Buderus G234X/38 Installation And Service Instructions Manual Download Page 34 | Manualshive

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Logano G234X – 6 720 811 233 (2017/02)

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Summary of Contents for G234X/38

Page 1: ...em is carried out by an unqualified person this may result in a fatal injury or property damage Follow the instructions in this installation and maintenance manual exactly If you require assistance or...

Page 2: ...ting the flue connector 14 5 7 1 Check openings for combustion air supply and venting 14 5 7 2 Requirements for connection to chimneys or flue gas systems 15 5 7 3 Installing the flue pipe 16 5 7 4 Co...

Page 3: ...is not be fitted with a barometric damper or a thermally controlled vent damper downstream of the flue connector Do not tamper with remove or attempt to repair the flue gas shutoff switch When replac...

Page 4: ...ns or repairs 2 Product Description This installation and maintenance manual contains important information for the safe and correct installation initial commissioning and maintenance of this boiler T...

Page 5: ...fashion Dispose of any components of the heating system that require replacement in an environmentally responsible fashion at an approved landfill Notice regarding environmental protection and dispos...

Page 6: ...0 11 16 25 10 16 2 10 16 38 7 16 729 465 137 147 348 650 66 1034 975 6 720 806 028 02 1T Boiler size Unit 38 5 45 5 55 6 64 7 Ignition heat load MBTU hr 160 187 228 266 kW 46 9 54 8 66 8 78 0 Nominal...

Page 7: ...r of injectors Main gas orifice identification Rated orifice pressure for natural gas 0 8500 ft 0 2591 m In W C mbar 38 3 3 70 3 0 7 6 45 3 3 70 4 1 10 4 55 4 3 50 4 6 11 5 64 4 3 80 4 4 10 9 Table 4...

Page 8: ...boiler and roll it on additional pipes to the installation location Fig 5 Place the boiler in its final position Fig 5 Transporting the boiler on rollers NOTICE Risk of system damage from impact shoc...

Page 9: ...l the boiler both horizontally and vertically using a spirit level Insert metal shims underneath if necessary Fig 7 Leveling the boiler example DANGER Danger posed by explosive and combustible materia...

Page 10: ...e right side NOTICE Risk of boiler damage due to moisture Protect the individual components of the control system and the ignition system from damp dripping water water spray rain during installation...

Page 11: ...le regulations Mount an ON OFF switch near the boiler Fig 10 Main power switch by customer DANGER Risk of fire from flammable materials Maintainaclearanceof2inches 51 mm frompipes carrying hot water a...

Page 12: ...l code We recommend installing a manual shutoff valve in the main gas pipe to the boiler The gas pipes must be fastened outside the boiler The gas supply pipe is designed for a gas connection on the r...

Page 13: ...ersionkitsforconvertingtheboilerfromnaturalgas to propane gas can be obtained from Bosch Do not attempt to convert the appliance without the approved Buderus parts and the relevant technical documenta...

Page 14: ...building codes In Canada the regulations in accordance with CAN CSA B 149 1 and 2 Installation Codes apply NOTICE System damage due to faulty safety valve Do not install the safety valve until the lea...

Page 15: ...the outside through vertical ventilation ducts each opening must have a minimum cross section of one square inch per 2000 Btu h 1100 mm2 kW of the total burner output of all gas fired appliances insi...

Page 16: ...oles provided in the vent damper 1 Fasten vent damper to the flue connector adapter with three 3 corrosion resistant sheet metal screws A Seal all unused openings of the common flue gas system B Perfo...

Page 17: ...s are permitted to carry out electrical work Beforeopeningtheappliance Disconnectitfromthe power supply via the ON OFF switch or the appropriate building fuse Take measures to ensure that the heating...

Page 18: ...lose the gas shutoff valve seal the leaks and repeat step 6 8 Close the gas shutoff valve Remove the screw plug from the gas supply pressure test point 2 on the gas valve in order to measure the gas s...

Page 19: ...and subsequent incorrect operation Risk of fire and explosion from failure to observe the startup instructions Read the startup instructions carefully before commissioning DANGER Risk of fatal injury...

Page 20: ...32 4 mbar Record the measured values in the commissioning report page 23 11 Check nozzle pressure Set the orifice pressure according to Table 11 while the boiler is operating To do so remove the safet...

Page 21: ...21 Disconnecttheheatingsystemfromthepowersupply Openthegas shutoff valve Switch on the power supply for the appliance A normal operating cycle must follow If the gas valve operates correctly Proceed t...

Page 22: ...4 Fig 28 Checking temperature control 1 Adjustment keypad 6 6 Shutting off gas supply to boiler Set the room thermostats to the lowest setting Disconnect the heating system from the power supply befor...

Page 23: ...rifice pressure and adjust if necessary inches W C or mbar Page 20 Meas value _____________________________ Unit _____________________________________ 7 Leak test during operation Check ignition flame...

Page 24: ...gulations are strictly observed To protect the environment we use the best possible technology and materials taking into account economic points of view Packaging method For the packaging we participa...

Page 25: ...e boiler for cleaning Shut down the heating system Section 7 1 page 24 Remove front wall of boiler Fig 18 page 18 Turn the gas valve ON OFF knob 1 clockwise to the OFF position Do not use excessive fo...

Page 26: ...on the studs Fig 32 Removing the burner 1 Retaining nuts 2 Studs with spacers 9 5 2 Cleaning the boiler with brushes mechanical cleaning Remove the boiler casing and thermal insulation check for damag...

Page 27: ...ning the burner Remove burner Section 9 5 1 Check burner rods for dirt If necessary clean burner as described below Unscrew pilot burner unit Fig 35 1 from burner Disconnect pilot gas line 3 from pilo...

Page 28: ...any other flammable or corrosive vapors and liquids Complete the maintenance log to confirm that all maintenance work has been carried out page 31 Sign the maintenance log and familiarize the owner w...

Page 29: ...the If everything is OK replace pilot assembly No Heat requirement ended system switches off flue baffle closes End of troubleshooting Repeat procedure until heating system operates properly On model...

Page 30: ...n flame Specified thermostat value control reached Main and ignition gas valves close gas burners ex tinguished vent damper if installed closes Ignition burner operation Ignition flame burns automatic...

Page 31: ...ge 18 ___________ inches W C ___________ inches W C 8 Check for leaks during operation Page 18 9 Check the pilot burner flame Page 20 10 Check the main burner flame Page 21 11 Check the vent damper Pa...

Page 32: ...Blocked vent switch Intermittent pilot dual valve combination gas control VR8304 Pilot burner Honeywell Main valve Pilot valve green blue white red GND MV MV PV GND PV MV PV MV 24V 24V 4 3 2 1 Ref no...

Page 33: ...ulator To Pilot Burner Spark Gas valve Main Pilot PV PV MV GND MV S8600H GND PV PV MV MV 24V 24VGND K1 TR High Limit Flame roll out safety shutoff switch K2 B2 L2 N L 24V AWG 18 WIRE 120 VAC Wiring Sc...

Page 34: ...10 Logano G234X 6 720 811 233 2017 02 34 Notes...

Page 35: ...10 Logano G234X 6 720 811 233 2017 02 35 Notes...

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