Low-temperature oil/gas boiler WARNING! Improper installation, set-up, modification, operation or maintenance of the heating system can cause personal injury and property damage. Follow these instructions precisely. If you require assistance or further information, contact a trained and certified installer or the gas supply company. 6 720 817 939-00.1T WARNING! The operating instructions are part of the technical documents that must be handed over to the owner or operator of the heating system.
Contents About this manual The appliance has been tested to meet all national requirements in effect on the date of manufacture. The conformity has been confirmed. The corresponding documentation and the original Declaration of Conformity are on file with the manufacturer. This installation and maintenance instructions contain important information for the safe and proper installation, initial start-up and maintenance of the oil/gas-fired boiler Logano G315.
Key to symbols and safety instructions 8 Connecting the boiler on the flue gas side . . . . . . . . . . . . . . . 24 8.1 Installing a vent pipe sealing collar (accessory) . . . . . . 24 8.1.1 Installing a flue gas temperature sensor (accessory) . . 24 1 Key to symbols and safety instructions 1.1 Key to symbols 1 Warnings 9 Installing a control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1 Installing the Logamatic control panel . . . . . . . . . . . . . 9.
1 1.2 Key to symbols and safety instructions General safety instructions Danger from failing to consider your own safety in an emergency such as a fire ▶ Never risk your own life. Your own safety must always take the highest priority. Installation, conversion Only have the appliance installed or modified by a trained and certified heating contractor.
Product description 2 Product description The oil/gas-fired boiler Logano G315 has been developed and built employing the latest technologies and safety regulations. 2 Particular emphasis is placed on ease of operation. Please observe the safety instructions and the operating instructions to ensure optimum safe, economical and environmentally-friendly utilization of your system. The main components of the Logano G315 oil/gas-fired boiler are: • Boiler block ( Fig.
2 2.1 Product description Designated use The Logano G315 oil/gas-fired boilers have been designed for the heating of water. The Logano G315 can be operated with oil, gas, and combination burners. For a list of the approved burners, please contact Bosch Thermotechnology Corp. This boiler can be operated with an aquastat, the Logamatic 4000, and other control systems. 2.2 Operating conditions Thermostream technology is a unique feature of Buderus cast iron boilers.
Product description 2.
3 3 Specifications Specifications 34-41/64" 34 41/64" (880 mm) 2-13/64" 2 13/64" (56 mm) RK 4-11/64" 4 11/64" (106 mm) 32-13/64" 32 13/64" (818 mm) 6 7/64" (155 mm) 36-59/64" 36 59/64" (938 mm) 47-3/64" 47 3/64" (1195 mm) VK 17-23/32" 17 23/32" (450 mm) 40-3/4" 40 3/4" (1035 mm) VK EL 7" (180 mm) LK L Fig. 3 EL LK L RK VK 6 720 642 621-48.
Specifications 3 Logano G315 Boiler capacity Number of boiler sections Nominal output Unit – Btu/hr 105 5 293.500 – 358.000 140 6 362.000 – 477.800 170 7 481.000 – 580.200 200 8 583.600 – 682.600 230 9 686.000 – 784.990 Combustion output (kW ) Btu/hr (86 – 105) 314.300 – 387.300 (106 – 140) 387.300 – 516.700 (141 – 170) 515.300 – 625.900 (171 – 200) 624.900 – 734.100 (201 – 230) 734.400 – 846.000 (kW) (92.1 – 113.5) (113.5 – 151.4) (151.0 – 183.4) (183.1 – 215.1) (215.2 – 247.
4 Scope of delivery Logano G315 Boiler capacity Maximum permissible supply temperature3) Maximum permissible operating pressure Unit °F 105 140 170 248 ( °C) PSI (120) 87 (bar) (6) 200 230 Table 4 1) Weight with packaging approx. 6 – 8 % higher. 2) The details relate to the upper and lower rated output range. 3) Safety limit (high limit safety cut-out). Maximum possible supply temperature = safety limit (STB) – 32 °F (–18 K). Example: Safety limit (STB) = 212 °F (100 °C), max.
Positioning the boiler Positioning the boiler This chapter describes how to properly position the Logano G315. NOTICE: Risk of damage from freezing. ▶ Install the system in a room free from thedanger of freezing. 6.1 (3080 mm) For the correct arrangement of the flange when performing the assembly procedure, refer to page 22. 6.2 L1 Recommended wall clearances 34 41/64" (880 mm) ≥ 15 3/4" (400 mm) AB + 4" (AB+100 mm) LK Boiler assembly tool size 2.
7 Boiler block assembly Boiler capacity MBH (kW) Boiler sections 358 – 686 5–9 (105 – 230) Clearance A in inches (mm) Recommended Minimum 59 (1500) 39-3/8 (1000) 7 Boiler block assembly WARNING: Risk of injury from improperly secured boiler sections. ▶ Use only suitable means of transportation when handling the boiler sections, e.g. a heavy duty hand truck. When handling, secure the boiler sections to the means of transport to prevent them slipping.
7 Boiler block assembly 7.1 Assembly of a boiler block from sections WARNING: Risk of injury from inadequately secured boiler sections. ▶ Secure boiler sections during assembly and take measures to prevent them from tipping over. If a hoisting tool is available, this can be used to set up the boiler sections safely. ▶ Clean the packing grooves where required using a wire brush and cloth (Fig. 10, [3]). ▶ Clean the hub sealing faces (Fig. 10, [1 and 2]) with a rag soaked in solvents or gasoline.
7 Boiler block assembly 1 1 2 2 6 720 642 621-07.1o 6 720 642 621-09.1o Fig. 11 Driving nipples home Fig. 13 Inserting sealant rope The packing grooves (Fig. 12, [1]) must be clean and dry to enable the sealant rope to adhere properly. Preparation of the first intermediate section: ▶ Coat the packing grooves with adhesive (primer). ▶ ▶ ▶ ▶ ▶ File down any burrs on the hubs (as shown in Fig. 9). The packing springs must be clean and dry. Clean if necessary.
Boiler block assembly The directional arrow ( Fig. 15, [3]) must point in the direction of the rear boiler section. ▶ Position the intermediate section so that the upper and lower hubs ( Fig. 15, [2 and 4]) fit onto the nipples in the rear section. 7 1 ▶ Pound first intermediate section onto the rear section using a wooden or a rubber mallet ( Fig. 15, [1]). 2 1 2 3 6 720 642 623-18.1o Fig. 16 Boiler assembly tool 2.3 4 6 720 642 621-11.1o Fig.
7 Boiler block assembly 2 3 2 3 1 6 720 642 621-13.1o 1 Fig. 18 Boiler assembly tool on rear section NOTICE: ▶ Never compress more than one nipple connection (two sections) per pressing operation since otherwise the boiler block could compress unevenly. This causes leaks in the nipple connections. Fig. 19 Fitting the tie rods ▶ The next step describes the installation of the supply pipe ( Chapter 7.4, page 17). 7.
7 Boiler block assembly 7.4 Sliding the supply pipe into place 7.6 ▶ Push the flat gasket (Fig. 21, [1]) over the supply pipe (Fig. 21, [4]). ▶ Push the supply pipe from the front into the top boiler hub. ▶ Close off with flange cover (Fig. 21, [2]). The supply pipe must be fixed in such a way that the holes on the supply pipe are positioned at the correct angle. This ensures optimum distribution of water in the area of the top boiler hub.
7 Boiler block assembly 7.6.2 Sealing leaks ▶ If a hub connection is leaking, first drain the water through the fill/ drain valves. ▶ Remove supply pipe. ▶ Undo nuts on four tie rods and remove tie rods. 1 ▶ Separate the boiler at the leak location by driving (ponding) in flat wedges or chisels between the sections at the designated points (Fig. 24, [1 and 2]) at the top and bottom. 2 6 720 642 621-19.1o Fig. 24 Separating the boiler block ▶ Use new nipples and new sealant rope for the reassembly.
7 Boiler block assembly 1 7 2 6 5 3 4 6 720 817 939-13.1T Fig. 26 Supply flange with safety components [1] [2] [3] [4] [5] [6] [7] 7.7 Low water cut-off (LWCO) System connection Optional Optional Aquastat Boiler connection Supply sensor well 1 2 3 4 Boiler water connections 5 Please observe the following information regarding the boiler connection to the system side. These instructions are important for trouble-free operation. 6 NOTICE: Risk of system damage from leaking connections.
7 7.8 Boiler block assembly Installing fittings and burner door 7.8.3 Inserting the flue gas baffle plates Next step in the assembly process is to install the burner door and draft diverter. The pre-assembled boiler comes with these components already installed. 7.8.1 Positioning the draft diverter KM ropes (Fig. 28, [1]) are used to seal the connections between the boiler and the draft diverter (Fig. 28, [2]). ▶ Coat the packing grooves with adhesive (primer).
7 Boiler block assembly 6 1 ▶ Screw the bottom crosswise tie bar (Fig. 33, [2]) to the feet of the rear section with two machine screws (M 8 x x 15). The folded edge of the bottom crosswise tie bar must point towards the back. 5 1 2 4 3 2 6 720 642 621-22.1o Fig. 31 Hooking in the burner door 7.9 6 720 642 621-27.1o Boiler outer casing This section describes how to install thermal insulation and cladding components. 7.9.
7 Boiler block assembly ▶ Push rear section thermal insulation (Fig. 35, [2]) onto the flue outlet. The cut-out for the boiler flow and boiler return must point upwards. ▶ Hook the rear section thermal insulation to the top rear crosswise tie bar with two spring hooks (Fig. 35, [1]). ▶ Close the slot below the flue outlet with spring hooks (Fig. 35, [3]). 1 7.9.3 Fitting side panels and top covers ▶ Attach side panel (Fig. 37, [1]) with the cut-outs into the slots of the top connection plates (Fig.
7 Boiler block assembly ▶ Place rear cover (Fig. 39, [1]) between the side panels so the cut-out (Fig. 39, [2]) fits over the tie bar. 1 2 1 2 6 720 817 939-03.1T Fig. 41 Fitting the rear boiler panel 6 720 642 621-33.1o ▶ Screw the bottom rear boiler panel (Fig. 42, [2]) with the cut-out for the fill and drain connection down onto the side panels (Fig. 42, [1 and 3]). Fig. 39 Fitting the rear cover Push the base rails (Fig.
8 Connecting the boiler on the flue gas side ▶ Attach the front panel (Fig. 43, [3]) at the bottom in the center to the base panel (Fig. 43, [2]). ▶ Attach the front panel at the top to the folded edge of the front cover (Fig. 43, [1]). 8 This chapter explains how to connect the boiler on the flue gas side. 8.1 3 Installing a vent pipe sealing collar (accessory) We recommend you use a vent pipe sealing collar ( Fig. 45, [1]).
9 Installing a control panel 9 Installing a control panel 9.1 Installing the Logamatic control panel Fig. 46 shows the control panel and the front top cover from behind. ▶ Undo both screws in the terminal cover (Fig. 46, [1]). Lift the terminal cover up and off. ▶ Put the control panel in place. Fit the control panel at the front by inserting the alignment tabs (Fig. 46, [4]) into the oval holes in the front top boiler cover (Fig. 46, [5]). Pull the control panel forwards and then tip backwards.
9 Installing a control panel 1 2 6 720 642 621-42.1o 6 720 642 621-40.1o Fig. 49 Making the electrical connections Fig. 51 Boiler control panel installed 9.3 ▶ Wire up the electrical connections as shown in the wiring diagram. Take care to ensure correct cable and capillary tube routing.
Installing a control panel 9.4 Wiring Hydrolevel Hydrostat with Riello F15 Burner CAUTION: Risk of system damage from incorrect connections. Wrong connections can cause damage to the primary safety control. ▶ Connect the hot (black) wire to the L terminal and the neutral (white) wire to the N terminal. ▶ Do not connect either wire to the terminal. 9 The SAFETY SWITCH in the 530SE CONTROL BOX is equipped with a contact allowing remote sensing of burner lockout.
Installing a control panel 1 2 4 BLUE BLACK WHITE Z T 6 COIL BROWN BLACK VALVE 5 7 MOTOR CAPACITOR 8 9 BROWN 3 WHITE 2 BLUE 1 L BLACK N WHITE 9 D5995 TV L1 L2 C1 C2 B1 B2 I1 I2 B1 - L B2 - N L N 120VAC G + EQUIP GND TERMINAL 6 720 817 939-07.1T Fig.
9 Installing a control panel 9.
10 10 Mounting the burner Mounting the burner This chapter explains the basic steps involved in fitting a burner. NOTICE: Risk of system damage from use of incorrect burner. ▶ Only use burners that meet the technical requirements of the oil/gas-fired boiler Logano G315 ( chapter 3, page 8). ▶ Close the burner door and seal with 4 machine screws (M16 × 140) ( Chapter 7.8.4, page 20, Fig. 31, [5]). Tighten the machine screws evenly crosswise.
System start-up 11 11.1 System start-up ▶ Complete the commissioning log ( Chapter 11.6, page 32). Overall boiler output MBH (kW) 341 < Q 1,194 (100 < Q 350) 1,194 < Q 3412 (350 < Q 1000) 341 < Q 1,194 (100 < Q 350) 1,194 < Q 3412 (350 < Q 1000) Ca (HCO3)2 concentration / grains per gallon1) ppm 11.7 (2.0) Filling the system NOTICE: Risk of system damage from temperature stresses. ▶ During operation, only fill the heating system via the fill valve on the system side.
11 System start-up Removing flue gas baffles For boilers with 7 – 11 boiler sections (819 – 1,553 MBH or 240 – 455 kW) an increase of the flue gas temperature can be achieved through pair-wise removal of the upper or lower flue gas baffles. 11.6 Commissioning log The Logano G315 can be used with an oil- or gas-fired burner. Fill in the commissioning log for the appropriate type of oil or gas burner carefully. Commissioning operations 1. Perform leak test of the entire system 2.
Shutting down the system 12 Shutting down the system You can connect control panels of the 4000 series to the Logano G315. The shutting down process for the different types of control panel is the same. NOTICE: Risk of system damage from freezing. ▶ The heating system can freeze up if it is disabled, e.g. shut down due to a fault. ▶ Protect the heating system from freezing when temperatures below freezing are expected.
13 System inspection and maintenance ▶ Take the flue gas baffle plates forwards out of the flue gas passages (Fig. 61, [1 – 4]). 3 4 2 3 2 1 6 720 642 621-46.1o 1 Fig. 63 Heat exchanger heater flue, cleaning 6 720 642 621-44.1o Fig. 61 Flue gas baffles, removing The various brush types available from Buderus (optional extras) are shown in Fig. 62. 1 2 ▶ Undo the four self-tapping screws on the rear boiler panel at the bottom. ▶ Remove bottom rear boiler panel.
System inspection and maintenance 13 ▶ Insert the flue gas baffle plates in the flue gas passages ( Chapter NOT DEFINED, page 20). ▶ Fasten cleanout cover and close burner door. Tighten screws evenly. ▶ Close the burner door and tighten the screws evenly. ▶ Fold the rear section thermal insulation down and pull together under the flue outlet using the spring hook (Fig. 65, [1]). 7 747 019 141-17.1RS Fig. 66 Pressure/temperature gauge 13.6 1 6 720 642 621-47.
13 System inspection and maintenance 13.7 Inspection and maintenance reports The inspection and maintenance logs provide an overview of the required inspection and maintenance work. Inspection work 1. Check general condition of heating system 2. Visual inspection and function check of the heating system 3. Check fuel and water-carrying components of the system for: 4. 5. 6. 7. 8. 9. 10.
System inspection and maintenance Additional maintenance work as-needed 1. Shut down the heating system Page 33 2. Remove and clean flue gas baffles 34 3. Clean the flue gas passages (heating surfaces) 34 4. Clean the combustion chamber 34 5. Clean the draft diverter 34 6. Insert the flue gas baffles 35 7. Check gaskets/sealant ropes on the burner and burner door and replace if required (see burner documentation) Commissioning the heating system 31 8. 9. 10.
14 14 Troubleshooting burner faults Troubleshooting burner faults Heating system faults are shown on the display of the control panel. You will find detailed information regarding fault displays in the service instructions for the relevant control panel. The burner fault is also indicated by a fault lamp on the burner. NOTICE: Risk of system damage from freezing. The heating system can freeze up in cold weather if it has been disabled due to a fault shutdown.
Spare parts 15 15 Spare parts ▶ Request spare parts with name and part number using the spare parts list. 1 4 2 3 5 7 6 8 6720817939-15.1T Fig. 67 Spare parts Logano G315 Item ( Fig.
15 Spare parts 26 21 27 1 22 14 19 15 13 14 20 15 13 24 23 3 9 4 18 5 19 11 7 14 12 10 8 15 13 14 10 16 7 2 6 26 27 17 25 6720906566.aa.RS-Kesselblock G315 Fig.
Spare parts Item ( Fig.
15 Spare parts Item ( Fig. 68) 25 26 27 Designation Hinge G315 Sealing compound brown Ramming mass Calde Cast XL106 C/G 2.5 kg Fittings G315 5-pc loose spare Fittings G315 6-pc loose spare Fittings G315 7-pc loose spare Fittings G315 8-pc loose spare Fittings G315 9-pc loose spare Primer 181, 12.
Spare parts 8 5 6 15 6 9 3 4 5 6 6 7 9 8 7 1 1 2 10 11 2 6720906567.aa.RS-Kesselblock-Anbauteile G315 Fig.
15 Spare parts Item ( Fig. 69) Designation 1 Flue gas baffle top 220 mm G315 for 9 segments Flue gas baffle top 380 mm G315 for 5/8 segments Flue gas baffle top 460 mm G315 for 6/7 segments 2 Flue gas baffle bottom 220 mm G315 for 9 segments Flue gas baffle bottom 380 mm G315 for 5/8 segments Flue gas baffle bottom 460 mm G315 for 6/7 segments 3 Draft diverter compl.
Spare parts 15 1 13 5 14 14 2 15 18 3 17 16 4 3 11 20 8 M10x25 12 M12x35 7 6 21 9 10 6720906568.aa.RS-Brennertür G315 Fig.
15 Spare parts Item ( Fig. 70) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 20 21 Designation Burner door compl. G315 VE sealant rope GP 14x10000 VE sealant rope GP 14x2500 Thermal insulation burner door G315 Insulation plate for burner door GE 315 Insulation ring burner door G315 Hinge eye [70002675] Washer DIN125-A13-A3K Burner plate 270x270x10 mm Burner plate 10x270x270 mm (D:140 mm) Burner plate 10x270x270 mm (D:160 mm) VE sealant rope GP 10x10000 VE sealant rope GP10x1070 mm long Washer DIN125 pcs.
Spare parts 15 1 5 8 10 10 9 2 12 3 17 11 4 3 20 21 7 6 M12x35 6720906569.aa.RS-Brennertür VM-Brenner G315 Fig.
15 Spare parts Item ( Fig. 71) 1 2 3 4 5 6 7 8 9 10 11 12 17 20 21 Designation Burner door G315 VM Sealant rope 14x2500 GP Thermal insulation burner door G315 VM Insulation plate for burner door G315 VM Insulation ring burner door G315 Hinge eye [70002675] Washer DIN125-A13-A3K Inspection hole cover plate cpl. Countersunk screw M5x16-DIN963-Ms Gasket D42x52x1.5 mm Pressure testing nipple, G1/8" Hex-head bolt ISO4017 M12x45 (10x) Washer DIN9021 A6,4 A3K Sealing compound brown Ramming mass JM 500/G 3.
Spare parts 15 1 25 7 25 25 6 25 18 11 12 5 17 4 16 25 25 2 3 25 14 Bu d GE eru 31 s 5 10 25 9 5 22 2 19 15 20 13 8 25 21 25 6720906570.aa.RS-Verkleidung G315 Fig.
15 Spare parts Item ( Fig. 72) Designation 1 Jacket compl. 5 sections G315 Jacket compl. 6 sections G315 Jacket compl. 7 sections G315 Jacket compl. 8 sections G315 Jacket compl. 9 sections G315 Jacket G315 5pcs cpl VM V1 Jacket G315 6pcs cpl VM V1 Jacket G315 7pcs cpl VM V1 Jacket G315 8pcs cpl VM V1 Jacket G315 9pcs cpl VM V1 2 Bottom tie bar G315 3 Tie bar front top G315 4 Tie bar rear top G315 5 Side panel compl. 909 mm long 5 sections G315 Side panel compl.
Spare parts 15 4 3 20 2 20 20 20 5 6 1 13 20 4 15 14 M16x65 6 7 M16x65 21 7 12 8 9 10 G1/4" 11 G1" 27,5x17 20 21 G1/4"xG1/4" 6720817939-14.1T Fig.
15 Spare parts Item ( Fig. 73) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 20 21 Designation Cap valve with drain & fill valve OV pressure gauge block valve 1/2"AG, PN250, Röhrenfeder pressure gauge d:100 mm, 0-10 bar Set of grommets for safety armatures Thermometer D100,g1/2.0-120degrees C,100lg Seal DIN2690 DN65 2 mm Washer DIN125-A17-A3K Pressure regulator with adapter for KSS Gasket D24x30.
Index Index A Added water ........................................................ 31 B Boiler conditions of use ............................................... 5 C Control Panel Assembly .............................................. 5 F Fill water ............................................................ 31 Flow temperature ..................................................... 6 Fuels .................................................................. 5 O Operating pressure, maximum.............
Appendix Appendix Data and system handover Type ______________________ User ______________________ Manufacturer no. ______________________ Location ______________________ System installer ______________________ The system named above has been installed and commissioned according to standard engineering practice, as well as provisions of the buildings inspectorate and any legislative requirements. The technical documentation has been handed over to the user.
Appendix Logano G315 – 6 720 817 939 (2016/04) 55
