the studs Install the new main gas orifices and copper gasket Check with gt Tab 1 that the correct orifices for operation of the boiler are installed Orifice sizes for propane Model G334 X 73 G334 X 92 G334 X
12. ician or gas company 1 y Fig 12 Correct pilot flame setting 1 1 2to 1 1 2 inches 2 Pilot flame rae by Fig 13 Main burner 1 Main burner flame Instructions for conversion kit for Logano G334 X gas fired boiler e Issue 2012 11 Buderus 13 25 26 27 28 29 30 31 32 33 Turn gas valve ON OFF button clockwise to OFF position Close main gas shut off valve Disconnect heating system from the power supply and set the thermostat to the lowest setting Remove pressure measuring nipple and pressure gauge for measuring gas supply pressure and manifold pressure from the gas valve and close the openings with the screw plugs Repeat steps 1 to 10 depending on the control and 20 to restart the heating system Check the screw plugs for leaks with soap solution If no leaks are found continue with step 31 If leaks are found close gas shut off valve and switch ON OFF button on gas valve clockwise to the OFF position Disconnect the heating system from the power supply Seal leaks Open gas shut off valve and repeat step 24 Carefully wipe away the soap solution to prevent corrosion caused by the alkali content of the soap Check the function of the maximum aquastat to make sure that it switches off the boiler as soon as the boiler water temperature set at the aquastat or the Logamatic 2107 control is reached Record the result in the commissioning protocol of t
13. me through the sight glass gt Fig 10 page 11 in the burner housing The flame must have a steady and fixed contour and generally has a bluish color If the main burner flame meets the requirements proceed with step 21 If the main burner flame is too weak or is yellow or goes out turn the ON OFF switch gt Fig 11 page 12 on the gas valve clockwise to OFF Close the gas valve and disconnect the heating system from the power supply and contact the customer service technician or the gas company Checking ignition safety switch 21 22 23 24 We reserve the right to make any changes due to technical modifications Test the safety switch by closing the gas shut off valve The main burner flame gt Fig 13 and the pilot flame gt Fig 12 are extinguished After six 6 seconds at the most the main gas solenoid valve on the gas valve must close with an audible noise After 90 seconds the automatic igniter must switch to lock status and stop generating sparks Disconnect the heating system from the power supply Open main gas shut off valve Switch on unit power supply A normal operating cycle must follow If the gas valve operates correctly proceed to step 25 If the gas valve does not operate correctly switch ON OFF switch Fig 14 on the gas valve clockwise to the OFF position immediately Close main gas shut off valve Disconnect heating system from the power supply and inform the customer service techn
14. ontrol can also be installed in addition to the factory installed aquastat Switch on the heating system with the ON OFF switch on the control The burner starts operating if heat is required gt observe control service manual 5 Make sure that heat is required at the control Select Manual operation hand symbol with the mode selector switch 6 Switch on ON OFF switch I position Then continue with step 7 USER NOTE i After carrying out the instructions for starting described below the control must be set to AUT mode automatic operation with the mode selector Fig 9 Switching on heating system with Logamatic 2107 control 1 Mode selection switch 2 ON OFF switch 4 2 Then carry out start up procedures The following start up procedures must be carried out regardless of the control type 7 Look at the igniter through the sight glass in the burner housing Fig 10 Front view 1 Sight glass We reserve the right to make any changes due to technical modifications Buderus Instructions for conversion kit for Logano G334 X gas fired boiler Issue 2012 11 11 8 Turn gas valve ON OFF switch counterclockwise to ON position 9 The automatic igniter must generate sparks towards the pilot burner The pilot flame must appear and then ignite the main burner If the main burner does not ignite close the
15. ound close gas shut off valve 37 Seal leaks and repeat step 36 38 Close main gas shut off valve Remove the screw plug for the gas pressure measuring port on the gas valve Install pressure measuring nipple and attach a manometer pressure gauge to measure the gas pressure 39 Remove the screw plug for the manifold pressure measuring port on the gas valve Install pressure measuring nipple and attach a manometer pressure gauge to measure the manifold pressure 40 Open gas valve and measure the gas supply pressure of the boiler The supply pressure for natural gas must be between 7 and 10 5 W C and between 11 and 13 W C for propane gas If the supply pressure for natural gas is not between 7 and 10 5 W C and not between 11 and 13 W C for propane gas contact the customer service technician or the gas company 41 Always follow the start up instructions on the next page Buderus Fig 7 Gas valve 1 ON OFF button at ON position 2 Screw plug for gas supply pressure measuring port 3 Screw plug for manifold measuring port We reserve the right to make any changes due to technical modifications 8 Instructions for conversion kit for Logano G334 X gas fired boiler Issue 2012 11 4 Start up instructions Read the instructions before start up for your safety RISK TO LIFE A due to not observing the start up WARNING instructions and resulting incorrect operation f th
16. t be set in accordance with the values in gt Tab 2 To set the manifold pressure the cover gt Fig 11 on the gas valve must be removed Turn the adjustment screw clockwise to increase the pressure and counterclockwise to reduce the pressure This setting must be adjusted while the boiler is operating 14 Record the set value in the commissioning protocol of the installation and maintenance instructions and screw the safety screw gt Fig 11 page 12 into the gas valve again Buderus We reserve the right to make any changes due to technical modifications 12 Instructions for conversion kit for Logano G334 X gas fired boiler e Issue 2012 11 15 16 17 Observe pilot flame through the sight glass gt Fig 10 page 11 in the burner housing The flame must envelope the flame guard 1 2 to 1 1 2 inches If this is the case continue with step 20 If the pilot flame is too small or too large the pressure for the pilot must be adjusted with the corresponding adjustment screw USER NOTE i The adjustment screw is behind the pilot 18 19 20 pressure adjustment safety screw gt Fig 11 page 12 Remove safety screw for pilot pressure setting gt Fig 11 page 12 Turn the inner adjustment screw clockwise to reduce the pilot flame and counterclockwise to enlarge the pilot flame After adjustment tighten the pilot pressure adjustment safety screw gt Fig 11 page 12 again Observe main burner fla
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